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1
Campbell, Kristopher, Myra Lydon, Nicola-Ann Stevens, and Su Taylor. "Analysis of Arch Bridge Condition Data to Identify Network-Wide Controls and Trends." Infrastructures 9, no. 4 (April 4, 2024): 70. http://dx.doi.org/10.3390/infrastructures9040070.
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This paper outlines an initial analysis of 20 years of data held on an electronic bridge management database for approximately 3500 arch bridges across Northern Ireland (NI) by the Department for Infrastructure. Arch bridges represent the largest group of bridge types, making up nearly 56% of the total bridge stock in NI. This initial analysis aims to identify trends that might help inform maintenance decisions in the future. Consideration of the Bridge Condition Indicator (BCI) average value for the overall arch bridge stock indicates the potential for regional variations in the overall condition and the potential for human bias in inspections. The paper presents the most prevalent structural elements and associated defects recorded in the inspections of arch bridges. This indicated a link to scour and undermining for the worst-conditioned arch bridges. An Analysis of Variance (ANOVA) analysis identified function, number of spans, and deck width as significant factors during the various deterioration stages in a bridge’s lifecycle.
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Aravind Ramesh Gaikwad and Vaibhav Shelar. "Study on non-linear analysis of arch bridges subjected to ground motion." World Journal of Advanced Engineering Technology and Sciences 9, no. 1 (June 30, 2023): 211–19. http://dx.doi.org/10.30574/wjaets.2023.9.1.0161.
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Thanks to the cantilever launching technique, arch bridge building has once again become popular throughout the world. Today, these structures are one of the three main types of long-span bridges, along with suspension and cable-stayed bridges. Arch bridge structures have a complex behavior during powerful earthquakes because the arch rib is an element that is primarily susceptible to a large axial compression force brought on by dead loads. The nonlinear dynamic analysis of an arch bridge using STAAD Pro V8i software with earthquake loading is the subject of this research. Due to their easy load bearing qualities, arch bridges with short and medium spans are currently being constructed frequently for traffic bypass. Therefore, it is necessary to assess its stability in the event of a powerful earthquake. The STAAD-modeled arch bridge's nonlinear, time history analysis. The research in this study uses pro. For Time History analysis, data from the Bhuj Earthquake of 2001 is used, and the Rudramata Bridge, which collapsed during the Bhuj Earthquake, is researched. The primary focus of this study is on the analysis of the displacement, time-velocity, and time- acceleration responses of an arch bridge to lateral loads. And the results demonstrate that the displacement for the arch bridge is less than that for the Rudramata Bridge in all three directions.
3
Tan, Geem Eng, Tai Boon Ong, and Ong Chong Yong. "Trends and Development of Precast Concrete Closed Spandrel Arch Bridge Systems." Applied Mechanics and Materials 802 (October 2015): 295–300. http://dx.doi.org/10.4028/www.scientific.net/amm.802.295.
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Arch bridges which have existed since thousands years ago showed surprising durability. Due to the aesthetic value of arch bridges, it is widely used as crossing over valleys and rivers nowadays. Closed spandrel arch bridge is one type of arch bridges that has been developed using precast concrete technology since 1965. Currently, the available Precast Concrete Arch Bridge Systems are BEBO arch, Matiere arch, CON/SPAN arch, TechSpan arch, NUCON arch, Concrete-Filled FRP Tube arch, Flexi-Arch, Rivo CS-P Series arch and Pearl Chain arch. In this paper, development of the Precast Concrete Closed Spandrel Arch Bridge System is reviewed. The advantanges of precast closed spandrel arch bridge system will also be briefly presented. Comparisons in terms of arch sections, moulding, handling, transporting and installing among different Precast Concrete Closed Spandrel Arch Bridge Systems are also highlighted.
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Ding, Yanchao, Zhongfu Xiang, Yayong Li, Xuesong Zhang, and Yin Zhou. "Mechanical System Evolution and Reasonable Structural Design Parameters of Long-Span Deck-Type Beam-Arch Composite Rigid Frame Bridge." International Journal of Design & Nature and Ecodynamics 15, no. 6 (December 26, 2020): 885–93. http://dx.doi.org/10.18280/ijdne.150614.
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Long-span deck-type beam-arch composite rigid frame (BACRF) bridge fully integrates the merits of arch bridges and beam bridges, and overcomes the cracking and deflection problems of continuous rigid frame bridges. As a perfect combination of beam bridges and arch bridges, the long-span deck-type BACRF bridge boasts a light structure, a strong bearing capacity, and a powerful spanning capability. From the perspective of mechanical system evolution, this paper theoretically analyzes the structural mechanics of the beam-arch composite system, establishes a half-bridge model for BACRF bridge, and derives the expressions of the internal force and displacement of the beam-arch composite system. Next, finite-element analysis was conducted to analyze how the variation of a single parameter, e.g., rise-span ratio, open web ratio, and side-to-middle span ratio, affects midspan displacement, arch-beam junction displacement, main beam bending moment, and main arch axial force. Finally, the calculation formula for deflection-span ratio of BACRF bridge was proposed based on the maximum hyperplane method. The research results provide a reference for the structural design of similar bridges.
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Chen, Rong, Ping Wang, and Xian-kui Wei. "Track-Bridge Longitudinal Interaction of Continuous Welded Rails on Arch Bridge." Mathematical Problems in Engineering 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/494137.
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Taking arch bridges, including deck, half-through, and through arch bridges (short for DAB, HTAB, and TAB) as examples, mechanics analysis models of longitudinal interaction between continuously welded rails (short for CWRs) and arch bridges are established. Based on the finite element method (FEM), the longitudinal interaction calculation software of CWR on arch bridges has been developed. Focusing on an HTAB, the tension, compression, and deflection conditions are calculated and analyzed. The results show that the mechanics analysis models of three types of arch bridges can truly reflect the real state of the structure; the calculation software can be used for systematic research of the CWR on arch bridge; as for HTAB, temperature difference of arch rib has a small effect on rail tension/compression, and arch bridge can be simplified as a continuous beam for rail tension/compression additional force calculation; in calculation of deflection conditions of HTAB, it is suggested that train loads are arranged on half span and full span and take the direction of load entering bridge into account. Additionally, the deflection additional force variation of CFST basket handle arch bridge is different from that of ordinary bridge.
6
Xu, Liang, and Ya Ping Wu. "Nonlinear Stability Analysis of Qijiadu Long-Span Deck-Type CFST Arch Bridge." Advanced Materials Research 163-167 (December 2010): 1685–91. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.1685.
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With the application of the composition material-concrete-filled-steel-tube (CFST) in civil engineering, the crossing ability of arch bridge gets advanced development. Therefore, it is of interesting to study the stability of such long-span arch bridges, especially which have small width, for the bridge’s safety under long term operation. The present study focuses on studies the transverse stability of long-span arch bridges with small width. To this purpose, a deck type CFST arch-bridge in Gansu Province is adopted as an example. The arch bridge has a span of 180 m, and its width-span ratio is 1/25.7. The finite element method with a special beam element is employed to analyze the stability. The analyses are carried out for the transverse stability of the bridge during construction and under service, respectively. Furthermore, the influence of the spandrel structure and deck elastic restraints to the stability is investigated taking account of geometrical and material nonlinearity.
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Lu, Wei, Ding Zhou, and Zhi Chen. "Practical Calculation of Cable-Stayed Arch Bridge Lateral Stability." Applied Mechanics and Materials 587-589 (July 2014): 1586–92. http://dx.doi.org/10.4028/www.scientific.net/amm.587-589.1586.
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A long-span cable-stayed arch bridge is a new form of bridge structure that combines features of cable-stayed bridges with characteristics of arch bridges. In the present study, we derived a practical calculation method for the lateral destabilization critical loading of cable-stayed arch bridges during the construction process based the energy principle. The validity of the method was verified with an example. The calculation method provides a quick and efficient way to evaluate the lateral stability of a cable-stayed arch bridge and a concrete filled steel tubular arch bridge during the construction process.
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Fang, Peiyi, and Yuliang Zhou. "Research on the structural behavior of special-shaped arch bridges." Theoretical and Natural Science 5, no. 1 (May 25, 2023): 664–70. http://dx.doi.org/10.54254/2753-8818/5/20230430.
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With the social progress and the rapid development of people's economic level, people pay more and more attention to the external image of bridges, which greatly promotes the emergence and development of special-shaped arch bridges. But because of the particularity of the special-shaped arch bridge structure, its plane stress characteristics, which are different from the traditional arch bridge, become more complex. In this paper, three types of arch bridges commonly seen in special-shaped arch bridges: leaning type, inclined span type and butterfly type arch bridges are selected for a brief structural stress analysis. The results show that most of the arch structures of special-shaped arch bridges only play an auxiliary role in bearing loads, and due to the more complex stress, the finite element analysis software needs to be used to optimize the structure for many times to reach a relatively reasonable range. In addition, some arch structures are used more for aesthetic purposes than to bear loads, and their mechanical performance is basically zero.
9
Jiang, Rui Juan, Qi Ming Wu, Yi Yan Chen, Fei Cui, and Xiao Wei Yi. "A Robust Design of Suspenders in through and Half-Through Arch Bridges." Advanced Materials Research 163-167 (December 2010): 2094–100. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.2094.
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It is well-known that in modern through and half-through arch bridges the suspenders are important components since they connect the bridge deck and the arch ribs. The collapse of bridge deck or arch ribs may be induced once one or more suspenders are broken. In this paper, the traditional design way of the suspenders in through and half-through arch bridges is discussed first. Based on the discussion, a new way to design suspenders for arch bridges is then put forward. The reasonability and robustness of this new way is proved by a numerical example based on a real through arch bridge using the comprehensive commercial software ANSYS. It can be concluded from the analysis in this paper that the new way to design the suspenders for the through and half-through arch bridges can assure the safety of the bridge effectively even though one or more suspenders happen to break.
10
Kishi, Yusuke, Katsuyoshi Nozaka, and Kazuyuki Izuno. "Nonlinear Behavior of Masonry Arch Bridge Under Ground Deformation." Journal of Disaster Research 6, no. 1 (February 1, 2011): 44–50. http://dx.doi.org/10.20965/jdr.2011.p0044.
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This paper discusses simple modeling and examples of masonry arch bridge analysis considering ground deformation. Preserving historicalmasonry arch bridges is important to continuing our industrial heritage for the next generations. A single-span masonry arch bridge was analyzed using the finite element method with two meshing schemes considering material nonlinearity to define reasonable modeling for such arch bridges. Results show that analytical model meshed automatically with a commercial FEM program preprocessor considering material plasticity reasonably simulates the behavior of the detailed masonry model. The effects of deformation on bridge behavior and stress distribution in arch bridges are also discussed.
11
Rehapade, Divyani. "A Review Paper on Lithely Arch Bridge." International Journal for Research in Applied Science and Engineering Technology 10, no. 1 (January 31, 2022): 854–58. http://dx.doi.org/10.22214/ijraset.2022.39933.
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Abstract: In this we are studying modern technology of arch bridges i.e “Lithely Arch technology”. In this technology the blocks are precasted, blocks are jointed with screed concrete and lifted to a location by transporting them on site and again lifted to form arch bridge and then working towards the finishing. It also includes the study of reading the drawing, Bearing capacity, prepared all over detailed estimate and stability checks. Various IRC codes, IS codes is studied. The masonry arch is one of the oldest structural elements. Brick masonry arches have been used for hundreds of years. This technical note is an introduction to brick masonry arches. Many of the different types of brick masonry arches are discussed and a glossary of arch terms is provided. Material selection, proper construction methods, detailing and arch construction recommendations are discussed to ensure proper structural support, durability and weather resistance of the brick masonry arch. Lithely arch method is innovative, modern, economic and fastest method of construction of arch bridges. This method is invented in Maharashtra, India. Bridges constructed using this method are purely compressive in nature. This method utilizes precast units for construction of arch bridges. This method can be utilized for rehabilitation of old arch bridges in India very economically and with less time. The lithely arch is India's only Precast, Unreinforced Bridge solution and is developed on the lines of the conventional stonemason built arch bridges. Arch bridges are the most reliable and time tested solution for medium span (5m to 20m) bridges. These bridges have been standing strong for centuries and while they were initially designed for 8-10 tons of load are carrying modern vehicular load without any distress. Keywords: Lithely Arch, Wire Rope, Concrete, Spandrel Wall, Sockets, Screed, Moulds, Strip .
12
Chu, Yuhang, Rui Li, and Xiaozhang Li. "Analysis of Seismic Response of the Arch Bridge across Reservoir considering Fluid-Solid Coupling Effect." Shock and Vibration 2022 (December 26, 2022): 1–15. http://dx.doi.org/10.1155/2022/3873935.
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Most of the deep-water bridges in Chinese reservoirs are concentrated on rivers in the southwest region. The unique structural characteristics of arch bridges are more in line with the geological topography requirements of deep reservoir areas, making them the bridge type of choice for bridges in deep reservoir areas. While the southwest region is an earthquake-prone area, in order to study the safety of arch bridges across deep water in the reservoir area, it is necessary to analyze the effect of water under seismic behavior on the box section arch ring and explore the effect of arch inundation depth on the dynamic response of arch bridges in the reservoir area. In this study, the effect of fluid-solid coupling is considered, the modified Morison equation is used to calculate the hydrodynamic pressure, and the effect of arch bridge inundation depth on the dynamic response is analyzed based on the Midas/civil finite element model of the arch bridge in the Yunnan reservoir area. The results show that the seismic response of the arch bridge across the reservoir is greatly influenced by the submergence depth of the arch bridge due to the fluid-solid coupling effect, and the influence of the hydrodynamic pressure on the longitudinal moment (My) and transverse moment (Mz) of the arch bridge increases with the increase of the submergence depth. There is a threshold value of the submergence depth. When the submergence depth is less than the threshold, the effect of fluid-solid coupling is negligible, and when the submergence depth is greater than the threshold, the fluid-solid coupling effect is significant. The thresholds for different parts of the main arch ring are different. The most unfavorable water depth in different parts of the main arch ring is not necessarily the water depth when the arch ring is completely submerged. Based on this result, for reservoir arch bridges in high intensity areas, it is recommended that the inundation depth of arch bridges crossing deep water reservoirs should be h/f less than or equal to 5/8 f.
13
Xu, Jia Lin, and Yong Liang Zhang. "Test and Analysis of Dynamic Characteristics of Reinforced Concrete Arch Bridge." Applied Mechanics and Materials 599-601 (August 2014): 1081–84. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1081.
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The development and application of the reinforced concrete arch bridge has been several decades in China. However, the research on arch bridge is relatively slow in recent years, due to the limit of arch bridge’s dependence on geological conditions , the characteristics of its structure and construction technology . Especially ,many reinforced concrete arch bridges which were built after 1940s has been subjected to earthquake, flood or beyond design life. And there is lack of some corresponding researchs on assessment criteria. This paper aims to put forward some state evaluation methods and suggestions by the test and analysis of dynamic characteristics of reinforced concrete arch bridge. Keywords: reinforced concrete arch bridge; state evaluation; dynamic test; modal analysis
14
Yu, Tong-Hua. "Concrete trussed arch bridges in China." Canadian Journal of Civil Engineering 14, no. 6 (December 1, 1987): 820–27. http://dx.doi.org/10.1139/l87-120.
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In this paper, the following points are presented: the valuable advantages of the concrete trussed arch bridge; the design consideration and simplified analysis of the bridge; the level of secondary stresses induced in the ends of truss members; the application of prestress to tensile members and bending sections of trusses; and different ways of construction of the bridge.A five-span prestressed concrete trussed arch bridge named the Zhushanlu Road Bridge at Jingdezhen City, Jiangxi Province, is described as an example of medium span bridges of the type popularly adopted in Chinese highway system and the municipal construction since the late sixties. Key words: prestressed concrete, hinged truss, thrust, secondary stress, anchorage, pretensioning, precast.
15
Ma, Jun, and Yan Li. "Dynamic Response Analysis of Half-through CFST Arch Bridges Affected by Crossbeams Setting." Advanced Engineering Forum 5 (July 2012): 201–6. http://dx.doi.org/10.4028/www.scientific.net/aef.5.201.
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As one of the most important components of CFST arch bridges, the cross beams should affect the bridges’ dynamic performance and response magnificently by means of affecting these three factors mentioned above. Based on the Maocaojie Bridge, its FEM models of half-through CFST arch bridges with different settings of cross beams are built. The different seismic responses of six operating conditions are calculated with three dimensional earthquake waves input. The internal force and displacement envelope diagrams of arch ribs are extracted and analyzed in situations of in-plane moment, out-plane moment, vertical displacement and transverse displacement. It can conclude that the joint section between arch rib and bridge deck should be designed carefully because of its large displacement and internal force, and the cross beams should be optimized to safety the arch bridge dynamic response considering lateral rigidity. The conclusions may be useful to the seismic design and strengthening treatment of CFST arch bridges. To strengthen the joint section between arch rib and bridge deck or optimize the setting of cross beams will increase the ductility of half-through CFST arch bridge and decrease the damages caused by large earthquake.
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Mushthofa, Malik, Akhmad Aminullah, and Muslikh. "Cross section and geometry optimization of steel truss arch bridges based on internal forces." MATEC Web of Conferences 258 (2019): 02002. http://dx.doi.org/10.1051/matecconf/201925802002.
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The purpose of this study is to obtain the optimum geometric design and cross section member element of steel arch bridges. It is necessary because the geometric design of the steel truss arch bridges have the direct impact to the steel section used in the structures. Therefore, steel section have the impact to the economic value of the bridge design due to the structure weight. There are many important variables have to considered in the bridge design. Rise to span ratio variable is the major variable in the arch bridge geometric design. Arch bridge structures rely on the axial force capacity of the main arch, whereas shear forces and bending moments as secondary consideration. The optimization process is done by collecting the axial force, shear force and bending moment data of each steel arch bridge numeric model, and scaling its value from 0 to 1 to compare the data of every span in the same field, in order to achieve the optimum rise to span ratio. Rise to span ratio data of steel arch bridges in China and Japan used as the comparison with the result of this study, due to their brief history and rich experiences on arch bridge engineering innovation, and also have the large of amount of steel arch bridges. The results of this study give the optimum value of rise to span ratio between 1/4 to 1/7. It has good correlation with the rise to span ratio data of steel arch bridges in China and Japan i.e. 1/4 - 1/6 and 1/5 - 1/7 respectively.
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Kaafil Rehumaan, Shifana Fatima. "Comparative Study on Performance of Beam and Arch Bridge Subjected to Uniformly Distributed Load." International Journal of Architectural Engineering Technology 9 (December 10, 2022): 37–42. http://dx.doi.org/10.15377/2409-9821.2022.09.3.
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In this paper, an attempt has been made to study the behavior of beam and arch bridges subjected to static uniformly distributed loads. The target audience of this research paper is Architecture students because they would like to visualize the structural concepts for better understanding with minimal calculation. For this reason, a static load test was conducted on three types of beam bridges and on three types of arch bridges. The performance of the arch bridge is studied by changing the type of beam, and the results are compared with the beam bridge. Based on the test results, it is found that the performance of glued beam bridges is recommended for less span than arch bridges.
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Zhang, Xuesong, Ningyi Liang, Xiaohong Lu, Anbang Gu, and Jidong Shan. "Optimization Method for Solving the Reasonable Arch Axis of Long-Span CFST Arch Bridges." Advances in Civil Engineering 2019 (August 21, 2019): 1–13. http://dx.doi.org/10.1155/2019/7235656.
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With the continuous construction of 500 m concrete-filled steel-tube (CFST) arch bridges such as the Bosideng Yangtze River Bridge and the Hejiang Changjiang Highway Bridge, the deviation between the dead pressure line and the arch axis produced by extant arch axis optimization methods increases. Therefore, an arch axis optimization method for long-span CFST arch bridges with a truss section must be designed. Following the optimization of the truss arch axis, this study develops the minimum section eccentricity method that aims to optimize the arch axis of long-span CFST arch bridges. To minimize the main tube eccentricity of the truss arch, the bending moment of the main tubes is reduced by applying the main tube eccentricity method iteratively in a finite element model. Afterward, a smooth and reasonable arch axis is fitted by applying a cubic spline interpolation function in MATLAB. The entire optimization procedure is performed using the Bosideng Yangtze River Bridge as an example. Compared with that of optimal arch axis line types (e.g., parabola and catenary) and other traditional arch axes, the bending moment of main tubes optimized by the proposed method is substantially lower and more uniformly distributed along the arch axis span. The mechanical properties of the finished bridge, including its strength, stiffness, and stability, are all improved, thereby verifying the feasibility of using the proposed method to optimize the arch axis of CFST arch bridges with a truss section.
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Tan, Yonggang, and Yuanbin Yao. "Optimization of hanger arrangement in pedestrian tied arch bridge with sparse hanger system." Advances in Structural Engineering 22, no. 12 (May 19, 2019): 2594–604. http://dx.doi.org/10.1177/1369433219849842.
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The hanger arrangement has a decisive influence on the mechanical behavior of the tied arch bridge with network hanger system. Many investigations on highway or railway tied arch bridges show that the arch bridges with dense network hangers are superior to those with vertical hangers under larger live load. However, numerous dense inclined hangers lower the esthetic effect of the bridge, especially for pedestrian tied arch bridges. Consequently, the sparse inclined hanger system is recommended in the design of pedestrian tied arch bridges. However, the amount of possible schemes of the hanger arrangement grows rapidly with the number of hangers increasing beyond 10, rendering great difficulties in searching for proper schemes. In this article, a dimensionless optimization approach based on genetic algorithm is proposed in searching for hanger arrangement schemes. Numerical analysis indicates that the proposed method is effective in the optimization of pedestrian tied arch bridge with sparse inclined hanger system, and some of the feasible hanger arrangement solutions show more excellent mechanical properties.
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Zhou, Yu, Meng Li, Yingdi Shi, Shengkui Di, and Xianzeng Shi. "Damage Identification Method of Tied-Arch Bridges Based on the Equivalent Thrust-Influenced Line." Structural Control and Health Monitoring 2024 (January 9, 2024): 1–20. http://dx.doi.org/10.1155/2024/6896975.
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Early tied-arch bridges cannot satisfy the current traffic load demand due to their load grades and maintenance levels. Also, these tied-arch bridges have accumulated structural damage with increasingly prominent safety risks. In order to accurately evaluate the characteristics of tied-arch bridges’ structural-influenced lines and identify damage of their arch ribs and suspenders, two analytical solutions are derived and established in this paper for the thrust-influenced lines of parabola and catenary two-hinged arches with a tie beam. A new method and an index for identifying damage of arch ribs and suspenders of tied-arch bridges are proposed. The results of numerical simulation in this paper verified that the proposed analytical solution has good analytical accuracy in practice on those two-hinged nonflat arches. With the use of equivalent thrust-influenced line difference curvature, the effectiveness of damage identification and the verification method were verified on the tie beam, suspender, and arch rib of plane tie arch structure as well as the suspender and arch rib of tied-arch bridges in this research. Furthermore, combining with grey relation analysis, the noise immunity of the proposed index method can be verified. Also, thrust-influenced line recognition based on VMD (variational mode decomposition) is introduced, and a practical process of bridge health assessment based on the quasistatic-influenced line loading of three-axle heavy vehicles is established. Theoretical analysis and numerical verification show that the calculated error of the analytic solution of two-hinged arches with a rise-span ratio greater than 1/8 is less than 9.57%, and the error decreases with the increase of the rise-span ratio. Therefore, it can be applied to the calculation and analysis of tied-arch bridges with a rise-span ratio range between 1/4 and 1/5. With the equivalent thrust-influenced line index proposed in this paper, the damage of suspenders and arch ribs of tied-arch bridges can be accurately located. It has been found that the proposed method is more effective to identify the damage of suspenders than the damage of arch ribs does, showing good noise immunity. In summary, this research has provided theoretical support for arch bridge design and evaluation. Combining with existing bridge-monitoring methods, the new bridge damage identification method proposed in this paper has the prospect of realizing the normal health status assessment of existing tied-arch bridges.
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Rane, Prabhanjan R. "Analysis of Long Span Steel Tied Arch Bridges." International Journal for Research in Applied Science and Engineering Technology 12, no. 1 (January 31, 2024): 183–93. http://dx.doi.org/10.22214/ijraset.2024.57907.
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Abstract: Arch bridges construction has reappeared around the world thanks to the cantilever launching method, and nowadays these structures represent one of the three major types of long-span bridges, with the other two types being suspension and cablestayed bridges. The arch rib is an element mainly subjected to a large axial compression force caused by dead loads, and that’s why arch bridge structures exhibit a complex behavior during strong earthquakes. Furthermore, when a bridge is located close to a fault system, the near field effects must be considered, since the structure could experiment with large displacements. This research work aims the analysis and structural stability of a Network arch bridge – a tied-arch bridge with inclined hangers that cross each other at least twice. A comparative analysis with other type of hanger arrangements i.e. a tied-arch bridge with vertical hangers is performed. Possible analysis solutions with respect to spans, materials and carriageway width are presented and succinctly discussed. Earlier this kind of analysis was not possible due to limited processing power, but with better software and available processing power, it is possible to estimate the response of structure more accurately. Modelling using a tri dimensional finite element model of the arch bridges are described through MIDAS CIVIL Software in this research work. Two arch bridges are modelled with different arrangements of hangers – a vertical and inclined network type arrangements – under same load parameters. Comparative analysis is carried and studied in terms of fluctuations in member forces, bending moments, deflections, and behavior under seismic excitation.
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Hu, Da Lin, Kai Jiang, Qi Xin Sun, and Lin Han. "Ultimate Bearing Capacity Analysis of Long-Span Continuous Stone Arch Bridge." Applied Mechanics and Materials 71-78 (July 2011): 3800–3805. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.3800.
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In the past 50 years, many long-span continuous stone arch bridges have been built in China. Analysis of mechanical performances and load capacities of long-span continuous stone arch bridges has important significances for the safety assessment of the similar bridges. 3D elastoplastic finite element method is employed to analyze ultimate bearing capacity of a three-span arch bridge with sandstone masonry in this paper. The characteristics of structural geometric and material nonlinearities and cracking and crushing of the masonry are taken into account. Compared with single-span arch bridge, both the coaction of spandrel structure and main arch and the influence of loading arrangements on ultimate bearing capacity is analyzed. The failure characteristics of the structure under the ultimate load are also introduced. The analysis results and conclusions can be referenced for the safety assessment of similar bridges.
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Jin, Qing Ping, Xian Bao Wang, and Xue Jun Li. "Calculation Analysis of Strengthening Arch Bridge Structure Based on Release Energy Method." Applied Mechanics and Materials 71-78 (July 2011): 1732–35. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.1732.
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The arch bridges were used widely for the good performance under the pressure in China. It was very sensitive to some factors as temperature , settlement etc so that the arch bridges occurred the disease, carrying capacity reduction or even structure destruction etc.In the paper, based on the characteristics of masonry arch bridges, reinforcement method was analyzed, according to the situation of a masonry arch bridge, release energy method was applied to strengthening project. By comparing the stress and the strain before and after the strengthening project, some conclusions could be drawn that the bridge structure carrying capacity had been raised, the energy accumulated in the bridge structure was released, the structure safety margin was improved.
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Li, Zheng Ying, Peng Peng Dang, and De Jian Mu. "MR Damper Semiactive Control for Bridge under Multi-Support Seismic Excitation." Applied Mechanics and Materials 90-93 (September 2011): 1402–5. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1402.
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For vibration control of long-span arch bridges under multi-support seismic excitation, this paper presents schemes of control to seismic responses of arch bridges with Magneto-Rheological dampers(MRD). In the semi-active control system of arch bridge-MRD, Linear Quadratic Gaussian (LQG)-based Sign function control algorithm is used to command MRD，and traveling wave effects on the responses of structure are considered. The Nimu arch bridge is used as a simulation example to verify the proposed control scheme. Numerical results show that traveling wave effects have no unfavorable influence on the control to response of arch bridge.
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He, Wei, and Huai Chen. "Characteristics and Related Research of through and Half through Arch Bridges in China." Applied Mechanics and Materials 488-489 (January 2014): 509–12. http://dx.doi.org/10.4028/www.scientific.net/amm.488-489.509.
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As an important transportation infrastructure, some through and half through arch bridges were collapsed at home and abroad. And most accidents were caused by the damage of suspenders. From the structural features, through and half through arch bridges were composed of two parts-upper and lower structure. The upper part of the structure was mainly composed of arch rib, suspender, tie bar, carriageway beam and bridge deck system etc. Research at home and abroad on through and half through arch bridges mainly include: seismic performance, stability, wind vibration, construction, maintenance, suspender tension test, damage identification of the bridges, and so on.
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Dong, Xue Wen, and Qiu Yang Liu. "A Study on Dynamic Performance of Concrete Filled Steel Tube Arch Bridges." Advanced Materials Research 1065-1069 (December 2014): 926–29. http://dx.doi.org/10.4028/www.scientific.net/amr.1065-1069.926.
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With the span of CFST (Concrete Filled Steel Tube) arch bridges getting much longer, the dynamic performance of them is becoming more and more advanced. In order to evaluate the structure of CFST arch bridges in a comprehensive way, it is necessary to take the dynamic performance of this kind of bridges into consideration. Methods of doing the dynamic analysis can be divided into two kinds: one is traditional theoretical analytical method, which is only suitable for simple arch bridge models; the other is FEM (Finite Element Methods), which is able to simulate the real structure and lead to more precise results. This paper attempts to study the calculation theory of free vibration characteristic of arch bridges through theoretical analytical method, and then it will do an empirical study on the dynamic performance of a CFST arch bridge by FEM to test the conclusion of theoretical study.
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Wu, Qi Ming, Dang Qi Yang, Fei Cui, Xiao Wei Yi, and Rui Juan Jiang. "Novel Hanger Design to Improve the Robustness of Through Arch Bridges." Applied Mechanics and Materials 90-93 (September 2011): 862–68. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.862.
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Hangers in through arch bridges are important components since they suspend the bridge deck from the arch ribs. Local damage at a hanger may lead to progressive damage of various components in the arch bridge or even progressive collapse of the bridge. In this paper, the conventional design of double-hangers in through arch bridges is reviewed. Then a new approach to design the double-hangers is put forward. The suitability and robustness of this approach is then verified by a numerical simulation of a real through arch bridge. The impact effects induced by local hanger fracture on other structural members are simulated by dynamic time-history analyses. The new approach to design the hangers for through arch bridges is shown to improve the structural robustness. With the application of the new way put forward here, when one or more hangers are damaged to fail, the through arch bridge will not be endangered and will still maintain the overall load-bearing capacity during an appropriate length of time to allow necessary emergency measures to be taken, which illustrates the leading principle of structural robustness well.
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Zhang, Ke Chao, Jian Zhang Chen, Han Wan Jiang, and Hai Qiang Liu. "Research of Inservice Arch Bridge Superstructure Damage Status and Evaluation Index System." Applied Mechanics and Materials 361-363 (August 2013): 1358–61. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.1358.
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Scientific and integrated index system is a basic approach to accurately assess actual structure state of inservice arch bridge. It could provide clear evaluation guidance to assessment work of existing bridges. What is more, it is aimed to avoid or reduce erroneous and omission judgement phenomenon of bridge damage assessment by the grassroots-level maintenance workers. Based on summation of variety common damage in common arch bridges, this paper adopts AHP (analytic hierults are aimed to provide effective method and basis to long-term, persistent damage evaluaarchy process) method to establish arch bridge superstructure damage evaluation model with structure member (or component), the restion of inservice arch bridge.
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Yang, Maozhao. "Design Technology of Continuous Beam-Arch Combination Bridges." Journal of Architectural Research and Development 7, no. 2 (March 28, 2023): 6–10. http://dx.doi.org/10.26689/jard.v7i2.4751.
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In this paper, a research was conducted on the design technology of continuous beam-arch composite bridges. A brief introduction is given on the of continuous beam-arch composite bridges, its basic mechanical characteristics is analyzed, and three aspects of design technology is studied, which are rise-span ratio, stiffness ratio, and bridge deck cracking. This article acts as a reference for relevant design units in China to improve the design of continuous beam-arch combination bridges.
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Zhang, Qingqing, Tongfei Sun, Jing Wang, and Qianlong Liu. "Deflection distribution estimation of the main arch of arch bridges based on long-gauge fiber optic sensing technology." Advances in Structural Engineering 22, no. 15 (July 16, 2019): 3341–51. http://dx.doi.org/10.1177/1369433219862433.
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Deflection of the main arch of arch bridges is one of the main indices for supporting the alignment after construction and evaluating the structural performance. The existing sensing technology and analysis method for deflection monitoring have developed, but it is still difficult to monitor the deflection of the main arch of a long-span arch bridge with great height difference between measuring points. On the contrary, in recent years, with the outstanding advantages of fiber optic sensing technologies, a long-gauge fiber Bragg grating sensing technology has been used in structural health monitoring due to its characteristics, including reflecting the macro and micro information and being connected into network. For these reasons, the long-gauge fiber Bragg grating sensing technology is proposed to develop a method to monitor the deflection of the main arch of arch bridges. A curvature load method for deflection distribution estimation using strain measurements is proposed. It deduces the expression of the complex relation between the strain and the deformation on the main arch element and then separates the coupled strain on the element through the specific sensor layout. A series of simulation tests of the deck arch bridge, half-through bridge, and through arch bridge was conducted. It is concluded that the proposed method can not only be applied to these long-span arch bridges but also can identify the static and dynamic deflections of the main arch effectively.
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Kou, Chang Huan, Yan Ze Huang, Guang Yang, Shih Wei Ma, and Tsung Ta Wu. "An Investigation into the Static Mechanical Behaviors of Special-Shaped Arch Bridge." Advanced Materials Research 382 (November 2011): 289–92. http://dx.doi.org/10.4028/www.scientific.net/amr.382.289.
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Considering Taiwan’s mountainous terrain and winding roads, the special-shaped arch bridge may exhibit superior adaptability; therefore, it has a wide range of applications in the domestic construction of bridges. This paper describes the basic theory and analytical process of the special-shaped arch bridge, using case studies to illustrate the static response of the bridge under uniform dead load. Furthermore, this paper discusses the effects of the changes of the bridge’s geometric shape from the static load response. The results show that because the arrangement of the special-shaped arch bridge is distinct from that of the traditional arch bridge, the distributions of the initial and completion cable forces are complex such that obtaining regular stress responses is difficult regardless of whether the bridge is in-plane or out-of-plane. Hence, the arrangement of cable forces should be specifically considered when building an analytic model of a special-shaped arch bridge.
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Kumar, Mr Ashil S., and Ms Lekshmi Priya R. "Static Analysis on Tied Arch Bridge." International Journal for Research in Applied Science and Engineering Technology 10, no. 7 (July 31, 2022): 630–34. http://dx.doi.org/10.22214/ijraset.2022.45394.
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Abstract: The bound bridge is in the position of the bridge where the external horizontal force of the upper singing unit is carried as the lowest volume of the bridge. This removal of horizontal forces in connected areas allows for bound bridges to be created with slightly stronger foundations. Therefore, bounded bridges may be located at higher elevations or created in areas with unstable soil conditions. That the structure does not depend on the horizontal compression force for its integrity in the associated arch bridge. Combined bridges may be out of place, and may later be covered locally. The flexible reaction of a hardpressed concrete bridge under an earthquake load is investigated using a limited portion of the model in the ANSYS software package. A bridge identified as the New Kozhencherry Bridge in Kerala, India has been selected for research. The bridge is a proposed project of the Department of Public Works, Kerala. My paper mainly focus on investigate the performance of frequency influence of vehicle load in bridge.
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He, Li, and Yong Jiu Qian. "Method of Damage Evaluation of Long-Span Arch Bridge Subjected to Blast Loading." Applied Mechanics and Materials 178-181 (May 2012): 2405–11. http://dx.doi.org/10.4028/www.scientific.net/amm.178-181.2405.
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A variety of conventional weapons equipped with explosive are used to destroy the significant long-span arch bridge. Because of the special function of the weapons and the complexity of the arch bridge, the damage results with the features of uncertainty and fuzzy are assessed with fuzzy theory. Combined with the standards for technical condition evaluation of highway bridges and wartime specific requirements, the fuzzy mathematical model based on the fuzzy mathematics theory and method is established to judgment comprehensively the arch technical condition. The hirarchy fuzzy comprehensive evaluation method is applied to determine the technical state grade of the damaged arch bridge. The method of damage evaluation provides the effective reference for the emergency repairmen of the arch bridges.
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Xie, Renchao, Ming Li, and Chihao Xu. "Study on the Technical Status of Old Concrete Truss-Arch Bridge Based on Vehicle-Bridge Interaction." Advances in Civil Engineering 2022 (October 19, 2022): 1–13. http://dx.doi.org/10.1155/2022/9946957.
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With the rapid development of the country’s economy, a large number of heavy vehicles are being used due to the expansion of transportation demand and increased transportation costs. For the old concrete truss-arch bridges built in the last century, the bridges may hardly meet the modern traffic volume. With respect to old bridges in poor condition, it takes more time and resources to evaluate the technical status by field load tests, and there are some safety risks. A finite element method based on vehicle-bridge coupled vibration theory was proposed for evaluating the technical status of concrete truss-arch bridges in this paper. An old concrete truss-arch bridge in the suburbs of Suzhou, China, was selected as the research object. The field static and dynamic load tests were conducted and the results are consistent with the results of the numerical simulation based on the method proposed in this study. It can be concluded that the proposed numerical method can be widely used to assess the technical state of the old concrete truss-arch bridges in poor condition.
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Deng, Hua. "Application of BIM Technology in the Seismic Performance of “Wood Weaving” Structure of Wooden Arcade Bridges." Shock and Vibration 2022 (October 11, 2022): 1–8. http://dx.doi.org/10.1155/2022/8033059.
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The wood arch bridge has good seismic performance, and the “wood weaving” of its arch system is closely related. Wood weaving has the isolation function similar to that of rubber bearing isolation layer under earthquake, which is the key to ensuring good isolation performance of wood arch bridges. However, it is difficult to measure the seismic performance of the “wood woven” structure of the wooden arch bridge, which leads to its limited application. In order to solve this problem, building information model (BIM) technology is introduced into this field, and the application of BIM technology in the seismic performance of “wood woven” structures of wooden arch bridges needs research. First, the design principle of “wood weaving” is described, and then the seismic principle of “wood weaving” is analyzed. Finally, from the perspective of the structural strength index, the seismic performance of the wooden arch bridge “wooden woven” structure is analyzed in depth with BIM technology in order to provide some help for understanding the seismic performance of the wooden arch bridge “wooden woven” structure and promoting the effective application of wooden arch bridge.
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Trajber, D., D. Penava, F. Rinaudo, V. Sarhosis, and L. Abrahamczyk. "Construction types and typologies of existing masonry arch bridges in Croatia." IOP Conference Series: Materials Science and Engineering 1209, no. 1 (December 1, 2021): 012063. http://dx.doi.org/10.1088/1757-899x/1209/1/012063.
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Abstract Historical masonry arch bridges still form an important part of Croatian transportation network. There are approximately 680 masonry arch bridges and culverts currently being used for railways and roadways. Many of these bridges are relatively old (more than hundred years in most cases) but still in usage. Increasing vehicle load and speeds as well as deterioration due to anthropogenic and environmental influence have highlighted the need for reliable assessment of their service condition and regular maintenance. The aim of this study is to provide a review of existing masonry arch bridges in Croatia. Firstly, a historical review of bridges is given showing the time period in which they were built, indicating the materials and design principles used for their construction. Next, bridge typologies are presented as well as their detailed analysis of geometric characteristics for brickwork bridges. Finally, a short review of damages and their impact on serviceability of bridges is given. This review presents masonry arch bridges in Croatia and the need for reliable method of assessing their service condition in order to provide proper maintenance, repairing and retrofitting.
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Zhang, Yuwei. "Design Strategies for Leaning-Type Arch Bridges." Journal of World Architecture 7, no. 2 (April 25, 2023): 11–16. http://dx.doi.org/10.26689/jwa.v7i2.4752.
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This paper presents a study on the design strategy of leaning-type arch bridges. The main characteristics of leaning-type arch bridges are first introduced; Kunshan Yufeng Bridge is taken as an example to discuss different aspects of a design strategy, which includes self-system optimization, selection of beam length and bridge deck position, and other aspects. This paper can be used as a reference to further improve and develop bridge design.
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Shen, Peiwen, Yue Chen, Song Ma, and Yong Yan. "Safety Assessment Method of Concrete-Filled Steel Tubular Arch Bridge by Fuzzy Analytic Hierarchy Process." Buildings 14, no. 1 (December 25, 2023): 67. http://dx.doi.org/10.3390/buildings14010067.
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The concrete-filled steel tubular (CFST) arch bridge has achieved significant development in recent years due to its unique mechanical performance and technical advantages. However, due to the lagging theoretical research compared to engineering practice, many problems have been exposed in the existing bridges, resulting in adverse social impacts and enormous economic losses. With the increasing prominence of safety issues in CFST arch bridges, it is necessary to assess their safety condition in service. This paper establishes a safety assessment index system for CFST arch bridges using the fuzzy analytic hierarchy process (AHP) based on an exponential scale. The assessment method proposed includes the following main points: (1) Bridge safety assessment is closely related to the load-bearing capacity of components. This study proposes an assessment index that comprehensively considers both the defect conditions and the design load-bearing capacity of components for the safety assessment. (2) The exponential scale method is introduced to safety assessment for the first time, and the AHP based on an exponential scale is applied to calculate the component weights. (3) Considering the specific structural characteristics of CFST arch bridges, this study provides a detailed division of component types and calculates the component weights. By combining the component assessment indexes, a comprehensive safety assessment index system is established, and a safety assessment method for CFST arch bridges is proposed. (4) Taking the Jiantiao Bridge in Zhejiang Province as an engineering case, the load-bearing capacity of components is calculated using finite element software ANSYS 19.1. Based on the established safety assessment index system, the safety of the bridge is assessed by integrating the inspection results. (5) Software for the safety assessment of a CFST arch bridge is developed using Visual Basic, and the assessment results align well with the actual condition of the bridge.
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Lagos, Miguel, Milton Elgueta, and Mario I. Molina. "Arch and Cable Suspended Bridges." Physics Teacher 61, no. 4 (April 2023): 263–65. http://dx.doi.org/10.1119/5.0070682.
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An arch bridge is a mainly horizontal deck with an arch as its load-carrying structure. The arch works by transferring the weight and other external vertical loads into a horizontal thrust on the abutments placed at both sides. When the main load on the arch is the homogeneously distributed deck weight, and the arch is properly shaped, the arch rib is subjected to pure compression along its whole extension. Both tensile forces along the arch rib and shear forces transversal to it are absent. Bending moments vanish as well. This has made possible the use of masonry for arch bridges, which uses materials such as stone, brick, and concrete that are strong in compression but very weak to tension and shearing. In the following sections, we determine mathematically this optimal arch shape, which turns out to be a parabola. The novelty is that these well-known results are obtained using just basic algebra and trigonometry, without any mention of infinitesimal calculus, including in the demonstration of the absence of shearing forces. Subsequently, the method is extended to cable suspended bridges.
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Shen, Yadong, Jianhu Feng, Xiaohan Cheng, Xuntao Wang, and Changhao Zhang. "A Form Finding Method for Arch Bridges Using Parametric Level Set Method." Advances in Civil Engineering 2018 (November 11, 2018): 1–9. http://dx.doi.org/10.1155/2018/2198696.
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Topology optimization has developed rapidly in the past three decades; as a creative and efficient optimization technique, it has been applied in engineering fields of aerospace and mechanical. However, there are a few attempts in bridge form design. In this paper, the parametric level set method is utilized to solve the form finding of arch bridges. The optimization model for minimizing the structural compliance under the volume constraint is built. Three numerical examples of form finding of arch bridges are studied. Results show that the optimal structures which have well-distributed stress and smooth force transmission are almost identical with the actual forms of arch bridges. The optimal forms can be treated as alternatives in the preliminary design stage, and topology optimization has a bright prospect in form finding of arch bridges.
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Ma, Jun, Yang Liu, Qingfei Gao, and Kang Hou. "Investigating the Hysteretic Behavior of Concrete-Filled Steel Tube Arch by Using a Fiber Beam Element." Mathematical Problems in Engineering 2015 (2015): 1–7. http://dx.doi.org/10.1155/2015/409530.
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A fiber beam finite element that could account for the nonlinear constitutive relationship between steel and concrete was applied to investigate the hysteretic behavior of concrete filled steel tube (CFT) arch ribs of bridges. At first, the effectiveness of this fiber beam element using for nonlinear analysis was verified by comparing the analytical results with the experimental data, and then this composite element was applied to analyze the hysteretic performance of CFT arch ribs. The following hysteretic behavior of CFT arch ribs of bridges was investigated such as the hysteretic behaviors of moment-curvature of arch ribs in vertical direction of bridge and the hysteretic relationship between load and displacement of arch ribs in longitudinal and transverse direction of bridge. Finally, some parameters affecting the hysteretic behaviors of CFT arch ribs were presented by evaluating the capacity of ductility of CFT arch ribs.
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Huang, Qian, Xiaoguang Wu, Hui Wei, and Qida Chen. "Innovative Design of Novel Main and Secondary Arch Collaborative Y-Shaped Arch Bridge and Research on Shear Lag Effect of Its Unconventional Thin-Walled Steel Box Arch Ribs." Applied Sciences 12, no. 16 (August 22, 2022): 8370. http://dx.doi.org/10.3390/app12168370.
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The first main and secondary collaborative Y-shaped steel box arch bridge under construction in China is a rarely seen innovative practice among bridges already built at home and abroad, which is an attractive engineering research topic in the field of advanced bridge design and construction, and the investigation of this bridge has made a groundbreaking contribution. The structure of unconventional thin-walled steel box arch ribs is very novel, abandoning the traditional two-dimensional arch rib structure form and adopting the new structural mode of single–double combination and joint working of main and secondary arches. However, for this innovative design, many technical difficulties including innovative design details, mechanical behavior of thin-walled structures and construction methods still need to be pioneeringly explored and thoroughly researched. In this paper, the innovative design concept of unconventional thin-walled arch ribs for spatial Y-shaped steel box arch bridges is described, and a comparative analysis with the corresponding conventional single arch rib structure is carried out. Due to the limitations of the common conventional arch bridge research methods, a combined global and local finite element method is used to analyze the static and dynamic properties of the structure, and the shear lag effect of the thin-walled steel box arch ribs is studied in a pioneering and exploratory approach. In addition, the stress distribution of the bifurcated section of the arch ribs and the configuration of the diaphragm are analyzed in detail to verify the reasonableness, advantage and applicability of the innovative design. The results show that the main and secondary arch collaboration Y-shaped steel box arch bridge has reasonable structure and superior mechanical properties and has a greater value for promotion The design concept and analysis method are worthy of use as a reference for the aesthetical and mechanical design of similar spatial Y-shaped arch bridges in the future.
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Qu, Zhanhui, Zemin Han, Haoyu Tang, Jiangbo Xu, Heping Wang, and Yifan Liu. "Study on Numerical Simulation of Arch Mechanism of Bridge Pile Foundation." Buildings 14, no. 1 (January 7, 2024): 146. http://dx.doi.org/10.3390/buildings14010146.
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Bridges are situated in a complex area with geological conditions that are challenging for engineering. It has been observed that certain pile foundations of bridges have been uplifted to varying degrees by up to 309 mm. This has a significant impact on the bridge’s operation and driving safety. The causal mechanism of the bridge pile foundation arch is analyzed through a theoretical analysis and a Plaxis 3D (v.2013) finite element software simulation. The influence of the ground stress and goaf on the bridge pile foundation under different working conditions is studied. The findings indicate that the uplift of the bridge pile foundation due to an equivalent ground stress is the largest, reaching approximately 300 mm in the bridge valley area. Additionally, the uplift of the non-bridge area in the goaf is greater than that of the bridge pile foundation. These results suggest that ground stress is the primary cause of the arching of a bridge pile foundation.
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Xiong, Zhihua, Jiachen She, Zhuoxi Liang, Xulin Mou, and Yu Zhang. "Structural Health Evaluation of Arch Bridge by Field Test and Optimized BPNN Algorithm." Frattura ed Integrità Strutturale 17, no. 65 (June 22, 2023): 160–77. http://dx.doi.org/10.3221/igf-esis.65.11.
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Arch bridges play an important role in rural roads in China. Due to insufficient funds and a lack of management techniques, many rural arch bridges are in a state of disrepair, unable to meet the increasing transportation needs. Thus, it is of great significance to develop a set of rapid and economic damage identification procedures for the management and maintenance of old arch bridges. Sanliushui Bridge, located in Chenggu County, Hanzhong, is selected as a model case. Field tests and numerical simulations were carried out to identify the damage states of Sanliushui Bridge. The sum square of wavelet packet energy change rate, a damage identification index based on wavelet packet analysis method was implemented to process the measured data of the load test and the simulated data of the numerical calculation model with assumed damage. BPNN, GA-BPNN, PSO-BPNN and test data analysis are adopted to compare the measured data with the simulated data to quantitatively identify the damage degree of the selected bridge. By comparing the results of the two methods mentioned above, it is found that the proposed damage identification approach realized a precise damage identification of the selected arch bridges.
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Ye, Dan, Yijin Tong, Lijun Gan, Zhuoran Tang, and Ruijie Zhang. "Improvement in the Seismic Performance of a Super-Long-Span Concrete-Filled Steel-Tube-Arch Bridge." Buildings 13, no. 7 (July 16, 2023): 1811. http://dx.doi.org/10.3390/buildings13071811.
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The applicability of current seismic-performance-improvement technologies needs to be studied. This research took a super-long-span CFST arch bridge with a total length of 788 m as the object on which to perform a non-linear time-history analysis and a seismic-check calculation according to the seismic response, so as to reveal the seismic weak points of the arch bridge. After the completion of the bridge’s construction, we arranged and utilized the stayed buckle cables (SBCs) reasonably. The seismic performance of the super-long-span CFST arch bridge was improved through friction-pendulum bearings (FPBs) and SBCs. The research shows that FPBs can solve the problem of the insufficient shear resistance of bearings, and SBCs can address the problem whereby the compressive stress of the transverse connection of the main arch exceeds the allowable stress. Moreover, SBCs can increase the transverse stiffness of arch bridges and reduce their seismic responses. Finally, a combination of FPBs and SBCs was adopted to improve the overall seismic performance of the arch bridge and obtain the best seismic-performance-improvement effect.
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Xiang, Zhong Fu, and Yong Zeng. "Chongqing Bridge and its Combination Bridge." Applied Mechanics and Materials 147 (December 2011): 45–49. http://dx.doi.org/10.4028/www.scientific.net/amm.147.45.
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A brief introduction is given about the history and current situation of Chongqing Bridge. Several combination bridges are introduced in detail about structure characteristic and innovation: Chongqing Wushan Yangtze River Bridge--steel tube- concrete composite arch bridge; Twinning of Chongqing Yangtze River Bridge--steel-concrete composite rigid frame bridge; Chaotianmen Yangtze River Bridge --steel truss - arch composite bridge; Caiyuanba Yangtze River Bridge --Rigid Frame - Tied Arch Bridge.
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Huang, Yong, Jun Jie Wang, and Xi Yu Zheng. "The Damage in Arch Bridges during 2008 Wenchuan Earthquake." Applied Mechanics and Materials 90-93 (September 2011): 1597–601. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.1597.
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During the Wenchuan earthquake in 2008, many arch bridges in the seismic zone were damaged. The typical damage included: span collapsed, abutment and arch springing cracked, spandrel arch damaged, damage in the joint member between deck and main arch, damage out of arch plane. Some typical damage examples of the arch bridge are introduced in this paper. The causes and regular pattern features of the earthquake damage are analyzed, and the corresponding countermeasures are proposed.
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Aguilar-Jiménez, Jesús, Juan Manuel García-Guerrero, and Juan José Jorquera-Lucerga. "The Diagonal Arch Bridge, a Particular Case of Spatial Arch Bridges." Applied Sciences 11, no. 4 (February 20, 2021): 1869. http://dx.doi.org/10.3390/app11041869.
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A diagonal arch bridge (DAB) is a particular case of arch bridge where the arch is rotated about a vertical axis passing through its crown so that each springing lies on a different side of the deck. A perpendicular arch bridge (PAB) is a particular case of DAB where the arch is rotated so that the arch plan is perpendicular to the deck axis. This paper includes a table of built bridges since 1989 and outlines the historical evolution of this type of bridge. Two main trends can be distinguished—one approach is focused on structural efficiency and the other is based on making aesthetics prevail, which often leads to structurally inefficient solutions. The main geometrical parameters are identified and the effect of the angle of rotation about a vertical axis is studied. Design constraints, such as the clearance requirements, are highlighted. In addition, the main structural systems, such as out-of-plane behavior, are identified and qualitatively studied, as an orientation for designers and a first step in future studies.
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Chen, Xu Yong. "Tests before and after Reinforcement of Tujiazui Bridge." Applied Mechanics and Materials 204-208 (October 2012): 2095–99. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2095.
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This paper is aimed to verify the effects of reinforcement by tests before and after reinforcement of a two-way curved arch bridge with a clear span of 70m. Four 100kN and 180kN trucks are used for load tests of the bridge before and after reinforcement, and then the test values are compared with the calculated values. Tests before reinforcement has proved insufficient rigidity in some parts of the bridge, the design load grade is low, and the common fault in two-way curved arch bridges. The finite element numerical analysis tool ANSYS is used for finite element simulative analysis of the bridge, and the comparison of test values with calculated values shows the bridge can meet the existing design load grade after reinforcement. This paper has verified the feasibility and rationality of utilizing the physical unit of ANSYS for analysis of two-way curved arch bridges after reinforcement, and meanwhile, proved that the rigidity and design grade of bridges can be improved by reinforcement.
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Hu, Da Lin, Tian Qi Qu, Hong Bin Wang, and Long Gang Chen. "Seismic Analysis of Reinforced Concrete Rib Arch Bridge." Applied Mechanics and Materials 256-259 (December 2012): 1496–502. http://dx.doi.org/10.4028/www.scientific.net/amm.256-259.1496.
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There are few researches on seismic response of reinforced concrete rib arch bridges at present; therefore, it is necessary to analyze seismic performance of this kind of bridges. Based on the engineering background of a three-span reinforced concrete rib arch bridge, a full bridge finite element model is built to analyze the structural dynamic characteristic and seismic response of the bridge. The internal forces and displacements of each key section is compared and discussed when the bridge is excited by horizontal unidirectional ground motion or the combination of vertical and horizontal ground motion. The structural seismic response calculated with different analysis methods is compared. The research results of this study can be used as a reference for the seismic design of similar bridges.