Bibliografías temáticas / Arched truss truss

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Literatura académica sobre el tema "Arched truss truss"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 2 de febrero de 2022

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Artículos de revistas sobre el tema "Arched truss truss"

KIRSANOV, M. N. "ANALYSIS OF THE DEFLECTION OF THE ARCHED TRUSS". Structural Mechanics of Engineering Constructions and Buildings, n.º 5 (octubre de 2017): 50–55. http://dx.doi.org/10.22363/1815-5235-2017-5-50-55.

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Kirsanov, Mikhail N. "INDUCTIVE ANALYSIS OF THE DEFORMATION OF THE ARCHED TRUSS". International Journal for Computational Civil and Structural Engineering 14, n.º 1 (30 de marzo de 2018): 64–70. http://dx.doi.org/10.22337/2587-9618-2018-14-1-64-70.

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An analytical solution to the problem of the deflection of a flat arched statically determinate truss un-der the action of a uniformly distributed and concentrated load is obtained and analyzed. To obtain the depend-ence of the deflection on the number of panels, an induction method was used in two parameters — the number of panels in the crossbar and the number of panels in the supporting side trusses. All transformations and analysis are performed in the system of computer mathematics Maple. Expressions for the forces in individual rods are found. The asymptotic approximation of solutions is obtained.

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El Sayed, Ahmed Yehia, Mohamed Darwish y Khaled Nassar. "Design and Constructability of Novel Extendable Arched Steel Truss Falsework". Journal of Construction Engineering and Management 147, n.º 3 (marzo de 2021): 04020187. http://dx.doi.org/10.1061/(asce)co.1943-7862.0001989.

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Kirsanov, Mikhail, Dmitriy Tinkov y Oleh Boiko. "Analytical calculation of the combined suspension truss". MATEC Web of Conferences 265 (2019): 05025. http://dx.doi.org/10.1051/matecconf/201926505025.

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An algorithm is given for obtaining the formula for the dependence of the deflection of a regular planar truss of an arched type with a suspended lower belt on the number of panels. The cases of uniform loading of the nodes of the upper and lower belts by a vertical load are considered. To generalize a number of solutions obtained in the system of computer mathematics Maple to an arbitrary case, an induction method was applied. For this purpose, for a sequence of coefficients of the particular solutions found, a common term is determined which is a solution of the recurrence equation. The deflection was determined with the help of Mohr's integral, which depends on the forces in the rods. Forces in a statically determinate construction were performed by cutting out nodes from the solution of a system of equations written in a matrix form. The analytical dependence of displacement of the mobile support on the number of panels is found.

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Darwish, Mohamed, Ahmed Yehia Elsayed y Khaled Nassar. "Design and Constructability of a Novel Funicular Arched Steel Truss Falsework". Journal of Construction Engineering and Management 144, n.º 3 (marzo de 2018): 04018002. http://dx.doi.org/10.1061/(asce)co.1943-7862.0001449.

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Li, Jiang, Jiepeng Liu, Liang Cao y Y. Frank Chen. "Vibration Behavior and Serviceability of Arched Prestressed Concrete Truss Due to Human Activity". International Journal of Structural Stability and Dynamics 18, n.º 12 (9 de noviembre de 2018): 1850146. http://dx.doi.org/10.1142/s0219455418501468.

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The current trend toward longer spans and lighter floor systems, combined with reduced damping and new activities, have resulted in an increasing complaints on floor vibration from building owners and occupants. Heel-drop, jumping, and walking impacts, which may lead to discomfort problems in daily life, were imposed on a large-span arched prestressed concrete truss (APT) girder system studied. The natural frequencies, peak acceleration, average root-mean-square acceleration (ARMS), maximum transient vibration value (MTVV), and perception factor for the girder were obtained and checked against the existing codes and standards. The purpose of this paper is to provide researchers and engineers with a detailed evaluation on the vibration behavior of the APT girder under different human activities, with a comprehensive review on the relevant criteria and some suggestions. Lastly, the following threshold peak accelerations are suggested: 650[Formula: see text]mm/s2 for transient heel-drop impact, 1450[Formula: see text]mm/s2 for transient jumping impact, and 250[Formula: see text]mm/s2 for steady-state walking. In addition, the threshold values of 90[Formula: see text]mm/s2 and 50[Formula: see text]mm/s2 are suggested for MTVV and ARMS, respectively, under steady-state walking.

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Qiu, Dong Wei, Yan Min Wang y Xiu Zhong Chen. "Large Building Overhead Installation Control Surveying". Applied Mechanics and Materials 170-173 (mayo de 2012): 2974–78. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.2974.

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In the process of urbanization, along with a high degree of integration of the intensification of land use and urban architecture function, many large-scale large buildings have appeared which have enormous architectural space and the structure is complex. They are the city's landmarks and are the import integration of urban functions and landscape. During the construction of complex steel structure the high altitude installation need high demand to control surveying. It requires not only the surveying accuracy, precision, but also high surveying techniques on the spatial structure of three-dimensional positioning, docking, and assembly. Conventional planar and high level processing surveying mode cannot meet the construction needs. In this paper the arched surface steel roof truss high altitude installation project of China Tianjin West Railway Station is researched which has north-south length of 394 meters and east to west span 126 meters. The research aims to establish an accuracy of high three-dimensional surveying control network. This paper presents a specific implementation method of control surveying. And though data processing, accuracy evaluation and the analysis of engineering applications results, we verify the correctness of the method. This method support spatial location and geometric characteristics for arched surface of steel roof truss high attitude installation. It ensures the project successfully implemented.

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Gaydzhurov, Peter. "STUDY OF STRESS-STRAIN STATES OF A REGULAR HINGE-ROD CONSTRUCTIONS WITH KINEMATICALLY ORIENTED SHAPE CHANGE". University News. North-Caucasian Region. Technical Sciences Series, n.º 3 (septiembre de 2020): 5–12. http://dx.doi.org/10.17213/1560-3644-2020-3-5-12.

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For regular hinge-rod systems, an engineering technique for analyzing the stress-strain state is developed, taking into account the transformation of the shape of the structure by folding repeated fragments in the plane of the smallest stiffness. As a result, the original straight shape turns into an arched truss. The proposed meth-od is based on the extension of the modified Lagrange method to the problem of analyzing the stress-strain state of a spatial truss structure with kinematically directed shape change. A step-by-step adjustment of the structure geometry is used, taking into account the resulting nodal displacements. For the software implemen-tation of the proposed calculation algorithm, a macro is compiled in the APDL language embedded in the ANSYS Mechanical software package. A step-by-step procedure was tested that simulates the transformation process of the spatial farm geometry.

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Wang, Xiao Ping, Li Yu y Bo Lu. "Roof Structural Program of Main Plant for GuanDi Hydropower Station". Applied Mechanics and Materials 105-107 (septiembre de 2011): 2080–85. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.2080.

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Concrete beam and slab system is commonly applied in the main plant roof of hydropower station, which is difficult for construction and slow, having a great impact on the construction period. For the main plant roof structure (span of 30 metres)of GuanDi hydropower station in Yalong River, this paper proposes three light steel roof systems, which are arched corrugated steel roof, light gauge-steel and shell roof, and carries detailed analyses and comparisons on the force calculation, appearance, the amount of steel, site construction, anticorrosive performance and other aspects. Regarded that the light gauge-steel roof is the most suitable system for the main plant roof of hydropower station, this paper introduces the layout, arched truss design and purlin of light gauge-steel roof, providing reference for design and application of similar projects.

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Ezeokonkwo, JC, CU Nwoji, KE Ezugwu y NC Aneke. "Structural and Economic Viability of 2D/3D Finite Element Analysis of Conical Arched Roof Truss". Nigerian Journal of Technology 33, n.º 3 (30 de junio de 2014): 258. http://dx.doi.org/10.4314/njt.v33i3.3.

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Tesis sobre el tema "Arched truss truss"

Laurendeau, Matthew P. "Live-Load Testing and Finite-Element Analysis of a Steel Cantilever Deck Arched Pratt Truss Bridge for the Long-Term Bridge Performance Program". DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/904.

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The Long Term Bridge Performance (LTBP) program is an organization within the Federal Highway Administration that inspects, tests, analyzes, and observes, for an extended period of time, a variety of bridge types throughout the United States. Part of the program includes periodic testing of select bridges of a span of 20 years. The Kettle River Bridge located outside of Sandstone, Minnesota was selected for study due to its unique design. The Kettle River Bridge is a historical steel cantilevered deck arched Pratt truss bridge. The bridge was instrumented with 151 strain gauges on various floor and truss members along with eight displacement gauges strategically placed along the truss. All gauges were read simultaneously as the bridge underwent non-destructive live loading. The recorded gauge readings were analyzed to determine bridge behavior and then used in the assistance of calibrating a working finite-element model. After a working model was verified the distribution factors for the interior and exterior floor stringers were determined. By using the controlling distribution factor, a load rating for the bridge was determined for both inventory and operating. The distribution factors and load ratings determined using the working finite-element model were then compared to the AAHSTO LRFD specifications.

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Andrej, Patrik. "Zastřešení víceúčelového sportovního objektu". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-409846.

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The subject of the master thesis is the design and assessment of the supporting roof steel structure on the building, which will be used for various sports events in Znojmo. The building has a rectangular floor plan with dimensions of 50 x 60 m. The height at the top is 15 m. The trusses are articulated on concrete columns. Structure stability ensures system of bracings. The work contains a static calculation of the main load-bearing elements, including the relevant joints. The roof and cladding consist of sandwich panels.

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Badár, Tomáš. "Výstavní pavilon". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392108.

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The aim of the work is to design steel structure exhibition pavilion. The building is situated in Brno. The construction is processed in two options. The option A is designed in variant of arched space frame. The internal ground plan dimensions of the building are 42 x 72 meters. Space frame is hinged to the structure of columns. Height in the top of the ship is 16,834 metres. The option B is designed in variant arched truss. The internal ground plan dimensions of the building are 42 x 70 meters. Arched truss is hinged to the structure of columns. Height in the top of the ship is 18,334 metres. The spatial rigidity of the structure is ensured by cross braces. Roof cladding and walls will be made using sandwich panels of KINGSPAN. The main material will be used steel S235.

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Matějková, Pavla. "Hangár". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392113.

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Diploma thesis contains a design of steel load-bearing structure of a hangar placed in Brno-Medlánky. The ground dimensions are 40.0×44.0 m, the height of the building is 10.0 m. Two preliminary variants of the design solution were processed; main difference is the shape of the truss girder. Both variants were assessed for a combination of seventeen load cases. The comparison of the variants led to the selection of the final variant, which was assessed in detail. The girder truss in this variant is an arched truss, the height of the truss is 1.5 m, the individual elements are made of square hollow sections. A detailed static calculation was performed including the calculation of joints, drawing documentation and technical report. The main construction material is S235JR steel.

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Bystrianská, Kateřina. "Ocelová konstrukce autosalonu". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392250.

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The diploma thesis deals with the design and assessment of the steel construction of the car showroom in Jihlava. The ground dimensions of the structure are 40,0 x 52,0 m and the height at the highest point is 13,14 m. The supporting structure consists of a truss girder consisting of a set of arches, outer columns and an inner column with a strut. This is a freebase system, the distance of the bindings is 4.0 m. In the framework of the work is elaborated the comparison of two variants, more suitable includes the static calculation of the main supporting parts, including the joints and details. The main construction material is steel, grade S 355.

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Morcinková, Kateřina. "Volnočasové centrum s ubytováním". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240049.

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New-building of leisure center. The building contains two stories, without basement. Structural system of building is created by Porotherm and supplemented by reinforced concrete columns. There are large entrance hall, canteen, lecture and exercise rooms in the ground level. Accommodation rooms, private apartment, laundry room and building manager’s apartment are situated in the second level of building. Roofing of the two-storey building is created by arched truss. The single-storey building is roofed by green roof.

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Bém, Miroslav. "Víceúčelová sportovní hala". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227528.

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The aim of the master’s thesis is design and assessment of multipurpose sport hall structure. located in Moravské Budějovice. The hall has rectangular ground plan and it is 40 m wide and 48 long. The proposal is developed in four variants according to ČSN EN. Structure is composed of rolling sections and tubes. The main bearing components are arched trusses. In both gable walls are designed steel truss columns. Structure has been accomplished by Scia Engineer 14 and hand computation

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Trávníček, Jakub. "Lávka pro pěší". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227456.

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The goal of this diploma work is a proposal and structural survey of wooden bridge for pedestrians and cyclists over the water area. The bridge is situated into the area of town Jihlava. A clingy slat wood and steel construction elements have been used for construction proposal. Bridge span is being used as 50 metres. Generally two variations of bridge constructions have been elaborated, variation A and variation B, of which variation A has been elaborated in more details.

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Vrátný, Martin. "Víceúčelová sportovní hala". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227188.

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This thesis describes the design of a multipurpose sports hall in Pribram. The sports hall is situated in the town of Pribram II. The aim of this work is to propose bearing structure with dimensions 49 x 28 halls has a background in the shape of L in the level of ± 0.000. Maximum height of the hall is 14 meters.Structure of the hall consists of arched trusses in 7 m grid supported by steel columns. This is a column support system. The building is based on the footings. Ensure stability bracing. Perimeter and roof cladding consists of sandwich panels.

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Kulichová, Jana. "Letištní hala". Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2015. http://www.nusl.cz/ntk/nusl-227583.

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The construction of the concourse is designed from steel.Construction was designed in 2 variants.The construction of the hall is radially curved in plan view with a circular sector on the longitudinal side.Roof structure consists of eight trusses at an axial distance of 9 m.Tracks are arched truss designed as a parallel.Trusses are designed to span 40m.Maximum ground clearance hall at the top is 14 meters.Letištní hala byla řešena v programu Scia Engineer 2014 a součástí je i výkresová dokumentace.

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Libros sobre el tema "Arched truss truss"

Permanent International Association of Road Congresses. Committee on Road Bridges. Type de structures retenues pour les nouveaux ponts =: Type of structures selected for new bridges. Paris, France: PIARC - World Road Association, 1996.

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Office, General Accounting. Social Security reform: Information on the Archer-Shaw proposal : report to the Ranking Minority Member, Subcommittee on Social Security, Committee on Ways and Means, House of Representatives. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): United States General Accounting Office, 2000.

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W, Roeder C., ed. Fatigue cracking of riveted steel tied arch and truss bridges. [Olympia]: Washington State Dept. of Transportation, 1998.

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Office, General Accounting. Social Security reform: Information on the Archer-Shaw proposal : report to the ranking minority member, Subcommittee on Social Security, Committee on Ways and Means, House of Representatives. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 2000.

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Capítulos de libros sobre el tema "Arched truss truss"

Sayed, Ahmed Yehia Abdel Aziz El, Mohamed Darwish, Khaled Nassar, Omar Elkady y Moustafa Hussein. "Testing and strengthening of funicular arched steel truss false-work". En Advances in Engineering Materials, Structures and Systems: Innovations, Mechanics and Applications, 2364–69. CRC Press, 2019. http://dx.doi.org/10.1201/9780429426506-407.

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James, Henry. "VIII". En The American. Oxford University Press, 2009. http://dx.doi.org/10.1093/owc/9780199555208.003.0010.

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‘LOOK here—I want to know about your sister,’ the elder abruptly began. His visitor arched fine eyebrows. ‘Now that I think of it you’ve never yet made her the subject of a question.’ ‘Well, I guess I know why.’ ‘If it’s because you don’t trust...

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Jensen, Jens y David L. Groep. "Security and Trust in a Global Research Infrastructure". En IT Policy and Ethics, 1523–50. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2919-6.ch068.

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Modern science increasingly depends on international collaborations. Large instruments are expensive and have to be funded by several countries, and they generate very large volumes of data that must be archived and analysed. Scientific research infrastructures, e-Infrastructures, or cyber infrastructures support these collaborations and many others. In this chapter we look at the issue of trust for such infrastructures, particularly when scaling up from a small one. This growth can be “natural,” as more researchers are added, but can also be dramatic if whole new communities are added, possibly with different requirements. Our focus is on authentication, since for most realistic infrastructures, authentication is the foundation upon which further security is built. Our aim has been to focus on real-life experiences and examples, distilling them into practical advice.

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Jensen, Jens y David L. Groep. "Security and Trust in a Global Research Infrastructure". En Handbook of Research on Computational Science and Engineering, 539–66. IGI Global, 2012. http://dx.doi.org/10.4018/978-1-61350-116-0.ch022.

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Actas de conferencias sobre el tema "Arched truss truss"

Laurendeau, Matt, Paul J. Barr, Arek Higgs y Marvin W. Halling. "Live-Load Testing of a Steel Cantilevered Deck Arched Pratt Truss Bridge". En Structures Congress 2015. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479117.115.

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Fenu, Luigi y Giuseppe C. Marano. "Steel Truss-Type Arches Optimization Under Multi-Load Cases". En IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.1338.

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Structural optimization of arches under multi-load cases is faced. For this aim, truss-type arches are to be considered because, under different load cases, bending effects unavoidably occur in single-rib arches shaped under one load case only. An effective procedure for simultaneous topology, shape and size optimization of truss-arches under multi-load cases is proposed. For this aim, shape, size and topology variables are assembled in a unique set of variables that are simultaneously optimised by the optimization algorithm. For given Pratt-type brace pattern, different topologies have been considered by varying the node number, whereas Cubic Rational Bézier curves have been used to shape the arch chords. Optimum diameter and thickness of the circular hollow section members was also obtained. Optimization was performed in MATLAB environment, by applying a modified Differential Evolution (DE) algorithm implemented with a Constraint Domination Selection (CDS) criterion. For each design variable vector, a FEM analysis of the resulting model has been carried out by SAP2000 to evaluate the objective function value (volume) feasibility of each design variable vector in terms of structural performance. Optimal solutions have been found and compared, providing useful suggestions to consider as guidelines in truss-arche design.

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Dues, Joseph Francis. "Applying Statics to Community Examples". En ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-14593.

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Most statics courses begin with a considerable amount of abstract discussion of forces and vectors. Since the mechanical engineering technology department's goal is to focus on practical, concrete instruction methods, the faculty has been working to expose students to more exercises that involve the practical application of statics to daily life. For the statics curriculum, a laboratory was developed that investigates the use of trusses in the surrounding community. Each truss is examined to determine its primary purpose, its type and any unique design features. Small groups discuss each example qualitatively (quantitative analysis of the forces in the truss is not performed) and then the whole class meets to compare the results. The trusses include the following: • Sherman Minton Bridge - Double arch truss. • K&I Railroad Bridge - Parker and Warren through trusses with a swing section and a cantilevered road deck parallel with the tracks. • Pedestrian Bridge - Pratt truss. • Pennsylvania Railroad Bridge - Combination of Parker through trusses over shipping lanes with Warren deck trusses. • Clark Memorial Bridge - Cantilever truss. Since each truss serves a similar transportation purpose, each truss is compared to the others to determine why its particular design was chosen. This paper describes each example and the effects the exercise had on student learning. This includes discussion of: increased interest by relating statics to daily experiences, experience with reverse engineering, practice identifying members in tension and compression, comparison of a standard truss with a cantilever truss bridge and recognition of changing design practices as technology changes over the years. Lastly is a description of the assessment, evaluation and planned improvements to the truss laboratory.

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Shea, Kristina, Jonathan Cagan y Steven J. Fenves. "A Shape Annealing Approach to Optimal Truss Design With Dynamic Grouping of Members". En ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0050.

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Abstract A shape annealing approach to truss topology design considering the tradeoff between the mass of a structure and multiple members of the same size, called a class of members, is presented. The problem of optimal grouping involves finding a structural design with an optimal number of classes and the optimal sizes of those classes; cross-sectional area is considered as the measure of size in this paper. Multiple members of a uniform cross-sectional area is advantageous when considering the cost of purchasing and fabricating materials to build a structure. The shape annealing method (Reddy and Cagan 1994) is used as an approach to solve this problem by incorporating a method for dynamic grouping of members into classes and adding a constraint for the number of allowable classes. This method is demonstrated on arch and truss problems. As well, results from an imposed symmetry constraint for the truss problem will be shown.

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Basheer, Hanaa S., Carole Bassil y Bilal Chebaro. "Toward using data trust model in VANETs". En 2015 International Conference on Applied Research in Computer Science and Engineering (ICAR). IEEE, 2015. http://dx.doi.org/10.1109/arcse.2015.7338136.

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Servais, Vincent y Christophe Peigneux. "Small Footbridges: 2 Contexts, 2 Responses". En Footbridge 2022 (Madrid): Creating Experience. Madrid, Spain: Asociación Española de Ingeniería Estructural, 2021. http://dx.doi.org/10.24904/footbridge2022.218.

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This paper presents the design of two small footbridges in two different sites and economical contexts. The first footbridge, located in an urban site, is an arch made of Ultra-High-Performance Fibre-Reinforced Concrete (UHPFRC). The design technique combines the use of a contemporary material with the reappropriation of ancestral methods. The second footbridge, located in a remarkable natural site and made of weathering steel, presents both a tie-arch and truss structure. This minimalist conception leads to a “low- cost” structure.

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Chuanping, Liu, Tianluan Liu y Jian Jia. "Study on bearing structure and joint seismic resistance of large span non-landing arch on high-speed railway station". En IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.2295.

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The main entrance of Chongqing West Railway Station adopts the non-landing compound arch with a span of 108m. In this paper, the nonlinear finite element theory is applied to analyze the bearing capacity and seismic ductility of the compound arch joints. Low frequency cyclic loading tests are performed on the 1/5 scale model. Based on the calculation and test results, a double beam structure and a section of steel truss are placed in the arch joints to bear the force of the arch. Moreover, the buckling-restrained brace (BRB) is placed in the lower part of the arch that enables most force directly transmit to the foundation of the arch. Unlike BRB’s common use as an inter-column support, it now acts as a buckling constraint support in the large earthquake. For instance, it can be yielded before the frame column to improve earthquake resistance. The research results indicate that the compound arch joint structure successfully accomplishes the seismic design goals of strong joints with weak component. Moreover, the study provides the theoretical basis and design reference for the application of BRB and long-span arch structures in high-speed railway station.

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Mo, Gaute, Fernando Ibáñez Climent, Altea Cámara Aguilera, Göran Werme, Henrik Hermansson y Johan Eriksson. "Väster Pedestrian and Cycle Bridge: Connecting the Town Centre with a New Developed Area". En Footbridge 2022 (Madrid): Creating Experience. Madrid, Spain: Asociación Española de Ingeniería Estructural, 2021. http://dx.doi.org/10.24904/footbridge2022.187.

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This pedestrian and cycle bridge spans the river in Eskilsuna connecting the historic, industrial area of Munktellstaden with the town centre, forming part of a rehabilitation of the area. The bridge was completed in 2016 on behalf of the City of Eskilstuna. The final design was chosen from three alternatives: the Landmark, the Industrial and the Transparent. All three options proposed were of steel, and all designs had to provide a 4.5m free deck width, maintain an unobstructed navigation channel of 5.0m wide by 3.35m high and a maximum slope of 5%. The Landmark proposal was an asymmetric cable stayed bridge with a 27m high, A- shaped, inclined steel pylon located on one bank with two planes of cables towards the steel deck and one plane of cables towards the back anchorage. The Industrial proposal was a variable height optimized truss , inclined outwards to provide a sensation of openness to the bridge user. The design finally chosen by the client was the Transparent. This bridge, unlike the other two, has two supports within the river that allows for a very slender deck. There is a central, low arch spanning 32m and an overall length of 65m. The arches are formed from two inclined box sections which are slightly curved on plan towards the supports. The railing is made up of a series of thin, steel plates connected via a stainless-steel handrail. The overall effect of transparency thus allows for a largely unobstructed view along the river. Due to the slender deck section a detailed dynamic analysis was carried out to check for possible pedestrian-induced vibrations.

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Wan, Ling, Allan Ross Magee, Øyvind Hellan, Watn Arnstein, Kok Keng Ang y Chien Ming Wang. "Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions". En ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/omae2017-61802.

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In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulations are carried out to investigate the dynamic responses of the floating bridge under different conditions.

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Prozniak, Steven, Safia Moniz y Jayden Mellsop. "Alternative design for the replacement Cambridge Pipe Bridge". En IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2021. http://dx.doi.org/10.2749/christchurch.2021.0014.

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The new Cambridge Pipe Bridge crosses the Waikato River just south of the historic Gaslight Theatre in Cambridge, NZ. The original pipe bridge was a three span truss bridge with a triangular cross section built from steel circular hollow sections and was constructed circa the early 1970s.Waipa District Council is in the midst of a Wastewater Treatment Plant upgrade including new, larger diameter pipework which was proposed to cross the original bridge. As part of the project, strengthening of the existing bridge was designed to accommodate the increased pipe diameter.Eastbridge and Holmes Consulting developed an alternative tender submission for the main contractor for the works, Fulton Hogan. The alternative design is a new network arch bridge that provides cost savings relative to the original strengthening scheme, a reduction in safety and environmental risks during construction, reduced maintenance costs, and increased seismic resilience for this critical piece of infrastructure.

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Informes sobre el tema "Arched truss truss"

Demchyna, Bohdan y Yaroslav Shydlovskyi. Recommendations for Designing Wooden Arches on Metal-toothed Plates. Intellectual Archive, marzo de 2021. http://dx.doi.org/10.32370/ia_2021_03_18.

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This paper presents the findings of the pilot studies and recommendations for designing of two-hinged wooden arches. The prototype models of wooden arches with the span of 6mand the rise of 1m were designed. The models had a rectangular cross-section of 180x40mm and a T-section of 180x40mm with a plywood plate with the thickness of 6 mm and the width of 500mm. The main objective of the T-section was to ensure the stability of the arch. Each arch was composed of six segments –boards joined by clamping plates. The bowstring truss including two inclined tie bars enables carrying asymmetric loads and provides in-plane stability of the arch. A methodology for laboratory testing of the prototype models of wooden arches subjected to different types of loads was developed. Two prototypes of wooden arches were tested with rectangular cross-sections and two T-section ones subjected to the loading across the span, and two prototypes subjected to the half-span loading. In total, eight arches were tested. Deflections of arches, cross-section deformations and arch thrust force were recorded. The arches were tested until failure. The results of testing revealed insufficient stability of the arches with rectangular cross-section in the horizontal plane. For the arches with T-section the whole arch rib was damaged, the in-plane stability was ensured by the T-section. The collapsing force of the T-section arch was about 1.3 times greater than the collapsing force of the rectangular section arches.

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Wang, Li-Jun y Zheng Yu. COMPARISON OF NEW AND OLD STEEL STRUCTURE CODES FOR DESIGN OF LONG-SPAN ARCH TRUSS STRUCTURE IN CHINA. The Hong Kong Institute of Steel Construction, diciembre de 2018. http://dx.doi.org/10.18057/icass2018.p.120.

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