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Artykuły w czasopismach na temat „Structural frames”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 1 sierpnia 2024

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1

Javed, Ali, Chaitanya Krishna, Khawaja Ali, Muhammad Faheem Ud Din Afzal, Armin Mehrabi, and Kimiro Meguro. "Micro-Scale Experimental Approach for the Seismic Performance Evaluation of RC Frames with Improper Lap Splices." Infrastructures 8, no. 3 (March 15, 2023): 56. http://dx.doi.org/10.3390/infrastructures8030056.

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Reinforced concrete (RC) frames are an integral part of modern construction as they resist both gravity and lateral loads in beams and columns. However, the construction methodologies of RC frames are vulnerable to non-engineering defects, particularly in developing countries. The most common non-engineering defect occurs due to improper lap splice, which can compromise the structural integrity. This research demonstrates an easy, low-cost, and verifiable experimental technique incorporating micro-concrete to evaluate the seismic performance of a completely engineered RC frame with the defect

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2

Coffield, Amy, and Hojjat ADELI. "IRREGULAR STEEL BUILDING STRUCTURES SUBJECTED TO BLAST LOADING." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 22, no. 1 (December 18, 2015): 17–25. http://dx.doi.org/10.3846/13923730.2015.1073172.

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In seismic design, structural irregularity has been found to have a significant influence on structural response. The impact of structural irregularity on the global response of steel frame structures subjected to blast loading has not been examined. In the paper, six seismically designed steel framed structures are considered: moment resisting frames (MRF), concentrically braced frames (CBF) and eccentrically braced frames (EBF) each with geometric irregularity in the plan and with a geometric irregularity in the elevation. The blast loads are assumed to be unconfined, free air burst detonate

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3

Pakizeh, Mohammad Rezaeian, Abdul Kadir Marsono, and Masine M. Tap. "Structural System of Safe House against Tornado and Earthquakes." Key Engineering Materials 594-595 (December 2013): 449–54. http://dx.doi.org/10.4028/www.scientific.net/kem.594-595.449.

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Every year earthquakes, tornadoes and other extreme windstorm cause fatalities or even kill people, devastate and millions of dollars worth of property. The likelihood that a tornado will strike building is a matter of probability. The study describes the analysis and design, the engineering process the new type of tornado safe room (Fig. 1) according to the FEMA guidance. It also evaluates the effects of in-fill frames and the linear response of reinforced concrete braced frames and comparison with frames with shear wall. The main conclusion drawn from this study is to elaborate that the maso

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4

Soetanto, R., J. Glass, A. R. J. Dainty, and A. D. F. Price. "Structural frame selection: case studies of hybrid concrete frames." Building Research & Information 35, no. 2 (March 20, 2007): 206–19. http://dx.doi.org/10.1080/09613210600809029.

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Mo, Y. L., and S. F. Perng. "Behavior of Framed Shearwalls Made of Corrugated Steel under Lateral Load Reversals." Advances in Structural Engineering 3, no. 3 (July 2000): 255–62. http://dx.doi.org/10.1260/1369433001502184.

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Reinforced concrete buildings with shearwalls are very efficient to resist earthquake disturbances. In general, reinforced concrete frames are governed by flexure and low-rise shearwalls are governed by shear. If a structure includes both frames and shearwalls, it is generally governed by shearwalls. However, the ductility of ordinary reinforced concrete framed shearwalls is very limited. The experiments on framed shearwalls made of corrugated steel was recently reported. It was found that the ductility of framed shearwalls can be greatly improved if the thickness of the corrugated steel wall

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6

Park, Seon-Chee, Won-Kee Hong, Sunkuk Kim, and Xiangyu Wang. "Mathematical Model of Hybrid Precast Gravity Frames for Smart Construction and Engineering." Mathematical Problems in Engineering 2014 (2014): 1–14. http://dx.doi.org/10.1155/2014/916951.

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The structural stability, constructability, economic feasibility, environmental-friendliness, and energy efficiency of hybrid composite frame systems have been demonstrated by practical application and research. A hybrid composite frame system combines the economy of precast concrete structures with the constructability of steel frame structures, including erection speed. Novel composite frames will ultimately maximize the efficiency of structural design and facilitate construction. This paper presents hybrid precast frames, which are precast composite frames based on a simple connection betwe

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7

Kumar, Puneet, and Gaurav Srivastava. "Numerical modeling of structural frames with infills subjected to thermal exposure." Journal of Structural Fire Engineering 8, no. 3 (September 11, 2017): 218–37. http://dx.doi.org/10.1108/jsfe-05-2017-0031.

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PurposeReinforced concrete structural frames with masonry infills (infill-frames) are commonly used for construction worldwide. While the behavior of such frames has been studied extensively in the context of earthquake loading, studies related to their fire performance are limited. Therefore, this study aims to characterize the behavior of infill-frames under fire exposure by presenting a state-of-the-art literature review of the same.Design/methodology/approachBoth experimental and computational studies have been included with a special emphasis on numerical modeling (simplified as well as a

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8

Dhinakaran, S., and S. Muthukumar. "A Review on Infilled frame Structure with respective of various Interface Materials." E3S Web of Conferences 387 (2023): 03001. http://dx.doi.org/10.1051/e3sconf/202338703001.

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During major earthquakes, existing buildings have collapsed or suffered serious damage, resulting in number of losses, severe injuries, and deaths. Based on literature, the influence of this work reviewed the effects of interface with different materials and also to find how infilled frames behave in framed structure. This study's primary goal is to strengthen RC-framed structures and increase the ductility of infilled frames by using interface materials. The research offers a full range and points relevant to ductile parameters for more results in the field of infilled frames using interface

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9

Oh, Sang Hoon, and Hong Sik Ryu. "Seismic Performance of Steel Frames for Sustainable Structural System." Applied Mechanics and Materials 204-208 (October 2012): 2705–12. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.2705.

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A test on a full-scale model of a three-spans and two-story steel moment frame with dampers and releasable slab was conducted. The details of the test frames, test instruments, set-up procedures, and test procedures were presented. The column and beam were connected by dampers that could initiate the plastic deformation during cyclic loading before damage occurred in the beam and column. The precast concrete slab was designed to be releasable and for saving story height. The primary objective of this test was to verify structural performance and constructability of a full-scale sustainable ste

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10

Dawe, J. L., A. B. Schriver, and C. Sofocleous. "Masonry infilled steel frames subjected to dynamic load." Canadian Journal of Civil Engineering 16, no. 6 (December 1, 1989): 877–85. http://dx.doi.org/10.1139/l89-130.

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Experimentally determined dynamic responses of ten scale models of masonry infilled steel frames were compared with the results of three simple analytical models. Effects investigated included stiffening and strengthening contribution of the masonry infill, degradation of the system, motion intensity, frame stiffness, and rotational joint rigidity at slab-to-column intersections. Tests on one-third scale models, subjected to sinusoidal motions, revealed that masonry infill markedly increases the dynamic strength and stiffness of the system. At weak-to-moderate motions (below 0.5 g), models exh

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11

Kim, Yeon Su, Sung Hyuk Park, Rag Gyo Jeong, and Tae Kon Lim. "Structural Safety Evaluations of Bogie Frames for Rubber-Tired AGT Vehichles." Key Engineering Materials 321-323 (October 2006): 1491–94. http://dx.doi.org/10.4028/www.scientific.net/kem.321-323.1491.

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This study was aimed at evaluating the structural safety of the new bogie frames for Korean-standardized rubber-tired AGT vehicles. The guidance frame and the rotation frame were designed according to Korean-standardized specifications for rubber-tired AGT vehicles, and their stresses were analyzed by using the finite element method. Based on the results of the analysis, dynamic stresses were measured while the train was running under various conditions in the test track. Analytical and experimental results verified the structural safety of the new bogie frames.

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12

Riad, Jennifer. "Curriculum Management in Higher Education: An Analysis Using the Four Frames Model." Curriculum and Teaching 38, no. 2 (November 1, 2023): 37–52. http://dx.doi.org/10.7459/ct/38.2.04.

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This research explores curriculum management in higher education using Bolman and Deal’s Four Frames Model. The study focuses on a private Southern California university’s curriculum management process, examining it through the structural, human resources, political, and symbolic frames. The structural frame emphasizes role clarity and formal processes, while the human resources frame highlights relationships and individual well-being. The political frame addresses conflicts and power dynamics, emphasizing checks and balances. Finally, the symbolic frame emphasizes the meaning and purpose of c

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13

Savin, Sergey. "Robustness of reinforced concrete structural systems under accidental actions." E3S Web of Conferences 533 (2024): 02002. http://dx.doi.org/10.1051/e3sconf/202453302002.

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The purpose of this study was to create computational models and criteria for assessing the robustness of reinforced concrete frames of multi-storey buildings in case of stability failure of their elements under accidental actions accounting for the mode of loading and energy dissipation. Experimental studies of deformation and fracture of reinforced concrete frames under an accidental impact allowed to identify, depending on the design solutions, two characteristic failure mechanisms: due to the loss of cross-sectional strength for frames of the first and second types with the slenderness of

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14

Yoon, Sung Cheol, Jeong Guk Kim, Kwang Sun Baik, Byeong Choon Goo, and Kang Youn Choe. "A Study on the Fracture Test in Railroad Truck." Key Engineering Materials 488-489 (September 2011): 210–13. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.210.

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The truck that is used as running equipment for freight car support is a core structural part that supports the load of the car body and that greatly influences the safety of freights and vehicles, as well as their running performance. The running equipment is composed of truck frames, wheels and wheel axles, independent suspensions, and brakes. Among these components, the truck frame supporting the load of the vehicles and freights may be the most important one. This study was carried out to analyze the structure of truck frames and to determine whether they are safe when the maximum vertical

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15

Juni Indriani and Johannes Tarigan. "Analysis of Earthquake-Resistant Portal Frame Structures with Ordinary Moment Frames (OMF), Intermediate Moment Frames (IMF), and Special Moment Frames (SMF) based on SNI 1726:2019." International Journal of Architecture and Urbanism 7, no. 1 (March 31, 2023): 43–59. http://dx.doi.org/10.32734/ijau.v7i1.11687.

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Since the 19th century, portal frames have been used to build industrial buildings because the development process is fast, economical, and efficient. This research aims to look at the cross-section of structural elements in BS 5950-1:2000 spans of 15 m and 40 m using SNI 1726:2019 with modal analysis, including horizontal deflection and stress ratio, using LRFD and ASD methods. Then, the structure was revised to be safe against earthquakes researched in three zones, including low (OMF), medium (IMF), and high (SMF) earthquakes. The results of this research show that the horizontal deflection'

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16

Tasligedik, A. S., S. Pampanin, and A. Palermo. "Damage states and cyclic behaviour of drywalls infilled within RC frames." Bulletin of the New Zealand Society for Earthquake Engineering 45, no. 2 (June 30, 2012): 84–94. http://dx.doi.org/10.5459/bnzsee.45.2.84-94.

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Drywalls are the typical infill or partitions used in new structures. They are usually located within structural frames and/or between upper and lower floor slabs in buildings. Due to the materials used in their construction, unlike masonry blocks, they can be considered as light non-structural infill/partition walls. These types of walls are especially popular in New Zealand and the USA. In spite of their popularity, little is known about their in-plane cyclic behaviour when infilled within a structural frame. The cause of this lack of knowledge can be attributed to the typical assumption tha

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17

Soleimani, Reza, Horr Khosravi, and Hamed Hamidi. "Substitute Frame and adapted Fish-Bone model: Two simplified frames representative of RC moment resisting frames." Engineering Structures 185 (April 2019): 68–89. http://dx.doi.org/10.1016/j.engstruct.2019.01.127.

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18

Yoon, Sung Cheol. "A Study on the Fatigue Test of Truck Materials for Railway Vehicles." Key Engineering Materials 627 (September 2014): 405–8. http://dx.doi.org/10.4028/www.scientific.net/kem.627.405.

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The truck that is used as running equipment for freight car support is a core structural part that supports the load of the car body and that greatly influences the safety of freights and vehicles, as well as their running performance. The running equipment is composed of truck frames, wheels and wheel axles, independent suspensions, and brakes. Among these components, the truck frame supporting the load of the vehicles and freights may be the most important one. This study was carried out to analyze the structure of truck frames and to determine whether they are safe when the maximum vertical

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19

Mayencourt, Paul, John Ochsendorf, and Caitlin Mueller. "Shaping Indeterminate Frames." Journal of the International Association for Shell and Spatial Structures 62, no. 3 (September 1, 2021): 172–84. http://dx.doi.org/10.20898/j.iass.2021.011.

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The large impact of building structures on the environment must be reduced to meet the global targets fixed by the Intergovernmental Panel on Climate Change. Standard building structures with constant prismatic cross-section have material inefficiencies of around 66% (and up to 75% in some cases) that need to be addressed. Structural shaping, a subfield of shape optimization, offers a pathway to reduce the impact of building materials on the environment. Shaping statically determinate structures such as simply supported beams is relatively straightforward, but offers few design options compare

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20

Dawe, J. L., C. K. Seah, and Y. Liu. "A computer model for predicting infilled frame behaviour." Canadian Journal of Civil Engineering 28, no. 1 (February 1, 2001): 133–48. http://dx.doi.org/10.1139/l00-083.

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A computer model is developed for the structural analysis of masonry infilled frames. Structural interaction of the panel and its peripheral frame is considered. Various failure criteria are incorporated into the model and special elements are developed to account for masonry failure by cracking and crushing as well as to account for the complex interaction of frame and panel. Comparison of analytical findings with the results of 31 laboratory tests on steel and reinforced concrete infilled frames showed favourable correlation and verification of the computer model.Key words: masonry, infill,

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21

Amrapali Kasabe and Vaibhav Shelar. "Pushover analysis of building using soft story at different levels." World Journal of Advanced Engineering Technology and Sciences 9, no. 1 (June 30, 2023): 203–10. http://dx.doi.org/10.30574/wjaets.2023.9.1.0160.

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In India the enormous loss of life and property perceived in the last couple of decades, attributable to failure of structures instigated by earthquakes. Responsiveness is now being given to the assessment of the sufficiency of strength in framed RCC structures to resist solid ground motions. The seismic reaction of RCC building frame in terms of performance point and the earthquake forces on Reinforced building frame with the help of pushover analysis is carried out in this project. In this method of analysis a model of the building is exposed to a lateral load. Pushover analysis can afford a

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22

Lee, Ho-Haeng, Ki-Ho Kim, Seunghyun Son, Kwangheon Park, and Sunkuk Kim. "TIME REDUCTION EFFECTS OF STEEL CONNECTED PRECAST CONCRETE COMPONENTS FOR HEAVILY LOADED LONG-SPAN BUILDINGS." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 26, no. 2 (February 7, 2020): 160–74. http://dx.doi.org/10.3846/jcem.2020.11673.

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The characteristics of large logistics buildings are their long spans and the ability to take heavy loads. Usually, PC components are used for their frames to ensure quick construction. However, the erection of most pin jointed PC structures increases the time and the cost incurred for ensuring structural stability and construction safety. To solve this problem, “smart” frames have been developed, which have tapered steel joints at both ends of the PC components. A smart frame with the moment frame concept not only assures structural stability and construction safety, but it also simplifies an

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23

Kianmehr, Alireza. "Effect of the Bracing System on the Probability of Collapse of Steel Structures under Maximum Credible Earthquake." Shock and Vibration 2021 (October 18, 2021): 1–16. http://dx.doi.org/10.1155/2021/2323758.

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Simple bracing frames can be divided into two types in terms of concentric or eccentric. Concentric bracing frames are frames that intersect with other structural members at one point in the structure along the bracing members. Otherwise, the braced frame will be eccentric. It is said empirically that due to this type of shaping, eccentric bracing frames exhibit more ductile behavior and concentric bracing frames exhibit more stiff behavior. This behavioral difference caused this study to be numerically computing for five frames, including unique concentric and eccentric bracing frames of 5 an

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24

Fukumoto, Y., T. Takaku, T. Aoki, and K. A. S. Susantha. "Innovative Use of Profiled Steel Plates for Seismic Structural Performance." Advances in Structural Engineering 8, no. 3 (July 2005): 247–57. http://dx.doi.org/10.1260/1369433054349051.

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This paper presents the innovative use of hot-rolled thickness-tapered mill products, longitudinally profiled (LP) plates, for the seismic performance of bridge bents of single and portal framed piers. The study involves the inelastic cyclic testing and numerical analysis of tested beam-columns and portal frames in order to evaluate the effects of tapering ratios of LP plates, penetration of yielding, and number of locally buckled panels on their structural ductility. A structural design method is proposed for the portal frames having LP panels under cyclic loadings.

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25

Lakusic, Stjepan. "Structural behavior of single bay two-story basalt fiber reinforced concrete frame." Journal of the Croatian Association of Civil Engineers 74, no. 12 (January 2023): 1085–92. http://dx.doi.org/10.14256/jce.3550.2022.

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This study focuses on structural design, which is a primary aspect of civil engineering. Investigating the behavior of reinforced concrete (RC) frame systems subjected to lateral loading and estimating the damage state of a structure still remain challenging tasks in civil engineering. Reinforced concrete is currently used in a majority of constructions and Conventional buildings remain vulnerable to seismic earthquakes. The aim of this research is to identify how well RC frames with basalt and steel fibers perform under cyclic loading. Steel and basalt fibers are chopped to a size of 2.5 cm.

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26

Barclay, Abigail, Nicolai Tidemand Johansen, Frederik Grønbæk Tidemand, Lise Arleth, and Martin Cramer Pedersen. "Global fitting of multiple data frames from SEC–SAXS to investigate the structure of next-generation nanodiscs." Acta Crystallographica Section D Structural Biology 78, no. 4 (March 11, 2022): 483–93. http://dx.doi.org/10.1107/s2059798322001838.

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The combination of online size-exclusion chromatography and small-angle X-ray scattering (SEC–SAXS) is rapidly becoming a key technique for structural investigations of elaborate biophysical samples in solution. Here, a novel model-refinement strategy centred around the technique is outlined and its utility is demonstrated by analysing data series from several SEC–SAXS experiments on phospholipid bilayer nanodiscs. Using this method, a single model was globally refined against many frames from the same data series, thereby capturing the frame-to-frame tendencies of the irradiated sample. These

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27

YILMAZ, Mehmet Fatih. "The Effect of Different Braced Configurations on the Nonlinear Seismic Behavior of Steel Structure." Civil Engineering Beyond Limits 1, no. 1 (December 30, 2019): 22–28. http://dx.doi.org/10.36937/cebel.2020.001.005.

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Improvements in construction technologies have allowed steel structural elements to become more frequently used today in order to enable different architectural designs and to meet structural performance more effectively and efficiently. Structural steel has been used for more than a hundred years and has been tested under real earthquakes, which provide the basis of many earthquake-resistant steel construction standards. The major advantage of steel construction material is that it allows for large plastic deformations. Structural deformations vary depending on the deformation capacity of the

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Song, Baoxi, Dongsheng Du, Weiwei Li, Shuguang Wang, Yue Wang, and Decheng Feng. "Analytical Investigation of the Differences between Cast-In-Situ and Precast Beam-Column Connections under Seismic Actions." Applied Sciences 10, no. 22 (November 22, 2020): 8280. http://dx.doi.org/10.3390/app10228280.

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At present, the engineering designers generally design and analyze the precast structural models according to the equivalent cast-in-situ principle, and have a vague understanding of non-identical problems. However, these issues cannot be ignored, especially for high-intensity areas. This paper considers the differences of the hysteretic relationship between two typical precast joints and cast-in-situ (RC) joints, and researches the influence of these differences on the seismic response of frame structures. For the monolithic precast joint, the force mechanism was analyzed based on its assembl

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29

Jayaraj K, Aiswarya, and Anila S. "Shape Optimisation of Grooves in Grooved Gusset Plate Damper used in X-Braced Frame." Journal of Structural Technology 9, no. 2 (May 22, 2024): 1–7. http://dx.doi.org/10.46610/jost.2024.v09i02.001.

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The X-braced frame represents a specialized variation of concentric-braced frames. It can be used as a resistance towards the lateral load acting on the structural system. X-braced frames generally exhibit lower flexibility when compared to eccentrically braced and moment frames, which is often perceived as a drawback of this structural system. To address this limitation, energy dissipation devices can be integrated into the system with X-bracings to absorb the plastic action and safeguard other structural elements, such as columns, beams and connections from earthquake forces. Specifically, X

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Kanagasundaram, Subramaniam, and Bhushan L. Karihaloo. "Maximum Strength Design of Structural Frames." Journal of Structural Engineering 111, no. 6 (June 1985): 1267–87. http://dx.doi.org/10.1061/(asce)0733-9445(1985)111:6(1267).

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Nafday, Avinash M., Ross B. Corotis, and Jared L. Cohort. "Failure Mode Identification for Structural Frames." Journal of Structural Engineering 113, no. 7 (July 1987): 1415–32. http://dx.doi.org/10.1061/(asce)0733-9445(1987)113:7(1415).

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Chan, Alice Z. Y., Martin S. Copenhaver, Sivaram K. Narayan, Logan Stokols, and Allison Theobold. "On structural decompositions of finite frames." Advances in Computational Mathematics 42, no. 3 (October 30, 2015): 721–56. http://dx.doi.org/10.1007/s10444-015-9440-1.

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Karihaloo, B. L., and S. Kanagasundaram. "Minimum-weight design of structural frames." Computers & Structures 31, no. 5 (January 1989): 647–55. http://dx.doi.org/10.1016/0045-7949(89)90198-3.

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Urruzola, Javier, and Iñaki Garmendia. "Improved FEM Natural Frequency Calculation for Structural Frames by Local Correction Procedure." Buildings 14, no. 5 (April 23, 2024): 1195. http://dx.doi.org/10.3390/buildings14051195.

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The accurate calculation of natural frequencies is important for vibration and earthquake analyses of structural frames. For this purpose, it is necessary to discretize each beam or column of the frame into one or more smaller elements. The required number of elements per member increases when the frame’s modal shapes have wavelengths similar to the beam lengths. This paper presents a method that reduces the number of elements needed for a precise calculation. This is achieved by implementing a straightforward local correction to the kinetic and elastic energy of certain elements, resulting in

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Ivanchenko, Gryhoriy, Galyna Getun, Iryna Bezklubenko, and Andriy Solomin. "Features of design and calculations of complex reinforced concrete frames of buildings." Strength of Materials and Theory of Structures, no. 110 (June 26, 2023): 108–17. http://dx.doi.org/10.32347/2410-2547.2023.110.108-117.

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The article considers and systematizes the load-bearing structural systems of buildings with complex space-planning configurations, taking into account design solutions, structural loading and stress states. The features of the perception of loads and their rational distribution between the structural elements of frame buildings with complex space-planning solutions are analyzed. The main structural schemes of complex frames, schemes of their deformations and plots of moments under the influence of vertical and horizontal loads are introduced. The paper reflects the modern practice of prelimin

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Jain, A. K., R. G. Redwood, and Feng Lu. "Seismic response of concentrically braced dual steel frames." Canadian Journal of Civil Engineering 20, no. 4 (August 1, 1993): 672–87. http://dx.doi.org/10.1139/l93-084.

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Concentrically braced steel frames are one of the most commonly used structural systems because of their structural efficiency, simplicity to analyze and design, and ease of construction and repair. Canadian design codes provide specifications for their design under seismic loading based on the large amount of knowledge related to their seismic response accumulated over the past two decades. This paper examines the impact of a dual system with a moment resisting frame acting in parallel with the concentrically braced frame. Four different frames were designed in accordance with the National Bu

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Hamburger, Ronald O., and John D. Meyer. "The Performance of Steel-Frame Buildings with Infill Masonry Walls in the 1906 San Francisco Earthquake." Earthquake Spectra 22, no. 2_suppl (April 2006): 43–67. http://dx.doi.org/10.1193/1.2185656.

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Following the great 1906 San Francisco earthquake and fire, engineers recognized the superior performance of buildings with complete vertical load–carrying steel frames and infill masonry walls. These buildings were noteworthy in their ability to survive both the ground shaking and fire, many remaining in service today. Observation of this superior performance led many California structural engineers to believe that steel frames were the best structural system for resisting earthquake damage, in turn, leading to a proliferation of steel-frame construction in California cities. Not until the 19

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Shendkar, Mangeshkumar R., Denise-Penelope N. Kontoni, Ercan Işık, Sasankasekhar Mandal, Pabitra Ranjan Maiti, and Ehsan Harirchian. "Influence of Masonry Infill on Seismic Design Factors of Reinforced-Concrete Buildings." Shock and Vibration 2022 (February 27, 2022): 1–15. http://dx.doi.org/10.1155/2022/5521162.

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Infill walls are the most common separator panels in typical reinforced-concrete (RC) frame structures. It is crucial to investigate the influence of the infill walls on the earthquake behavior of RC frames. The load resistance of infill materials was often not taken into account in the designing phase, whereas the infill walls have significant contributions to the structural behavior under lateral and vertical loadings. A three-dimensional 4-story RC building is designed, and in order to make a realistic model, different infill walls configurations were taken into account with the openings in

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Strelkova, Mariia D., Ksenia I. Strelets, Victor Z. Velichkin, and Marina V. Petrochenko. "The application efficiency of precast monolithic frame systems in civil engineering." Vestnik MGSU, no. 11 (November 2021): 1493–507. http://dx.doi.org/10.22227/1997-0935.2021.11.1493-1507.

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Introduction. The partial replacement of cast-in-situ concrete with precast concrete in the residential construction sector allows to reduce construction time and cost, increase labour productivity and cut CO2 emissions. Combinations of prefabricated and monolithic elements in precast monolithic frames are presented; they encompass 6 different structural options of precast monolithic frames and 2 types of monolithic frames. The co-authors compare production costs and integrated labor intensity for all frame design options, construction periods per 1,000 m3 of a residential building for various

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Tunc, Gokhan, Mohammed Moatasem Othman, and Halit Cenan Mertol. "Finite Element Analysis of Frames with Reinforced Concrete Encased Steel Composite Columns." Buildings 12, no. 3 (March 18, 2022): 375. http://dx.doi.org/10.3390/buildings12030375.

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Structural frame systems that consists of concrete-encased-steel-embedded composite columns and reinforced concrete beams are typically used in mid-rise to tall buildings. In order to understand their overall structural behavior, a total of 12 frame models with high and low ductility features were constructed and analyzed using LS-DYNA software. Two of these models were validated using the results of previously tested frames. The remaining 10 models were studied to predict the behavior of frames with varying concrete strengths, reinforcement configurations, and structural steel sections under

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Kodur, V. K. R., M. A. Erki, and J. H. P. Quenneville. "Seismic design and analysis of masonry-infilled frames." Canadian Journal of Civil Engineering 22, no. 3 (June 1, 1995): 576–87. http://dx.doi.org/10.1139/l95-066.

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A simple analytical procedure, which can be used by practicing engineers, for the seismic design of masonry-infilled frames is presented. The analysis procedure, based on the experimental and analytical studies reported in the literature, accounts for the effect of infills in all three stages, namely, in computing seismic loading, in predicting response of the infilled frame, and in determining the strength of the infilled frame. Seismic loading is computed using the dynamic properties of the structure rather than arbitrary empirical relationships as recommended in design codes. Recommendation

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Wang, Zhen, Lihong Yao, Yongguang Shi, Dongxia Zhao, and Tianyu Chen. "Optimizing the Performance of Window Frames: A Comprehensive Review of Materials in China." Applied Sciences 14, no. 14 (July 12, 2024): 6091. http://dx.doi.org/10.3390/app14146091.

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As the construction industry places increasing emphasis on environmental conservation and sustainability, this trend has spurred profound research into the optimization of door and window performance. One of the critical components of windows is their frames. Over the past several decades, the design of window frames has undergone significant innovations, ranging from introducing new materials to novel design concepts. The performance of window frames is typically influenced by materials, structural design, and the surrounding environment. Consequently, this paper analyzes the common window fr

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Lyu, Naesung, and Kazuhiro Saitou. "Decomposition-Based Assembly Synthesis of Space Frame Structures Using Joint Library." Journal of Mechanical Design 128, no. 1 (November 25, 2004): 57–65. http://dx.doi.org/10.1115/1.1909203.

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This paper presents a method for identifying the optimal designs of components and joints in the space frame body structures of passenger vehicles considering structural characteristics, manufacturability, and assembleability. Dissimilar to our previous work based on graph decomposition, the problem is posed as a simultaneous determination of the locations and types of joints in a structure and the cross sections of the joined structural frames, selected from a predefined joint library. The joint library is a set of joint designs containing the geometry of the feasible joints at each potential

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Shi, Yunyu, Haisheng Yang, Ming Gong, Xiang Liu, and Yongxiang Xia. "A Fast and Robust Key Frame Extraction Method for Video Copyright Protection." Journal of Electrical and Computer Engineering 2017 (2017): 1–7. http://dx.doi.org/10.1155/2017/1231794.

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The paper proposes a key frame extraction method for video copyright protection. The fast and robust method is based on frame difference with low level features, including color feature and structure feature. A two-stage method is used to extract accurate key frames to cover the content for the whole video sequence. Firstly, an alternative sequence is got based on color characteristic difference between adjacent frames from original sequence. Secondly, by analyzing structural characteristic difference between adjacent frames from the alternative sequence, the final key frame sequence is obtain

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Carr, A. J., and P. J. Moss. "Impact between buildings during earthquakes." Bulletin of the New Zealand Society for Earthquake Engineering 27, no. 2 (June 30, 1994): 107–13. http://dx.doi.org/10.5459/bnzsee.27.2.107-113.

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A numerical study of the parameters affecting the impact between adjacent buildings subjected to seismic excitation has been carried out in an endeavour to quantify the relative importance of the structural parameters. A two-dimensional inelastic dynamic analysis program was used to model various combinations of adjacent framed structures subjected to ground accelerograms and where the frames are assumed to be separated by distances sufficiently small as to permit contact. Collisions were modelled using special contact elements which will transmit forces when the specified gap has been c

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Nurchasanah, Yenny, Muhammad Ujianto, and Abdul Rochman. "Diagonal reinforcement as strengthening to increase the stiffness and strength of concrete frame." MATEC Web of Conferences 195 (2018): 02033. http://dx.doi.org/10.1051/matecconf/201819502033.

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Two test objects of concrete frame behavior against lateral loading were performed by applying structural analysis with the wall as diagonal reinforcement in modeling. The results of the structural analysis indicated that concrete frames with walls have better performance than concrete frames without walls. Twelve objects consisting of the frame without the wall, frame with the wall, and frames with a group of steel and bamboo as diagonal reinforcement at brick walls and concrete panel walls were tested at the laboratory with monotonic lateral forces that work parallel to the wall as the illus

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Nwosu, D. I., and VKR Kodur. "Behaviour of steel frames under fire conditions." Canadian Journal of Civil Engineering 26, no. 2 (April 1, 1999): 156–67. http://dx.doi.org/10.1139/l98-056.

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A state-of-the-art review of the behaviour of steel frame structures in fire is presented. Results from different studies indicate that the behaviour of a complete structure is different from that of a single structural member under fire conditions from the point of view of fire resistance. Earlier studies also show that analysis and design of steel structures against fire based on their overall behaviour could lead to a reduction or the elimination of applied fire protection to certain structural members. The effects of continuity, restraint conditions, and load ratio on the fire resistance o

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Bao, Yanhong, Bowen Chen, and Lei Xu. "Analysis of Concrete-Filled Steel Tube Reinforced Concrete Column-Steel Reinforced Concrete Beam Plane Frame Structure Subjected to Fire." Advances in Civil Engineering 2021 (April 7, 2021): 1–12. http://dx.doi.org/10.1155/2021/6620030.

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The ABAQUS finite-element analysis platform was used to understand the mechanical behavior of concrete-filled steel tube reinforced concrete (CFSTRC) columns and steel reinforced concrete (SRC) beam plane frames under fire conditions. Thermal parameters and mechanical constitutive model of steel and concrete materials were reasonably selected, the correct boundary conditions were chosen, and a numerical model for the thermal mechanical coupling of CFSTRC columns and SRC beam plane frame structure was established. The finite-element model was verified from related experimental test results. The

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Hong, Sung Gul, Namhee K. Hong, and Sun Young Lee. "Hysteretic Behavior of Korean Traditional Wooden Frames." Advanced Materials Research 133-134 (October 2010): 703–8. http://dx.doi.org/10.4028/www.scientific.net/amr.133-134.703.

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The objective of this paper is to provide basic information on structural behavior of Korea traditional wooden frames under earthquake loading. One of prototype wooden frames for this study was chosen from a designated national treasure in Korea. A series of experimental work were prepared to investigate the behavior and hysteresis characteristics of traditional wooden frames under cyclic lateral loading. Three test specimens of a full scale were performed for cyclic hysteretic behaviors based on one static test specimen as a pilot test. The experimental observation showed stiffness degradatio

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Susanti, Lilya, and Ming Wijaya. "Eccentricity effect on the cyclic response of braced frame type-V." Civil and Environmental Science 005, no. 01 (April 1, 2022): 089–95. http://dx.doi.org/10.21776/ub.civense.2022.00501.9.

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Eccentricity on the braced frames can sometimes not be avoided to facilitate some structural considerations, such as openings. V-type braced frames are among the most widely used bracing types because of their satisfying performance. The present study investigated the effect of eccentricity as 15 cm, and 25 cm on the reinforced concrete braced frames of 80 cm x 100 cm in dimension compared to V-type of Concentric Braced Frame (CBF). Results indicated that a frame with 15 cm of eccentricity has almost similar stress but higher strain compared to the CBF while the frame with 25 cm of eccentricit

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