Bibliographies thématiques / LOAD-RESISTING SYSTEM

Littérature scientifique sur le sujet « LOAD-RESISTING SYSTEM »

Auteur : Grafiati
Publié le 11 septembre 2023

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Articles de revues sur le sujet "LOAD-RESISTING SYSTEM"

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Hashemi, Ashkan, Pouyan Zarnani, Reza Masoudnia et Pierre Quenneville. « Seismic resilient lateral load resisting system for timber structures ». Construction and Building Materials 149 (septembre 2017) : 432–43. http://dx.doi.org/10.1016/j.conbuildmat.2017.05.112.

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Kumar N, Sharath. « Study on Dynamic analysis of Diagrid and Outrigger Structures Subjected to Seismic and Wind Load ». International Journal for Research in Applied Science and Engineering Technology 9, no VII (30 juillet 2021) : 2813–28. http://dx.doi.org/10.22214/ijraset.2021.36975.

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A Comparative study of G+30 story regular, diagrid, outrigger structure is presented. A square shaped floor plan of 18 m × 18m size was considered. ETABS 2016 was used in modeling and analysis of structural members. All structural members were designed as per IS 456:2000, load combinations such as dead load, live load, earthquake and wind loads were considered for analysis and design of the structure. Later Regular, Diagrid and outrigger structural systems were compared; the key results like Base shear, story displacement and story drift are obtained. It is found that diagrid system is efficient in resisting seismic loads and outrigger system is found efficient in resisting wind loads.
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Ria Mathews, Mobi, Jerin M. George, Binu M. Issac et Deepa Davis. « A Study on the Seismic Performance of Hexagrid System with Different Patterns ». Applied Mechanics and Materials 857 (novembre 2016) : 30–35. http://dx.doi.org/10.4028/www.scientific.net/amm.857.30.

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Multi‐storied building construction is increasing rapidly throughout the world. Tall buildings more effectively utilize land compared to low rise building. As the height of building increases the importance of lateral load resisting system becomes more relevant than gravity load resisting structural system. Many structural systems are recently introduced to improve the structural performance of tall buildings. Hexagrid system is one among them. Hexagrid system consists of multiple hexagonal grids at the exterior perimeter of the building. It resists both lateral loads and gravity loads by axial stress of their members. The members simply act in tension or compression and show no bending which reduces the need of steel. The paper presents the comparison of different patterns of hexagrid system.
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Fruchter, Renate, Helmut Krawinkler et Kincho H. Law. « Qualitative modeling and analysis of lateral load resistance in frames ». Artificial Intelligence for Engineering Design, Analysis and Manufacturing 7, no 4 (novembre 1993) : 239–56. http://dx.doi.org/10.1017/s0890060400000342.

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This paper discusses a work in progress in the development of computer tools for qualitative modeling analysis and evaluation of conceptual structural designs. In the conceptual design stage the description of a structure is incomplete and imprecise, and does not permit the use of traditional numerical analysis tools. We describe a prototype system, QLRS, for qualitative evaluation of lateral load resistance in frames. The primary goal of the evaluation of structural response is to identify undesirable structural behavior. In QLRS, the evaluation process consists of three basic tasks. (1) identification of the story and structure models comprising the lateral load resisting system. We term this task structural system interpretation. (2) Qualitative analysis of the story and structure models, and approximate evaluation of the story drifts. We term this task structural behavior interpretation. (3) Assessment of the performance of the lateral load resisting system, in which the results of the structural system interpretation and the structural behavior interpretation are compared against the requirements for complete load path and relative story drift. Currently, QLRS is able to reason about load path discontinuities and soft-story behavior problems in 2-D moment resisting frames.
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Kiani, Yasaman Memarzadeh, Seyed Hossein Hosseini Lavassani et Afshin Meshkat-Dini. « Seismic assessment of nature-inspired hexagrid lateral load-resisting system ». Earthquake Engineering and Engineering Vibration 20, no 3 (juillet 2021) : 661–72. http://dx.doi.org/10.1007/s11803-021-2045-4.

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Charleson, A. W. « Vertical lateral load resisting elements for low to medium rise buildings ». Bulletin of the New Zealand Society for Earthquake Engineering 26, no 3 (30 septembre 1993) : 356–66. http://dx.doi.org/10.5459/bnzsee.26.3.356-366.

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This paper describes the development of a computer program for architects to provide guidance on wind and earthquake vertical lateral load resisting structure. The program, akin to an expert system, is suitable for designing low to medium-rise buildings in New Zealand at a preliminary design stage. Examples of design guides, providing more general lateral load resisting structural information for commonly used structural systems and materials, appropriate to a preliminary design stage, are also presented. Application of the program to the seismic design of a four storey reinforced concrete building is discussed.
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Pokharel, Tilak, Helen Goldsworthy et Emad Gad. « Low Damage Moment Resisting Connection Using Blind Bolts ». Key Engineering Materials 763 (février 2018) : 189–96. http://dx.doi.org/10.4028/www.scientific.net/kem.763.189.

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Concrete Filled Steel Tubes (CFSTs) are being used as columns in moment resisting frames in many parts of the world. Because of their aesthetic appearance, favourable ductility and large load bearing capacity, they are popular with architects and engineers. The use of CFSTs is limited in some countries (like Australia) due to the problems and cost associated with the connection of steel beams to the closed column section, unlike open H-shaped columns where ordinary structural bolts can be used. In this paper, a structural system is proposed which uses moment resisting frames as the lateral load resisting system. This system eliminates the use of welds at the site, which is the most common method, although expensive, which is used to achieve a moment resisting connections. The proposed system uses double T-stub connections to connect universal beams on opposite sides of the CFST column, and headed anchored blind bolts are used to connect those T-stubs to the column. This system provides sufficient stiffness and strength to be used in low to mid-rise buildings in low to moderate seismic regions. The proposed system uses a capacity design method to limit the load and non-recoverable damage in the connection (especially in the anchorage). One of the components in the connection, the web of the bottom T-stub, is designed as a fuse to create a low damage system for very rare earthquakes.
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Jaiswal, Rishav, et Ankit Mahajan. « Comparative analysis of building with shear wall & ; diagrid structure ». IOP Conference Series : Earth and Environmental Science 1110, no 1 (1 février 2023) : 012033. http://dx.doi.org/10.1088/1755-1315/1110/1/012033.

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Abstract The rapid growth of urban population, the lack of spaces in the cities and the high cost of land have already forced the developers to focus on the high-rise buildings. As the height of the building increases, the lateral load resistant system become more important than gravity load resistant system. That’s why it is important to define lateral load resistant system in high rise buildings. So the lateral load resistant systems such as shear wall and diagrid are introduced since they are better in terms of cost, aesthetic and performance. However, the diagrid structural system has become more popular these days due to its efficiency and aesthetic look provided by the unique geometric configurations of the system. In this study, a comparative analysis has been done on the buildings with different lateral load resisting systems. Five different building model of G+9 story building has been modeled with shear wall and diagrid structure to compare their performance. The design is analysed for seismic zone V and medium soil condition as per IS 1893:2016 using ETABS software. The building is kept the same except for the lateral load resisting system. From the patterns of the results, it was concluded that building models with the combination of shear wall and diagrid module has better performance in term of the maximum story displacement, story stiffness, story drift, base shear, and time period.
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Altouhami, Rasheed, David Yeoh, Lovein Soon Hong, Hassan Ali et Ashraf Radwan. « The Affectivity of Various Wind Condition and Shear Wall Opening in Multi-Story Building on Displacement by Changing Shear Wall Location and its Configuration ». Advanced Engineering Forum 30 (novembre 2018) : 71–79. http://dx.doi.org/10.4028/www.scientific.net/aef.30.71.

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Shear wall system is used as one of the most lateral load resisting systems in mulit-story building. Shear wall is quite effective in resisting wind and seismic load in medium-rise and high-rise building. Shear wall provided high stiffness and strength, which can be used to resist large lateral as well as vertical load, making the performance of the building beneficial in various wind load conditions. This study has been focused on the displacement of the different lateral load resisting system for high-rise buildings under various wind load conditions. In this paper, a study was carried out by changing the locations of shear wall radically to determine the structural configuration of a multistory building accordantly. This study has been focused on the effect of addition of shear wall at different location and configuration in buildings without shear wall as well as with shear wall. Besides that, from the software results, the behavior of the shear wall with and without opening was able to observed by obtaining the lateral displacement when acted by 10kN point load at the top left of the wall. The accuracy of the software was able to verify by comparing the result obtained from ETABS and SAP2000 and it was found that the percentage difference between values obtained from that two software is below 20 percent. The maximum lateral displacement at 40m/s and 50m/s is 1.8 and 2.8 times bigger than maximum lateral displacement at 30m/s respectively. The lateral displacement of the shear wall increases as the opening size increases.
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Tumialan, J. Gustavo, Stan W. Zagajeski, Nestore Galati et Matthew R. Sherman. « Evaluation of the Lateral Load-Resisting System of a Stadium Structure ». Journal of Performance of Constructed Facilities 26, no 4 (août 2012) : 364–70. http://dx.doi.org/10.1061/(asce)cf.1943-5509.0000217.

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Thèses sur le sujet "LOAD-RESISTING SYSTEM"

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Smith, Edward Jerome. « Preliminary design of a lateral load resisting system for a multi- use high-rise building ». Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03302010-020200/.

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Fatima, Tabassum. « Optimisation of lateral load-resisting systems in composite high-rise buildings ». Thesis, Queensland University of Technology, 2014. https://eprints.qut.edu.au/67563/2/Tabassum_Fatima_Thesis.pdf.

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This research is carried out by using finite element modelling of building prototypes with three different layouts (rectangular, octagonal and L-shaped) for three different heights (98.0 m, 147.0 m and 199.5 m) for the optimization of lateral load-resisting systems in composite high-rise buildings. Variations of lateral bracings (different number and varied placement along model height of belt-truss and outrigger floors) with RCC (reinforced cement concrete) core wall are used in composite high-rise building models. Prototypes of composite buildings are analysed for dynamic wind and seismic loads. The effects on serviceability (deflection and frequency) of models are studied and conclusions are deduced.
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CHAUHAN, NITISH. « ANALYSIS OF DIFFERENT TYPES OF REINFORCED CONCRETE TUBULAR STRUCTURES ». Thesis, 2017. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15826.

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An efficient and economical tall building cannot be designed without a thorough understanding of the significant factors affecting the selection of the structural system and knowledge of how the structural system will interrelate with architectural, mechanical and electrical aspects. Usually two to three different structural systems will be selected for comparison. 1.2 Tall Buildings as Lateral Load Resisting Systems As socio-economic trends demanded taller buildings, structural engineers were pressed to provide lateral load resisting systems that would minimize, (or at least optimize), cost of structural and reinforcing steel for buildings of greater height to width aspect ratios and varying vertical profiles. Initially, rigid frame construction was used extensively in tall buildings, but as aspect ratio increased, stiffness rather than strength criteria begins to control design and tall buildings pay a “premium for wind “, i.e. that amount of structural steel required beyond that required to sustain gravity loading. In order to control building response to lateral loading structural engineers may utilize one or more of the following: 1. Increase stiffness of the system 2. Increase building weight 3. Increase density of the structure with fill-ins 4. Use efficient shapes
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Chapitres de livres sur le sujet "LOAD-RESISTING SYSTEM"

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Dhar, Sreya, et Kaustubh Dasgupta. « Parametric Study of Lateral Load-Resisting System in Reinforced Concrete Frame Building ». Dans Proceedings of the International Symposium on Engineering under Uncertainty : Safety Assessment and Management (ISEUSAM - 2012), 757–66. India : Springer India, 2012. http://dx.doi.org/10.1007/978-81-322-0757-3_49.

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Singh, Harpreet, et Aditya Kumar Tiwary. « Comparative Analysis of High-Rise Structure with Diagrid Lateral Load-Resisting System with Composite Members and Base Isolation ». Dans Lecture Notes in Civil Engineering, 177–90. Singapore : Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1886-7_15.

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Charney, Finley A. « Combinations of Lateral Load-Resisting Systems ». Dans Seismic Loads, 45–51. Reston, VA : American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784413524.ch08.

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Shukle, Anup Anilkumar, et Y. K. Guruprasad. « Efficacy of Lateral Load Resisting Systems in High-Rise Structures ». Dans Lecture Notes in Civil Engineering, 223–31. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6389-2_22.

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Meghashree, L., et Y. K. Guruprasad. « Enhancement of Lateral Stability of High-Rise Structures Adopting Effective Lateral Load Resisting Systems ». Dans Lecture Notes in Civil Engineering, 473–85. Singapore : Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-3371-4_41.

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O'Leary, A. « Gravity load resisting systems ». Dans fib Bulletin 27. Seismic design of precast concrete building structures, 191–200. fib. The International Federation for Structural Concrete, 2003. http://dx.doi.org/10.35789/fib.bull.0027.ch07.

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« Lateral Load-Resisting Systems ». Dans Reinforced Concrete Design of Tall Buildings, 199–252. CRC Press, 2009. http://dx.doi.org/10.1201/9781439804810-c3.

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« Combinations of Lateral Load Resisting Systems ». Dans Seismic Loads, 49–56. Reston, VA : American Society of Civil Engineers, 2010. http://dx.doi.org/10.1061/9780784410769.ch08.

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« Optimization of lateral load resisting systems ». Dans Performance-Based Optimization of Structures, 228–74. CRC Press, 2004. http://dx.doi.org/10.1201/9781482265521-10.

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D, Santhosh, Nambiyanna B, Harish M L et Dr R. Prabhakara. « Use of Effective Placing Different Lateral Load Resisting Structural System in High Rise RC Frame for All Seismic Zones By Using Response Spectrum Method ». Dans Advances in Industry 4.0, 189–202. De Gruyter, 2022. http://dx.doi.org/10.1515/9783110725490-012.

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Actes de conférences sur le sujet "LOAD-RESISTING SYSTEM"

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Besjak, Charles, Preetam Biswas, Syed Uzair Ullah, Xiaoyu He et Jing Zhuang. « Shenzhen Shum-Yip Tower One - Gravity and Lateral Load Resisting System Optimization ». Dans Structures Congress 2014. Reston, VA : American Society of Civil Engineers, 2014. http://dx.doi.org/10.1061/9780784413357.221.

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He, Guofeng, Dehong Xu, Wei Yu et Min Chen. « A novel dynamic control strategy on resisting impulsive load for uninterruptible power supply system ». Dans 2013 IEEE Applied Power Electronics Conference and Exposition - APEC 2013. IEEE, 2013. http://dx.doi.org/10.1109/apec.2013.6520490.

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Purushothama, Chaithra, H. Sharada Bai et G. Ambrish. « Seismic Behaviour of Six-Storied RC Residential Structure with Existing LLRS ». Dans IABSE Conference, Kuala Lumpur 2018 : Engineering the Developing World. Zurich, Switzerland : International Association for Bridge and Structural Engineering (IABSE), 2018. http://dx.doi.org/10.2749/kualalumpur.2018.0411.

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<p>Using an appropriate structural system is critical to good seismic performance of buildings. While moment- frame is the most commonly used lateral load resisting structural system, addition of other structural systems like structural walls, frame-wall system improve the seismic resistance. Structural system chosen should be suitable for good earthquake performance, with vertical and horizontal members of lateral load resisting system (LLRS) that can carry earthquake effects safely during strong earthquake shaking. Studies on real structures, practically adopted are negligible. Present work deals with the comparison of seismic performance of the structural system under consideration with existing features (Lift core RC wall &amp; Infill effect along the boundary walls) as LLRS in the building using response spectrum and time history method..</p>
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AlHamaydeh, Mohammad, Mohamed Essam Elkafrawy, Fouad Mostafa Amin, Ahmed Mansour Maky et Fardin Mahmoudi. « Analysis and Design of UHPC Tall Buildings in UAE with Ductile Coupled Shear Walls Lateral Load Resisting System ». Dans 2022 Advances in Science and Engineering Technology International Conferences (ASET). IEEE, 2022. http://dx.doi.org/10.1109/aset53988.2022.9735104.

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Mirhom, J. M., H. T. Hafez, K. N. Ibrahim, J. R. Shaker et M. Abdel-Mooty. « Progressive collapse analysis of a high-rise building considering the effect of an outrigger-belt lateral load resisting system ». Dans SUSI 2012. Southampton, UK : WIT Press, 2012. http://dx.doi.org/10.2495/su120261.

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Elesawy, Alaa, et Mustafa Batikha. « Structural behaviour of steel plate infilled outrigger wall system ». Dans 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.2021.1265.

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<p>The resistance of lateral loads is historically the main challenge in tall buildings. Structural Engineers always strive to find a redundant lateral resisting system that provides the required structural resistance, unleashes the architectural expression, optimizes the quantities and improves the constructability. Because of the increased stiffness together with the overturning resistance they provide and being a cost-effective solution, the outrigger systems are very efficient against the lateral loads in tall buildings. Conventionally, steel truss and reinforced concrete walls are used in the design and construction of outrigger systems. In this study, a steel infill plate connected to a reinforced concrete frame was investigated as an effective outrigger structural system in order to increase the initial stiffness and the load-carrying capacity and improve the ductility of the outrigger systems. Numerical Finite Element (FE) method using Geometrically and Materially Non-linear Analysis with Imperfection (GMNIA) was conducted in this study. In addition, the numerical analysis results were verified by the experimental results. As a result of this research, the ductility, strength, and initial stiffness of the steel plate-infilled outrigger were extremely improved than that of the traditional outrigger truss system.</p>
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Marani, Pietro, et Massimo Martelli. « Energy and Control Characteristics of a Novel Meter Out Hydraulic System for Mobile Applications ». Dans ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fpmc2017-4269.

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The metering out sensing system represents the latest, and most promising, architectural concept for improving the performance of mobile multiple actuation systems through hydraulic proportional components control. The first part of the paper introduces the novel architecture of meter-out sensing control system, properly designed to distribute the flow rate directed to actuators according to the proportional control of the metering out element only. To do this, an innovative piloting subsystem controls the pump displacement, while a set of compensated proportional control valves applied to actuators outlet work to manage the load unbalance. The inlet doesn’t have any proportional throttle element thus reducing control losses with respect to state-of-the-art systems. In this way, the architecture is able to control both resisting and overrunning loads, and its design could easily include the automatic activation of the regenerative function to limit the requested hydraulic power. Then, the paper highlights how the proposed architecture of meter-out sensing system, which does not require complex sensor networks or complex electronic controls, could overcome the most important limitations affecting other control technologies currently adopted in mobile hydraulics. The third part of the paper depicts the main results obtained in the evaluation of the performance figures of merit for the metering out sensing system, performed through a Virtual Test Procedure applied to a lumped and distributed parameter numerical model.
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Mathew, Alka Susan, et Regi P. Mohan. « Analytical Study on Seismic Performance of Aluminium Sandwich Shear Wall with Different Core Shapes ». Dans International Web Conference in Civil Engineering for a Sustainable Planet. AIJR Publisher, 2021. http://dx.doi.org/10.21467/proceedings.112.6.

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Shear walls are efficient monotonic load resisting systems in high rise or super high rise framed structures and hence are the most critical elements in seismic design. This paper focus on application of Aluminium sandwich shear walls (ASSW) consist of aluminium panels as top and bottom plates and aluminium core to serve as seismic protection system. ASSW have the advantage that these are light weight systems with high stiffness to weight ratio and bending strength. These could well replace steel shear walls which are having more structural weight. This paper presents analytical analysis of performance of ASSW under monotonic and seismic loading using ANSYS software. Sandwich shear wall models were first simulated, verified and analysis was carried out. The response of aluminum sandwich shear wall with two different core shapes or configurations are studied to obtain optimum core shape or configuration for maximum load bearing capacity. Then full scale monotonic and cyclic tests were conducted on aluminium sandwich shear wall with optimum core shapes or configurations. The obtained results allow useful information for the selection of aluminium sandwich shear wall in the seismic design of framed structures.
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Kim, Jung Han, Min Kyu Kim et In-Kil Choi. « Experimental Study on the Ultimate Limit State of a Lead-Rubber Bearing ». Dans ASME 2016 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/pvp2016-63774.

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Recently, a base isolation system used to be introduced for the seismic safety of nuclear power plants. The isolation system should keep its function over the design level earthquake with a high confidence like any other equipment in nuclear power plants. The seismic response of isolators by the extended design level earthquakes should be controlled not to exceed the ultimate limit state of it. In this study, lead-rubber bearings (LRBs) were tested. The small scale test specimen of a LRB had 550 mm diameter and the full scale was 1,500 mm diameter. The displacement controlled horizontal displacements were applied to the specimens with a constant vertical load in a test. The small scale model was tested under the various vertical load conditions to define the failure mode when the compressive force is excessive. In this test, the shear fracture by a large horizontal displacement with a relatively low axial load around the design axial load and the buckling fracture by a high axial load with a small effective area resisting the axial force were compared. The full scale model was tested to understand various characteristics such as the dependency of strain rate, the function of excitation displacement and the bidirectional behavior on the two-dimensional horizontal plane. As an experimental result, the behaviors of isolators under the ultimate limit state were investigated and the considerations for the prototype test of isolation devices were discussed.
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Li, Hong-Nan, Yan-Gang Zhao, Chen Li et Yong-Wei Yin. « Analytical Method and Its Experimental Verification for Seismic Reduction of Story-Increased Structures Under Earthquake ». Dans ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71349.

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Structural passive control devices have widely used in various engineering projects for resisting the wind load or earthquake excitation until now. The friction damper and sand isolation technology among them are of many advantages, such as easy installation, less cost and less maintenance fee. In this paper, a new type of energy-dissipated structural system for the reconstructive building with the story-increased frame is presented and investigated, in which the sliding-friction layer with sand between the lowest increased floor of outer frame structure and roof of original building is applied, and friction energy-dissipated dampers are used for the connections between the columns of outer frame and each floor of original building. A simplified analytical model of this system is proposed. For more appropriate theoretical analysis, the non-classical damping approach is introduced to calculation. The shaking table test is performed on the model of system to verify the effectiveness of the above seismic reduction system and proposed method. The results show that friction and energy-dissipated devices are very effective in reducing the seismic response and dissipating the input energy of model structure.
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Rapports d'organisations sur le sujet "LOAD-RESISTING SYSTEM"

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Briggs, Nicholas E., Robert Bailey Bond et Jerome F. Hajjar. Cyclic Behavior of Steel Headed Stud Anchors in Concrete-filled Steel Deck Diaphragms through Push-out Tests. Northeastern University. Department of Civil and Environmental Engineering., février 2023. http://dx.doi.org/10.17760/d20476962.

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Earthquake disasters in the United States account for $6.1 billion of economic losses each year, much of which is directly linked to infrastructure damage. These natural disasters are unpredictable and represent one of the most difficult design problems in regard to constructing resilient infrastructure. Structural floor and roof diaphragms act as the horizontal portion of the lateral force resisting system (LFRS), distributing the seismically derived inertial loads out from the heavy concrete slabs to the vertical LFRS. Composite concrete-filled steel deck floor and roof diaphragms are ubiquitously used in commercial construction worldwide due to the ease of construction and cost-effective use of structural material. This report presents a series of composite steel deck diaphragm Push-out tests at full scale that explore the effect that cyclic loading has on the strength of steel headed stud anchors. The effect that cyclic loading has on structural performance is explored across the variation of material and geometric parameters in the Push-out specimens, such as concrete density, steel headed stud anchor placement and grouping, steel deck orientation, and edge conditions. As compared to prior tests in the literature, the push-out tests conducted in this work have an extended specimen length that includes four rows of studs along the length rather than the typical two rows of studs, and an ability to impose cyclic loading. This provides novel insight into force flows in the specimens, failure mechanisms, and load distribution between studs and stud groups.
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Madsen, Robert L., Thomas A. Castle et Benjamin W. Schafer. Seismic Design of Cold-Formed Steel Lateral Load-Resisting Systems : A Guide for Practicing Engineers. National Institute of Standards and Technology, août 2016. http://dx.doi.org/10.6028/nist.gcr.16-917-38.

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COLD FORMED STEEL SHEAR WALL RACKING ANALYSIS THROUGH A MECHANISTIC APPROACH : CFS-RAMA. The Hong Kong Institute of Steel Construction, septembre 2022. http://dx.doi.org/10.18057/ijasc.2022.18.3.2.

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Cold-formed steel shear wall panels are an effective lateral load resisting system in cold-formed steel or light gauge constructions. The behavior of these panels is governed by the interaction of the sheathing - frame fasteners and the sheathing itself. Therefore, analysis of these panels for an applied lateral load (monotonic/cyclic) is complex due to the inherent non-linearity that exists in the fastener-sheathing interaction. This paper presents a novel and efficient, fastener based mechanistic approach that can reliably predict the response of cold-formed steel wall panels for an applied monotonic lateral load. The approach is purely mechanistic, alleviating the modelling complexity, computational costs and convergence issues which is generally confronted in finite element models. The computational time savings are in the order of seven when compared to the finite element counterparts. Albeit its simplicity, it gives a good insight into the component level forces such as on studs, tracks and individual fasteners for post-processing and performance-based seismic design at large. The present approach is incorporated in a computational framework - CFS-RAMA. The approach is general and thereby making it easy to analyze a variety of configurations of wall panels with brittle sheathing materials and the results are validated using monotonic racking test data published from literature. The design parameters estimated using EEEP (Equivalent Energy Elastic Plastic) method are also compared against corresponding experimental values and found in good agreement. The method provides a good estimate of the wall panel behavior for a variety of configurations, dimensions and sheathing materials used, making it an effective design tool for practicing engineers.
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