Behaviour of cold-formed steel shear walls under horizontal and vertical loads

Lange, Jörg; Naujoks, Bernd

doi:10.1016/j.tws.2007.01.007

Cited by 45 publications

(29 citation statements)

References 2 publications

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“…Two types of failure mechanisms that can be observed in these modeling are as follows: Local buckling of the cold-formed steel section at the bottom of the compression stud is a common event in practice. Figure 15a shows this failure mode in the experimental tests of Lange and Naujoks [16] and Figure 15b indicate the similar failure in the finite element model.…”

Section: Failure Modesmentioning

confidence: 59%

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A Parametric Study on Seismic Characteristics of Cold-Formed Steel Shear Walls by Finite Element Modeling

Hatami¹,

Parvaneh²,

Ronagh³

2014

Volume 10 Number 1

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Shear wall panels, including cold-formed steel frames and its attached sheathing, are common lateral load resisting systems of cold-formed steel structures. In this paper, the finite element method is used to study the lateral performance of shear wall panels. The finite element model is validated against experimental results of other researchers. Using the validated model, a parametric study is described to determine strength, drift and seismic behavior of the shear wall panels. Based on the results, it is concluded that the initial stiffness and ultimate lateral strength are dramatically affected by the thickness of the frame members, type of sheathing material, edge screw spacing, height of the frame, while some parameters such as field screw spacing have a minor effect on the initial stiffness and the ultimate lateral strength. In addition, this study looks into the earthquake performance of the shear wall panels and presents the corresponding ductility factor and force reduction factor (R-factor) of shear wall panels.

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Section: Failure Modesmentioning

confidence: 59%

“…Local Buckling at Bottom of Stud; a) Experiment [16], b) The Present Finite Element Model Another failure mode is the overall buckling of studs under compression loads created from the racking force. This phenomenon is shown in Figure 16.…”

Section: Failure Modesmentioning

confidence: 99%

A Parametric Study on Seismic Characteristics of Cold-Formed Steel Shear Walls by Finite Element Modeling

Hatami¹,

Parvaneh²,

Ronagh³

2014

Volume 10 Number 1

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“…The parameters of the hysteresis models are estimated through a number of load-deformation curves obtained experimentally under cyclic displacement histories, collected from a number of recent studies available in the literature [3,9,10].…”

Section: Numerical Modellingmentioning

confidence: 99%

“…Therefore, extensive experimental and analytical research work have been carried out to gain a better insight of the dynamic behaviour of shear walls and to establish design tables containing the ultimate capacities for static and seismic stress for different wall assemblies [1,2]. Based on the results of large series of tests, design procedures and analytical methods were also developed to allow for the design of walls carrying horizontal and vertical loads [3,4].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear seismic behaviour of experimentally identified stiffness and damping characteristics of cold formed steel infill frames

Bourahla¹,

El-Djouzi²,

Allal³

2010

WIT Transactions on the Built Environment

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This paper evaluates the effect of wall panels, made of cold formed steel with sheathing on both sides used as infill, on the seismic behaviour of steel frames in terms of the overall additional stiffness and damping capacity. For this purpose, a series of ambient vibration testing was first carried out on a bare steel skeleton and then on a fully finished five-storey building. Based on the global characteristics of the panels, which were identified by experimental matching, a finite element modeling was made to reproduce the behaviour of the entire structure. The numerical model of the structure was subjected to a ground acceleration time histories recorded in the region during the Boumerdes 2003 earthquake. By using this procedure, inadequacies in the FE modeling are highlighted and suggestions are made for better modelling practice for similar structures. The results obtained elucidate some aspects of the stiffening and energy dissipating capacity role of the infill panels.

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“…In this case, the definition of shear wall elements (studs, sheathing panels, sheathing-to-frame connections, and frame-to-foundation anchors), that constitute the main lateral resisting system in case of seismic actions, is a key point for the design. Currently, a relatively large database of experimental investigations carried out on different CFS wall assemblies subjected to in plane shear loading has been obtained by Gad et al [1], Tian et al [2], Branston et al [3], Fulop and Dubina [4], Landolfo et al [5], Langea and Naujoks [6], Serrette et al [7]. As result, the main parameters influencing the shear behaviour of walls have been identified.…”

Section: Introductionmentioning

confidence: 99%

A Specific Procedure for Seismic Design of Cold-Formed Steel Housing

Fiorino¹,

Iuorio²,

Landolfo³

2010

Volume 6 Number 1

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ABSTRACT:In the last years, the seismic performance of cold formed steel (CFS) systems has been object of study by a large number of research teams. The main parameters influencing the system behaviour under horizontal loads have been defined and the possible mechanisms of collapse have been identified. Therefore, at the moment, the development of upgraded specifications and design tools that could be readily used by designer is a must. For these reasons, this paper aims to propose a seismic design procedure that allows the shear wall components to be defined in few steps. The procedure is based on the recognized assumption that the best performance of a CFS shear wall is achieved when the sheathing-to-stud fasteners failure is reached. Moreover, it accounts the results of previous studies that defined the relation between behaviour of shear wall and fastener spacing. Hence, by defining three nomographs, the proposed procedure allows the sheathing-to-stud fasteners and all the other shear wall components to be defined. The latter are determined in accordance with capacity design criteria. Finally, the applicability of the presented procedure is verified through a case study.Keywords: Design nomographs, cold-formed steel, housing, linear dynamic analysis, nonlinear static analysis, seismic design, sheathing panels INTRODUCTIONThe growing demand of high performance housing is increasing the interest for cold-formed steel (CFS) structures. These structures are realized with a repetitive number of light gauge cold-rolled steel profiles, produced off-site in controlled environment and, then, assembled on-site with mechanical connections. These characteristics provide them lightness, rapid on-site erection, dimensional stability, high structural performance and considerable potential for recycling and reuse of all the materials. In particular, the spreading use of these constructions in countries as Japan shows the wide applicability of these systems also in seismic zones (Figure1). The global horizontal response of CFS structures under seismic actions basically depends on the shear response of CFS walls that are usually sheathed with metal sheets or panels (sandwich panels, wood-based or gypsum-based panels). Moreover, when the sheathing has adequate strength and stiffness and it is effectively connected with the frame, then the interaction between profiles, sheathing panels and sheathing-to-frame connections can be advantageously taken into account in the structural analysis. In this case, the definition of shear wall elements (studs, sheathing panels, sheathing-to-frame connections, and frame-to-foundation anchors), that constitute the main lateral resisting system in case of seismic actions, is a key point for the design. Currently, a relatively large database of experimental investigations carried out on different CFS wall assemblies subjected to in plane shear loading has been obtained by Gad et al. [7]. As result, the main parameters influencing the shear behaviour of walls have been identified. As a consequen...

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Behaviour of cold-formed steel shear walls under horizontal and vertical loads

Cited by 45 publications

References 2 publications

A Parametric Study on Seismic Characteristics of Cold-Formed Steel Shear Walls by Finite Element Modeling

A Parametric Study on Seismic Characteristics of Cold-Formed Steel Shear Walls by Finite Element Modeling

Nonlinear seismic behaviour of experimentally identified stiffness and damping characteristics of cold formed steel infill frames

A Specific Procedure for Seismic Design of Cold-Formed Steel Housing

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