Shear Wall Resistance of Lightgage Steel Stud Wall Systems

Abstract

Experimental investigations were conducted to evaluate the lateral load-deflection characteristics of lightgage steel stud/gypsum wallboard panel combinations subjected to lateral cyclic loads. In all, six 8′ × 8′ specimens were tested. A reasonable one-to-one correspondence between the strap area increase and the increase in the contribution from the strap to the overall loadcarrying capacity of the panel at intermediate and high drift ratios was observed. The panel lateral stiffness for a given stabilized cycle degraded by about 7% to 15% as compared with the lateral stiffness of the corresponding virgin cycle. Lateral stiffness degradation increased as the drift ratios became larger. The energy dissipation ability of the panels in the stabilized cycle was about 60% of the virgin cycle. An average value of equivalent viscous damping for all the cycles based on panel hysteretic behavior was about 12%.

Analysis of Measured and Calculated Response of a Cold-formed Steel Shear Panel Structure

“…This observation is not unique to this study since previous studies, including those by Adham et al [1990] and Fulop and Dubina [2002], have shown similar results. The unique aspect of the tension-only member is the large gap of almost zero strength and stiffness T.-W. Kim, J. Wilcoski, and D. A. Foutch that develops between previous points of large deformations.…”

Seismic response of Cfs strap-braced stud walls: Theoretical study

“…Studies concerning the steel flat strap X bracing behaviour include wall specimens realized with strap braces on one or both wall sides, different strap dimensions and steel material properties [4,23,25,27,28]. The experimental results highlighted that the compressed diagonal straps do not collaborate to the wall lateral strength [23].…”

“…The experimental results highlighted that the compressed diagonal straps do not collaborate to the wall lateral strength [23]. Therefore, the design of the strap is a key issue in the seismic behaviour of CFS strap-braced stud walls and, for this reason, these studies were devoted to optimize the flat strap X bracing contribution in the wall lateral response.…”

“…A rather large number of experimental programs, aimed at investigating the seismic performance of CFS strap-braced stud walls, have been carried out (Adham et al [23], Serrette [24], Serrette [4], Serrette and Ogunfunmi [25], Fulop and Dubina [26], Tian et al [27], Al-Kharat and Rogers [7], Casafont et al [28], Moghimi and Ronagh [29] and Velchev et al [10]). In particular, the studies were focused on the monotonic and cyclic response of these systems in order to evaluate the contribution provided to the wall shear resistance by flat strap braces combined with gypsum sheathing boards in some cases.…”

Earthquake Resistance of Modular Building Units Using Load-Bearing Steel Stud Panels

“…이 중 Fig. 1에 나타낸 스 터드패널 모듈러시스템은 용접 및 강재물량을 절감하는데 가 장 효과적이다 [4], [5], [6], [7], [8], [9] . 또한, 냉강성형형강 부재는 가공성이 탁월하기 때문에 단면의 형상을 사용 목적에 따라 다양화하여 사용할 수 있는 장점이 있다 [10] .…”