Comparative study of steel plate shear walls with different types of unbonded stiffeners

Yu, Jui-Chen; Li, Liming; Li, Bo; Hao, Jiping; Gao, Xi; Feng, Xiaotian

doi:10.1016/j.jcsr.2019.05.007

Cited by 25 publications

(6 citation statements)

References 14 publications

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“…After yielding, 0.5Δey is used as the increment, and the load is repeated three times in each load cycle. Δey is the lateral displacement at which Vertical and horizontal loads were applied sequentially to the specimen in the test [14]. Vertical loads were applied to the specimen through the top of the column simultaneously using two hydraulic jacks.…”

Section: Test Loading Protocolmentioning

confidence: 99%

Degradation of Seismic Performance of Thin Steel Plate Shear Walls in Earthquakes

Du,

Zhang,

Cao

et al. 2024

Buildings

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Steel plate shear walls (SPSWs) are widely used in earthquake-prone areas, and they usually undergo multiple earthquakes throughout their service lives. The performances of SPSWs under a single shot of an earthquake have been widely studied, although the secondary seismic performance of earthquake-damaged structures remains unclear. Damage to an SPSW structure during an earthquake is difficult to evaluate. In this study, the degradation of the seismic performance of SPSWs during earthquakes was investigated. A test specimen was subjected to a two-stage quasistatic load. The plastic development and failure modes of SPSW specimens were investigated. The degradation of bearing capacity, stiffness, and energy dissipation performance was analyzed. On the basis of the experimental investigation, finite-element models introducing the ductile damage criterion and the cyclic constitutive model of steel were established. The degradation of the seismic performance of SPSWs under secondary earthquakes was studied. The results indicate that the stiffness of the SPSWs degrades more significantly than the bearing capacity. The larger the height-to-thickness ratio of the embedded plate, the more obvious the decrease in the bearing capacity, and the smaller the decrease in stiffness. With the increase in the maximum lateral displacement reached by the structure in an earthquake, and as the pinch phenomenon of the hysteresis curve of the SPSW becomes more serious, the energy dissipation capacity shows a uniform downward trend.

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Section: Test Loading Protocolmentioning

confidence: 99%

Degradation of Seismic Performance of Thin Steel Plate Shear Walls in Earthquakes

Du,

Zhang,

Cao

et al. 2024

Buildings

View full text Add to dashboard Cite

show abstract

“…The authors carried out an FE analysis on SPSWs and predicted distributions in the tendency fractures on the web plate by equivalent plastic strain (PEEQ). Yu et al (2019) proved the pinching phenomenon of hysteretic curves by employing experimental tests on three 1/3-scale one-bay, two-story SPSW specimens. However, this phenomenon was more evident in specimens without restrains.…”

Section: Introductionmentioning

confidence: 98%

Experimental and numerical study on largely perforated steel shear plates with rectangular tube–shaped links

Hadi

Sheidaii

Boudaghi

et al. 2020

Advances in Structural Engineering

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Steel plate shear wall is one of the most effective dissipation systems which are commonly used in buildings. In order to improve the hysteretic behavior of shear panels, large perforation patterns may be applied, transforming the shear plate into a sort of grid systems, where plastic deformations are concentrated on specific internal link elements. This study investigates the behavior of grid systems loaded in shear where the internal links are created by cutting out internal parts, leaving rectangular tube–shaped link elements. The influence of internal link geometry on the cyclic performance of the systems is investigated experimentally. To this purpose, two specimens that varied in the width of links were fabricated and tested. The results indicate that any increase in the width of links leads to the growth of the ultimate strength, stiffness, and energy absorption capacity. Likewise, the stress distribution and fracture tendency of the tested specimens have been simulated by the finite element software (ABAQUS) and validated according to the experimental results. Based on finite element results, a suitable analytical formulation for the prediction of the shear strength at several shear deformation demands, considering the effect of thickness of the link, has been provided. Moreover, to improve the fracture tendency of the specimens, butterfly-shaped links, which varied in the middle length, were applied. The obtained results, which have been interpreted by considering the equivalent plastic strain value, prove that the shear panel behavior improves significantly when butterfly-shaped links are considered.

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“…The behavior of SPSWs is mostly affected by the early elastic buckling of the infilled plate. Several experimental and numerical studies revealed that welding stiffeners to the infill steel plate could improve the stiffness and strength of SPSWs [1][2][3]. However, welding stiffeners is a time-consuming procedure and mainly increase the cost of construction.…”

Section: Introductionmentioning

confidence: 99%

Seismic Evaluation of New Steel Infill Panels for Steel Shear Walls

et al. 2021

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Corrugated Steel Shear Wall (CSSW) is an efficient shear wall system, which has higher energy dissipation capacity, ductility and stiffness when compared to the Steel Plate Shear Wall (SPSW) with flat infill plate. Despite of these advantages, the ultimate load of CSSW is lower than that of SPSW. Various studies conducted to improve the cyclic behavior of CSSW revealed that increasing corrugation angle might enhance energy dissipation capacity and toughness of CSSWs. However, the ultimate load of CSSW was not improved by increasing the corrugation angle. Thus, the current study proposed new corrugated infill panel schemes to improve the ultimate load of CSSWs. To this end, Finite Element (FE) models were established using ABAQUS/Standard and verified with the experimental results from previous researches. The corrugation angle of the proposed plates was found based on a numerical investigation on seven CSSW FE models with the corrugation angle ranges from 30° to 120°. The FE results revealed that the model with the corrugation angle of 120 achieved highest ultimate load, energy dissipation capacity and toughness amongst the CSSW models. In addition, the ultimate loads, energy dissipation capacities and toughness of the proposed infill plates were up to 11.8%, 53.9% and 8.8% respectively higher than those of CSSW model with the corrugation angle of 120°. Furthermore, the proposed infill plates use up to 13.4% lower amount of steel compared to the corrugated plate with the corrugation angle of 120. Doi: 10.28991/cej-2021-03091678 Full Text: PDF

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Comparative study of steel plate shear walls with different types of unbonded stiffeners

Cited by 25 publications

References 14 publications

Degradation of Seismic Performance of Thin Steel Plate Shear Walls in Earthquakes

Degradation of Seismic Performance of Thin Steel Plate Shear Walls in Earthquakes

Experimental and numerical study on largely perforated steel shear plates with rectangular tube–shaped links

Seismic Evaluation of New Steel Infill Panels for Steel Shear Walls

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