The cyclic behavior of Butterfly-shaped Link Steel Plate Shear Walls with and without Buckling-restrainers

Valizadeh, Hassan; Veladi, Hedayat; Azar, Bahman Farahmand; Sheidaii, Mohammad Reza

doi:10.1016/j.istruc.2020.06.012

Cited by 12 publications

(3 citation statements)

References 22 publications

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“…Based on this, the AISC 341, AISC Design Guide 20, and the CSA S16-19/2014 [1] suggested that Equation (3) ensure that the columns have sufficient rigidity during the early design of steel shear walls. In Equation (3), ω h denotes the column flexibility value.…”

Section: The Spsw System's Designmentioning

confidence: 99%

“…Several well-known and very sound techniques can protect against seismic risks, such as creating a flexible foundation or base isolation system, vibrational control devices, and reinforcing the buildings by shear walls, moment-resisting frames, steel braced frames, and so on. Among all the mentioned methods, the steel plate shear walls (SPSWs) represent a revolutionary lateral load-resisting technique that could successfully brace a building against wind and earthquakes [1][2][3][4][5][6][7]. The structural system comprises steel plates that are one story high and one bay wide and connected to the surrounding beams and columns.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Study of an Innovative Infill Web-Strips Steel Plate Shear Wall with Rigid Beam-to-Column Connections

et al. 2022

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Steel plate shear walls (SPSWs) offer good energy dissipation capability when subjected to seismic forces as a robust lateral load resisting structure. This research investigated the cyclic behaviors of innovative infill web-strips (IWS-SPSW) and conventional unstiffened steel plate shear (USPSW) experimentally and numerically. As a result, two specimens of a 1:3 scale three-story single-bay IWS-SPSW and USPSW were fabricated and tested under cyclic lateral loading. Rigid moment-resistant connections were used for the steel plate shear wall beam-column connection. The steel shear walls with infill web strips showed high ductility and less shear load-bearing than the USPSW. The hysteresis results showed that the IWS-SPSW had high energy dissipation with no severe beam-columns damages. On the other hand, the USPSW displayed severe post-buckling, infill panel cracks, and first-floor column damages. Moreover, the IWS-SPSW shear strength did not fall in the test specimen beyond 2.5% average story drift, where the structure exhibited great seismic behavior. FE models were created and validated with experimental data. It has been proven that the infill web-strips can affect an SPSW system’s high performance and overall energy dissipation. From a parametric study, the material features of the infill web-strips, such as steel strength and thickness, can enhance the system’s impact even more.

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Section: The Spsw System's Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study of an Innovative Infill Web-Strips Steel Plate Shear Wall with Rigid Beam-to-Column Connections

et al. 2022

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“…In order to meet the purpose of building function and improve the seismic performance of steel plate shear wall, Robert and Sabouri-ghomi [6], Alavi and Nateghi [7], Matteis et al [8] and Phillips and Eatherton [9] studied the seismic performance of the steel plate shear wall with holes. Valizadeh et al [10] proposed a kind of prefabricated steel plate shear wall with butterfly connecting rods, and investigated its seismic performance. The results showed that the prefabricated steel plate shear wall can effectively reduce the out-ofplane buckling, improve the shrinkage of hysteretic curve, and enhance the energy dissipation capacity.…”

Section: Introductionmentioning

confidence: 99%

Structural Seismic Performance of Prefabricated Steel Plate Shear Wall with High Energy Dissipation

Wang

2023

Lecture Notes in Civil Engineering

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China is located at the intersection of the Pacific Rim seismic belt and the Alpine Mountain-Himalayan seismic belt. Earthquakes occur frequently and with high intensity in China, and the structural damage caused by earthquakes leads to huge casualties and serious economic losses. Steel plate shear wall exhibits satisfying seismic performance which is the key to its application in high-rise buildings and high intensity areas. Meanwhile, the industrialization of new construction requires prefabricated steel plate shear wall structure. In this paper, a kind of prefabricated steel plate shear wall with high energy dissipation is proposed. The finite element study on the seismic performance of the prefabricated steel plate shear wall under low cyclic load was carried out by varying the width-to-thickness ratio of steel connecting plate belt and width-to-thickness ratio of ring damper. The failure modes, hysteresis curves, skeleton curves, stiffness degradation, energy dissipation and displacement ductility coefficients were analyzed. The results showed that the hysteretic curves of the prefabricated steel plate shear wall are relatively full under low cyclic load, and the displacement ductility coefficients are above 8. It is noted that the seismic performance of the prefabricated steel plate shear wall is advantageous. It is suggested that width-to-thickness ratio of the steel connecting plate belt and the width-to-thickness ratio of the ring damper are 3.75 for engineering practice.

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Numerical modeling of seismic behavior of ellipse and peanut-shaped auxetic steel plate shear walls

Wang

Zhu

Cai

2023

Low-carbon Mater. Green Constr.

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This study proposes a new auxetic-shaped steel plate shear walls (simply referred to as ASSPSWs) consisting of boundary members and built-in perforated infill plates. The connection type between the boundary members is a hinge joint. The hole forms on the infill plates include orthogonal ellipse-shaped (ASSPSW-OE) and orthogonal peanut-shaped (ASSPSW-OP). This paper studied the hysteretic performance of two steel plate shear walls’ types based on the finite element analysis method. Within the study context, a parametric analysis was carried out to investigate the influence of various factors, such as hole size and hole distance, on the seismic performance of steel plate shear walls (SPSWs). The results indicated that reducing the the ratio of the ligament thickness to ellipse major axis (t/D) in orthogonal ellipse-shaped SPSWs can effectively increase the porosity while reducing the bearing and energy dissipation capacities. Under the condition with the t/D unchanged, increasing the ratio of the major to minor axis of the ellipse (d/D) raises the porosity and does not significantly reduce the bearing capacity and energy dissipation capacity of the SPSWs. For orthogonal peanut-shaped SPSWs, the holes’ geometrical parameters significantly influence the hysteretic performance. Particularly, with the increase in the radial ratio of large to small circles in a peanut-shaped hole (R/r), the spacing between cells decreases. When drift exceeds 2%, the equivalent viscous damping ratio decreases sharply. Unlike the orthogonal ellipse-shaped SPSWs, changing the arrangement angle of peanut-shaped cells has no significant effect on orthogonal peanut-shaped SPSWs. However, the larger the angle, the greater the out-of-plane buckling of orthogonal ellipse-shaped SPSWs; thus, the energy dissipation capacity is reduced. The similarities lie in that the larger cell arrangement angle will make the steel plates have a complete stress field, and the bearing capacity will be slightly improved. When the cell arrangement angle (θ) is 45°, the SPSWs can develop high initial stiffness.

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The cyclic behavior of Butterfly-shaped Link Steel Plate Shear Walls with and without Buckling-restrainers

Cited by 12 publications

References 22 publications

Experimental and Numerical Study of an Innovative Infill Web-Strips Steel Plate Shear Wall with Rigid Beam-to-Column Connections

Experimental and Numerical Study of an Innovative Infill Web-Strips Steel Plate Shear Wall with Rigid Beam-to-Column Connections

Structural Seismic Performance of Prefabricated Steel Plate Shear Wall with High Energy Dissipation

Numerical modeling of seismic behavior of ellipse and peanut-shaped auxetic steel plate shear walls

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