Influences of the gravity loads on the cyclic performance of unstiffened steel plate shear wall

• Published in: The structural design of tall and special buildings 2016-12, Vol.25 (17), p.988-1008
• Main Authors: Lv, Yang, Li, Zhong-xian
• Format: Article
• Language: English
• Subjects: cyclic behavior; Cyclic loads; Energy dissipation; failure mode; Fatigue (materials); Gravitation; gravity load; Hysteresis; Mathematical models; monotonic behavior; Parks; Plates (structural members); steel plate shear wall; Ultimate tensile strength
• ISSN: 1541-7794; 1541-7808
• DOI: 10.1002/tal.1294

Summary This paper is aimed at investigating the influences of gravity loads on the overall performance of the steel plate shear wall (SPSW) under the monotonic as well as cyclic loadings. A nonlinear finite‐element model for SPSWs was developed and verified using monotonic tests carried out by Behbahanifard and Drivers et al. and the three large‐scale three story cyclic test specimens (namely SC2T, SC4T and SC6T) carried out by Park et al.; very good predictions of the ultimate strengths, hysteresis properties and failure modes were obtained. Based on these three specimens tested by Park et al., nine more numerical SPSW specimens with the axial stresses of the boundary columns equal to 100 MPa, 200 MPa and 300 MPa were analyzed. The strength and tension strip angles under lateral monotonic loadings and the hysteresis properties and energy dissipation under lateral cyclic loadings were analyzed. Finally, the strength prediction method of the SPSWs with the flexure‐dominate behavior originally proposed by Park et al. was modified to account for the tension‐field action of the infill plates, and better prediction of the shear strength of the SPSW was obtained. Copyright © 2016 John Wiley & Sons, Ltd.