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Author:

Wang, Meng (Wang, Meng.) | Zhang, Xiaokang (Zhang, Xiaokang.) | Yang, Lu (Yang, Lu.) (Scholars:杨璐) | Yang, Weiguo (Yang, Weiguo.)

Indexed by:

EI Scopus SCIE

Abstract:

A novel dual lateral force resisting system consisting of low-yield point steel plate shear walls with diagonal T-shaped-stiffener (LSPSW-DTS) was proposed as a promising alternative to improve the buckling stability, seismic behavior, and serviceability of SPSWs. The influence of several key factors on the cyclic performance, failure behavior, and plate-frame interaction characteristics was evaluated using numerical investigations. The optimum configuration of stiffeners was determined to achieve a material-efficient design. The critical values of the column flexibility coefficient were determined to ensure sufficient development of the tension fields inside the infill panel. Finally, the contribution of the boundary frame was quantified by establishing an equation for predicting the proportional shear resistance of the infill panels. The analytical results demonstrated that the hysteresis curves, shear capacity, and energy dissipation of all the overall structure, infill panel, and boundary frame enhanced as the flexural stiffness ratios of the stiffeners increased, demonstrating that the DTS significantly improved both the cyclic performance of LSPSW structures and the plate-frame interaction. In addition, the plates of the stiffeners did not experience adverse local instability, indicating the advantages of the T-shaped stiffeners. However, once the flexural stiffness ratio of the stiffeners was sufficiently large, an additional increase in the degree of stiffening had only minor positive effects on the shear capacity and energy dissipation performance. A larger flexural stiffness ratio was required for larger width-to-height ratios, height-to-thickness ratios, or column flexibility coefficients to obtain the expected failure modes and achieve satisfactory shear capacity efficiency and energy dissipation efficiency. (C) 2020 Elsevier Ltd. All rights reserved.

Keyword:

Plate-frame interaction Diagonal T-shaped stiffeners (DTS) Flexural stiffness ratio of stiffeners to plate Low yield point steel (LYP) Cyclic performance Steel plate shear wall (SPSW)

Author Community:

  • [ 1 ] [Wang, Meng]Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China
  • [ 2 ] [Yang, Weiguo]Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China
  • [ 3 ] [Zhang, Xiaokang]Beijing Urban Construct Design & Dev Grp Co, Beijing 100032, Peoples R China
  • [ 4 ] [Yang, Lu]Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

Reprint Author's Address:

  • [Wang, Meng]Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China

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Source :

JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH

ISSN: 0143-974X

Year: 2020

Volume: 171

4 . 1 0 0

JCR@2022

ESI Discipline: ENGINEERING;

ESI HC Threshold:115

Cited Count:

WoS CC Cited Count: 28

SCOPUS Cited Count: 34

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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