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Frontiers of Structural and Civil Engineering

ISSN 2095-2430

ISSN 2095-2449(Online)

CN 10-1023/X

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Front. Struct. Civ. Eng.    2016, Vol. 10 Issue (3) : 283-290    https://doi.org/10.1007/s11709-016-0344-z
RESEARCH ARTICLE
Self-centering steel plate shear walls for improving seismic resilience
Patricia M. CLAYTON1(),Daniel M. DOWDEN2,Chao-Hsien LI3,Jeffrey W. BERMAN4,Michel BRUNEAU2,Laura N. LOWES4,Keh-Chuan TSAI5
1. Department of Civil, Architectural, and Environmental Engineering, University of Texas at Austin, Austin TX 78705, USA
2. Department of Civil, Structural, and Environmental Engineering, University at Buffalo, New York 14260-1660, USA
3. National Center for Research on Earthquake Engineering, Taipei, Taiwan, China
4. Department of Civil and Environmental Engineering, University of Washington, Seattle, WA 98195-2700, USA
5. Department of Civil, Structural, and Environmental Engineering, Taiwan University, Taipei, Taiwan, China
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Abstract

As part of a Network for Earthquake Engineering Simulation research project led by researchers at the University of Washington with collaborators at University at Buffalo, and Taiwan National Center for Research on Earthquake Engineering, a self-centering steel plate shear wall (SC-SPSW) system has been developed to achieve enhanced seismic performance objectives, including recentering. The SC-SPSW consists of thin steel infill panels, referred to as web plates that serve as the primary lateral load-resisting and energy dissipating element of the system. Post-tensioned (PT) beam-to-column connections provide system recentering capabilities. A performance-based design procedure has been developed for the SC-SPSW, and a series of nonlinear response history analyses have been conducted to verify intended seismic performance at multiple hazard levels. Quasi-static subassembly tests, quasi-static and shake table tests of scaled three-story specimens, and pseudo-dynamic tests of two full-scale two-story SC-SPSWs have been conducted. As a culmination of this multi-year, multi-institutional project, this paper will present an overview of the SC-SPSW numerical and experimental research programs. This paper will also discuss innovative PT connection and web plate designs that were investigated to improve constructability, resilience, and seismic performance and that can be applied to other self-centering and steel plate shear wall systems.
Keywords self-centering      steel plate shear walls      large-scale experiment      post-tensioned connections      performance-based design     
Corresponding Author(s): Patricia M. CLAYTON   
Online First Date: 10 August 2016    Issue Date: 25 October 2016
 Cite this article:   
Patricia M. CLAYTON,Daniel M. DOWDEN,Chao-Hsien LI, et al. Self-centering steel plate shear walls for improving seismic resilience[J]. Front. Struct. Civ. Eng., 2016, 10(3): 283-290.
 URL:  
https://academic.hep.com.cn/fsce/EN/10.1007/s11709-016-0344-z
https://academic.hep.com.cn/fsce/EN/Y2016/V10/I3/283
Fig.1  (a) FR and (b) NewZ-BREAKSS PT connections
Fig.2  UW Subassembly test (a) test set-up and (b) sample results (adapted from Ref. [9])
Fig.3  UB third-scale specimens with (a) strip infill and (b) full infill web plates
Fig.4  UB test set-up for (a) quasi-static and (b) shake table tests [11]
Fig.5  Results from quasi-static testing of SC-SPSW specimens employing NZ-type connections with (a) full infill web plate and (b) strip infill plates
Fig.6  NCREE full-scale test set-up
Fig.7  Results from 10/50 excitation for specimens (a) FR and (b) NZ
Fig.8   Example of (a) strip model [10] and (b) shell element web plate model for a UW subassembly test
Fig.9  Example of comparison between a typical UW subassembly specimen with the following web plate numerical models: (a) Strip model with tension-only material behavior (adapted from Ref. [10]), (b) strip model with compressive capacity equal to 25% of yield (adapted from Ref. [10]), and (c) shell element web plate model
Fig.10  Results from NRHA of 3-story SC-SPSWs (based on results presented in Refs. [5] and [17]) including SC-SPSWs with web plates fully connected to beams and columns but modeled using a (a) tension-only and (b) tension-compression strip model, and (c) a comparable SC-SPSW with web plates connected to the beams only modeled using a tension-compression strip model
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