题名: |
Lateral Performance of Self-Centering Steel-Timber Hybrid Shear Walls with Slip-Friction Dampers: Experimental Investigation and Numerical Simulation |
正文语种: |
eng |
作者: |
Li, Zheng;Chen, Fei;He, Minjuan;Zhou, Ruirui;Cui, Ye;Sun, Yongliang;He, Guirong |
作者单位: |
Tongji Univ Dept Struct Engn 1239 Siping Rd Shanghai 200092 Peoples R China;Tongji Univ Dept Struct Engn 1239 Siping Rd Shanghai 200092 Peoples R China;Tongji Univ Dept Struct Engn 1239 Siping Rd Shanghai 200092 Peoples R China;Shanghai Municipal Engn Design Inst Grp Co Ltd 901 Zhongshan Rd Shanghai 200092 Peoples R China;Tongji Univ Dept Disaster Mitigat Struct 1239 Siping Rd Shanghai 200092 Peoples R China;Tongji Architectural Design Grp Co Ltd 1230 Siping Rd Shanghai 200092 Peoples R China;Tongji Architectural Design Grp Co Ltd 1230 Siping Rd Shanghai 200092 Peoples R China |
关键词: |
Author key Steel-timber hybrid structure;Self-centering;Earthquake resilience;Seismic performance;Slip-friction damper |
摘要: |
An innovative self-centering steel-timber hybrid shear wall (SC-STHSW) system is proposed in this paper. The SC-STHSW system is composed of two subsystems: the posttensioned (PT) steel frame, and the infill light-frame wood shear wall. Slip-friction dampers are used as connectors between the frame and shear wall. A reversed cyclic loading experiment was conducted to investigate the failure modes, hysteretic characteristics, and the loss of posttensioning force in the system. The working mechanism of the subsystems and the interaction between them were explored. Experimental results revealed that the peculiar flag-shaped hysteretic behavior is available in the SC-STHSW system. Under the coupled effects of the PT technology and the slip-friction dampers, the energy dissipation behavior of the system was transferred from the plasticity in primary structural members to the frictional dissipation in the dampers, and the residual deformation of the system was controlled effectively. A detailed numerical model was developed to predict the hysteretic performance of the SC-STHSW system. The model was validated by comparing the experimental and numerical results. This work supports the application of the innovative steel-timber hybrid structural system in practical engineering. DOI: 10.1061/(ASCE)ST.1943-541X.0002850. (c) 2020 American Society of Civil Engineers. |
出版年: |
2021 |
期刊名称: |
Journal of Structural Engineering |
卷: |
147 |
期: |
1 |
页码: |
04020291.1-04020291.17 |