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Computers and Concrete Volume 21, Number 3, March 2018 , pages 335-344 DOI: https://doi.org/10.12989/cac.2018.21.3.335 |
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Investigation on the seismic performance of T-shaped column joints |
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Changhong Chen, He Gong, Yao Yao, Ying Huang, Leon M. Keer
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| Abstract | ||
| More and more special-shaped structural systems have been widely used in various industrial and civil buildings in order to satisfy the new structural system and the increasing demand for architectural beauty. With the popularity of the specialshaped structure system, its seismic performance and damage form have also attracted extensive attention. In the current research, an experimental analysis of six groups of (2/3 scale) T-shaped column joints was conducted to investigate the seismic performance of T-shaped column joints. Effects of the beam cross section, transverse stirrup ratio and axial compression ratio on bearing capacity and energy dissipation capacity of column joints were obtained. The crack pattern of T-shaped column joints under low cyclic load was presented and showed a reversed \"K\" mode. According to the crack configurations, a tensile-shear failure model to determine the shear bearing capacity and crack propagation mechanisms is developed. | ||
| Key Words | ||
| T-shaped column joint; experimental analysis; crack configuration; tensile-shear model; shear resistance | ||
| Address | ||
| Changhong Chen, He Gong, Yao Yao: School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi\'an 710012, China Ying Huang: School of Civil Engineering, Xi\'an University of Architecture and Technology, Xi\'an 710055, China Leon M. Keer: Civil and Environmental Engineering, Northwestern University, Evanston, IL 60286, USA | ||