Experimental study on seismic behavior of prefabricated concrete-filled circular steel tube composite shear walls

被引：0
|
作者：
Wu L. [1 ,2 ]
Yu F. [1 ]
Guo X. [1 ]
Chen H. [1 ,2 ]
Su Y. [1 ,2 ]
Ren H. [1 ]
机构：
[1] College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan
[2] Hebei Earthquake Engineering Research Center, Tangshan
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2022年 / 43卷
关键词：
composite structure; concrete-filled steel tube; low cyclic reversed loading test; prefabricated shear wall; seismic performance;
D O I：
10.14006/j.jzjgxb.2022.S1.0020
中图分类号：
学科分类号：
摘要：
To study the seismic performance of a novel type of prefabricated built-in round steel tube concrete composite shear wall, three full scale shear wall specimens were designed, including cast-in-place reinforced concrete shear wall, cast-in-place concrete filled steel tubular composite shear wall and the prefabricated concrete filled steel tube composite shear wall, and tested under low cycle reciprocating load test. The failure pattern, hysteresis property, energy dissipation, ductility and rigidity degeneration of the specimens were analyzed. The results show that the grouting connection method of steel tube sleeve can effectively transfer the vertical load of concrete-filled steel tube concealed columns on both sides of the composite shear wall, and the connection is safe and reliable. The elastic-plastic inter-story displacement angle of prefabricated concrete-filled steel tubular composite shear wall and cast-in-place concrete-filled steel tubular composite shear wall can reach 2. 5%, which is 25% higher than that of ordinary reinforced concrete shear wall. The residual bearing capacity of concrete-filled steel tubular concealed column shear wall is about twice that of cast-in-place reinforced concrete shear wall. Compared with ordinary reinforced concrete shear walls, the deformation capacity of cast-in-place concrete-filled steel tubular shear wall and prefabricated concrete-filled steel tubular shear wall is increased by 28. 4% and 25. 3% respectively. Energy dissipation capacity is increased by 25. 5% and 43. 6%, respectively. The connection of concealed columns on both sides of the prefabricated CFST composite shear wall structure can be simulated by a spring element. And the recommended vertical stiffness of spring is 1 350 kN / mm. © 2022 Science Press. All rights reserved.
引用
收藏
页码：186 / 195
页数：9
相关论文
共 22 条
  • [1] ZHOU Ying, LU Xilin, Lessons learnt from damages of reinforced concrete tall buildings in Chile Earthquake and revelations to structural design in China, Journal of Building Structures, 32, 5, pp. 17-23, (2011)
  • [2] XU Peifu, HUANG Jifeng, CHEN Fusheng, Earthquake damages to shear wall structure in last fifty years and seismic design enlightenment, Journal of Building Structures, 38, 3, pp. 1-13, (2017)
  • [3] LEW M, NAEIM F, CARPENTER L D, Et al., The significance of the 27 February 2010 Offshore Maule, Chile earthquake [J], Structural Design of Tall and Special Buildings, 19, 8, pp. 826-837, (2010)
  • [4] QIAN Jiaru, JIANG Zao, JI Xiaodong, Behavior of steel tube-reinforced concrete composite walls subjected to high axial force and cyclic loading [J], Engineering Structures, 36, 4, pp. 173-184, (2012)
  • [5] QI Jiarui, WANG Tiecheng, SU Youpo, Et al., Experiment and finite element analysis of the mechanical behavior of steel tube-reinforced concrete composite shear walls with different axial-load ratios, Earthquake Engineering and Engineering Dynamics, 35, 3, pp. 217-223, (2015)
  • [6] BAI Liang, XIE Pengfei, ZHOU Tianhua, Et al., Study on design method of axial force-moment capacity and sectional deformation capacity of steel tube cinfined high-strength concrete shear walls, Engineering Mechanics, 34, 11, pp. 175-183, (2017)
  • [7] YANG Guang, ZHAO Zuozhou, QIAN Jiaru, Et al., Experimental study on seismic behavior of a new type of concrete filled steel tube composite shear walls, Building Structure, 44, 7, pp. 93-98, (2014)
  • [8] ZHANG Zhen, CHEN Ming, GONG Shunfeng, Et al., Experimental study on seismic behavior of interval concrete-filled steel tube composite shear wall, Journal of Building Structures, 41, 11, pp. 51-60, (2020)
  • [9] FANG Xiaodan, WEI Hong, LIU Qinghui, Experimental study on seismic behavior of shear walls with steel tube-confined high strength concrete, Journal of Building Structures, 36, 9, pp. 1-8, (2015)
  • [10] XIAO Xuwen, CAO Zhiwei, LIU Xing, Et al., Experimental study on seismic performance of precast shear wall with unconnected vertical distributed reinforcements, Building Structure, 51, 17, pp. 5-9, (2021)
123