Experimental study on the seismic behavior of precast concrete beam-column joints with connection defects

被引：0
|
作者：
Cao Z.-J. [1 ]
Li Q.-W. [1 ]
机构：
[1] Department of Civil Engineering, Tsinghua University, Beijing
来源：
Gongcheng Lixue/Engineering Mechanics | 2021年 / 38卷 / 11期
关键词：
Beam-column joint; Connection defect; Experiment; Precast concrete structure; Seismic performance;
D O I：
10.6052/j.issn.1000-4750.2020.11.0788
中图分类号：
学科分类号：
摘要：
To analyze the influence of connection defects on the seismic behavior of precast concrete frame beam-column joints, three typical defects in the core area of precast beam-column joints were considered. Five precast concrete beam-column joints and one cast-in-situ concrete beam-column joint were tested. The failure pattern, hysteretic characteristics, skeleton curve, stiffness degradation and energy dissipation capacity were analyzed. The nonlinear finite element analysis program OpenSees was used to simulate the precast beam-column joints. The bond stress-slip relationships and the shear behavior of the joint area were considered in the joint model. The results indicate that the concrete casting defects in the core area had great influence on the strength and energy dissipation capacity, that the defect of the rough surface and of the grouting layer at the bottom of the column had little impact on the seismic behavior of the joint, and that the weakening of the bond of steel bars can be effectively simulated by considering the bond stress-slip relationships and the anchorage length in the finite element model. The model can be used for further structural seismic performance analyses. © 2021, Engineering Mechanics Press. All right reserved.
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页码：134 / 146and159
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共 25 条
  • [1] Priestley M., Overview of PRESSS research program, PCI Journal, 36, 4, pp. 50-57, (1991)
  • [2] Liu Xiaochen, Wang Xin, Li Hongtao, Et al., Introduction to prefabricated concrete building, (2018)
  • [3] Cai Jianguo, Feng Jian, Wang Zan, Et al., Seismic behavior of frame comprised of precast prestressed concrete components, Acta Scientiarum Naturalium Universitatis Sunyatseni, 48, 2, pp. 136-140, (2009)
  • [4] Vidjeapriya R, Jaya K P., Experimental study on two simple mechanical precast beam-column connections under reverse cyclic loading, Journal of Performance of Constructed Facilities, 27, 4, pp. 402-414, (2013)
  • [5] Parastesh H, Hajirasouliha I, Ramezani R., A new ductile moment-resisting connection for precast concrete frames in seismic regions: An experimental investigation, Engineering Structures, 70, 9, pp. 144-157, (2014)
  • [6] Zou Yun, Lin Hui, Ma Weiqiang, Influence factors analysis on aseismic behavior of prefabricated frame joints with capacity of self-centering, Engineering Mechanics, 32, pp. 72-77, (2015)
  • [7] Guan D, Guo Z, Xiao Q, Et al., Experimental study of a new beam-to-column connection for precast concrete frames under reversal cyclic loading, Advances in Structural Engineering, 19, 3, pp. 529-545, (2016)
  • [8] Choi H K, Choi Y C, Choi C S., Development and testing of precast concrete beam-to-column connections, Engineering Structures, 56, pp. 1820-1835, (2013)
  • [9] Maya L F, Zanuy C, Albajar L, Et al., Experimental assessment of connections for precast concrete frames using ultra high performance fibre reinforced concrete, Construction & Building Materials, 48, pp. 173-186, (2013)
  • [10] Deng Mingke, Ma fudong, Ye Wang, Et al., Experimental study on aseismic behavior of locally used HDC assembled frame beam-column joints, Engineering Mechanics, 36, 9, pp. 68-78, (2019)
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