建筑结构学报2017，Vol.38Issue(4)：45-53,9.DOI:10.14006/j.jzjgxb.2017.04.006
钢筋套筒挤压连接装配整体式梁柱中节点抗震性能试验研究
Experimental study on seismic behavior of assembled monolithic beam-column interior joints with rebar spliced by pressed sleeve
赵作周 1韩文龙 1钱稼茹 1刘时伟 2王悦媛1
作者信息
- 1. 清华大学土木工程安全与耐久教育部重点实验室,北京100084
- 2. 内蒙古蒙西工程设计有限公司,内蒙古呼和浩特010000
- 折叠
摘要
Abstract
To study the seismic behavior of assembled monolithic beam-column interior joints with rebar spliced by pressed sleeve,quasi-static tests of two assembled monolithic interior joints and one cast-in-place interior joint were carried out.The crack and failure process of the specimens were observed.Further analysis was conducted to investigate the seismic behavior,such as the hysteretic characteristic,bearing capacity,deformation capacity,and rebar strain development process.The test results indicate that specimens with shear failure in the joint core area or flexural failure at the beam fixed end all fail in the expected failure modes.The failure process,crack patterns and major seismic behavior indexes of the assembled monolithic joint and the cast-in-place joint with the expected shear failure in the joint core area are basically consistent.The measured load-carrying capacity of the assembled monolithic joints,which fail in shear mode in the joint core area and flexural mode at the beam fixed end,respectively are 1.62,1.31 times as large as the calculated capacity according to the formulas in the current design code.The equivalent ultimate inter-story drift ratios of the precast assembled monolithic joints are 1/26 and 1/27.After the test and removal of concrete,no cracks and rebar slippage were observed at the sleeve,indicating that the pressed sleeve splice can transfer the tensile and compressive force of rebars effectively.关键词
叠合梁-预制柱装配整体式中节点/后浇段/钢筋套筒挤压连接/拟静力试验/抗震性能Key words
composite RC beam-precast column monolithic interior joint/post-cast strip/rebar spliced by pressed sleeve/quasi-static test/seismic behavior分类
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赵作周,韩文龙,钱稼茹,刘时伟,王悦媛..钢筋套筒挤压连接装配整体式梁柱中节点抗震性能试验研究[J].建筑结构学报,2017,38(4):45-53,9.
