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陈俊玮，刘汉赋，袁焕鑫，胡晓斌
（ 武汉大学 土木建筑工程学院 ，湖北 武汉 430072 )

摘   要 ：针对用于地铁车辆段检修库的新型装配式混凝土空心检修柱，分别制作预制混凝土空心柱 、预制混凝土实心柱及现浇混凝土空心柱试件，采用拟静力试验及有限元数值模拟，对其抗震性能进行对比研究。结果表明：试件破坏形态均为剪弯破坏，承载能力及退化性能较为接近，变形能力好，但装配式空心试件耗能能力及延性略差；对于装配式混凝土空心检修柱，可以将其截面简化成工字形，采用规范中的公式来计算承载力；与装配式混凝土实心柱相比，装配式混凝土空心柱可以大幅度节约材料，且基本上实现了“等同现浇 ”；当轴压比变大时，装配式混凝土空心柱水平承载力先变大后变小，耗能能力变差。

关键词：装配式混凝土空心柱 ；拟静力试验 ；抗震性能 ；数值模拟

中图分类号：TU375 . 3   

文献标志码：A    

文章编号：1005- 8249  (2024)  03- 0113- 07 
DOI：10. 19860/j.cnki.issn1005 - 8249.2024.03 .022

 

CHEN Junwei , LIU Hanfu , YUAN Huanxin , HU Xiaobin

(School of Civil Engineering , Wuhan University , Wuhan 430072 , China)

Abstract : To study seismic performance of the hollow precast concrete column used in the metro overhauling depot , three specimens including a hollow precast concrete column , a solid precast concrete column and a hollow cast - in - situ concrete column were constructed and investigated through pseudo - static test and finite element simulation. The results show that the failure modes of the specimens are all flexure - shear type. In addition , the bearing capacity and degradation performance are similar , and the deformation ability is good. However , the energy dissipation capacity and ductility of the hollow precast specimen is relatively poorer. For the hollow precast concrete column , the section can be simplified into an I - shaped one to compute the bearing capacity using the formulas in the code. Compared with the solid precast concrete column , the hollow one has a great advantage of saving materials while emulating the cast - in - situ one. As the axial compressive ratio increases , the bearing capacity of the hollow precast concrete column rises first and then drops while the energy dissipation capacity decreases. 

Keywords : hollow precast concrete column; pseudo - static test; seismic performance; numerical simulation

作者简介： 陈俊玮  (1998—) ,  男 ，硕士研究生 ，研究方向： 结构抗震。

通信作者： 胡晓斌  (1979—) ,   男 ，博士 ，教授 ，研究方向： 结构抗震。

收稿日期：2022- 12- 31