十字形钢筋混凝土柱的抗震性能数值分析  

Numerical Analysis of Seismic Performance for Cross-shaped Section Reinforced Concrete Columns

作　　者：滕振超[1,2] 赵誉翔 刘宇 赵添佳 TENG Zhen-chao;ZHAO Yu-xiang;LIU Yu;ZHAO Tian-jia(Civil Engineering and Architecture College, Northeast Petroleum University, Daqing 163318,China;Disaster Prevention, Reduction and Protection Engineering Provincial Laboratory, Daqing 163318,China)

机构地区：[1]东北石油大学土木建筑工程学院,大庆163318 [2]省高校防灾减灾与防护工程重点实验室,大庆163318

出　　处：《科学技术与工程》2020年第16期6554-6559,共6页Science Technology and Engineering

基　　金：国家自然科学基金项目(51578120);东北石油大学研究生创新科研项目(YJSCX2017-025NEPU)。

摘　　要：为了给该类柱的抗震设计提供依据,通过ABAQUS建立模型并验证了模型正确性,说明该模型能较好地描述试件的受力性能。研究了十字形钢筋混凝土柱抗震性能与轴压比及配筋率的关系。结果表明:随着配筋率的增大,峰值荷载越大,耗能能力以及延性性能更优越,刚度退化得到延缓;随着轴压比的减小,虽然峰值荷载降低,但其耗能能力和延性性能更优越,刚度退化得到延缓。可见在允许范围内减小轴压比或增大配筋率,可以提高试件的抗震性能。In order to provide the basis for the seismic design of this kind of column,a model was established with the correctness was verified by ABAQUS.The relationship between seismic performance,axial compression ratio and reinforcement ratio of cross-shaped reinforced concrete(RC)column was also studied.The results show that with the increase of the reinforcement ratio,the greater the peak load,the superior the energy dissipation capacity and ductility,and the stiffness degradation is delayed.With the decrease of axial compression ratio,although the peak load decreases,its energy dissipation capacity and ductility performance are superior,and the stiffness degradation is delayed.It can be seen that reducing the axial compression ratio or increasing the reinforcement ratio within the allowable range can improve the seismic performance of the specimens.

关 键 词：十字形柱 轴压比 配筋率 抗震设计 

分 类 号：TU375.5[建筑科学—结构工程]