摘要
该文对光圆钢筋配筋RC框架结构在锈蚀环境下的抗震性能进行分析,提出一种可以考虑光圆钢筋锈蚀引起的材料性能退化及钢筋-混凝土黏结滑移性能退化的节点宏单元模型。通过对已有试验结果进行模拟,验证所提出节点模型的合理性。以新西兰奥克兰市的一栋光圆钢筋配筋的锈蚀RC结构为例,基于SeismoStruct有限元软件,采用所提出的节点模型建立算例结构完好及锈蚀后的有限元模型。分别采用静力Pushover方法及动力时程分析法对算例结构的抗震性能进行分析。分析结果表明:光圆钢筋锈蚀引起的RC框架结构抗震性能退化幅度要高于变形钢筋。
This paper analyze the seismic performance of RC frames with corroded plain reinforcements.A macro-model is proposed for beam-column joints with considering corrosion-induced deterioration of material properties and reinforcement-concrete bond slip performance.Through simulating the available test data,the proposed macro-model is validated.A corroded RC frame structure using plain reinforcement is taken as the study case.Based on the SeismoStruct software,the finite element models are developed for the intact and corroded case frames.Both static pushover and dynamic time-history analysis methods are used to examine the seismic performance for the case frame.The results show that the corroded plain reinforcement can cause more serious deterioration for structural performance against earthquakes than the corroded deformation reinforcement.
作者
代旷宇
于晓辉
吕大刚
Nataraj Sunil
Hogan Lucas
Dai Kuangyu;Yu Xiaohui;Lu Dagang;Nataraj Sunil;Hogan Lucas(Key Lab of Structure Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,Harbin 150090,China;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disaster of the Ministry of Industry and Information Technology,Harbin Institute of Technology,Harbin 150090,China;University of Auckland,Auckland 1023,New Zealand)
出处
《土木工程学报》
EI
CSCD
北大核心
2020年第S02期53-60,共8页
China Civil Engineering Journal
基金
国家自然科学基金面上项目(51778198,51678209)
国家留学基金委博士生联合培养项目(201806120230)
