摘要
借助震损模拟和低周反复荷载试验研究了外包钢套及炭纤维增强聚合物对震损型钢混凝土柱的加固效果,基于试验拟合法构建了震损型钢混凝土柱加固后的恢复力模型并对其正确性进行了验证。结果表明,外包钢套或炭纤维增强聚合物加固均能使震损型钢混凝土柱重新恢复抗震能力,利用所建恢复力模型对柱试件在低周反复荷载作用下的荷载-位移关系进行模拟的结果与相应试验值基本吻合。
The reinforcement effects of enveloped steel jackets and carbon fiber reinforced polymers on the seismic-damaged SRC columns were investigated via seismic-damage simulation and low-cyclic reversed loading test,a restoring force model of seismic-damaged SRC columns after reinforcement was established by test-fitting method and the validity of the model was verified.The results show that the anti-seismic capability of seismic-damaged SRC columns can be restored by enveloped steel jackets or carbon fiber reinforced polymers reinforcement,and the simulation results of load-displacement relation of columns under low-cyclic reversed loading by using the proposed restoring force model tally well with the corresponding tests results.
作者
彭胜
许成祥
Peng Sheng;Xu Chengxiang(College of City Construction, Wuhan University of Science and Technology, Wuhan 430065, China)
出处
《武汉科技大学学报》
CAS
北大核心
2021年第5期388-393,共6页
Journal of Wuhan University of Science and Technology
基金
国家自然科学基金资助项目(51478048)
湖北省教育厅科学技术研究计划资助项目(Q20201101).
关键词
型钢混凝土柱
震损
恢复力模型
外包钢套
炭纤维增强聚合物
低周反复荷载试验
弹塑性分析
steel-reinforced concrete column
seismic-damage
restoring force model
enveloped steel jacket
carbon fiber reinforced polymer
low-cyclic reversed loading test
elastic-plastic analysis
