摘要
采用拟静力法制作了4个直榫木梁,分别对不同竖向荷载作用下有无碳纤维布加固时梁的抗震性能进行了分析。试验得出水平位移和水平力的滞回曲线、骨架曲线及刚度退化曲线。试验结果表明:碳纤维布加固能够显著降低节点位移,降低幅度可达20.1%,推迟达到屈服位移的时间,同时节点承受的水平极限荷载可增大71.9%,大幅度提升结构的安全性。竖向荷载越大,碳纤维布加固效果越明显。
The pseudo-static method was used to make four straight tenon wood beams.The seismic performance of beams with or without reinforcement of carbon fiber cloth was analyzed under different vertical loads.The hysteresis curve,skeleton curve and stiffness degradation curve of horizontal displacement and horizontal force were obtained.The results show that the reinforcement of carbon fiber cloth can significantly reduce the displacement of the joint by up to 20.1%.The time to reach the yield displacement is delayed.The horizontal ultimate load that the joint bears can increase by 71.9%.The safety of the structure is greatly improved.The greater the vertical load,the more obvious the effect of carbon fiber reinforcement.
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2018年第5期56-60,共5页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(51478004)
北京高等学校高水平人才交叉培养实培计划基金项目(XN003-29)
关键词
直榫木梁
碳纤维布
抗震性能
拟静力试验
straight tenon wood beam
carbon fiber reinforced plastic sheet
seismic performance
quasi-static test
