摘要
为研究钢筋-纤维增强复材筋梁式转换层结构的抗震性能,进行了4榀双肢短肢剪力墙梁式转换层结构低周反复加载试验。对比分析了不同配筋形式梁式转换层结构在低周反复荷载作用下的破坏过程、滞回特性、骨架曲线及各构件加劲材料的应变分布规律,探讨了转换梁的刚度退化和延性性能。试验结果表明：1） 4个试件的屈服破坏机制均属于延性破坏; 2）钢筋-纤维增强复材筋梁式转换层结构的承载能力优于全钢筋试件; 3）钢筋-纤维增强复材筋转换梁结构延性系数均大于3,具有较好的抗震性能; 4）钢筋-纤维增强复材筋梁式转换层结构破坏模式和刚度退化趋势与全钢筋试件基本一致。
In order to study the seismic behavior of beam-type transfer story structure with composite reinforcement of steel and FRP bars,the quasi-static loading test was conducted on four specimens of double-short-pier shear-wall supported on frame structure. The failure process,the hysteretic characteristics,the skeleton curves,and the strain curves of CFRP under quasi-static loading were compared and analyzed. The stiffness degradation and ductility of the specimens were discussed. The results showed that： 1） The yielding mechanism of all specimens presented ductile failure. 2） The bearing capacity of beam-type transfer story structure with composite reinforcement of steel and FRP bars was better than that of reinforced concrete beam-type transfer story structure. 3） The ductility factor of the beamtype transfer story structure with composite reinforcement of steel and FRP bars was greater than 3,it showed a good seismic behavior. 4） The failure mode and the trend of stiffness degradation of the structures with composite reinforcement of steel and FRP bars were consistent with the reinforced concrete specimen.
作者
罗文
林志昆
潘水艳
曹少华
LUO Wen;LIN Zhikun;PAN Shuiyan;CAO Shaohua(Research Institute for National Defense Engineering of Academy of Military Science PLA China,Luoyang 471023,China;Henan Key Laboratory of Special Protective Materials,Luoyang 471023,China;Troops 75240,PLA,Huizhou 516000,China)
出处
《工业建筑》
CSCD
北大核心
2018年第10期101-109,共9页
Industrial Construction
基金
河南省科技创新人才计划(154200510028)
