钢-混凝土简支组合梁的恢复力模型  

RESEARCH ON RESTORING FORCE MODEL OF STEEL-CONCRETE COMPOSITE BEAMS

作　　者：蒋丽忠[1] 余志武[1] 曹华[1] 刘仲武[1] 

机构地区：[1]中南大学铁道校区土木建筑学院,长沙410075

出　　处：《工业建筑》2007年第11期85-87,96,共4页Industrial Construction

基　　金：国家自然科学基金资助项目(50208018;50438020)

摘　　要：根据5根不同剪力连接度钢-混凝土简支组合梁在低周竖向反复荷载作用下的恢复力特性试验结果,对不同剪力连接度组合梁的屈服荷载、屈服挠度、极限荷载、极限挠度及平台荷载进行分析,建立简支钢-混凝土组合梁正向加载和反向加载的骨架曲线模型,并提出统一的实用计算公式,根据试验结果,建立简支组合梁的荷载-挠度恢复力模型的滞回规则。According to the test results of seismic resistant performance of five steel-concrete composite beams under cyclic point concentrated loads, it was analyzed that the yield load and deflection, ultimate load and deflection, as well as, the flat load, the framework curve model of steel-concrete composite beams under positive and negative load were proposed. The easily applied uniform expressions were also shown. According to the experimental results, the hysteretic rule of load- deflection and restoring force model of steel-concrete beams were established.

关 键 词：钢-混凝土组合梁 恢复力特性 滞回规则 骨架曲线 试验研究 

分 类 号：TU398.9[建筑科学—结构工程]