受损RC梁的动静力刚度关系研究  

Study of the relationship between dynamic and static stiffness in damaged RC beam

作　　者：王长山[1] 张志谦[1] 金靖[1] 陈瑞雪[1] 刘晓珂[1] 

机构地区：[1]国核电力规划设计研究院,北京100095

出　　处：《山西建筑》2016年第2期18-20,共3页Shanxi Architecture

基　　金：国家核电技术公司员工自主创新项目专项资金资助(项目编号:SNP-KJ-CX-2013-8)

摘　　要：根据相似理论,建立了钢筋混凝土简支梁和钢筋混凝土梁式结构的静、动力相似模型,通过控制位移对梁式结构逐级加载,在不同损伤程度下,对模型梁作静、动力交叉试验,结合模型梁试验结果,建立了动静力刚度之间的经验公式,实现了由动力参数来预测梁式结构的静刚度,为钢筋混凝土梁式结构的快速检测与承载力评估提供了理论基础。According to the analogue principle,this paper setup the analogous modes in statics and kinetics of reinforced concrete beam. By loading step by step,the static and dynamic examinations have been done intimately with them models at different damage stages. From the trial of single beam,an empirical formula was established to express the relations of dynamic stiffness and static stiffness. The static stiffness of each single beam could be forecasted form dynamic parameters,it has provided theoretical and experimental bases for the development of the quickehecking method on the RC beam ultimate carrying capacity.

关 键 词：钢筋混凝土简支梁 动态测试 静力刚度 动力刚度 

分 类 号：TU311[建筑科学—结构工程]