钢筋混凝土抗震框架节点传力机构分析  

Analysis on the Force-Transferring Mechanism of the Earthquake-Resistant Reinforced Concrete Frame Joints

作　　者：傅剑平[1] 游渊[1] 白绍良[1] 

机构地区：[1]重庆建筑大学建筑工程学院

出　　处：《重庆建筑大学学报》1996年第2期43-52,共10页Journal of Chongqing Jianzhu University

基　　金：国家教委博士点专项资助

摘　　要：在总结国内外近年来大量研究成果的基础上，结合本文作者在节点试验研究中的体会，全面分析了框架节点中的传力特征，明确指出除斜压杆机构和桁架机构外还存在约束机构的这一事实。并讨论了这三种机构对节点核心区混凝土、箍筋、竖向钢筋的受力和对节点失效或破坏特征的影响。其中还着重讨论了核心区泥凝土斜压杆的受力特点以及导致其破坏的各种因素。这些分析为建立更加合理的抗震框架节点设计准则提供了理论依据。On the basis of a summary of achievements from a large quantity of experimental studies both at home and abroad, in combination with the authors'experience in the experimental works on the reinforced concrete frame joints, their force-transferring characteristics are fully studied. The important fact that there is also a confined mechanism besides the inclined compressive strut and the truss mechanisms,is clearly pointed out. The influences of the three mechanisms upon the mechanical behaviors of the joint core concrete, the transverse and the vertical reinforcements,as well as upon the failure characteristics of the joint are also explored. Mechanical behaviors of the inclined concrete compressive strut and the factors causing its failure are specially discussed. These analyses provide theoretical bases for establishing more rational earthquake-resistant design criterion for reinforced concrete frame joints.

关 键 词：钢筋混凝土 抗震结构 框架 节点 传力机构 

分 类 号：TU375.4[建筑科学—结构工程]