为实现“强柱弱梁”在RC框架梁端楼板设置合理缝长的研究  

Research of Designing Reasonable Slot Length for Beam-End-Slab in RC Frame Structure to Achieve “Strong Column and Weak Beam”

作　　者：肖疆[1] 尹保江[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《工程抗震与加固改造》2016年第5期121-125,共5页Earthquake Resistant Engineering and Retrofitting

摘　　要：本文从减少现浇板对框架梁端部刚度和承载力影响的"减法"思路入手,通过MSC.MARC有限元软件对RC框架结构梁端楼板设置不同缝长的梁柱中节点、边节点、角节点模型进行分析,总结了设置何种缝长能有效的实现强柱弱梁,并在此基础上提出设缝长度与梁跨度之间合理比例的建议。This paper is starting from an idea of subtraction： reducing the impact from cast-in-situ slab to beam＇ s rigidity and bearing capacity. Interior joints,exterior joints and corner joints with different slot lengths in beam-end-slab of RC frame structure are analyzed by the MSC. MARC finite element software. The most effective way to achieve＂strong column and weak beam＂is summarized,and the advice for rational ratio of slot length and beam span is presented.

关 键 词：RC框架结构 强柱弱梁 梁端楼板设缝长度 有限元分析 

分 类 号：TU375[建筑科学—结构工程]