国内外规范关于钢筋混凝土板冲切承载力的比较  

Comparison of Punching Shear Strength of Reinforced Concrete According to Different Codes at Home and Abroad

作　　者：陈建伟 边瑾靓 苏幼坡 崔芳芮 

机构地区：[1]华北理工大学建筑工程学院,河北唐山063009 [2]河北省地震工程研究中心,河北唐山063009

出　　处：《河北联合大学学报（自然科学版）》2015年第4期74-82,共9页Journal of Hebei Polytechnic University:Social Science Edition

基　　金：国家自然科学基金项目(51278164);河北省自然科学基金项目(E2014209221)

摘　　要：由于钢筋混凝土板抗冲切破坏机理与性能的复杂性,各国规范关于冲切计算表达形式各异。文中选取我国GB 50010-2010规范与国外5种设计规范(ACI 318-08,EC4,CSA A23.3-04,DIN 1045-1,JSCE 15)进行对比分析。首先对各国钢筋混凝土板冲切承载力设计的表达式进行参数分析,结合算例进行对比(由于德国规范DIN1045-1与欧洲规范EC4差异性很小,算例选用两者中的欧洲规范)。结果表明,我国规范中未考虑配筋率这一重要指标,建议参照相关规范,予以完善修订。Owing to the complexity of punching shear resistance failure mechanism and performance of reinforced concrete slab,standards from different countries about punching computation expression are different.Chinese code GB 50010-2010 is compared with five foreign design codes(ACI 318-08,EC4,CSA A23.3-04,DIN 1045-1,JSCE 15)in the article.Firstly,parameter analysis is made on the expression of the design of punching shear capacity,then a comparison is carried out combining with an example(because of the little difference between German standard DIN1045-1and Eurocode EC4,eurocode is chosen in the example).The results show that Chinese code doesn't take the reinforcement ratio into consideration,and it is suggested to be revised and improved referring to relevant specifications.

关 键 词：冲切承载力 计算方法 板柱节点 设计规范 

分 类 号：TU375.2[建筑科学—结构工程]