- 摘 要
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(中国建筑科学研究院 北京 100013)
【提要】 对6种国外规范(DIN 1045(88),EN1992,Model Code 90,FIPRecommendations 1996,BS8110—97,ACI318—02)和国内规范(GB50010—2002)的冲切承载力计算公式进行了详细的阐述与计算比较,选取三种规范(GB50010—2002,ACI318—02,欧洲EN1992)进行相应的冲切影响因素在计算公式中考虑差异比较。通过比较分析可知,国外规范考虑不同的混凝土强度取值、纵筋配筋率等,其计算值与实际冲切破坏更加吻合。
【关键词】 冲切承载力 钢筋混凝土 规范 比较
Discussion on Calculating Punching Shear Strength of Reinforced Concrete Slabs and Footings According to Different Codes/Liu Liqu(China Academy of Building Research,Beijing 100013,China)
Abstract:To calculating punching shear strength,six codes including DIN 1045(88),EN1992,Model Code 90,FIPRecommendations 1996,BS8110—97,ACI318—02 and our country"s code(GB50010—2002) are chosen to discuss and compare. Discussions according to different codes are shown that foreign codes" provisions are always directly dependent on the recent research result of punching tests,and in good agreement with a wide range of experimental data.
Keywords:punching shear strength;reinforced concrete;code;compari