钢筋混凝土板受冲切承载力对比分析  

COMPARATIVE ANALYSIS OF PUNCHING SHEAR CAPACITY FOR REINFORCED CONCRETE SLAB

作　　者：史庆轩[1] 李博宇[1] 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055

出　　处：《工业建筑》2013年第9期77-82,100,共7页Industrial Construction

基　　金：国家自然科学基金项目(51178380;50978125);教育部高等学校博士学科点专项基金项目(20116120110004)

摘　　要：主要对比中国规范(GB 50010—2010)、欧洲规范(EN 1992-1-1:2004)和美国规范(ACI 318-08)中关于钢筋混凝土板受冲切承载力的规定,并通过算例和试验数据对比分析了混凝土强度、荷载面积形状与尺寸、纵筋配筋率、抗冲切钢筋布置对各国规范冲切承载力的影响。根据国内外423个钢筋混凝土板对称冲切试验结果,对各国规范冲切承载力计算值与试验值进行对比,由于欧洲规范考虑纵筋配筋率对承载力的影响,计算结果较为合理且数值最高,中国则最低。A comparison of the provisions for punching shear capacity calculations of reinforced concrete slab was studied based on China code（GB 50010 -2010） , ACI 318 -08 and EN 1992 - 1 - 1：2004. The effects of concrete strength, shape and dimensions of loading, longitudinal reinforcement ratio, reinforcement lagout on the punching shear capacity were studied. According to experimental results of 423 specimens, calculated values and experimental values of the punching shear capacity were compared and analyzed for different codes. The results indicate that because of the consideration of longitudinal reinforcement ratio＇ s effect on punching failure capacity in Europe code, the calculated values of Europe code are more reasonable, and are the highest ones, and those by China code are the lowest ones.

关 键 词：钢筋混凝土板 冲切承载力 对比分析 规范 

分 类 号：TU375[建筑科学—结构工程]