高强无腹筋梁抗剪承载力分析  

Analysis on shear strength of high-strength concrete beams without web reinforcement

作　　者：刘大钢[1] 叶献国 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]安徽土木工程结构与材料省级实验室,安徽合肥230009

出　　处：《安徽水利水电职业技术学院学报》2012年第3期1-4,共4页Journal of Anhui Technical College of Water Resources and Hydroelectric Power

基　　金："十一五"国家科技支撑课题"高强高性能混凝土结构性能研究"(2008BAE61B05-04)

摘　　要：收集了国内外134个集中荷载下高强无腹筋简支梁的抗剪试验数据,将实测承载力与中国国标GB50010-2010和美国的ACI318-08的预测结果进行了对比,结果表明:2国标准对于计算高强无腹筋梁安全度不够。GB50010-2010预测大剪跨比、有效截面高度偏大,纵筋率偏小的高强钢筋混凝土构件,可靠度偏低。Experimental date of 134 high-strength concrete beams without web reinforcement in sheal failure was collected. The testing results are compared with failure shear strength calculated by GB50010-2010 and ACI318-08. The results showed that Code equation are unsafe for high-strength concrete beams without web reinforcement. Beside, China Code overestimate shear strength of beams of larger span-to-depth ratios, lower longitudinal reinforcement ratios and larger effective depth.

关 键 词：高强混凝土 无腹筋梁 抗剪强度 

分 类 号：TU375[建筑科学—结构工程]