混凝土简支梁斜截面抗剪强度统一表达式的研究  

Investigation on Shear Strength of the Oblique Section of Concrete Simply Supported Beam

作　　者：张开敬[1] 

机构地区：[1]西南交通大学土木工程学院,四川成都610031

出　　处：《西南交通大学学报》2000年第1期1-6,共6页Journal of Southwest Jiaotong University

基　　金：铁道部建设司科技发展基金

摘　　要：分析了影响混凝土简支梁抗剪强度的主要因素,优选了主要参数,提出了梁混凝土和箍筋抗剪能力的表达式。通过对专题组试验结果以及国内外871片梁的试验数据进行回归和综合分析,提出了混凝土简支梁抗剪强度的统一表达式,现已被采纳为新《铁路桥规》抗剪强度的条文。The main parameters affecting the shear strength of the reinforced concrete (RC), partial prestressed concrete (PPC) and prestressed concrete (PC) simply supported beams are analyzed and optimized; and the expression formula for the shear strengths of the concrete and the hooped reinforcement are put forward respectively. Based on the experimental results obtained by the project research team and the regression analysis of the data tested in 871 beams from home and abroad, the united formulas for calculating the shear strengths of the RC, PPC and PC simply supported beams are presented, which have been adopted as the shear provision of “China Railway Bridge Code”.

关 键 词：混凝土简支梁 抗剪强度 斜截面 箍筋抗剪能力 

分 类 号：TU375.101[建筑科学—结构工程]