波形钢腹板钢-混凝土简支组合箱梁抗弯承载力分析  

Analysis of the flexural bearing capacity of simply supported steel-concrete composite box girders with corrugated steel webs

作　　者：周旺保[1,2] 许添鑫 谭志化 钟天璇 刘韶辉 蒋丽忠 ZHOU Wangbao;XU Tianxin;TAN Zhihua;ZHONG Tianxuan;LIU Shaohui;JIANG Lizhong(School of Civil Engineering,Central South University,Changsha 410075,China;National Engineering Laboratory for High Speed Railway Construction,Central South University,Changsha 410075,China;Shenzhen Metro Construction Group Limited Company,Shenzhen 518000,China)

机构地区：[1]中南大学土木工程学院,湖南长沙410075 [2]高速铁路建造技术国家工程实验室,湖南长沙410075 [3]深圳地铁建设集团有限公司,广东深圳518000

出　　处：《铁道科学与工程学报》2021年第8期2089-2096,共8页Journal of Railway Science and Engineering

基　　金：国家自然科学基金联合基金资助项目(51778630,52078487,U1934207);湖南创新型省份建设专项经费资助项目(2019RS3009);中央高校基本科研业务费专项资金资助项目(502501006)。

摘　　要：为研究波形钢腹板钢-混凝土简支组合箱梁的抗弯受力性能,以剪力连接度为参数,设计3榀波形钢腹板组合箱梁的抗弯试验,并根据试件模型建立波形钢腹板组合箱梁精细有限元数值分析模型。将试验结果与有限元数值计算结果进行比较,证明了数值分析模型的有效性。在此基础上,利用幂函数插值方法,建立任意剪力连接度下波形钢腹板钢−混凝土简支组合箱梁的抗弯承载力计算公式。以剪力连接度和腹板高度为变量,将理论公式计算结果分别与有限元数值计算结果和试验结果进行比对,验证了本文所提出公式的有效性。To study the bending resistance of steel-concrete composite box girders with corrugated steel webs,the flexural test of steel-concrete composite box girders with corrugated steel webs was designed with the shear connection as the parameter,and the finite element analysis model of the composite box girders was established based on the specimen models.The numerical analysis model was demonstrated to be effective by comparing the experimental data with the finite element numerical calculation results.On this basis,by using the power function interpolation method,the formula for calculating the flexural bearing capacity of simply supported steel-concrete composite box girders with corrugated steel webs at any shear connection was established.By taking the shear connection and the height of the web as variables,the theoretical formula calculation results were compared with the finite element numerical calculation and experimental results respectively,and the validity of the theoretical formula proposed in this paper was verified.

关 键 词：波形钢腹板 组合箱梁 剪力连接度 抗弯承载力 理论公式 

分 类 号：TU398.9[建筑科学—结构工程]