平面外弯剪作用下双钢板混凝土简支梁挠度计算方法  

A Calculation Method of Deflection of Simply Supported Steel-Concrete-Steel(SCS)Sandwich Beam Under Out-of-Plane Load

作　　者：朱天怡 宋晓冰[1] ZHU Tianyi;SONG Xiaobing(School of NaVal Architecture,Dcan&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240

出　　处：《徐州工程学院学报（自然科学版）》2023年第1期34-41,共8页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家科技重大专项课题(2011ZX06002-001)。

摘　　要：针对双钢板-混凝土组合梁正常使用状态下梁的挠度计算问题,以承受弯剪作用的SCS组合简支梁为研究对象,建立弯剪效应计算模型,并利用分层壳法和三折线模型分别计算组合梁的弯曲挠度和剪切挠度.模型计算结果与JZ系列、WS系列试验结果拟合较好,同时将计算模型与《混凝土结构设计规范》中的挠度验算方法进行对比,发现该模型对剪跨比在1.5~3的SCS组合梁挠度拟合更为准确.Aiming at the deflection calculation of a steel-concrete-steel(SCS)sandwich beam under normal use,the bending-shear effect calculation model of SCS is established.The bending deflection and shear deflection of composite beam are calculated by using layered shell method and trilinear model.The model calculation results fit well with the test results of JZ series and WS series.At the same time,the calculation model is compared with the deflection checking method in the Design Code for Concrete Structures,and it is found that the bending-shear effect model fits the deflection of SCS beams more accurately with shear span to depth ratio in the range of 1.5~3.

关 键 词：双钢板混凝土组合梁 分层壳法 三折线模型 

分 类 号：TU398.9[建筑科学—结构工程]