不同腹板嵌入方式模拟对波形钢腹板组合箱梁建模精度的影响  

Simulation of Influences of Different Web Ennbedding Modes on Modeling Accuracy of Corrugated Steel Web Connposite Box Girder

作　　者：刘欢[1] 

机构地区：[1]铁道第三勘察设计院集团有限公司,天津市300142

出　　处：《城市道桥与防洪》2017年第1期137-139,共3页Urban Roads Bridges & Flood Control

基　　金：国家自然科学基金项目(51368032)

摘　　要：为探究不同腹板嵌入方式模拟对波形钢腹板组合箱梁建模精度和效率的影响,利用ANSYS建立三种连接方式下的有限元模型,分析其在荷载作用下的挠度、应力、剪力滞效应和自振频率,并将有限元模拟结果与现场模型试验实测数据对比,以找出最符合实际的连接方式。结果表明,MPC方式的建模效率明显高于共节点式与嵌入式,且能够满足精度要求,是最符合实际腹板嵌入连接的方式。该研究可为波形钢腹板组合箱梁有限元仿真提供参考。In order to study the simulation of the influences of the different web embedding modes on the modeling accuracy and efficiency of the corrugated steel web composite box girder,the ANSYS is used to establish three connection modes of finite element models to analyze the deflections stresses shear lag effects and natural vibration frequencies under the load action.The finite element simulation results are compared with the actual data of field model test to find the most actual connection mode The result shows that the modeling efficiency of MPC mode is obviously higher than the common node mode and the embedding mode,and can satisfy the accuracy requi rements The MPC mode is the opti mal mode for the embeddi ng connection of webs This study can provide a reference for the finite element simulation of the composite box girder with corrugated steel webs

关 键 词：波形钢腹板 剪力连接件 有限元模拟 试验对比 

分 类 号：U441[建筑科学—桥梁与隧道工程]