V形支撑连续梁桥0#块有限元分析及施工控制  

Finite Element Analysis and Construction Control of 0#Block of V-shaped Braced Continuous Beam Bridge

作　　者：王国炜 亓兴军 张国梁 WANG Guowei;QI Xingjun;ZHANG Guoliang(Jinan Jinqu Road Survey Design Research Co.,Ltd.,Jinan Shandong 250101,China;School of Transportation Engineering,Shandong Jianzhu University,Jinan Shandong 250101,China;Shandong Road and Bridge Engineering Design Consulting Co.,Ltd.,Jinan Shandong 250014,China)

机构地区：[1]济南金衢公路勘察设计研究有限公司,山东济南250101 [2]山东建筑大学交通工程学院,山东济南250101 [3]山东省路桥工程设计咨询有限公司,山东济南250014

出　　处：《盐城工学院学报（自然科学版）》2022年第1期40-47,共8页Journal of Yancheng Institute of Technology:Natural Science Edition

基　　金：山东省交通运输厅科技计划项目(2020B69)。

摘　　要：依托桂林龙门大桥新建工程项目,利用Midas/FEA建立0#块实体有限元模型,以Midas/Civil梁单元模型分析得到的各施工阶段0#块实体两侧截面内力为基础,基于圣维南原理对关键施工阶段进行实体有限元分析。通过0#块的应力监测数据,与有限元分析结果对比发现,实测值与理论值较为符合,保证了0#块在整个施工过程中的安全可靠。同时,通过0#块结构的应力分析和变形分析,得到带腹拱V形支撑0#块的受力特性,供设计及施工人员参考。Relying on the new construction project of Longmen Bridge in Guilin,the 0#block solid finite element model is established by MIDAS/FEA.Based on the section internal forces on both sides of the 0#block solid in each construction stage obtained by MIDAS/civil beam element model analysis,the solid finite element analysis of key construction stages is carried out based on Saint Venant principle.By comparing the stress monitoring data of 0#block with the finite element analysis results,it is found that the measured value is in good agreement with the theoretical value,which ensures the safety and reliability of 0#block in the whole construction process.At the same time,through the stress analysis and deformation analysis of 0#block structure,the stress characteristics of V-shaped support 0#block with web arch are obtained,which can be used as a reference for designers and constructors.

关 键 词：公路桥梁 施工控制 有限元分析 0#块 腹拱 V形腿 

分 类 号：TU311[建筑科学—结构工程]