简支变连续刚构T梁桥施工仿真分析  

Construction simulation analysis of a simply-supported to continuous rigid-frame T-beam bridge

作　　者：唐杨 王国炜 亓兴军 TANG Yang;WANG Guo-wei;QI Xing-jun(Countryside Highway Administration Bureau of Wufeng Tujia Autonomous County,Yichang 443413,China;Jinan Jinqu Road Survey Design Research Co.,Ltd.,Jinan 250101,China;School of Transportation Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]五峰土家族自治县农村公路管理所,湖北宜昌443413 [2]济南金衢公路勘察设计研究有限公司,山东济南250101 [3]山东建筑大学交通工程学院,山东济南250101

出　　处：《河南城建学院学报》2022年第1期7-12,共6页Journal of Henan University of Urban Construction

摘　　要：以湖北省五峰土家族自治县某简支变连续刚构T梁桥为工程背景,采用Midas Civil建立梁格模型进行施工过程分析,结果表明:简支变连续刚构T梁桥的施工应力满足规范要求,但施工过程中法向拉、压应力较大,应加强施工过程中的应力监测;边梁的法向拉、压应力值通常大于中梁,跨中截面和支点截面是应力监控的重点部位;鉴于简支变连续刚构T梁桥在施工过程中的应力值偏大,在设计时需要满足纵向钢筋的最小配筋率要求。With a simply-supported to continuous rigid-frame T-beam bridge in Wufeng Tujia Autonomous County,Hubei Province as the engineering background,Midas Civil was used to establish a grid model for construction process analysis.The analysis results show that the construction stress of the simply-supported to continuous rigid-frame T-beam bridge meets the requirements of the specification,but the normal tensile and compressive stresses during the construction process are relatively large,and the stress monitoring during the construction process should be enhanced.The normal tensile and compressive stress values of the side beams are usually greater than those of the middle beam,and the mid-span section and the fulcrum section are the key positions for stress monitoring.In view of the fact that the stress value of the simply-supported to continuous rigid-frame T-beam bridge during the construction process is too large,the design needs to meet the minimum reinforcement ratio of the longitudinal steel bars.

关 键 词：公路桥梁 T梁桥 简支变连续刚构 施工监控 有限元分析 

分 类 号：U445[建筑科学—桥梁与隧道工程]