基于空间梁格法的大跨度变宽鱼腹式箱梁受力分析  

StressAnalysis of Long-span and Broaden Fish-bellied Box Girder Based on Grillage Method

作　　者：樊星辰 岳仁辉 FAN Xing-chen;YUE Ren-hui(HEFEI Urban Planning&Design Institute)

机构地区：[1]合肥市规划设计研究院,安徽合肥230000

出　　处：《黑龙江交通科技》2020年第12期76-77,共2页Communications Science and Technology Heilongjiang

摘　　要：城市高架桥梁设计在满足安全性,经济性,耐久性的同时需兼顾景观需求。以合肥市北二环快速化改造工程大跨度变宽鱼腹式箱梁为背景,通过建立空间梁格模型,实现各腹板构件受力的精确模拟,并结合现行规范进行验算分析。结果表明各腹板内力分配不均,进行空间精细化分析具有工程必要性。The design of urban viaduct should meet the requirements of landscape while meeting the requirements of safety,economy and durability.Taking the large-span and broaden fish-bellied box girder of the North Second Ring Rapid Reconstruction Project in Hefei as the bac kground,an accurate simulation of the stress of each web member is achieved by establishing Grillage Method model,and a check calculation analysis is carried out in combination with the current specifications.The results show that the internal force distribution of each web is uneven,and it is necessary to carry out detailed spatial analysis.

关 键 词：鱼腹式箱梁 梁格法 变宽箱梁 

分 类 号：U442[建筑科学—桥梁与隧道工程]