曲线连续T型刚构桥应力优化  

Stress optimization of the curve continuous T-shaped rigid frame bridge

作　　者：范琴锋[1] 

机构地区：[1]中铁四院集团广州设计院有限公司,广东广州510600

出　　处：《山西建筑》2016年第4期176-177,共2页Shanxi Architecture

摘　　要：以穗莞深城际铁路新塘站特大桥为背景,采用Midas civil 2012建立该桥的空间有限元模型,并对调整前后的预应力钢束张拉控制应力进行模拟计算,结果表明:调整曲线梁桥内外侧预应力钢束张拉控制应力,可明显减小曲线梁桥截面内外侧的应力差。This paper takes Xintang station grand bridge of Guangzhou Dongguan Shenzhen intercity railway as the background,using Midas civil2012 to build space finite element model of the bridge. Simulation calculation is carried out on tension control stress for prestressing of adjustment before and after adjustment,the results show： adjusting the tension control stress of internal and external prestressing tendons of curved girder bridge can significantly reduce the stress difference of the section of curved girder bridge.

关 键 词：T型刚构桥 曲线梁桥 应力优化 

分 类 号：U448.231[建筑科学—桥梁与隧道工程]