沈阳大学学报（自然科学版）2018，Vol.30Issue(1)：74-79,6.
不同跨径下收缩徐变对拓宽桥梁的影响
Influence of Shrinkage and Creep on Broadening Bridge under Different Span
郭森 1孟凡镇 2孟园英 1孙延飞1
作者信息
- 1. 长安大学 公路学院,陕西 西安 710064
- 2. 深圳高速工程顾问有限公司,广东 深圳 518049
- 折叠
摘要
Abstract
In order to study the stress changes of old and new bridge structures due to the uncoordinated deformation of old and new bridges,finite element software was used to establish bridge models with different span diameters,and the influence of concrete shrinkage and creep on different span simple-supported T-beams was studied.The research shows that the shrinkage and creep effect of the spliced seam structure has a great influence on the structure of old and new bridges, and the stress caused by the shrinkage and creep is large,w hich easily leads to the cracking of the spliced seam structure.T he internal forces caused by the shrinkage and creep of new and old bridge girders at the spliced seams will increase with the increase of span diameter.This is a guide to the expansion of the old bridge project.关键词
收缩/徐变/边梁/附加应力/裂缝/受力性能Key words
shrinkage/creep/side beam/additional stress/crack/force-bearing property分类
建筑与水利引用本文复制引用
郭森,孟凡镇,孟园英,孙延飞..不同跨径下收缩徐变对拓宽桥梁的影响[J].沈阳大学学报（自然科学版）,2018,30(1):74-79,6.
