铁道科学与工程学报2013，Vol.10Issue(2)：23-29,7.
酉水大桥大跨度连续箱梁桥斜交高墩日照温度效应分析
High skew pier sunlight temperature effect analysis of Youshui large span continuous box girder bridge
摘要
Abstract
On the background of Youshui Bridge,the influencing factors of high skew pier sunlight temperature effect and finite element analysis method were introduced in a (80 + 145 + 80)m casting prestressed concrete box girder continuous bridge of high skew pier large span cantilever of Zhanghua highway in Hunan province,where the thermal effect analysis model was built by use of the finite element analysis software ANSYS.Based on the spot test data,the structure temperature field and temperature stress distribution characteristic of the bridge pier under the action of sunshine were analyzed.After exerting structure load and boundary conditions,structural mechanic characteristics of the pier under integrated factors were also investigated based on the analysis method of temperature effect,and temperature influence degree on the stress of bridge pier was discussed.At last,the influence of support reaction under temperature effect was explored,and the torque of bridge upper structure was provided after the support reaction was changed.关键词
斜交高墩/日照温度效应/温度场/温度应力/梁体扭矩Key words
high skew pier/sunlight temperature effect/temperature field/temperature stress/torque of upper structure分类
交通工程引用本文复制引用
胡立华,李德建,陈建平,王黛..酉水大桥大跨度连续箱梁桥斜交高墩日照温度效应分析[J].铁道科学与工程学报,2013,10(2):23-29,7.基金项目
湖南省交通科技计划项目(201022) （201022）
