摘要
通过对某新型哑铃型钢管混凝土拱桥的拱肋施工过程温度效应的现场实测,显示该截面类型的钢管混凝土拱肋在施工阶段的水化热升温显著,先浇筑弦管升温与等直径单圆管一致,后浇筑弦管升温高于先浇筑弦管。试验结果为后期结构温度效应及结构基准温度的确定提供了参考依据。
Tested on the hydration temperature effects during construction of a concrete filled steel tubular arch Bridge with new type Dumb-bell-shaped section,it showed that the high temperature on dumbbell-shaped section caused by Hydration heat would be obvious.And the tempera-ture on first casting tubular was similar to that on the same diameter single one,and the temperature on post casting tubular was higher than the first casting.The results would be as reference for the similar bridges.
出处
《混凝土》
CAS
CSCD
北大核心
2011年第8期138-139,143,共3页
Concrete
基金
广西大学科研基金项目(X091013)
关键词
钢管混凝土拱桥
新型哑铃型截面
水化热
温度
concrete filled steel tubular arch bridge
new type dumbbell-shaped section
hydration heat
temperature
