摘要
东河大桥引桥为 ３０ ｍ预应力组合小箱梁，采用了新的结构形式。结合施工实践，探讨了该类型小箱梁预应力混凝土结构后张拉施工中所出现的问题及解决的方法。
Donghe Bridge Approach is of the small box beam with 30m prestressing combination, which adopted a new structural type, Linking with the actual construction practice, this paper deals with the prob- lems in the concrete structural post -tension for the similar type of small box beam prestresing, and the relevant resolvents as well,
出处
《广西交通科技》
2001年第3期59-61,共3页
Guangxi Communication Science & Technology
关键词
后张法
东河大桥引桥
预应力组合箱梁
微裂纹
应力传递
钢绞线
回缩量
施工工艺
post- tension
prestressing combined box beam
slight crack
stress transmission
steel twist- ed wire
re- condensation
construction technique
