引黄联接段公路1~#桥桥面板裂缝原因分析

Analysiy on Crack of Bridge Deck of No.1 Bridge In Highway of the Coanection Works of YRDP

引黄联接段公路１ ＃ 桥为装配式预应力空心板桥，有部分空心板出现不同程度的裂缝，属于温度裂缝，产生裂缝的原因主要是由于浇筑时和养护混凝土温度控制措施不当、养护时间短及台座基础变形而引起的。

No.1 bridge in highway of the Connection Works of YRDP is a fabricated and prestressed hollow deck one,in which some parts of hollow plate occurred crack in varying degree.In this paper,the cause why crack occurred is analysed,verifying that it is chiefly to the unfit temperature control in course of pouring and curing of concrete,the too short curing time and the deformation of abutmen foundation.