某工程预应力空心梁板跨中开裂的原因分析和改进措施  

Cause Analysis and Improving Measures for the Cracking of Prestressed Hollow Beam Boards Midspan in a Certain Project

作　　者：谢韬 张天伟 

机构地区：[1]中交二航局第二工程有限公司,重庆400015

出　　处：《重庆建筑》2011年第1期34-36,共3页Chongqing Architecture

摘　　要：某工程桥梁预应力空心板台座上未张拉梁板跨中出现裂隙,从空心板的设计、施工和商品混凝土配制三方面分析原因,并提出针对性处理意见。后续实践证明,通过改进台座和对商品混凝土生产进行事前质量控制是有效的。A problem occurred concerning the non-tension beam boards midspan on the bridge prestressed hollow beam boards pedestal crack in a certain Project.This article put forward countermeasures through the design of hollow boards,construction and compound of commodity concrete.This later proved to be effective in the follow-up practice regarding the pedestal improvement and quality control of the commodity concrete in advance.

关 键 词：预应力空心板 跨中 开裂 

分 类 号：TU757[建筑科学—建筑技术科学]