预应力混凝土连续箱梁体系转换施工技术应用研究  

Application of the System Conversion Construction Technology of Prestressed Concrete Continuous Box Beam

作　　者：刘兴文[1] 

机构地区：[1]西安铁路职业技术学院土木工程系,西安710600

出　　处：《河南科学》2012年第6期755-758,共4页Henan Science

基　　金：陕西省应用科学基金项目(SJ08A28)

摘　　要：预应力混凝土连续梁施工是个薄弱环节,直接影响着工程质量,存在较多安全隐患.以郑西客运专线某桥预应力混凝土连续箱梁体系转换的设计与施工为工程背景,介绍了一种新方法技术:0号块临时固结结构设计、合龙方式选择、体系转换施工准备、临时固结结构的固结与解除施工技术.The construction of prestressed concrete beam is the weak link, which impairs the quality and exists the hidden trouble in safety. Based on the system conversion construction technology of a prestressed concrete continuous box beam bridge in Zheng-Xi Passenger Line, this paper introduces a kind of new method and technology, including the temporary consolidation of the start element design,closure mode selection,system conversion construction preparation, consolidation of temporary consolidation structure and lifting construction technology.

关 键 词：预应力 混凝土 连续箱梁 体系转换 0号块 施工技术 

分 类 号：TU473.2[建筑科学—结构工程]