空心板桥加宽预压施工工艺分析及应用  

Analysis and Application for the Preloading Technology in Widening Construction of Cellular Slab Bridge

作　　者：邓苗毅[1] 李广慧[1] 

机构地区：[1]郑州航空工业管理学院土木建筑工程学院,河南郑州450015

出　　处：《施工技术》2010年第7期70-72,共3页Construction Technology

基　　金：河南省交通厅科技项目(2007P443);河南省高校科技创新人才支持计划(2008HASTIT017)

摘　　要：分析了在对新加宽部分桥梁施加预压作用力条件下,浇筑新旧结构连接处混凝土的公路空心板桥加宽预压施工工艺,提出了该预压施工工艺结构计算分析的基本原理、方法和实现步骤,并在某工程实例桥加宽改造施工中进行了成功应用。The preloading technology is analyzed,in which concrete is poured into the joint of new and former structure with preloading on the new structure for the widening construction of highway prefabricated cellular slab bridge.The basic principle,method and realization approach of structural computation for this preloading technology is proposed.This preloading technology and structural computation method are successfully applied to the actual bridge widening project.

关 键 词：装配式空心板桥 加宽 预压 结构计算 

分 类 号：U445[建筑科学—桥梁与隧道工程]