新旧桥梁基础沉降差异控制研究  

Differential settlement control study of new and old bridges foundation

作　　者：王进军 温庆杰[2] 

机构地区：[1]中国交通建设总公司第二航务工程局 [2]东南大学

出　　处：《山西建筑》2009年第7期303-304,共2页Shanxi Architecture

摘　　要：从拓宽后桥梁上部结构整体性能和拼接部位不产生混凝土裂缝出发,提出了新旧桥梁基础沉降差容许值的概念。结合江苏某高速公路桥梁拓宽的技术条件和结构分析,介绍了容许值的确定方法和在施工中控制的工程对策,对典型桥梁的沉降观测结果证明了计算模式是正确的。Considering performance of overall superstructure and concrete cracks at interface, the concept of allowable differential foundation settlement is put forward. Combined with technical conditions and structural analysis of bridge widening on Jiangsu expressway, the ways to determine allowable differential settlement and engineering control methods in construction are introduced. Calculating models are proved by settlement observation data of typical bridges.

关 键 词：混凝土桥 桥梁拓宽 基础沉降差 沉降差容许值 沉降观测 

分 类 号：U443.1[建筑科学—桥梁与隧道工程]