摘要
在支座施工偏差条件下,先简支后连续桥梁在长期运营过程中,因温度效应和汽车制动力的作用,可能会出现墩柱倾斜、梁体纵向移位、伸缩缝卡死、支座滑移脱空等病害。以某高速公路桥头大桥上述病害为例,概述其病害成因,结合维修加固工程实践,阐述采用多跨径整体同步顶升梁体并利用上部结构作为反力架对桥墩进行纠偏的技术,为日后类似桥梁纠偏问题提供参考和依据。
Under the condition of support construction deviation, the diseases of pier stud tilted, beam longitudinally displaced, expansion joint jammed, and support slipped and removed maybe appear in the first-simple-supported post-continuous-beam bridge in the long-term operation process because of temperature effect and automobile braking force. Taking the above diseases of a bridge in an expressway as an example, the article summarizes its disease causes, and sets forth the technique of using the multi-span synchronous jacking beam and superstructure as the reaction frame for rectifying of bridge pier, which can be referred for rectifying of the similar bridges.
出处
《城市道桥与防洪》
2017年第12期78-81,共4页
Urban Roads Bridges & Flood Control
关键词
墩柱倾斜
梁体偏移
桥梁纠偏
同步顶升
高桥墩
pier stud tilted
beam displaced
bridge rectifying
synchronous jacking
high bridge pier
