基于静载试验T梁湿接缝损伤识别研究  

BASED ON A STATIC LOAD TEST WET JUNCTURE T BEAM DAMAGE DETECTION RESEARCH

作　　者：谷丹丹[1] 李静辉[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《低温建筑技术》2015年第6期92-95,共4页Low Temperature Architecture Technology

摘　　要：预制梁桥是我国广泛使用的一种桥梁形式,随着使用年限、交通量的增长和施工质量问题,部分桥梁不同程度的产生湿接缝(铰缝)失效的现象,一旦产生单板受力,受力梁与非受力梁之间的挠度值相差很大,各片梁之间不能协同变形,这对桥梁的安全使用构成严重威胁。本文通过对某T梁桥进行静载试验,观测各片梁的变形值并结合该桥梁已有的病害来判断其是否湿接缝损坏,从而对本桥梁的技术状况做出正确的判断。Precast girder bridge is a form of bridge which was used widely. With the increasing of the life and traffic volume, part of the bridge will produce varying degrees of wet joint failure phenomenon. Once single board force, the forced beam and non-forced beam have a great difference in deflection, cannot be the deformation coordinated between the beams, it is risky for the safety of the bridge. AT girder bridge is carried out in this article, through static load test, monitoring deformation value of each piece of beam bridge and combined with the existing disease to judge whether the wet joint suffer damage, then we will make the correct judgment to technique condition of this bridge.

关 键 词：预制梁桥 湿接缝 荷载试验 单板受力 

分 类 号：TU312.3[建筑科学—结构工程]