摘要
京珠北段观音沙特大桥是一座预应力连续刚构桥,介绍大桥应力监测中利用预埋在主梁中性轴的应变计进行混凝土徐变系数识别,采用叠加法进行徐变应变分离,取得了良好的效果。
The Guanyinsha Bridge on the north section of Beijing-Zhuhai Expressway is a prestressed concrete continuous rigid-frame bridge. This paper presents the identifying of concrete creep coefficients by strain gauges embedded in the neutral axis of the main girder, separating of creep and strain by superposition method in the stress monitoring of the Bridge and sound effect of the monitoring achieved therefrom.
出处
《桥梁建设》
EI
CSCD
北大核心
2006年第5期62-64,71,共4页
Bridge Construction
关键词
连续梁桥
应力监测
应变
徐变系数
continuous girder bridge
stress monitoring
strain
creep coefficient
