渡口河特大桥的施工监控  

Construction Monitoring of Dukouhe Extra Bridge

作　　者：蒋孝辉[1] 陈勇[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《北方交通》2007年第10期59-61,共3页Northern Communications

摘　　要：结合渡口河特大桥施工控制实践,阐述了悬臂浇筑施工过程中的施工监控原理和方法,以及有限元计算、线形监测、应变测量等方面的技术问题,研究了箱梁的线形预测控制方法和混凝土应变分布特性,科学地指导了施工。施工数据表明该特大桥的施工监控方法和计算方法的有效性以及合理性。In the light of practice of Dukouhe extra bridge construction,the paper sets forth the principle and method for construction monitoring in the process of cantilever cast as well as the definite element calculation, alignment monitoring,strain measurement, etc, and studies the controls of alignment survey of box beam and the property of contrete strain distribution, scientifically guiding the construction. The construction data show the validity and rationality of monitorings and calculations for the extra bridge construction.

关 键 词：施工监控 预应力混凝土连续刚构桥 预测控常 标高 应力 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]