作者机构：
[Wei Qi-zhi] Hunan City Univ, Project Management Dept, Coll City Management, Yiyang 413000, Peoples R China.;[Yang Tao] Hunan City Univ, Dept Civil Engn, Bridge Engn Div, Yiyang 413000, Peoples R China.
会议名称：
5th International Conference on Measuring Technology and Mechatronics Automation (ICMTMA)
会议时间：
JAN 16-17, 2013
会议地点：
Hong Kong, PEOPLES R CHINA
会议主办单位：
[Wei Qi-zhi] Hunan City Univ, Project Management Dept, Coll City Management, Yiyang 413000, Peoples R China.^[Yang Tao] Hunan City Univ, Dept Civil Engn, Bridge Engn Div, Yiyang 413000, Peoples R China.
会议论文集名称：
International Conference on Measuring Technology and Mechatronics Automation
关键词：
vibration testing method;PC box-girder bridge;finish rolling rebar;vertical prestress;construction quality control
摘要：
The paper presents all operation procedures of a vibration testing method for effective tension in box-girder bridge, as well as its application situation in more than thirty long-span PC box-girder bridges. And all the key points have been succesfully used to control the construction quality of rebar vertical prestress system. Moreover, the succesful practice of using the testing method to enhance quality reveals the reliability of rebar vertical prestress system for long-span PC box-girder bridges.
