Experimental research on stress detection of short steel strands based on LC oscillation

摘要：

　　The value of existing stress is one of the main parameters to reflect the health conditions of prestressed concrete structures.However,the existing methods of prestress detection are still difficult to detect the stress of bonded prestressed steel strands.In this paper,the method which is based on LC oscillation needs only to detect stress at the two ends of the steel strand.A set of steel strands with length of 1.2m are adopted to test the change rule of stress and oscillation frequency.The experimental results show that the frequency decreases with the increase of stress,and the frequency of the incomplete unloading test is smaller than that of the complete unloading test under the same stress condition.

关键词： prestress electromagnetic effect oscillation frequency steel strands

作者: Chong Tu Hang Zhang Benniu Zhang

作者单位: School of Civil Engineering,Chongqing Jiaotong University,Chongqing,China

会议类型: 国际会议

会议名称: The 7th World Conference on Structural Control and Monitoring(7WCSCM)(第七届结构控制与监测世界大会)

会议地点: 青岛

会议语种:英文

页码: 272-281

在线出版日期: 2018-07-22（万方平台首次上网日期，不代表论文的发表时间）