Bridge damage detection based on the analysis of deflection influence line

摘要：

　　A study on the analysis of deflection influence line for bridge damage detection is present in this paper.In order to quantify the damage extent,a correlation of the change of global stiffness matrix and DIL caused by structural damage is established and derived in detail.A numerical simulation example of detecting a simply supported beam damages under the influence of noise is presented then.From the analysis it is shown that damages can be accurately identified,located and quantified using the proposed method.Furthermore,the method proposed herein is validated through a series of moving vehicle experiments on a simply supported bridge model in laboratory.Different vehicle conditions such as vehicle weights and velocities are considered.Experimental results demonstrate that the efficiency of the proposed method for bridge damage detection.At last,limitations of the method,recommendations,and future work are addressed.

关键词： Damage detection deflection influence line (DIL) vehicle-bridge coupled analysis

作者: Chengyin Liu Zhen Peng

作者单位: Department of Civil and Environmental Engineering,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,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: 2446-2455

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）