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2018年 第12卷 第1期

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《结构与土木工程前沿（英文）》 >> 2018年 第12卷 第1期 doi: 10.1007/s11709-016-0379-1

A combination of damage locating vector method (DLV) and differential evolution algorithm (DE) for structural damage assessment

. Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Hochiminh City, Vietnam.. Faculty of Civil Engineering, Ton Duc Thang University, Hochiminh City, Vietnam

录用日期： 2017-04-13 发布日期： 2018-03-08
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In this study, a two-stage method is presented for identifying multiple damage scenarios. In the first stage, the damage locating vector (DLV) method using normalized cumulative energy ( ) is employed for damage localization in structures. In the second stage, the differential evolution algorithm (DE) is used for damage severity of the structures. In addition, in the second stage, a modification of an available objective function is made for handing the issue of symmetric structures. To verify the effectiveness of the present technique, numerical examples of a 72-bar space truss and a one-span steel portal frame are considered. In addition, the effect of noise on the performance of the identification results is also investigated. The numerical results show that the proposed combination gives good assessment of damage location and extent for multiple structural damage cases.

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