An inverse analysis procedure for material parameter identification of mortar joints in unreinforced masonry

被引：29

作者：

Chisari, C. ^{[1
]}

Macorini, L. ^{[2
]}

Amadio, C. ^{[1
]}

Izzuddin, B. A. ^{[2
]}

机构：

[1] Univ Trieste, Dept Engn & Architecture, I-34127 Trieste, Italy

[2] Univ London Imperial Coll Sci Technol & Med, Dept Civil & Environm Engn, London SW7 2AZ, England

来源：

COMPUTERS & STRUCTURES | 2015年 / 155卷

关键词：

Inverse analysis; Unreinforced masonry; Mesoscale model; Genetic Algorithms; Interface elements; Noise analysis; ELASTIC PROPERTIES; OPTIMIZATION; ELEMENT; WALLS; MODEL;

D O I：

10.1016/j.compstruc.2015.02.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Many old unreinforced masonry (URM) structures still in use need to be assessed considering the safety requirements proposed by current codes. Because of the complexity of the URM response, sophisticated numerical descriptions are required for an accurate structural assessment. When inverse analysis is used for the identification of material properties, the study of the effects of measurement errors is essential for assessing the robustness of the adopted procedure. In this work, inverse analysis techniques utilising Genetic Algorithms are employed to calibrate elastic material parameters of an advanced mesoscale model for URM. In order to apply this strategy to in-situ low-invasive investigations, a non-conventional flat-jack test setup is proposed. The potential and limitations of the method are analysed using computer-generated pseudo-experimental data with different noise limits. This allows the evaluation of the influence of the measurement equipment precision on the stability of the inverse problem. (C) 2015 Civil-Comp Ltd and Elsevier Ltd. All rights reserved.

引用

页码：97 / 105

页数：9

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