文献类型：期刊文献

英文题名：A Multi Pier (MP) method for the evaluation FRP delamination on flat and curve masonry substrates

作者：Zhao, Liyuan[1];Song, Zenghao[2];Feng, Hongwei[1];Zhao, Meng[3];Pirsaheb, Hiva[4]

第一作者：赵利媛

通讯作者：Zhao, LY[1];Pirsaheb, H[2]

机构：[1]XinXiang Univ, Sch Civil Engn & Architecture, XinXiang 453003, HeNan, Peoples R China;[2]PingYuan Demonstrat Area Investment Grp, XinXiang 453003, Henan, Peoples R China;[3]Zaha Hadid Ltd, London EC1R 0BQ, England;[4]Politecn Milan, Dept Architecture Built Environm & Construct Engn, Piazza Leonardo Da Vinci 32, I-20133 Milan, Italy

第一机构：新乡学院土木工程与建筑学院

通讯机构：[1]corresponding author), XinXiang Univ, Sch Civil Engn & Architecture, XinXiang 453003, HeNan, Peoples R China;[2]corresponding author), Politecn Milan, Dept Architecture Built Environm & Construct Engn, Piazza Leonardo Da Vinci 32, I-20133 Milan, Italy.|[1107114]新乡学院土木工程与建筑学院;[11071]新乡学院;

年份：2022

卷号：294

外文期刊名：COMPOSITE STRUCTURES

收录：;EI(收录号：20222912362419);Scopus(收录号：2-s2.0-85133969655);WOS:【SCI-EXPANDED(收录号:WOS:000831197800002)】；

基金：I, Hiva Pirsaheb would like to acknowledge Professor Gabriele Milani from Politecnico di Milano, Italy for his kind supervision on this research paper.

语种：英文

外文关键词：Masonry pillars; FRP delamination; Single lap shear; Bonding behavior; Multi Pier (MP) method

摘要：In this paper a truss based approach called Multi Pier (MP) method is developed to FRP delamination on masonry substrate. According to the method, a (2D) continuous masonry element is represented via trusses assemblage consisted of two vertical elements (piers) and two diagonal rods (braces). Both axial and shear stiffness of the substrate are provided by piers and braces, respectively. Bi-linear axial behavior is dedicated to trusses based on the masonry stress-strain curve. Coupled shear-normal interaction due to curvature is considered by appropriate forces distribution among the braces. In order to validation, the approach was benchmarked against six experimental strengthened masonry pillars via C/G FRP sheets from the literature. The specimens include four flat and two curve substrates with various properties and boundary conditions under single lap shear test. For each specimen global load-slip behavior, failure mechanism, fiber tensile stress and strain profile, bond and normal (in the case of curve pillars) stresses profile during various phases of the delamination process were compared with the available experimental results. Satisfactory accuracy was obtained despite very limited computational cost due to substitution of complicated (2D) or (3D) continuous elements by simplified (1D) trusses with bi-linear axial behavior.