Condition Assessment of a Reinforced Concrete Residential Building using Non-destructive Testing Methods - A Case Study

IF 0.7 Q4 ENGINEERING, CIVIL

Electronic Journal of Structural Engineering Pub Date : 2021-11-30 DOI:10.56748/ejse.21288

M. Rath

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引用次数: 0

Abstract

The present study deals with both experimental and numerical investigation on buckling effects of laminated composite plates subjected to varying temperature and moisture. A simple laminated plate model is developed for the buckling of composite plates subjected to adverse hygrothermal loading. A computer program based on FEM in MATLAB environment is developed to perform all necessary computations. The woven fiber Glass/Epoxy specimens were hygrothermally conditioned in a humidity cabinet where theconditions were maintained at temperatures of 300K-425K and relative humidity (RH) ranging from 0-1% for moisture concentrations. All the investigations are made with a symmetric cross-ply laminates. The present study deals with both experimental and numerical investigation on buckling behavior of laminated composite plates subjected to varying temperature and moisture concentration. Quantitative results are presented to show the effects of geometry, material and lamination parameters of woven fiber laminate onbuckling of composite plates for different temperature and moisture concentrations with simply supported boundary conditions with different aspect and side-to-thickness ratios. Experimental results show that there is reduction in buckling loads in KN with the increase in temperature and moisture concentration for laminates with clamped-free-clamped-free boundary conditions

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用无损检测方法对某钢筋混凝土住宅建筑进行状态评估——一个案例研究

本研究对复合材料层合板在不同温度和湿度下的屈曲效应进行了实验和数值研究。针对复合材料板在不利湿热荷载作用下的屈曲问题，建立了一个简单的层合板模型。在MATLAB环境下开发了一个基于有限元法的计算机程序来执行所有必要的计算。编织纤维玻璃/环氧树脂样品在湿度箱中进行湿热处理，在湿度箱中将条件保持在300K-425K的温度和水分浓度为0-1%的相对湿度（RH）范围内。所有的研究都是用对称的交叉层压板进行的。本研究对复合材料层合板在不同温度和水分浓度下的屈曲行为进行了实验和数值研究。定量结果表明，在不同纵横比和侧厚比的简支边界条件下，不同温度和水分浓度下，编织纤维层压板的几何形状、材料和层压参数对复合材料板屈曲的影响。实验结果表明，在自由-夹紧-自由边界条件下，层压板的屈曲载荷随着温度和水分浓度的增加而减小，单位为KN

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来源期刊

Electronic Journal of Structural Engineering Engineering-Civil and Structural Engineering

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： The Electronic Journal of Structural Engineering (EJSE) is an international forum for the dissemination and discussion of leading edge research and practical applications in Structural Engineering. It comprises peer-reviewed technical papers, discussions and comments, and also news about conferences, workshops etc. in Structural Engineering. Original papers are invited from individuals involved in the field of structural engineering and construction. The areas of special interests include the following, but are not limited to: Analytical and design methods Bridges and High-rise Buildings Case studies and failure investigation Innovations in design and new technology New Construction Materials Performance of Structures Prefabrication Technology Repairs, Strengthening, and Maintenance Stability and Scaffolding Engineering Soil-structure interaction Standards and Codes of Practice Structural and solid mechanics Structural Safety and Reliability Testing Technologies Vibration, impact and structural dynamics Wind and earthquake engineering. EJSE is seeking original papers (research or state-of the art reviews) of the highest quality for consideration for publication. The papers will be published within 3 to 6 months. The papers are expected to make a significant contribution to the research and development activities of the academic and professional engineering community.