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首页> 外文期刊>International journal of structural stability and dynamics >EXPERIMENTAL AND NUMERICAL STUDY ON IN-PLANE BEHAVIOR OF BRICK MASONRY WALL PANELS
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EXPERIMENTAL AND NUMERICAL STUDY ON IN-PLANE BEHAVIOR OF BRICK MASONRY WALL PANELS

机译：砖砌体墙板平面行为的试验与数值研究

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摘要

This paper presents the details of studies conducted on brick masonry units and wall panels. The investigation includes, compressive strength of brick unit, prisms, flexural strength evaluation, and testing of reinforced brick wall panels with and without opening. Nonlinear finite element analysis (FEA) of brick wall panels with and without opening has been carried out by simulating the actual test conditions. Constant vertical load is applied on the top of the wall panel and lateral load is applied in an incremental manner. The in-plane deformation is recorded under each incremental lateral load. Displacement ductility factors and response-reduction factors have been evaluated based on experimental results. From the experimental study, it is observed that fully reinforced wall panel without opening performed well compared to other types of wall panels in lateral load resistance and displacement ductility. In all the wall panels, shear cracks originated at loading point and moved toward the compression toe of the wall. The force-reduction factors of a wall panel with opening are much less when compared with fully reinforced wall panel with no opening. The displacement values obtained by nonlinear FEA were found to be in good agreement with the corresponding experimental values. The difference in the computed and experimental values is attributed to the influence of mortar joint which was not considered in FEA. The derived response-reduction factors will be useful for adopting elastoplastic design procedures for lateral forces generated due to earthquakes.
机译：本文介绍了对砖砌体单元和墙板进行研究的细节。研究内容包括砖单元的抗压强度，棱柱，抗弯强度评估以及带或不带开口的钢筋砖墙板的测试。通过模拟实际测试条件，进行了带开口和不带开口的砖墙面板的非线性有限元分析（FEA）。恒定的垂直载荷施加在墙面板的顶部，而横向载荷则以递增的方式施加。在每个增量横向载荷下记录面内变形。根据实验结果评估了位移延性因子和响应减少因子。从实验研究中观察到，与其他类型的墙板相比，没有开口的全增强墙板在抗侧向载荷和位移延展性方面表现良好。在所有墙板中，剪切裂纹起源于荷载点，并向墙的压缩脚趾移动。与没有开口的全增强墙板相比，有开口的墙板的力减小系数要小得多。发现通过非线性有限元分析获得的位移值与相应的实验值非常吻合。计算值和实验值的差异归因于砂浆连接的影响，而有限元分析中并未考虑这些影响。导出的响应减少因子对于采用弹塑性设计程序来处理地震引起的横向力将很有用。

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