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聚合物填充墙-框架界面用于钢筋混凝土建筑的抗震保护

Seismic Protection of RC Buildings by Polymeric Infill Wall-Frame Interface.

作者信息

Akyildiz Ahmet Tugrul, Kowalska-Koczwara Alicja, Hojdys Łukasz

机构信息

Faculty of Civil Engineering, Cracow University of Technology, 31-155 Cracow, Poland.

出版信息

Polymers (Basel). 2021 May 14;13(10):1577. doi: 10.3390/polym13101577.

DOI:10.3390/polym13101577
PMID:34069131
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8155977/
Abstract

This paper is aimed at investigating the usage of flexible joints in masonry infilled walls surrounded by reinforced concrete (RC) frames. For this purpose, a real-size specimen was numerically created and exposed to the seismic loads. In order to evaluate both in-plane and out-of-plane performances of the infill walls, the system was chosen as a box shaped three-dimensional structure. In total, three different one-story constructions, which have single bays in two perpendicular directions, were modeled. The first type is the bare-frame without the infill walls, which was determined as a reference system. The second and third types of buildings are conventional mortar joint and PolyUrethane Flexible Joint (PUFJ) implemented ones, respectively. The influence of these joints on the material level are investigated in detail. Furthermore, general building dynamic characteristics were extracted by means of acceleration and displacement results as well as frequency domain mode shapes. Analyses revealed that PUFJ implementation on such buildings has promising outcomes and helps to sustain structural stability against the detrimental effects of earthquakes.

摘要

本文旨在研究钢筋混凝土（RC）框架包围的砌体填充墙中柔性节点的使用情况。为此，创建了一个实物尺寸的试件并对其施加地震荷载。为了评估填充墙的平面内和平面外性能，该系统被选为箱形三维结构。总共对三种不同的单层建筑进行了建模，这些建筑在两个垂直方向上均有单跨。第一种类型是没有填充墙的裸框架，将其确定为参考系统。第二种和第三种类型的建筑分别是采用传统砂浆接缝和聚氨酯柔性节点（PUFJ）的建筑。详细研究了这些节点对材料层面的影响。此外，通过加速度和位移结果以及频域振型提取了一般建筑的动力特性。分析表明，在此类建筑上采用PUFJ有良好的效果，并有助于维持结构稳定性以抵抗地震的有害影响。

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