R/C frame–infill interaction model and its application to Indonesian buildings
R/C frame–infill interaction model and its application to Indonesian buildings
复制标题
R/C框架-填充相互作用模型及其在印度尼西亚建筑中的应用
DOI：
10.1002/eqe.2787
复制
发表时间：
2017
影响因子：
4.5
通讯作者：
Y. Sanada
中科院分区：
文献类型：
--
作者：
Maidiawati;Y. Sanada
本文提出了一种新的分析模型，砌体填充R/C框架，以评估抗震性能考虑框架填充相互作用。提出的分析模型取代砌体填充与斜压杆，这代表了分布压力之间的框架和填充界面。等效支撑宽度作为框架-填充物接触长度的函数，可以通过与框架-填充物界面处的压缩平衡和侧向位移协调性相关的静态平衡来评估。通过与几个砖砌体填充R/C框架的实验结果进行比较，验证了所提出的分析模型，这些框架代表了印度尼西亚典型的非结构砌体填充R/C建筑。结果表明，填充框架的抗侧力和延性的试验值与理论值吻合较好。应用所提出的分析模型，对两栋不同震害条件的钢筋混凝土结构进行了考虑填充效应的抗震性能评估。因此，非结构砖砌体填充显着影响建筑物的抗震能力，这似乎导致不同程度的损害为每个建筑物。这些结果表明，所提出的分析模型可以更精确地筛选在印度尼西亚的地震脆弱的现有R/C建筑的有效工具。版权所有© 2016作者。《地震工程与结构动力学》，John Wiley & Sons Ltd.出版。
This paper proposes a new analytical model for masonry‐infilled R/C frames to evaluate the seismic performance considering R/C frame–infill interactions. The proposed analytical model replaces masonry infill with a diagonal compression strut, which represents distributed compression transferred between frame and infill interfaces. The equivalent strut width is presented as a function of the frame–infill contact length, which can be evaluated by static equilibriums related to compression balance and lateral displacement compatibility at the frame–infill interfaces. The proposed analytical model was verified through comparisons with experimental results obtained for several brick masonry‐infilled R/C frames representing a typical R/C building with nonstructural masonry infill in Indonesia. As a result, good agreements were observed between the experimental and analytical values of the lateral strength and ductility of the infilled frames. The seismic performances of two earthquake‐damaged R/C buildings with different damage conditions were evaluated considering infill effects by applying the proposed analytical model. Consequently, the nonstructural brick masonry infill significantly affected the seismic resistances of the buildings, which seemed to lead to differing levels of damage for each building. These results indicate that the proposed analytical model can be an effective tool for more precisely screening earthquake‐vulnerable existing R/C buildings in Indonesia. Copyright © 2016 The Authors. Earthquake Engineering & Structural Dynamics Published by John Wiley & Sons Ltd.