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原文传递 Modeling Methods for Collapse Analysis of Reinforced Concrete Frames with Infill Walls

题名：	Modeling Methods for Collapse Analysis of Reinforced Concrete Frames with Infill Walls
正文语种：	英文
作者：	Shuang Li, Aff.M.ASCE1; Mehmet Metin Kose2; Sidi Shan3; Halil Sezen, F.ASCE4
作者单位：	1Associate Professor, Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin 150090, China. 2Professor, Dept. of Civil Engineering, Kahramanmaras Sutcu Imam Univ., Kahramanmaras 46050-9, Turkey; formerly, Visiting Scholar, Dept. of Civil, Environmental and Geodetic Engineering, Ohio State Univ., Columbus, OH 43210. 3Formerly, Ph.D. Student, Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, China; formerly, Visiting Scholar, Dept. of Civil, Environmental and Geodetic Engineering, Ohio State Univ., Columbus, OH 43210; presently, Lecturer, School of Resources and Civil Engineering, Northeastern Univ., Shenyang 110819, China (corresponding author).
关键词：	Progressive collapse; Reinforced concrete frame; Infill wall; Three-strut model; Collapse model
摘要：	Progressive collapse behavior of RC infilled frames is studied experimentally under quasi-static loading and numerically by using macro (strut) and micro (finite-element) models to simulate the damage propagation within infill walls. A three-strut model is proposed to simulate the overall behavior of infill walls based on the observation that corner regions of infill walls play an important role even after the cracking of the diagonal region in infill walls. The proposed three-strut model is implemented using commercially available software. The accuracy of the proposed method is evaluated by comparing the experimental data with simulated responses from detailed finite-element models and simplified strut models. The modified three-strut model is also compared with other widely used strut models. The comparison shows that the proposed three-strut model predicts the maximum resistance force with higher accuracy. Finally, a simpler model is developed based on the proposed three-strut model for infill walls. This simpler model can easily be implemented by practicing engineers to predict the overall behavior of the infilled frame with acceptable accuracy.
出版年：	2019
期刊名称：	Journal of Structural Engineering
卷：	145
期：	4
页码：	1-12