Simplified analysis model of horizontal load-displacement curves of resilient infilled frame

被引：0
|
作者：
Liu H. [1 ,2 ]
Li S. [1 ,2 ]
Wang H. [1 ,2 ]
机构：
[1] Key Laboratory of Structures Dynamic Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin
[2] Key Laboratory of Smart Prevention and Mitigation of Civil Engineering Disasters, Ministry of Industry and Information Technology, Harbin Institute of Technology, Harbin
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷
关键词：
finite element model; infilled wall frame; resilient structure; seismic performance; simplified load-displacement curve;
D O I：
10.14006/j.jzjgxb.2023.S2.0042
中图分类号：
学科分类号：
摘要：
The resilient structure has good seismic performance and self-centering effect. To study the effect of infilled walls on seismic performance of resilient frames, a refined finite element of a resilient infilled wall frame was established in this paper, and a simplified prediction method for the load-displacement curve using numerical simulation results was proposed. The results show that the resilient infilled wall frame will not undergo brittle failure, and the initial prestressing force of the prestressed steel reinforcement has a significant impact on the bearing capacity of the resilient infilled wall frame. Changing the strength of the mortar and masonry blocks would lead to changes in the transmission mode of the infill wall. The supporting rod effect of the infilled wall develops along the diagonal direction, and the lateral opening of the angle steel has a significant impact on the bearing capacity. A simplified analysis model was proposed, which decomposed the stress of a resilient infilled wall frame into a resilient bare frame and a infilled wall. The undetermined parameters of the resilient bare frame and the infilled wall in the elastic, elasto-plastic and plastic stages were calculated separately, and the linear interpolation method was used to stack them separately. The simplified load-displacement curve of the resilient infilled wall frame was obtained,which had good agreement with finite element results. © 2023 Science Press. All rights reserved.
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页码：411 / 426
页数：15
相关论文
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