|Table of Contents|

Seismic response and optimization analysis of exterior-shear-wall with interior-frame (ESIF) structural system combined with recycled concrete(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2026年01期
Page:
152-161
Research Field:
建筑结构
Publishing date:

Info

Title:
Seismic response and optimization analysis of exterior-shear-wall with interior-frame (ESIF) structural system combined with recycled concrete
Author(s):
XIAO Jianzhuang1; 2;  CHENG Zhangyi1; 3;  HOU Minjie1;  DING Tao1;  XIAO Xuwen1
1. College of Civil Engineering, Tongji University, Shanghai 200092, China; 2. Institute of Science and Technology for Carbon Peak & Neutrality, Guangxi University, Nanning 530004, Guangxi, China; 3. Shanghai Nuclear Engineering Research & Design Institute Co., Ltd., Shanghai 200030, China
Keywords:
recycled concrete;  ESIF;  shear force sharing ratio;  variable parameter analysis;  seismic performance
PACS:
TU528
DOI:
10.19815/j.jace.2025.02045
Abstract:
Based on the control mechanism of the frame-shear stiffness ratio on the internal force distribution of the structure, the low elastic modulus of recycled concrete was effectively utilized to reasonably adjust the stiffness relationship. The ESIF structural system combined with recycled concrete was proposed, and the seismic response and seismic optimization analysis of the structure were conducted. Through the combination of theoretical analysis, finite element modeling and variable parameter analysis, the influence of the recycled coarse aggregate replacement ratio on the recycled concrete exterior-shear-wall was studied. Subsequently, based on a 10-story regular ESIF structural system combined with recycled concrete, variable parameter analysis of wall length and thickness was carried out. The results show that as the replacement ratio of recycled coarse aggregate increases, the structural period increases, stiffness decreases, and internal force response reduces. The internal force sharing ratio of wall and column is reduced, and the structural performance is improved. When the replacement ratio of recycled coarse aggregate reaches 100%, the total bottom shear force of the structure decreases by approximately 11.1%, the maximum inter-story drift angle increases by about 10.7%, the shear force sharing ratio between walls and columns decreases by approximately 8.8%, and the wall sharing ratio is? 77.1% under frequent 8degree seismic conditions. Under rare 8degree earthquake conditions, the peak shear force at the bottom of the structure decreases by 9%-13%, and the average envelope value of inter-story drift increases by about 9%, which meets the requirements of the current standard limits. When the shear force sharing ratio is between 0.6 and 0.8, the seismic performance of the structure is effectively improved.

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Last Update: 2026-01-20