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| 某带转换桁架的钢框架-混凝土剪力墙结构抗震性能分析 |
| Analysis of Seismic Performance of a Steel Frame-Concrete Shear Wall Structure with Convertible Truss |
| 投稿时间：2026-04-21 修订日期：2026-05-24 |
| DOI： |
| 中文关键词: 剪力墙支墩 转换桁架 特别不规则 动力弹塑性分析 抗震性能分析 |
| 英文关键词: shear wall pier transfer truss particularly irregular dynamic elasto-plastic analysis seismic performance analysis |
| 基金项目: |
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| 中文摘要: |
| 以某钢框架-混凝土剪力墙结构为工程背景，针对该结构中弧形转换桁架支承在4个核心筒剪力墙支墩上的特点，对整体结构及构件开展抗震性能分析。在小震作用下，采用YJK软件对整体结构进行弹性分析；在大震作用下，采用PKPM-SAUSAGE软件对结构进行动力弹塑性分析；在此基础上，选取大跨度转换桁架进行不同力学模型分析。针对框剪结构二道防线屈服耗能机制，模拟转换层上部框架两种出铰模型，探讨转换层上部刚度对桁架杆件应力和变形的影响；提出增强落地筒支墩抗力和桁架抗扭的概念加强措施。 |
| 英文摘要: |
| Taking a steel frame-concrete shear wall structure as the engineering background, this paper focuses on the structural characteristic that the curved transfer trusses are supported on four core tube shear wall piers, and conducts seismic performance analysis on the overall structure and key components. Under frequent earthquakes, YJK software is adopted to perform elastic analysis of the overall structure. Under rare earthquakes, PKPM-SAUSAGE software is used for dynamic elasto-plastic analysis of the structure. On this basis, large-span transfer trusses are selected to carry out analysis with different mechanical models. According to the yielding and energy dissipation mechanism of the second seismic defense line of frame-shear wall structures, two hinge formation models of the upper frame above the transfer story are simulated, and the influence of the upper stiffness of the transfer story on the stress and deformation of truss members is discussed. Finally, conceptual reinforcement measures to improve the resistance of core tube piers and the torsional resistance of transfer trusses are proposed. |
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