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| 某超高层裙房带混凝土转换桁架结构的不同力学模型分析 |
| Analysis of Different Mechanical Models for the Podium of a Super High-rise Building with Concrete Conversion Truss Structure |
| 投稿时间：2024-05-10 修订日期：2024-06-04 |
| DOI： |
| 中文关键词: 混凝土转换桁架 超高层带裙房结构 有限元分析 弹塑性分析 抗震性能分析 |
| 英文关键词: concrete transfer truss super high-rise with podium structure finite element analysis elasto-plastic analysis seismic performance analysis |
| 基金项目:装配式混凝土夹芯保温墙用FRP连接件火灾后力学性能研究 |
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| 中文摘要: |
| 以合肥某超高层带裙房结构的东北角角柱不能落地情况为例，采用多种数值模拟方法对带斜撑的混凝土转换桁架结构抗震性能展开研究。在多遇地震下，分别采用SATWE程序对整体结构弹性分析和ABAQUS有限元软件对转换桁架区域隔离体弹性分析；在罕遇地震下，采用Midas Building软件分别对整体结构进行了静力弹塑性分析和动力弹塑性时程分析。不同的力学模型对比分析和算例考核结果表明转换桁架对主体结构的侧移刚度影响有限，混凝土转换桁架在没有内置型钢的情况下可满足工程使用安全，有一定的工程应用价值。 |
| 英文摘要: |
| In the case of a super high-rise building with a podium in Hefei, where the northeast corner column cannot be grounded, various numerical simulation methods were employed to study the seismic performance of a concrete transfer truss structure with braces. For frequent seismic conditions, the SATWE program was used for the elastic analysis of the overall structure, and the ABAQUS finite element software was used for the elastic analysis of the isolated bodies in the transfer truss area. For rare seismic events, the Midas Building software was utilized to perform both static elastoplastic analysis and dynamic elastoplastic time-history analysis of the entire structure. Comparative analysis of different mechanical models and assessment of case studies indicate that the transfer truss has limited impact on the lateral stiffness of the main structure. The concrete transfer truss, without built-in steel profiles, can meet safety requirements for engineering applications, demonstrating significant engineering value. |
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