连体结构受力性态分析与工程实践

引用文献:

吴宏磊 丁洁民 刘博. 连体结构受力性态分析与工程实践[J]. 建筑结构,2022,48(14) -页码:7-16.

WU Honglei DING Jiemin LIU Bo. Mechanical behavior analysis and engineering practice of conjoined structure[J]. Building Structure,2022,48(14) -页码:7-16.

作者:吴宏磊 丁洁民 刘博
单位:同济大学建筑设计研究院集团)有限公司 同济大学建筑工程系
摘要:高层建筑连体结构通过连接体将不同塔楼连在一起,相比常规独栋塔楼,受力性能更为复杂,对结构分析和设计提出了更高的要求。从连体结构基本力学概念出发,首先介绍了高层连体结构受力特点,针对典型工程案例,分析对比了与不同塔楼结构形式相适应的连接方式。从结构整体受力、变形以及连接体的受力变形等方面,对连接体的选型与设计进行了剖析,总结了不同连接形式的受力特点、适用情况和设计原则。对不同工程案例的分析表明,对柔性连接连体结构,连接体对整体结构受力性态基本无影响,可按单塔和连接体分别设计;而刚性连接连体结构,连接体对整体结构的自振特性、变形特点和受力情况的影响不容忽视,需进行单塔和整体结构的包络设计。
关键词:高层建筑;连体结构;柔性连接;刚性连接;受力性态
作者简介:吴宏磊,博士,教授级高级工程师,主要从事复杂结构研究设计工作,Email:8whl@tjad.cn。刘博,博士,高级工程师,主要从事复杂结构研究设计工作,Email:52lb@tjad.cn。
基金: -页码:7-16
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Mechanical behavior analysis and engineering practice of conjoined structure
WU Honglei DING Jiemin LIU Bo
(Tongji Architectural Design (Group) Co., Ltd. Department of Building Engineering, Tongji University)
Abstract: The conjoined structure of high-rise buildings connects different towers together through connectors. Compared with conventional single-family towers, the mechanical performance is more complex, which puts forward higher requirements for structural analysis and design. Starting from the basic mechanical concept of the conjoined structure, the stress characteristics of the high-rise conjoined structure were firstly introduced. According to the typical engineering cases, the connection methods suitable for different tower structures were analyzed and compared. The selection and design of the connecting body were analyzed from the aspects of the overall stress and deformation of the structure and the stress and deformation of the connecting body. The stress characteristics, applicable conditions and design principles of different connecting forms were summarized. The analysis of different engineering cases shows that, for the flexible connected conjoined structure, the connecting body has basically no effect on the mechanical behavior of the overall structure, and can be designed according to the single tower and the connecting body respectively. While for the rigid connecting conjoined structure. The influence of the natural vibration characteristics, deformation characteristics and stress conditions of the overall structure can not be ignored, and the envelope design of the single tower and the overall structure should be carried out.
Keywords: high-rise building; conjoined structure; flexible connection; rigid connection; mechanical behavior
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