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增设连廊后,高层结构受力变得复杂,整体结构自振特性也随之发生变化。因此,本文以某非对称高层连廊结构为研究对象,利用通用有限元软件SAP2000建立三维空间有限元模型,分析整体结构振动特性。同时,分析了连廊连接方式、设计位置、连廊数量及两侧塔楼的非对称性程度等因素对整体结构的影响。结果表明,连廊采用刚接或铰接对结构自振特性几乎没有影响;设计中可考虑设置多个连廊,并将连廊设置于较高楼层位置;结构非对称性程度越大,结构扭转效应越明显,工程中应尽量避免。
After the addition of corridors, the high-rise structure becomes more complicated and the natural vibration characteristics of the whole structure also change. Therefore, in this paper, an asymmetric high-rise corridor structure is taken as the research object. The finite element model of three-dimensional space is established by using general finite element software SAP2000 to analyze the vibration characteristics of the whole structure. At the same time, the author analyzes the influence on the overall structure of the corridor connection, the design location, the number of corridors and the degree of asymmetry of the two towers. The results show that the connection between the corridors has no influence on the natural vibration characteristics of the structure. The corridors can be set in the design and the corridors can be set on the upper floors. The greater the degree of structural asymmetry, the more the structure is twisted The more obvious the effect, the project should be avoided.