DOI: 10.5176/2301-394X_ACE18.191
Authors: Youyi Xiong and Chonghou Zhang
Abstract:
Architecture is the embodiment of human civilization. With the development of society, architecture is evolving, the rise of high-rise buildings is the result of the development of human science, technology, and civilization. The diversity of high-rise architecture design program requires more technique support from structural systems. Among myriads types of architecture, the twisted diagrid tube structure system by right of its graceful shape gives us the enjoyment of beauty. The twisted diagrid tube structure is to make the conventional diagrid tube structure rotate layer by layer. However, the research on twisted diagrid tube structure is not that explicit, especially the mechanical performance of the structure’s components when it comes to seismic circumstance. In this paper, we build a series of finite element models of twisted diagrid tube structure to explore the influence of general components arrangement on the properties of the entire structure. In particular, the horizontal cross-section is square, not like the most existing twisted buildings which smooth the corner to avoid the turning point. Under the circumstance of seismicity zones, the stress of each component and other performance was revealed. After analyzing the different results caused by the change of parameters, the impact of rotation angle (or the degree of distortion), aspect ratio (or the ratio of height to width) and the interlayer spacing between two adjacent main ring beams on the structural performance was evaluated.
Keywords: twisted diagrid tube structure; distortion degree; turning point; seismicity; rotation angle; ratio of height to width
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