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| Title: | EXPERIMENTAL STUDY ON SUPER HIGH RISING BUILDING | |
| DOI No: | 10.1142/9789812701480_0034 | |
| Source: | TALL BUILDINGS (pp 208-214) | |
| Author(s): | XILIN LU
State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University, Shanghai 200092, China YUN ZOU Civil Engineering department Southern Yangtze University, Wuxi Jiangsu 214122, China State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University, Shanghai 200092, China WENSHENG LU State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University, Shanghai 200092, China BIN ZHAO State Key Laboratory for Disaster Reduction in Civil Engineering Tongji University, Shanghai 200092, China |
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| Abstract: | The height of 101-story Shanghai World Financial Center Tower is 492m above ground making it possible the tallest building in the world when completed. Three parallel structural systems including mega-frame structure, the reinforced concrete and braced steel services core and the outrigger trusses, are combined to resist lateral loads. The building could be classified as a vertically irregular structure due to a number of stiffened and transfer stories in the building. According to Chinese Code – Technical specifications for concrete structures of tall building (JGJ3-2002), the height of the building clearly exceeds the stipulated maximum height of 190m for a composite frame/reinforced concrete core building. The aspect ratio of height to width also exceeds the stipulated limit of 7 for seismic fortification intensity 7. A 1/50 scaled model is made and tested on shaking table under a series of two-dimensional base excitations with gradually increasing acceleration amplitudes. This paper presents the dynamic characteristics, the seismic responses and the failure mechanism of the building. The test results demonstrate that the structural system is the optimum solution to withstand earthquakes. The inter-story drift and the overall behavior meet the requirements of Chinese Code. Furthermore, weak positions under seldom-occurred earthquakes of seismic fortification intensity 8 are pointed out based on the visible damages, and corresponding suggestions are proposed for the engineering design purposes. | |
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