American Society of Civil Engineers


Performance-Based Seismic Evaluation of Wuhan Center


by Dennis C. K. Poon, P.E., (Vice Chairman, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: dpoon@thorntontomasetti.com), Ling-en Hsiao, (Senior Principal, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: lhsiao@thorntontomasetti.com), Yi Zhu, (Senior Principal, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: yzhu@thorntontomasetti.com), Jian Zhou, (Chief Engineer, ECADI, 151 Hankou Rd., Shanghai, China E-mail: jian_zhou@ecadi.com), Steve Zuo, P.E., (Vice President, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: szuo@thorntontomasetti.com), Michael Jiang, (Associate, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: mjiang@ThorntonTomasetti.com), and Zheng-Gui Ma, (Senior Engineer, Thornton Tomasetti, Inc., 51 Madison Ave., New York, NY 10010 E-mail: zma@ThorntonTomasetti.com)
Section: Recent Advancements in Collapse Assessment of Structures under Earthquakes, pp. 510-520, (doi:  http://dx.doi.org/10.1061/9780784412374.045)

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Document type: Conference Proceeding Paper
Part of: 20th Analysis and Computation Specialty Conference
Abstract: This paper discusses the analysis procedure adopted for the performance evaluation of Wuhan Center in Wuhan City, China. The 88-story, 438-meter tower will become the tallest building in central area China upon completion. The selected structural system consists of a composite concrete core, five exterior belt trusses, three sets of steel outriggers and 16 concrete filled steel pipe super columns. Given the scale and importance of this building, a rather sophisticated evaluation of seismic performance during a severe earthquake (2% probability in 50 years or 2475-year return period) was performed. Two synthetic and five recorded ground motions were selected for the nonlinear time-history analysis. These ground motions were scaled to meet China Seismic Code provisions BG50011-2010. The performance levels for immediate occupancy, life safety and collapse prevention were set based on ASCE 41-06, "Seismic Rehabilitation of Existing Buildings" (2006). Complex 3-D computer models with geometric and material nonlinearities were generated for nonlinear dynamic time-history analyses. The detailed performance assessments of main structural elements such as coupling beams, core walls, super columns, outriggers and belt-trusses are presented in this paper.


ASCE Subject Headings:
China
Seismic effects
High-rise buildings