Abstract
The seismic behavior of a structural system composed of pre-stressed concrete stand supporting a retractable steel roof was studied, which is typically based on the prototype of engineering project of Shanghai Qizhong Tennis Center. By elasto-plastic finite element analysis and shaking table test, the following were investigated: the effects of roof configurations in opening and closing, the effect of pre-stress on the structural seismic response, and the failure mechanism of the spatial stand frame systems featured with circularly arranged columns and inverse-cone type stands. It was found that the roof status has great effect on the natural period, vibration modes, and seismic response of the whole structure, the stand response to horizontal seismic excitation is stronger in roof opening configuration than in closing state, and the response mode is dominantly translational rather than rotational, though the stand is characterized by its fundamentally torsional vibration mode. The study indicated that the pre-stressed inverse-cone stands can keep the system from global side-sway collapse under gravity loads, even in the case that most columns loose moment capacity.
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Translated from China Civil Engineering Journal, 2007, 40(8): 22–28 [译自: 土木工程学报]
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Chen, Y., Zhang, D., Xue, W. et al. Seismic performance of prestressed concrete stand structure supporting retractable steel roof. Front. Archit. Civ. Eng. China 3, 117–124 (2009). https://doi.org/10.1007/s11709-009-0024-3
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DOI: https://doi.org/10.1007/s11709-009-0024-3