Abstract
Seismic demands of a curtain wall (CW) relate to the floor response of the main structure. These demands include both acceleration and deformation. Floor capacity spectrum combines these demands into one acceleration-displacement response spectrum (ADRS) representing the CW as a single degree of freedom system. The in-plane (IP) load–displacement relationship can be transformed to the acceleration-displacement format (capacity curve) of the ADRS. The intersection of the capacity curve and the ADRS is the performance point (PP) of the CW system. Another way to determine the PP is through the floor response analysis of the main structure where the pairs of acceleration and displacement demands form the demand PPs. In shaking table testing of the CW system, the two coordinates of the PP can be simulated by applying the IP deformation with a specially designed loading frame, then exciting the test specimen by the shaking table in the out-of-plane direction. PPs are accurately reproduced and the seismic performance of the CW system is evaluated. The applicability and reliability of this novel shaking table test method are discussed in this paper.
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Acknowledgments
This work was supported by China National Science and Technology Major Project under award number 2013ZX06005004-002-001 and China National Science Foundation under award numbers 51078290 and 51578405. This support is greatly acknowledged. The second and fourth authors recognize the additional funding from the Republic of Singapore’s National Research Foundation through a grant to the Berkeley Education Alliance for Research in Singapore (BEARS) for Singapore-Berkeley Building Efficiency and Sustainability in the Tropics (SinBerBEST) Program. BEARS has been established by the University of California, Berkeley as a center for intellectual excellence in research and education in Singapore. The authors thank Dr. Selim Günay of UC-Berkeley for his valuable comments on this paper.
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Lu, W., Huang, B., Chen, S. et al. Shaking table test method of building curtain walls using floor capacity demand diagrams. Bull Earthquake Eng 15, 3185–3205 (2017). https://doi.org/10.1007/s10518-016-9866-y
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DOI: https://doi.org/10.1007/s10518-016-9866-y