Vertical seismic response analysis of long-span composite open-web grid floor
International Journal of Structural Integrity
ISSN: 1757-9864
Article publication date: 11 May 2020
Issue publication date: 13 April 2021
Abstract
Purpose
The purpose of this paper is to study the dynamic characteristics and seismic performance of the composite open-web grid floor structure.
Design/methodology/approach
Studied by using mode-superposition response spectrum method and time history analysis method.
Findings
The results show that the vertical mode-superposition response spectrum method is close to the time history analysis method. The floor has strong seismic performance, and the deflection and internal force are not large under vertical seism. The vertical seismic action suggested that 10% of the representative value of gravity load should be used to ensure the safety of the structure.
Originality/value
In the design, the mid-span section should be properly strengthened or the variable section design should be adopted.
Keywords
Acknowledgements
The work is supported by Hunan Provincial Natural Science Foundation Youth Project (2019j50559) and Hunan Provincial Department of education excellent youth project (18b430).
Citation
Yang, Q., Ma, K., Zhang, H., Wei, Y. and Xiang, Z. (2021), "Vertical seismic response analysis of long-span composite open-web grid floor", International Journal of Structural Integrity, Vol. 12 No. 2, pp. 340-355. https://doi.org/10.1108/IJSI-03-2020-0025
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited