Seismic acceleration amplification factor model for non-structural components in RC frame structures

Authors

  • Ravinder Kumar Agrahari
  • K.K. Pathak
  • Abhishek Sharma

Keywords:

Time history data; non-structural component; peak horizontal floor acceleration; acceleration amplification factor.

Abstract

The Non-Structural Components (NSCs) of the structures require more awareness for seismic design so that it not only save the life but also minimise the economic loss. For the design of NSCs, the acceleration amplification factor is important, which is observed by inertia force exist in the building. Previous researchers worked in the field of amplification factor for higher hazard level and proposed that the amplification factor depends only on normalising height (ratio between height of the floor to total height of the building concerning base) and fundamental period of the structures for any peak ground motion, but it is found to be unsafe. However very few have paid attention to low to moderate hazard level. Even a low peak ground acceleration may amplify the strong acceleration significantly. In this paper, the peak horizontal floor acceleration of NSCs for low to moderate hazard level have been obtained. For this 2,4,6,8 and 10 stories moment-resisting RC frame models with low to moderate hazard level (0.01g-0.31g) have been considered. For the analysis 32 ground motion data in the range of 0.01g to 0.1g, 29 ground motion data in the range of 0.1g to 0.2g and 31 data in the range of 0.2g to 0.31g are considered using linear time history method. Based on analysis results, mathematical models are proposed to determine the absolute acceleration amplification factor. On comparison to other models it could be found that proposed mathematical models predict realistic values of acceleration for the safe design of NSCs.

Published

04-11-2024

How to Cite

Agrahari, R. K., Pathak, K., & Sharma, A. (2024). Seismic acceleration amplification factor model for non-structural components in RC frame structures. Journal of Structural Engineering, 47(3), 181–194. Retrieved from http://14.139.176.44/index.php/JOSE/article/view/378

Issue

Section

Articles