Version 1
: Received: 4 June 2024 / Approved: 5 June 2024 / Online: 5 June 2024 (08:25:05 CEST)
How to cite:
Tao, W.; Fu, J.; Li, Y. A Study on Possibility of Detrimental Effects of Soil-Structure Interaction in Seismic Design Due to a Shift of System Frequency. Preprints2024, 2024060248. https://doi.org/10.20944/preprints202406.0248.v1
Tao, W.; Fu, J.; Li, Y. A Study on Possibility of Detrimental Effects of Soil-Structure Interaction in Seismic Design Due to a Shift of System Frequency. Preprints 2024, 2024060248. https://doi.org/10.20944/preprints202406.0248.v1
Tao, W.; Fu, J.; Li, Y. A Study on Possibility of Detrimental Effects of Soil-Structure Interaction in Seismic Design Due to a Shift of System Frequency. Preprints2024, 2024060248. https://doi.org/10.20944/preprints202406.0248.v1
APA Style
Tao, W., Fu, J., & Li, Y. (2024). A Study on Possibility of Detrimental Effects of Soil-Structure Interaction in Seismic Design Due to a Shift of System Frequency. Preprints. https://doi.org/10.20944/preprints202406.0248.v1
Chicago/Turabian Style
Tao, W., Jia Fu and Yugang Li. 2024 "A Study on Possibility of Detrimental Effects of Soil-Structure Interaction in Seismic Design Due to a Shift of System Frequency" Preprints. https://doi.org/10.20944/preprints202406.0248.v1
Abstract
Soil-structure interaction (SSI) leads to a modification of dynamic properties of a structure, but due to the complexity on analysis, it is traditionally assumed in seismic designs that the structure is fixed-supported at the ground, which unavoidably gives potential dangers to seismic performances of the structure. This study focuses on the possibility of the detrimental effects of SSI by comparing the dynamic responses of SSI system to fixed-base structure. The SSI model consists of an oscillator, a three-dimensional foundation and a multilayered half-space. In indirect boundary element method is employed, combined with non-singular Green’s functions of distributed loads to calculate the foundation impedances for substructure method. Although the SSI mechanism dampens peak amplitude of structure response in frequency domain, case studies on four buildings to 42 earthquakes in time history show a possibility of 15%-20% that SSI amplifies the dynamic responses, depending on the frequency component of incident waves. Also, a neural network algorithm is proposed to provide a new idea of involving SSI analysis into the traditional seismic designs, to eliminate potential hazards of SSI.
Keywords
Soil-structure interaction; Indirect boundary element method; Foundation impedances; System frequency; System responses; Detrimental effects; Beneficial effects; Seismic design
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
