Seismic Isolation Analysis of a Multi-Story Frame Structure

Yong Sun, Shaohong Pan, Yanfeng Zhao

2024

Abstract

Taking a nursing home in Yunnan Province as an example, this paper analyzes the isolation control of the superstructure with the base isolation measures.Using the convenience of YJK modeling, the structural model is built in YJK, and the YJK-ETABS model is converted through the built-in interface of YJK software.Using the fast nonlinear analysis FNA method, the nonlinear mode integration method is used to analyze the non-isolated and isolated structures under forcing-resistant earthquakes and rare earthquakes respectively. The results show that:Through horizontal deformation, the isolation bearing can effectively dissipate the seismic force, prolong the basic period of the building structure, increase the damping of the overall structure, greatly avoid the characteristic period of the site, and play an obvious filtering effect on the high-frequency energy in the seismic wave.The structural system is changed into a flexible system, and the seismic isolation idea is changed from the traditional hard seismic resistance to soft seismic isolation, thus isolating the seismic energy transfer to the superstructure to a large extent, reducing the structural dynamic response, and achieving the purpose of seismic isolation control.The isolation effect of the superstructure after using the isolation device is remarkable, which can meet the seismic demand of the structure.

Paper Citation

in Harvard Style

Sun Y., Pan S. and Zhao Y. (2024). Seismic Isolation Analysis of a Multi-Story Frame Structure. In Proceedings of the 7th International Conference on Environmental Science and Civil Engineering - Volume 1: ICESCE; ISBN 978-989-758-764-1, SciTePress, pages 145-151. DOI: 10.5220/0013581000004671

in Bibtex Style

@conference{icesce24,
author={Yong Sun and Shaohong Pan and Yanfeng Zhao},
title={Seismic Isolation Analysis of a Multi-Story Frame Structure},
booktitle={Proceedings of the 7th International Conference on Environmental Science and Civil Engineering - Volume 1: ICESCE},
year={2024},
pages={145-151},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0013581000004671},
isbn={978-989-758-764-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Environmental Science and Civil Engineering - Volume 1: ICESCE
TI - Seismic Isolation Analysis of a Multi-Story Frame Structure
SN - 978-989-758-764-1
AU - Sun Y.
AU - Pan S.
AU - Zhao Y.
PY - 2024
SP - 145
EP - 151
DO - 10.5220/0013581000004671
PB - SciTePress