Investigation of Seismic Behavior of Soft Storey Structure in Frequency Time Domain

Investigation of Seismic Behavior of Soft Storey Structure in Frequency Time Domain

Phenomenological Aspects of Civil Engineering (PACE) - an International Congress
Volume 1 - Issue 1 - PACE-2021

Oğuzhan ÇELEBİ Barış Bayrak Abdulkadir Cüneyt Aydın Haluk Görkem Alcan

Abstract

Today, ground or basement floors of buildings are designed as soft floors for use as parking lots and workplaces. Therefore, the soft story of the structure under the effect of earthquake may show non-ductile behavior. In this study, a number of approaches have been proposed to improve the behavior of the soft story and ensure its usability. In order to eliminate the negative effects of the soft story, passive isolation systems were preferred as well as the use of central and external central braces. A computer-based Matlab program was used to understand the behavior of the structure in the frequency domain, and a finite element program was used to perform the related analysis. According to the analysis results, it has been determined that the use of the central and external center improves the behavior of the structure in appropriate frequency ranges, but the use of passive isolator systems is not suitable for the relevant structure. It has been confirmed that the passive isolators should be designed according to each structure and any possible earthquake feature.

Keywords

Frequency Domain, Passive Isolator, Soft Story, Center and External Center Members
https://www.acapublishing.com/dosyalar/baski/PACE_2021_397.pdf