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

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Çelebi O. , Bayrak B. , Alcan H. G. , Aydın A. C.

Internatioanal Congress on the Phenomenological Aspects of Civil Engineering Structures, Erzurum, Turkey, 20 - 23 June 2021, vol.1, no.1, pp.539-544

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Erzurum
  • Country: Turkey
  • Page Numbers: pp.539-544


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.