A simplified method for free vibration analysis of wall-frames considering soil structure interaction


Kera D., BOZDOĞAN K. B., KESKİN E.

STRUCTURAL ENGINEERING AND MECHANICS, cilt.77, sa.1, ss.37-46, 2021 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 77 Sayı: 1
  • Basım Tarihi: 2021
  • Doi Numarası: 10.12989/sem.2021.77.1.037
  • Dergi Adı: STRUCTURAL ENGINEERING AND MECHANICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), Communication Abstracts, Compendex, Metadex, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.37-46
  • Anahtar Kelimeler: soil structure interaction, wall-frame, continuum model, free vibration, finite element method, TALL BUILDING STRUCTURES, APPROXIMATE ANALYSIS, FUNDAMENTAL PERIOD, HIGHRISE BUILDINGS, SHEAR WALLS, FREQUENCIES, BEAM, SECTION, TOWER
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this study, a method for free vibration analysis of wall-frame systems built on weak soil is proposed. In the development of the method, the wall-frame system that constitutes the superstructure was modeled as flexural-shear beam. In the study, it is accepted that the soil layers are isotropic, homogeneous and elastic, and the waves are only vertical propagating shear waves. Based on this assumption, the soil layer below is modeled as an equivalent shear beam. Then the differential equation system that represented the behavior of the whole system was written for both regions in a separate way. Natural periods were obtained by solving the differential equations by employing boundary conditions. At the end of the study, two examples were solved and the suitability of the proposed method to the Finite Element Method was evaluated.