A Method for Determination of the Fundamental Period of Layered Soil Profiles

ÖZTÜRK D., BOZDOĞAN K. B.

JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS, cilt.3, sa.4, ss.267-273, 2017 (ESCI) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 3 Sayı: 4
  • Basım Tarihi: 2017
  • Doi Numarası: 10.22055/jacm.2017.21810.1116
  • Dergi Adı: JOURNAL OF APPLIED AND COMPUTATIONAL MECHANICS
  • Derginin Tarandığı İndeksler: Emerging Sources Citation Index (ESCI), Scopus
  • Sayfa Sayıları: ss.267-273
  • Anahtar Kelimeler: Finite element, Soil profile, Fundamental period, Transformation, Transfer matrix, FREE-VIBRATION
  • Çanakkale Onsekiz Mart Üniversitesi Adresli: Evet

Özet

In this study, a method is proposed to determine the fundamental period of layered soil profiles. A model considering the layered soil as shear type structure is used. At first, the soil profile is divided into substructures. Then, the stiffness matrices of the substructures considered as the equivalent shear structures are assembled according to the Finite Element Method. Thereinafter, the stiffness matrices of the substructures are transformed into the Modified Finite Element Transfer Matrices, which take part in the literature. Finally, the system matrix is assembled using matrices of the substructures. The proposed method provides reduction in the size of the matrix. Therefore, analysis time is remarkably reduced. At the end of the study, the accuracy of the method is presented by the examples. Consequently, the proposed method offers a practical method for determination of the fundamental period of the soil.