Effects of surface shapes and geotechnical conditions on the ground motion

DÜZGÜN O. A., BUDAK A.

KSCE JOURNAL OF CIVIL ENGINEERING, cilt.19, sa.5, ss.1336-1346, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 5
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1007/s12205-015-0304-5
  • Dergi Adı: KSCE JOURNAL OF CIVIL ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1336-1346
  • Anahtar Kelimeler: infinite elements, finite elements, ground motion, elastodynamics, site effects, topography, SOIL-STRUCTURE INTERACTION, ATHENS EARTHQUAKE, INFINITE ELEMENTS, RAYLEIGH-WAVES, SH WAVES, TOPOGRAPHY, SITE, SLOPE, SV, DIFFRACTION
  • Atatürk Üniversitesi Adresli: Evet

Özet

The influences of surface geometry and local soil properties on ground motion are parametrically studied. The system response is numerically evaluated. In the modelling, finite and infinite elements are applied. Three types of topography (single-faced slopes, canyons and ridges) are taken into account. According to the results, topographic conditions, depth of the rigid bedrock and geotechnical properties have significance in the alteration of ground motion at the irregular soil surface and its surroundings. For all selected surface shapes, the most critical cases occur at top corners especially when the slope gets steeper. These cases are independent on the natural period of structures. The results correspond with those earthquakes where topographical effects are observed and could be seemed to be worthwhile from the perspective of earthquake engineering and seismology.