Determination of lateral strength and ductility characteristics of existing mid-rise RC buildings in Turkey

Uçar T., Merter O., Duzgun M.

COMPUTERS AND CONCRETE, cilt.16, sa.3, ss.467-485, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 16 Sayı: 3
  • Basım Tarihi: 2015
  • Doi Numarası: 10.12989/cac.2015.16.3.467
  • Dergi Adı: COMPUTERS AND CONCRETE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.467-485
  • Anahtar Kelimeler: existing reinforced concrete buildings, nonlinear static analysis, characteristic points of capacity curves, yield base shear coefficient, displacement ductility factor, REINFORCED-CONCRETE BUILDINGS, FORCE REDUCTION FACTORS, SEISMIC DESIGN, DISPLACEMENT DUCTILITY, OVERSTRENGTH, PROVISIONS, CURVATURE, COLUMNS, MOTIONS, WALLS
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This paper presents a comprehensive work on determination of yield base shear coefficient and displacement ductility factor of three to eight story actual reinforced concrete buildings, instead of using generic frames. The building data is provided by a walkdown survey in different locations of the pilot areas. Very detailed three dimensional models of the selected buildings are generated by using the data provided in architectural and reinforcement projects. Capacity curves of the buildings are obtained from nonlinear static pushover analyses and each capacity curve is approximated with a bilinear curve. Characteristic points of capacity curve, the yield base shear capacity, the yield displacement and the ultimate displacement capacity, are determined. The calculated values of the yield base shear coefficients and the displacement ductility factors for directions into consideration are compared by those expected values given in different versions of Turkish Seismic Design Code. Although having sufficient lateral strength capacities, the deformation capacities of these typical mid-rise reinforced concrete buildings are found to be considerably low.