Size-dependent response of dowel action in R.C. members

Ince R., Yalcin E., Arslan A.

Engineering Structures, cilt.29, sa.6, ss.955-961, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Sayı: 6
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.engstruct.2006.07.006
  • Dergi Adı: Engineering Structures
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.955-961
  • Anahtar Kelimeler: reinforced concrete, dowel action, fracture mechanics, Bazant's size effect law, DIAGONAL SHEAR FAILURE, CONCRETE BEAMS, STRUCTURAL STRENGTH, FRACTURE ENERGY, BEHAVIOR, STIRRUPS, TESTS
  • Gazi Üniversitesi Adresli: Evet

Özet

Experimental investigations on concrete indicate that for the same specimen geometry, the nominal strength of the specimen decreases with increasing specimen size. This phenomenon is called the size effect in fracture mechanics of concrete/reinforced concrete. In the present study, five series of push-off specimens of four different sizes but geometrically similar were tested in order to investigate the role of the size effect on dowel action and on to the bearing capacity of cracked reinforced concrete members. The maximum loads obtained from the test results were analysed by Bazant's size effect law and the results were compared with the test data existing in the literature. In conclusion, the observed size effect is sizable and in good agreement with the size effect law. © 2006 Elsevier Ltd. All rights reserved.