Flexural behavior of RC beams with regular square or circular web openings
ENGINEERING STRUCTURES, cilt.56, ss.2165-2174, 2013 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 56
- Basım Tarihi: 2013
- Doi Numarası: 10.1016/j.engstruct.2013.08.043
- Dergi Adı: ENGINEERING STRUCTURES
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2165-2174
- Anahtar Kelimeler: Web opening, Web reinforcement, Diagonal reinforcement, Reinforced concrete beam with openings, Vierendeel truss, REINFORCED-CONCRETE BEAMS, DEEP BEAMS, STRENGTH, DESIGN, TESTS
- Gazi Üniversitesi Adresli: Evet
Özet
This paper presents a study aimed at investigating the influence of multiple web openings along the length of an RC beam on its flexural behavior. A total of nine rectangular beams were tested. Diagonal reinforcement around openings effectively prevented premature failure of some specimens due to Vierendeel action, the expected failure mode according to bending moment-axial force interaction diagrams. Longitudinal rebars and full-depth stirrups adjacent to openings and short stirrups in the chords prevented beam-type and frame-type shear failures. The length of the plastic failure mechanism increased in the presence of multiple openings compared to beams with a single opening. (C) 2013 Elsevier Ltd. All rights reserved.