JCI Annual Convention in Matsuyama

Presentation information

The 46th JCI Technical Conference

B. Structural & Design » Structural design & Design method/Fracture mechanics

Structural design & Design method/Fracture mechanics

Wed. Jun 26, 2024 10:00 AM - 12:00 PM Room 7 (大展示場C)

座長:土屋智史(土木),真田靖士(建築)

[2004] EFFECT OF REINFORCEMENT ARRANGEMENT ON STRUCTURAL PERFORMANCE OF DAPPED-END BEAMS

Wanakorn PRAYOONWET1, Yasuhiko Sato1, Wanchai YODSUDJAI2 (1.Waseda University 2.Kasetsart University)

Keywords:dapped-end beams、reinforcement arrangement、structural performance、structural design

The structural performance of dapped-end beams, reinforced with either diagonal or hanger rebars in the disturbed region, is investigated through nonlinear finite element analysis. The results indicate that a dapped-end beam reinforced with diagonal rebars shows greater capacity, stiffness, and crack restraint compared to one reinforced with hanger rebars. However, excessive horizontal cracking at the re-entrant corner may occur when using only diagonal rebars under higher load levels. Therefore, an enhanced structural design of the dapped-end beam is suggested by integrating both diagonal and hanger rebars.