JCI Annual Convention in KOBE

Presentation information

The 40th JCI Technical Conference

B.Structural & Design » Beam / Columnbeam connection

Beam I

Thu. Jul 5, 2018 9:30 AM - 12:00 PM Room 6 (9F CON2)

座長:佐々木亘(土木), 坂下雅信(建築)

[2024] EVALUATION OF CRACKING AND DEFORMATION BEHAVIOR OF RC BEAMS REINFORCED WITH HIGH STRENGTH REBAR

Usman Farooq1, Hikaru NAKAMURA2, Yoshihito YAMAMOTO2, Taito MIURA2 (1.Nagoya University 2.名古屋大学)

Keywords:crack space, crack width, curvature, high strength rebar, RBSM, ひび割れ幅, ひび割れ間隔, 曲率, 高強度鉄筋

This paper evaluated the effect of high strength rebar of SD685 on the cracking and deformation behavior. Four specimens with alternative combination of either SD345 or SD685 rebar along with either normal or high strength concrete were experimentally tested and result were compared with the equations in JSCE design standards about crack width, crack space and deformation behavior. To build comparative analytical study, 3D Rigid Body Spring Model (RBSM) was used and experimental results were validated. Extensive parametric study considering various reinforcement ratios and concrete covers was also conducted analytically by using RBSM and the applicability of JSCE equations was confirmed.