| Title |
A Study on Shear Strength of Reinforced Concrete Beams according to Beam Effective Depth and Shear Reinforcement Spacing |
| Authors |
유인근(Yu, In-Geun) ; 박나정(Park, Na-Jeong) ; 백승민(Baek, Seung-Min) ; 김우석(Kim, Woo-Suk) ; 곽윤근(Kwak, Yoon-Keun) |
| DOI |
https://doi.org/10.5659/JAIK.2020.36.11.289 |
| Keywords |
Shear Reinforcement Ratio; Size Effect; Shear Strength |
| Abstract |
Although many studies have been conducted on some factors (i.e., tensile reinforcement ratio, shear span-to-depth ratio, concrete compressive
strength, and beam width-to-depth ratio) affecting the shear strength of concrete, studies on the effect of the cross-sectional size on the shear
strength have not been achieved. For this reason, the purpose of this study is to conduct a study on the shear strength of reinforced concrete
beams according to beam effective depth and shear reinforcement spacing. Based on these experimental results, the authors intend to use
them as basic data for shear design of reinforced concrete beams by comparing and analyzing theoretical values by standard equations such
as KBC 2016 and ACI 318-19 as well as proposed equations. As a result, each series of No.2 specimens (SH1-2, SH2-2 and SH3-2) with
max = 0.67d (d/s = 1.5) similar to max= 0.7d by the CSA standard is 1.00 to 1.41. It was found that the current standard for shear bars =
d/2 may be somewhat relaxed, but additional studies are needed to reflect this in the Korean Building Code. |