600kgf/cm^2級高強度コンクリートを用いたRC柱の実用せん断設計式

概要

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This paper presents a method of calculation of ultimate shear strength to high strength concrete R/C columns, based on the plastic theory, which gave a fair estimation of test results. The presented ultimate shear strength are functions of the factor of effective compressive strength of concrete; ν_c and an upper limit of the yield stress of transverse reinforcement; ν_s The factor of ν_s were estimated by the distribution of the maximum stress of transverse reinforcements on the ultimate shear strength stage, which were tested from thirty column specimens. Substituting ultimate shear strength from experiments and the factor of ν_s estimated from experiments into calculation of shear strength based on the plastic theory, the factor of ν_c were estimated. Thirty column specimens using high strength concrete of 48MPa 〜 120MPa grade and high strength longitudinal reinforcing bars of 700MPa 〜 1000MPa grade and transverse reinforcing bars of 345MPa 〜 1300MPa grade were tested.
一般社団法人日本建築学会の論文
1996-03-20