RC　ブザイ　ノ　キケン　ダンメン　キンボウ　デノ　トラス　キコウ

The uniform truss model is now getting wider acceptance in Japan for calculating shear strengths of reinforced concrete members. The model, however, has two theoretical weak points : (1) compressive stress of concrete is assumed to distribute uniformly even in critical sections of member, and (2) longitudinal reinforcement is assumed to be strong enoueh beyond its yield strength, both of which contradict flexural analysis. This paper presents truss models which yield realistic stress distribution harmonious with flexural analysis. The models vary slightly in accordance with the amount of axial load, but they give almost same shear strength as the prevailing uniform truss model