双向偏心受拉构件截面设计方法探讨

A Study on Design of Cross-Sections of Reinforced Concrete Members Subjected to Combined Biaxial Bending and Tension

1 基本公式 [1]提出了下列对称配筋矩形截面钢筋混凝土双向偏心受拉构件正截面强度计算公式,并已列入我国新的《混凝土结构设计规范》中: N≤N_u=1/(1/N_(uO)+e_0/M_u) (1)式中 N——双向偏心受拉构件的设计轴向拉力; N_u——构件双向偏心受拉时的抗拉强度;

According to the linear relation between M, N and M_(?), N_((?)o) of reinforced concrete members subjected to comined biaxial bending and tension, some equations are derived, which make the design of members with combined biaxial bending and tension turn into that of members with axial tension. The method is simple, convenient for computing, and could be a reference for engineers.