《砖石结构设计规范(GBJ3-73)》第五章第32条列有钢筋砖过梁的设计和计算的规定: 1.按砌体受弯时的剪力,计算受剪; 2.按下式计算受弯: K_pM≤h_oA_gR_g (1)式中K_p——安全系数,采用2.0; M——按简支梁计算的跨中弯矩; A_g——受拉钢筋的截面面积: R_g——钢筋的抗拉设计强度; h_o——过梁截面的有效高度,h_o =h-a; a——钢筋A_g重心至截面最近边缘的距离; Rules for the design and calculation of reinforced concrete lintels are listed in Chapter 32 of the Code for Design of Masonry Structures (GBJ3-73). 1. Calculate the shear resistance according to the shear force of the masonry when bent; 2. Press The following formula is used to calculate the bending: K_pM ≤ h_oA_gR_g (1) where K_p is the safety factor, and 2.0 is used; M is the mid-span moment calculated from the simply supported beam; A_g is the cross-sectional area of ​​the tensioned rebar: R_g - Reinforced steel tensile design strength; h_o—effective height of cross-section beam, h_o =ha; a—distance between center of gravity of rebar A_g and the nearest edge of the cross-section;