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一、砖砌外墙各墙肢及连系梁的强度按下列方法验算。强度设计安全系数按表1采用。二、砖墙肢轴心和偏心受压强度按砖石结构设计规范GBJ3—73第16～19条的规定计算。墙肢计算高度取楼层高度h,计算墙肢截面面积A及截面抵抗距W时,可考虑混凝土组合柱的作用。大偏心受压墙肢如按GBJ3—73第19条计算,不满足要求时,则可按下列公式计算组合柱的竖向钢筋A_(g1)(图1)。
1. The strength of each wall limb and tie beam of a brick wall is checked according to the following method. The strength design safety factor is according to Table 1. Second, the axial strength and eccentric compression strength of the brick wall limb shall be calculated according to the provisions of Article 16-19 of the Design Code for Masonry Structure GBJ 3-73. When the height of the wall limbs is taken as the height h of the floor, and the cross-sectional area A of the wall and the resistance distance W of the cross-section are calculated, the effect of the concrete column can be considered. If a large eccentric pressure wall is calculated according to Article 19 of GBJ3-73, if it does not meet the requirements, the vertical reinforcement A_(g1) of the combined column can be calculated according to the following formula (Fig. 1).