现行《混凝土结构设计规范))(GBJ10-89)和《砌体结构设计规范》(GBJ3—88)给出的结构构件按承载力极限状态设计的基本表达式为:混凝土构件:γ_0S≤R(f_c,f_s,a_k…) (1)砌体构件:γ_0S≤R(f_d,a_k…) (2)上述两个公式表示什么意思?应该怎样去理解呢?一、公式(1)、(2)的含义1.公式(1)、(2)是用不等式的形式表示的。不等式左边的 S 为内力组合设计值,即结构构件在荷载设计值作用下产生的内力(如弯矩 M、剪力Vy轴力 N 等)经组合后得到的设计值;γ_0 为结构构件的重要性系数。它是 The basic design of the structural members according to the ultimate state of bearing capacity given in the current “Specifications for Design of Concrete Structures” (GBJ10-89) and “Code for Design of Masonry Structures” (GBJ3-88) is: Concrete Member: γ_0S≤R ( F_c,f_s,a_k...) (1) Masonry members: γ_0S≤R(f_d,a_k...) (2) What does the above two formulae mean and how should they be understood?1. Formulas (1), (2) Meanings 1. Formulas (1) and (2) are expressed in terms of inequalities. The left side of the inequality S is the internal force combination design value, that is, the design value of the internal force (such as bending moment M, shear force Vy axial force N, etc.) generated by the structural member under the load design value; γ_0 is an important component of the structural member. Coefficient of sex. it is