论文部分内容阅读
5.1 作用力 5.1.1 定义永久作用力和可变作用力的定义,与承载能力极限状态的定义相同(见4.1.1节)。预应力视为作用力:预加力应取其平均值(见3.4.2节)参见[6.3] 5.1.2 作用力的组合准永久组合G+P+∑Ψ_2Q_2(一般用于计算挠度) 常遇组合G+P+Ψ_1Q_1+ΣΨ_2Q_2(一般用于计算裂缝) 不常遇组合G+P+Q_1+∑Ψ_1Q_2 式中 Q_1=基本的可变作用力, Q_2=其他的可变作用力, Ψ_1Q=作用力的常遇值, Ψ_2Q=作用力的准永久值。
5.1 Forces 5.1.1 Definitions The definitions of permanent forces and variable forces are defined in the same way as the limit states of the carrying capacity (see section 4.1.1). The prestress is regarded as acting force: the prestress should be taken as the average value (see section 3.4.2). See [6.3] 5.1.2 Combination of quasi-permanent combinations of forces G+P+∑Ψ_2Q_2 (generally used to calculate deflection) The combination G+P+Ψ_1Q_1+ΣΨ_2Q_2 (generally used to calculate cracks) is not often encountered in the combination G+P+Q_1+∑Ψ_1Q_2 where Q_1 = basic variable force, Q_2 = other variable force, Ψ_1Q = force Frequently encountered values, Ψ_2Q = quasi-permanent value of force.