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研究了全约束条件下的钢筋混凝土矩形截面单筋梁离散变量优化设计。以符合设计条件的梁截面尺寸 ,主筋直径、根数 ,箍筋直径、间距为设计变量 ;以规范对单筋梁的正、斜截面强度、挠度、裂缝宽度及构造等要求为约束条件 ;以梁的单位长度造价为目标函数所进行的计算结果表明 ,优化方案是最佳的
The optimal design of discrete variables of single girder with rectangular cross section under full constraint condition is studied. In order to meet the design requirements of beam cross-section size, diameter of the main reinforcement, root number, stirrup diameter, spacing as a design variable; to regulate the normal and oblique cross-section of the single beam strength, deflection, crack width and structure requirements constraints; The calculation of the unit cost of the beam as the objective function shows that the optimization scheme is the best