基于遗传算法的钢柱翼缘补强系数优化计算

Optimum Calculation about Backing Factor of Steel Column Flange Based on Genetic Algorithm

钢结构中H型钢柱翼缘与梁常采用端板式高强螺栓刚性连接节点,计算所需的梁端板厚度通常比与其连接的柱翼缘部分的厚度大,柱翼缘部分必须进行补强设计。文献[3]推导出补强板厚度的计算公式,但补强系数的确定方式较粗略。文中采用遗传算法确定了补强系数的最优值。

In rigid joint of steel structure, high-strength bolt with end plate connection is extensively used where the beam is connected to the flange of H-shaped column. When the thickness of end plate is thicker than the thickness of column flange, the column flange must be stengthened. In literature , the formula for the thickness of backing plate is deduced. However, the calculating method is not enough precise. In the paper, optimum value of backing factor is obtained by genetic algorithm.