The concusions are obtained from the curves of optimization calculation results :rigidness and distance between reinforcemeuts increase as increasing flue thickness.

• 由优化计算结果曲线得出了结论:烟道壁厚增加可使其刚度和加固肋间距增加,若采用H型钢加固肋,效果更为明显,可节省大量钢材造价和布置空间。