考虑风速风向分布的干煤棚结构风振疲劳分析

黄铭枫,叶何凯,楼文娟,孙轩涛,叶建云

Wind-induced vibration and fatigue analysis of long span lattice structures considering distribution of wind speed and direction

Ming-feng HUANG,He-kai YE,Wen-juan LOU,Xuan-tao SUN,Jian-yun YE

表 2 50°风向角下10根关键杆件疲劳损伤计算结果对比

Tab.2 Comparison of fatigue damage results of 10 key members under 50° wind

杆件序号 D/10−8 w/% 雨流法 等效应力法 等效窄带法 等效宽带法 等效应力法 等效窄带法 等效宽带法 1 30.44 46.55 38.91 32.65 52.92 27.83 7.26 2 29.19 42.12 35.79 32.89 44.30 22.62 12.70 3 17.23 23.39 21.06 20.74 35.75 22.20 20.37 4 15.05 22.25 18.02 13.19 47.89 19.76 −12.37 5 12.66 15.87 15.32 15.97 25.33 21.01 26.10 6 8.61 9.94 11.05 11.05 15.45 28.34 28.34 7 6.50 9.82 9.08 6.63 51.05 39.66 1.87 8 6.46 6.87 8.34 9.06 6.38 29.12 40.17 9 5.14 6.41 6.80 5.59 24.72 32.31 8.79 10 4.36 5.17 5.60 5.23 18.57 28.31 19.98