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 3 60°风向角下关键杆件截面尺寸、时均应力值及疲劳损伤

Tab.3 Section size, mean stress and fatigue damage of key members under 60° wind

杆件 D×t/(mm×mm) S/mm2 $\sigma $/MPa D/10−6 1 159×8 1 947 88.8 6.05 2 159×8 1 947 87.8 5.87 3 180×10 2 748 86.0 5.49 4 159×8 1 947 85.0 5.31 5 159×8 1 947 80.2 4.42 6 219×10 3 360 75.3 3.66 7 159×6 1 470 71.9 3.18 8 159×8 1 947 69.9 2.93 9 180×8 2 211 63.8 2.24 10 159×6 1 470 63.5 2.19