大跨越钢管塔双平臂抱杆的风致响应
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黄铭枫,魏歆蕊,叶何凯,叶建云,楼文娟
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Wind-induced response of crane structure with double flat arms for long-span transmission towers
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Ming-feng HUANG,Xin-rui WEI,He-kai YE,Jian-yun YE,Wen-juan LOU
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表 3 双平臂抱杆结构整体风力系数对比 |
Tab.3 Comparisons of aerodynamic force coefficients for complete crane structure with double flat arms |
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平臂姿态 | $\theta $/(°) | Cx | 误差/% | Cy | 误差/% | 文献[18] | 风洞试验 | 文献[18] | 风洞试验 | 0° | 0 | 2.23 | 2.26 | −1.33 | 0 | −0.03 | | 0° | 45.0 | 1.71 | 1.89 | −9.52 | 1.56 | 1.68 | −7.14 | 0° | 90.0 | 0 | 0.23 | | 1.90 | 1.72 | 10.47 | 22.5° | 22.5 | 2.07 | 2.13 | −2.82 | 0.92 | 1.04 | −11.54 | 22.5° | 67.5 | 0.93 | 1.02 | −8.82 | 1.83 | 2.26 | −19.03 | 22.5° | 112.5 | −0.79 | −0.53 | 49.06 | 1.76 | 1.81 | 2.76 | 45° | 45.0 | 1.79 | 1.58 | 13.29 | 1.79 | 1.90 | −5.79 | 45° | 90.0 | 0.11 | 0.17 | −35.29 | 2.02 | 2.24 | −9.82 | 45° | 135.0 | −1.55 | −1.14 | 35.96 | 1.55 | 1.41 | 9.93 |
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