横桥向地震作用对钢拱桥地震损伤发展的影响
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诸葛翰卿,谢旭,廖燕华,唐站站
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Effect of transverse earthquake action on development of seismic damage of steel arch bridges
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Han-qing ZHUGE,Xu XIE,Yan-hua LIAO,Zhan-zhan TANG
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| 表 2 中承式钢拱桥自振特性 |
| Tab.2 Natural vibration characteristics of half-through steel arch bridge |
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| 模态 | f/Hz | X | | Y | | Z | | 有效质量率 | 累积质量率 | | 有效质量率 | 累积质量率 | | 有效质量率 | 累积质量率 | | 1 | 0.657 | 0.14 | 0.14 | | 0.00 | 0.00 | | 0.00 | 0.00 | | 2 | 0.875 | 0.00 | 0.14 | | 0.89 | 0.89 | | 0.00 | 0.00 | | 3 | 1.083 | 0.00 | 0.14 | | 0.00 | 0.89 | | 0.00 | 0.00 | | 4 | 1.235 | 0.00 | 0.14 | | 0.00 | 0.89 | | 0.30 | 0.30 | | 5 | 1.544 | 0.00 | 0.14 | | 0.01 | 0.90 | | 0.00 | 0.30 | | 6 | 1.582 | 0.50 | 0.64 | | 0.00 | 0.90 | | 0.00 | 0.30 | | 7 | 1.642 | 0.00 | 0.64 | | 0.00 | 0.90 | | 0.00 | 0.30 | | 8 | 1.736 | 0.00 | 0.64 | | 0.00 | 0.90 | | 0.60 | 0.90 | | 9 | 2.062 | 0.00 | 0.64 | | 0.00 | 0.90 | | 0.01 | 0.91 | | 10 | 2.121 | 0.00 | 0.64 | | 0.01 | 0.91 | | 0.00 | 0.91 | | 11 | 2.231 | 0.00 | 0.64 | | 0.00 | 0.91 | | 0.00 | 0.91 | | 12 | 2.459 | 0.00 | 0.64 | | 0.00 | 0.91 | | 0.00 | 0.91 | | 13 | 2.588 | 0.00 | 0.64 | | 0.09 | 1.00 | | 0.00 | 0.91 | | 14 | 2.749 | 0.30 | 0.94 | | 0.00 | 1.00 | | 0.00 | 0.91 | | 15 | 3.127 | 0.00 | 0.94 | | 0.00 | 1.00 | | 0.09 | 1.00 |
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