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基于性能的通航桥梁抗船撞评估方法及应用研究 被引量:2
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作者 王永祥 贾小龙 孙红兰 《世界桥梁》 北大核心 2024年第1期95-102,共8页
为合理有效地开展通航桥梁抗船撞性能评估,提出基于性能的桥梁抗船撞标准化评估方法。基于现行《公路桥梁抗撞设计规范》(JTG/T 3360-02-2020),从抗撞性能等级确定、设防代表船型确定、船撞力计算、船撞效应计算以及抗撞性能验算等方面... 为合理有效地开展通航桥梁抗船撞性能评估,提出基于性能的桥梁抗船撞标准化评估方法。基于现行《公路桥梁抗撞设计规范》(JTG/T 3360-02-2020),从抗撞性能等级确定、设防代表船型确定、船撞力计算、船撞效应计算以及抗撞性能验算等方面,采用结构性能目标作为评估准则,建立桥梁抗撞性能评估各环节流程的标准化评估方法。以江苏扬中三桥为应用实例,运用该方法进行该桥20号墩抗撞性能评估,结果表明:20号墩桩基顺桥向抗弯性能不满足JX1级要求,其余验算结果满足要求,桥墩抗撞性能综合评估结果为不满足要求。参照评估结果该桥加装了浮动式防撞设施。桥梁抗撞性能评估标准化,可准确高效实现桥梁抗撞性能等级确定、船撞效应计算、抗撞性能验算等预期的评估功能要求。 展开更多
关键词 桥梁工程 船撞桥 现行规范 结构性能目标 抗撞性能 标准化评估方法 工程应用
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The risk assessment of disasters induced by typhoons in Shandong province based on historical data during 1985-2010
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作者 YUE Xinyang SHI Xiaoxiao GENG Shanshan 《Marine Science Bulletin》 2022年第1期34-46,共13页
In the present paper,the risk assessment of disasters induced by typhoons in Shandong Province has been carried out based on the basis of the analyses of the historical data during 1985-2010.In order to reduce the imp... In the present paper,the risk assessment of disasters induced by typhoons in Shandong Province has been carried out based on the basis of the analyses of the historical data during 1985-2010.In order to reduce the impact of the social and economic development status on the evaluation results in various periods,the normalized evaluation method was used to analyze the annual typhoon-induced damage in the concerned period.The quantitative comprehensive index is proposed with fuzzy mathematics,and the effect of typhoon-induced disasters is systematically investigated with the proposed index.In the analyses of the various hazard factors,the damage induced by the typhoon is combined with human and social factors,and further is comprehensively analyzed based on a GIS platform.The assessment results indicate that the normalized damage induced by typhoons presents the downward trend year by year and regional differences with significant temporal-spatial characteristics.The results of the present study are expected to be beneficial to disaster prevention and mitigation in Shandong Province. 展开更多
关键词 typhoon-induced disaster assessment normalized evaluation method comprehensive evaluation index geography information system(GIS)
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