| 基于现场实测的润扬悬索桥桥址区台风与强北风特性对比(英文) |
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| 引用本文： | 王浩,李爱群,郭彤,谢静,胡若玫.基于现场实测的润扬悬索桥桥址区台风与强北风特性对比(英文)[J].东南大学学报,2009,25(1). |
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| 作者姓名： | 王浩 李爱群 郭彤 谢静 胡若玫 |
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| 作者单位： | 东南大学混凝土及预应力混凝土结构教育部重点实验室,南京,210096
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| 基金项目： | 国家高技术研究发展计划(863计划)，国家自然科学基金重点项目，国家杰出青年科学基金 |
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| 摘 要： | 综合利用润扬结构健康监测系统(SHMS)风环境子系统实时记录的各种参数时程数据以及强风期间上桥实测强风样本,分析得到了桥址区实测强风的风速和风向、紊流强度、紊流积分尺度、紊流功率谱密度函数等特性,重点对比研究了台风与强北风特性之间的差异性.结果表明,与台风相比,强北风的平均风速略小、平均风向更加稳定;台风与强北风的实测紊流强度值均比规范建议值大;台风与强北风的紊流积分尺度之间无明显的规律性;就顺风向紊流功率谱而言,强北风与Kaimal谱更加吻合.研究结果为建立桥址区台风特性数据库,确定当地强风特性参数的合理取值提供了实测依据.
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| 关 键 词： | 悬索桥 台风 北风 风特性 现场实测 结构健康监测系统 |
Comparable study on typhoon and strong northern wind characteristics of the Runyang Suspension Bridge based on field tests |
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| Wang Hao Li Aiqun Guo Tong Xie Jing Hu Ruomei.Comparable study on typhoon and strong northern wind characteristics of the Runyang Suspension Bridge based on field tests[J].Journal of Southeast University(English Edition),2009,25(1). |
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| Authors: | Wang Hao Li Aiqun Guo Tong Xie Jing Hu Ruomei |
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| Institution: | Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education;Southeast University;Nanjing 210096;China |
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| Abstract: | The strong wind characteristics of the Runyang Suspension Bridge(RSB)including the wind speed and direction,the turbulence intensity,the turbulence integral length and power spectrum are analyzed based on measurement data from the wind environment monitoring subsystem of the structural health monitoring system(SHMS)of the RSB and field tests during strong winds.The differences between the typhoon and the strong northern wind are especially studied.It is found that the mean wind speed of the strong northern ... |
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| Keywords: | suspension bridge typhoon northern wind wind characteristics field teSt structural health momtoring system |
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