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润扬悬索桥桥址区实测强风特性的对比研究 被引量:12
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作者 谢以顺 李爱群 王浩 《空气动力学学报》 EI CSCD 北大核心 2009年第1期47-51,共5页
2005年8月与9月期间,台风"麦莎"和"卡努"分别袭击江苏,润扬悬索桥健康检测系统(WASHMS)记录了经过桥址区的两个强风样本。通过对实测风速风向数据的分析,得到了平均风速和风向、湍流强度、湍流积分尺度、湍流功率... 2005年8月与9月期间,台风"麦莎"和"卡努"分别袭击江苏,润扬悬索桥健康检测系统(WASHMS)记录了经过桥址区的两个强风样本。通过对实测风速风向数据的分析,得到了平均风速和风向、湍流强度、湍流积分尺度、湍流功率谱密度函数等强风特性。分析结果表明,桥址区实测"卡努"台风的湍流强度比"麦莎"台风的要高,且二者均高于规范建议值;二者水平湍流功率谱密度函数与Kaimal谱均吻合得不太理想,低频段偏低,高频段偏高。最后对实测的脉动风谱离散数据进行了非线性最小二乘法拟合,得到拟合自谱曲线及相应的拟合参数,为该桥的抗风研究提供参考。 展开更多
关键词 悬索桥 结构健康监测系统 台风 实测强风特性 拟合谱
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Major bridge development in Hong Kong,China—past,present and future 被引量:1
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作者 Michael CH HUI Doris YAU 《Frontiers of Structural and Civil Engineering》 SCIE EI 2011年第4期405-414,共10页
The first"modern"type of vehicular bridge was built in Hong Kong China in the 1920s.The need for an efficient transportation system to cope with population growth and enable economic development has demanded... The first"modern"type of vehicular bridge was built in Hong Kong China in the 1920s.The need for an efficient transportation system to cope with population growth and enable economic development has demanded the construction of more and more bridges since the middle of the 20th century.By 2007,Hong Kong had a total of about 1300 vehicular bridges.Four of these bridges,including the Tsing Ma Bridge,Kap Shui Mun Bridge,Ting Kau Bridge,and the cable-stayed bridge on the Hong Kong-Shenzhen Western Corridor,are considered to be major bridges supported by cables.Currently,the Stonecutters Bridge on Route No.8 is under construction and is expected to be completed in late 2009.At the same time,the Hong Kong-Zhuhai-Macao Bridge will be in its detailed design stage soon.While efforts have been made by bridge builders to construct these giant structures,the upkeeping of these valuable assets at a high standard and ensuring their continuous functioning and performance during their intended lifespans will be another important task for bridge engineers.Wind and structural health monitoring system(WASHMS)will play a key role in this respect. 展开更多
关键词 Tsing Ma Bridge Kap Shui Mun Bridge Ting Kau Bridge Stonecutters Bridge Hong Kong-ZhuhaiMacao Bridge wind and structural health monitoring system(washms)
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