• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Current and Future Trends in Bridge Design, Construction and Maintenance 2: Safety, Economy, Sustainability and Aesthetics, Apr 25-26, 2001, Hong Kong >Review of Design Thermal Loading for Steel Bridges in Hong Kong
【24h】

Review of Design Thermal Loading for Steel Bridges in Hong Kong

机译：香港钢桥设计热荷载的回顾

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The relationship between temperature distribution in steel bridges and climatic conditions in Hong Kong has been investigated in the present study. The temperature measurements at Tsing Ma Bridge have provided very useful data for understanding the thermal behaviour of steel bridges. Three steel segmental models with instrumentation have also been set up since 1993 on the roof of Runme Shaw Building on the campus of the University. On the basis of the measured data, finite element models for different structural components of the bridge deck have been developed to predict the temperature variation. Good agreement with field data was observed. Comparison of temperature gradients among different structures has shown that they can generally be classified into two categories depending on the number of web faces exposed to convection. Values of design thermal loading for a 50-year return period are determined from the statistics of extremes over 40 years of meteorological information in Hong Kong. The design temperature profiles for various types of steel bridge deck with different thickness of bituminous surfacing are proposed. The factors affecting the design effective temperature are also reviewed and suitable values for Hong Kong are proposed. Results are compared with recommendations of the local code.
机译：本研究研究了香港钢桥温度分布与气候条件之间的关系。青马大桥的温度测量为理解钢桥的热行为提供了非常有用的数据。自1993年以来，还在大学校园的Runme Shaw大楼的屋顶上建立了三种带仪器的钢制分段模型。根据测得的数据，已开发了桥面板不同结构部件的有限元模型来预测温度变化。观察到与现场数据吻合良好。不同结构之间温度梯度的比较表明，根据暴露在对流中的腹板面的数量，通常可以将其分为两类。根据香港40多年来气象资料的极端统计，可以确定50年回归期的设计热负荷值。提出了各种类型沥青桥面厚度不同的钢桥面板的设计温度曲线。还回顾了影响设计有效温度的因素，并提出了适合香港的数值。将结果与本地法规的建议进行比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号