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首页> 外文会议>Conference on Health Monitoring and Management of Civil Infrastructure Systems Mar 6-8, 2001, Newport Beach, USA >Monitoring of Wind Load and Response for Cable-Supported Bridges in Hong Kong
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Monitoring of Wind Load and Response for Cable-Supported Bridges in Hong Kong

机译：监测香港斜拉桥的风荷载和响应

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摘要

Structural health monitoring for the three cable-supported bridges located in the West of Hong Kong or the Tsing Ma Control Area has been carried out since the opening of these bridges to public traffic. The three cable-supported bridges are referred to as the Tsing Ma (suspension) Bridge, the Kap Shui Mun (cable-stayed) Bridge and the Ting Kau (cable-stayed) Bridge. The structural health monitoring works involved are classified as six monitoring categories, namely, wind load and response, temperature load and response, traffic load and response, geometrical configuration monitoring, strains and stresses/forces monitoring and global dynamic characteristics monitoring As wind loads and responses had been a major concern in the design and construction stages, this paper therefore outlines the work of wind load and response monitoring on Tsing Ma, Kap Shui Mun and Ting Kau Bridges. The paper starts with a brief description of the sensory systems. The description includes the layout and performance requirements of sensory systems for wind load and responses monitoring. Typical results of wind load and response monitoring in graphical forms are then presented. These graphical forms include the plots of wind rose diagrams, wind incidences vs wind speeds, wind turbulence intensities, wind power spectra, gust wind factors, coefficient of terrain roughness, extreme wind analyses, deck deflections/rotations vs wind speeds, acceleration spectra, acceleration/displacement contours, and stress demand ratios. Finally conclusions on wind load and response monitoring on the three cable-supported bridges are drawn.
机译：自从三座桥对公众交通开放以来，已经对位于香港西部或青马管制区的三座电缆桥进行了结构健康监测。这三座缆索桥分别称为青马（悬索）桥，汲水门（斜拉桥）和汀九（斜拉桥）。涉及的结构健康监测工作分为六个监测类别，即风荷载和响应，温度荷载和响应，交通荷载和响应，几何构型监测，应变和应力/力监测以及全局动态特性监测。一直是设计和施工阶段的主要关注点，因此，本文概述了青马大桥，甲水门大桥和汀九大桥的风荷载和响应监测工作。本文首先简要介绍了感觉系统。该说明包括用于风荷载和响应监控的传感系统的布局和性能要求。然后以图形形式显示风荷载和响应监控的典型结果。这些图形形式包括风玫瑰图，风入射与风速，风湍流强度，风能谱，阵风系数，地形粗糙度系数，极端风分析，甲板挠度/旋转对风速，加速度谱，加速度的图/位移轮廓和应力需求比。最后得出关于三座电缆桥的风荷载和响应监测的结论。

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