摘要
本文给出了斜拉桥钢绞线斜拉索粘性剪切型阻尼器的设计和安装方法。在描述了斜拉索常见的风致振动及其危害后,介绍了目前所采用的斜拉索减振措施。根据国内粘性剪切型阻尼器研究现状,针对钢绞线斜拉索,采用AN SY S有限元程序进行设计计算;分析了影响粘性剪切型阻尼器减振效果的因素。通过在安庆长江大桥上进行实桥试验,验证了本粘性剪切型阻尼器设计计算方法的可行性和减振效果。
In this paper, the method of design and installation of viscous shearing damper for the strand cables of cable-stayed bridge is presented. Firstly, the common phenomenon and characteristics of the wind-induced vibration are described. Then, the types of damp and the measures which can diminish the vibration are introduced. According to the research status of viscous shearing damper, the finite element program-ANSYS is adopted to analyze the strand stay cables, and the influence factors of vibration-reduce effect which viscous shearing damper can achieve are analyzed. Experiments are carried out on Anqing Yangtze River Bridge to testify the correctness of the design method and the effect of viscous shearing damper.
出处
《公路》
北大核心
2007年第10期58-62,共5页
Highway
关键词
斜拉桥
粘性剪切型阻尼器
钢绞线斜拉索
减振效果
cable-stayed bridge
viscous shearing damper
strand stay cable
effect of vibration-induce
