钢绞线斜拉索粘性阻尼器设计方法及应用  

Method of Design and Installation of Viscous Shearing Damper for Strand Stay Cable

作　　者：胡兆同[1] 孙胜海[2] 刘健新[1] 

机构地区：[1]长安大学,西安市710064 [2]中交第一公路勘察设计研究院,西安市710075

出　　处：《公路》2007年第10期58-62,共5页Highway

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.

关 键 词：斜拉桥 粘性剪切型阻尼器 钢绞线斜拉索 减振效果 

分 类 号：U441.3[建筑科学—桥梁与隧道工程]