粘性土地区自锚式悬索桥猫道架设动力特性研究  

RESEARCH ON DYNAMIC CHARACTERISTICS OF SELF-ANCHORED SUSPENSION BRIDGE CATWAY INSTALLATION IN COHESIVE SOIL REGION

作　　者：肖羚 XIAO Ling(Yunnan Jiaotou Group Investment Co.,Ltd.,671000,Kunming,China)

机构地区：[1]云南交投集团投资有限公司,昆明650000

出　　处：《建筑技术》2023年第7期866-869,共4页Architecture Technology

摘　　要：基于粘性土地区的环境特征和区域特征,采用ANSYS程序提取出自锚式悬索桥猫道架设的风攻角、姿态角和风偏角对应的三分力系数,对自锚式悬索桥猫道架设进行静风响应分析,利用抗风缆系统结构示意图,分析了抗风缆系统在自锚式悬索桥猫道架设中的作用,根据抗风吊杆的不同形式,在自锚式悬索桥猫道架设中,分析吊杆形式以及动力影响因素,设置抗风门架和斜索的空间位置,在猫道架设中布置抗风门架以及斜索,分析起动力特性影响因素,结合横向天桥设置的影响分析,实现了自锚式悬索桥猫道架设动力特性研究,保证了自锚式悬索桥猫道架设施工人员的安全。Based on the environmental and geological characteristics of cohesive soil region,this paper used ANSYS program to get the aerostatic coefficients of wind attack angle,attitude angle and wind declination angle of self-anchored suspension bridge catway installation,to carry out static wind response analysis for self-anchored suspension bridge catway installation.Wind resistant cable system sketch map was drawn to analyze the function of wind resistant cable system in self-anchored suspension bridge catway installation.According to different types of wind resistant suspension rods in self-anchored suspension bridge catway installation,it analyzed the suspension rod type and dynamic influencing factors,set the space position of wind resistant gantry and oblique staying cable,arranged wind resistant gantry and oblique staying cable for catway installation,analyzed factors influencing dynamic characteristics.Analysis of the influence caused by transverse overhead bridge installation realized research on the dynamic characteristics of self-anchored suspension bridge catway installation and guaranteed the construction safety.

关 键 词：粘性土地区 动力特性 猫道架设 自锚式悬索桥 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]