拉索索力测试技术与抗弯刚度研究进展  

Research progress of cable force test technology and cable flexural rigidity

作　　者：郭明渊 陈志华[1,2] 刘红波[1,2] 武晓凤[1] 李砚波[1] 

机构地区：[1]天津大学建筑工程学院,天津300072 [2]滨海土木工程结构与安全教育部重点试验室,天津300072

出　　处：《空间结构》2016年第3期34-43,共10页Spatial Structures

基　　金：国家自然科学基金项目(51478310);天津市城乡建设委员会科技项目(2014-1)

摘　　要：近年来,预应力钢结构在国内外发展迅猛,拉索作为预应力钢结构中的关键构件,其特性对预应力钢结构的成形、受力及整体稳定起着决定性的作用.在分析提出背景和研究必要性的基础上,简述了国内外现有的测量拉索索力的主要方法,并对各种测试方法的特点进行了分析总结,频率法为最常用的索力测试方法;对频率法测索力的原理以及抗弯刚度和边界条件对其影响的研究现状进行了阐述;介绍了拉索抗弯刚度的研究现状,提出了针对拉索抗弯刚度这一频率法中关键因素的研究内容,为进一步研究拉索抗弯刚度以及频率法索力测试技术创造了一定的条件.Pre-stressed steel structure is developing rapidly home and abroad in recent years.As cable is a key component of pre-stressed steel structure,its characteristic plays a decisive role in the forming and bearing capacity of the steel structure as well as the overall stability.Based on analysis of the background and necessity to the study,major domestic and foreign existing methods of measuring cable force are reviewed.Characteristics of various methods were also analyzed,and it is shown that the vibrationfrequency method with its advantages,is the most common choice for the cable tension force testing of existing pre-stressed space structure.Principles of the vibration-frequency method and the state of the art of the bending stiffness and boundary condition in vibration-frequency method are described.The research status of cable bending stiffness is also introduced in this paper.Key research issues around the bending stiffness which is the key factor of the vibration-frequency method are presented.It will be an important reference for further research of cable bending stiffness and vibration-frequency method.

关 键 词：预应力钢结构 索力测试 抗弯刚度 边界条件 

分 类 号：TU394[建筑科学—结构工程]