弦支组合网架结构静力与自振特性分析

英文篇名：Static and Vibration Characteristics Analysis on Combined Grid String Branch Structure
中文刊名：北华航天工业学院学报
英文刊名：Journal of North China Institute of Aerospace Engineering
作者：莫宗云
英文作者：MO Zong-yuan(Construction Engineering Department ; North China Institute of Aerospace Engineering ; Langfang 065000 ; China)
中文关键词：弦支网架 ; 预应力 ; 静力特性 ; 自振特性
英文关键词：grid string branch ; prestressing ; static characteristics ; dynamic characteristics
出版日期：2011-04-28
机构：北华航天工业学院建筑工程系;
年：2011
期：02
出版单位：北华航天工业学院学报

摘要

根据张弦梁结构的思想提出由组合网架和索通过支杆相连而形成的预应力结构即弦支组合网架结构。建立一弦支组合网架结构的计算模型,利用ANSYS有限元软件分析结构在不同预应力作用下的静力和自振特性。得知预应力能够较为明显的改善结构位移和杆件内力,即索内初始预应力越大,结构位移和杆件内力越小;改变预应力对结构的自振特性几乎没有影响。
According to the thought of beam string structure,prestressing structure was presented that it was joined by combined grid and cable supported by pole.It was combined grid string branch structure.A calculation model of string branch grid was founded.Static and dynamic characteristics of the structure acted by different prestress value were analyzed.Through the analysis,the structure displacement and internal forces of rod improved obviously depending on prestress value.The larger prestress value was,the lower structure displacement and internal forces of rod.While prestress value is changing,natural vibration characteristics of the structure remain steady.

引文

[1]陆赐麟,尹思明,刘锡良.现代预应力钢结构[M].北京:人民交通出版社,2007.
    [2]韩庆华,裴波.预应力组合网架结构的理论分析与应用研究[J].建筑结构学报,2004,25(1):87-92.
    [3]韩庆华,裴波.预应力组合网架结构的自振特性分析及现场测试[J].地震工程与工程振动,2004,24(2):118-124.
    [4]舒赣平.预应力组合网架在南京新世界中心工程中的应用[J].建筑技术,2000,31(12):826-828.
    [5]陈志华.弦支结构体系概念与分类[J].工业建筑,2010,40(8):1-5.
    [6]陈志华.弦支网架结构体系概念及特性研究[J].工业建筑,2010,40(8):6-9.
    [7]刘洪波.一种新型预应力空间结构形式-弦支拱壳结构[J].工业建筑,2010,40(8):10-12.