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[1]周期石,周绪红,刘永健,等.交错桁架结构二阶效应简化分析方法[J].建筑科学与工程学报,2011,28(04):35-38.
 ZHOU Qi-shi,ZHOU Xu-hong,LIU Yong-jian,et al.Simplified Analysis Method of Second-order Effect on Staggered Truss Structure[J].Journal of Architecture and Civil Engineering,2011,28(04):35-38.
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交错桁架结构二阶效应简化分析方法(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
28卷
期数:
2011年04期
页码:
35-38
栏目:
出版日期:
2011-12-20

文章信息/Info

Title:
Simplified Analysis Method of Second-order Effect on Staggered Truss Structure
作者:
周期石1,周绪红2,刘永健3,杨黎明1
1. 中南大学 土木工程学院,湖南 长沙 410075; 2. 兰州大学 土木工程与力学学院,甘肃 兰州 730000; 3. 长安大学 公路学院,陕西 西安 710064
Author(s):
ZHOU Qi-shi1, ZHOU Xu-hong2, LIU Yong-jian3, YANG Li-ming1
1. School of Civil Engineering, Central South University, Changsha 410075, Hunan, China; 2. School of Civil Engineering and Mechanics, Lanzhou University, Lanzhou 730000, Gansu, China; 3. School of Highway, Chang'an University, Xi'an 710064, Shaanxi, Ch
关键词:
交错桁架结构 压弯组合杆件 二阶效应 楼层侧移
Keywords:
staggered truss structure pressure-bend combinational strut second-order effect lateral displacement of story
分类号:
TU311.4
DOI:
-
文献标志码:
A
摘要:
基于交错桁架结构质量和刚度分布均匀的结构特点,将交错桁架结构等效为一根压弯组合杆,通过对压弯组合杆曲率与弯矩及剪力的关系分析,建立了压弯组合杆的平衡微分方程,并基于龙格-库塔法推导出了考虑二阶效应影响的侧移迭代计算公式; 采用该方法对交错桁架结构算例在考虑二阶效应和不考虑二阶效应2种情况下的楼层侧移进行了分析,并与有限元软件ANSYS的计算结果进行了对比。结果表明:提出的二阶效应计算方法具有较好的精度。
Abstract:
Based on the structural characteristics that the distribution of mass and stiffness was symmetrical in staggered truss structure, the load-carrying performance of staggered truss structure was equivalent to a pressure-bend combinational strut. Through the relationship analysis of curvatures and bending moments and shear forces of the pressure-bend combinational strut, balance differential equation of the pressure-bend combinational strut was erected. Based on Runge-Kutta method, the iteration calculation formula of lateral displacement of story was derived considering the influence of second-order effects. Authors analyzed the lateral displacements of story of staggered truss structure examples in the conditions of considering second-order effects or not, and gave a comparative analysis with finite element software ANSYS. Results show that the calculation method of second-order effect proposed in the paper has a good precision.

参考文献/References:

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相似文献/References:

[1]周期石,周绪红,刘永健.交错桁架结构动力特性的简化分析方法[J].建筑科学与工程学报,2006,23(04):28.
 ZHOU Qi-shi,ZHOU Xu-hong,LIU Yong-jian.Simplified Analysis Methods of Dynamic Characteristic of Staggered Truss Structure[J].Journal of Architecture and Civil Engineering,2006,23(04):28.

备注/Memo

备注/Memo:
收稿日期:2011-11-10
基金项目:国家自然科学基金项目(50878215)
作者简介:周期石(1972-),男,湖南嘉禾人,副教授,工学博士,E-mail:qishizhou@csu.edu.cn。
更新日期/Last Update: 2011-12-20