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| 桅杆天线基座整体提升施工风稳定性分析 | |
| 引用本文： | 陈燊,郭建斌,卓文. 桅杆天线基座整体提升施工风稳定性分析[J]. 福州大学学报(自然科学版), 2007, 35(5): 720-724 |
| 作者姓名： | 陈燊 郭建斌 卓文 |
| 作者单位： | 1. 福州大学土木工程学院,福建,福州,350002 2. 林业部设计院厦门分院,福建,厦门,361012 3. 福建省广播电视工程处,福建,福州,350014 |
| 摘 要： | 对桅杆结构风载作用下静力整体稳定进行非线性分析,研究桅杆天线基座整体提升施工的风稳定性.基于桅杆结构的非线性平衡方程,应用ANSYS软件进行结构分析.采用特征值屈曲方法求得桅杆失稳载荷的数值解上限后,以此作为非线性屈曲分析的给定载荷,在渐进加载达到此载荷前,求得非线性失稳临界解,即该基座整体提升时的稳定安全系数,及其后屈曲路径. |
| 关 键 词： | 桅杆天线 整体提升 风稳定性 屈曲 非线性分析 |
| 文章编号： | 1000-2243(2007)05-0720-05 |
| 修稿时间： | 2006-10-27 |
Wind stability analysis for tall antenna mast in integral-lift-base construction |
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| CHEN Shen,GUO Jian-bin,ZHUO Wen. Wind stability analysis for tall antenna mast in integral-lift-base construction[J]. Journal of Fuzhou University(Natural Science Edition), 2007, 35(5): 720-724 | |
| Authors: | CHEN Shen GUO Jian-bin ZHUO Wen |
| Affiliation: | 1.College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350002,China;2.Forestry Designing Institute,Xiamen,Fujian 361012,China;3.Fujian BC-TV Engineering Section,Fuzhou,Fujian 350014, China) |
| Abstract: | Nonlinear analysis of static integral stability of mast structure under wind load is done for a tall antenna mast in integral-lift-base construction.Based on the nonlinear equilibrium equations,the software ANSYS has been used to analyze the structure.First of all to find up-bound of numerical solution about mast buckling load by an eigenvalue method,and then to take the solution as a given load for analysis of nonlinear buckling.When arriving to the load in loading step by step,a critical coefficient of nonlinear buckling,that is to say the safety factor for the integral-lift-base construction,is found.Meanwhile,the post-buckling behavior is known. |
| Keywords: | antenna mast integral-lift wind stability buckling nonlinear analysis |
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