| 防风网结构风振疲劳特性研究 |
| |
| 引用本文： | 孙熙平,王元战.防风网结构风振疲劳特性研究[J].港工技术,2009,46(2):30-33. |
| |
| 作者姓名： | 孙熙平 王元战 |
| |
| 作者单位： | 1. 交通部天津水运工程科学研究所水工构造物检测、诊断与加固技术交通行业重点实验室,天津,300456
2. 天津大学建筑工程学院,天津,300072 |
| |
| 摘 要： | 针对某港实际工程．采用有限元方法对防风网结构在脉动风荷载作用下的动力响应进行分析，并根据瞬态动力分析的结果，找出防风网结构应力疲劳最危险的单元。结合疲劳分析的基本理论，应用雨流法统计最危险单元的应力时程，得到应力循环次数及应力幅大小，根据Miner线性累积损伤准则编写ANSYS的风振疲劳程序．计算得到防风网结构的疲劳寿命。根据实际工程，验证设计风速为26．8m／s持续作用下防风网结构的疲劳寿命。
|
| 关 键 词： | 防风网结构 动力响应 风振疲劳 |
Research on Wind-induced Fatigue Characteristic of Windbreak Structure |
| |
| Sun Xiping,Wang Yuanzhan.Research on Wind-induced Fatigue Characteristic of Windbreak Structure[J].Port Engineering Technology,2009,46(2):30-33. |
| |
| Authors: | Sun Xiping Wang Yuanzhan |
| |
| Institution: | 1.Tianjin Research Institute of Water Transport Engineering Key Laboratory of Harbor & Marine Structure Safety Ministry of Communications;Tianjin 300456;China;2.College of Civil Engineering;Tianjin University;Tianjin 300072;China |
| |
| Abstract: | The dynamic responses of windbreak are calculated for a practical windbreak project,and the most dangerous place of the structural stress was identified by the results of the transient dynamic analysis.According to the basic theory of fatigue,we got the stress amplitude and the number of circulation by analyzing the process of the most dangerous element stress with the rain flow method and calculated the fatigue life of the windbreak based on the linear cumulative damage Miner theory by compiling the proced... |
| |
| Keywords: | windbreak structure dynamic response wind-induced fatigue |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
