悬索跨越管道的顺风向风振响应分析  

Analysis of long-wind vibration responses of suspension cable crossing pipeline

作　　者：滕振超[1] 谢丹 赵佳[1] 

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]福州市建筑设计院,福建福州350001

出　　处：《地震工程与工程振动》2015年第3期242-246,共5页Earthquake Engineering and Engineering Dynamics

基　　金：中石油天然气股份有限公司科技风险创新研究项目(07-064-04-03)

摘　　要：根据渭惠渠跨越段工程中某悬索跨越管道的工程实例,利用MATLAB软件编制了悬索跨越管道的空间相关性风场的模拟程序,模拟风速的功率谱密度函数与目标功率谱均吻合较好,说明本文方法具有较高的精度。将风速转换为风荷载,并施加在悬索跨越管道的有限元模型上,进行风振响应分析,获得结构的位移和加速度时程曲线及构件的应力分布情况,结果表明该悬索跨越管道结构在风荷载作用下是安全的,为同类结构的抗风设计提供参考。Taking the spanning pipeline of Wei-Hui engineering project as an example, the spatial correlation of wind field simulation program is compiled by using MATLAB. As a result, the power spectral density function for simulation of the wind speed is in good agreement with the target power spectrum. It means that this method has relatively high accuracy. Converting the wind speed into wind load and imposing it on the finite element model of suspension cable crossing pipeline, the vibration response analysis is made. The structure displacement, acceleration time history curve and the stress distribution of the components are obtained. The results show that the suspension cable crossing pipeline structures under wind load are safe. And this analysis also provides a reference for the other wind resistant design of similar structure.

关 键 词：悬索跨越管道 风场模拟 风振响应 有限元 

分 类 号：TU312[建筑科学—结构工程] TU317.1