云南电力技术
雲南電力技術
운남전력기술
YUNNAN ELECTRIC POWER
2015年
2期
15-18
,共4页
大跨越%铁塔%自振周期%风振系数计算
大跨越%鐵塔%自振週期%風振繫數計算
대과월%철탑%자진주기%풍진계수계산
long-span crossing%tower%structural natural vibration period%the calculation of wind vibration factor
以实际工程为例,讨论了大跨越铁塔设计中的计算方法。为做好大跨越铁塔的设计,此工程建立了杆—梁混合单元模型并对其进行动力分析,计算出大跨越直线塔的自振周期和振型,在此基础上,采用随机振动理论计算铁塔的风振系数,进行铁塔设计,确保了铁塔的安全,为大跨越铁塔的设计提出了合理的计算方法。
以實際工程為例,討論瞭大跨越鐵塔設計中的計算方法。為做好大跨越鐵塔的設計,此工程建立瞭桿—樑混閤單元模型併對其進行動力分析,計算齣大跨越直線塔的自振週期和振型,在此基礎上,採用隨機振動理論計算鐵塔的風振繫數,進行鐵塔設計,確保瞭鐵塔的安全,為大跨越鐵塔的設計提齣瞭閤理的計算方法。
이실제공정위례,토론료대과월철탑설계중적계산방법。위주호대과월철탑적설계,차공정건립료간—량혼합단원모형병대기진행동력분석,계산출대과월직선탑적자진주기화진형,재차기출상,채용수궤진동이론계산철탑적풍진계수,진행철탑설계,학보료철탑적안전,위대과월철탑적설계제출료합리적계산방법。
The paper discusses the methods of calculation of crossing towers on the basis of a real project.In order to design the long-span crossing tower, the structural natural vibration period and vibration mode is calculated on the basis of a rod-beam mixed cell model, which is specially made for the project, and its dynamic analysis.After that, random vibration theory is adopted to calculate the wind vibration factor in order to guarantee the safety of the tower when the tower is designed.The paper presents a reasonable method of calculation for the design of long-span crossing tower.