The Simplified Analytical Method for Computing Dynamic Characteristics of Transmission Steel Towers
Based on vibration theory, simplified analytical methods for computing the first natural vibration frequency and mode of transmission steel tower are investigated, which has improved the currently applied method. The method for frequency includes parameters of lumped mass such as tower head or cross arm, and can show the influence of section of tower main leg. The method for mode considers tower height, root space and head width. Examples of some typical transmission steel towers show that the dynamic characteristics computed with the simplified analytical methods are close to those of the Finite Element Method. Then the methods given in this paper are superior to the present methods used in engineering and have a better generality, which are suitable to different tower type structures.
Transmission steel tower Natural vibration frequency Natural vibration mode Simplified analytical method
Jingbo Yang Jinfei Zhao Jun Jiang
China Electric Power Research Institute, Beijing 100055, China Fujian Electric Power Survey & Design Institute, Fuzhou 350003, China School of Aerospace, Xian Jiaotong University, Xian 710049, China
国际会议
上海
英文
303-306
2011-10-21（万方平台首次上网日期，不代表论文的发表时间）