摘要
高耸雁型输电塔初步设计过程,为得到该塔的风振系数,需要估算塔体的自振周期。荷载规范给出的简化自振周期公式取值范围大,精确度不高。二维简化分析是一种计算塔体自振周期的有效方法,与规范公式比较,该方法考虑了在自振周期计算中起关键作用的两个因素:质量和刚度,因此具有更高的精度。
It is need to estimate the tower＇s vibration period to get the tower wind vibration coefficient in the preliminary design process of high-rise transmission tower.Simplified vibration period formula gives an inaccurate result of a wide range.Two-dimensional simplified analysis is an effective way to analysis the vibration period.Comparison of the standardized formula,this method considered two important factors which are the mass and the stiffness.Therefore,it has a higher accuracy.
出处
《工程建设与设计》
2011年第11期60-62,共3页
Construction & Design for Engineering
关键词
高耸雁型输电塔
自振周期
二维简化分析
high-rise transmission tower
vibration period
two-dimensional simplified analysis
