良态风及台风不同风谱对结构风雨振反应对比分析

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Abstract Normal wind and typhoon spectra are used to simulate time history curves of wind and rain loads for comparing the influence of normal wind and typhoon on response analysis of structures induced by wind and rain loads. Harmony superposition method is used to generate fluctuating wind speed and time history curves of wind and rain loads with the spectra of normal wind and typhoon. Response analysis is performed with the consideration of wind and rain loads effect on the transmission tower, and then root mean squares of accelerations of tower tip are obtained with different conditions. The calculation results show that the root mean squares of accelerations for typhoon spectra are bigger than the results of normal wind spectrum and the increasing percentages of root mean squares of accelerations for typhoon spectra is smaller than the percentages of normal wind. The maximal increasing percentages can be 24.43%, so it’s necessary to pay attention to the high turbulence intensity and the impact between structures and raindrops during typhoon.

Key words： typhoon normal wind rain load wind spectrum transmission tower

Received: 24 April 2014 Published: 15 June 2015

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	FU Xing
	LI Hongnan

Cite this article:

FU Xing,LI Hongnan. The comparison analysis of employing normal wind and typhoon spectra on the response of structures induced by wind and rain loads[J]. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(11): 7-10.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2015/V34/I11/7

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