地震波輸入角度對大型脫硫塔結構動力影響的實驗研究

宋波; 盛朝暉; 徐明磊; 王利

doi:10.13374/j.issn1001-053x.2010.12.020

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驗證碼

地震波輸入角度對大型脫硫塔結構動力影響的實驗研究

doi: 10.13374/j.issn1001-053x.2010.12.020

1. 北京科技大學土木與環境學院, 北京 100083;
2. 河北工程大學水電學院, 邯鄲 056021;
3. 北京國電龍源環保工程有限公司, 北京 100083

基金項目:

“十一五”國家科技支撐計劃資助項目（No.2006BAJ13B04）；北京國電龍源環保工程有限公司科技項目（No.13B04）

詳細信息

作者簡介:
宋波(1962-),男,教授,博士,E-mail:songbo@ces.ustb.edu.cn

中圖分類號: TU33⁺3
計量
- 文章訪問數: 123
- HTML全文瀏覽量: 26
- PDF下載量: 3
- 被引次數: 0
出版歷程
- 收稿日期: 2010-02-05

Experimental study on the dynamic effect of a desulfurization tower under different seismic wave input angles

1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Hydropower School, Hebei University of Engineering, Handan 056021, China;
3. Beijing Guodian Longyuan Environmental Engineering Co. Ltd., Beijing 100083, China

摘要

摘要: 對某電廠大型脫硫塔結構模型進行了模擬地震的振動臺實驗研究.以縮尺比例為1∶15的薄壁鋼結構脫硫塔為模型,在多角度輸入正弦波、天津波和日向灘沖地震波的前提下,對塔體加速度峰值反應及最不利激勵波輸入角度進行了研究探討.結果表明:激勵波輸入角度對結構動力反應的影響以與結構成30°角方向為最大,60°角方向最小,結構在地震波作用下,塔體加速度峰值的分布明顯不同于正弦波情況;脫硫塔結構的復雜性會對結構的動力反應產生較大的影響,塔頂重量較大是引起結構加速度峰值沿塔高分布嚴重不均勻的主要因素之一.
- 薄壁結構 /
- 脫硫 /
- 振動臺 /
- 地震波 /
- 動力特性
Abstract: The simulated earthquake experimental study on a large desulfurization tower was carried out using shaking table test. A 1:15 reduced-scale thin-walled steel structure model of the desulfurization tower was designed for testing and the dynamic responses of the model were discussed. The responses of peak acceleration were studied under a sine wave, Tianjin wave and Hyuga seismic wave in various angles and the most unfavorable input angle was analyzed. The results show that the influence of the input angle of an excitation wave can not be ignored, the maximum influence is in the direction of 30° and the minimum is in the direction of 60°. The complexity of the thin-wall desulfurization tower can affect the dynamic characteristics of the structure to a great extent. The weight of the tower top is one of the main factors causing the distribution of peak acceleration uneven in tower height.
- thin-wall structures /
- desulfurization /
- shaking table /
- earthquake wave /
- dynamic characteristics