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    賈永新¹，  張  勇²
    （1 北京市建設(shè)工程質(zhì)量第一檢測(cè)所，北京100039；2 北京交通大學(xué)，北京100044）

[摘要] 首先利用MATLAB編程工具采用線(xiàn)性濾波法，模擬了不同矢跨比的開(kāi)敞式拱形波紋鋼屋蓋結(jié)構(gòu)的風(fēng)速時(shí)程曲線(xiàn)，然后利用ANSYS有限元分析軟件中的瞬態(tài)動(dòng)力學(xué)模塊對(duì)這種結(jié)構(gòu)進(jìn)行動(dòng)力時(shí)程分析，討論其在脈動(dòng)風(fēng)荷載作用下的動(dòng)力響應(yīng)，并將時(shí)域分析與之前頻域分析的結(jié)果進(jìn)行對(duì)比，最后總結(jié)此類(lèi)屋蓋結(jié)構(gòu)的風(fēng)振規(guī)律并給出計(jì)算風(fēng)振系數(shù)的公式，以供設(shè)計(jì)施工人員參考使用。
[關(guān)鍵詞] 開(kāi)敞式；拱形波紋鋼屋蓋；風(fēng)致振動(dòng)響應(yīng)；時(shí)域分析
中圖分類(lèi)號(hào)：TU470    文獻(xiàn)標(biāo)識(shí)碼：A  文章編號(hào)：1002-848X(2011) S2-0071-04

    Analysis on wind-induced dynamic response of open-type arched corrugated steel roof
    Jia Yongxin¹, Zhang Yong²
    (1Beijing Building Construction Research Institute No.1 Testing Institute,  BCQTC,  Beijing 100039,  China; 2 Beijing Jiaotong University, Beijing 100044, China)

Abstract: Based on linear filtering, time history curves of fluctuating wind velocities of different rise-to span ratio open-type arched corrugated steel roof were simulated in MATLAB, and the rIRANS method in ANSYS was used to calculate the dynamic responses in time domain. The results were compared with those in frequency domain in order to verify the validity of the two methods. Vibration coefficient formula of such structure was given for the designer and constructer reference.
Keywords: open-type; arched corrugated steel roof( acsr); wind-induced dynamic response; time domain analysis