- 摘 要
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(1 天津大學(xué)建筑工程學(xué)院， 天津 300072；2 天津大學(xué)濱海土木工程結(jié)構(gòu)與安全教育部重點(diǎn)實(shí)驗(yàn)室， 天津 300072)
［摘要］為了研究大跨度空間結(jié)構(gòu)風(fēng)振響應(yīng)特性,基于風(fēng)洞試驗(yàn)所得體型系數(shù)及線性自回歸濾波法生成的風(fēng)荷載時程曲線，利用ANSYS軟件對天津于家堡交通樞紐站房貝殼形單層網(wǎng)殼在時域內(nèi)進(jìn)行三維風(fēng)振響應(yīng)分析，得到結(jié)構(gòu)在典型風(fēng)向角下各點(diǎn)的瞬態(tài)響應(yīng)時程曲線及位移、內(nèi)力風(fēng)振系數(shù)，并對結(jié)構(gòu)風(fēng)振響應(yīng)曲線進(jìn)行傅里葉變換，得到結(jié)構(gòu)相應(yīng)的頻域特征，為結(jié)構(gòu)等效風(fēng)荷載的確定提供有效指導(dǎo)。
［關(guān)鍵詞］線性自回歸濾波法; 風(fēng)振系數(shù); 風(fēng)振響應(yīng); 貝殼形單層網(wǎng)殼
中圖分類號：TU392.1 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2014)19-0012-04
Wind-induced response analysis on lattice shells of Yujiapu transportation junction station
Zhao Zhongwei1, Chen Zhihua1,2, Wang Xiaodun1, Liu Hongbo1, Xu Hao1
(1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Key Laboratory of Coast Civil Structure and Safety of Ministry of Education, Tianjin University, Tianjin 300072, China)
Abstract: Based on the wind pressure coefficient obtained from wind tunnel test and the time history curve of wind load by linear filtering autoregressive method, the ANSYS software was used in three-dimensional wind-induced response analysis of single-layer lattice shells of Yujiapu transportation junction station in time domain to investigate wind-induced response of large-span spatial structures. The transient response time history curves in typical wind directions were obtained as well as displacement and internal force wind vibration coefficient. Frequency domain characteristics of the structure were obtained by fourier transfer on wind-induced response curves. It provides effective guidance for the decision of equivalent wind load.
Keywords: linear filtering autoregressive method; wind vibration coefficient; wind-induced response; shell shaped single-layer lattice shell
*天津市重大研究計劃課題(11ZCZDSF04800)，中國博士后特別資助項(xiàng)目(2013T60253)。
通訊作者: 陳志華，博士，教授，博士生導(dǎo)師，Email: zhchen@tju.edu.cn。
參考文獻(xiàn)
［1］陳志華,徐皓,王小盾,等. 天津于家堡綜合交通樞紐貝殼形超大跨度單層網(wǎng)殼結(jié)構(gòu)設(shè)計關(guān)鍵技術(shù)［J］.建筑結(jié)構(gòu),2014,44(7):33-36.
［2］何偉明， 宋長江， 楊華，等. 天津于家堡交通樞紐大跨度單層網(wǎng)殼設(shè)計與分析［J］.建筑結(jié)構(gòu),2012,42(10):13-17.
［3］ZHOU ZHEN, LI ZHIMING, MENG SHAOPING. Wind-induced vibration responses of prestressed double-layered spherical latticed shells［J］. International Journal of Steel Structures,2011,11(2): 191-202.
［4］魏德敏,邊建烽.球面網(wǎng)殼結(jié)構(gòu)風(fēng)振響應(yīng)時程分析［J］. 華南理工大學(xué)學(xué)報：自然科學(xué)版, 2007,51(11):1-7.
［5］張建勝，武岳，沈世釗. Kiewitt型單層球面網(wǎng)殼結(jié)構(gòu)風(fēng)振響應(yīng)分析［J］. 建筑結(jié)構(gòu), 2006,36(2): 91-94.
［6］袁波,應(yīng)惠清,徐佳煒.基于線性濾波法的脈動風(fēng)速模擬及其MATLAB程序的實(shí)現(xiàn)［J］. 結(jié)構(gòu)工程師, 2007,23(4):55-61.
［7］楊學(xué)林,陳水福,周平槐.大跨雙層屋蓋結(jié)構(gòu)風(fēng)洞試驗(yàn)與風(fēng)振響應(yīng)研究［J］. 建筑結(jié)構(gòu), 2012,42(8): 12-14.
［8］廖海黎,羅楠.天津于家堡地鐵車站站房風(fēng)洞試驗(yàn)研究報告［R］.成都：西南交通大學(xué)風(fēng)工程試驗(yàn)研究中心，2010.
［9］GB 50009—2012 建筑結(jié)構(gòu)荷載規(guī)范［S］. 北京: 中國建筑工業(yè)出版社, 2012.
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