多點(diǎn)多維輸入下青島北站主站房屋蓋扭轉(zhuǎn)效應(yīng)分析
張相勇
- 摘 要
-
(北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045)［摘要］青島北站主站房屋蓋結(jié)構(gòu)平面尺寸非常大，受力情況十分復(fù)雜，進(jìn)行多點(diǎn)多維分析十分必要。首先介紹了多點(diǎn)多維輸入地震反應(yīng)分析的基本原理，采用時(shí)程分析法對(duì)青島北站結(jié)構(gòu)進(jìn)行多點(diǎn)多維輸入下的地震響應(yīng)分析，并與一致輸入下的結(jié)構(gòu)響應(yīng)進(jìn)行了對(duì)比，考察了兩種輸入方法下結(jié)構(gòu)扭轉(zhuǎn)效應(yīng)和內(nèi)力變化的特點(diǎn)，并進(jìn)行了對(duì)比分析。最后得到結(jié)論：多點(diǎn)多維輸入下結(jié)構(gòu)的扭轉(zhuǎn)效應(yīng)較一致輸入下有明顯的增大趨勢(shì)，該趨勢(shì)對(duì)結(jié)構(gòu)的安全性產(chǎn)生一定的影響，但是相對(duì)扭轉(zhuǎn)角沒有增大多少；不同角度的輸入條件下，結(jié)構(gòu)的扭轉(zhuǎn)效應(yīng)也不一樣，對(duì)于青島北站主站房屋蓋來說，45°方向輸入時(shí)響應(yīng)最大，0°方向輸入時(shí)響應(yīng)最??；拱構(gòu)件在多點(diǎn)激勵(lì)和一致激勵(lì)作用下的響應(yīng)各不相同，有的響應(yīng)增大，有的響應(yīng)減小。［關(guān)鍵詞］多點(diǎn)多維輸入; 一致輸入; 立體拱架; 地震響應(yīng); 時(shí)程分析法中圖分類號(hào)：TU311.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)23-0014-03Torsional effect analysis of main station roof of Qingdao North Railway Station under multi-support and multi-dimension dynamic inputZhang Xiangyong（Beijing Institute of Architectural Design, Beijing 100045, China）Abstract: The main station roof of the Qingdao North Railway Station has large planar size and complicated stress distribution, which make it necessary to conduct multi-support and multidimension dynamic response analysis. The basic principle of multi-support and multi-dimension dynamic response analysis was introduced firstly. Then seismic response analysis of the main station roof of the Qingdao North Railway Station was carried out using time-history analysis method under multi-support and multi-dimension input, and results were compared with those of structure response under the uniform input. After that, the characteristics of torsional effect and internal force changes under two different input methods were compared. Results show that in the condition of multi-support and multi-dimension input, the torsional effect increase significantly compared with the uniform input, which make a certain influence to the safety of the structure but the relative torsion angle increase little. In the condition of different input angle, the torsional effect of the main station roof is different that the response is the largest under 45°input angle and smallest under 0°input angle. The arch structure responses differently under multi-support excitation and uniform excitation, and the responses of some arch structures increase and the responses of some arch structures decrease.Keywords: multi-support and multi-dimension input; uniform input; three-dimensional arch; seismic response; time-history analysis method作者簡(jiǎn)介：張相勇，博士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，注冊(cè)咨詢工程師（投資），Email：yongzx@126.com。參考文獻(xiàn)［1］張相勇,李黎明,魏建友，等. 青島北站結(jié)構(gòu)設(shè)計(jì)綜述［J］.建筑結(jié)構(gòu),2013，43（23）：1-6,13.［2］李國(guó)強(qiáng),沈祖炎. 上海浦東國(guó)際機(jī)場(chǎng)R2鋼屋蓋模型模擬三向地震振動(dòng)臺(tái)試驗(yàn)研究［J］.建筑結(jié)構(gòu)學(xué)報(bào),1999, 20(2):18-27.［3］白學(xué)麗,葉繼紅.大跨空間網(wǎng)格結(jié)構(gòu)在多點(diǎn)多維輸入下的簡(jiǎn)化計(jì)算方法［J］.空間結(jié)構(gòu),2008，14（2）:30-33.［4］陳海忠,朱宏平,蔡振，等.多點(diǎn)多維地震作用下某體育館的動(dòng)力響應(yīng)分析［J］.華中科技大學(xué)學(xué)報(bào)：城市科學(xué)版，2009,26(2):12-14.［5］張相勇. 建筑鋼結(jié)構(gòu)設(shè)計(jì)方法與實(shí)例解析［M］. 北京:中國(guó)建筑工業(yè)出版社, 2013.［6］張相勇,李黎明,甘明. 青島北站主站房屋蓋鋼結(jié)構(gòu)設(shè)計(jì)［J］.建筑結(jié)構(gòu),2013，43（23）：7-13.
- 下載地址
-
你還沒注冊(cè)？或者沒有登錄？這篇論文要求至少是本站的注冊(cè)會(huì)員才能閱讀！
如果你還沒注冊(cè)，請(qǐng)趕緊點(diǎn)此注冊(cè)吧！
如果你已經(jīng)注冊(cè)但還沒登錄，請(qǐng)趕緊點(diǎn)此登錄吧！
