884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(1 中國(guó)建筑科學(xué)研究院，北京 100013； 2 中國(guó)航空工業(yè)規(guī)劃設(shè)計(jì)研究院，北京 100011)
［摘要］以位于首都機(jī)場(chǎng)的北京AMECO A380機(jī)庫大跨度空間網(wǎng)架屋蓋跨中上弦處節(jié)點(diǎn)球(D800×32)為研究對(duì)象，分析此類焊接空心球節(jié)點(diǎn)在單向壓力條件下的承載力性能。采用有限元非線性分析確定節(jié)點(diǎn)的理論承載力，然后通過節(jié)點(diǎn)模型試驗(yàn)進(jìn)行驗(yàn)證。有限元分析結(jié)果與試驗(yàn)結(jié)果表明：焊接空心球節(jié)點(diǎn)的設(shè)計(jì)承載力較高，完全能夠滿足設(shè)計(jì)要求，具有良好的工作性能。
［關(guān)鍵詞］焊接空心球節(jié)點(diǎn)；極限承載力；足尺試驗(yàn)；有限元分析
Experimental study on ultimate bearing capacity of welded hollow spherical node in Beijing A380 hangar
Hao Chengxin1, Zhu Dan2, Zhao Jida1, Zeng Yiheng1, Pei Yongzhong2, Tang Hongjun2(1 China Academy of Building Research, Beijing 100013, China; 2 China Aeronautical Project and Design Institute, Beijing 100011, China)
Abstract:Taking the welded hollow spherical nodes(D800×32)in Beijing AMECO A380 hangar as studying object, the ultimate bearing capacity of these welded hollow spherical nodes was analyzed subjected to axial compression. First, the ultimate bearing capacity of these welded hollow spherical nodes by FEM method were analyzed, then model experiments were carried out to check the results. The FEM and experiment results indicate that the welded hollow spherical nodes have good behaviors, and the ultimate bearing capacity can meet the demand of designers.
Keywords:welded hollow spherical node; ultimate bearing capacity; full size experiment; FEM analysis
作者簡(jiǎn)介：
郝成新，碩士，教授級(jí)高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:haochengxin@cabrtech.com。
參考文獻(xiàn)
［1］空間網(wǎng)格結(jié)構(gòu)技術(shù)規(guī)程(報(bào)批稿)［S］.2007.
［2］首都機(jī)場(chǎng)AMECO A380客機(jī)維修機(jī)庫鋼屋蓋節(jié)點(diǎn)試驗(yàn)研究［R］.中國(guó)建筑科學(xué)研究院,2007.