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龐巖峰，趙陽，董石麟

（浙江大學(xué)空間結(jié)構(gòu)研究中心， 杭州 310058）

［摘要］杭州火車東站站房鋼屋蓋采用由變橢圓截面斜鋼柱和鋼管格構(gòu)斜柱支承的大跨度鋼管空間桁架結(jié)構(gòu)，各類空間相貫節(jié)點(diǎn)構(gòu)造復(fù)雜。為全面了解復(fù)雜節(jié)點(diǎn)的受力性能，檢驗(yàn)其強(qiáng)度是否滿足設(shè)計(jì)要求，同時(shí)驗(yàn)證有限元分析模型的可靠性，對(duì)位于屋蓋桁架、格構(gòu)斜柱、單層橢球面網(wǎng)殼等不同位置的若干關(guān)鍵節(jié)點(diǎn)進(jìn)行了試驗(yàn)研究。在簡(jiǎn)要介紹試驗(yàn)節(jié)點(diǎn)設(shè)計(jì)、加載裝置、加載制度及測(cè)點(diǎn)布置方案的基礎(chǔ)上，給出了主要試驗(yàn)結(jié)果及有限元分析結(jié)果。研究結(jié)果表明，各類節(jié)點(diǎn)均具有良好的承載能力，節(jié)點(diǎn)設(shè)計(jì)安全可靠，彈塑性非線性有限元分析可以較好地模擬試驗(yàn)節(jié)點(diǎn)的受力性能。

［關(guān)鍵詞］杭州火車東站； 空間鋼管桁架結(jié)構(gòu)； 鋼管相貫節(jié)點(diǎn)； 試驗(yàn)研究； 極限承載力； 有限元分析

中圖分類號(hào)：TU3923，TU317文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002848X(2013)07008206

Experimental research and finite element analysis on tubular joints of Hangzhou East Railway Station

Pang Yanfeng, Zhao Yang, Dong Shilin

(Space Structures Research Center, Zhejiang University, Hangzhou 310058, China)

Abstract:The roof structure for the main building of Hangzhou East Railway Station adopts a longspan spatial steel truss supported by inclined elliptical steel columns with variable cross sections and inclined tubular lattice steel columns. Spatial tubular joints in this structure have complicated configurations. In order to investigate the structural behavior of the complex joints, to test whether their strengths meet the design requirements and to verify the reliability of the finite element model, experiments were carried out on several key joints located at the roof truss, the inclined lattice columns and the singlelayer ellipsoid reticulated shell respectively. Followed by a brief introduction on the test joint design, loading device, loading procedure and measuring point layout scheme, the main experimental results and the corresponding finite element results were described. It is shown that, all test joints have good bearing capacity, the design of joints is safe and reliable, and the elastoplastic nonlinear finite element analysis can simulate the bearing behavior of the test joints satisfactorily.

Keywords:Hangzhou East Railway Station; spatial steel truss structure; tubular joint; experimental research; ultimate bearing capacity; finite element analysis

通訊作者：趙陽，教授，博士生導(dǎo)師，Email:ceyzhao@aju.edu.cn。

參考文獻(xiàn)

［1］周德良，李霆，錢屹，等. 杭州東站站房主體結(jié)構(gòu)設(shè)計(jì)與分析［J］. 建筑結(jié)構(gòu)，2011, 41(7): 7483.

［2］張衛(wèi)，趙福令，李霆，等. 杭州東站站臺(tái)雨棚結(jié)構(gòu)設(shè)計(jì)及分析［J］. 建筑結(jié)構(gòu)，2011, 41(7): 8488.

［3］DEXTER E M, LEE M M K. Static strength of axially loaded tubular Kjoints.I: behavior［J］. Journal of Structural Engineering, 1999, 125(2): 194201.

［4］SOHU C K, CHAN T K, YU S K. Limit analysis of ultimate strength of tubular Xjoints［J］. Journal of Structural Engineering, 2000, 126(7): 790797.

 ［5］ZHAO X L, HANCOCK G J. Plastic mechanism analysis of Tjoints in RHS subject to combined bending and concentrated force［C］//Proceeding of the Fifth International Symposium on Tubular Structure. 1993: 345352.

［6］LEE M M K, WILMSHURST S R. Strength of multiplanar tubular KKjoints under antisymmetrical axial loading［J］. Journal of Structural Engineering, 1997, 123(6): 755764.

［7］陳以一，陳揚(yáng)驥，詹琛. 圓鋼管空間相貫節(jié)點(diǎn)的實(shí)驗(yàn)研究［J］. 土木工程學(xué)報(bào)，2003, 36(8): 2430.

［8］李華靜，沈祖炎. 多平面KK形和TT形圓管節(jié)點(diǎn)強(qiáng)度公式的建議［J］. 結(jié)構(gòu)工程師，1998(2): 1620.

［9］李常虹，陳志強(qiáng)，肖克艱，等. 成都雙流國際機(jī)場(chǎng)T2航站樓鋼結(jié)構(gòu)屋蓋相貫節(jié)點(diǎn)極限承載力分析［J］. 建筑結(jié)構(gòu)，2010，40(9): 2022.

［10］張國軍，王樹，王耀峰，等. 弦桿受壓大直徑空間相貫節(jié)點(diǎn)足尺模型試驗(yàn)與設(shè)計(jì)研究［J］. 建筑結(jié)構(gòu)，2010，40(12): 1018.