- 摘 要
-
［摘要］空間折板式斜交網(wǎng)格結(jié)構(gòu)由于結(jié)構(gòu)體系及節(jié)點構(gòu)造復雜，施工過程中影響結(jié)構(gòu)受力和變形的因素眾多，對整個施工過程進行仿真分析和監(jiān)測成為保證結(jié)構(gòu)施工安全的重要技術措施。以黃石體育館鋼屋蓋工程為例，基于有限元理論的狀態(tài)變量疊加法，進行了其施工過程的仿真分析，確定了施工過程中屋蓋結(jié)構(gòu)的關鍵桿件與部位，并現(xiàn)場監(jiān)測了主要桿件的應力和節(jié)點的位移。結(jié)果表明，施工仿真計算值與實測值吻合較好，驗證了施工仿真分析方法的有效性和監(jiān)測的可靠性。
［關鍵詞］空間折板式斜交網(wǎng)格結(jié)構(gòu)；施工仿真； 施工監(jiān)測； 有限元法
中圖分類號：TU337文獻標識碼：A文章編號：1002-848X(2011)12-0122-03
Construction simulation of spatial folded plate diagrid structure
Ren Zhigang1, Liu Weijun1, Zhang Mingyuan2, Peng Wentao2(1 School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, China；2 Design Institute of Wuhan University of Technology, Wuhan 430070, China)
Abstract:Due to complicated structural system and joint configuration, internal force and deformation of spatial folded plate diagrid structure are influenced by many factors during the construction process, which make the simulation and monitoring become more important technical measures. Taking the Huangshi gymnasium as a project case, simulation on construction stages of the structure was carried out employing the state variable superimposed analysis method based on the finite element theory. The key structural members and locations with the maximum potential failure during the construction process were identified, and the strains of members and displacements of joints were monitored during the construction stages. The results show that the analysis values and monitoring data agree well, which verify the availability of the construction simulation method and reliability of the field monitoring.
Keywords:spatial folded plate diagrid structure; construction simulation; construction monitoring; finite element method
作者簡介：任志剛，博士，副教授，一級注冊結(jié)構(gòu)工程師，Email: whut.ren@163.com。
參考文獻
［1］劉濤. 大跨度空間結(jié)構(gòu)施工的數(shù)值模擬與健康監(jiān)測［D］. 天津: 天津大學, 2005.
［2］ 張慎偉. 大型鋼結(jié)構(gòu)施工過程計算理論與監(jiān)測技術［D］. 上海: 同濟大學, 2008.
［3］ 王光遠. 論時變結(jié)構(gòu)力學［J］. 土木工程學報, 2000, 33(6): 105-108.
［4］ CHOI C K, CHUNG H K, LEE D G, et al. Simplified building analysis with sequential dead loads-CFM［J］. Journal of Structural Engineering, ASCE, 1992, 118(4):944-954.
［5］ 卓新, 董石麟.施工階段內(nèi)力與變位疊加法及其應用［J］. 浙江大學學報:工學版, 2003,37(5): 556-559.
［6］ 沈祖炎, 張立新. 基于非線性有限元的索穹頂施工模擬分析［J］. 計算力學學報, 2002, 19(4): 466-471.
［7］ WOOD R D, ZIENKIEWICZ O C. Geometrically nonlinear finite element analysis of beams, frames, arches and axisymmetric shells［J］. Computers ＆ Structures,1997,7(3):725-735.
［8］ 那向謙，沈祖炎. 結(jié)構(gòu)工程學的研究現(xiàn)狀和趨勢［M］. 上海: 同濟大學出版社, 1995: 22-31.
［9］ 羅永峰, 王春江, 陳曉明，等. 建筑鋼結(jié)構(gòu)施工力學原理［M］. 北京: 中國建筑工業(yè)出版社, 2009: 75-77.
