铁道工程学报
鐵道工程學報
철도공정학보
JOURNAL OF THE RAILWAY ENGINEERING SOCIETY
2013年
11期
82-87
,共6页
劲性支撑穹顶结构%安装张拉方法%动力松弛法%实现策略
勁性支撐穹頂結構%安裝張拉方法%動力鬆弛法%實現策略
경성지탱궁정결구%안장장랍방법%동력송이법%실현책략
rigid bracing dome%installation and tensioning method%dynamic relaxation method%implementation strategy
研究目的：劲性支撑穹顶结构是一种新型的预应力空间结构，克服了索穹顶结构的许多施工技术难题。该结构具有节点定位容易、结构效率高及自支撑自平衡等特点。从工程应用的角度，结合劲性支撑穹顶结构的自身特点，本文提出了一种施工安装张拉方法，并给出了模拟分析策略及程序实现方法。<br> 研究结论：（1）提出逐节点拼装整体张拉提升的施工安装张拉方法，给出了施工控制和监测方法；（2）采用改进的动力松弛法对施工过程进行模拟分析，给出实现策略，采用 FORTRAN 和 ANSYS 的 APDL 语言编制程序；（3）算例分析表明，提出的施工安装方法可以有效减小结构构件在施工张拉过程中的超张拉问题；（4）研究成果为劲性支撑穹顶结构的工程实践提供施工和分析方法等方面的参考。
研究目的：勁性支撐穹頂結構是一種新型的預應力空間結構，剋服瞭索穹頂結構的許多施工技術難題。該結構具有節點定位容易、結構效率高及自支撐自平衡等特點。從工程應用的角度，結閤勁性支撐穹頂結構的自身特點，本文提齣瞭一種施工安裝張拉方法，併給齣瞭模擬分析策略及程序實現方法。<br> 研究結論：（1）提齣逐節點拼裝整體張拉提升的施工安裝張拉方法，給齣瞭施工控製和鑑測方法；（2）採用改進的動力鬆弛法對施工過程進行模擬分析，給齣實現策略，採用 FORTRAN 和 ANSYS 的 APDL 語言編製程序；（3）算例分析錶明，提齣的施工安裝方法可以有效減小結構構件在施工張拉過程中的超張拉問題；（4）研究成果為勁性支撐穹頂結構的工程實踐提供施工和分析方法等方麵的參攷。
연구목적：경성지탱궁정결구시일충신형적예응력공간결구，극복료색궁정결구적허다시공기술난제。해결구구유절점정위용역、결구효솔고급자지탱자평형등특점。종공정응용적각도，결합경성지탱궁정결구적자신특점，본문제출료일충시공안장장랍방법，병급출료모의분석책략급정서실현방법。<br> 연구결론：（1）제출축절점병장정체장랍제승적시공안장장랍방법，급출료시공공제화감측방법；（2）채용개진적동력송이법대시공과정진행모의분석，급출실현책략，채용 FORTRAN 화 ANSYS 적 APDL 어언편제정서；（3）산례분석표명，제출적시공안장방법가이유효감소결구구건재시공장랍과정중적초장랍문제；（4）연구성과위경성지탱궁정결구적공정실천제공시공화분석방법등방면적삼고。
Research purposes:Rigid bracing domes are a new type of prestressed spatial structures,many construction technology challenges of cable domes are overcome by it.The structure has characteristics of easy node location,high efficiency,the support from the balance and so on.According to characteristics of rigid bracing dome,the construction method was proposed from the engineering view, and then simulation analysis strategies and procedures for implementation were given. <br> Research conclusions:(1 )The method is that rods are installed in accordance with the order of nodes and then the system are enhanced the overall and tensioned.Construction control and monitoring methods were given.(2 )The construction process was simulated by the improved dynamic relaxation method.Implementation strategy was given. Program was programmed by using FORTRAN language and ANSYS APDL language.(3)Numerical example shows that super -tensioned problem can be effectively reduced through the proposed construction and installation methods. (4)References to the construction and analysis are provided by the results for practical engineering of rigid bracing dome.
