【作者】 王洪军；

【导师】 张其林；

【作者基本信息】 同济大学 ， 结构工程， 2007， 博士

【摘要】 预张力悬索拱结构组合了悬索结构和拱结构的受力特点，是一种轻质高效的结构体系。国内迄今唯一的悬索拱屋盖体系成功应用的实例是吉林省速滑馆，本论文即以该工程为背景，展开对大跨度预张力悬索拱体系的选型、优化、稳定、抗震和施工过程模拟分析。本文概括了大跨度结构的选型应当考虑的几个因素，对比分析了网壳、空间桁架、张弦梁和悬索拱结构的受力性能、室内空间利用率和建筑美感等经济技术指标，说明悬索拱结构是最优方案。本文还总结大跨度预张力结构合理形态方面的几个原则，对比分析了悬索垂跨比、吊索形式、拱梁矢跨比、桅杆倾角等因素对悬索拱结构力学性能的影响，确定了结构的最优空间几何形态，并提出了预张力确定的几个原则。本文总结了预张力结构的特征值屈曲分析方法，研究了不同荷载和不同预张力下悬索拱结构的特征值屈曲，归纳了结构特征值屈曲的特点和预张力对其影响。进一步分析了考虑初始缺陷和材料弹塑性悬索拱结构的极限承载力，提出了进行大跨度屋盖结构的稳定设计时，必须根据结构整体稳定的特征决定设计方法，不能简单套用现行网壳结构设计规程对结构整体稳定设计的规定的设计思想。本文在对预张力悬索拱结构动力特性分析的基础上，利用底部剪力法、反应谱法和动力时程法分析了的结构的地震作用效应，提出了针对该种结构体系地震反应分析的建议，以供设计参考。本文在总结文献对预张力结构施工过程模拟方法的基础上，提出了张拉过程中索单元的数值处理方式。最后对吉林省速滑馆悬索拱屋盖结构施工过程进行了跟踪模拟和施工误差分析，结果表明文中针对结构自身全铰接特点所选的施工张拉方法是合理的。更多还原

【Abstract】 The pre-tensioned suspension cable arch structure, a structure of low weight andhigh strength, incorporates the mechanical behaviors of the suspension cable and thearch. It has been applied uniquely to Jilin speed-skating gymnasium so far in China.Based on the project, the dissertation presents a detailed analysis of the structural typechoice, shape optimal, stability, earthquake responses and construction processsimulation of the long-spanned pre-tensioned suspension cable arch structure.The dissertation outlines the factors to be considered in form-finding oflong-spanned structures, compares the mechanical behaviors, inner space utility andaesthetic value of reticulated shell, spatial truss, string beam and suspension cablearch structure and concludes that suspension cable arch structure is the optimal plan.It also summarizes the principles in the rational forms of long-spanned pre-tensionedsuspension cable arch structure, compares the influence of the cable ratio of sag tospan, hanger cable, the arch ratio of rise to span, mast obliquity on the dynamiccharacteristic of suspension cable arch structure, determines the optimal spatial formand advances the principles in determining the pre-tension.The dissertation summarizes the methods of eigenvalue buckling analysis ofpre-tensioned structure, explores the eigenvalue buckling of suspension cable archstructure under different load distribution and different pre-tension and concludes thefeatures of eigenvalue buckling and the influence of pre-tension. By further analyzingthe influence of initial imperfections and material elastic-plastic on ultimate capacityof suspension cable arch structure, it is proposed that in designing long-spanned roofstructure the reticulated shell structure design regulation should not be appliedmechanically. Instead the overall stability should be considered.Based on the dynamic characteristic analysis of pre-tensioned suspension cablearch structure, the dissertation presents an analysis of earthquake responses of thestructure by equivalent base sheer method, earthquake response spectrum method andtime-history method and makes suggestions in designing similar structures. Based on a summary of literature available on construction process simulationof pre-tensioned structure, the dissertation proposes ways to process numerical valuesof cable clement in construction process. Finally construction process simulation andconstruction error analysis of Jilin speed-skating gymnasium roof structure prove thatthe construction method to meet the hinged connection of the structure is feasible.更多还原