天津奥林匹克体育中心游泳跳水馆施工过程分析
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摘要
天津奥林匹克体育中心游泳跳水馆的屋盖结构体系采用了空间桁架结构。对于空间桁架结构而言,目前多数研究主要集中在节点承载力、静动力性能及其稳定性能上,对于结构施工过程的数值模拟涉及较少。而在大跨度空间钢结构桁架施工过程中,由于结构温度的变化、太阳辐射的影响和卸载方案的差异,施工过程将对结构在使用阶段的力学性能产生显著的影响。以天津奥林匹克体育中心游泳跳水馆钢结构空间桁架结构为工程背景,分析了不同卸载方案、考虑太阳辐射影响的不同合拢温度下钢结构桁架的杆件内力、节点位移、支座反力等结构响应,得出了卸载方案和合拢温度对结构性能的影响程度,为今后大跨度桁架结构的施工方案制定提供了参考和设计依据。
The traditional spatial structure,space truss structures,was adopted in the roof structure of Swimming and Diving Hall of Tianjin Olympic Center.For the space truss structures,the main research was focused on the bearing capacity of joints,static behavior,dynamic behavior and stability behavior and so on.And few research referred to the numerical simulation of the construction process and the effect of construction process on the structural behavior in service stage.However,During the construction process of large-span space trusses,the unloading plan,solar radiation and ambient temperature change have a significant effect on the structural property in its service stage.The roof structure of Swimming and Diving Hall of Tianjin Olympic Center was taken as the research object here,and its member forces,nodal displacements and bearing reactions were analyzed under different unloading plans and healing temperatures.Based on the results,the optimal unloading plan and healing temperature are recommended,which can be important data for later design and research.
The traditional spatial structure,space truss structures,was adopted in the roof structure of Swimming and Diving Hall of Tianjin Olympic Center.For the space truss structures,the main research was focused on the bearing capacity of joints,static behavior,dynamic behavior and stability behavior and so on.And few research referred to the numerical simulation of the construction process and the effect of construction process on the structural behavior in service stage.However,During the construction process of large-span space trusses,the unloading plan,solar radiation and ambient temperature change have a significant effect on the structural property in its service stage.The roof structure of Swimming and Diving Hall of Tianjin Olympic Center was taken as the research object here,and its member forces,nodal displacements and bearing reactions were analyzed under different unloading plans and healing temperatures.Based on the results,the optimal unloading plan and healing temperature are recommended,which can be important data for later design and research.
引文
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[2]徐友良.桁架结构大变形问题的位置解法[J].工程力学,2010,27(增刊I):43-47Xu Youliang.Location vector method to solve the large deformation of truss structures[J].Engineering Mechanics,2010,27(Suppl.I):43-47(in Chinese)
[3]孙焕纯,王跃方.对桁架结构稳定分析经典理论的讨论[J].计算力学学报,2005,22(2):316-319Sun Huanchun,Wang Yuefang.Comment on classical theory of stability analysis for truss structures[J].Chinese Journal of Computational Mechanics,2005,22(2):316-319(in Chinese)
[4]刘西拉,王开健,张春俊.桁架结构材料非线性弹性问题的广义逆力法[J].工程力学,2005,22(增刊):7-15Liu Xila,Wang Kaijian,Zhang Chunjun.The large increment method for nonlinear elastic problems of truss systems[J].Engineering Mechanics,2005,22(Suppl.):7-15(in Chinese)
[5]张俊兵,朱宏平,王丹生,等.波谐单元法在空间桁架地震响应分析中的应用[J].振动与冲击,2011,30(5):245-250Zhang Junbing,Zhu Hongping,Wang Dansheng,et al.Application of spectral element method in dynamic analysis of a space truss subjected to seismic load[J].Journal of Vibration and Shock,2011,30(5):245-250(in Chinese)
[6]黄政华,张其林,杨宗林,等.平面钢管桁架的面外稳定分析模型研究[J].土木工程学报,2011,44(5):49-56Huang Zhenghua,Zhang Qilin,Yang Zonglin,et al.Study of model for out-of-plane stability of planar tubular trusses[J].China Civil Engineering Journal,2011,44(5):49-56(in Chinese)
[7]周建民,陈顺,常建新.大跨度空间钢管桁架的卸载过程模拟及控制[J].建筑钢结构进展,2008,10(4):14-17Zhuo Jianmin,Chen Shun,Chang Jianxin.Control and simulation of construction process of a large-span steel pipe truss[J].Progress in Steel Building Structures,2008,10(4):14-17(in Chinese)
[8]范重,王茹,唐杰.国家体育场大跨度钢结构温度场分析与合拢温度研究[J].建筑结构学报,2007,28(2):32-40Fan Zhong,Wang Ru,Tang Jie.Analysis on temperature field and determination of temperature upon healing of large-span steel structure of the National Stadium[J].Journal of Building Structures,2007,28(2):32-40(in Chinese)
[9]樊小卿.温度作用与结构设计[J].建筑结构学报,1999,20(2):43-50Fan Xiaoqing.Temperature action and structural design[J].Journal of Building Structures,1999,20(2):43-50(in Chinese)
[10]樊晓卿,吴为.武汉国际会展中心的温度作用设计[J].建筑结构,2002,32(l):9-12Fan Xiao qing,Wu Wei.Design for temperature action on Wuhan International Exhibition Center[J].Building Structures,2002,32(l):9-12(in Chinese)
[11]陈志华,刘红波,周婷,等.空间钢结构APDL参数分析与计算[M].北京:中国水利水电出版社,2009Chen Zhihua,Liu Hongbo,Zhou Ting,et al.Parametric analysis of spatial steel structures using APDL language[M].Beijing:China WaterPower Press,2009(in Chinese)
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