新型张弦网壳组合结构的设计与分析
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摘要
在鄂尔多斯东胜体育中心综合体育馆展厅结构设计中,提出了在张弦桁架之间设置双层网壳的新结构体系,在满足复杂建筑造型的同时,有效增加了结构的刚度和稳定性.设计了接近实际工程的基本算例,从整体模型入手,全面分析了垂跨比、初始预应力和撑杆数量变化对结构静力性能、动力性能以及用钢量的影响.依据分析结果,对不规则造型的鄂尔多斯东胜体育中心综合体育馆展厅进行设计,其中索的预应力是设计中的难点和关键,本文给出了详尽的调索方法和依据.
A new hybrid structure arranging a double-layer shell between truss strings was proposed in the project-roof design of the Exhibition Center in Erdos Dong-sheng Sports Center.The new structure system not only meets the demand of adapting to an irregular large-span roof,but also increases the structural stiffness and stability.Model examples close to the actual project was designed.The effects of sag-to-span ratio,initial prestresses and the numbers of struts on the static and dynamic behaviors and the steel consumption of the integral structure were fully analyzed by concerning the integrate model.Based on the research result of model examples,the irregular roof of Erdos Dong-sheng Exhibition Center was designed.Besides,the design of the pre-stressed cable is difficult and critical,and a detailed method and the corresponding reference to adjust the pre-stressed cable were provided.
A new hybrid structure arranging a double-layer shell between truss strings was proposed in the project-roof design of the Exhibition Center in Erdos Dong-sheng Sports Center.The new structure system not only meets the demand of adapting to an irregular large-span roof,but also increases the structural stiffness and stability.Model examples close to the actual project was designed.The effects of sag-to-span ratio,initial prestresses and the numbers of struts on the static and dynamic behaviors and the steel consumption of the integral structure were fully analyzed by concerning the integrate model.Based on the research result of model examples,the irregular roof of Erdos Dong-sheng Exhibition Center was designed.Besides,the design of the pre-stressed cable is difficult and critical,and a detailed method and the corresponding reference to adjust the pre-stressed cable were provided.
引文
[1]Saitoh M.Principle of Beam String Structure//Proceedings of theInternational Colloquium on Space Structures for Sports Buildings.Madrid,1986:617
[2]Kato S,Nakazawa S,Matsue Y,et al.Active control of axialforces in beam string space frames//IASS Symposium on Spatial,Lattice and Tension Structure.Atlanta:ASCE,1994:664
[3]Chen R Y,Dong S L,Sun W B.Design and analysis of a long-span pre-stressed truss string structure.Spat Struct,2003,9(1):45(陈荣毅,董石麟,孙文波.大跨度预应力张弦桁架结构的设计与分析.空间结构,2003,9(1):45)
[4]Bai Z X,Liu X L,Li Y S.Influence analysis of factors of singlebeam string structure.Steel Struct,2001,16(3):42(白正先,刘锡良,李义生.单榀张弦梁结构各因数的影响分析.钢结构,2001,16(3):42)
[5]Chen H X,Shu X W.Influence analysis of prestress on mechani-cal performance of beam string structure.J South China Univ Tech-nol Nat Sci,2003,31(5):79(陈汉翔,舒宣武.预应力值对张弦梁结构受力性能的影响分析.华南理工大学学报:自然科学版,2003,31(5):79)
[6]Wang X L,Liu Y Z.Influences of rise-to-span ratio and sag-to-span ratio on the prestressed spatial truss string structure.SpatStruct,2005,11(1):35(王秀丽,刘永周.矢跨比和垂跨比对张弦立体桁架性能的影响分析.空间结构.2005,11(1):35)
[7]Wang X L,Ding N S,Cui J F.Analysis of free vibration charac-teristics of stringed beam structure.J Lanzhou Univ Technol,2006,32(4):105(王秀丽,丁南生,崔继付.张弦梁结构的自振特性分析.兰州理工大学学报,2006,32(4):105)
[8]Wang X L,Ding N S,Chai H.Seismic response and parametricanalysis of beam string structures.Spat Struct,2006,12(2):34(王秀丽,丁南生,柴宏.大跨度张弦梁结构非线性地震响应及参数分析.空间结构,2006,12(2):34)
[9]Kong D D,Zhang H X,Zhao X.Dynamic property and earth-quake response analysis of cable-strut-supported shell structure.World Earthquake Eng,2008,24(4):136(孔丹丹,张海霞,赵欣.张弦网壳结构的自振特性及地震响应分析.世界地震工程,2008,24(4):136)
[10]Xiong W,Wu M Z.Vertical seismic response analyses of large-span truss string structures.World Earthquake Eng,2007,23(2):145(熊伟,吴敏哲.大跨度张弦桁架竖向地震反应分析.世界地震工程,2007,23(2):145)
[2]Kato S,Nakazawa S,Matsue Y,et al.Active control of axialforces in beam string space frames//IASS Symposium on Spatial,Lattice and Tension Structure.Atlanta:ASCE,1994:664
[3]Chen R Y,Dong S L,Sun W B.Design and analysis of a long-span pre-stressed truss string structure.Spat Struct,2003,9(1):45(陈荣毅,董石麟,孙文波.大跨度预应力张弦桁架结构的设计与分析.空间结构,2003,9(1):45)
[4]Bai Z X,Liu X L,Li Y S.Influence analysis of factors of singlebeam string structure.Steel Struct,2001,16(3):42(白正先,刘锡良,李义生.单榀张弦梁结构各因数的影响分析.钢结构,2001,16(3):42)
[5]Chen H X,Shu X W.Influence analysis of prestress on mechani-cal performance of beam string structure.J South China Univ Tech-nol Nat Sci,2003,31(5):79(陈汉翔,舒宣武.预应力值对张弦梁结构受力性能的影响分析.华南理工大学学报:自然科学版,2003,31(5):79)
[6]Wang X L,Liu Y Z.Influences of rise-to-span ratio and sag-to-span ratio on the prestressed spatial truss string structure.SpatStruct,2005,11(1):35(王秀丽,刘永周.矢跨比和垂跨比对张弦立体桁架性能的影响分析.空间结构.2005,11(1):35)
[7]Wang X L,Ding N S,Cui J F.Analysis of free vibration charac-teristics of stringed beam structure.J Lanzhou Univ Technol,2006,32(4):105(王秀丽,丁南生,崔继付.张弦梁结构的自振特性分析.兰州理工大学学报,2006,32(4):105)
[8]Wang X L,Ding N S,Chai H.Seismic response and parametricanalysis of beam string structures.Spat Struct,2006,12(2):34(王秀丽,丁南生,柴宏.大跨度张弦梁结构非线性地震响应及参数分析.空间结构,2006,12(2):34)
[9]Kong D D,Zhang H X,Zhao X.Dynamic property and earth-quake response analysis of cable-strut-supported shell structure.World Earthquake Eng,2008,24(4):136(孔丹丹,张海霞,赵欣.张弦网壳结构的自振特性及地震响应分析.世界地震工程,2008,24(4):136)
[10]Xiong W,Wu M Z.Vertical seismic response analyses of large-span truss string structures.World Earthquake Eng,2007,23(2):145(熊伟,吴敏哲.大跨度张弦桁架竖向地震反应分析.世界地震工程,2007,23(2):145)
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