施威德勒弦支穹顶结构的静力稳定性分析与研究
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摘要
预应力弦支穹顶结构是将单层网壳和张拉整体、索穹顶等柔性结构相结合而形成的一种新型的空间结构体系。同单层曲面网壳相比,刚度和稳定性得到了很大的提高;同索穹顶相比,设计、施工、节点构造都得到了较大简化。结构体系可以更合理、更经济的应用于大跨度空间结构当中,具有很好的应用前景。
本文介绍了弦支穹顶结构的特点、组成和分类,对国内外研究现状和成果进行了总结,并提出了弦支穹顶结构需要解决的问题。利用ANSYS有限元程序对弦支穹顶结构进行线性理论分析,通过考虑矢跨比、边界条件及预应力等主要参数,对弦支穹顶结构的静力性能进行比较深入的研究和总结。
通过考虑初始几何缺陷及活荷载不利分布形式,分别对五种矢跨比的弦支穹顶和单层网壳进行特征值屈曲、非线性屈曲、非线性极限承载力、荷载-位移平衡路径跟踪分析和比较,阐述了弦支穹顶结构的各项性能。并与单层网壳进行分析对比,证实弦支穹顶结构的优越性。
通过分析拉索预应力、撑杆高度、矢跨比、布索方式、边界条件、活荷载不对称分布形式及初始缺陷等参数变化对弦支穹顶结构极限承载力、节点位移和构件内力的影响,总结出适用于弦支穹顶结构的合理的矢跨比、撑杆高度、环索预应力以及布索方式。
综上所述,本文针对预应力弦支穹顶结构,系统地研究了初始缺陷、拉索预应力、撑杆高度、矢跨比、布索方式及活荷载不对称分布形式等参数对弦支穹顶结构稳定性能的影响,得到了相应的结论、特性。并进行荷载-位移全过程平衡路径跟踪分析,总结出弦支穹顶结构的屈曲过程及屈曲位置。最后,对弦支穹顶结构研究存在的问题进行了总结和展望。
Prestress suspendome is a new type spacial structure system, which is composed by the cable dome and tensegrity system with single-layer spherical reticulated shell. Compared to single-layer spherical reticulated shell structures, stiffness and stability are improved effectively. Contrasted to cable dome, designing, constructing and joint treatments are simplified much more easily. The suspen-dome can be applied to much more large-span of the spatial structure and has a good application prospect.
This paper introduced the characteristics, composition and classification of suspendome structure, summarizing research status and achievements at home and abroad, puting forward the suspendome structure problems need to be solved. By ANSYS finite element, linear theory analysis of suspendome structures was going on. And through a lot of parameter analysis, such as rise-span ratios, boundary conditions and prestress, static performance of suspendome was deeply researched and summarized.
By considering the initial geometric imperfection and form of live—load distribution, analysis was carried out respectively for the suspendome and single-layer spherical reticulated shell of five types of rise-span ratios on eigenvalues buckling, nonlinear buckling, nonlinear limit bearing capacity. The load - displacement equilibrium path tracking analysis and comparison was also proceeded, and expounding each performance of the suspendome. Compared with single-layer spherical reticulated shell, the superiority of the suspendome structure was verified.
Through the analysis of parameters variation, such as cable prestress, struts height, rise-span ratios, cable layout, boundary conditions, live—load asymmetric distributions and initial defects, which have an influence on the suspendome’s ultimate bearing capacity, node displacement and internal force of component, some rational parameters were summarized, which were applicable to the suspendome structure, such as rise-span ratios, struts height, cable prestress and cable layout.
To sum up, this paper systematically studied the parameters variation, which have an influence on the suspendome structure stability, such as initial defects, cable prestress, struts height, rise-span ratios, cable layout and live—load asymmetric distributions. And obtaining the corresponding conclusions and characteristics. Then the whole process of load - displacement equilibrium path tracking analysis was carried out to summarize the suspendome buckling process and buckling position. Finally, the existing problems of the research of the suspendome structure is summarized and prospected.
本文介绍了弦支穹顶结构的特点、组成和分类,对国内外研究现状和成果进行了总结,并提出了弦支穹顶结构需要解决的问题。利用ANSYS有限元程序对弦支穹顶结构进行线性理论分析,通过考虑矢跨比、边界条件及预应力等主要参数,对弦支穹顶结构的静力性能进行比较深入的研究和总结。
通过考虑初始几何缺陷及活荷载不利分布形式,分别对五种矢跨比的弦支穹顶和单层网壳进行特征值屈曲、非线性屈曲、非线性极限承载力、荷载-位移平衡路径跟踪分析和比较,阐述了弦支穹顶结构的各项性能。并与单层网壳进行分析对比,证实弦支穹顶结构的优越性。
通过分析拉索预应力、撑杆高度、矢跨比、布索方式、边界条件、活荷载不对称分布形式及初始缺陷等参数变化对弦支穹顶结构极限承载力、节点位移和构件内力的影响,总结出适用于弦支穹顶结构的合理的矢跨比、撑杆高度、环索预应力以及布索方式。
综上所述,本文针对预应力弦支穹顶结构,系统地研究了初始缺陷、拉索预应力、撑杆高度、矢跨比、布索方式及活荷载不对称分布形式等参数对弦支穹顶结构稳定性能的影响,得到了相应的结论、特性。并进行荷载-位移全过程平衡路径跟踪分析,总结出弦支穹顶结构的屈曲过程及屈曲位置。最后,对弦支穹顶结构研究存在的问题进行了总结和展望。
Prestress suspendome is a new type spacial structure system, which is composed by the cable dome and tensegrity system with single-layer spherical reticulated shell. Compared to single-layer spherical reticulated shell structures, stiffness and stability are improved effectively. Contrasted to cable dome, designing, constructing and joint treatments are simplified much more easily. The suspen-dome can be applied to much more large-span of the spatial structure and has a good application prospect.
This paper introduced the characteristics, composition and classification of suspendome structure, summarizing research status and achievements at home and abroad, puting forward the suspendome structure problems need to be solved. By ANSYS finite element, linear theory analysis of suspendome structures was going on. And through a lot of parameter analysis, such as rise-span ratios, boundary conditions and prestress, static performance of suspendome was deeply researched and summarized.
By considering the initial geometric imperfection and form of live—load distribution, analysis was carried out respectively for the suspendome and single-layer spherical reticulated shell of five types of rise-span ratios on eigenvalues buckling, nonlinear buckling, nonlinear limit bearing capacity. The load - displacement equilibrium path tracking analysis and comparison was also proceeded, and expounding each performance of the suspendome. Compared with single-layer spherical reticulated shell, the superiority of the suspendome structure was verified.
Through the analysis of parameters variation, such as cable prestress, struts height, rise-span ratios, cable layout, boundary conditions, live—load asymmetric distributions and initial defects, which have an influence on the suspendome’s ultimate bearing capacity, node displacement and internal force of component, some rational parameters were summarized, which were applicable to the suspendome structure, such as rise-span ratios, struts height, cable prestress and cable layout.
To sum up, this paper systematically studied the parameters variation, which have an influence on the suspendome structure stability, such as initial defects, cable prestress, struts height, rise-span ratios, cable layout and live—load asymmetric distributions. And obtaining the corresponding conclusions and characteristics. Then the whole process of load - displacement equilibrium path tracking analysis was carried out to summarize the suspendome buckling process and buckling position. Finally, the existing problems of the research of the suspendome structure is summarized and prospected.
引文
[1]刘锡良.现代空间结构.天津大学出版社,2003
[2]张毅刚,薛素铎,杨庆山,范峰.大跨空间结构[M].北京:机械工业出版社,2005
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[4]陈志华.弦支弯顶结构体系及其结构特性分析[J].建筑结构学报,2004,34(5):38-41
[5]董石麟,罗尧治,赵阳等.新型空间结构分析、设计与施工[M].北京:人民交通出版社,2006
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[7]陈志华,弦支穹顶结构体系,第一届全国现代结构工程学术报告会论文集[J],2001:243-246
[8]尹越,韩庆华,谢礼立,刘锡良,一种新型杂交空间网格结构-弦支穹顶[J],工程力学增刊,2001
[9] Mamoru Kawaguchi ; Masaru Abe ; Tatsuo Hatato ; Ikuo Tatemichi; Satoshi Fujiwara ; Hiroaki Matsu Fuji ; Hiroyuki Yoshidaand Yishimichi Anma , ON A STRUCTURAL SYSTEM“SUSPEN-DOME”SYSTEM , Proc. of IASS Symposium Istanbul , 1993 , pp. 523-530.
[10] Mamoru Kawaguchi; Masaru Abe; Tatsuo Hatato; Ikuo Tatemichi; Satoshi Fujiwara; Hiroaki Matsufuji; Hiroyuki Yoshida and Yoshimichi Anma, STRUCTURAL TESTS ON THE“SUSPEN-DOME”SYSTEM, Proc.of IASS Symposium Atlanta, 1994, pp. 384-392.
[11] Mamoru Kawaguchi, Masaru Abe, Ikuo Tatemichi. DESIGN, TESTS AND REALIZATION OF“SUSPEN-DOME”SYSTEM. Journal of the IASS, Vol.40(1999): n.131:179-192
[12] Kawaguchi,M., Structural Tests on a Full-size Suspen Dome Structure [J], Proc.of IASS Symposium,Singapoer,1997,431-438
[13]陈志华,窦开亮等,弦支穹顶结构的稳定性分析[J].建筑结构,2004.34(5):46-48
[14]陈志华,弦支穹顶结构体系及其结构特性分析[J].建筑结构,2004.34(5):38-41
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[16]康文江,陈志华,弦支穹顶中张拉整体部分的结构作用分析,第二届全国现代结构工程学术报告会论文集,2002:401～404
[17]左晨然,陈志华,毕继红,弦支穹顶结构的线性与非线性分析,第二届全国现代结构工程学术报告会论文集,2002:412～416
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[21]李永梅,张毅刚.新型索承网壳结构非线性风振反应特性及参数分析[J].空间结构,2008
[22]崔晓强,郭彦林. Kiewitt型弦支穹顶结构的弹性极限承载力研究[J].建筑结构学报.2003.24(1)74-79
[23]崔晓强,郭彦林.弦支穹顶结构的抗震性能.地震工程与工程动.2005.25(1)67-75
[24]张爱林,张庆亮,王冬梅,王树. 2008奥运羽毛球馆新型预应力弦支穹顶结构动力特性及地震响应分析[J].钢结构,2008
[25]张爱林,张晓峰,葛家琪,刘学春,王冬梅,张宝勤. 2008奥运羽毛球馆张弦网壳结构整体稳定分析中初始缺陷的影响研究[J].空间结构,2006
[26]张爱林,刘学春,预应力弦支穹顶结构稳定性分析及优化设计[D];北京工业大学硕士学位论文,2006
[27]左晨然,弦支穹顶结构的静力与稳定性分析[D].天津大学硕士学位论文,2002
[28]康文江,弦支穹顶的静力与动力分析:[D].天津大学硕士学位论文,2002
[29]田国伟,弦支穹顶的理论分析与应用研究:[D].天津大学硕士学位论文,2001
[30]张重阳,弦支穹顶的有限元分析研究:[D].天津大学研究生毕业论文,2003
[31]陈小培,范峰.弦支穹顶结构的稳定性能研究及工程应用[D].哈尔滨工业大学硕士学位论文,2007
[32]王国强,实用工程数值模拟技术及其在ANSYS上的实践,西安:西北工业大学出版社,2001
[33]陈精一,蔡国忠,电脑辅助工程分析-ANSYS使用指南,北京:中国铁道出版社,2001
[34]蒋友谅,非线性有限元法,北京:北京工业出版社,1998
[35] ANSYS 5.7有限元实例分析教程,北京:机械工业出版社,2002
[36]尚晓江,邱峰,赵海峰,李文颖等.ANSYS结构有限元高级分析方法与范例应用[M].北京:中国水利水电出版社
[37]龚曙光,谢桂兰.ANSYS操作命令与参数化编程[M].北京:机械工业出版社
[38]陈志华,刘红波,周婷,曲秀姝.空间结构APDL参数化计算与分析[M].北京:中国水利水电出版社
[39]李萌,李峰.考虑支承结构的弦支穹顶静、动力性能分析[D].西安建筑科技大学硕士学位论文,2010
[40]王莉英,李峰.肋环型球面空腹网壳结构的动力特性及地震响应研究[D].西安建筑科技大学硕士学位论文,2010
[41]林山,李峰.三向球面空腹网壳结构稳定性及地震响应研究[D].西安建筑科技大学硕士学位论文,2010
[42]田国伟,刘金鹏,刘兴业,尹越.弦支穹顶结构中的预应力设定原则[J].第二届现代结构工程学术研讨会,2002
[43]张明山,包红泽,张志宏,董石麟.弦支穹顶结构的预应力优化设计.空间结构.2004.10(3):26-30
[44]张明山,董石麟.弦支穹顶初始预应力分布的确定及稳定性分析.空间结构.2004.10(2):8-12
[45]窦开亮,陈志华.凯威特弦支穹顶结构的稳定性分析及弦支穹顶的静力试验研究[D].天津大学研究生毕业论文,2003
[46]李政方,彭自强.弦支穹顶结构的静力性能及稳定性分析[D].武汉理工大学硕士学位论文,2009
[47]李阳,陈志华.弦支穹顶结构的稳定性分析与静力试验研究[D].天津大学研究生毕业论文,2003
[2]张毅刚,薛素铎,杨庆山,范峰.大跨空间结构[M].北京:机械工业出版社,2005
[3]蓝天.空间钢结构研究和应用的进展[J].建筑钢结构进展,2004,6(1):1-22
[4]陈志华.弦支弯顶结构体系及其结构特性分析[J].建筑结构学报,2004,34(5):38-41
[5]董石麟,罗尧治,赵阳等.新型空间结构分析、设计与施工[M].北京:人民交通出版社,2006
[6]陈志华,张拉整体结构的理论分析与试验研究[D].天津大学博士学位论文,1995.8
[7]陈志华,弦支穹顶结构体系,第一届全国现代结构工程学术报告会论文集[J],2001:243-246
[8]尹越,韩庆华,谢礼立,刘锡良,一种新型杂交空间网格结构-弦支穹顶[J],工程力学增刊,2001
[9] Mamoru Kawaguchi ; Masaru Abe ; Tatsuo Hatato ; Ikuo Tatemichi; Satoshi Fujiwara ; Hiroaki Matsu Fuji ; Hiroyuki Yoshidaand Yishimichi Anma , ON A STRUCTURAL SYSTEM“SUSPEN-DOME”SYSTEM , Proc. of IASS Symposium Istanbul , 1993 , pp. 523-530.
[10] Mamoru Kawaguchi; Masaru Abe; Tatsuo Hatato; Ikuo Tatemichi; Satoshi Fujiwara; Hiroaki Matsufuji; Hiroyuki Yoshida and Yoshimichi Anma, STRUCTURAL TESTS ON THE“SUSPEN-DOME”SYSTEM, Proc.of IASS Symposium Atlanta, 1994, pp. 384-392.
[11] Mamoru Kawaguchi, Masaru Abe, Ikuo Tatemichi. DESIGN, TESTS AND REALIZATION OF“SUSPEN-DOME”SYSTEM. Journal of the IASS, Vol.40(1999): n.131:179-192
[12] Kawaguchi,M., Structural Tests on a Full-size Suspen Dome Structure [J], Proc.of IASS Symposium,Singapoer,1997,431-438
[13]陈志华,窦开亮等,弦支穹顶结构的稳定性分析[J].建筑结构,2004.34(5):46-48
[14]陈志华,弦支穹顶结构体系及其结构特性分析[J].建筑结构,2004.34(5):38-41
[15]陈志华,左晨然,弦支穹顶结构的非线性分析,第二届全国现代结构工程学术报告会论文集,2002:396～400
[16]康文江,陈志华,弦支穹顶中张拉整体部分的结构作用分析,第二届全国现代结构工程学术报告会论文集,2002:401～404
[17]左晨然,陈志华,毕继红,弦支穹顶结构的线性与非线性分析,第二届全国现代结构工程学术报告会论文集,2002:412～416
[18]李永梅,新型索承网壳结构体系理论和试验研究[D].北京交通大学博士学位论文,2004.5
[19]李永梅,张毅刚.新型索承网壳结构静力、稳定性分析[J].空间结构,2003
[20]李永梅,张毅刚.新型索承网壳结构非线性地震反应特性和参数分析[J].地震工程与工程振动,2006
[21]李永梅,张毅刚.新型索承网壳结构非线性风振反应特性及参数分析[J].空间结构,2008
[22]崔晓强,郭彦林. Kiewitt型弦支穹顶结构的弹性极限承载力研究[J].建筑结构学报.2003.24(1)74-79
[23]崔晓强,郭彦林.弦支穹顶结构的抗震性能.地震工程与工程动.2005.25(1)67-75
[24]张爱林,张庆亮,王冬梅,王树. 2008奥运羽毛球馆新型预应力弦支穹顶结构动力特性及地震响应分析[J].钢结构,2008
[25]张爱林,张晓峰,葛家琪,刘学春,王冬梅,张宝勤. 2008奥运羽毛球馆张弦网壳结构整体稳定分析中初始缺陷的影响研究[J].空间结构,2006
[26]张爱林,刘学春,预应力弦支穹顶结构稳定性分析及优化设计[D];北京工业大学硕士学位论文,2006
[27]左晨然,弦支穹顶结构的静力与稳定性分析[D].天津大学硕士学位论文,2002
[28]康文江,弦支穹顶的静力与动力分析:[D].天津大学硕士学位论文,2002
[29]田国伟,弦支穹顶的理论分析与应用研究:[D].天津大学硕士学位论文,2001
[30]张重阳,弦支穹顶的有限元分析研究:[D].天津大学研究生毕业论文,2003
[31]陈小培,范峰.弦支穹顶结构的稳定性能研究及工程应用[D].哈尔滨工业大学硕士学位论文,2007
[32]王国强,实用工程数值模拟技术及其在ANSYS上的实践,西安:西北工业大学出版社,2001
[33]陈精一,蔡国忠,电脑辅助工程分析-ANSYS使用指南,北京:中国铁道出版社,2001
[34]蒋友谅,非线性有限元法,北京:北京工业出版社,1998
[35] ANSYS 5.7有限元实例分析教程,北京:机械工业出版社,2002
[36]尚晓江,邱峰,赵海峰,李文颖等.ANSYS结构有限元高级分析方法与范例应用[M].北京:中国水利水电出版社
[37]龚曙光,谢桂兰.ANSYS操作命令与参数化编程[M].北京:机械工业出版社
[38]陈志华,刘红波,周婷,曲秀姝.空间结构APDL参数化计算与分析[M].北京:中国水利水电出版社
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