球面巨型网格结构的构成、支承方式与力学模型
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摘要
提出了一种新的结构形式——球面巨型网壳结构。文中重点研究了肋环型和凯威特型球面巨型网格主体结构的具体构成形式、几何拓扑关系,总结了相应的形体控制参数;对子结构的形式及其与主体结构的连接进行了分析;描述了自动成形过程。使用Auto- CAD环境下的Visual C++二次开发工具编制了相应的自动成形程序;并对其主体结构支承方式与力学分析模型进行了探讨．本文工作为对该结构体系开展全面系统的力学性能研究提供了良好的前处理基础．
By applying the concept of reticulated mega-structure to conventional spherical reticulated struc- tures,a new structure-spherical reticulated mega-structure was presented.The rib-ring and kiewitt spherical reticulated mega-structure were investigated.The geometrical connections of the main structure were analyzed and corresponding control parameters were put forward.The styles of sub-structures and the connections of sub- structures to the main structure were analyzed.Automatic configuration was described and a program was devel- oped to create the structure automatically under AutoCAD with Visual C + +.Support styles of the main struc- ture and the mechanic model were also discussed.All these will provide fore treatment for the comprehensive and systemic research on the mechanical performance of the structure.
By applying the concept of reticulated mega-structure to conventional spherical reticulated struc- tures,a new structure-spherical reticulated mega-structure was presented.The rib-ring and kiewitt spherical reticulated mega-structure were investigated.The geometrical connections of the main structure were analyzed and corresponding control parameters were put forward.The styles of sub-structures and the connections of sub- structures to the main structure were analyzed.Automatic configuration was described and a program was devel- oped to create the structure automatically under AutoCAD with Visual C + +.Support styles of the main struc- ture and the mechanic model were also discussed.All these will provide fore treatment for the comprehensive and systemic research on the mechanical performance of the structure.
引文
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[2]沈世钊．大跨空间结构的发展——回顾与展望[J]．土木工程学报,1998,31(3):5-14．SHEN S Z.Development of long-span structures—a review and prospect[J].China Civil Engineering journal,1998,31(3):5- 14.(In Chinese)
[3]郑廷银,付光耀．国外巨型钢结构工程实例与启示[J]．钢结构,1999,14(2):49-53．ZHEN T Y,FU G Y.The engineering examples and inspiration for overseas mega steel structure[J].Steel Construction,1999, 14(2):49-53.(In Chinese)
[4]贺拥军,周绪红．董石麟．膜型网壳子结构巨型网格结构的整体与局部稳定性研究[J]．土木工程学报,2005,38(2):13-21．HE Y J,ZHOU X H,DONG S L.Research on overall and local stability of reticulated mega-structure with single layer membra- nous latticed shell substructure[J].China Civil Engineering Jour- nal,2005,38(2):13-21.(In Chinese)
[5]贺拥军,周绪红．董石麟．圆柱面巨型网格结构地震响应时程分析[J]．湖南大学学报:自然科学版,2005,32(3):41-46．HE Y J,ZHOU X H.DONG S L.Research on seismic responds behavior of cylindrical latticed-intersected-three-dimensional-beam- system reticulated mega-structure by time-history method[J]. Journal of Hunan University:Natural Science,2005,32(3):41- 46.(In Chinese)
[6]贺拥军．周绪红．董石麟．交叉立体桁架系巨型网格结构的简化计算法[J]．湖南大学学报:自然科学版,2006,33(2):14-17 HE Y J,ZHOU X H,DONGS L.Simplified analysis method of latticed intersected three-dimensional beam system reticulated mega-structure[J].Journal of Hunan University:Natural Sci- ence,2006,33(2):14-17.(In Chinese)
[7]Makowski Z S.Analysis,design and construction of braced domes [M].London:Cranada,1984.
[8]贺拥军．董石麟．空间网格结构计算中图形输入信息数据的新的实现方法[J]．工程图学学报,2000,21(1):41-46．HE Y J,DONG S L.New method of the realization of inputting informa- tion data in space grid structure calculation by graphic-operation[J]. Journal of Engineering Graphics,2000,21(1):41-46.(In Chinese)
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