| 2010年上海世博会主题馆屋盖结构弹塑性极限承载力分析 |
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| 引用本文： | 温家鹏,丁洁民.2010年上海世博会主题馆屋盖结构弹塑性极限承载力分析[J].钢结构,2010,25(4):1-5. |
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| 作者姓名： | 温家鹏 丁洁民 |
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| 作者单位： | 1. 宁波市发展规划研究院,浙江宁波,315000;同济大学建筑设计研究院,上海,200092
2. 同济大学建筑设计研究院,上海,200092 |
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| 基金项目： | 上海市科委科研计划资助项目(07dz05801) |
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| 摘 要： | 以上海世博会主题馆屋盖结构为研究对象,采用通用有限元程序ANSYS对结构整体模型和屋盖单独模型进行弹塑性极限承载力全过程分析,分析结构的屈服机制、失效机制和结构在屋盖单独模型和整体模型中的全过程反应特征。分析表明,张弦桁架结构的预应力索杆体系可有效提高结构的刚度,结构塑性发展遵循连续梁结构的力学性态,结构的弹性支承边界条件在一定程度上能提高结构的极限承载能力。
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| 关 键 词： | 张弦桁架 弹塑性极限承载力 失效机制 整体模型 |
ANALYSIS OF THE ELASTOPLASTIC ULTIMATE CAPACITY OF ROOF STRUCTURES OF 2010 SHANGHAI EXPO THEME PAVILION |
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| Wen Jiapeng,Ding Jiemin.ANALYSIS OF THE ELASTOPLASTIC ULTIMATE CAPACITY OF ROOF STRUCTURES OF 2010 SHANGHAI EXPO THEME PAVILION[J].Steel Construction,2010,25(4):1-5. |
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| Authors: | Wen Jiapeng Ding Jiemin |
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| Affiliation: | 1.Ningbo Development Planning and Research Institute;Ningbo 315000;China;2.The Architectural Design and Research Institute of Tongji University;Shanghai 200092;China |
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| Abstract: | Taking 2010 Shanghai Expo theme pavilion as the object,the elastoplastic ultimate capacities of roof structures of theme pavilion are analyzed by using the general finite element program-ANSYS,modeling the integrated and roof itself-only structures analytical model.The yielding mechanism,failure mechanism and the properties of structures response of roof structures in full model and roof model,respectively,are analyzed.The results show that the prestressed cable-strut system of spatial truss string structur... |
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| Keywords: | truss string structures elastoplastic ultimate capacity failure mechanism full model |
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