| 球面巨型网格结构动力特性及抗震分析 |
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| 引用本文： | 李峰,郭宏超,刘建毅. 球面巨型网格结构动力特性及抗震分析[J]. 钢结构, 2008, 23(9): 7-11 |
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| 作者姓名： | 李峰 郭宏超 刘建毅 |
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| 作者单位： | 西安建筑科技大学,土木工程学院,西安,710055;西安建筑科技大学,土木工程学院,西安,710055;西安建筑科技大学,土木工程学院,西安,710055 |
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| 基金项目： | 陕西省教育厅重点实验室科研计划项目 |
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| 摘 要： | 在分析巨型网格结构的特点及研究状况的基础上，应用有限元理论和子空间迭代法求得球面巨型网格结构的自振频率和搌型，并讨论矢跨比、结构跨度、结构约束、立体桁架梁高度、荷载大小、杆件截面等参数对巨型球面网格结构基频的影响，应用振型分解反应谱法进行抗震计算，并对结构杆件动、静内力比值进行比较。
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| 关 键 词： | 球面巨型网格结构 动力特性 参数分析 |
DYNAMIC CHARACTER AND SEISMIC ANALYSIS OF SPHERICAL RETICULATED MEGA-STRUCTURE |
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| Li Feng,Guo Hongchao,Liu Jianyi. DYNAMIC CHARACTER AND SEISMIC ANALYSIS OF SPHERICAL RETICULATED MEGA-STRUCTURE[J]. Steel Construction, 2008, 23(9): 7-11 |
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| Authors: | Li Feng Guo Hongchao Liu Jianyi |
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| Affiliation: | Li Feng GuoHongchao Liu Jianyi (Department of Civil Engineering, Xi＇an University of Architecture and Technology Xi＇an 710055) |
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| Abstract: | In the analysis of the spherical reticulated mega-structure’s character and development situation. Then, the structure’s natural frequency of vibration and mode shapes are provided by finite element method theory and method of sub-space iteration. Moreover, the influences of ratio of the rise to span, span structural, structural constraints, three-dimensional truss beam height, load size, bar section are discussed. Seismic analysis is computed by response spectrum method. Through the structural element’s comparison of the ratio of dynamic force with static force, the useful conclusions are gotten. |
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| Keywords: | spherical reticulated mega-structure dynamic character parameter analysis |
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