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| 单层K8型椭球面网壳的静力稳定性分析 | |
| 引用本文： | 沈金,杨军,马洪步. 单层K8型椭球面网壳的静力稳定性分析[J]. 空间结构, 2009, 15(1) |
| 作者姓名： | 沈金 杨军 马洪步 |
| 作者单位： | 1. 浙江大学建筑设计研究院,浙江,杭州,310027 2. 杭州市城建设计院,浙江,杭州,310001 3. 浙江大学空间结构研究中心,浙江,杭州,310027 |
| 摘 要： | 利用非线性有限元法,对几百例单层K8型椭球面网壳进行了几何非线性全过程分析.得到了不同跨度、矢跨比、杆件截面尺寸情况下结构的极限承载力,并分析了这些因素对结构静力稳定性的影响.系统地考察了初始缺陷、荷载不对称分布、支承条件等对单层 K8 型椭球面网壳结构静力稳定性能的影响.通过大规模参数分析,揭示了单层 K8 型椭球网壳的稳定性能的规律.利用回归分析方法,对大量计算数据进行处理,给出了结构极限承载力的拟合公式. |
| 关 键 词： | K8 型椭球面网壳 静力稳定性 极限荷载 参数分析 |
Static stability anaysis of K8 single-layer ellipsoid reticulated shell |
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| SHEN Jin,YANG Jun,MA Hong-bu. Static stability anaysis of K8 single-layer ellipsoid reticulated shell[J]. Spatial Structures, 2009, 15(1) | |
| Authors: | SHEN Jin YANG Jun MA Hong-bu |
| Affiliation: | 1.Architecture Design & Research Institute;Zhejiang University;Hangzhou 310027;China;2.Hangzhou Urban Engineering Design &Research Institute Co.;LTD;Hangzhou 310001;3.Space Structures Research Center;China |
| Abstract: | Based on the nonlinear finite element method,the stability properties of K8 ellipsoid reticulated shells are studied with large-scale geometric parameters analyses,including the short span,rise-to-span,sizes of member sections.The initial defect,the load asymmetric distribution and supporting conditions are considered also.The impact of these factors on the static stability are studied.By parameter analysis,the law of static stability of K8 single-layer ellipsoid reticulated sheel is shown.By the regression... |
| Keywords: | ellipsoid reticulated shell static stability property limit load parameter analysis |
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