悬架穹顶结构整体稳定性分析

2013 Fifth International Conference on Measuring Technology and Mechatronics Automation Pub Date : 2013-01-16 DOI:10.1109/ICMTMA.2013.64

Jiang Zheng-rong, Chen Qing-jun, Shi Kai-rong, K. Peng

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引用次数: 1

摘要

考虑活荷载的几何非线性、初始几何缺陷和半跨分布，利用ANSYS软件分别对跨度110m×80m的椭圆抛物面悬吊穹顶结构及其单层格壳结构进行了整体稳定性分析。结果表明:在三种荷载组合下，悬索穹顶的稳定承载力系数比相应的单层网壳提高了100%，充分显示了引入索杆体系后悬索穹顶的优势。单层网壳对缺陷更为敏感，荷载的不对称分布对两种结构的系数影响不大。

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Analysis of Overall Stability of a Suspended Dome Structure

The overall stability analysis of an elliptic paraboloid suspended dome structure of span 110m×80m and the corresponding single layer latticed shell conducted by ANSYS is investigated respectively by taking into account geometric nonlinearity, initial geometric imperfection and half-span distribution of live loads. The results show that the coefficient of stable bearing capacity of suspended dome increases by 100% compared with that of the corresponding single layer latticed shell under three kinds of load combinations, which fully reveals the advantages of suspended dome due to introducing the cable-strut system. The single layer latticed shell is more sensitive to the imperfection, and the unsymmetrical distribution of loads has little effect on the coefficient of these two structures.

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2013 Fifth International Conference on Measuring Technology and Mechatronics Automation

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