| 水平阶跃荷载作用下单层球面网壳结构的动力稳定性 |
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| 引用本文： | 郭海山,王林安,沈世钊.水平阶跃荷载作用下单层球面网壳结构的动力稳定性[J].哈尔滨建筑大学学报,2002,35(5):17-22. |
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| 作者姓名： | 郭海山 王林安 沈世钊 |
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| 作者单位： | 哈尔滨工业大学土木工程学院,黑龙江,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金重大项目(59895410.5.3) |
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| 摘 要： | 以具有实际工程意义的40m跨度K8型单层球面网壳为研究对象，在分析单层网壳结构在水平阶跃荷载作用下动力失稳过程的基础上，探讨了网壳结构的动力稳定性临界荷载的判定方法，研究了矢跨比、弹塑性、阻尼和初始几何缺陷等因素对网壳结构动力稳定性临界荷载的影响，并进一步分析了水平阶跃荷载与水平静荷载及水平地震荷载作用下的稳定性临界荷载之间的关系。
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| 关 键 词： | 水平跃阶荷载 单层球面 网壳结构 动力稳定性 |
| 文章编号： | 1006-6780(2002)05-0017-06 |
| 修稿时间： | 2002年8月25日 |
Dynamic stability of single-layer reticulated domes under horizontal sudden loads |
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| GUO Hai-shan,WANG Lin-an,SHEN Shi-zhao.Dynamic stability of single-layer reticulated domes under horizontal sudden loads[J].Journal of Harbin University of Civil Engineering and Architecture,2002,35(5):17-22. |
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| Authors: | GUO Hai-shan WANG Lin-an SHEN Shi-zhao |
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| Abstract: | The dynamic stability of single-layer reticulated domes under horizontal sudden load is discussed.A practical method for researching dynamic stability of single-layer reticulated domes is put forward.A compre-hensive numerical analysis on dynamic stability behavior of some proto-type single layer reticulated domes is carried out with the following primary parameters:various rise-to-span ratios;different constitutive relation of steel;different initial geometric imperfections and damp effect.The quantity relationship of critic loads of sin-gle-layer reticulated domes under horizontal sudden load?static load and earthquake action is discussed.Some conclusions worthy to note are achieved. |
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| Keywords: | dynamic stability single-layer reticulated dome horizontal sudden load earthquake load |
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