| 钢管混凝土提篮拱空间稳定性随机静力分析 |
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| 引用本文： | 李生勇,陈宝春.钢管混凝土提篮拱空间稳定性随机静力分析[J].长沙交通学院学报,2008,24(4):1-5. |
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| 作者姓名： | 李生勇 陈宝春 |
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| 作者单位： | 福州大学,土木工程学院,福建,福州350108 |
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| 基金项目： | 福州大学博士后基金项目
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| 摘 要： | 为了解宽跨比很小的提篮拱拱桥的空间稳定性能，采用响应面法，进行了屈曲稳定特征值的随机静力分析．以宽跨比为1／23．8的铜瓦门大桥为分析对象，通过建立响应面方程，研究了结构的材料性能和几何尺寸的不确定性对该桥空间稳定性的影响．结果表明，结构参数变异不影响该桥一阶空间失稳模态，结构的材料性能和几何尺寸的不确定性对该桥的空间分支屈曲稳定有着不同程度的影响．
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| 关 键 词： | 钢管混凝土 提篮拱 空间稳定性 分支屈曲 随机静力分析 响应面法 铜瓦门大桥 |
Stochastic static analysis on spatial stability of CFST tilt-basket arch bridge |
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| LI Sheng-yong,CHEN Bao-chun.Stochastic static analysis on spatial stability of CFST tilt-basket arch bridge[J].Journal of Changsha Communications University,2008,24(4):1-5. |
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| Authors: | LI Sheng-yong CHEN Bao-chun |
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| Institution: | LI Sheng-yong,CHEN Bao-chun(College of Civil Engineering,Fuzhou University,Fuzhou 350108,China) |
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| Abstract: | In order to understand the spatial stability behaviors of tilt-basket arch bridge with a considerable small width-to-span ratio,response surface method(RSM) is applied in stochastic static analysis on spatial buckling problem in such a type bridge.Taking Tongwamen Bridge as a case study,which has a width-to-span ratio only of 1/23.8,a response surface equation is established,the uncertainties of structural material properties and geometrical dimensions are taken into account in studying its spatial buckling... |
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| Keywords: | concrete filled steel tubular tilt-basket arch spatial stability buckling stochastic static analysis response surface method Tongwamen Bridge |
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