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独塔单索面斜拉桥主塔稳定简化分析
引用本文:郭卓明,李国平,袁万城.独塔单索面斜拉桥主塔稳定简化分析[J].同济大学学报(自然科学版),2000,28(2):215-218,235.
作者姓名:郭卓明  李国平  袁万城
作者单位:同济大学,桥梁工程系,上海,200092
摘    要:由于悬吊桥梁采用索塔支撑,其主塔往往须承受强大的轴向压力,因此其稳定是一个比较突出的问题,尤其是独塔单索面斜拉桥在空间受力和稳定性方面都相对比较薄弱,对其进行稳定性分析更显必要,在对其主塔受力的适当简化之后,分别对其弹性及弹塑性稳定进行了简化分析,在传统的弹塑性稳定内分析的基础上提出了一种独塔单索面斜拉桥主塔弹塑性稳定分析的简化方法,并以两座独塔单索面斜拉桥为背景做了算例,分析结果表明所采用的简化分析方法是可行的,。

关 键 词:独塔单索面斜拉桥  桥梁稳定  简化分析  弹性稳定性  弹塑性稳定性  主塔  轴向压力

Simplified Analysis of the Stability of the Single-column Pylon of the Single-cable-plane Cable-stayed Bridge
GUO Zhuo-ming,LI Guo-ping,YUAN Wan-cheng.Simplified Analysis of the Stability of the Single-column Pylon of the Single-cable-plane Cable-stayed Bridge[J].Journal of Tongji University(Natural Science),2000,28(2):215-218,235.
Authors:GUO Zhuo-ming  LI Guo-ping  YUAN Wan-cheng
Abstract:Stability of the pylon of the stayed-cable bridge, especially of the single-column pylon of the single-cable-plane cable-stayed Bridge, is the outstanding problem because of its large compress. In this paper, the simplified analysis methods of the elastic and plastic stability of the pylon are preferred respectively after its force condition is simplified. Two examples based real bridges are given finally. The result evinces that the methods in the paper are available.
Keywords:single-column pylon  single-cable-plane  cable-stayed bridge  bridge stability  simplified analysis  
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