| 引用本文: | 应明,郑一峰,王德军.吊杆张拉过程中拱肋稳定性分析[J].哈尔滨工业大学学报,2011,43(4):142.DOI:10.11918/j.issn.0367-6234.2011.04.028 |
| YING Ming,ZHENG Yi-feng,WANG De-jun.Stability analysis of arch rib in the process of drawing boom[J].Journal of Harbin Institute of Technology,2011,43(4):142.DOI:10.11918/j.issn.0367-6234.2011.04.028 |
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| 摘要: |
| 拱桥是一种主要承受压力的平面曲杆体系,实际工程中常常因材料、施工工序等原因受偏心压力.本文基于第二类稳定问题,根据实际工程中吊杆张拉方案进行线性和非线性稳定性分析,得到各工况的稳定安全系数.通过分析结果进行张拉方案比选.考虑双重非线性,稳定安全系数降低较大.因此,在施工过程的稳定性分析中应重点考虑非线性的影响. |
| 关键词: 拱桥施工控制 稳定性分析 非线性 |
| DOI：10.11918/j.issn.0367-6234.2011.04.028 |
| 分类号:U441 |
| 基金项目: |
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| Stability analysis of arch rib in the process of drawing boom |
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YING Ming1, ZHENG Yi-feng1, WANG De-jun2
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1.Civil Engineering Department,Jilin University,130026 Changchun,China;2.School of Transportation Science and Engineering,Harbin Institute of Technology,150090 Harbin,China
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| Abstract: |
| In practical,arch bridge,as a major stress plane curving pole system,would be eccentrically pressured by engineering materials,construction process and other reasons.Based on the nonlinear properties,the linear and nonlinear stability analysis,we obtained the various modes of the stability safety coefficient.From the analysis of results,we choose a tension scheme.Taking two nonlinear reasons into account,the stable safety coefficient would be reduced largely,so that the nonlinear effect must be considered in the stability analysis of construction. |
| Key words: arch bridge construction control stability analysis nonlinear |
