| 钢筋混凝土高墩非线性稳定分析和模型试验 |
| |
| 引用本文： | 王钧利,贺拴海.钢筋混凝土高墩非线性稳定分析和模型试验[J].长安大学学报(自然科学版),2005,25(4):31-34. |
| |
| 作者姓名： | 王钧利 贺拴海 |
| |
| 作者单位： | 长安大学,桥梁与隧道陕西省重点实验室,陕西,西安,710064 |
| |
| 基金项目： | 国家西部交通建设科技项目（200231822329） |
| |
| 摘 要： | 以高墩大跨径曲线刚构桥为工程背景，应用非线性有限元分析与模型试验相结合的方法，分析了混凝土与主筋联合作用、箍筋对混凝土的约束作用，得出了非线性钢筋混凝土本构关系对高墩承载力的影响规律。结果表明，考虑主筋的作用，可以使钢筋混凝土高墩稳定荷载提高30％，箍筋对混凝土的约束作用可以使高墩极限承载力再提高13％。模型试验验证了该分析方法和结论的正确性。
|
| 关 键 词： | 桥梁工程 钢筋混凝土 高墩 承载力 非线性分析 模型试验 |
| 文章编号： | 1671-8879（2005）04-0031-04 |
| 收稿时间： | 2004-03-16 |
| 修稿时间： | 2004年3月16日 |
Nonlinear stability and model test of reinforce concrete for high piers |
| |
| WANG Jun-li,HE Shuan-hai.Nonlinear stability and model test of reinforce concrete for high piers[J].JOurnal of Chang’an University:Natural Science Edition,2005,25(4):31-34. |
| |
| Authors: | WANG Jun-li HE Shuan-hai |
| |
| Abstract: | To the long-span rigid frame curved bridge with high piers, the combination action of reinforce steel with concrete and the nonlinear influence of constitutive relation of confined concrete were analyzed with the finite element method and model test. The regularity of the strain, the stability and bearing capacity of high piers was revealed. The stability load is increased 30% when considering the action of combination reinforce steel with concrete. The ultimate bearing capacity is increased 13% when considering confined concrete. The key factors that affect the bearing capacity and the stability load are concrete and reinforcing steel bar. 4 tabs, 7 figs, 8 refs. |
| |
| Keywords: | bridge engineering reinforce concrete high pier load capacity nonlinear analysis model test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
