薄壁高墩大跨度连续刚构弯桥的空间稳定分析

薄壁高墩连续刚构桥由于自身的力学特点.其稳定问题日显突出,目前对大跨径直线连续刚构桥的稳定性分析较多,但对高墩大跨连续刚构弯桥的稳定性没有进行系统研究。本文以弄林特大桥工程实例,利用空间有限元法对其进行稳定分析,通过分析比较,对高墩连续刚构桥的稳定性问题的理论方法进行了分析和探讨,提出了对此类桥型稳定分析的方法和建议。

Spatial stability analysis of Thin-wall high piers large span continuous rigid frame curved bridge

Because of their mechanical characteristics of Spatial stability analysis of Thin-wall high piers large span continuous rigid frame curved bridge,The stability problem is more prominent,At present the stability analysis of long-span linear continuous rigid frame bridge is more,But there is no systematic study in stability of long span continuous rigid frame curved bridge pier.Based on the engineering example of the NongLing large bridge,Use of the space finite element method （fern） for stability analysis,Through the analysis and comparison,The stability of high pier continuous rigid frame bridge theory methods are analyzed and discussed, Put forward On the bridge stability analysis method and the suggestiono