铁道科学与工程学报2016，Vol.13Issue(3)：488-492,5.
格构柱高墩－连续板梁桥的动力稳定性研究
Study on the dynamic stability of high latticed colu mn pier -continuous plate girder bridge
摘要
Abstract
A temporary bridge was built to maintain the operation of existing railway line in the deep excavation project of the construction of NingBo South Station hub transformation,to realize the synchronous excavation of foundation pit under line with other region.A real -time dynamic safety monitoring system was established to en-sure the operation safety of this temporary railway bridge during excavation.Taking the temporary railway bridge as the object,the nonlinear dynamic response analysis procedures using point to point contact element combined with "displacement coupling method"was proposed based on ANSYS in this paper,and the perturbed nonlinear dynamic stability analysis procedures was programmed by means of the function of file management and restart a-nalysis in ANSYS.The dynamic stabilities of this temporary bridge under the most disadvantageous stage of deep excavation were analyzed,which provides evidence for the dynamic monitoring of the temporary bridge.关键词
格构柱高墩-连续板梁桥/动态特征值/ANSYSKey words
high latticed column pier -continuous plate girder bridge/dynamic eigenvalue/ANSYS分类
交通工程引用本文复制引用
鲁四平,李辉,伍彦斌..格构柱高墩－连续板梁桥的动力稳定性研究[J].铁道科学与工程学报,2016,13(3):488-492,5.基金项目
国家自然科学基金资助项目 （）
