安庆铁路长江大桥基准动力有限元模型研究
发布时间：2018-11-17 09:05
【摘要】：文章探讨了大跨度斜拉桥建模中的几个关键问题,即初始平衡构型、斜拉索垂度效应、恒载几何非线性和正交异性桥面板简化,为安庆铁路长江大桥的基准动力有限元模型的建立提供指导;介绍了该桥的现场环境振动试验以及峰值法和随机子空间法的模态参数识别结果。安庆铁路长江大桥有限元模型动力特性的计算结果与实测结果吻合很好,表明建立的有限元模型可作为该桥的基准动力有限元模型。
[Abstract]:In this paper, several key problems in the modeling of long-span cable-stayed bridges are discussed, including initial equilibrium configuration, cable sag effect, geometric nonlinearity under dead load and simplification of orthotropic deck slab. It provides guidance for the establishment of the datum dynamic finite element model of Anqing Railway Yangtze River Bridge. The field vibration test of the bridge and the modal parameter identification results of peak value method and random subspace method are introduced. The calculated results of the finite element model of Anqing Railway Yangtze River Bridge are in good agreement with the measured results, which indicates that the established finite element model can be used as the reference dynamic finite element model of the bridge.
【作者单位】： 合肥工业大学土木与水利工程学院;
【基金】：国家自然科学基金资助项目(51508144) 中央高校基本科研业务费专项资金资助项目(JZ2015HGBZ0098;JZ2015HGQC0215)
【分类号】：U441.3
[Abstract]:In this paper, several key problems in the modeling of long-span cable-stayed bridges are discussed, including initial equilibrium configuration, cable sag effect, geometric nonlinearity under dead load and simplification of orthotropic deck slab. It provides guidance for the establishment of the datum dynamic finite element model of Anqing Railway Yangtze River Bridge. The field vibration test of the bridge and the modal parameter identification results of peak value method and random subspace method are introduced. The calculated results of the finite element model of Anqing Railway Yangtze River Bridge are in good agreement with the measured results, which indicates that the established finite element model can be used as the reference dynamic finite element model of the bridge.
【作者单位】： 合肥工业大学土木与水利工程学院;
【基金】：国家自然科学基金资助项目(51508144) 中央高校基本科研业务费专项资金资助项目(JZ2015HGBZ0098;JZ2015HGQC0215)
【分类号】：U441.3
【相似文献】
相关期刊论文 前10条
1 ;鄂黄长江大桥 获准开工建设[J];建筑机械;2000年02期
2 ;泸州铁路长江大桥即将开工[J];铁道建筑技术;2000年06期
3 卢景沛;我看长江的桥[J];上海城市管理职业技术学院学报;2002年02期
4 ;武汉将建第六座长江大桥[J];城市道桥与防洪;2003年02期
5 程式欣;黄石长江大桥开始改扩建[J];中外公路;2003年01期
6 ;泸州泰安长江大桥动工兴建[J];城市道桥与防洪;2004年01期
7 ;荆州、鄂黄两座长江大桥通过验收[J];中外公路;2005年04期
8 ;巫山长江大桥竣工通车[J];公路;2005年02期
9 熊金超;;南京长江大桥存废争议[J];w挛胖芸，
本文编号：2337236
本文链接：https://www.wllwen.com/kejilunwen/daoluqiaoliang/2337236.html
