摘要
以德大铁路跨滨大高速公路特大桥主跨1-64.0 m系杆拱为例,对铁路系杆拱桥结构设计、计算参数选取进行详细介绍。采用有限元软件桥梁博士对结构进行纵向、横向计算分析;采用大型通用有限元软件ANSYS对结构进行模态及弹性屈曲分析。通过计算分析表明,结构应力、位移、自振频率及稳定系数均可满足规范相关规定。
This paper,taking a main span tied-arch of 64.0 m of a super major bridge on the Dezhou-Dajiawa Railway as an example,which spans over the Binzhou-Dagao Expressway,introduces in detail the structural design and calculation parameter selection of railway tied-arch bridge.The longitudinal and horizontal structure were calculated and analyzed by the Doctor Bridge-finite element software.The modality and elastic buckling of structure were analyzed by the large general-purpose finite element software ANSYS.The results of calculation and analysis showed that the stress,displacement,natural frequency and stability factor of the structure could meet the requirements of the relevant standards.
出处
《铁道标准设计》
北大核心
2012年第11期38-41,共4页
Railway Standard Design
关键词
铁路桥
钢管混凝土
系杆拱桥
静力计算
结构动力
弹性屈曲
railway bridges
concrete-filled steel tube
tied-arch bridge
static force calculation
structural dynamic force
elastic buckling
