摘要
以浙赣线电气化提速改造工程浦阳江双线铁路连续梁桥为工程背景,分析了该桥动静载试验单线加载时偏载作用下箱梁的扭转效应.用ANSYS中的Beam4和Shell63单元分别建立了有限元模型,利用该模型计算了连续梁在偏载作用下的挠度和扭转角,计算结果与试验结果吻合,说明所提出的3种模型用于分析同类连续梁的扭转效应是可靠的。
With reference to the Puyangjiang double-tracks railway continuous beam bridge in the electrified speed-raising of Guangzhou-Ganzhou railways engineering,this paper analyzes the torsional response of box beam in the partial load of dynamic and static loads test.Finite element models of the continuous beam with Beam4 and Shell63 are constructed with ANSYS software.With those finite element models,deflection and torsion angle of the continuous beam under partial load are computed.Numerical results are compared with the test results,and good agreement is reached.It is shown that three kinds of model in this paper are reliable in the analysis of torsional response of continuous beam.
出处
《施工技术》
CAS
北大核心
2008年第S2期317-320,共4页
Construction Technology
关键词
动静载
有限元
偏载
扭转效应
箱梁
dynamic and static loads
finite element
partial load
torsional response
box beam
