Abstract:

The cablesuspended pipeline bridge between Wangyao heating station and Yangshan oil transportation station，Changqing Oilfield，is taken as example，ANSYS is applied to set up analytical model，timehistory analysis is used to carry out nonlinear seismic response study.Seismic wave is input in axial，transverse and vertical directions respectively to analyze the stress feature of the engineering structure under three types of conditions，the antiearthquake ability in different directions is obtained.The third and fourth classes sites seismic waves is considered as input，the conditions of different earthquake intensity，displacement and stress value of key structure locations while uniform input and traveling wave effect existing are all taken into consideration，and the timehistory curve is used to directly express the change of the parameters as time.The stress feature and law of cablesuspended pipeline bridge under the conditions of different earthquake intensity are probed，the weak points are figured out and corresponding measurement presented.

Key words: cablesuspended pipeline bridge, pipeline, seismic response, finite element, emulation