|Table of Contents|

Design parameters of track-bridge interaction on passenger dedicated line cable-stayed bridge(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2012年01期
Page:
31-37
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Design parameters of track-bridge interaction on passenger dedicated line cable-stayed bridge
Author(s):
YAN Bin1DAI Gong-lian1DONG Lin-yu2
1.School of Civil Engineering,Central South University,Changsha 410075,Hunan,China; 2.Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,Henan,China
Keywords:
bridge engineering cable-stayed bridge track-bridge interaction passenger dedicated line design parameter
PACS:
U443.312;U211
DOI:
-
Abstract:
Track-bridge interaction was simulated by using nonlinear spring,and the simulation method was proved based on the experimental results of related documents.Taking a U-shape section and single-tower cable-stayed bridge on Shanghai-Kunming Passenger Dedicated Line as an example,the spatial finite element model of tower-cable-rail-beam-pier was established by using large general-purpose finite element software ANSYS.The transfer law of rail longitudinal force on cable-stayed bridge was analyzed,and the impacts of design parameters on rail longitudinal force were studied,the design parameters included longitudinal resistance model,cable-stayed bridge structure system,temperature load,wind load and so on.Analysis result shows that rail longitudinal resistance can be simplified in accordance with ideal elastic-plastic model.Compared with floating system,rail longitudinal force reduces by about 30% through tower and beam consolidation.When calculating rail expansion force,load can be applied according to beam increasing-temperature 15 ℃ and cable increasing-temperature 40 ℃.In windy areas,rail longitudinal force on cable-stayed bridge caused by wind can be larger than 60 kN.

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Last Update: 2012-02-28