Design scheme of bridge-inspection vehicle applies for new high-speed railway bridge

ZHANG Xiao-kui1， LIU Wei1， HAN Guo-liang2， LI Juan-juan1
（1. School of Mechanical， Electronic and Control Engineering， Beijing Jiaotong University， Beijing 100044，China；
2. Beijing WOWJOINT Machinery Co.， Beijing 101100， China）

Abstract： In order to solve the problems of new high-speed railway bridge cancel human pavement，the skylight time limit and other characteristics that traditional bridge test equipment maintenance can't reach the detection requirements，a mechanical design plan of new high-speed railway bridge-detection vehicle was investigated. This bridge-detection vehicle uses the structure of fixed gate-type girder，its guiding girder and drive girder walk alternately. This vehicle can detect the onderkant of the bridge and bridge piers with image acquisition technology and can pass the bridge pier automatically without affect the normal train traffic. And its 3D modeling and simulation animation was completed by Solidworks，the virtual prototype was tested. The experimental results show that this design scheme is feasible. This plan will provide reference to more testing and maintenance of railway bridge equipment research and development.
Key words： high-speed railway；bridge-inspection vehicle；design scheme