Static Performance of QEKF Comb Plate Expansion Device
The finite element analysis software Abaqus was used to establish the QEKF model of the comb plate expansion device,and the 550kN standard heavy truck was used to load the expansion joint in both vertical and horizontal directions.The stress response and vertical deformation rule were ana-lyzed when the vehicle passing through the expansion joint in the same lane direction or in the opposite lane direction under the condition of two lanes and three lanes,and the joint width of the expansion joint was analyzed with variable parameters.The results show that the most unfavorable condition of the expansion joint is that the vehicle is located above the expansion joint gap.The difference of stress and displacement under the action of two lanes and three lanes is small and the change trend is similar.Moreover,the stress and vertical displacement of the expansion joint increase with the increase of the width of the expansion joint.
comb plate expansion devicestatic performancefinite element analysisbi-directional load
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