This study proposed a transversely penetrated integrated track beam for low and medium speed maglev transit system to solve the problems that exist in the separated track beams,such as the problematic maintenance,large number of components,and ignorance of the stiffness of F-type rail.Finite element analysis and full-scale model test were con-ducted on the static performance of the steel-concrete joint in the integrated track beam.Parametric analysis was conduc-ted for the critical design parameters of the steel-concrete joint.The results indicate that:The steel-concrete joint is basi-cally in an elastic state under five times of design load with sufficient load-bearing capacity with a relatively high margin.The vertical load is transferred to the concrete girder through the pressure-bearing effect of the steel plate,with minor contribution of the studs to the vertical load transfer.The parametric study shows that vertical load transmission benefits from appropriately increasing the thickness of the steel components.The results of this study can provide reference for the design of the integrated track beams.
关键词
桥梁工程/中低速磁浮/模型试验/分离式轨道梁/梁轨一体轨道梁/钢-混结合部
Key words
bridge engineering/low and medium speed maglev system/model test/separated track beam/integrated track beam/steel-concrete joint
维普
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