现代有轨电车单层板轨道结构参数研究

现代有轨电车作为一种新型公共交通方式近年来在国内外得到迅速发展与应用。我国现代有轨电车的兴建过程中,需要对国外技术进行消化吸收再创新,因此,非常有必要研究现代有轨电车轨道结构参数对轨道结构力学特性的影响。根据单层板式现代有轨电车轨道结构特点建立了弹性地基梁-板模型,利用有限元方法计算在不同道床板尺寸、扣件刚度、基础刚度情况下轨道结构的受力特性,为国内现代有轨电车轨道结构设计提供了一定理论依据。结果分析表明:现代有轨电车单层板结构的道床板长度宜小于8 m,扣件刚度宜取60~100 k N/mm,基础面刚度宜取76~130 MPa/m。

Study on Parameters of Modern Tram Single Plate Track Structure

The modern tram has been rapidly developed and applied as a new form of public transportation at home and abroad in recent years. It is crucial to conduct an in-depth study of the effect of the parameters of tram track structure on its mechanical properties when assimilating and re-innovating imported technologies of foreign modern tram. An elastic foundation beam-plate model is established based on the features of modern tram single plate track structure. The effect that different sizes of track bed,fastener stiffness,and foundation stiffness have on the mechanical characteristics of modern tram single plate track structure is calculated and analyzed,providing some theoretical references for the design of modern tram. The results show that the length of slab should be less than 8m,the fastener stiffness should be in the range of 60 to 100 k N / mm,and the foundation stiffness should be 76 to 130 MPa / m.