Optimum design method for embedded track bed structures of tramcars

Abstract

The invention relates to a design method for embedded track bed structures of tramcar. According to the method, experiments are carried out by adoption of a response surface method and regression analysis is carried out on structures on the basis of sufficiently investigating and surveying design information of track beds of tramcars and basically grasping design parameters of tramcar vehicles, tracks and beds, so that function relationships between steel rail vertical displacement, track board longitudinal bending moment, foundation bed top surface deformation and foundation bed top surface dynamic stress and various main design parameters, and evaluation and optimization are carried out on an embedded track bed structure design scheme according to the function relationships so as to finally obtain an economic and reasonable design scheme.

Description

technical field [0001] The invention relates to a method for optimally designing a tram embedded track subgrade structure, which belongs to the field of urban rail transit. Background technique [0002] Modern trams also belong to the category of urban rail transit, and have many similarities with subways and light rails, but at the same time have their own unique technical and operational characteristics. Modern tram vehicles have unique types, complex right-of-way forms, and the lower embedded track structure is quite different from traditional slab ballastless tracks (such as figure 1 As shown), the design standards of subway and light rail cannot be blindly applied in terms of design, construction and maintenance. However, due to the late start of research on modern trams in my country, there is currently no uniform standard for the design and construction of modern tram track subgrades, and most of them refer to foreign applications or other urban rail transit methods....

AI Technical Summary

Problems solved by technology

Modern tram vehicles have unique types, complex right-of-way forms, and the lower embedded track structure is quite different from traditional slab ballastless tracks (such as figure 1 shown), so design standards for subways and light rails cannot be blindly applied in terms of design, construction, maintenance, etc.

However, due to the late start of research on modern trams in my country, there is currently no unified standard for the design and construction of modern tram track subgrades, and more reference is made to foreign applications or other urban rail transit methods.

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