For the splicing fittings of concrete under-rail components, it is necessary to solve the problem that the connection between the spike and the concrete and the rigidity of the concrete material are large and the insulation performance is poor. China commonly used gusset-type rigid splicing accessories and elastic-type elastic splicing accessories. Between the bottom of the rail and the lower part of the concrete rail, an elastic cushion layer is provided to improve the elasticity of the vertical direction of the line; the joint manner of the spike and the concrete rail lower part is sulfur anchored.
A general term for parts such as gussets, spring bars, and hooks for splicing accessories for rails and under-rail components. According to the material properties, it is divided into two types: rigid and elastic. The rail splicing fitting has a rigid splicing fitting with a rigid crimping member, and an elastic splicing fitting with a elastic crimping member. The elastic buckle can store the strain energy by means of pre-deformation, thereby adjusting the fluctuation state of the buckle pressure. Rigid crimping parts are not possible, so the anti-climbing performance of elastic splicing accessories is superior to rigid splicing fittings.
