Matching optimization method for high-speed railway bridge telescopic sleeper lifting device and track structure

The invention provides a matching optimization method for a high-speed railway bridge telescopic sleeper lifting device and a track structure, which belongs to the technical field of high-speed railway track design construction, and comprises the following steps of: determining the number of sliding steel sleepers, the sectional dimensions of fixed steel sleepers, the sliding steel sleepers and steel longitudinal beams, the rigidity parameters of the sliding steel sleepers and the rigidity parameters of the fixed steel sleepers; based on a finite element method, constructing an integrated space mechanical model of a vehicle-track structure-bridge beam seam-telescopic sleeper lifting device, calculating and analyzing the dynamic response and the structural strength stability of the telescopic sleeper lifting device, and obtaining a matching scheme. According to the invention, the reasonable structural form of the beam end telescopic structure is determined; whether all parameters of thetelescopic sleeper lifti