English：

In order to systematically analyze the change law of stress and displacement of the high⁃supportformwork and disk buckle support system of the large⁃span transfer beam under the action of load, relyingon Chongqing subway depot upper cover development project to establish a finite element model of thebuckle support system and field monitoring, analyzing the socket⁃type buckle support system through thecombination of the load in a variety of unfavorable loading action, the stress and deformation values of thesocket⁃type disk buckle support system under various unfavorable loads are analyzed, and the fieldmeasured values of the stress and displacement of the disk buckle support system are compared with thenumerical analysis results to verify the reliability of the finite element analysis and ensure the safety of thedisk buckle support system during the construction process. The research results show that: The finiteelement model of the disk buckle support system shows that, under combined loads, all vertical membersare subjected to compressive forces, with a maximum compressive stress of 80. 82MPa. Field monitoringdata shows that all measured values for the vertical members are negative ( negative indicatingcompression), with all members bearing compressive stress and a maximum measured value of90. 92MPa. The error is 12. 50%, which does not exceed the warning stress value for Q355 steel whenconsidering a safety factor k of 3. 0. According to the measured data, the average cumulative maximumvertical displacement of the disk buckle support system at the completion of the second concrete pour forthe transfer beam is -6. 91mm, located at the mid⁃span section of the transfer beam, which is within theallowable displacement range during construction. The calculated values of the maximum stress anddisplacement for the disk buckle support system are in good agreement with the field measurements,confirming that the strength and stiffness of the system meet the construction requirements.