Multifunctional composite suspension type datum beam structure

The invention relates to a device for testing the bearing capacity of a foundation pile, in particular to a multifunctional composite suspension type datum beam, and belongs to the technical field of civil engineering. The multifunctional composite suspension type datum beam structure comprises a datum beam, a datum beam supporting rod and a datum beam support; the datum beam support is mounted at the top of the datum beam supporting rod and comprises a support frame and a datum beam mounting frame; the support frame is of a frame structure, the top of the support frame is provided with a slideway allowing the datum beam mounting frame to slide, the length direction of the slideway is consistent with that of the datum beam, and the bottom of the slideway is fixedly mounted at the top of the datum beam supporting rod; the datum beam mounting frame is hoisted in the support frame through a roller structure of which the upper part is matched with the slideway, and a through hole allowing the datum beam to be ins