Multifunctional rigid frame experiment model and experiment method

The invention provides a multifunctional rigid frame experiment model and an experiment method. The device comprises a rigid frame structure, a loading device, a supporting and restraining device and a measuring device. The rigid frame structure is composed of different combinations of rods and joints in connection. The loading device comprises a worm and gear loading device, an electric servo loading device and a rotation angle applying device to load the frame structure. The supporting and restraining device comprises the constraint support and the reaction frame of the rigid frame structure. The constraint support of the rigid frame structure comprises a fixed hinge seat, a movable hinge seat and a fixed bearing capable of applying a rotation angle. The measuring device comprises a force sensor, a strain gauge, a rotation angle sensor and a dial indicator. The device integrates the structural mechanics experiment model, the loading device and the measuring device, and can assemble different experiment mode