BIM steel bar model device for building teaching

A BIM reinforcing steel bar model device for building teaching comprises an expansion type demonstration platform, a reinforcing steel bar structure model is arranged on the expansion type demonstration platform, the expansion type demonstration platform can move, decompose, expand and demonstrate the reinforcing steel bar structure model, a display screen is installed on the expansion type demonstration platform, a touch sensing module and a controller are arranged in the display screen, the touch sensing module is connected with the reinforcing steel bar structure model, and the controller is connected with the reinforcing steel bar structure model. The touch sensing module can sense whether the steel bar structure model is touched or not and transmit touch information to the controller, the controller is connected with the computer, and the computer is connected with the projection equipment. According to the device, the steel bar structure model corresponds to an image in the projection equipment, so that