Building assembly part based on BIM

The building assembly part based on the BIM comprises a fixing block, a connecting block is arranged on one side of the fixing block, a connecting groove is formed in the side, close to the connecting block, of the fixing block, a clamping block is fixedly connected to the side, close to the fixing block, of the connecting block, and the clamping block is connected with the connecting groove in a clamped mode. The top of the fixing block is in threaded connection with a fixing threaded column extending into the connecting groove, the fixing threaded column is in threaded connection with the middle of the clamping block, side supporting strips are rotationally connected to the bottoms of the two sides of the fixing block, sliding blocks are fixedly connected to one sides of the side supporting strips, and guide grooves matched with the sliding blocks are formed in the bottoms of the two sides of the connecting block. The ends, close to the sliding blocks, of the side supporting strips are in threaded connectio