Building frame structure with both support and ventilation functions

A system for supporting and ventilating a building, comprising:

• a building frame structure with both support and ventilation functions, the building frame structure contains at least one starting column and a plurality of main beams, the main beams are connected with the starting column, and top of the starting column is connected to a fan;
• the starting column is a hollow cylinder, and there are four thin-walled hollow columns nested in the starting column, peripheral surfaces of the hollow columns are in close contact with each other and all inner walls of the starting column respectively, and hollow portions of each of the hollow columns are ventilation spaces, and a peripheral surface of the starting column is provided with a plurality of first air guide holes, and the peripheral surfaces of the hollow columns are each respectively provided with a second air guide hole corresponding to the first air guide holes;
• and
• the main beams are hollow structures, and a reinforcing wall is arranged inside the main beams, the reinforcing wall is connected with all inner walls of the main beam to define a plurality of ventilation ducts, the ventilation ducts correspond to the first air guide holes and the second air guide holes, so that a communication state is formed between the ventilation ducts, the first air guide holes and the second air guide holes, and bottom of the main beams is provided with a plurality of ventilation holes;
• wherein, air sent by the fan flows to the ventilation ducts of the main beams through the ventilation spaces, the second air guide holes, and the first air guide holes, and then sends the air to predetermined places in the building through the ventilation holes.