Support connecting method of flexural member

The invention discloses a support connecting method for a flexural member. The method comprises the steps: obtaining the load of the flexural member; adjusting the connection state of the flexural member and the support so as to enable the flexural member and the support to be in a first connection state, and applying a preload to be borne by the flexural member in the first connection state; and adjusting at least one end of the flexural member and the support from a first connection state to a second connection state, removing the preload on the flexural member, and applying a load to be borne by the flexural member in the second connection state. By implementing the support connecting method of the flexural member, positive and negative bending moments at the two ends and the midspan of the flexural member can be effectively reduced and homogenized, so that the stress performance and economy of the flexural member in the structure are improved, and a direction is provided for the scheme feasibility of the