Construction method using self-bearing structure as temporary support

The construction method using the self-bearing structure as the temporary support comprises the following steps that A, the size of a main beam is determined according to the overall cross beam heightand the cross beam wall thickness; b, a pouring support of the side wall of the main beam is built, and pouring is conducted on the side wall of the main beam; c, prestress or temporary prestress isapplied in the pouring process of the side wall of the main beam; d, after the side wall of the main beam is completed, a pouring support of the side wall of the main beam is dismantled, and horizontal concrete formworks are erected and located at the top and the bottom of the side wall of the main beam; compared with the prior art, the pouring section size of the main beam is changed; and on theother hand, a structure with high bearing capacity is formed by utilizing the structure of the cross beam and tensioning prestress so as to solve the problem of subsequent concrete pouring, so that the material consumption of t