Integral jacking construction method for double-curved-surface large-span steel truss

The invention relates to an integral jacking construction method for a double-curved-surface large-span steel truss, which comprises the following steps of: (1) taking a simulation analysis theory as a basis, combining the integral characteristics of a double-layer upright quadrangular pyramid steel truss, utilizing a supporting structure distribution form to provide a truss structure lifting point arrangement scheme, carrying out feasibility analysis on the scheme, determining an integral truss lifting scheme, and constructing a double-layer upright quadrangular pyramid steel truss lifting point arrangement scheme; a jacking point location is determined according to a model analysis calculation result; (2) jacking equipment is prepared; (3) surveying and setting out; (4) assembling on the ground; (5) jacking the net rack; and (6) the jacking equipment is dismantled, and installation is completed. According to the construction method, aloft work can be avoided, the engineering construction speed of the steel