Prestressed profile steel combined joint construction method

The invention discloses a prestressed profile steel combined joint construction method which comprises the following steps: S1, accurately positioning a prestressed steel strand hole channel for accurately forming a hole in a tubular column, S2, additionally arranging a circular steel tube hole channel to mount a circular steel tube on the tubular column for replacing a corrugated tube, S3, arranging a positioning rib on the outer side of a prestressed steel column, and S4, arranging a prestressed steel strand hole channel on the outer side of the prestressed steel column, in the step S1, a precise positioning mode adopts a three-dimensional measurement technology, a specific numerical value is generated from a three-dimensional coordinate value of a pre-stressed steel strand pore channel by combining a BIM model, and meanwhile, the three-dimensional coordinate is imported by utilizing a digital technology; according to the construction method of the prestressed section steel combined joint, the problems that