Method for constructing steel beam and floor slab at post-cast strip crossing position of all-steel super high-rise structure in advance

The invention relates to an all-steel super high-rise structure post-cast strip crossing steel beam and floor advanced construction method which specifically comprises the following steps that S1, construction simulation analysis is conducted according to engineering conditions, and the settlement amount of a tower in each stage is determined; s2, a temporary connecting plate and supporting corbels are arranged, the supporting corbels are arranged below the temporary connecting plate at intervals, the ends of web plates of the steel beams are used for being in butt joint with the temporary connecting plate, and lower flanges of the steel beams are erected on the supporting corbels; s3, when the tower steel column is installed, the elevation is pre-increased, the elevation of the podium building steel column is kept unchanged, the initial installation state of the tower steel column is oblique, and at the moment, the steel beam is obliquely arranged on the two supporting brackets with the height difference; th