Mounting and positioning method for square steel column of cup foundation

The invention provides a mounting and positioning method for a square steel column of a cup foundation, which comprises the following steps of mounting a positioning rule by a bed mortar method, adjusting the elevation of a to-be-mounted steel column by a bed mortar pad, determining a positioning point by the positioning rule, mounting a positioning plate on the to-be-mounted steel column, hoisting the to-be-mounted steel column with the positioning plate into the cup foundation, the perpendicularity of the to-be-mounted steel column is adjusted through the lifting mechanism; the adopted parts are simple in structure and convenient to assemble, bed mortar construction and size measurement of the positioning plate can be carried out after the cup opening foundation is completed, procedure connection is tighter, and the construction period is shortened; the construction procedure of a leveling layer is avoided, and materials are saved. 本发明提供了一种杯口基础方形钢柱的安装定位方法,通过座浆法安装定位尺，进而通过座浆垫调整待安装钢柱的标高，并通过定位尺确定定位点后，在待安装钢柱上安装定