Installation method of anti-seismic and fixed cable trough box bracket structure

The invention discloses a mounting method of an anti-seismic and fixed cable trough box bracket structure. The anti-seismic and fixed cable trough box bracket structure comprises a group of cable trough boxes which are arranged in rows and comprise corners, a group of horizontal cross arms supported at the bottoms of the cable trough boxes, and longitudinal cross arms connected to the extending ends of the horizontal cross arms, the fixed suspenders are connected to the two ends of the middle line horizontal cross arm at the joint of the group of horizontal cross arms; the anti-seismic supporting legs are connected to the peripheries of the fixed suspenders; the length direction of the horizontal cross arm at the center line is arranged along the center line of the corner of the cable trough box. Through the arrangement of the horizontal cross arm, the installation of the cable trough boxes in rows is facilitated; the horizontal cross arms are connected through the cross arm butt joint plates, so that the bea