Support arm component of suspension curtain wall

The invention discloses a support arm component of a suspension curtain wall. The support arm component comprises a steel truss and a steel support arm, wherein stay cables are connected between a truss beam at the upper end of the steel truss and steel truss sheets at the lower end of the steel truss; the curtain wall is arranged on the outer sides of the stay cables; a matched structural columnis arranged on the steel truss; a plurality of steel plates are uniformly arranged in the structural column; the steel plates at one side of the structural column are connected with the steel supportarm through lug plates; in addition, the lug plates are connected with the steel truss sheets on the steel truss and movably connected with the steel support arm through pin shafts; spaces among the curtain walls which are in the vertical direction on the same side form grooves; pull rod fixing ends are arranged in the grooves; the left end and right end of the pull rod fixing end on the left sideare respectively connected