The invention discloses an
assembly type concrete composite box beam and a construction method thereof. The
assembly type concrete composite box beam is provided with a
steel frame, a
reinforced concrete beam reinforcement cage and concrete. The
steel frame is divided into a left end
steel frame portion, a middle steel frame portion and a right end steel frame portion in the extending direction of the
assembly type concrete composite box beam. Both the left end steel frame portion and the right end steel frame portion are provided with support steel components and support additional
flange steel components. The middle steel frame portion is provided with a lower supporting steel component, upper front side supporting angle iron, upper rear side supporting angle iron, a plurality of front beam side hoop plates and a plurality of rear beam side hoop plates. The left end steel frame portion, the middle steel frame portion and the right end steel frame portion are provided with a plurality of beam face hoop plates and a plurality of inner rib plates. The
reinforced concrete beam reinforcement cage is arranged in the steel frame in a wrapped mode. The assembly type concrete composite box beam has the advantages of being simple in structure, convenient to manufacture and
mount, capable of shortening the construction period and reducing steel consumption, economical, high in
bearing capacity, good in stability, high in bending resistance and shearing resistance, high in rigidity and resistant to shock, wind,
corrosion and fire.