Composite deck structure for bridge and bridge structure and construction method thereof

A construction method of a bridge structure 1, comprising the following steps:

• S1, placing the steel panel (12) at a bottom layer, and welding the longitudinal ribs (2) onto the steel panel (12);
• and prefabricating steel beam segments comprising the diaphragms (4) below a deck;
• S2, fixedly connecting the transverse ribs (3) to the longitudinal ribs (2), so as to form an orthogonal composite deck unit;
• S3, overturning the orthogonal composite deck unit, and correspondingly welding the transverse ribs (3) to the diaphragms (4) of the steel beam segments, so as to form main steel beam segments of an entire bridge;
• and
• S4, welding the studs (13) to the steel panel (12) after the main steel beam segments are transported to a bridge construction site and spliced into a full-length main beam segment by segment, arranging a reinforced steel mesh, and pouring ultra-high-performance concrete on site, so as to finally form a complete bridge structure;
• the bridge structure comprising a composite deck structure (6) and a main beam structure (5), wherein the main beam structure (5) is a steel box beam, a steel truss beam, or a steel plate beam;
• and the main beam structure (5) comprises diaphragms (4), the composite deck structure (6) is fixed onto the main beam structure (5), and transverse ribs (3) are spliced on the diaphragms (4) of the main beam structure (5);
• the composite deck structure for a bridge, comprising a top plate (1) and longitudinal ribs (2) fixed to a lower surface of the top plate (1), and further comprising transverse ribs (3) spliced on diaphragms (4) of a main beam structure (5) of the bridge, wherein the longitudinal ribs (2) are fixedly connected to the transverse ribs (3), and are connected to the diaphragms (4) by means of the transverse ribs (3), and the transverse ribs (3) are not provided with cutouts for accommodating the longitudinal ribs (2).