Orthogonally composite prefabricated structural slabs

A composite deck panel for use in bridges or other structures supported by two or more girders and adapted to transfer load in a composite manner to structural members and to said girders, comprising in combination:

• a rectangular frame comprised of channel members integrally attached to one another;
• structural members longitudinally positioned in said rectangular frame and integrally attached thereto;
• reinforcing mesh securely attached to said rectangular frame and to said structural members with sufficient stiffness to act with a concrete topping as an integral structural element;
• the concrete topping encasing said reinforcing mesh and partially encasing said structural members to create a composite structure with said rectangular frame, a portion of said structural members and rectangular frame extend outwardly from said concrete topping;
• said structural members and said channel members having a locking hole extending through said structural members and said channel members;
• a locking loop integrally attached to the upper portion of said girders and extending around said locking hole, said locking loop being comprised of, in combination:
• threaded studs integrally attached to the upper flange portion of said girder;
• a locking plate extending between said threaded studs;
• locking nuts in threaded engagement with said threaded studs and positioned on either side of said locking plate;
• a rigid locking rod extending through said locking hole and engaging the said locking loop secured to said girders;
• a structural element within said deck panel comprised of said structural members, rectangular frame and locking rod completely encased in grout whereby said deck panel acts as a composite structural element with said girders.