Reduce steel truss structure that girder steel warp

The utility model provides a reduce steel truss structure that girder steel warp, includes that girder steel (1), concrete column (2), terminal end plate (3), back anchor bolt (4), back add end plate (5), stiffener, lower chord (8) and web member, the web member is including erecting web member (10) and diagonal bracing (9), the stiffener includes first stiffener (6) and second stiffener (7). The girder steel both ends are fixed on the concrete column of both ends through the installation of terminal end plate, and the perpendicular web both sides symmetrical arrangement welding of girder steel has the second stiffener, terminal end plate is fixed on the concrete column through back anchor bolt, first stiffener is installed in the angle of intersection department of concrete column wall with the girder steel, and first stiffener adds the end plate with girder steel, terminal end plate and back and is connected, the diagonal bracing difference welded fastening at lower chord both ends is on first stiffener, pe