Concrete beam plate component reinforced by employing profiled bar beam enlarged section

The utility model discloses a concrete beam-board component reinforced by employing a steel beam enlarged section which belongs to a building structure component. The pulled side of a concrete beam (1) or a concrete board (7) is provided with at least one steel girder (2) along the pull direction; the steel girder (2) is fixedly connected with the concrete beam(1) or the concrete board(7) by more than two self-locking fasteners. The utility model can effectively improve the bending resistance of the component and has less relative increased deadweight of the steel girder, thereby being capable of extensively improving the carrying capacity of the beam and board components. The self-locking fasteners are firmly connected, have good self-locking performances, and high locking force, are not easy to fall off, and have good vibration resistance; the force transmission effect of a fastening piece is good and the bearing capacity is large. The reinforced component has a longer tenure of use, no special use requirements on environments, and can be suitable for the working condition environments of high temperature and high humidity. The utility model is suitable for carrying out reinforcing and alternation on original reinforced concrete beam and board components, and can also be suitable to be manufactured and combined into new beam and board components.