Precast concrete member with prefabricated plate and fixing channels
View Patent ↗The present invention relates to a precast concrete member using a PC member, which comprises a prefabricated plate and fixing channels, and is used as a linear member for a column which is an axial force member, as a planar member for a wall which is an axial force member, or as a linear member for a beam or a girder which is a flexural member. A preferred embodiment of the present invention provides a premade precast concrete member having a PC body formed at a predetermined length and multiple steel reinforcements embedded within the PC body along the longitudinal direction, the precast concrete member comprising: a plate assembly in which a pair of board-like plates having a pair of coupling holes formed to be penetrated at a regular interval are formed so as to be spaced apart from each other and to face each other, or two pairs of board-like plates are spaced apart from each other so as to face each other, with one end of each thereof being embedded into one or both longitudinal ends of the PC body, and the other ends thereof protruding, wherein the plate assembly comprises a connecting member of which a part embedded into the PC body of the plate is welded to one side of the steel reinforcement, and both ends are respectively bolt-coupled to the coupling holes of a pair of plates so as to connect a part embedded into the PC body of a pair of facing plates; and fixing channels which comprise a U-shaped channel having an opening formed on the top thereof and multiple anchor bodies coupled to the rear surface of the U-shaped channel, the opening of the U-shaped channel comprising a rib which is formed to be bent inwardly, wherein at least two rows of fixing channels are embedded at regular intervals into one side surface of the width direction of the PC body or into at least one pair of corresponding surfaces of the width direction of the PC body.
1. A precast concrete (PC) member having assemblable plates and fixing channels comprising:
a PC body having a length;
a plurality of rebars embedded in the PC body along a length direction of the PC body;
a plate assembly comprising:
one or more pairs of the assemblable plates spaced apart from one another to face each other, each comprising a pair of coupling holes at an interval, and configured to have a structure in which ends of the assemblable plates are embedded in and other ends of the assemblable plates protrude from one or more ends of the PC body and that parts of the assemblable plates embedded in the PC body are welded to ends of the rebars being in contact with and extending in parallel with the embedded assemblable plates; and
connection members configured to have a structure in which two ends of each connection member are coupled to the coupling holes of a pair of the assemblable plates facing each other, using bolts to interconnect the embedded parts of the assemblable plates facing each other; and
two or more of the fixing channels embedded at an interval in a side surface or two or more corresponding side surfaces of the PC body, and the two or more fixing channels comprising:
a U-shaped channel having an opening in a top surface of the U-shaped channel; and
a plurality of anchor structures coupled to a rear surface of the U-shaped channel,
wherein a plurality of lips are bent inward from the opening of the U-shaped channel.
2. The PC member according to claim 1 , wherein toothed gear parts are provided on inner surfaces of the lips of the fixing channel.
3. The PC member according to claim 1 , wherein each of the anchor structures of the fixing channel comprises:
a stem welded to the rear surface of the U-shaped channel and configured as a steel plate; and
an anchor head welded to an outer end of the stem and configured as a steel plate.
4. The PC member according to claim 1 , wherein reinforcing angles are vertically coupled to inner corners of the connection members crossing each other in a cross section of the plate assembly.
5. The PC member according to claim 1 , wherein a plurality of bent rebars are partially embedded in and partially and perpendicularly protrude from a side surface of the PC body.
6. The PC member according to claim 1 , wherein a girder connection part perpendicularly protruding from the PC body by a length is integrally provided on a side surface of the PC body, and
wherein the plate assembly is configured to have a structure in which an end of the plate assembly is embedded in an end of the girder connection part.
7. The PC member according to claim 1 , wherein the plate assembly is provided at each of two sides of each of two ends of the PC body,
wherein a plurality of bent rebars are partially embedded in and partially and perpendicularly protrude from parts between the plate assemblies of the two sides, and
wherein two or more fixing channels are embedded at a interval in each of side surfaces of the PC body.