KR100675400B1 - Compound frp reinforced panel and method for constructing the bottom slab using the panel - Google Patents

Abstract

A composite fiber reinforced plastic panel and a floor slab installation method thereby are provided to prevent corrosion, to increase tensile strength and to cut down construction cost by installing a floor slab in a bridge or a building with the composite fiber reinforced plastic panel without steel reinforcing bars. Plural steel beams are connected successively and horizontally on an upper flange of a bridge girder(12) installed in a pier of a bridge(10), and lower reinforcing plates are installed successively in upper and lower parts. The lower reinforcing plate is formed by impregnating lamina in resin and integrally hardening. A fiber reinforced plastic grid is installed on the lower reinforcing plate, and integrally formed by connecting protruded parts(43) of vertical and horizontal plates. Concrete is poured and cured on the fiber reinforced plastic grid according to height of an upper bridge floor slab(13), and the upper bridge floor slab is installed by temporarily installing a fiber reinforced plastic panel(20).

Description

Compound FRP reinforced panel and method for constructing the bottom slab using the panel}

        1 is a view showing a composite FRP (FRP: fiber reinforced plastic) reinforcing panel of the present invention.

        Figure 2 is a view showing in detail the reinforcement bottom plate of the present invention.

        Figure 3 (a) (b) is a view showing an embodiment of the FRP (fiber reinforced plastic) grid of the present invention.

        Figure 4 is a view showing an embodiment in which the upper floor slab bridge is installed by installing a composite FRP (FRP: fiber reinforced plastic) reinforcement panel of the present invention on the bridge girder.

        <Explanation of symbols for the main parts of the drawings>

         10 bridge 11 bridge

         12: bridge girder 13: bridge upper floor slab

         20: composite FRP (fiber reinforced plastic) reinforcement panel

         21: concrete

         30: reinforcement bottom plate 31: lamina

         32: steel

         40: FRP (Fiber Reinforced Plastics) Grid

         41: vertical plate

         42: horizontal plate 43: protrusion

         44: groove 45: projection

        The present invention installs a plurality of reinforcement bottom plate of a certain standard in the longitudinal direction on the bridge girder or the beam girder installed on the bridge and the bridge of the bridge, and installed a plurality of reinforcement bottom plate, the FRP (FRP: fiber reinforced plastic) grid And install the composite concrete or polymer concrete according to the height of the design floor slab on the installed FRP (fiber reinforced plastic) grid, and then composite FRP (fiber reinforced plastic) reinforced panel In the case of a bridge, it is a method of installing a floor slab on an upper floor of a bridge or a floor slab in a building.

        The composite FRP (Fiber Reinforced Plastic) reinforcement panel is a glass fiber or carbon fiber or aramid fiber, such as lamina (Lamina) impregnated with a resin, such as vinyl ester or polyester or phenolic resin, which is highly resistant to concrete. ) Lay a number of layers, and install a plurality of steel laterally on it, and then install the lamina on the steel to form a uniform gap on the reinforcement lower plate formed to integrate the upper and lower lamina and the steel installed in the middle. FRP (fiber-reinforced plastics) grids installed with horizontal plates and vertical plates made of FRP (fiber-reinforced plastics) to be orthogonal to each other, are installed adjacent to the ends of the horizontal and vertical plates. Grooves and protrusions are intersected for connection with the transverse and vertical plates of another FRP grid. It is made by pouring ordinary concrete or polymer concrete on it.

        In order to install the floor slab of the bridge or building using the composite FRP (fiber reinforced plastic) reinforcement panel,

        For example, in the case of a bridge, a plurality of reinforcement lower plates of a certain size are installed in a row on the upper flange of a bridge girder installed in bridges and bridges or beams installed in a building, and a plurality of reinforcement lower plates are installed in a row. Reinforcing plastic) grids are installed in succession, and then the composite FRP (FRP: fiber reinforced plastic) is formed by pouring general concrete or polymer concrete according to the height of the design floor slab on the installed FRP (fiber reinforced plastic) grid. This is a method of installing reinforcement panels and installing floor top slabs for bridges or floor slabs for buildings.

        The object of the present invention is the reinforced concrete structure of the upper slab of the bridge and the floor slab of the building, the external load is applied, the compressive side resists the concrete on the basis of the neutral axis, and the reinforcement of the reinforced side buried in the concrete to resist the load As the reinforcing steel buried in the concrete on the tension side is corroded for various reasons, the service life of the reinforced concrete is shortened.

        In order to solve these problems, the floor slab of bridges and buildings is installed by using composite fiber reinforced plastic (FRP) reinforcement panel with excellent strength, rigidity and corrosion resistance. To provide a method.

        In the prior art, the formwork is installed in order to install concrete floor slabs, and after reinforcing the reinforcing bars, the concrete is laid, and the preliminary preparation process for installing the slabs, reinforcing bar and concrete casting, and the curing thereof are required. Due to the limitation of the timing, time, etc. in consideration of the effect on the concrete by the external temperature during concrete placement and curing, and the negative impact on the surrounding environment by the noise during the concrete placement by the large vehicles and the waste spilled during the casting There have been problems of excessive construction costs due to complaints and extension of construction period.

        The present invention is proposed to improve the above problems, Lamina (Lamina) in a plurality of layers on the upper flange of the bridge girder or the beam of the building up and down, between the steel installed in between FRP (fiber-reinforced plastics) grid with orthogonal mounting of horizontal and vertical plates made of FRP (fiber-reinforced plastics) is installed on it, and composite FRP with concrete poured on it. (FRP: Fiber Reinforced Plastic) Reinforcement panels are used to install floor slabs of bridges and buildings.They have significantly higher strength / density and rigidity / rigidity than concrete or steel. FRP (fiber reinforced plastic) using FRP (fiber reinforced plastic) as the main material Will be utilizing steel panels with a material of the slab.

        Therefore, the composite mechanically beneficial composite material of the present invention using the FRP (fiber-reinforced plastic) composite composite material to manufacture and install the composite fiber reinforced (FRP: fiber-reinforced plastic) reinforcement panel can be used semi-permanently, the existing reinforced concrete FRP (fiber reinforced plastic) reinforcement panel of the present invention to fully exhibit the tensile strength by using the FRP (fiber reinforced plastic) grid embedded in the tension side area as a substitute for buried reinforcement The present invention provides a method for installing floor slabs of bridges and buildings.

        The present invention is installed a plurality of reinforcement lower plate (30) of a certain standard in the longitudinal direction of the bridge girder (12) installed in the bridge and the bridge of the bridge (10) or the beam installed in the building, and installed a plurality of reinforcement lower plate (30). ) FRP (fiber reinforced plastic) grid (40) successively installed on the above, and then on the installed FRP (fiber reinforced plastic) grid (40) according to the height of the floor slab of the design according to the general concrete or polymer Placing concrete 21 to install composite FRP (Fiber Reinforced Plastic) reinforcement panel (20) to install bridge top floor slab (13) or bridge slab if building It is characterized by.

The composite FRP (fiber reinforced plastic) reinforcement panel 20 is a lamination impregnated with a resin such as vinyl ester or polyester or phenolic resin having a lot of resistance to concrete such as glass fiber or carbon fiber or arimid fiber Lamina 31 is laid in a plurality of layers, and a plurality of steels 32 are laterally installed on it, and then the laminas 31 are installed on the steels 32, and the upper and lower laminas are laid. Horizontal plate 41 and vertical plate made of FRP (fiber reinforced plastic) so as to cross at regular intervals on the reinforcement lower plate 30 formed so that the 31 and the steel material 32 installed in the middle are integrated. Another FRP fiber (FRP: fiber reinforcement plastic) grid 40 is installed, but is installed adjacent to the end of the horizontal plate 41 and the vertical plate 42 (FRP: fiber) Reinforcement plastic) Horizontal plate 41 and vertical plate (of grid 40) The grooves 44 and the projections 45 are respectively formed to connect with the 42, and then the concrete 21, which is general concrete or polymer concrete, is poured thereon.

        Hereinafter, the configuration and operation of the present invention will be described in detail by the accompanying drawings.

        1 is a view showing a composite FRP (fiber reinforced plastic) reinforcement panel of the present invention, a vinyl ester or polyester or phenolic resin having a high resistance to concrete, such as glass fiber or carbon fiber or arimid fiber Lamina (31) impregnated with resin is laid in a plurality of layers, a plurality of steel (32) laterally successively installed on it, and then the lamina (31) on the steel (32) Is installed in a plurality of layers with the FRP (fiber reinforced plastic) to be orthogonal at regular intervals on the reinforcing lower plate 30 formed so that the upper and lower lamina 31 and the steel 32 installed in the middle are integrated. FRP (fiber-reinforced plastics) grid 40 having the manufactured horizontal plate 41 and the vertical plate 42 is installed, but adjacent the ends of the horizontal plate 41 and the vertical plate 42. Another FRP installed (FRP: Fiber In order to connect the horizontal plate 41 and the vertical plate 42 of the strong plastic grid 40, as shown in FIG. 3 to be described later to form the grooves 44 and the projections 45, respectively, and then on the general The concrete 31, which is concrete or polymer concrete, is poured.

        The FRP (fiber reinforced plastic) grid 40 is made of FRP (fiber reinforced plastic) as a main material, but may be used as a material of a grid to orthogonally cross a plastic plate or a steel sheet or a wire mesh.

        In addition, the FRP (FRP: fiber reinforced plastic) grid 40 is the center of the composite FRP (FRP: fiber reinforced plastic) reinforcement panel 20 to play a role of reinforcing bar installed on the tension side of the existing reinforced concrete It is installed in the lower portion of the shaft to correspond to the tensile force generated by the load applied to the reinforcement panel 20.

        The steel installed for the installation of the reinforcing lower plate 30 may be made of one of the triangle, corrugated, circular, and one of the steel tubes in addition to the rectangular shape applied in the present invention, as well as the FRP (FRP) : Pipe made of fiber reinforced plastic can be used.

        Although it is also revealed that it can be used as a material forming the skeleton of the reinforcing lower plate 30 by using a variety of materials that are not mentioned here.

        Figure 2 is a view showing in detail the reinforcement bottom plate of the present invention, as described in Figure 1, such as glass fiber or carbon fiber or arimid fiber, such as vinyl esters or polyesters or phenolic resins are highly resistant to concrete Lamina (31) impregnated with resin is laid, and a plurality of steels (32) are laterally arranged on the steel material (32), and then the laminas (31) on the steel (32) in a plurality of layers. It is installed so that the upper and lower lamina 31 and the steel 32 provided in the middle are integrated.

        The steel 32 is installed in a row in a row, and the lamina 31 impregnated in resin integrally in the upper and lower parts by laying a plurality of layers to harden integrally, to form a kind of concrete At the same time, the role of the structure that can provide a strength that can adequately resist the tensile force generated from the lower by the load applied to the composite FRP (fiber reinforced plastic) reinforcement panel 20 manufactured later. It is possible to do it at the same time.

        Laminated to be installed on top and bottom of the steel 32 separately in order to interconnect the steel 32 to be installed in succession, or to more tightly integrate with the lamina 31 installed on the top and bottom of the steel 32 is connected to each other A device capable of connecting the b 31 may be installed to be integrated, and then the resin impregnated in the lamina 31 may be cured to be more reliably integrated.

        Figure 3 (a) (b) is a view showing an embodiment of the FRP (fiber reinforced plastic) grid of the present invention, the concrete being poured while being installed as a substitute for the reinforcing lower plate 30 described in FIG. It is to have a function to maintain the form.

        The main material of the grid 40 is to produce the vertical plate 42 and the horizontal plate 41 using FRP (Fiber Reinforced Plastic), but also a rigid plastic plate or steel sheet or wire mesh is optional. Can also be used as

        FIG. (A) is a mesh type FRP (FRP) fiber 40 formed by orthogonalizing the vertical plate 42 and the horizontal plate 41. The horizontal 41 and the vertical plate 42 are shown in FIG. ) End of each of the composite FRP (FRP) installed adjacent to each other in the upper girder of the bridge girder 12 and the beam of the building in the future by installing a protrusion 43 so as to protrude by a certain length on the reinforcement bottom plate 30 : When the fiber reinforced plastic reinforcement panel 20 is interconnected, the protrusions 43 are overlapped with each other, or holes are formed in the body of the protrusions 43, respectively, and then a pin is inserted into the hole to be adjacent to each other. To each of the installed protrusions 43 are connected to each other,

        Fig. (B) is also provided with a protrusion to perform the same function as in Fig. (A), each composite F installed in the protrusion 43 adjacent to the upper flange of the bridge girder 12 and the beam of the building. A groove 44 is provided on one protrusion 43 on the protrusion 43 of the FRP (fiber reinforced plastic) grid 40 protruding from the reinforcement panel 20. The projections 43 of the FRP (fiber reinforced plastic) grid 40 of the reinforcement panel 30 installed therein are provided with projections 45 to couple the grooves 44 and the projections 45 to each other. It is intended to be connected integrally.

        4 is a view showing an embodiment in which the upper floor slab of the bridge is installed by installing a composite FRP reinforcement panel of the present invention on a bridge girder. It is also noted that it can be applied where the slabs of buildings or all concrete structures are installed.

        This figure shows that the composite FRP (fiber reinforced plastic) reinforcement panel 20 described above to be installed to the upper flange of the bridge girder 12, respectively, to install the upper floor slab bridge.

        The concrete method of installing the upper floor slab 13 is as follows.

       (a) Fibers impregnated in resin on the upper and lower parts of the bridge 10, and a plurality of steel materials 32 of a predetermined standard in a row on the upper flange of the bridge girder 12 installed on the bridge 11, and laterally installed. The reinforcement lower plate 30 which hardened the phosphorus lamina 31 integrally and continuously is installed longitudinally and horizontally,

       (b) installing a FRP (fiber reinforced plastic) grid 40 on the reinforcing lower plate 30, but interconnecting the projections 43 of the horizontal 41 and the vertical plate 42 of the grid 40 with each other. To be integrated so that

       (c) Compounding the concrete 21 according to the height of the upper bridge slab 13 of the design on the installed FRP (FRP: fiber reinforced plastic) grid (40) composite FRP (FRP: fiber reinforced plastic) By installing the reinforcement panel 20, the bridge upper floor slab 13 is installed to be used on the road.

        In the case of the building in the above it is to install the floor slab while performing the process (a) to (c) on the upper flange of the beam.

        Composite FRP (FRP: fiber reinforced plastic) by the field assembly to install the grid 40 on the reinforcement lower plate 30 on the bridge girder 12 or the upper flange of the beam as described above and cast concrete 21 In addition to the method of installing the floor slab by the installation of the reinforcement panel (20) girders prefab composite FRP (FRP: fiber reinforced plastic) reinforcement panel (20) of the above-mentioned unit specifications made in advance in the factory, etc. girder And the horizontal 41 of the grid 40 of the composite FRP (fiber reinforced plastic) reinforcing panel 20 and the protrusions 43 of the vertical plate 42 are interconnected and installed on the upper flange of the beam. In the interconnected part, floor slabs can be installed simply by placing non-shrink mortar or polymer concrete to connect with existing concrete layers.

        The floor slab installed by using the composite FRP (FRP: fiber reinforced plastic) reinforcement panel of the present invention does not use reinforcing bar, excellent corrosion resistance and a sufficiently high tensile strength breakthrough breakthrough It can be used as bridge deck and building floor slab, and it is economical and efficient construction method that can reduce construction cost due to short air.

Claims (9)

        Lamina (impregnated) resin is impregnated into the fiber in a plurality of layers, and a plurality of steels are laterally installed on it, and the reinforcement is formed so as to be integrated by installing a lamina formed of the plurality of layers thereon. FRP (Fiber Reinforced Plastics) Reinforcement Panel (FRP: Fiber Reinforced Plastics) is installed on the bottom plate, and concrete is cast on it.         The method of claim 1,         The FRP (Fiber Reinforced Plastics) grid is provided with a horizontal plate and a vertical plate made of one of FRP (FRP: Fiber Reinforced Plastics) or a pre-stick plate or steel sheet or wire mesh so as to be orthogonal at regular intervals. As one, the end of the horizontal plate and the vertical plate is provided with a protrusion of a constant length for connection with the horizontal plate and the vertical plate of another FRP (fiber reinforced plastic) grid is installed adjacent to, or the body of the protrusion A composite FRP reinforcing panel characterized in that one of the holes is formed in the center, or the groove and the projection are formed in the protrusions, respectively.         The method of claim 1,         The steel is composed of a steel pipe consisting of one of a rectangular, triangular, corrugated, circular, and formulation, and composite FRP (FRP: fiber reinforced plastic), which is characterized in that it can be used in addition to the steel pipe (FRP: fiber reinforced plastic). Reinforcement panel.         The method of claim 1,         The fiber is one of glass fiber, carbon fiber or arimid fiber, and the resin is one of vinyl ester or polyester or phenol resin which is highly resistant to concrete, and the concrete is characterized in that the concrete is general concrete or polymer concrete. Composite FRP (Fiber Reinforced Plastic) Reinforcement Panel.         In the method of installing a bridge upper floor slab or a floor slab of a building, which is a bridge upper structure of a bridge,         (a) A plurality of steels of a certain standard are installed in a row on the bridge girder or the upper flange of the beam of the structure installed on the bridges and bridges of bridges, and the lamina, the fiber impregnated with resin, is laid in multiple layers on the upper and lower sides. To install a plurality of reinforcing bottom plate longitudinally and horizontally formed to be integral with the steel,         (b) install an FRP (Fiber Reinforcement Plastic) grid on the reinforcement lower plate, and install the interconnects of the horizontal and vertical plates of the grid to be integrated with each other,        (c) Placing concrete according to the height of the upper floor slab of the design on the installed FRP (fiber reinforced plastic) grid to install composite FRP (fiber reinforced plastic) reinforced panel to install the upper floor slab of the bridge Or floor slab installation method using a composite FRP (fiber reinforced plastic) reinforcement panel characterized in that the floor slab, which is the building floor slab is installed.         The method of claim 5,         In addition to the above method of installation in the field, precast composite reinforced fiber (FRP) reinforcement panel of unit standard is manufactured in the same factory as the factory, and then installed on the upper flange of the bridge girder and the beam of the building. The protrusions of the horizontal and vertical plates of the grid of the composite FRP (fiber reinforced plastic) reinforcement panel are connected to each other, and the connection portions by the protrusions are made to cast non-contraction mortar or polymer concrete to the existing concrete surface. Floor slab installation method using a composite FRP (Fiber Reinforced Plastic) reinforcement panel characterized by assembling and installing the floor slab so as to connect with the.         The method of claim 5,         The FRP (Fiber Reinforced Plastics) grid is provided with a horizontal plate and a vertical plate made of one of FRP (FRP: Fiber Reinforced Plastics) or a pre-stick plate or steel sheet or wire mesh so as to be orthogonal at regular intervals. As one, the end of the horizontal plate and the vertical plate is provided with a protrusion of a constant length for connection with the horizontal plate and the vertical plate of another FRP (fiber reinforced plastic) grid is installed adjacent to, or the body of the protrusion A floor slab installation method using a composite FRP (FRP) fiber reinforced panel characterized in that it is one of the center or to form a groove and a projection in the projection.         The method of claim 5,         The steel is composed of a steel pipe consisting of one of a rectangular, triangular, corrugated, circular, and formulation, and composite FRP (FRP: fiber reinforced plastic), which is characterized in that it can be used in addition to the steel pipe (FRP: fiber reinforced plastic). ) Installation method of floor slab using reinforcement panel.         The method of claim 5,         The fiber is one of glass fiber, carbon fiber or arimid fiber, and the resin is one of vinyl ester or polyester or phenol resin which is highly resistant to concrete, and the concrete is characterized in that the concrete is general concrete or polymer concrete. Reinforcing floor slab using composite FRP reinforcement panel.

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