KR20020070065A - Integrally Bonded Fiber Reinforced Composite Deck of Adjustable Alignment, Method for Fabrication and Connection thereof - Google Patents

Abstract

PURPOSE: Provided is a bridge floor made of composite material having light weight, anti-corrosion, high-strength, high durability properties suitable to a wide application corresponding to free-linear design and produced in an integrated panel material. CONSTITUTION: The floor(10) is formed by aligning triangular tube components(1) in parallel to form a framework for the floor; and reinforcing upper, lower and outer sides of the framework with each of upper, lower and side plates(3,4,5) prepared by composite lamination materials as required. The prepared laminate plate is formed of reinforcing fiber selected from glass fiber, carbon fiber or aramid fiber and a resin selected from polyester, vinyl ester, phenol or epoxy resin, etc. and by common processes selected from Hand Lay-up, Filament Winding, Pultrusion, VARTM or the like.

Description

Integrated Bonded Fiber Reinforced Composite Deck of Adjustable Alignment, Method for Fabrication and Connection

The present invention relates to a composite bridge deck of light weight, corrosion resistance, high strength, and high durability used as a bridge deck, specifically replacing the conventional bridge deck made of steel or reinforced concrete It can be applied to any free form regardless of the straight or curved part of the bridge, and is made of integrally bonded type free-bonded self-adhesive fiber-reinforced composite bridge deck with excellent durability, strength, etc. It relates to the connection structure with the mold.

Conventional concrete deck has a severe deterioration of concrete due to various harmful environments, such as the exhaust gas effect, snow spraying, etc., the corrosion of the reinforcing steel bar, the endurance life is significantly reduced to about 15 to 20 years, and there is a problem in the structural safety. In addition, there is a problem that the replacement cost of the deteriorated floor plate and the maintenance cost for the public are significantly increased, and the inconvenience and indirect cost due to the prolonged traffic control during repair and replacement work are greatly burdened.

In order to solve this problem of the conventional concrete deck, a composite bridge deck has been developed in which a bottom frame is formed using a tubular member made of a composite laminate. Replacing the conventional concrete deck with such a composite bridge deck has a number of advantages as follows.

Composite bridge deck is a ready-made product that can be manufactured in advance, not at the site. Using the ready-made composite bridge deck for the improvement and repair of bridge performance minimizes the vehicle control period and reduces energy costs due to vehicle delays. Significantly reduce waste, minimize inconvenience to citizens, and shorten construction costs.

In addition, the use of composite bridge deck when repairing new bridges and bridges can fundamentally prevent problems due to deterioration of concrete due to corrosion resistance and high durability, and significantly increase durability. This is greatly reduced.

Since the weight of the composite bridge deck is about 1/5 of the concrete deck, when the lightweight composite bridge deck is constructed to improve the bridge performance, the weight of the bridge deck is reduced, so the bridge without girder and substructure reinforcement As a result, the initial construction cost can be greatly reduced, and the weight of transportation and construction equipment can be reduced, and the seismic reduction can be greatly improved.

In the late 1970s, due to the change in the specifications of domestic road bridges, bridges that were designed and constructed in the past were designed to be DB1 or DL18 load, which is the design standard of the 1st bridge, were reduced to 2nd bridge according to the current design standards. There are many bridges scattered around the country, including expressways, that require performance improvements.

According to the number of bridges by design load in the Bridge Status Report compiled by the Ministry of Construction and Transportation, as of the end of 1999, there were 8,623 bridges with more than half of DB18, the second-highest bridge among the 15,615 bridges in Korea. Therefore, the need to replace the bottom plate and improved performance are required. In particular, since about 332 bridges on the highway are below DB18, which is the 2nd bridge, it is necessary to improve the performance to DB24, which is the 1st bridge, in order to unify the transit load of the entire road. The use of fiber reinforced composite bridge deck with the above advantages when improving the performance of the bridge enables economic performance improvement, and it is a highly durable material that can significantly increase the service life after performance improvement.

In the conventional composite bridge deck, each of the tube-shaped members, that is, the tube members are already manufactured, and the tube members are adhered to each other using an adhesive. In other words, the respective tube members are only bonded by an adhesive and are not integrated with each other. Therefore, it is difficult to ensure complete adhesion between each tube member during vibration and fatigue due to vehicle load during common use of the bridge, and the separation of adhesive parts may occur, resulting in a very weak structural structure. There is a problem of not having integrity.

In addition, in the conventional composite bridge deck plate is manufactured using only the tube member having a uniform cross-section, it is suitable for use in the straight portion of the bridge, there is a problem that can not be applied to the curved portion.

It is an object of the present invention to provide a composite bridge deck having light weight, corrosion resistance, high strength, and high durability that can solve the problems of the prior art.

Specifically, it is an object of the present invention to provide a composite bridge deck that is applicable to both straight and curved portions regardless of the linearity of the bridge.

In addition, the present invention is not simply bonding the prefabricated tube member using an adhesive. An object of the present invention is to provide a composite bridge bottom plate in which each tube member is integrally formed to form a structure in which the bottom plate is integrally formed.

1 is a schematic perspective view of a composite bridge deck of the present invention fabricated using a triangular tube member.

Fig. 2A is a schematic perspective view of a uniform cross-sectional tube member in the form of a triangular cross section applied to the straight portion of the bridge.

2A is a schematic perspective view of a triangular cross-sectional tube member having a triangular cross section applied to a curved portion of a bridge.

Figure 3 is a schematic perspective view of the top plate is omitted from the composite bridge bottom plate of the present invention applied to the curved portion of the bridge.

Figure 4 is a schematic diagram for explaining the manufacturing process of the composite bridge deck according to the present invention.

Figure 5a is a schematic diagram showing the shape of the composite bridge bottom plate of the present invention is installed on the upper mold in the steel sheet bridge consisting of the straight portion and the curved portion of the bridge.

FIG. 5B is an enlarged view of portion A of FIG. 5A.

5C is an enlarged view of a portion B of FIG. 5A.

6 is a partial cross-sectional view of a composite bridge deck according to the present invention in which two tube members are united.

7A and 7B are partial cross-sectional views of a composite bridge deck consisting of a tube member having a rectangular cross-sectional shape and an elliptical cross-sectional shape, respectively.

8A and 8B are exploded perspective and schematic perspective views of yet another embodiment of the composite bridge deck according to the present invention in which the tube member is vertically disposed and the plate is coupled to the upper and lower portions thereof.

9A-9D schematically illustrate a tube member having a cross section of square, triangular, hexagonal or elliptical shape in the embodiment shown in FIGS. 8A and 8B.

<Brief description of the main parts of the drawing>

1 triangular tube member 1a uniform section tube member

1b end face tube member 2 end tube member

3 upper plate 4 lower plate

5-side plate 6 Composite laminate

7 Reinforcement Fiber 8 Mold

10 Composite Bridge Deck 12 Inlet

20 template 21 shear key

In order to achieve the above object, in the present invention, a polygonal cross-sectional tube member made of a fiber-reinforced composite laminate plate is joined in parallel so as to be in contact with each other in parallel to form a skeleton of the bottom plate, the side of the tube member The upper plate, lower plate and side plate made of fiber-reinforced composite laminates are integrally bonded and reinforced on the upper, lower and side surfaces of the bottom plate frame so that they can be applied to straight and curved free-line bridges. A composite bridge deck is provided, characterized in that it is manufactured adhesively.

As a specific embodiment of the present invention, the polygonal cross-sectional tube member, the cross-sectional size is changed in the width direction of the base plate frame while maintaining the height of the bottom plate in accordance with the curve in the longitudinal direction of the base plate frame. The composite bridge deck plate is provided, which is made so that it can be applied to the curved portion of the bridge.

The frame of the bottom plate is integrally manufactured by contacting each other before the resin of the tube member made of the composite laminate is completely cured.

In addition, in the present invention, the tubular member having a polygonal cross-sectional shape made of a fiber-reinforced composite laminate is disposed so that both ends thereof face the top and the bottom, respectively, and joined together in parallel so that the side faces abut each other to form a skeleton of the bottom plate. By integrally joining the upper plate, the lower plate and the side plate made of fiber-reinforced composite laminates to reinforce the upper and lower surfaces of the bottom plate frame and the side of the bottom plate frame formed at both ends of the tube member, respectively. Provided is a composite bridge bottom plate, characterized in that integrally manufactured.

In the above composite bridge deck of the present invention, the composite laminate comprising the tube member is made of reinforcing fibers selected from glass fibers, carbon fibers or aramid fibers, and selected from polyester, vinyl ester, phenol or epoxy. It consists of resin. The cross-sectional shape of the tube member constituting the bottom plate frame may be selected from triangles, trapezoids, squares, circles, ellipses or hexagons.

In addition, the present invention also provides a method for producing a composite bridge deck plate, having a thickness and size of the bottom plate to be manufactured in a mold having an upper surface, a lower surface and a side, fiber reinforced composite made of reinforcing fibers and resin Insert a tubular member having a polygonal cross-sectional shape composed of a material laminate, and insert the tube member that has not been cured into the mold sequentially before the resin of the already inserted tube member is cured, so that the sides of the tube members come into contact with each other. The upper plate, the lower plate and the side plate formed of fiber-reinforced composite laminates are integrally formed on the upper, lower and side surfaces of the bottom plate frame corresponding to the side surface of the tube member. Bonded composite bridges that can be applied to straight and curved free-line bridges A method for producing the bottom plate is provided.

In the above manufacturing method, before inserting the tube member into the mold, the upper member, the lower plate and the side plate made of a composite laminate on the upper surface, the lower surface and the side of the mold, respectively, and then the tube member The top plate, the bottom plate and the side plate may be inserted into the tube member so as to be sequentially inserted.

In addition, in the present invention, as the coupling structure of the composite bridge bottom plate and the bridge mold, the shear key formed in the upper portion of the bridge mold through a hole formed in the bottom surface of the composite bridge bottom plate is located in the tube member, both sides of the tube member It is provided with a partition wall to close the to form a predetermined space, the concrete is injected through the injection hole formed in the upper portion of the composite bridge bottom plate corresponding to the position where the shear key is inserted, the shear key is hardened in a state of embedding, The injection hole is provided with a combined structure of the composite bridge bottom plate and the bridge mold, characterized in that the cover is closed with a composite laminate.

Hereinafter, a detailed configuration and an embodiment of the present invention will be described with reference to the accompanying drawings.

1 is a schematic perspective view of the composite bridge deck 10 of the present invention produced using a triangular tube member (1), a composite bridge deck 10 produced to be applied to the curved portion of the bridge Is showing.

The composite bridge bottom plate 10 of the present invention comprises a frame of the bottom plate in the form of connecting the triangular tube member 1 made of the composite laminate side by side in parallel, the upper portion made of the composite laminate plate as needed Reinforce the upper surface, the lower surface and the outer surface of the bottom plate frame with the plate 3, the lower plate 4 and the side plate 5 to form the entire composite bridge bottom plate 10. 1 shows that the composite bridge bottom plate 10 of the present invention is modularized to a predetermined length, thereby making the entire bridge by constructing a plurality of modular composite bridge bottom plate 10 and connecting them. do. As shown in FIG. 1, both ends of the modular composite bridge deck 10 consist of end tube members 2 of trapezoidal to right triangle shape. The connection structure of the modular composite bridge deck 10 will be described later.

2A and 2B schematically illustrate triangular tube members 1a and 1b constituting the composite bridge deck 10 of the present invention, and FIG. 2A shows a uniform cross-sectional tube member used to form a straight portion of the bridge. 1a is shown, and in FIG. 2b there is shown a cross-sectional tube member 1b which is used when forming the curved portion of the bridge.

Although the upper triangular top vertices of the triangular tube members 1a and 1b are shown in the drawing with a predetermined width, this is rather exaggerated and the triangular tube members 1a and 1b used in the present invention are somewhat flat. It is actually made up of triangles. By forming the upper vertex somewhat flat, the fabrication and joining of the tube member can be easily performed.

As shown in FIG. 2B, the triangular cross-sectional tube member 1b forming the curved portion of the bridge has a shape in which the size of the upper edge portion of the triangular cross section and the base of the triangular cross section gradually increases from the inside of the curved portion to the outside of the curved portion. Is done. That is, the height of the triangular cross section is kept constant so as to maintain the thickness of the bottom plate, the size of the upper edge portion of the triangular cross section and the base side of the triangular cross section is changed in accordance with the curved portion.

The tube members 1a and 1b are made of a composite laminate 6 composed of a resin and a reinforcing fiber such as glass fiber, carbon fiber, aramid fiber and the like. In general, the composite laminate 6 is prepared by arranging the above reinforcing fibers in a laminated structure and then impregnating the resin. As the resin constituting the composite laminate 6, polyester, vinyl ester, phenol, epoxy or the like is used.

As a method of manufacturing the tube members (1a, 1b) with the composite laminate 6 described above, Hand Lay-up, Filament Winding Pultrusion, Vacuum Molding (VARTM: Vacuum) Known composite member manufacturing methods such as Assisted Resin Transfer Molding) can be used.

As one embodiment, a process of manufacturing a straight triangular tube member 1a by a method in which a lamination method and a filament winding method are synthesized is described. First, the reinforcing fibers 7 are laminated in the longitudinal direction of the tube member 1a. And it is disposed in the inclined direction, in the transverse direction of the tube member (1a) and the reinforcing fibers (7) impregnated in the resin is continuously wound around the outer end of the closed end of the tube member (1a) by filament winding and arranged 1a) is produced. According to the method of arranging the reinforcing fibers, the reinforcing fibers 7 disposed in the longitudinal and inclined directions of the tube member 1a are further wound by the reinforcing fibers 7 in the transverse direction, so that the laminated reinforcing fibers are secured. It will be able to take a seat. In addition, since the structural integration and restraint effect is enhanced, there is no fear that the composite laminate structure is separated, thereby ensuring structural integrity.

The tube member 1a is made of hollow cross-section by demolding the inner mold, or having a tubular cross-sectional shape by placing the reinforcing fiber 7 in an inner mold (mandrel) (not shown), impregnating the resin, and curing the tube member 1a. By placing the reinforcing fibers 7 directly in the core (not shown) and impregnating the resin, the core may be left intact even after the composite laminate is manufactured, and thus it may be manufactured in a solid cross section without a separate demolding process. In the case of the solid section, the core material may be a rigid foam, wood or coated EPS. The cross-section triangular tube member 1b used for fabricating the curved portion of the bridge of FIG. 2b may also be manufactured by the same method as above. You can use a template or core.

Composite bridge deck 10 according to the present invention is very suitable for constructing the curved portion of the bridge. 3 illustrates a state in which the top plate is omitted from the composite bridge bottom plate 10 applied to the curved portion of the bridge. As shown in FIG. 3, in order to construct the composite bridge deck 10 applied to the curved portion of the bridge, the cross-sectional width of the tube member 1b as shown in FIG. Increasingly increasing and changing the cross-sectional triangle tube member (1b) is arranged side by side to connect.

Next, a process of manufacturing the composite bridge deck of the present invention by coupling the tube members will be described with reference to FIG. 4. First, a mold 8 having a top plate, a bottom plate and a side plate is prepared according to the thickness and size of the composite bridge bottom plate 10 to be manufactured. An end tube member 2 composed of a composite laminate and having a trapezoidal to right triangle cross-sectional shape is sandwiched between the upper plate and the lower plate of the mold 8. The resin of the composite laminate forming the end tube member 2 is Before curing, adjacent triangular tube members 1 are inserted between the top and bottom plates of the mold 8 in line with the end tube members 2 and placed side by side adjacent to the end tube members 2. In this case, the newly inserted triangular tube member 1 is also a state before the resin of the composite laminate is cured, so that two adjacent tube members 1 and 2 are integrally bonded to each other by the composite laminate, so that two adjacent tube members are integrated together. It is completely bonded to form a structure. Subsequently, another triangular tube member 1 is sequentially inserted and integrally bonded to each other before the resin of the already fitted tube member 1 is cured. Finally, another end tube member (not shown) having a trapezoidal to right triangle cross section (not shown) is inserted into the required number of triangular tube members 1 to be integrally combined with neighboring triangular tube members. After disassembling the mold 8, the upper plate 3, the lower plate 4, and the side plate 5, each of which is made of a composite laminate, on both sides of the tube member, are fabricated and bonded to each other to cure the composite bridge bottom plate ( Complete 10).

As another method, the upper plate (3), the lower plate (4) and the side plate (5) is placed in advance in the mold (8) composite composite plate, each tube member is inserted sequentially to the bottom of the composite bridge The board 10 can also be manufactured.

As described above, the composite bridge bottom plate 10 of the present invention is a composite laminate of substantially adjacent tube members because neighboring tube members are bonded to each other before the resin of the composite laminate constituting the tube member is hardened in its fabrication process. These are integrated into one another and combined. Therefore, even if the tube members are manufactured separately, the entire composite bridge bottom plate 10 is not a simple assembly form of the tube member, but is formed in a form in which the tube members are integrally combined so that the bottom plate assembly is not likely to be separated. Its structural integrity is guaranteed and its strength and durability are excellent.

Next, with reference to Figures 5a to 5c, it will be described the connection structure of the composite bridge deck 10 according to the present invention modularized. Figure 5a is a schematic diagram showing the shape of the composite bridge bottom plate 10 according to the present invention installed on the mold 20 in the steel sheet bridge consisting of the straight portion 100 and the curved portion 200, 5B is an enlarged view of portion A of FIG. 5A, which illustrates a connection structure between the composite bridge deck 10 and the mold 20, and FIG. 5C is an enlarged view of portion B of FIG. 5A, and is made of a modular composite material. The connection structure between the bridge deck 10 is shown.

As shown in FIG. 5A, the composite bridge deck 10 according to the present invention may be applied to the straight portion 100 and the curved portion 200 of the bridge, and may be manufactured in a predetermined length. The modular composite bridge deck 10 is placed over the mold 20 of the bridge, wherein the connection between the composite bridge deck 10 and the mold 20 can be made as shown in FIG. 5B. Specifically, the shear key 21 is provided on the upper portion of the mold 20. The bottom surface of the composite bridge bottom plate 10 is formed with a hole 11 so that the shear key 21 can be inserted, so that when the composite bridge bottom plate 10 is placed on the mold 20, the shear key ( 21) is located inside the composite bridge deck 10. As shown in FIG. 5B, an angle member 22 may be provided on the mold 20, and the composite bridge bottom plate 10 may be disposed on the angle member 22.

An injection hole 12 for injecting concrete is formed in an upper portion of the composite bridge bottom plate 10 corresponding to the position at which the shear key 21 is inserted. The partition wall 13 is provided so that the injected concrete 23 does not flow to both sides of the tube member of the composite bridge deck 10.

The composite bridge bottom plate 10 is placed on the mold 20 so that the shear key 21 is positioned inside the bottom plate 10 through the hole 11 of the bottom plate, and then through the inlet 12 23) Inject to fill. As the injected concrete 23 is cured and cured, the mold 20 and the composite bridge deck 10 are more firmly synthesized. When the injection of the concrete 23 is completed, the injection port 12 is closed by integrally adhering the strip 14 made of the composite laminate to the top of the bottom plate 10.

A connection structure between the straight portion 100 and the curved portion 200 will be described with reference to FIG. 5C. Shear key 31 is provided on the cross beam 30 of the bridge, the shear key 31 is located in the interior of both composite bridge bottom plate 101, 201 to be connected respectively. Holes 111 and 211 are formed in the lower surface of the end side of both composite bridge deck plates 101 and 201 connected so that the shear key 31 is located therein. Composite bridge bottom plate 101, 201 may be placed directly on the cross beam 30, as shown in Figure 5c, to install the angle member 32 in the cross beam 30, the angle member 32 The composite bridge deck plates 101 and 201 may be placed thereon. Injection holes 112 and 212 for injecting concrete are respectively formed in the upper portions of the composite bridge deck plates 101 and 201 corresponding to the positions at which the shear key 31 is inserted.

When the composite bridge bottom plates 101 and 201 of both sides are placed on the cross beam 30, the shear key 31 is positioned inside the composite bridge bottom plates 101 and 201 through the holes 111 and 211 of the bottom plate. . End side surfaces of the composite bridge deck plates 101 and 201 on both sides are in contact with each other, and the parts to be contacted are joined using an adhesive or the like.

Concrete 33 is injected and filled through the injection holes 112 and 212 of the composite bridge deck plates 101 and 201. As the injected concrete 33 is cured and cured, the crossbeam 30 and the composite bridge bottom plates 101 and 201 on both sides are integrally synthesized with each other more firmly. When the injection of the concrete 33 is completed, the injection holes 112 and 212 are closed by integrally adhering the strip 34 made of the composite laminate to the upper portions of the bottom plates 101 and 201.

Next, a modified embodiment of the present invention will be described. 6 is a cross-sectional view of another embodiment of the present invention. In the illustrated embodiment, two triangular tube members are integrally formed by pre-fabricating the bottom plate unit 40 having a shape in which the two triangular tube members are integrally connected, and bonding the pre-fabricated bottom plate units 40 side by side to each other. The material bridge deck 10 will be manufactured. Each bottom plate unit 40 is molded and manufactured in a shape in which two triangular tube members 1 and the upper and lower upper plates 3a and 4a are integrally formed. Since the bottom plate unit 40 integrally molded and formed has irregularities on its side surface, the neighboring bottom plate unit 40 is arranged side by side in accordance with the irregularities and is bonded to each other using an adhesive such as epoxy. By doing so, the entire composite bridge deck 10 is completed.

1 to 6, but described with respect to the composite bridge bottom plate consisting of a tube member having a triangular cross-sectional shape, the cross-sectional shape of the tube member may be modified.

7A and 7B show cross-sectional views of a composite bridge deck using another cross-sectional tube member. FIG. 7A is a cross-sectional view of the composite bridge bottom plate 50 using the tube member 51 having a rectangular cross section, and FIG. 7B is a cross-sectional view of the composite bridge bottom plate 60 using the tube member 61 having an elliptical cross section. In addition, a composite bridge deck may be formed by using various cross-sectional tube members, such as circular, hexagonal, and trapezoidal, and the composite bridge deck may be configured by combining the above-described various cross-sectional tube members. It is also possible.

8A and 8B show in perspective view an embodiment of another type of composite bridge deck provided by the present invention. The composite bridge bottom plate 70 according to the embodiment shown in the drawing is disposed vertically in a state in which a plurality of tube members 71 are bonded to each other and integrated on the lower plate 73, and the upper plate 72 is disposed thereon. ) Is integrally attached.

Since the method of manufacturing the tube member 71 and the method of integrating and integrating the tube members 71 are the same as described above with reference to FIGS. 1 to 4, repeated description thereof will be omitted.

This type of composite bridge deck can be formed simultaneously with a large composite bridge deck by integrating the tube member 71, the top plate 72 and the bottom plate 73 using a vacuum forming process. In this case, after wrapping the reinforcing fibers in the form of woven fabrics arranged in a variety of core materials consisting of a rigid foam foam, such as polyurethane, polycyanurate, or coated EPS, the outside of the vacuum treatment At the same time, the resin is impregnated with a pressure difference to produce a composite bridge deck of an integral structure. In addition, by varying the dimensions of the vertically arranged tube member it can be applied to both the straight or curved portion of the bridge.

9A-9D show in plan view various cross-sections and arrangements of the tube members of still other embodiments of composite bridge decks with tube members disposed vertically. As shown in the figure, the cross section of the tube member in the composite bridge deck plate with the tube member disposed vertically is rectangular (Fig. 9A), triangular (Fig. 9B), hexagonal (Fig. 9C), elliptical (Fig. 9D), etc. It can be modified in various forms.

The composite bridge deck of the present invention can be used in place of the bridge deck made of conventional concrete and steel materials. Compared with the conventional bridge deck, the composite bridge deck of the present invention has a low self-weight, thereby reducing the size of the structure supporting the bridge deck, making it easier to manufacture and transport, and the same heavy equipment as before. No need is needed and construction work is relatively easy, thus reducing construction costs. In particular, since the self-weight of the composite bridge deck that forms the superstructure of the bridge is small, the weight of the entire structure is greatly reduced, so that the earthquake load due to the earthquake is also reduced to the same ratio, and as a result, the seismic performance of the structure is greatly improved.

In addition, since the composite bridge deck is composed of a composite laminate having excellent durability, chemical resistance and the like, it is possible to solve the problem of corrosion due to environmental influences.

In particular, when the composite bridge deck of the present invention is used to replace the concrete deck of the bridge designed and constructed with DB18 or DL18 load, the self-weight of the superstructure is reduced to 1/5 or less, Without additional reinforcement of the infrastructure such as girders and piers, it is possible to increase the load capacity for live loads, thereby significantly reducing construction costs. In addition, the new bridges can be designed and constructed significantly more economically than the conventional structure.

In addition, it is possible to assemble the composite bridge deck made beforehand at the factory instead of the site at the same time as dismantling the concrete deck, thereby dramatically reducing the traffic control period during replacement, thereby reducing indirect costs and reducing citizens. It can greatly ease your discomfort. In addition, the composite bridge deck of the present invention is pre-fabricated in the factory, thereby reducing the work in the field it is possible to significantly shorten the construction air.

In addition, since the composite laminate has excellent corrosion resistance and high durability, there is no need for maintenance after construction, and the bridge's lifespan is greatly extended at the same time as the upgrade of the bridge, thereby maximizing the efficiency of the construction investment cost.

In the configuration, the composite bridge deck of the present invention uses a tube member having a cross-sectional shape, and is thus suitable for forming a curved portion of a bridge. In addition, the composite bridge bottom plate of the present invention, the neighboring tube member is bonded to each other before the resin of the composite laminate of the tube member is cured so that the composite laminate of the substantially neighboring tube member is bonded to each other to form an integration. do. Therefore, the entire composite bridge deck is made of a form in which the tube members are integrally coupled to each other, rather than a simple assembly form of the tube members, thereby providing excellent strength and durability.

In the above described the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited to this and can be changed freely according to the technical idea of the present invention.

Claims (11)

Polygonal cross-sectional tube members made of fiber-reinforced composite laminates are joined together in parallel so that their sides abut each other to form a skeleton of the bottom plate, The upper plate, the lower plate and the side plate made of fiber-reinforced composite laminates are integrally bonded to the upper surface, the lower surface and the side surface of the bottom plate frame corresponding to the side surface of the tube member, thereby reinforcing straight and curved free linear bridges. Composite bridge bottom plate, characterized in that made to be integrally bonded so that can be applied. According to claim 1, wherein the polygonal cross-sectional tube member is a cross-sectional side that the cross-sectional size in the transverse direction of the bottom plate frame while maintaining the height of the bottom plate in accordance with the curve in the longitudinal direction of the bottom plate frame. As a result, the composite bridge deck is characterized in that it can be applied to the curved portion of the bridge. The composite laminate according to claim 1 or 2, wherein the composite laminate comprising the tube member comprises a reinforcing fiber selected from glass fiber, carbon fiber or aramid fiber, and a resin selected from polyester, vinyl ester, phenol or epoxy. Become; The frame of the bottom plate composite composite bridge bottom plate, characterized in that the neighboring tube members are integrally joined to each other before the resin of the tube member made of a composite laminate is completely hardened and joined together. The composite bridge deck according to claim 1 or 2, wherein the cross-sectional shape of the tube member constituting the bottom plate frame is triangular, trapezoidal, square, circular, elliptical or hexagonal. Polygonal cross-sectional tube members made of fiber-reinforced composite laminates are arranged vertically with their ends facing the top and bottom, respectively, and joined together in parallel so that their sides contact each other to form a skeleton of the bottom plate, The upper plate, the lower plate and the side plate made of fiber-reinforced composite laminates are integrally bonded to each other to reinforce the upper and lower surfaces of the bottom plate frame and the side surfaces of the bottom plate frame formed at both ends of the tube member. Composite bridge bottom plate, characterized in that the manufacturing method. 6. The composite laminate according to claim 5, wherein the composite laminate constituting the tube member is composed of a reinforcing fiber selected from glass fiber, carbon fiber or aramid fiber, and a resin selected from polyester, vinyl ester, phenol or epoxy; The frame of the bottom plate composite composite bridge bottom plate, characterized in that the neighboring tube members are integrally joined to each other before the resin of the tube member made of a composite laminate is completely hardened and joined together. 7. The composite bridge deck of claim 5 or 6, wherein the cross-sectional shape of the tube members arranged vertically to constitute the bottom plate frame is triangular, trapezoidal, square, circular, oval or hexagonal. The method according to claim 5 or 6, wherein the size and cross-sectional shape of the tube members vertically arranged to constitute the bottom plate frame are gradually changed along the transverse direction of the bottom plate, so that the curves can be applied to curved portions of the bridge. Composite bridge bottom plate, characterized in that to form the bottom plate of the mold. Into the mold having a thickness and size of the bottom plate to be manufactured and having a top surface, a bottom surface and a side surface, a tube member having a polygonal cross-sectional shape composed of a fiber-reinforced composite laminate made of reinforcing fibers and a resin is inserted. The tube member, which has not been cured, is inserted into the mold sequentially before the resin of the tube member which has already been inserted is cured, joined together in parallel so that the side surfaces of the tube members abut each other, thereby forming a skeleton of the bottom plate, The upper plate, the lower plate and the side plate made of fiber-reinforced composite laminates are integrally bonded to the upper surface, the lower surface and the side surface of the bottom plate frame corresponding to the side surface of the tube member, thereby reinforcing straight and curved free linear bridges. Method of manufacturing a single adhesive composite bridge deck that can be applied. 10. The method of claim 9, before inserting the tube member into the mold, the upper plate, the lower plate and the side plate made of a composite laminate on each of the upper surface, the lower surface and the side of the mold, and then the tube member is sequentially Method of manufacturing a composite adhesive composite bridge bottom plate, characterized in that the top plate, the bottom plate and the side plate to be integrated with the tube member by inserting into. The combination structure of the composite bridge deck and the bridge mold of claim 1, wherein a shear key formed in the upper portion of the bridge mold through a hole formed in the bottom surface of the composite bridge deck plate is located in the tube member, The partition wall is provided to close both sides of the tube member to form a predetermined space, Concrete is injected through an injection hole formed in an upper portion of the composite bridge bottom plate corresponding to the position where the shear key is inserted, and the concrete is hardened in a state where the shear key is embedded. The injection hole is a composite structure bridge deck and bridge mold coupling structure characterized in that the cover is closed with a composite laminate.