KR20060082976A - Culvert structure of the fiber reinforced polymers - Google Patents

Abstract

The present invention is a concrete base plate including side wall portions formed on both sides to be excellent in workability, economical efficiency, the fiber reinforced reinforcement is formed in the same cross-section or side cross-sections are installed so that the inner space is formed on the concrete base plate on the upper surface of both side walls It relates to a culvert structure manufactured using a fiber reinforced composite board comprising a composite plate.

FRP, GRP, Culvert, Underpass

Description

Culvert Structure of Fiber Reinforced Polymers

Figures 1a and 1b shows a culvert structure using a conventional glass fiber composite plate and corrugated steel sheet.

Figure 2 shows an extract of the connection between the culvert structure and the base plate produced using the fiber reinforced composite plate of the present invention.

Figures 3a and 3b shows examples of installing the fiber reinforced composite plate on the base plate in the culvert structure of the present invention, Figure 3c shows examples of the intermediate connector is installed on the assembled flat of the culvert structure.

4A and 4B illustrate a case in which the culvert structure is installed in one piece or segment using the fiber reinforced composite sheet of the present invention.

5A, 5B, 5C, 5D and 5E illustrate examples of longitudinal and transverse connectors used in the fabrication of culverts of the present invention.

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

100: concrete base plate 120: side wall

121: insertion groove formed in the side wall portion 140: fixing plate

200: fiber reinforced composite board 200b: prefabricated fiber reinforced composite board

200c: integral fiber reinforced composite board 200d: segment fiber reinforced composite board

300a, 300b, 300c, 300d, 300e: Connector

The present invention relates to a culvert structure manufactured using a fiber reinforced composite board. More specifically, the present invention relates to a culvert structure manufactured using a composite plate made of a fiber reinforced composite including FRP (Fiber Reinforced Polymer) or GRP (Glass Reinforced Polymer).

Conventional fiber reinforced composites are widely used as structural members because of corrosion resistance, water tightness, workability, and light weight, and various application products have been developed.

One of such applications is to manufacture a glass fiber composite plate 10 in which the fiber reinforced composite layers 12 and 13 are reinforced on the upper and lower surfaces of the resin mortar layer 11 as shown in FIG. 1A.

The glass fiber composite pipe is light and easy to process compared to a pipe made of general cast iron, etc., and is widely used as a pipe structure because there is no fear of corrosion.

In connection with the present invention, the Republic of Korea Patent Publication No. 53638 (construction method of the corrugated steel pipe structure) in the filling material filling space 40 formed in the precast base portion 30, the lower end of the semi-circular corrugated steel sheet 20 as shown in FIG. After fixing using the bolt 50, filling the filling material 60 in the filling space is introduced the construction method of the corrugated steel sheet structure used for underground passages, culverts and the like.

In the case of the corrugated steel sheet 20, it can be easily installed in the foundation by simple bolting operation because of the easy drilling and processing, but the weight is heavy, and the workability of the corrugated steel sheets to be bolted to each other is poor, and There is a disadvantage of high concern. In addition, the lack of rigidity of the corrugated steel sheet has a problem that the workability is very poor, such as to prevent the difference in height between the left and right side of the corrugated steel sheet culvert when the compaction work after filling. Therefore, as a new solution for solving the problems of the culvert structure using the corrugated steel sheet, the necessity of technology development that can be applied to the culvert structure is emerging.

An object of the present invention is to provide a culvert structure manufactured using a fiber reinforced composite plate that can be constructed as a culvert structure using a composite plate using a fiber reinforced composite.

Another object of the present invention is to provide a culvert structure manufactured by using a fiber reinforced composite board that can be configured in a more efficient cross-section using a composite plate using a fiber reinforced composite composite.

In order to achieve the above technical problem of the present invention

First, in fabricating the culvert structure, the semi-circular or flat fiber reinforced composite board may be installed on the concrete base plate, and may be installed at the same cross section or the side cross section, and the lower part of the composite plate may be easily installed on the concrete base plate. It can be installed stably.

Second, various connections were proposed to install the final culvert structure while connecting the fiber reinforced composite board in the longitudinal or transverse direction.

Third, in installing the fiber-reinforced composite plate, the culvert structure using the fiber-reinforced composite plate which can be manufactured to have a more efficient cross section by installing the prestress is introduced.

BRIEF DESCRIPTION OF DRAWINGS To describe the present invention more clearly and easily, the following describes the best embodiments of the present invention in detail with reference to the accompanying drawings, and embodiments according to the present invention may be modified in various other forms, and thus the scope of the present invention. Is not limited to the embodiment described below.

The culvert structure manufactured using the fiber reinforced composite board of the present invention has a concrete base plate 100 including side wall portions 120 formed on both sides, and both sides of the side wall portion 120 are disposed on the upper surface of the concrete base plate. It is connected to be formed so that the space (S) and the fiber reinforcement composite plate (200) formed in an equilateral cross-section or side surface; includes.

Figure 2 shows an excerpt perspective view of the culvert structure and the connecting end as a culvert structure manufactured using the fiber reinforced composite board 200 of the present invention, in particular having a closed cross-sectional structure.

In the case of the concrete base plate 100, the base plate 110 formed on the ground or in the ground, the base plate 110 may be configured to include a U-shaped concrete base plate formed with the side wall portion 120 is formed, the base plate It may also be composed of a base plate formed only on the side wall portion 120 on the (110).

In particular, the upper surface of the side wall portion 120 may be formed with a block-out insertion groove 130 so that the lower end of the fiber reinforced composite board 200 to be described later may be inserted, it may be formed in a plane. In particular, in the case of forming the plane, a separate fixing plate 140 may be installed in order to install the lower end of the fiber-reinforced composite plate 200 in the side wall portion.

The fiber reinforced composite board 200 itself may use a glass fiber composite plate reinforced with a fiber reinforced composite layer (glass fiber layer) on the upper and lower surfaces of the resin mortar layer shown in FIG. 1A, but is not limited thereto. It is also possible to use a glass fiber composite board without the like.

The fiber reinforced composite board 200 may be manufactured in a semi-circular or rectangular shape so that the inner space (S) is formed in order to be made of a structure of an underground passage or culvert, and may be manufactured in a constant cross-sectional size, In the case of manufacturing in the form of a cross section so that the cross section of the upper portion has the advantage that the resistance to appearance and load can be improved. In the case of Figure 2 is shown a semi-circular fiber reinforced composite board 200 of the cross-sectional shape.

Looking at an example of installing the fiber reinforced composite board 200 to the concrete base plate 100 based on the excerpt perspective view of FIG.

In the case of the excerpt of the left side, the insertion groove 130 is formed on the upper surface of the side wall portion 120 is formed to insert the lower portion of the fiber reinforcement composite plate 200 and then the filler 150 [modified to be shown in the figure ] Is charged and fixed. This is to adopt a method of simply inserting the lower portion of the fiber reinforced composite board 200 into the insertion groove 130 to fix the filler 150 [modified to be shown in the figure], in the case of a relatively thick lower portion This is because the workability of penetrating and fixing the side wall portions with bolts may be impaired.

In the case of the excerpt perspective on the right side, in particular, the fixing plate 140 is used. That is, the fixing plate 140 is formed on the lower surface of the fiber reinforced composite board 200 larger than the lower surface and includes a steel plate having a size corresponding to the upper surface of the side wall portion, and the lower surface of the fiber reinforced composite board 200. In the fixed state with an anchor bolt, the fixing plate 150 fixed to the lower surface of the fiber reinforced composite board 200 is also fixed to the upper surface of the side wall portion 120 with an anchor bolt.

In particular, as a method of installing the fiber reinforced composite board 200 may be manufactured in a semi-circular shape, etc. in which the shape is fixed in advance, in particular, in order to manufacture a more economic and efficient fiber reinforced composite board 200 is installed so that prestress is introduced in the present invention. The method was developed.

3A and 3B show an example of a method of installing the prestress to be introduced.

As shown in FIG. 3A, the fiber reinforced composite board 200a installed to introduce the prestress of the present invention has a horizontal force at the end in a state of being manufactured in the shape of a flat plate or an arc having a length or diameter greater than at least the width of the concrete base plate 100. F) is applied so that the lower ends of both ends of the fiber reinforced composite plate are restrained and installed on both side wall portions 120 of the concrete base plate 100.

At this time, the lower side of the fiber reinforced composite board (200a) by applying a horizontal force in the fixed state by the insertion groove 130 or the fixing plate formed in the side wall portion 120 of the concrete base plate 100, the other fiber reinforced composite The lower portion of the plate (200a) to be fixed to the other insertion groove 130 or the fixing plate of the concrete base plate (100).

Fiber-reinforced composite plate (200a) has an elastic force and when the horizontal force (F) is applied to the lower portion will be restored to the original form to restore. By restraining such restoring force, a prestress for generating an upward force (arrow direction) is introduced to the curved fiber reinforced composite board 200a to produce a fiber reinforced composite board 200a having an even cross section or a cross section of a smaller cross section. There is an advantage that it can.

The fiber reinforced composite board 200b installed to introduce the prestress of the present invention as shown in FIG. 3B includes a prefabricated plate 210b manufactured to have a length at least greater than the width of the concrete base plate; Fixed side plates (220b) provided at both ends of the fiber reinforced composite board; And a tendon 230b installed between the fixed side plates; forming a circular arc shape by applying a horizontal force (F) to the end in the state of producing a flat plate, and adding a horizontal force (F) to the end to form a fiber-reinforced composite plate ( Both lower ends of the 200b) may be restrained by the insertion grooves or the fixing plates formed on both sidewall portions 120 of the concrete foundation plate.

The fiber-reinforced composite board (200b) is produced in the form of a flat plate after the application of a horizontal force arc shape to suggest that it is possible to manufacture a fiber reinforced composite board.

Fabrication of the prefabricated flat plate 210b shows that since the length of the flat plate can be manufactured to a considerable length, the fabrication method can be easily manufactured and constructed. In particular, the prefabricated flat plate rotates to maintain the flat plate shape. It is possible to use a plate connector 240b that can accommodate the.

That is, as shown in FIG. 3C, a flat-panel connector 240b formed of an I-shaped cross section 241b, an I-shaped cross section with an upper and lower flange widened, and a cylindrical cross-section 243b may be used. When the horizontal force is applied using the semi-circular flat plate connector 244b, the prefabricated flat plate 210b can be bent while rotating like a hinge. The flat plate connector 210b is made of a material having sufficient elastic force to resist deformation caused by bending.

Fixed side plates 220b are installed at both ends of the flat plate 210b so as to maintain a circular arc shape by applying a horizontal force F to the assembled flat plate 210b. In a state in which both ends are supported by the fixed side plates, a tendon 230b is installed between the fixed side plates so that the tendons are bent together when applying a horizontal force, and additionally, the fiber reinforced composite board is made into a thinner plate using the restoring force of the tendons. It is possible to make 200b.

Also, at this time, the lower side of the fiber reinforced composite board (200b) is applied to the horizontal fiber in the state fixed by the insertion groove 130 or the fixing plate formed in the side wall portion 120 of the concrete base plate 100, the other fiber reinforced composite The lower portion of the plate (200b) to be fixed to the other insertion groove or fixing plate of the concrete base plate (100).

In addition, the fiber reinforced composite board 200 of the present invention can be installed while connecting the integral fiber reinforced composite board (200c) or segment fiber reinforced composite board (200d) in the installation method.

FIG. 4A illustrates a case in which the integrated fiber reinforced composite board 200c is installed in the concrete base plate 100 and may be applied to a case in which a culvert or an underground passage is manufactured with a relatively small size.

FIG. 4b illustrates a case in which the segment fiber reinforcement composite plate 200d is installed in the concrete base plate 100 while being connected in the longitudinal direction (C) or the transverse direction (D). can do.

In this case, the longitudinal direction may be regarded as the longitudinal direction of the culvert, and the lateral direction may be a vertical direction of the longitudinal direction.

In other words, in the case of large culverts, it is not impossible to manufacture integral fiber reinforced composite boards, but since large-scale equipment, transportation equipment, and temporary equipment can be enlarged, the construction can be simple but economically disadvantageous in terms of mass production. It may be desirable to install the possible segment fiber reinforced composite board (200d) by connecting to each other.

Means for connecting the segment fiber reinforced composite board (200d) to each other is referred to as the connector 300 in the present invention.

The connector 300 is a configuration that connects the segment fiber reinforced composite board (200d) to each other in the longitudinal or transverse direction is shown an example of Figure 5a to 5e.

The connector 300a of FIG. 5A further includes a connection end A of the segment fiber reinforced composite board 200d overlapped with the step 310a or a fixture 320b installed to penetrate the connection end or surround the connection end. This is the case.

Each segment fiber reinforcement composite plate (200d) is end-processed so that the step is made, and overlapped up and down by the step can be connected to the segment fiber reinforcement composite plate (200d). At this time, by installing the waterproof means (330b) to the connection end (A) to prevent leakage of rainwater to the connection end. At this time, the waterproof means can be installed by attaching a waterproof cloth, FRP or GRP plate with an adhesive.

The fastener 320b may be installed by tightening the nut by installing a bolt to penetrate the connecting end A, that is, the step 310a up and down, and install the bolt to penetrate the step 310a around the step 310a to tighten the nut. It may be installed or additionally may be installed by adding a reinforcement plate (340b) to fix the L-shaped bolt to the connection end.

The connector 300b of FIG. 5B includes a connection end A of the other segment fiber reinforced composite board inserted into the block-out insertion groove 310b at the end of the segment fiber reinforced composite board 200d.

It can be said to be a method of connecting the segment fiber reinforced composite board (200d) by a kind of socket type. In the case of the segment fiber reinforced composite board (200d) is inserted into the end of the insertion groove may further form a filler including mortar or adhesive in the insertion groove to enhance the adhesive force, by using the fastener (320b) including a bolt and nut additionally or separately It can be fixed through the connecting end (A).

At this time, the waterproof means (330b) is also installed to cover the connection end (A) to prevent the rain or the like leak to the connection end.

The connector 300c of FIG. 5C includes a segment fiber reinforced composite board 200d including an uneven portion B at an end thereof. And an intermediate connector 310c manufactured and bonded in a shape corresponding to the uneven portion B.

In the connection of the segment fiber-reinforced composite board (200d) it can be said that the installation of the intermediate connecting member.

The intermediate connector 310c has an I-shaped member in the form of I-shaped cross-section in FIG. 5C, but is not limited thereto, and may be manufactured in various shapes.

In the case of the intermediate connector 310c made of the I-shaped member, the concave-convex portion B may be formed at the end of the segment fiber-reinforced composite plate so that a protrusion having a size that can be inserted into the abdomen is formed.

In this case, the fastener 320c including the bolt and the nut may be installed to penetrate the upper and lower flanges of the intermediate connector and the protrusion to strengthen the binding.

At this time, the waterproof means (330c) is also installed on the connection end (A) including the intermediate connection member and the projection to prevent the rain or the like leak to the connection end.

FIG. 5D shows, in particular, the segment fiber reinforcement composite plate 200d in connection with each other in the longitudinal direction, that is, the segment fiber reinforcement composite plate 200d including an uneven portion B at its end; And an intermediate connector 310d manufactured and bonded to the concave-convex portion B in a shape corresponding to the concave-convex portion B. In the connector 300d, the reinforcing plate 320d is further installed on the upper and lower surfaces of the connector. It is.

That is, by installing the plate-shaped reinforcement plate 320d made of aluminum, steel plate, FRP, GRP, and by additionally forming a fixture and / or waterproof means can further enhance the connection performance of the connecting end.

Furthermore, as shown in FIG. 5E, the segment glass fiber composite plate 200d having no unevenness is formed to face each other, and the reinforcing plate 320d is connected to the upper and lower ends of the connecting end by further forming fixtures and / or waterproofing means. You can also enhance performance.

In the case of the structure manufactured using the fiber reinforced composite board of the present invention, the construction is very excellent, and it becomes possible to install the culvert, underground passage structure using the economically reinforced fiber reinforced composite board through mass production.

Claims (14)

A concrete base plate including side wall portions formed on both sides, the both sides of the side wall portion is connected to be formed so as to form an inner space over the concrete base plate, the fiber reinforced composite plate formed of an equilateral cross-section or side; Culvert structure manufactured using fiber reinforced composite board. The culvert fabricated by using the fiber reinforced composite board according to claim 1, wherein an insertion groove is formed on the upper surface of the side wall portion so that the bottom of the fiber reinforced composite sheet is inserted and then filled and fixed with a filler. structure. According to claim 1, After the bonding plate is installed on the lower surface of the fiber reinforced composite sheet fabricated using a fiber reinforced composite sheet characterized in that the bonding plate is fixed with a fastener including an anchor bolt on the upper surface of the side wall portion Culverts. The method of claim 1, wherein the fiber reinforced composite board is installed after being integrally manufactured or fabricated using a fiber reinforced composite board characterized in that the segment fiber reinforced composite board of the longitudinal or transverse cross-section is coupled by a connector. Culverts. The method of claim 4, wherein the fiber reinforced composite plate The bottom of both ends of the fiber-reinforced composite plate is restrained and installed on both side walls of the concrete base plate by applying horizontal force to the end in the state of being made into a flat plate or arc shape having a diameter larger than the width of the concrete base plate. A culvert structure manufactured using a fiber reinforced composite board, characterized in that the prestress is installed to be introduced. The method of claim 4, wherein the fiber reinforced composite plate A prefabricated plate manufactured to have a length of at least greater than the width of the concrete foundation plate; Fixed side plates provided at both ends of the fiber reinforced composite sheet; And In the state of manufacturing in the form of a flat plate including a tendon installed between the fixed side plate, while applying a horizontal force to the end to be formed in an arc shape while the lower ends of both ends of the fiber reinforced composite plate is restrained and installed on both side walls of the concrete base plate A culvert structure manufactured using a fiber reinforced composite board, which is installed to introduce a prestress resistant to a working load. The longitudinal or transverse connector of the segmented glass fiber composite plate according to any one of claims 4 to 6, comprising a connecting end of the segmented fiber reinforced composite sheet overlapped with a step or passing through the connecting end. Or culvert structure manufactured using a fiber reinforced composite board further comprises a fixture installed to wrap around the connecting end. 8. The culvert structure of claim 7, wherein the connecting end is further provided with a waterproofing means. 7. The segment fiber reinforced composite board according to any one of claims 4 to 6, wherein the longitudinal or transverse connector of the segment fiberglass composite sheet is inserted into a block-out insertion groove at the end of the segment fiber reinforced composite sheet. Culvert structure produced using a fiber reinforced composite plate, characterized in that it comprises a connecting end of. 10. The culvert fabricated using a fiber reinforced composite sheet according to claim 9, wherein a fastener penetrating the connecting end is further installed or a filler penetrating the connecting end is further installed after the filler is further filled in the insertion groove. structure. 11. The culvert structure according to claim 10, wherein a waterproofing means is further installed at the connection end. The longitudinal or transverse connector of any one of claims 4 to 6, wherein the segment fiber reinforced composite sheet Segment fiber reinforced composite plate comprising an uneven portion at the end; And And an intermediate connector fabricated in a shape corresponding to the concave-convex portion, and bonded to each other. The culvert structure manufactured by using the fiber reinforced composite sheet further comprising a fixture installed to penetrate the intermediate connector and the concave-convex portion. 13. The culvert structure of claim 12, wherein the intermediate connector and the segment fiber reinforced composite board are further provided with waterproofing means. The longitudinal connector of any one of claims 4 to 6, wherein the longitudinal connector of the segment fiber reinforced composite sheet is Segment fiber reinforced composite plate comprising an uneven portion at the end; Intermediate connector is made and bonded in a shape corresponding to the uneven portion; And Reinforcing plate is installed on the upper and lower surfaces of the segment fiber reinforced composite board including the intermediate connector and the uneven portion; further comprising a fixture or penetrates the intermediate connector and the uneven portion is further installed waterproof means to the intermediate connector, reinforcing plate Culvert structure produced using a fiber reinforced composite board, characterized in that.

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