KR101598962B1 - Reinforcement pipe girder and a bridge using the same - Google Patents

Abstract

The purpose of the present invention is to provide a reinforcement steel girder capable of being easily installed at low construction costs and improving the safety and durability of a structure by dispersing moment by efficiently distributing applied stress with a steel wire in order to reduce a tensile force from a central part of a steel pipe and to provide a bridge using the same. To achieve the same, the reinforcement steel girder according to the present invention is characterized by including: the steel pipe supported by a supporting member in the upper side of a bridge cap on the top of a bridge supporter and fixated and installed into the bridge; a concrete filling unit formed in the inner lower part of the steel pipe and filled with concrete; and a reinforcing member having the top surface and the underside extended in a T Shape from one side of the steel pipe to the inside and including multiple first through-holes on the underside.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a reinforced steel pipe girder,

The present invention relates to a reinforced steel pipe girder and a bridge using the same. More particularly, the present invention relates to a reinforced steel pipe girder and a bridge using the same, And a reinforced steel pipe girder capable of improving durability and a bridge using the same.

Generally, a girder is an element of an important bridge that plays a role of piercing or alternating the load such as a fixed load and a vehicle load acting on the upper part of the bridge. There are various kinds of bridges, .

Here, the steel girder is constructed so that a plurality of steel members have an I-shaped and H-shaped cross-sectional structure, and then the plurality of structures thus constructed are vertically and horizontally brached with each other to support the upper plate of the bridge.

Another technique using steel is a box-type girder, in which two steel materials are vertically erected, the steel material is horizontally fixed on the upper and lower sides thereof, The width of the bridges can be increased to support the top plate of the bridges, or the width of the bridges can be reduced by using several bridges.

These techniques are susceptible to buckling due to compressive load during the compression load due to welding of many steel materials. Therefore, it is necessary to reattach several stiffeners separately or require separate bracing, The workability is very low and there is a problem in that it is not economical due to a large consumption of materials due to the necessity of many reinforcing materials.

Also, in the case of concrete filled steel pipe girders, since the whole of the steel pipe is filled with concrete, the load acting on the bridge becomes large due to the weight of the concrete itself, which is the material to be filled, and the concrete is filled in the entire steel pipe, , All the processes must be carried out in the field, so that the construction is complicated and the stability is poor.

Accordingly, the present invention has been made to solve the above-mentioned problem, and it is an object of the present invention to provide a method of efficiently distributing a moment by distributing a working stress efficiently using a steel wire in order to reduce a tensile force generated in a central portion of a steel pipe, And which can improve the stability and durability of the structure, and a bridge using the reinforcement steel pipe girder.

In order to achieve the above object, a reinforced steel pipe girder according to the present invention comprises a steel pipe supported by a support member at the top of a bridge cap at the upper end of a bridge support and fixed to a bridge, and a concrete And a reinforcement member having an upper surface and a lower surface extending in a T-shape inward from one side of the steel pipe and having a plurality of first through holes on the lower surface.

Further, the reinforced steel pipe girder according to the present invention is characterized in that, on both sides of the steel pipe, a plurality of reinforcing plates which are erected in a triangular shape, and a rectangular auxiliary member which is integrally or individually attached to the upper portions of the plurality of reinforcing plates And a plurality of upright reinforcing plates each having a plurality of second through holes passing through a seat surface and a right side surface thereof and having a bottom surface of a plurality of the reinforcing plates attached to an inner side of the steel pipe, And the auxiliary plate has a plurality of third through holes passing through the front surface and the rear surface.

The reinforcement steel tube girder according to the present invention is characterized in that the auxiliary plate has a first steel wire support base in the shape of a cylinder having a fourth through hole at the center on the opposite side of the side where the plurality of reinforcement plates are located, A steel wire support base 410 in which a cylindrical second steel wire support base having a fifth through hole and a cylindrical third steel wire support base having a sixth through hole at the center are sequentially connected is provided corresponding to each of the plurality of third through holes And the size of the cylindrical shape from the first wire support to the third wire support is reduced.

Further, the reinforced steel pipe girder according to the present invention is characterized in that the steel pipe has one side passing through the third through-hole, the fourth through-hole, the fifth through-hole and the sixth through- Further comprising a steel wire passing through a seventh through hole formed in a triangular prismatic hanging member lying on the inner lower side of the steel pipe, the other side of the steel wire passing through the seventh through hole has a fourth through hole at the center A steel wire support base 420 in which a cylindrical steel wire support base, a cylindrical second steel wire support base having a fifth through hole at the center, and a cylindrical third steel wire support base having a sixth through hole at the center are sequentially connected, As shown in Fig.

In addition, the reinforced steel pipe girder according to the present invention is characterized in that the steel pipe further comprises a steel wire fastening member for fastening the steel wire penetrating through the plurality of sixth through holes or seventh through holes, respectively.

The reinforcement steel pipe girder according to the present invention is characterized in that the engaging member is provided by the number of the plurality of third through holes, and a plurality of the steel wires are provided in the plurality of third through holes and the plurality of sixth through holes So that they are pierced in a one-to-one correspondence.

The reinforcing steel pipe girder according to the present invention is characterized in that only one of the above-mentioned hooking members is provided, and the other sides of the plurality of the steel wires, one side of which is passed through each of the plurality of third through holes, 7 through holes.

The reinforcement steel pipe girder according to the present invention is characterized in that the reinforcement steel pipe girder according to the present invention comprises a first fastening member connected by the steel wire penetrating through an auxiliary plate on one side of the steel pipe and a second fastening member connected by the steel wire penetrating the other side of the steel pipe And the second hanging member is disposed in a staggered manner.

Further, the reinforced steel pipe girder according to the present invention is characterized in that the steel wire further comprises a steel wire pipe which is coated with the steel wire to prevent corrosion of the steel wire and to prevent noise generated when the steel wire is shaken.

The reinforcement steel pipe girder according to the present invention is characterized in that the steel pipe covered with the steel wire is filled with a lubricant for reducing friction between the steel wire and the inside of the steel pipe.

Further, a bridge using a reinforced steel pipe girder according to the present invention is characterized in that it comprises: a reinforced steel pipe girder constructed by the constitution of any one of claims 1 to 10; and a bridge cap between the bridge supporter and the bridge cap A plurality of anchor bolts inserted into the bridge supporter from a lower portion of the bridge cap to fix the bridge supporter and a lower portion of the bridge cap, and a plurality of anchor bolts surrounding the bridge cap, And a plurality of through holes into which the bolt head of the bolt head is inserted.

Further, in the bridge using the reinforced steel pipe girder according to the present invention, the upper surface of the elastic shoe is rounded downward so that the bridge cap is connected to the upper surface of the elastic shoe while maintaining elasticity.

As described above, according to the present invention, by effectively distributing the working stress by using the steel wire in order to reduce the tensile force generated at the central portion of the steel pipe through the moment dispersion, it is easy to construct, A reinforced steel pipe girder in which moments are dispersed so as to improve the stability and durability of the structure, and a bridge using the same.

1 is a perspective view showing a steel pipe of a reinforced steel pipe girder according to the present invention.
FIG. 2 is a perspective view showing a reinforcing plate combined with a reinforcing plate and an auxiliary plate mounted on a reinforced steel pipe girder according to the present invention. FIG.
3 is a perspective view showing a steel pipe and a stiffener combined with each other in a reinforced steel pipe girder according to the present invention.
4 is a perspective view of a reinforcing steel pipe girder according to the present invention in a state where a fastening member is applied.
5 is a perspective view showing a steel wire support in a reinforced steel pipe girder according to the present invention.
6 is a perspective view of a reinforcement steel pipe girder according to the present invention in which a steel wire support is applied to an auxiliary plate and a retaining member.
7 is a perspective view of a reinforced steel pipe girder according to the present invention in which a steel wire is applied.
8 is a perspective view showing a state where concrete is filled in a reinforced steel pipe girder according to the present invention.
9 is a perspective view of a reinforcing steel pipe girder according to the present invention in which a plurality of hooking members are applied.
10 is a perspective view of the reinforcement steel pipe girder according to the present invention, in which auxiliary plates are separately separated and applied.
11 is a perspective view of a reinforced steel pipe girder according to the present invention in which steel wires are applied in a one-to-one correspondence between a plurality of forging plates and a plurality of hanging members.
12 is a perspective view of a reinforced steel pipe girder according to the present invention in a state in which a box-shaped steel pipe is applied.
13 is a perspective view showing a state in which a reinforced steel pipe girder according to the present invention is installed on a bridge support.
14 is a sectional view showing a state where a reinforced steel pipe girder according to the present invention is installed on a bridge.
15 is a perspective view showing a state in which the fastening members in the reinforced steel pipe girder according to the present invention are stacked in a staggered manner.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a steel pipe of a reinforced steel pipe girder according to the present invention.

1, a reinforced steel pipe girder 1000 according to the present invention includes a steel pipe girder 1000 supported by a support member 800 on a bridge cap 920 at an upper end of a bridge support 910 and fixed to a bridge 700, A concrete filling part 230 in which concrete is filled in an inner lower part of the steel pipe 200 and an upper surface and a lower surface extending in a T shape inwardly from one side of the steel pipe 200, (210) having a plurality of first through holes (211).

As will be described later, the support member 800 is constructed such that a plurality of supports 810 are vertically provided on one support plate 820 to support the steel pipe 200.

Since the concrete charging part 230 reinforces the end face of the steel pipe 200 which is vulnerable to the compressive force by reinforcing the both sides of the steel pipe 200 with concrete in correspondence with the area where the steel pipe 200 is subjected to bending compression, 230 are preferably installed so as not to reach half the inner space of the steel pipe 200. Preferably, the concrete charging part 220 is about 2 m to 3 m inward from both sides of the steel pipe 200.

A plurality of reinforcing members 210 are provided in the concrete charging part 230 so that the concrete charged in the concrete charging part 230 has a sense of unity with the steel pipe 200. At this time, the reinforcing member 210 has a T-shaped upper surface and a lower surface, and a lower surface includes a plurality of first through holes 211. Concrete is inserted into the plurality of first through holes 211 Thereby enhancing the bonding force between the reinforcing member 210 and the concrete.

2 is a perspective view showing a reinforcing plate combined with a reinforcing plate and an auxiliary plate mounted on a reinforcing steel pipe girder according to the present invention. FIG. 3 is a perspective view of a reinforcing steel pipe girder according to the present invention, to be.

2 and 3, a reinforced steel pipe girder 1000 according to the present invention includes a plurality of reinforcing plates 310 that are erected in a triangular shape on both sides of a steel pipe 200, And a plurality of reinforcing plates 310 which are erected in a rectangular shape and which are integrally or individually attached to the upper portion of the first through holes 310, And the lower surface of the plurality of reinforcing plates 310 is formed to face the inner surface shape of the steel pipe 200 so as to be attached to the inner side of the steel pipe 200. The auxiliary plate 321 has a plurality of And a third through hole 321 of the second through hole 321.

Here, a plurality of reinforcing plates 310 are mounted on both side portions of the steel pipe 200, and the shape of the reinforcing plate 310 is upright (triangular). The reinforcing plate 310 is attached to both sides of the steel pipe 200 in correspondence with the tensile force generated at the central portion of the steel pipe 200 so as to correspond to the tensile force. To disperse the momentum that can act on both sides of the body. That is, when only a single number of the reinforcing plates 310 is mounted, the momentum of the steel pipe 200 may deviate in one direction, which may not correspond to the tensile force acting on the central portion of the steel pipe 200. The reason why the shape of the reinforcing plate 310 is upright in a triangular shape is to mount the steel wire 600 to be described later, which will be described later.

It is preferable that the reinforcing plates 310 mounted on both sides of the steel pipe 200 are installed slightly inside of both ends of the steel pipe 200, And a steel pipe cap 220 having a pipe 221 is installed. Therefore, the concerned persons can go into and out of the steel pipe 200 by using the door 221, thereby facilitating the maintenance of the fittings mounted inside the steel pipe 200.

The plurality of upright reinforcing plates 310 have a plurality of second through holes 311 penetrating through the seat surface and the right surface and the plurality of reinforcing plates 310 are attached to the inner side of the steel pipe 200 Is formed so as to face the inner surface shape of the steel pipe (200). The reason why the plurality of reinforcing plates 310 have the second through holes 311 is that when the concrete is charged as described above, the filled concrete is inserted between the second through holes 311, (310). The reason why the auxiliary plate 321 has a plurality of third through holes 321 passing through the front surface and the rear surface is that the steel wire 600 to be explained later passes through and will be described later.

5 is a perspective view showing a steel wire support in a reinforced steel pipe girder according to the present invention. FIG. 6 is a perspective view of a steel pipe support according to the present invention. FIG. 7 is a perspective view of a reinforcement steel pipe girder according to the present invention, to which a steel wire is applied. FIG. 7 is a perspective view of a reinforcement steel pipe girder in which a steel plate support is applied to an auxiliary plate and a retaining member.

4 to 7, the auxiliary plate 320 includes a cylindrical first wire support 401 having a fourth through-hole at the center on the opposite side of the side where the plurality of reinforcement plates 310 are located, A second steel wire support base 402 having a fifth through hole at the center thereof and a third steel wire support base 403 having a sixth through hole at the center are sequentially connected, And the size of the cylindrical shape from the first wire support 401 to the third wire support is reduced.

Here, the steel pipe 200 has one side passing through the third through hole 321, the fourth through hole, the fifth through hole, and the sixth through hole in order, and the other side passing through the steel pipe 200 And a steel wire 600 passing through a seventh through hole 331 formed in a triangular prism-shaped hanging member 330 lying on the inner lower side of the first through hole 331.

The other side of the steel wire 600 passing through the seventh through hole has a cylindrical first wire support base 401 having a fourth through hole at the center and a cylindrical second wire support base 401 having a fifth through hole at the center, A support base 402 and a cylindrical third wire support base 403 having a sixth through hole at the center are sequentially supported by a steel wire support base 420 connected in series.

On the other hand, the steel pipe 200 further includes a steel wire fastening member 510 for fastening the steel wire penetrating through the plurality of sixth through holes or seventh through holes, respectively.

More specifically, the steel wire supports 410 and 420 have a cylindrical first wire support 401 having a fourth through-hole at the center, and a second wire support 450 having a fifth through- And a third wire support 403 having a sixth through hole at the center and a smaller cylindrical shape than the second wire support 402. Each through hole of the steel wire support 410 and the third through hole 321 of the auxiliary plate 320 are positioned so as to correspond to each other. Therefore, each of the through holes of the wire support 410 and the third through hole 321 of the auxiliary plate 320 penetrate through the steel wire 600. The steel wire supports 410 and 420 are positioned so as to face each other with a predetermined distance therebetween. The through holes of the steel wire supports 410 and 420 are passed through both sides of the steel wire 200, And the fastening is maintained by the member 510. As a result, both sides of the steel pipe 200 correspond to the tensile force by the reinforcement 300 corresponding to the tensile force generated at the central portion of the steel pipe 200, and tightened by the steel wire tightening member 510 The reinforcing steel wire 600 serves to reinforce the force corresponding to the tensile force.

Here, the steel wire tightening member 510 tightens and tightens the steel wire 600 so as to disperse the tensile force generated at the central portion of the steel wire 200.

The steel wire 600 further includes a steel wire pipe 610 for preventing the steel wire 600 from being corroded and covering the steel wire 600 to prevent noise generated when the steel wire 600 is shaken.

It is preferable that the steel wire 600 coated with the steel wire 600 is filled with a lubricant 620 for reducing the friction between the steel wire 600 and the inside of the steel wire pipe 610. With such a lubricant, the steel wire 600 is not corroded over time, and noise generated when the steel wire 600 is shaken is prevented by the steel wire pipe 610 acting as a soundproofing wall.

It is preferable that the outer shape of the steel wire 600 is formed in a concavo-convex shape having a concave portion and a convex portion in order to increase the coupling force of the steel wire 600 covered with the steel wire pipe 610 with the lubricant 620.

Next, FIG. 8 is a perspective view of the reinforced steel pipe girder according to the present invention, in which concrete is filled.

Referring to FIG. 8, the reinforced steel pipe girder 1000 according to the present invention is filled with concrete in the concrete filling part 230.

Here, the concrete charging part 230 is installed so as not to reach a half of the inner space of the steel pipe 200. By charging the concrete in the concrete filling space as described above, the lower part of the reinforcing plate 310 is fixed to the concrete.

As a result, the lower portion of the reinforcing plate 310 is hardened together with the concrete to strongly support the reinforcing plate 310 corresponding to the tensile force acting on the central portion of the steel pipe 200, and the reinforcing plate 310, The force is applied from the both sides of the steel pipe 200 to the outside of the steel pipe 200 by the steel wire 320 passing through the third through hole 321 of the auxiliary plate 320, 200 in the direction of the arrow. Of course, in the present invention, the reinforcing plate 310 is applied to only one side of the steel pipe 200 for ease of explanation. However, the reinforcing plate 310 may be applied to the other side of the long steel pipe 200 .

The reinforcement steel pipe girder 1000 according to the present invention further includes a fastening member 321 at an inner lower portion of the steel pipe 200. The steel pipe 600 having passed through the through hole of the fastening member 321, And the opposite side of the steel wire 600 is pulled out to the outside to penetrate the through hole 321 of the auxiliary plate 320 and then to be fastened to the steel wire fastening member 510. As a result, the reinforcing steel pipe girder 1000 has the effect of dispersing the tensile force by the steel wire 600 which is tightly tightened to both sides of the reinforcing steel pipe girder 1000 with respect to the tensile force generated at the central portion. On the other hand, a part of the steel wire pipe 610 covering the steel wire 600 to be tightly tightened can be placed together with the concrete. In such a case, the steel wire 600 can be further tightened.

FIG. 9 is a perspective view of a reinforced steel pipe girder according to the present invention to which a plurality of fastening members are applied, FIG. 10 is a perspective view of the reinforced steel pipe girder according to the present invention, Is a perspective view of a reinforced steel pipe girder according to the present invention in which steel wires are applied in a one-to-one correspondence between a plurality of forging plates and a plurality of hanging members.

9, the hooking member 331 is provided by the number of the plurality of third through-holes 321, and a plurality of the steel wires 600 are connected to the plurality of third through-holes 321 and the plurality of sixth through- (330) in a one-to-one correspondence manner.

10, the other side of the plurality of steel wires 600 having only one hooking member 331 and one side of which is penetrated through the plurality of third through holes 321, Hole 331 of the first through-hole 331.

That is, according to a plurality of embodiments of the present invention,

First, one side of a plurality of steel wires 600 is respectively passed through a plurality of third through holes 321 of an auxiliary plate 320 integrally formed, and the other side of the plurality of steel wires 600 is connected to one hooking member (See FIG. 8) collectively through the seventh through hole 330 of the first through hole 331.

The second side of each of the plurality of steel wires 600 penetrates a plurality of third through holes 321 of the auxiliary plate 320 integrally formed with one side of the plurality of steel wires 600, (Refer to FIG. 9) corresponding one-to-one to the sixth through-hole 330 of the first through-hole 331.

Third, one side of a plurality of steel wires 600 is respectively passed through a plurality of third through holes 321 of an auxiliary plate 320 formed individually, and the other side of the plurality of steel wires 600 is connected to one hooking member (Refer to FIG. 10) in the seventh through hole 330 of the second through hole 331.

Fourthly, one side of a plurality of steel wires 600 is respectively passed through a plurality of third through holes 321 of an auxiliary plate 320 individually formed, and the other side of the plurality of steel wires 600 is connected to a plurality of hooking members (Refer to FIG. 11) in a one-to-one correspondence with the sixth hall-shaped hole 330 of the second hall 331.

In consideration of the shape and cost of the steel pipe 200 and the magnitude of the tensile force acting on the center of the steel pipe 200 through the four embodiments, the constructor can be constructed through the preferred embodiment among the four embodiments There is an effect.

Next, FIG. 12 is a perspective view of a reinforced steel pipe girder according to the present invention, in which a box-shaped steel pipe is applied.

The reinforced steel pipe girder 1000 to which the box-shaped steel pipe 200 'described in FIG. 12 is applied can also be applied to four embodiments as described above. In the present invention, the detailed description is omitted, The present embodiment can also be applied to a reinforced steel pipe girder 1000 using the same.

13 is a view showing a bridge support supporting a reinforced steel pipe girder in which a moment according to the present invention is dispersed, and FIG. 14 is a sectional view showing a state in which a reinforced steel pipe girder according to the present invention is installed on a bridge.

13 and 14, a bridge support 910 supporting a reinforced steel pipe girder 1000 according to the present invention includes a reinforced steel pipe girder 1000, a bridge support 910 and a bridge support 910 An elastic shoe 850 inserted between the bridge caps 920 covering the upper portion of the bridge cap 920 and a lower portion of the bridge cap 920 inserted into the bridge support 910 from the lower portion of the bridge cap 920 to fix the lower portion of the bridge cap 920 and the bridge support 910 And a flat washer 940 surrounding the lower portion of the bridge cap 920 and having a plurality of through holes into which bolt heads of a plurality of anchor bolts 930 are inserted .

It is preferable that the upper surface of the elastic shoe 850 be rounded downward so that the bridge cap 920 is connected to the upper surface of the elastic shoe 850 while maintaining elasticity. Even if the reinforcing steel pipe girder 1000 is installed on the supporting member 800 located at the upper portion of the bridge cap 920, the upper surface of the elastic shoe 850 is not in a horizontal plane but is rounded downward Therefore, the buffering effect is generated.

It is preferable that the bridge support table 910 is fixed by using a plurality of anchor bolts 930 so as to be able to absorb the impact transmitted from the bridge 700 without fixing the bridge support table 910 completely tightly. There is a risk that the bolts may be broken or cracks may be generated in the bridge supporter 910 due to the impact transmitted from the bridge 700. In order to prevent this, a plurality of anchor bolts 930 are fixed with a constant clearance distance from the bridge support 910. For this fixing, in the present invention, a flat washer 940 surrounding a lower portion of the bridge cap 920 and including a plurality of through holes into which bolt heads of a plurality of anchor bolts 930 are inserted is also fixed . It is preferable to fasten the plurality of anchor bolts 930 by tightening such that the impact can be absorbed even when the plurality of anchor bolts 930 are fixed by using the washer 940. [

In the meantime, in the present invention, a cylindrical steel tube 200 and a box-shaped steel tube have been described as an example for ease of explanation. However, the present invention is not limited to this, and the present invention is also applicable to steel tubes of various shapes.

15 is a perspective view showing a state in which the fastening members are arranged in a staggered manner in a reinforced steel pipe girder according to the present invention.

Referring to FIG. 15, another embodiment of the reinforced steel pipe girder 1000 according to the present invention is substantially the same as the reinforced steel pipe girder 1000 described above, but there are some differences in the following configuration .

The reinforcing steel pipe girder 1000 according to the present embodiment includes a first fastening member 310 connected by a steel wire 600 passing through an auxiliary plate 320 on one side of a steel pipe 200, There is a difference in that the second hooking members 320 connected by the steel wire 200 passing through the other auxiliary plate 320 are arranged in a staggered manner.

As a result, the reinforcing steel pipe girder 1000 has an effect of dispersing the tensile force by the steel wire 600 tightly tightened against the tensile force generated at the central portion. In addition, since the first fastening member and the second fastening member that tightly fasten the steel wire 600 are disposed in a staggered manner, there is an effect of dispersing momentum that may occur at both sides of the steel pipe 200. [

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

200: Steel pipe
210: reinforcing member
220: Steel pipe cap
230: Concrete charging part
300: Stiffener
310: reinforcing plate
320: auxiliary plate
331:
401: First liner support
402: Second strand support
403: Third liner support
410, 420: Steel wire support
510: Steel wire tightening member
600: Steel wire
610: Steel pipe
620: lubricant
700: Bridge
800: Support member
810: Stand
820:
850: elastic shoe
910: Bridge support
920: Bridge Cap
930: Anchor bolt
940: Washer
1000: Reinforced steel pipe girder

Claims (12)

A steel pipe supported by the support member at the upper portion of the bridge cap at the upper end of the bridge support and fixed to the bridge,
A concrete charging part in which concrete is filled in an inner lower part of the steel pipe,
And a reinforcing member having an upper surface and a lower surface extending in a T-shape inward from one side of the steel pipe and having a plurality of first through holes on the lower surface,
A plurality of reinforcing plates erected in a triangular shape on both sides of the steel pipe,
Further comprising a rectangular auxiliary plate integrally or separately attached to the upper portions of the plurality of reinforcing plates,
Wherein a plurality of upright reinforcing plates have a plurality of second through holes passing through a seat surface and a right side surface and are formed so as to face the inner surface shape of the steel pipe so that the lower surfaces of the plurality of reinforcing plates are attached to the inside of the steel pipe,
Wherein the auxiliary plate has a plurality of third through holes passing through the front surface and the rear surface. delete The method according to claim 1,
Wherein the auxiliary plate comprises:
A second steel wire support base in the shape of a cylinder having a fourth through hole in the center at a side opposite to the side where the plurality of reinforcing plates are located, a second steel wire support base in the form of a cylinder having a fifth through hole at the center, Further comprising a plurality of third through-holes corresponding to the plurality of third through-holes, wherein the plurality of third through-
And the size of the cylindrical shape from the first steel wire support to the third steel wire support is reduced. The method of claim 3,
Wherein the steel pipe has a triangular prismatic shape in which one side passes through the third through hole, the fourth through hole, the fifth through hole, and the sixth through hole and the other side lies in the lower side of the steel pipe Through the seventh through hole formed in the engaging member of the engaging member,
The other side of the steel wire passing through the seventh through hole has a cylindrical first wire support base having a fourth through hole at the center, a cylindrical second wire support base having a fifth through hole at the center, And a third steel wire support bar having a through hole is supported by a steel wire support base 420 which is sequentially connected. 5. The method of claim 4,
Wherein the steel pipe further comprises a steel wire fastening member for fastening the steel wire passing through the plurality of sixth through holes or seventh through holes, respectively. 5. The method of claim 4,
Wherein the hooking member is provided by the number of the plurality of third through holes,
And a plurality of the steel wires are positioned so as to pass through the plurality of third through holes and the plurality of sixth through holes in a one-to-one correspondence manner. 5. The method of claim 4,
Wherein only one of the hooking members is provided,
And the other sides of the plurality of the steel wires passing through the plurality of third through holes at one side are passed through the seventh through holes of one of the hanging members. 5. The method of claim 4,
The first fastening member connected by the steel wire penetrating the one side auxiliary plate of the steel pipe and the second fastening member connected by the steel wire penetrating the other side auxiliary plate of the steel pipe are arranged in a staggered manner A reinforced steel pipe girder characterized by. 5. The method of claim 4,
Wherein the steel wire further comprises a steel wire pipe which is coated with the steel wire to prevent corrosion of the steel wire and to prevent noise generated when the steel wire is shaken. 10. The method of claim 9,
And a lubricant for reducing the friction between the steel wire and the inside of the steel wire pipe is filled in the steel wire pipe coated with the steel wire. A reinforced steel pipe girder comprising: a reinforcing steel pipe girder constructed by the constitution of any one of claims 1 and 3 to 10;
An elastic shoe inserted between the bridge supporter and a bridge cap covering an upper portion of the bridge supporter,
A plurality of anchor bolts inserted into the bridge support from a lower portion of the bridge cap to fix the bridge support to the lower portion of the bridge cap,
And a plurality of through-holes surrounding the lower portion of the bridge cap and into which bolt heads of the plurality of anchor bolts are inserted, the flat washer including a flat washer. 12. The method of claim 11,
Wherein the upper surface of the elastic shoe is rounded downward so that the bridge cap is connected to the upper surface of the elastic shoe while maintaining elasticity.

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