KR102409255B1 - Bridge structure and construction method thereof - Google Patents

Abstract

The present invention is a truss structure disposed on a neighboring pier and comprising a lower member, a vertical member, an upper member and an inclined member; and a compression member disposed on the upper member, the central region of which is deformed upward by receiving a compressive force in the longitudinal direction, wherein the central region of the compression member applies upward force upwards, and a method of constructing the same. start

Description

Bridge structure and its construction method {BRIDGE STRUCTURE AND CONSTRUCTION METHOD THEREOF}

The present invention relates to a bridge structure and a construction method thereof.

In general, a footbridge is a bridge that is limited to the passage of light vehicles such as pedestrians or bicycles depending on the purpose of use, and is also called a sidewalk bridge. Such footbridges are constructed for the main purpose of moving vehicles on existing bridges or roads, and are installed for human walking.

As a prior art related to such a footbridge, the temporary footing for a new-contracted bridge of Republic of Korea Patent Publication No. 10-0918828 includes a bracket in which a plurality of bridges are installed in a “L” shape along the longitudinal direction of the curb at the outer edge of the curb, and each H-beams mounted on the upper surface of the bracket so as to extend outwardly of the bridge, a mounting plate mounted on the side of the bracket to support the lower part of each H-beam, and a square tube mounted in multiple rows at right angles to the upper surface of the H-beams And, a wooden board mounted in multiple rows in a right angle direction on the upper surface of each pipe, a pedestrian railing mounted on the extension end of the H-beams, and a square pipe installed at the connection part of the bridge top plate to be spaced apart by a distance apart from each other in this spaced part Disclosed is that including an expansion joint to be installed. The prior art has a complicated structure and many components, so there is a problem in that the amount of work and installation cost according to the construction may increase.

Therefore, the prior art has a problem in that there are many components, the structure is complicated, the weight is large, or the preparation for elasticity according to temperature change is insufficient, and the amount of work and cost for installation are increased.

An object of the present invention is to provide a bridge structure capable of applying a compressive force to a compressive member in advance to form a camber, and to apply an upward force to an upper member through this, and a construction method thereof.

On the other hand, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

The bridge structure according to an embodiment of the present invention is disposed on the neighboring piers and includes a lower member, a vertical member, a truss structure including an upper member and a slope member; and a compression member disposed on the lower member, the central region of which is deformed upward by receiving compressive force in the longitudinal direction, wherein the central region of the compression member may apply upward force upward.

In addition, both ends of the compression member may have a truss structure fixed to the lower member at the upper portion of the pier.

In addition, a central region of the compression member may be in contact with the upper member, and a central region of the upper member in contact with the compression member may protrude higher than an end region of the upper member.

In addition, when a working load is applied, the central region and the end region of the upper member may form a flat surface.

Also, a width of the inclined member may be smaller than a width of the vertical member.

On the other hand, the construction method of a bridge structure according to an embodiment of the present invention comprises the steps of arranging a lower member, a vertical member and an upper member on a neighboring pier; disposing a compression member on the lower member; applying a compressive force such that the central region of the compressing member is deformed upward; and disposing a plurality of inclined members to connect the lower member and the upper member.

In addition, in the step of applying the compressive force, the central region of the compression member abuts against the upper member to apply an upward force to the upper member, and in the upper member, the central region in contact with the compressive member is directed upwardly than the end region can protrude.

In addition, in the step of applying the compressive force, after the central region is deformed upward, both ends of the compression member may be fixed to the lower member at the upper part of the pier.

Also, in the disposing of the inclined member, a width of the inclined member may be smaller than a width of the vertical member.

On the other hand, the construction method of a bridge structure according to another embodiment of the present invention comprises the steps of arranging a lower member and a compression member on a neighboring pier; applying a compressive force such that the central region of the compressing member is deformed upward; and disposing an upper member on the compression member.

According to an embodiment of the present invention, it is possible to form camber by applying a compressive force to the compressing member in advance, and to apply an upward force to the upper member through this.

On the other hand, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

1 is a front view showing a bridge structure according to an embodiment of the present invention,
2 is a perspective view showing a bridge structure according to an embodiment of the present invention;
3 is a front view showing the bridge structure after a working load is applied;
4 is a flowchart illustrating a method of constructing a bridge structure according to an embodiment of the present invention;
5 to 7 are front views for sequentially explaining the construction method of the bridge structure according to an embodiment of the present invention,
8 is a front view for explaining a compressive force application process in a construction method of a bridge structure according to another embodiment of the present invention;
9 is a front view showing a bridge structure according to another embodiment of the present invention,
10 is a flowchart showing a construction method of a bridge structure according to another embodiment of the present invention,
11 to 14 are front views for sequentially explaining a construction method of a bridge structure according to another embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes of elements in the drawings are exaggerated to emphasize a clearer description.

The configuration of the invention for clarifying the solution to the problem to be solved by the present invention will be described in detail with reference to the accompanying drawings based on a preferred embodiment of the present invention, but the same in assigning reference numbers to the components of the drawings For the components, even if they are on different drawings, the same reference numbers are given, and it is noted in advance that the components of other drawings can be cited when necessary in the description of the drawings.

1 is a front view showing a bridge structure according to an embodiment of the present invention, FIG. 2 is a perspective view showing a bridge structure according to an embodiment of the present invention, and FIG. 3 is a front view showing the bridge structure after a working load is applied to be.

First, referring to FIGS. 1 and 2 , the bridge structure according to an embodiment of the present invention includes a lower member 110 , a vertical member 120 , an upper member 130 , a compression member 140 and an inclined member 150 . may include

Here, the lower member 110 , the vertical member 120 , the upper member 130 , and the inclined member 150 may be configured as a general truss structure, and may be disposed on the adjacent pier 10 .

The lower member 110 may be fixedly installed on the adjacent pier 10, and may be composed of a beam and a crossbeam connecting the beam, and in another example, may be composed of a plate shape.

On the other hand, the lower material 110 may be implemented by selecting any one of an I-beam steel, a square steel pipe, and a round steel pipe, and when a square steel pipe or a round steel pipe is used, a filler such as concrete or synthetic resin is inserted into the inner space. , can increase the rigidity.

The vertical member 120 is vertically connected from both side ends of the lower member 110 to the top, and is preferably composed of a pair of rods.

Here, the vertical member 120 connects both ends of the lower member 110 and the upper member 130 , and may have a preset first width.

The upper member 130 may be installed on the vertical member 120 through the vertical member 120 .

The upper member 130 may function to directly receive a load used by a light vehicle such as a pedestrian or a bicycle.

The compression member 140 may receive a compressive force in the transverse direction (lengthwise direction) to form a convex camber in the upper direction, and through this, an upward force F1 may be applied to the upper member 130 .

The compression member 140 may be implemented by selecting any one of an I-beam steel, a square steel pipe, and a round steel pipe. In addition. After receiving the compressive force, the compression member 140 may insert a filler such as concrete or synthetic resin into the inner space of the square steel pipe or the round steel pipe to increase rigidity.

Here, the compression member 140 may include an end region 141 fixed to the lower member 110 at the upper portion of the pier 10 and a central region 142 that is protruded and deformed upward by a lateral compression force.

Both end regions 141 may be positioned on the pier 10 and firmly fixed to the pier 10 . Here, it is preferable that both end regions 141 are fixed to the lower member 110 and the pier 10 through a fastening member (not shown) that passes through the lower member 110 and is fastened to the pier 10 .

Meanwhile, although the compression member 140 is illustrated as having a pair of rod shapes in FIG. 2 , the compression member 140 may be formed in a single plate shape.

Here, the central region 142 of the compression member 140 may contact the lower surface of the upper member 130 to provide an upward force F1 to the upper member 130 . Through this, the central region 132 of the upper member 130 may form a camber protruding upward.

Here, the upper member 130 has an end region 131 fixed to the lower member 120 through the vertical member 120 and a central region ( 132) may be included.

That is, a portion of the upper surface of the end region 131 of the upper member 130 forms the flat surface 1 , and the height may gradually increase from the end region 131 to the center region 132 .

Here, the protrusion height of the camber of the central region 132 of the upper member 130 may be changed according to the design.

On the other hand, referring to FIG. 3 , due to the movement of a light vehicle such as a pedestrian or a bicycle and the use load F2 caused by the load of the upper material 130 , the central region 132 , which forms the camber, exerts a force in the lower direction. As it was initially designed, the end area 131 and the center area 132 may form the same flat surface ('1' in FIG. 1).

Here, the upward force F1 by the compression member 130 may be continuously applied to the upper member 130 and may correspond to the used load F2, so that the upper member 130 forms a flat surface after A flat surface can be maintained without forming a reverse camber in the downward direction.

The inclined member 150 may connect the lower member 110 and the upper member 130 .

Here, by supporting the vertical load by the axial force of the vertical member 120 and the inclined member 150, the bending moment and shear force are not generated, so that the bridge is not dull and has a sharp shape while maintaining a long span.

Here, the connection between the upper member 130 and the inclined member 150 and the lower member 110 and the inclined member 150 may be directly connected by welding or the like, but via a connection plate (not shown) It is preferable to connect

Meanwhile, the upper member 130 is provided with an upward force F1 through the compression member 140 , and is composed of the lower member 110 , the vertical member 120 , the upper member 130 , and the compression member 140 . The structure may be structurally stable. Accordingly, the inclined member 150 does not need to be thicker than necessary and may have a second width smaller than the first width.

Through this, the inclined member 150 may be weighted.

Hereinafter, a method of constructing a bridge structure according to the present invention will be described with reference to FIGS. 4 to 8 .

4 is a flowchart illustrating a method of constructing a bridge structure according to an embodiment of the present invention, and FIGS. 5 to 7 are front views sequentially illustrating a method of constructing a bridge structure according to an embodiment of the present invention.

First, referring to FIG. 4 , the construction method of a bridge structure according to an embodiment of the present invention includes an upper member and a lower member arrangement step (S10), a compression member arrangement step (S20), a compressive force application step (S30), and an inclined member It may include an arrangement step (S40).

Referring to FIG. 5 , in the upper member and lower member arrangement step S10 , the lower member 110 , the vertical member 120 and the upper member 130 are installed on the neighboring pier 10 , and the skeleton of the bridge structure to form

Here, the lower member 110 , the vertical member 120 and the upper member 130a have the same configuration as the above-described lower member 110 , the vertical member 120 and the upper member 130 , and thus a detailed description thereof will be omitted below. do. The upper member 130a has a shape before being deformed by the upward force of the compression member 140 .

Thereafter, referring to FIG. 6 , the compression member 140a is disposed on the lower member 110 in the step of disposing the compression member ( S20 ). Here, the compression member 140a is the compression member 140 having a shape before being deformed.

Meanwhile, in the compression member disposing step ( S20 ), one end area 141 of both end areas 141 of the compression member 140a may be fixed to the lower member 110 on the pier 10 . Here, the compression member 140a may be fixed through welding or a separate fastening member (not shown).

Also, referring to FIG. 6 , in the compressing force application step S30 , compressive forces F11 and F12 may be applied to the compressive member 140a in the transverse direction.

Here, the fixed end region 141 may apply a compressive force F11 in response to the compressive force F12 applied as it is fixed to the lower member 110 on the pier 10 .

Through this, the central region 142 of the compression member 140 may form a camber of a convex shape in an upward direction, and may provide an upward force F1 in an upward direction.

In this case, the central region 142 of the compression member 140 may push the central region 132 of the upper member 130a upward to form a camber protruding upward from the central region 132 .

That is, the shape of the upper member 130a before deformation may be changed to the upper member 130 having a camber in the central region 132 by the upward force F1 of the compression member 140 .

Thereafter, after the compressive forces F11 and F12 in the transverse direction are removed, each end region 141 may be fixed to the lower member 110 on the pier 10 . Here, the end region 141 may be fixed through welding or a separate fastening member (not shown).

Thereafter, referring to FIG. 7 , the inclined member 150 may be disposed to connect the lower member 110 and the upper member 130 in the step of disposing the inclined member ( S40 ).

Here, the connection between the upper member 130 and the inclined member 150 and the lower member 110 and the inclined member 150 may be directly connected by welding or the like, but via a connection plate (not shown) It is preferable to connect

Meanwhile, referring to FIG. 8 , the compression member 140 may receive a compressive force F20 through a separate tension member 20 .

8 is a front view for explaining a compressive force application process in a method of constructing a bridge structure according to another embodiment of the present invention.

8, in the compression member 140a before the shape is deformed, the tension member 20 is fixed through the fixing member 30, and in the compressive force application step (S30), the tension member 20 is pulled in the lateral direction, A compressive force F20 may be applied to the compressing member 140a in a transverse direction.

In this case, the central region 142 of the compression member 140 may push the central region 132 of the upper member 130a upward to form a camber protruding upward from the central region 132 .

That is, the shape of the upper member 130a before deformation may be changed to the upper member 130 having a camber in the central region 132 by the upward force F1 of the compression member 140 .

Thereafter, after the compressive force F20 in the transverse direction is removed, each end region 141 may be fixed to the lower member 110 on the pier 10 . Here, the end region 141 may be fixed through welding or a separate fastening member (not shown).

Hereinafter, a bridge structure according to another embodiment of the present invention will be described with reference to FIG. 9 .

9 is a front view showing a bridge structure according to another embodiment of the present invention.

Referring to FIG. 9 , the bridge structure according to another embodiment of the present invention may include a lower member 210 , a vertical member 220 , an upper member (not shown), a compression member 230 and an inclined member 250 . can

Here, the lower member 210 , the vertical member 220 , the compression member 230 , and the inclined member 250 may be configured as a general arcuate bridge structure, and may be disposed on the neighboring piers 10 .

The lower member 210 may be fixedly installed on the adjacent pier 10, and is preferably configured in a plate shape.

On the other hand, the lower material 210 may be implemented by selecting any one of an I-beam steel, a square steel pipe, and a round steel pipe, and when a square steel pipe or a round steel pipe is used, a filler such as concrete or synthetic resin is inserted into the inner space. , can increase the rigidity.

The vertical member 220 is vertically connected from both side ends of the lower member 210 to the top, and is preferably composed of a pair of rods.

Here, the vertical member 220 connects both ends of the lower member 210 and the upper member (not shown), and may have a preset first width.

An upper member (not shown) may be installed on the compression member 230 according to the shape of the compression member 230 .

The upper member (not shown) may function to substantially directly receive a working load by a light vehicle such as a pedestrian or a bicycle.

The compression member 230 may receive a compressive force in the transverse direction (longitudinal direction) to form a convex camber in the upper direction, and through this, an upward force F1 may be applied to the upper member (not shown).

The compression member 230 may be implemented by selecting any one of an I-beam steel, a square steel pipe, and a round steel pipe. In addition. After receiving the compressive force, the compression member 230 may insert a filler such as concrete or synthetic resin into the inner space of a square steel pipe or a round steel pipe to increase rigidity.

Here, the compression member 230 may include an end region fixed to the lower member 210 in the upper portion of the pier 10 and a central region protrudingly deformed upward by a lateral compression force.

Both end regions are located on the pier 10 and can be firmly fixed to the pier 10 . Here, it is preferable that both end regions 241 are fixed to the lower member 210 and the pier 10 through a fastening member (not shown) that penetrates through the lower member 210 and is fastened to the pier 10 .

That is, a portion of the upper surface of the end region 231 of the upper member (not shown) forms the flat surface 2 , and the height may gradually increase from the end region 231 to the center region 232 .

Here, the protrusion height of the camber of the central region of the compression member 230 may be changed according to the design.

The inclined member 250 may connect the lower member 210 and the compression member 230 .

Here, by supporting the vertical load with the axial force of the vertical member 220 and the inclined member 250, the bending moment and shear force are not generated, so that the bridge is not dull and has a sharp shape while maintaining a long span.

Here, the connection between the compression member 230 and the inclined member 250 and the lower member 210 and the inclined member 250 may be directly connected by welding or the like, but via a connection plate (not shown). It is preferable to connect

On the other hand, the compression member 230 maintains the upward force F1, so that the structure consisting of the lower member 210, the vertical member 220, the upper member (not shown) and the compression member 230 is structurally stable. can Accordingly, the inclined member 250 does not need to be thicker than necessary and may have a second width smaller than the first width.

Through this, the inclined member 250 may be weighted.

Hereinafter, a method of constructing a bridge structure according to another embodiment of the present invention will be described with reference to FIGS. 10 to 14 .

10 is a flowchart illustrating a construction method of a bridge structure according to another embodiment of the present invention, and FIGS. 11 to 14 are front views for sequentially explaining a construction method of a bridge structure according to another embodiment of the present invention. .

First, referring to FIG. 10 , the construction method of a bridge structure according to another embodiment of the present invention includes a lower member and a compressive member arrangement step (S110), a compressive force application step (S120) and an upper member arrangement step (S130). can do.

Referring to FIG. 11 , in the step of disposing the lower member and the compression member ( S110 ), the compression member 230 is disposed on the adjacent lower member 210 to proceed with construction preparation.

Here, the lower member 210, the vertical member 220 and the upper member (not shown)) have the same configuration as the above-described lower member 210, the vertical member 220 and the upper member (not shown), so detailed below A description is omitted.

That is, in the step of disposing the lower member and the compression member ( S110 ), the compression member 230a is disposed on the lower member 210 . Here, the compression member 230a is the compression member 230 having a shape before being deformed.

Meanwhile, in the step of disposing the lower material and the compression member ( S110 ), one end area among both end areas 241 of the compression member 230a may be fixed on the lower material 210 through the vertical member 220 . Here, the compression member 230a may be fixed through welding or a separate fastening member (not shown).

Also, referring to FIG. 12 , in the compressing force application step S120 , a compressive force may be applied to the compressive member 230a in the transverse direction.

One side of the compression member 230a may be fixed on the lower material 210 , and the fixing member 220 and the compression force applying unit 50 may be installed on the other side. Here, the compressive force applying unit 50 may be implemented as a hydraulic cylinder or the like.

However, the present invention is not specifically limited thereto.

Here, as the fixed one end region is fixed to the lower material 210 , a compressive force may be applied from one side in response to the compressive force applied by the compressive force applying unit 50 .

Through this, the central region of the compression member 230 may form a camber having a convex shape in an upward direction, and may provide an upward force F1 in an upward direction.

Then, referring to FIG. 13 , after the compressive force in the lateral direction is removed, both end regions may be fixed on the lower material 210 . Here, the end region 241 may be fixed through welding or a separate fastening member (not shown).

Thereafter, referring to FIG. 14 , in the upper member disposing step S130 , an upper member (not shown) is disposed on the compression member 230 , and an inclined member ( 240) can be placed.

Here, the connection of the compression member 230 and the inclined member 240 and the connection of the lower member 210 and the inclined member 240 may be directly connected by a method such as welding, but via a connection plate (not shown) as a medium. It is preferable to connect

Through this, the bridge structure shown in FIG. 9 can be completed.

The above detailed description is illustrative of the present invention. In addition, the above description shows and describes preferred embodiments of the present invention, and the present invention can be used in various other combinations, modifications, and environments. That is, changes or modifications are possible within the scope of the concept of the invention disclosed herein, the scope equivalent to the written disclosure, and/or within the scope of skill or knowledge in the art. The written embodiment describes the best state for implementing the technical idea of the present invention, and various changes required in the specific application field and use of the present invention are possible. Therefore, the detailed description of the present invention is not intended to limit the present invention to the disclosed embodiments. Also, the appended claims should be construed as including other embodiments.

110, 210: lower material
120, 220: vertical member
130: upper material
140, 230: compression member
150, 240: inclined member

Claims (10)

a truss structure disposed on a neighboring pier and comprising a lower member, a vertical member, an upper member and an inclined member; and
It is disposed on the lower member, and includes a compression member whose central region is deformed upward by applying a compressive force in the longitudinal direction,
The central region of the compression member applies an upward force upward,
The upper member includes an end region fixed to the lower member through the vertical member and a central region protrudingly deformed upward by the upward force of the compression member,
When a working load is applied, the central region and the end region of the upper member form a flat surface.
The method of claim 1,
Both ends of the compression member are fixed to the lower member in the upper part of the bridge structure.
delete delete The method of claim 1,
The width of the inclined member is smaller than the width of the vertical member of the bridge structure.
disposing the lower member, the vertical member and the upper member on the neighboring piers;
disposing a compression member on the lower member;
applying a compressive force so that the central region of the compressing member is deformed upwardly; and
arranging a plurality of inclined members to connect the lower member and the upper member,
In the step of applying the compressive force,
The central region of the compression member is in contact with the upper member to apply an upward force to the upper member,
In the upper member, a central region in contact with the compression member protrudes upward than an end region,
The upper member includes an end region fixed to the lower member through the vertical member and a central region protrudingly deformed upward by the upward force of the compression member,
When a working load is applied, the central region and the end region of the upper member form a flat surface.
delete delete 7. The method of claim 6,
In the step of disposing the inclined member,
The width of the inclined member is smaller than the width of the vertical member construction method of the bridge structure.
disposing a lower member and a compression member on the adjacent piers;
applying a compressive force so that the central region of the compressing member is deformed upwardly; and
disposing a supernatant on the compression member;
In the upper member, a central region in contact with the compression member protrudes upward than an end region,
The upper member includes an end region fixed to the lower member through the vertical member and a central region protrudingly deformed upward by the upward force of the compression member,
When a working load is applied, the central region and the end region of the upper member form a flat surface.

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