KR101164935B1 - Bridge for bicycle - Google Patents

Abstract

PURPOSE: A bridge for a bicycle is provided to improve construction performance and cost-efficiency by reducing the quantity of precast piles which constitute a pier. CONSTITUTION: A bridge for a bicycle comprises multiple precast piles(14), head supports(16), steel pipe girders(22), multiple horizontal brackets(24), and a bottom part. The precast piles are installed along a bridge to be separated from each other. The head supports are fixed to the heads of the precast piles. Both ends of the steel pipe girders are supported to the head supports of the adjacent precast piles. The horizontal brackets are installed along the longitudinal direction of the steel pipe girders to be separated from each other. The bottom part is formed on the top of the horizontal bracket along the longitudinal direction of the bridge.

Description

Bridge for bicycle}

The present invention relates to a bicycle traffic bridge. More particularly, the present invention relates to a bicycle traffic bridge capable of reducing the number of ready-made piles forming a pier by extending a bridge of a bridge.

Recently, the use of bicycles is increasing due to the concern for environmental pollution and the increase in the leisure activity population. In the case of riverside roads, embankment roads where slopes are formed, and mountainous roads, there is no road that can carry people or bicycles, The users are very uncomfortable and are exposed to the risk of traffic accidents and crashes.

In order to construct pedestrian roads and bicycle roads on riverside slopes and slope roads, some of the existing roads are changed to pedestrians or bicycle corridors. In this case, existing roads are narrowed and users are very uncomfortable and there is a risk of traffic accidents.

Particularly, in the case of a bridge, when a part of the bridge is changed to a walkway or a bicycle road, the width of the road is limited. Therefore, it is necessary to construct a separate bicycle passage bridge.

1 is a cross-sectional view of a bicycle traveling bridge according to the prior art. The bicycle traveling bridge according to the related art includes a base pile 10 installed in the ground, a steel material coping bracket 20 installed to cover the upper portion of the base pile 10, and a steel material coping bracket 20, A plurality of H beams are fixed to the upper surface of the steel coping bracket 20 by means of a high tension bolt, A bottom plate 50 provided on the upper surface of the mold 40 and composed of a concrete panel or a wood deck and a handrail 60 fixedly installed at both sides of the mold 40 at a predetermined height and level.

The bicycle traffic bridge according to the related art is formed by fixing a steel coping bracket 20 to an upper portion of a conventional pile 10 to form a T-shaped bridge pier, and forming a mold 40 of a bridge upper structure with H beams thereon to be.

However, since the bridge for bicycle traffic according to the prior art constitutes the bridge of the bridge by the H beam, the bridge of the bridge is shortened, and the interval between the piles constituting the bridge is narrowed. Accordingly, There is a problem that the number of piles increases.

In addition, since a mold is constituted by a plurality of H beams, there is a problem that a bridge is complicated and a beauty and workability are deteriorated.

Korean Registered Patent No. 10-0960891 (June 4, 2010)

The present invention can provide a bicycle traffic bridge capable of reducing the number of ready-made piles constituting a pier by extending a bridge of a bridge.

Furthermore, since a single steel pipe constitutes a bridge of a bridge, it is possible to provide a bicycle passage bridge which is simple and can improve workability.

According to an aspect of the present invention, there is provided a bicycle accessory bridge comprising: a plurality of ready-made piles spaced from each other along a linear shape of the bridge; A tofu point fixed to the head of the foundry pile; A steel pipe girder having opposite ends supported by the tofu points of the adjacent piles; A plurality of lateral brackets spaced from each other along the longitudinal direction of the steel pipe girder and extending transversely at a side end of the steel pipe girder; And a bottom portion formed on the upper portion of the transverse bracket along the longitudinal direction of the bridge to provide a traveling path.

Wherein the bicycle traffic bridge comprises: a pair of fixing portions respectively coupled to both inner ends of the pipe of the steel pipe girder; The apparatus may further include a tension member having one end fixed to one of the pair of fixing units and the other end fixed to the other one of the pair of fixing units to introduce a prestress into the steel pipe girder.

The fusing unit may include: a fusing plate that is laterally coupled to the inside of the pipe of the steel pipe girder; And

And a diaphragm coupled between the fixing plate and the inner surface of the tube of the steel pipe girder. The tension member may be fixed to the fixing plate so as to be positioned at a lower portion of a center of a cross section of the steel pipe.

The tensile material may be any one of a PS steel bar, a PS steel wire, and a PS wire.

Wherein the lateral bracket comprises: a pair of webs coupled to an outer circumferential surface of the steel pipe girder so as to extend transversely at both side ends of the steel pipe girder; A pair of lower flanges extending transversely at both side ends of the steel pipe girder and joined to the lower ends of the pair of webs along the longitudinal direction; And an upper flange coupled longitudinally to the upper end of the pair of webs so as to extend from the upper end of one of the pair of webs to the upper end of the other of the pair of webs.

The transverse bracket may further include a plurality of studs projecting in a direction perpendicular to the upper surface of the upper flange.

The bottom portion includes a deck plate installed to support both ends of the upper flange in the throttle direction; And a concrete pavement packaged on the deck plate and the upper flange.

The tofu point includes a cap cap coupled to the head of the preformed pile; And a head plate horizontally coupled to the top of the head cap.

Both ends of the steel pipe girder may be supported at the tofu point through a pair of girder points respectively coupled to lower portions of both ends of the steel pipe girder, A pair of girder plates, and one of the pair of girder plates is formed with a fastening hole, and the other one of the pair of girder plates is formed with a slot in a throttling direction.

The bottom portion includes a plurality of rows of joists coupled to the lateral brackets in the throttling direction; And a wooden bottom plate coupled to the upper portion of the joists in a direction perpendicular to the joists.

According to an embodiment of the present invention, it is possible to reduce the number of ready-made piles by extending the bridge of the bridge, thereby improving the workability and economy.

In addition, since a single steel pipe constitutes a bridge of a bridge, the bridge can be simplified and the workability can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of a bicycle traveling bridge according to the prior art; Fig.
2 is a partial perspective view of a bicycle traveling bridge according to an embodiment of the present invention;
3 is a front view of a bicycle traveling bridge according to an embodiment of the present invention;
4 is a plan view of a bicycle traveling bridge according to an embodiment of the present invention;
5 is a perspective view of a steel pipe girder of a bicycle traveling bridge according to an embodiment of the present invention.
6 is a plan view of a head portion of a bicycle traveling bridge according to an embodiment of the present invention;
7 is a plan view of a girder point of a bicycle traveling bridge according to an embodiment of the present invention;

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.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a bicycle traveling bridge according to the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components, The description will be omitted.

FIG. 2 is a partial perspective view of a bicycle traveling bridge according to an embodiment of the present invention, FIG. 3 is a front view of a bicycle traveling bridge according to an embodiment of the present invention, and FIG. Fig. 5 is a perspective view of a steel pipe girder of a bicycle traveling bridge according to an embodiment of the present invention. Fig. FIG. 6 is a plan view of a head portion of a bicycle traveling bridge according to an embodiment of the present invention, and FIG. 7 is a plan view of a girder portion of a bicycle traveling bridge according to an embodiment of the present invention.

1 to 7, an upper structure 11, a ground 12, an established pile 14, a head point 16, a head cap 18, a head plate 20, a steel pipe girder 22, The transverse bracket 24, web 26, lower flange 28, upper flange 30, girder point 32, girder plate 34, bottom 35, deck plate 36, A fixing member 50, a fixing plate 52, a diaphragm 54, a PS steel bar 56, A fixing bolt 58, and a tension member 60 are shown.

The bicycle traveling bridge according to the present embodiment includes a plurality of ready-made piles 14 spaced from each other along a linear shape of the bridge; A tofu point (16) fixed to the head of the ready-made pile (14); A steel pipe girder (22) having both ends supported by the tofu point (16) of the adjacent piles (14); A plurality of lateral brackets (24) spaced from each other along the longitudinal direction of the steel pipe girder (22) and extending transversely at a side end of the steel pipe girder (22); And a bottom portion (35) formed on the upper portion of the transverse bracket (24) along the longitudinal direction of the bridge so as to provide a traveling path so that the number of the existing piles (14) And a single steel pipe constitutes the bridge of the bridge, so that the bridge can be simplified and the workability can be improved.

The bicycle traffic bridge according to the present embodiment means a small bridge having a small operating load that can be moved by a pedestrian or a bicycle.

The existing piles 14 are spaced apart from each other on the ground 12 along the linear shape of the bicycle passing bridges to be constructed. The foundation piles 14 constitute bridge bridges of the bicycle traffic bridges and the adjacent foundation piles 14 are both points of the steel pipe girder 22 to be described later.

The bicycle traveling bridge according to the present embodiment completes the linearization of the entire bridge by continuously installing a plurality of steel pipe girders 22 on the foundation pile 14 adjacent to each other in a simple beam form.

The prepared pile 14 is a pile manufactured in advance at a factory and includes a PHC pile, a steel pipe pile, an H pile, etc., and is installed perpendicularly to the ground 12 by piling or embedding.

The tofu point 16 is installed on the head of the foundation peg 14 to support the end of the steel pipe girder 22. [ When the foundation pile 14 is installed on the ground 12, the upper end of the foundation pile 14 is cut according to the height of the bridges to be constructed and the head of the foundation pile 14 is arranged. The tofu point 16 is coupled.

The tofu point 16 according to the present embodiment includes a head cap 18 coupled to the head of the constructed pile 14 and a head plate 20 coupled horizontally to the top of the head cap 18. [ . A vertical stiffener is coupled between the lower end of the head plate 20 and the outer surface of the head cap 18 to reinforce the rigidity of the head point 16. [ End portions of two steel pipe girders 22 adjacent to each other are supported at one toe point 16 coupled to the head of the constructed pile 14. [

Both ends of the steel pipe girder 22 are supported by the both head portions 16 of the adjacent piles 14. The steel pipe girder 22 is in the form of a pipe made of steel. In this embodiment, a round steel pipe having a circular section is used as the steel pipe girder 22.

The steel pipe girder 22 supports the load acting in the vertical direction with respect to the throttling axis and transmits the load to the piling base 14 constituting the pier. In this embodiment, a single girder in the form of a steel pipe is used to support the load acting on the upper part of the bridge and to transmit the load to the foundation pile 14. This makes it possible to simplify the upper structure of the bicycle traveling bridge and extend the bridge span to reduce the number of installed piles 14 constituting the piers.

On the other hand, a prestress is introduced into the steel pipe girder 22 in the direction opposite to the working load in order to reduce the number of the installed piles 14 that occupy a large proportion of the construction cost of the bicycle traveling bridge by extending the bridge of the bridge .

The tension member 60 is pulled to pull the tension member 60 against the fixing unit 50 provided at both ends of the pipe of the steel pipe girder 22, So that a prestress can be introduced into the steel pipe girder 22.

The fixing unit 50 according to the present embodiment includes a fixing plate 52 and a diaphragm 52 which are coupled between the fixing plate 52 and the inner surface of the pipe of the steel pipe girder 22, (54) (diaphragm).

The fusing plate 52 is laterally coupled to the inside of the pipe of the steel pipe girder 22 and a diaphragm 54 may be provided between the fusing plate 52 and the inner surface of the pipe to reinforce the fusing plate 52.

In order to introduce the prestress in the opposite direction to the working load, the tension member 60 is fixed to the fusing plate 52 so as to be positioned at the lower portion of the center of the cross section of the steel pipe girder 22. [ A tension is applied to the tension member 60 at the lower end of the center of the section of the steel pipe girder 22 so that a compression force in the axial direction and a moment in the upward direction are generated in the steel pipe girder 22, ) Can be canceled and the bridge of the bridge can be extended.

In this embodiment, a PS steel rod 56 is used as the tension member 60. Both ends of the PS steel rod 56 are fixed to the through holes of the fixing plate 52 provided at both ends of the inner side of the pipe of the steel pipe girder 22 A prestress can be introduced into the steel pipe girder 22 by inserting the tension member 60 into the tension member 60 and screwing the fixing bolts 58 to both ends of the tension member 60 and tightening the fixing bolt 58. [ As the tensile member 60, a PS steel bar 56, a PS steel wire, a PS wire and the like can be used.

Both ends of the steel pipe girder 22 can be supported at the tofu point 16 through a pair of girder points 32 respectively coupled to lower portions of both ends of the steel pipe girder 22. [ The girder point 32 has a pair of girder plates 34 horizontally coupled to both lower ends of the steel pipe girder 22 and a connecting stiffener is provided between the girder plate 34 and the steel pipe girder 22. [ Can be combined.

The girder plate 34 coupled to the lower portion of one end of the steel pipe girder 22 may be provided with a slot 44 extending in the throttle direction for engagement with the head plate 20 of the toe point 16, And a fastening hole 42 may be formed in the girder plate 34 coupled to the lower end of the other end of the girder 22. [

The girder plates 34 of the two adjacent steel pipe girders 22 are spaced apart from each other so as to correspond to the expansion and contraction of the bridges in the head plate 20 of one toe point 16 coupled to the head of the constructed pile 14. [ .

7, the girder plate 34 of the steel pipe girder 22 on the left side and the girder plate 34 of the steel pipe girder 22 on the right side are joined to the head plate 20. A girder plate 34 having a fastening hole 42 and a girder plate 34 formed with a slot 44 are disposed in the one head plate 20. The girder plate 34 is attached to the head plate 20, A fastening hole 42 and a fastening hole 46 and a slot 48 corresponding to the fastening hole 42 and the slot 44 of the fastening hole 42 may be formed.

The left girder plate 34 is bolted to the head plate 20 through the fastening holes 42 of the girder plate 34 and the fastening holes 46 of the head plate 20, The girder plate 34 on the right side is bolted to the head plate 20 through the slot 44 of the head plate 44 and the slot 48 of the head plate 20. The girder plate 34 bolted through the slot 44 of the girder plate 34 and the slot 48 of the head plate 20 can absorb the elongation and contraction of the bridge due to the temperature difference.

The transverse brackets 24 are spaced apart from each other along the longitudinal direction of the steel pipe girder 22 and extend laterally at the side ends of the steel pipe girder 22. [ The transverse brackets 24 are joined in the form of a cantilever in the transverse direction with respect to the throttle at the side of the steel tube girder 22. The lateral bracket 24 can be fixed to the side of the steel pipe girder 22 by welding or high tension bolts or the like.

The transverse bracket 24 may be fabricated in the form of an I-shaped steel comprising an upper flange 30, a web 26 and a lower flange 28. The transverse bracket 24 24 each include a pair of webs 26 that are coupled to the outer circumferential surface of the steel pipe girder 22 so as to extend in the lateral direction at both side ends of the steel pipe girder 22, A pair of lower flanges 28 coupled to the lower ends of the pair of webs 26 along the length thereof and a pair of lower flanges 28 extending from the upper ends of the pair of webs 26 to the other upper end And an upper flange 30 joined longitudinally to the upper end of the pair of webs 26.

Each of the pair of webs 26 extends outward at opposite ends of the steel pipe girder 22 and one end of each of the webs 26 is joined to a side end of the steel pipe girder 22 to form a fixed end And the other end is joined to the side end of the steel pipe girder 22 in the form of a cantilever by forming a free end. At the lower end of each web 26, a lower flange 28 is coupled along the longitudinal direction of the web 26.

One upper flange 30 is longitudinally coupled to the top of a pair of webs 26 from the other end of one of the pair of webs 26 to the other.

Since the lateral bracket 24 is coupled to the side end of the steel pipe girder 22 in the form of a cantilever, the greatest moment is generated at the upper end of the engaging portion with the steel pipe girder 22. [ In order to effectively resist such a moment, one upper flange 30 is coupled to the upper end of a pair of webs 26 from the other end of one of the pair of webs 26 to the other end thereof in the longitudinal direction .

The lateral bracket 24 may have a tapered shape in which the cross section is reduced as it goes outward from the side end of the steel pipe girder 22. This is because the greatest moment is generated at the connecting portion with the steel pipe girder 22 to be.

A railing (40) for preventing the fall of a pedestrian or a bicycle may be coupled to the upper portion of the outer side of the lateral bracket (24).

The transverse bracket 24 is not limited to an I-shaped steel, but various types of structural steel such as box-shaped steel may be used.

On the other hand, the transverse brackets 24 can be divided into several pieces for the convenience of construction and the efficiency of transportation, and can be joined again when the bridge is constructed.

The steel pipe girder 22, the lateral bracket 24 and the girder point 32 are combined in advance to constitute one upper structure 11. The upper structure 11 is lifted by a crane or the like, The upper structure 11 can be coupled to the toe point 16 of the pile 14. [

The bottom portion 35 is formed along the longitudinal direction of the bridge on the lateral bracket 24 to provide a path for the walker or the bicycle.

The bottom portion 35 according to the present embodiment includes a deck plate 36 installed to support both ends of the upper flange 30 in the throttle direction and a deck plate 36 attached to the deck plate 36 and the upper flange 30, ) Of the concrete pavement 38.

In the case of the structural plate in which the deck plate 36 is alternately formed with the bone-shaped portion and the floor portion, the deck plate 36 is disposed so that the bone-shaped portion is arranged transverse to the upper flange 30. When the deck plate 36 is installed, the concrete for packaging is laid and cured to form the concrete pavement 38. In order to increase the rigidity of the concrete pavement 38, a wire mesh may be provided on the deck plate 36 before concrete is poured.

In order to enhance the rigidity of the bridge by the combined action of the concrete pavement 38 and the lateral bracket 24, studs protruding in the vertical direction are coupled to the upper surface of the upper flange 30 in advance Concrete can form the package 38. The combined action of the concrete pavement 38 and the lateral brackets 24 can increase the stiffness of the bridge superstructure, thereby extending the bridges.

As another embodiment of the bottom portion 35, the bottom portion may include a plurality of rows of joists coupled to the transverse brackets 24 in the thrash direction and a wooden deck coupled to the joists above the joists in a direction perpendicular to the joists. In the case of wooden decks, since the weight is light, a joist having a small cross section can be used, thereby reducing the weight of the bridge superstructure.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It will be understood that the invention may be varied and varied without departing from the scope of the invention.

Many embodiments other than the above-described embodiments are within the scope of the claims of the present invention.

11: superstructure 12: ground
14: Established pile 16: Tofu branch
18: head cap 20: head plate
22: steel pipe girder 24: lateral bracket
26: web 28: bottom flange
30: upper flange 32: girder point
34: girder plate 36: deck plate
38: Concrete pavement 40: Railing
42, 46: fastening holes 44, 48: slots
50: fusing unit 52: fusing plate
54: diaphragm 56: PS steel bar
58: Fixing bolt 60: Tension material

Claims (10)

As a bicycle traffic bridge,
A plurality of ready-formed piles spaced from each other along a linear shape of the bridge;
A tofu point including a head cap coupled to a head of the constructed pile and a head plate coupled horizontally above the head cap;
A girder point including a pair of girder plates respectively coupled to the head plate so as to be respectively in contact with the head plates of the adjacent piles;
A pipe-shaped steel pipe girder having opposite ends connected to the pair of girder plates so that both ends of the ready-made pile adjacent to each other through the girder point are respectively supported at the toe points;
A plurality of lateral brackets spaced from each other along the longitudinal direction of the steel pipe girder and extending transversely at a side end of the steel pipe girder;
And a bottom portion formed on an upper portion of the transverse bracket to provide a traveling path along the longitudinal direction of the bridge.
The method according to claim 1,
A pair of fixing parts respectively coupled to both ends of the pipe of the steel pipe girder;
Further comprising a tension member having one end fixed to one of the pair of fixing portions and the other end fixed to the other one of the pair of fixing portions to introduce a prestress into the steel pipe girder.
3. The method of claim 2,
Wherein the fixing unit comprises:
A fixing plate that is laterally coupled to the inside of the pipe of the steel pipe girder;
And a diaphragm coupled between the fixing plate and the inner surface of the pipe of the steel pipe girder,
Wherein the tension member is fixed to the fixing plate so as to be positioned at a lower portion of the center of the cross section of the steel pipe girder.
3. The method of claim 2,
Wherein the tension member is any one of a PS steel bar, a PS steel bar, and a PS strand bar.
The method according to claim 1,
The lateral bracket
A pair of webs coupled to the outer circumferential surface of the steel pipe girder so as to extend in the lateral direction at both side ends of the steel pipe girder;
A pair of lower flanges extending transversely at both side ends of the steel pipe girder and joined to the lower ends of the pair of webs along the longitudinal direction;
And an upper flange coupled longitudinally to an upper end of the pair of webs to extend from an upper end of one of the pair of webs to an upper end of the other one of the pair of webs.
6. The method of claim 5,
The lateral bracket
Further comprising a plurality of studs projecting in a vertical direction on an upper surface of the upper flange.
6. The method of claim 5,
The bottom portion
A deck plate installed at both ends of the upper flange so as to be supported in the direction of the axis of the bridge;
And a concrete pavement packed on the deck plate and the upper flange.
delete The method according to claim 1,
Wherein a coupling hole is formed in one of the pair of girder plates, and a slot is formed in the other one of the pair of girder plates in the throttling direction.
In paragraph 1
The bottom portion
A plurality of rows of joists connected to the transverse brackets in the direction of an axis of the bridge;
And a wooden floor plate joined to the upper portion of the joists in a direction perpendicular to the joists.

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