KR102227426B1 - Girder structure with the function of enlargement of the interlinkage of the bridge - Google Patents

Abstract

The present invention relates to a girder structure having a function for extending a span length of a bridge, which can prevent a girder from being bent by using a strand. The girder structure of the present invention comprises: an H-shaped steel girder having a cross section formed in an H-shape to extend in a longitudinal direction; a pile installed at regular intervals along a lower side of the H-shaped steel girder to support the H-shaped steel girder; a strand for applying a tension to the H-shaped steel girder by being installed in a vertical direction in a zigzag pattern along one side of the H-shaped steel girder to prevent sagging of a central part of the H-shaped steel girder which is not supported by the pile; and a steel wire upper part seating unit installed at each upper side of a branch part of the H-shaped steel girder to allow the strand to pass through an upper side of the branch part of the H-shaped steel girder which is a position supported by the pile.

Description

Girder structure with the function of expanding the liver length of the bridge{GIRDER STRUCTURE WITH THE FUNCTION OF ENLARGEMENT OF THE INTERLINKAGE OF THE BRIDGE}

The present invention relates to a girder structure having a function of expanding the spanning length of a bridge, and more particularly, to a girder structure having a function of expanding the spanning length of a bridge, which is implemented to prevent bending of the girder by using a stranded wire.

In general, a bridge is an elevated structure made to cross over rivers, lakes, straits, bays, canals, lowlands, or other traffic routes or structures, and is largely divided into an upper structure and a lower structure.

The upper structure refers to the structure on the lower structure of an alternating bridge or pier, and it is installed on the upper part of the girder and the H-beam girder that receives the load applied from the upper part of the lower structure and transmits it to the lower structure. It is composed of a slab that allows vehicles and people to pass.

Among these superstructures, the girder made of H-beam is subjected to a force in the direction in which the central part is bent downward by the vertical load by the fixed load acting on the upper part and the live load by the vehicle or crowd. When this occurs, the entire bridge may collapse, so it needs to be designed to have sufficient bending strength for vertical load.

On the other hand, the above-described background technology is technical information that the inventor possessed for derivation of the present invention or acquired during the derivation process of the present invention, and is not necessarily known to be known to the general public prior to filing the present invention. .

Korean Patent Registration No. 10-1356675 Korean Patent Registration No. 10-1168911

One aspect of the present invention is a girder structure with a function of expanding the span length of a bridge implemented to impart tension to the girder by using a strand installed in a vertical zigzag direction along one side of the girder to prevent sagging of the central part of the girder. Provides.

The technical problem of the present invention is not limited to the technical problem mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

A girder structure having a cross-linked inter-span enlargement function according to an embodiment of the present invention includes: a "H"-beam girder having a cross section formed in a "H" shape and extending in a longitudinal direction; A pile installed at regular intervals along the lower side of the "H"-beam girder to support the "H"-beam girder; It is installed in a vertical zigzag direction along one side of the "H"-beam girder so as to prevent sagging of the central portion of the "H"-beam girder that is not supported by the pile to impart tension to the "H"-beam girder. Kang Yeon-seon; And a steel wire upper seating part installed at each upper side of the branch part of the "H"-beam girder so that the wire can pass through the upper part of the branch part of the "H"-beam girder, which is a position supported by the pile.

In one embodiment, at least one or more of the stranded wire may be installed along one side of the “H”-beam girder.

In one embodiment, the "H"-beam girder, a web (Web) portion which is erected in a vertical direction and extended in a length direction; An upper flange portion formed in a horizontal direction with the ground and extending in a longitudinal direction along an upper side of the web portion; And a lower flange portion formed parallel to the upper flange portion, extending in a longitudinal direction along a lower side of the web portion, and supported by the pile installed at regular intervals along the lower side.

In one embodiment, the upper seating portion of the steel wire may be installed on an upper side of one side of the web portion corresponding to the position of the lower flange portion supported by the pile.

In an embodiment, the lower flange portion includes a first through hole through which the stranded wire through the upper seating portion of the steel wire moves downward in a central portion positioned between one pile supporting the lower side and the other pile, and the first through hole. Second through-holes for moving the strands moving downward through the through-hole to move upward may be formed to face each other.

In one embodiment, the first through-hole may be formed by passing through the lower flange portion at an angle corresponding to an inclination angle of the stranded wire passing through the upper seating portion of the steel wire.

In one embodiment, the second through hole may be formed by passing through the lower flange portion at an angle so as to be symmetrical in a front-rear direction with the formation structure of the first through hole.

In one embodiment, the girder structure having a spanning length expansion function of the bridge according to another embodiment of the present invention, the stranded wire passing through the upper seating portion of the steel wire located above the branch portion of the "H"-beam girder is the "H" It may further include a "steel wire lower seating part installed on each lower side of the central part of the "H"-beam girder so as to pass through the lower side of the central part of the section steel girder.

In one embodiment, the lower seating portion of the steel wire may be formed of any one of a pulley, a pin, and a bolt.

In one embodiment, the pin may have a "V"-shaped seating groove for seating the strand along the outer surface so that the strand passing along the outer surface does not move during tension.

In one embodiment, the stranded wire is installed in a vertical zigzag direction along one side and the other side of the "H"-beam girder to impart tension to the "H"-beam girder.

In one embodiment, the girder structure having the function of expanding the spanning length of the bridge according to another embodiment of the present invention is the "H"-beam girder in close contact with the lower corner of the strand located under the "H"-beam girder. It is installed on the lower side of the tension force increasing unit for increasing the tension of the stranded wire; may further include.

In one embodiment, the tension increasing part extends so as to be perpendicular to the traveling direction of the "H"-beam girder along the lower side of the "H"-beam girder that is in close contact with the lower corner of the strand located on the lower side of the "H"-beam girder. A seating groove formed; A conical bolt that forms a thread along an outer surface and gradually decreases in diameter from a front end to a rear end that is seated in the front end of the seating groove, and is seated in the seating groove; A first cover that is rotatably connected to one side of the seating groove, covers one side of the conical bolt, and supports the stranded wire with an outer surface; And a second cover that is connected and installed to be rotatable to the other side of the seating groove, covers the other side of the conical bolt, and supports the stranded wire with an outer surface.

In one embodiment, the seating groove may have a threaded thread so as to be engaged with the thread of the conical bolt.

In one embodiment, the conical bolt moves while rotating in the direction of the rear end of the seating groove as the user rotates, and accordingly, as a front end having a larger diameter enters the seating groove, the first cover and the The second cover may be unfolded to increase the tension by pushing the stranded wire downward.

According to one aspect of the present invention described above, by applying a tension force to the girder by using a stranded wire installed in a vertical zigzag direction along one side of the girder to prevent sagging of the central portion of the girder, the stress at the point of the bridge is dispersed. It can provide the effect of lowering the height of the installation pile by preventing the bending of the girder.

In addition, it is possible to reduce the number of pile installations by expanding the spacing of the piles, so that the number of transport and cranes for bridge installation can be drastically reduced, thereby reducing construction time and reducing construction costs.

The effects of the present invention are not limited to the above-mentioned effects, and various effects may be included within a range apparent to those of ordinary skill in the art from the contents to be described below.

FIG. 1 is a diagram showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a connection structure of the stranded wire of FIG. 1.
3 and 4 are views showing an installation example of the stranded wire of FIG. 1.
FIG. 5 is a diagram showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to another embodiment of the present invention.
6 is a view showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to another embodiment of the present invention.
7 to 9 are views illustrating the tension of the stranded wire by the tension increasing unit of FIG. 6.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The detailed description of the present invention described below refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in connection with one embodiment. In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention, if appropriately described, is limited only by the appended claims, along with all ranges equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions over several aspects.

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

FIG. 1 is a diagram showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to an embodiment of the present invention.

Referring to FIG. 1, the girder structure 10 having the function of expanding the spanning length of the bridge according to an embodiment of the present invention is a "H"-beam girder 100, a pile 200, a stranded wire 300, and a steel wire seated on the top. Includes part 400.

The "H"-shaped steel girder 100 is formed in a "H" shape in cross section to extend in the longitudinal direction, and is supported by a plurality of piles 200 installed along the lower side.

In one embodiment, the "H"-beam girder 100 may include a web portion 110, an upper flange portion 120, and a lower flange portion 130.

The web portion 110 is erected in a vertical direction and extended in the longitudinal direction, an upper flange portion 120 is installed along the upper side, and a lower flange portion 130 is installed along the lower side, The bending is prevented by the tension force by the stranded wire 300 installed along the line.

The upper flange portion 120 is formed in a horizontal direction with the ground and extends in a longitudinal direction along the upper side of the web portion 110.

The lower flange portion 130 is formed extending in a longitudinal direction along the lower side of the web portion 110 while being parallel to the upper flange portion 120, and supported by a pile 200 installed at regular intervals along the lower side. do.

In one embodiment, the lower flange portion 130, the upper seating portion 400 of the steel wire in the central portion (B1) located between the one pile (200-1) supporting the lower side and the other pile (200-2) The first through hole 131 for moving the stranded wire 300 passing downward, and the second through hole for moving the stranded wire 300 downward through the first through hole 131 to move upward 132 may be formed facing each other.

In one embodiment, the first through-hole 131 may be formed by passing through the lower flange portion 130 at an angle corresponding to an inclination angle of the stranded wire 300 passing through the upper seating portion 400 of the steel wire.

In one embodiment, the second through-hole 132 may be formed by obliquely penetrating the lower flange portion 130 so as to be symmetrical in the front-rear direction with the formation structure of the first through-hole 131.

The pile 200 is installed at regular intervals along the lower side of the "H"-beam girder 100 to support the "H"-beam girder 100.

The stranded wire 300 is one side of the "H"-beam girder 100 to prevent sagging of the central portions (B1, B2) of the "H"-beam girder 100 that are not supported by the pile 200, that is, , It is installed in the vertical zigzag direction along one side of the web portion 110 to impart tension to the "H"-beam girder 100.

In one embodiment, at least one of the strands 300-1 and 300-2 may be installed along one side of the "H"-beam girder 100 as shown in FIG. 3.

At this time, the number of strands 300 is not limited to one or two as shown in FIG. 1 or 3, and three or more may be installed depending on the degree of tension.

In one embodiment, the strands 300a and 300b are installed in a vertical zigzag direction along one side and the other side of the "H"-beam girder 100, that is, as shown in FIG. It is possible to impart a stronger tension to the "H"-beam girder 100 than if it is installed.

The upper seating portion 400 of the steel wire is a position supported by the pile 200 of the "H"-beam girder 100 so that the wire 300 can pass through the upper side of the point portion of the "H"-beam girder 100 It is installed on each upper side of the branch parts (A1, A2, A3).

In one embodiment, the upper seating portion 400 of the steel wire may be installed on an upper side of one side of the web portion 110 corresponding to the position of the lower flange portion 130 supported by the pile 200.

That is, the girder structure 10 having a cross-linkage length expansion function according to an embodiment of the present invention having the configuration as described above, as shown in FIG. 2, is a "H"-shaped steel girder ( A plurality of piles (200-1, 200-2, 200-3) supporting 100) and branch portions (A1, A2, A3) supported by each pile (200-1, 200-2, 200-3) ) Consisting of a stranded wire 300 to prevent sagging of the upper seating portions 400-1, 400-2, 400-3, and the central portions (B1, B2) of the "H"-beam girder 100 installed every) will be.

The girder structure 10 having the function of expanding the spanning length of the bridge according to an embodiment of the present invention having the configuration as described above is installed in a vertical zigzag direction along one side of the girder so as to prevent sagging of the central portion of the girder. By imparting tension to the girder using a stranded wire, it is possible to reduce the height of the installation pile by dispersing the stress at the point of the bridge and preventing bending of the girder.

In addition, it is possible to reduce the number of pile installations by expanding the spacing of the piles, so that the number of transportation and cranes for bridge installation can be drastically reduced, thereby reducing construction time and construction cost.

FIG. 5 is a diagram showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to another embodiment of the present invention.

5, the girder structure 20 having the function of expanding the spanning length of the bridge according to another embodiment of the present invention is a "H"-beam girder 100, a pile 200, a stranded wire 300, a steel wire seated on top It includes a portion 400 and a lower seating portion 500 of the steel wire.

Here, the "H"-beam girder 100, the pile 200, the stranded wire 300, and the steel wire upper seating part 400 are the same as those of FIG. 1, and thus the description thereof will be omitted.

The steel wire lower seating portion 500, instead of drilling a through hole in the lower flange portion 130, the stranded wire 300 passing through the upper seating portion 400 of the steel wire located on the upper side of the branch portion of the "H"-beam girder 100 ) Is installed on each lower side of the central portions B1 and B2 of the “H”-beam girder 100 so that the “H”-beam girder 100, that is, the lower side of the central portion of the web portion 110, can be passed through.

In one embodiment, the lower seating portion 500 of the steel wire may be formed of any one of a pulley (S1), a pin (S2), and a bolt (S3).

In one embodiment, the pin (S2) has a "V"-shaped seating groove (L) for seating the strand 300 along the outer surface so that the strand 300 passing along the outer surface does not move during tension Can be formed.

The girder structure 20 having the function of expanding the spanning length of the bridge according to another embodiment of the present invention having the configuration as described above, the first through hole 131 or the second through hole 132 as shown in FIG. By using only the lower seating portion 500 of the steel wire without the need to form a through hole such as ), it is possible to form a tension imparting structure even through non-destruction of the girder.

6 is a view showing a schematic configuration of a girder structure having a function of expanding the spanning length of a bridge according to another embodiment of the present invention.

6, the girder structure 30 having a function of expanding the spanning length of the bridge according to another embodiment of the present invention is a "H"-beam girder 100, a pile 200, a stranded wire 300, an upper part of a steel wire It includes a seating portion 400 and a tension increasing portion 600.

Here, the "H"-beam girder 100, the pile 200, the stranded wire 300, and the steel wire upper seating part 400 are the same as those of FIG. 1, and thus the description thereof will be omitted.

The tension increasing part 600 is the lower side of the "H"-beam girder 100, that is, of the "H"-beam girder 100 that is in close contact with the lower corner of the stranded wire 300 located on the lower side of the lower flange part 130. It is installed on the lower side, that is, on the lower side of the lower flange portion 130 to increase the tension of the stranded wire 300.

In one embodiment, the tension increasing unit 600 may include a seating groove 610, a conical bolt 620, a first cover 630 and a second cover 640.

The seating groove 610 is a moving direction of the stranded wire 300 along the lower side of the "H"-beam girder 100 in close contact with the lower corner of the stranded wire 300 located on the lower side of the "H"-beam girder 100 It is formed extending so as to be at right angles, and the conical bolt 620 is seated, and the first cover 630 and the second cover 640 are connected to one side and the other side so as to be rotatable, respectively.

In one embodiment, the seating groove 610 may have a threaded thread so as to be engaged with the thread of the conical bolt 620.

The conical bolt 620 forms a thread along the outer surface, and is formed to gradually decrease in diameter from the front end to the rear end seated in the front end of the seating groove 610 to be seated in the seating groove 610, and the user As it rotates according to the zoom, it moves in the inner direction of the seating groove 610.

In one embodiment, the conical bolt 620 may form a "+"-shaped groove 621 for assisting the user's rotation on the front side.

The first cover 630 is connected to be rotatably installed on one side of the seating groove 610 to cover one side of the conical bolt 620 and support the stranded wire 300 on the outer surface.

The second cover 640 is connected to the other side of the seating groove 610 so as to be rotatable, covers the other side of the conical bolt 620, and supports the stranded wire 300 on the outer surface.

In one embodiment, the conical bolt 620 is the first as shown in FIG. 8 as it moves while rotating in the rear end direction of the seating groove 610 in a state as shown in FIG. 7 as the user rotates. The cover 630 and the second cover 640 are lifted, and accordingly, as the shear with a larger diameter enters the seating groove 610, the first The cover 630 and the second cover 640 may be unfolded to increase the tension of the strand 300 by pushing the lower corner of the strand 300 downward.

The girder structure 30 having the function of expanding the spanning length of the bridge according to another embodiment of the present invention having the configuration as described above, a conical bolt 620 without the help of a separate pulling device, etc. It is possible to increase the tension of the stranded wire 300 simply by rotating it.

The above-described embodiments are for illustrative purposes only, and those of ordinary skill in the art to which the above-described embodiments belong can easily transform into other specific forms without changing the technical spirit or essential features of the above-described embodiments. You can understand. Therefore, it should be understood that the above-described embodiments are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope to be protected through the present specification is indicated by the claims to be described later rather than the detailed description, and should be interpreted as including all changes or modified forms derived from the meaning and scope of the claims and the concept of equivalents thereof. .

10, 20, 30: Girder structure having a function of expanding the intercalary length of the bridge
100: "H" section steel girder (100)
200: file
300: stranded wire
400: upper seating portion of the steel wire
500: the lower seating portion of the steel wire
600: tension increase unit

Claims (15)

"H" shaped steel girders having a cross section formed in a "H" shape and extending in the longitudinal direction;
A pile installed at regular intervals along the lower side of the "H"-beam girder to support the "H"-beam girder;
A steel strand installed in a vertical zigzag direction along one side of the "H"-beam girder to impart tension to the "H"-beam girder;
A steel wire upper seating part installed at each upper side of the branch part of the "H"-beam girder so that the wire can pass through the upper part of the branch part of the "H"-beam girder, which is a position supported by the pile; And
A tension increasing part installed on the lower side of the "H"-beam girder in close contact with the lower corner of the stranded wire located under the "H"-beam girder;
The tension increasing part is a seating groove that extends to be perpendicular to the moving direction of the stranded steel wire along the lower side of the "H"-shaped steel girder in close contact with the lower corner of the stranded wire located on the lower side of the "H"-shaped steel girder. Conical bolts that form a thread along a side surface and are formed to gradually decrease in diameter from the front end to the rear end seated in the front end of the seating groove to be seated in the seating groove,
It is connected to be rotatably installed on one side and the other side of the seating groove, covering one side and the other side of the conical bolt, further comprising first and second covers for supporting the stranded wire on the outer side, and the spanning length of the bridge is enlarged. Girder structure with.
The method of claim 1, wherein the strand is
At least one or more is installed along one side of the "H"-shaped steel girder, a girder structure having a function of expanding the span of the bridge.
The method of claim 1, wherein the "H" section steel girder,
A web part that is erected in a vertical direction and extended in a length direction;
An upper flange portion formed in a horizontal direction with the ground and extending in a longitudinal direction along an upper side of the web portion; And
A lower flange portion formed parallel to the upper flange portion and extended in the longitudinal direction along the lower side of the web portion and supported by the pile installed at regular intervals along the lower side; Having a girder structure.
The method of claim 3, wherein the upper seating portion of the steel wire,
A girder structure having a bridge length expansion function that is installed on an upper side of one side of the web portion corresponding to the position of the lower flange portion supported by the pile.
The method of claim 3, wherein the lower flange portion,
The first through hole for moving downward through the upper seating portion of the steel wire in the central part located between one pile supporting the lower side and the other pile, and the strand moving downward through the first through hole A girder structure having a function of expanding the spanning length of a bridge, in which the second through-holes for moving upwards are opposed to each other and are formed.
The method of claim 5, wherein the first through hole,
A girder structure having a bridge length expansion function, which is formed by obliquely penetrating the lower flange portion in response to an inclination angle of the stranded wire passing through the upper seating portion of the steel wire.
The method of claim 6, wherein the second through hole,
A girder structure having a function of expanding a spanning length of a bridge, formed by obliquely penetrating the lower flange portion so as to be symmetrical in an anteroposterior direction with the formation structure of the first through hole.
The method of claim 1,
It is installed on each lower side of the central part of the "H"-beam girder so that the stranded wire passing through the upper seating part of the steel wire located above the point of the "H"-beam girder can pass through the lower side of the central part of the "H"-beam girder. The lower seating portion of the steel wire; further comprising, a girder structure having a function of expanding the spanning length of the bridge.
The method of claim 8, wherein the lower seating portion of the steel wire,
A girder structure with a function of expanding the span of bridges, formed by any one of pulleys, pins and bolts.
The method of claim 9, wherein the pin,
A girder structure having a function of expanding the spanning length of a bridge, in which a "V"-shaped seating groove is formed along the outer surface to prevent the stranded wire passing along the outer surface from moving during tension.
The method of claim 1, wherein the strand is
A girder structure having a function of expanding the spanning length of the bridge, which is installed in a vertical zigzag direction along one side and the other side of the "H"-beam girder to impart tension to the "H"-beam girder.
delete delete The method of claim 1, wherein the seating groove,
A girder structure having a cross-linked spanning function, in which a thread is formed so as to be engaged with the thread of the conical bolt.
The method of claim 14, wherein the conical bolt,
As the user rotates, it moves while rotating in the direction of the rear end of the seating groove. Accordingly, as a front end having a larger diameter enters the seating groove, the first cover and the second cover are unfolded to lower the strand. A girder structure that has the function of expanding the interstitial length of the bridge that increases the tension by pushing it.

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