KR101654699B1 - Shear connector and girder having the same - Google Patents
Shear connector and girder having the same Download PDFInfo
- Publication number
- KR101654699B1 KR101654699B1 KR1020150113612A KR20150113612A KR101654699B1 KR 101654699 B1 KR101654699 B1 KR 101654699B1 KR 1020150113612 A KR1020150113612 A KR 1020150113612A KR 20150113612 A KR20150113612 A KR 20150113612A KR 101654699 B1 KR101654699 B1 KR 101654699B1
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- South Korea
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- stud
- girder
- frame beam
- coupled
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
A shear connector is disclosed. A shear connector according to an embodiment of the present invention includes: a frame beam, at least a portion of which is embedded in a girder; And a vertical member coupled to the frame beam.
Description
More particularly, the present invention relates to a shear connection material which can be easily installed with a simple structure and can fully exhibit the effect of the synthesis between a girder and a bottom plate concrete placed on the upper part of a girder.
In the construction of bridges, it is necessary to improve the shear strength and ductility by inducing the unified behavior of the load transfer by solidifying the shear connect between the girder and the bottom plate concrete placed on the girder top will be.
Conventionally, as shown in detail in FIG. 1, a
However, in the conventional shear connector using the reinforcing bars, since the
In addition, even if it is attempted to reduce the interval of the
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a shear connection member which can be easily installed with a simple structure and can sufficiently exhibit the effect of the synthesis between the girder and the bottom plate concrete placed on the upper portion of the girder, And a girder having the same.
According to an aspect of the present invention, there is provided a frame structure, comprising: a frame beam in which at least a portion is embedded in a girder; And a vertical member coupled to the frame beam.
The frame beam may be one of an 'I' type and a 'U' type beam.
The frame beam may have a cut-out portion cut along a longitudinal direction at a predetermined portion of the upper end portion or the lower end portion.
The frame beam may be an 'I' shaped beam, and the vertical member may be a stud unit coupled to either the upper surface or the lower surface of the frame beam.
The stud unit comprising: an upper stud rod coupled to an upper surface of the frame beam; And an upper stud magnifying head coupled to an upper end of the upper stud bar.
The stud unit may further include a plurality of upper stud wings spaced from each other in the radial direction of the upper stud bar and coupled to the upper stud bar.
The stud unit includes: a lower stud rod coupled to a lower surface of the frame beam; A lower stud enlarged head coupled to a lower end of the lower stud rod; And a plurality of lower stud wings spaced apart from each other in the radial direction of the lower stud rod and coupled to the lower stud rod.
The frame beam being entirely embedded in the girder, the stud unit comprising: a first upper stud rod coupled to an upper surface of the frame beam and disposed within the girder; A second upper stud rod coupled to the first upper stud rod; And a second upper stud extension head coupled to an upper end of the second upper stud bar.
The first upper stud bar and the second stud bar may be bolted together.
The stud unit may further include a plurality of stud wings coupled to at least one of the first upper stud rod and the second upper stud rod so as to be spaced apart from each other in the radial direction.
The frame beam may be a U-shaped beam, and the vertical member may be a stud unit coupled to the lower surface of the frame beam and embedded in the girder.
The stud unit includes: a lower stud rod coupled to a lower surface of the frame beam; And a lower stud enlarged head coupled to a lower end of the stud rod.
The stud unit may further include a plurality of lower stud wings spaced from each other in the radial direction to the lower stud rod and coupled to the lower stud rod.
And an enlarged head coupled to an upper surface of the frame beam.
According to another aspect of the present invention, there is provided a girder frame comprising: a girder frame; And a girder including the shear connector according to any one of claims 1 to 14 installed on the girder frame.
The embodiments of the present invention can sufficiently exhibit the effect of the synthesis between the girder and the bottom plate concrete placed on the upper part of the girder, thereby further strengthening the shear connection between the girder and the bottom plate concrete, thereby inducing the load transfer and the integrated behavior Not only the shear strength and ductility can be improved, but also the effect of reinforcing the rigidity of the girder can be obtained.
FIG. 1 is a cross-sectional view showing a state where a girder including a shear connector using a conventional reinforcing bar and a bottom plate concrete are combined.
2 is a perspective view showing a shear connector according to a first embodiment of the present invention.
FIG. 3 is a cross-sectional view showing a state where a girder including the shear connection member of FIG. 2 and a bottom plate concrete are combined.
4 is a perspective view illustrating a shear connector according to a second embodiment of the present invention.
FIG. 5 is a cross-sectional view showing a state where a girder including a shear connection member of FIG. 4 and a bottom plate concrete are coupled.
6 is a perspective view illustrating a shear connector according to a third embodiment of the present invention.
FIG. 7 is a cross-sectional view illustrating a state in which a girder including a shear connection member of FIG. 6 and a bottom plate concrete are combined.
8 is a perspective view illustrating a shear connector according to a fourth embodiment of the present invention.
In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.
FIG. 2 is a perspective view showing a shear connection member according to a first embodiment of the present invention, and FIG. 3 is a cross-sectional view illustrating a state where a girder including the shear connection member of FIG.
As shown in these drawings, the shear connection member 1a according to the first embodiment of the present invention is constructed such that at least a portion thereof is embedded in the girder 3I, and between the girder 3I and the
First, the frame beam 10I constitutes the body of the front end coupling member 1a to which a
According to the present invention, by using a beam as the body of the shear connector (1a), an effect of connecting the shear ends between the girder (3I) and the bottom plate concrete (2) can be obtained and the effect of reinforcing the rigidity of the girder Can be obtained.
That is, a part of the frame beam 10I is embedded at the upper end of the girder 3I to reinforce the rigidity of the girder 3I. For example, in order to withstand the tensile stress generated at the upper end of the girder when the prestress is introduced, It is possible to reinforce the stiffness of the third layer 3I.
In this embodiment, a frame beam 10I having an I-shaped cross section is used, and the frame beam 10I is provided with an
At this time, the frame beam 10I may be formed with a
As a result, in this embodiment, the
Further, the portion embedded in the girder 3I reinforces the rigidity, which is a weak point of the concrete portion constituting the girder 3I.
In this embodiment, as described above, the frame beam 10I uses two beams having an I-shaped cross section, but the scope of the present invention is not limited thereto, 8) or a T-shaped beam may be used. Further, depending on the change of the size, shape and weight of the girder, the thickness of the frame beam, the length, the presence or absence of the cut portion, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
The
The shear connection member 1a has a structure in which the
The
The
The
By providing the
Further, the
The
However, the present invention is not limited to this, and if the shear connection is required to be more rigid, the
The description of the
When the
As described above, according to the present embodiment, by providing the frame beam 10I, which is partially embedded at the upper end of the girder 3I, and the
FIG. 4 is a perspective view illustrating a shear connection member according to a second embodiment of the present invention, and FIG. 5 is a cross-sectional view illustrating a state where a girder including the shear connection member of FIG.
Hereinafter, the
The
First, the entire frame beam 10I is embedded in the
Next, the
The first
The first
By having the double-coupled structure in which the first
Although the connecting
In this embodiment, the first
That is, by having a structure in which the wings are concentrated toward the direction perpendicular to the throttling axis, it is possible to more effectively resist the force transmitted in the throttling direction C as compared with the first embodiment.
Since the
FIG. 6 is a perspective view showing a shear connection member according to a third embodiment of the present invention, and FIG. 7 is a sectional view showing a state where a girder including the shear connection member of FIG. 6 and a bottom plate concrete are coupled.
Hereinafter, the
Since the
First, the
At this time, the
The
In this embodiment, the
8 is a perspective view illustrating a shear connector according to a fourth embodiment of the present invention.
Hereinafter, the
The fourth embodiment of the present invention differs from the third embodiment in that no cut-out
As described above, according to the present invention, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. It is clear to those who have knowledge. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.
1a, 1b, 1c, 1d: shear connection member 2: bottom plate concrete
3I, 3U: girder 10U, 10I: frame beam
30, 40, 50, 60: stud unit 31: upper stud rod
32: Upper stud extension head 33: Upper stud wing
37: lower stud rod 38: lower stud enlarged head
39: lower stud wing 41: first upper stud rod
42: connecting portion 43: second upper stud rod
44: second upper stud extension head 45: first upper stud wing
46: second upper stud wing 47: lower stud rod
48: Zoom in the lower stud 49: Zoom in the lower stud
Claims (15)
A vertical member coupled to the frame beam,
The frame beam is a " U "
Wherein the frame beam is integrally formed with a cut-out portion formed by cutting a predetermined section of the frame beam along a longitudinal direction, and an enlarged head extending horizontally from an upper end of the frame beam,
Wherein the vertical member is a stud unit coupled to a lower surface of the frame beam and embedded in the girder,
The stud unit includes:
A lower stud rod coupled to a lower surface of the frame beam;
A lower stud enlarged head coupled to a lower end of the stud rod; And
And a plurality of lower stud wings spaced apart from each other in the radial direction and coupled to the lower stud bar.
A girder comprising the shear connector according to claim 1, which is installed in the girder frame.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150113612A KR101654699B1 (en) | 2015-08-12 | 2015-08-12 | Shear connector and girder having the same |
Applications Claiming Priority (1)
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KR1020150113612A KR101654699B1 (en) | 2015-08-12 | 2015-08-12 | Shear connector and girder having the same |
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KR101654699B1 true KR101654699B1 (en) | 2016-09-06 |
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KR1020150113612A KR101654699B1 (en) | 2015-08-12 | 2015-08-12 | Shear connector and girder having the same |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101780370B1 (en) * | 2017-03-17 | 2017-10-10 | 홍석희 | Composite structure using shear connector made of anchor and socket shoe |
CN108660922A (en) * | 2018-06-30 | 2018-10-16 | 西南交通大学 | Steel-concrete connection structure and its shear connector |
Citations (5)
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KR20070113691A (en) * | 2006-05-25 | 2007-11-29 | 비비엠코리아(주) | Steel pipe girder |
KR20090001754U (en) | 2007-08-21 | 2009-02-25 | 비비엠코리아(주) | Shear connector with recess |
KR101094239B1 (en) * | 2011-07-22 | 2011-12-14 | 삼표건설 주식회사 | Reinforcement member and girder using the same |
KR101194482B1 (en) * | 2012-05-08 | 2012-10-24 | (주)홍지디씨에스 | The steel systhesis beam and the method threreof |
KR101505039B1 (en) * | 2014-11-03 | 2015-03-24 | 주식회사 오케이건설 | Composite Girder with Heating-Reinforcing Steel Beam and Concrete Beam |
-
2015
- 2015-08-12 KR KR1020150113612A patent/KR101654699B1/en active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20070113691A (en) * | 2006-05-25 | 2007-11-29 | 비비엠코리아(주) | Steel pipe girder |
KR20090001754U (en) | 2007-08-21 | 2009-02-25 | 비비엠코리아(주) | Shear connector with recess |
KR101094239B1 (en) * | 2011-07-22 | 2011-12-14 | 삼표건설 주식회사 | Reinforcement member and girder using the same |
KR101194482B1 (en) * | 2012-05-08 | 2012-10-24 | (주)홍지디씨에스 | The steel systhesis beam and the method threreof |
KR101505039B1 (en) * | 2014-11-03 | 2015-03-24 | 주식회사 오케이건설 | Composite Girder with Heating-Reinforcing Steel Beam and Concrete Beam |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101780370B1 (en) * | 2017-03-17 | 2017-10-10 | 홍석희 | Composite structure using shear connector made of anchor and socket shoe |
CN108660922A (en) * | 2018-06-30 | 2018-10-16 | 西南交通大学 | Steel-concrete connection structure and its shear connector |
CN108660922B (en) * | 2018-06-30 | 2023-08-11 | 西南交通大学 | Steel-concrete connecting structure and shear connector thereof |
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