KR101696138B1 - Bridge bearing change method - Google Patents
Bridge bearing change method Download PDFInfo
- Publication number
- KR101696138B1 KR101696138B1 KR1020160033222A KR20160033222A KR101696138B1 KR 101696138 B1 KR101696138 B1 KR 101696138B1 KR 1020160033222 A KR1020160033222 A KR 1020160033222A KR 20160033222 A KR20160033222 A KR 20160033222A KR 101696138 B1 KR101696138 B1 KR 101696138B1
- Authority
- KR
- South Korea
- Prior art keywords
- jack
- lifting
- support
- fish
- bridge
- Prior art date
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/042—Mechanical bearings
- E01D19/046—Spherical bearings
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a method of replacing a small space bridge bearing using a beam bracket, wherein a separate beam bracket can be used to simultaneously raise the fish beam by the pull-up jack on both sides, So that the work can be efficiently performed.
In order to achieve the above object, the present invention provides a method of replacing and repairing a bridge support (400) mounted on an upper surface of a bridge pier (300) for supporting a fish beam (200) A pulling device arranging step of arranging a plurality of pulling devices provided on the jack base (10) on the lower side of the fish beam (200), respectively, in a symmetrical manner; A beam bracket 50 having symmetrical support wings 51 on both sides is installed on the lower portion of the fish beam 200 so that the support wings 51 are seated on the upper portion of the lifting device. ; A lifting jack lifting step of raising the lifting jack 20 up to raise the lifting height of the lifting jack 200 to a predetermined height; A bridge support replacement step of replacing the bridge support (400) in a state where the fish beam (200) is pulled up; A lifting and lowering operation of the lifting jack 20 to allow the fish beam 200 to be seated on the bridge support 400 'when the bridge support replacement operation is completed; And a device removing step of removing the beam bracket 50 and the lifting device after descending the fish beam 200, respectively.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge restoration method, and more particularly, to a bridge restoration method in which bridge restoration can be easily performed even in a narrow space between a PC beam and a bridge pier, Bridge restoration method.
Typically, a plurality of fish beams are laid longitudinally along a lane at an upper portion of a pier between a pier bridge of a concrete bridge (a fish beam bridge) and a bridge pier. In this case, an anchor metal plate exposed to the bottom of the fish beam, And the foundation anchor of the bridge support is fixed on the reinforced steel which is arranged in the inside by a robust means such as welding.
These bridge supports are responsible for transferring and cushioning the reaction force caused by vibrations such as loads transferred from bridge superstructures such as roofs, vehicles passing through the roofs, or earthquakes. However, bridge installations installed in such old concrete bridges It is not possible to prepare for earthquake resistance, and repair work is underway to replace the bridge bearing prepared for seismic design recently.
As an example of the prior art for replacing and repairing a tightly placed coplanar device between the upper part of the pier and the lower part of the fish beam as described above, Patent Registration No. 1248838 discloses a method of replacing a coarse- Discloses a technique related to the present invention.
However, in the above-mentioned conventional technique, the pull jack is installed at the lower part of the bridge top plate in order to perform the method, but the space between the bridge top plate and the bridge is narrow, which makes it difficult to perform the installation work.
The present invention has been proposed in order to solve the problems in the prior art, and it is an object of the present invention to provide a replacement method in which a bridge support replacement work can be easily performed in a narrow space, thereby improving work efficiency and preventing a safety accident .
According to an aspect of the present invention, there is provided a bridge support replacing method for replacing and repairing a bridge support seated on an upper surface of a bridge pier for supporting a fish beam on which an upper plate of a bridge is mounted, A step of arranging a pulling device disposed on both sides of a lower portion of the beam, respectively; A beam bracket mounting step of mounting a beam bracket having symmetrically formed supporting wings on both sides of the beam to the bottom of the fish beam so that the supporting wings are seated on the upper part of the lifting device; A lifting jack lifting step of lifting up the lifting jack to raise the lifting height of the lifting jack to a predetermined height; A bridge support replacement step of replacing the bridge support in a state in which the fish beam is pulled up; A lifting operation of the lifting jack to lower the lifting jack when the replacement work of the bridge support is completed, so that the fish beam is seated on the bridge support; And a device removing step of removing the beam bracket and the lifting device, respectively, after the lowering of the fish-eye beam.
In the bridge support replacement method of the present invention, it is possible to simultaneously perform the operation of lifting the fish beam by the pull-up jack on both sides by using a separate beam bracket, so that the replacement work for the bridge support can be efficiently performed even in a small work space .
1 is a schematic structural view of a general bridge support installed state.
FIG. 2 is a front view of a bridge support installed state where replacement is made in the present invention; FIG.
FIG. 3 is a side view of the bridge support installed in the present invention. FIG.
4 is a state in which the pull-up jack is installed according to the first embodiment of the present invention.
FIG. 5 is a state in which the beam bracket is installed according to the first embodiment of the present invention; FIG.
6 is a side view of the beam bracket according to the first embodiment of the present invention.
7 is a sectional view of a beam bracket according to the present invention.
8 is a perspective view of a beam bracket part in the present invention.
9 is a view showing a state in which the fish-eye beam is lifted in the present invention.
10 is a state in which the old bridge support is removed in the present invention.
11 is a state in which a new bridge support is installed in the present invention.
FIG. 12 is a view illustrating a state in which the lifted fish beam is retracted in the present invention. FIG.
FIG. 13 is a state in which the bridge support is replaced in the present invention. FIG.
FIG. 14 is a side view of the pulling device installed state according to the second embodiment of the present invention. FIG.
15 is a cross-sectional structural view of a telescopic guide plate according to a second embodiment of the present invention.
16 is an exploded perspective view of a telescopic guide plate in a second embodiment of the present invention.
17 is a plan view of the jack base in the second embodiment of the present invention.
Fig. 18 is a drawing of the pull-up device driving state in the second embodiment of the present invention. Fig.
Fig. 19 is a state in which the support bolt is raised in the second embodiment of the present invention. Fig.
20 is a cross-sectional view of a support bolt in a third embodiment of the present invention.
21 is a cross-sectional view of the support bolt in the third embodiment of the present invention.
22 is a structural view of a pulling device in a third embodiment of the present invention.
23 is a detailed view of a main portion of a telescopic guide plate in a third embodiment of the present invention.
Figure 24 is a spring exploded view in a third embodiment of the present invention.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIGS. 1 to 3, in order to support the
<Step of arranging the lifting device> (ST 1)
First, as shown in FIG. 4, a plurality of lifting devices provided on the
That is, at this time, in order to allow the pull-
≪ Installation step of beam bracket > (ST 2)
When the installation of the pull-
In order to receive the force of the pull-
<Lift up jack lift operation step> (ST 3)
9, the
That is, at this time, pulling force by the pull-
≪ Replacement step of bridge support > (ST 4)
When the lifting of the
<Step of lowering the impression jack> (ST 5)
When the replacement operation of the bridge support is completed, the
<Step of removing the lifting device> (ST 6)
When the lifting device such as the
Therefore, in the present invention, the operation of lifting the
14 to 19 illustrate a technical method according to the second embodiment of the present invention. In the pull-up device placing step ST 1, a
9, when the lifting jack is lifted up, the
Particularly, in the process of lifting or raising the
Therefore, it can be understood that the transition of the lifting device due to the flow of the
20 to 24 show a technique according to the third embodiment of the present invention. In the pulling-device placing step ST1, bolt grooves (not shown) are formed on both sides of the jack- The
A
23, a lubricating
The
When the
The
Since the
Therefore, even if the
At the same time, the
Particularly, since the
Although specific embodiments of the present invention have been illustrated and described above, it should be apparent that the present invention can be embodied with various modifications and changes without departing from the spirit and scope of the invention.
For example, in the case where the size of the
Therefore, it should be understood that such modified embodiments should not be individually understood from the technical spirit and scope of the present invention, and such modified embodiments should be included in the appended claims of the present invention.
10: Jack base 11: Jack seat
12: Bolt groove 20: Impression jack
30: support bolt 40: stretchable guide plate
41: top plate 42: bottom plate
41a, 42a: seat groove 43: guide rod
50: beam bracket 51: support wing
100: bridge top plate 200: fish beam
300: Pier 400,400 ': Bridge bearing
Claims (5)
In the pulling-device placing step ST1, a jack-receiving groove 11 in which the pull-up jack 20 is seated is formed at the center of the jack-receiving base 10, a supporting bolt 30 is fastened to both sides thereof, The upper part of the jack 20 is divided into an upper plate 41 and a lower plate 42 for guiding the expansion and contraction flow of the fish beam 200 in the thrashing direction and between the upper plate 41 and the lower plate 42, 43 and the upper plate 41 and the lower plate 42 constituting the extension and contraction guide plate 40 are provided with a seating groove 43 in which the guide rod 43 is seated The supporting bolts 30 are lifted up after the lifting jack up operation step ST3 so as to support the supporting wings 51 of the beam brackets 50. As a result, The rising step ST 3 - 1 is additionally performed so that the raised state of the fish beam 200 can be stably maintained;
In the lifting device placing step ST1, bolt grooves 12 are formed at both sides of the jack base 10 so that the height of the support bolt 30 can be adjusted. In the upper surface of the lifting jack 20, And a lifting device in which a hemispherical bearing (22) having a hemispherical shape is seated is disposed in the guide groove (21);
In the lifting device placing step ST1, a frictional pad 23 for increasing frictional force with the elasticity guide plate 40 is integrally formed on the upper surface of the hemispherical bearing 22. Inside the bolt groove 12, A stopper hole 31 is formed in the support bolt 30 at a plurality of positions in a longitudinal direction at predetermined intervals and the stopper hole 31 31 and the stopper pin 32 are fastened so that the lowering of the support bolt 30 is limited and the lubricant coating layer 42b of Teflon is formed on the seating groove 42a so that the guide rod 43 can smoothly flow. And elastic cushions 44 for supporting the flow of the guide rod 43 with a constant elastic force are formed on both side walls of the seating groove 42a and a buffer pad 45 is formed on the elastic spring 44 And the buffer pad 45 is formed in a shape that surrounds the buffer pad 45 A pull-up device in which an opening 45a having one side opened is provided so as to be variable in diameter;
A Method of Replacement of Small Space Bridge Support Using Beam Bracket.
The beam bracket 50 installed in the beam bracket installation step ST 2 is formed with a fish beam receiving groove 52 formed at an upper portion thereof so that the bottom surface of the fish beam 200 can be seated. A Method of Replacement of Small Space Bridge Support Using Beam Brackets.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160033222A KR101696138B1 (en) | 2016-03-21 | 2016-03-21 | Bridge bearing change method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160033222A KR101696138B1 (en) | 2016-03-21 | 2016-03-21 | Bridge bearing change method |
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KR101696138B1 true KR101696138B1 (en) | 2017-01-12 |
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KR1020160033222A KR101696138B1 (en) | 2016-03-21 | 2016-03-21 | Bridge bearing change method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112095494A (en) * | 2020-09-30 | 2020-12-18 | 中交路桥华南工程有限公司 | Construction method for heightening bridge pad stone |
CN115615835A (en) * | 2022-09-14 | 2023-01-17 | 南京交通职业技术学院 | Concrete member bearing capacity verifying unit |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040034368A (en) * | 2003-08-22 | 2004-04-28 | 김해영 | bearing for jacking up upper structure of bridge |
KR101150765B1 (en) * | 2012-02-21 | 2012-06-08 | 엔이티엔지니어링 주식회사 | Lifting jack for exchange of bridge bearing |
KR101248838B1 (en) * | 2012-12-28 | 2013-04-03 | 대경산업(주) | A lifting jack of upper structure of bridge and method for changing bridge bearings using them |
KR101284431B1 (en) * | 2012-12-24 | 2013-07-09 | 피엔에이건설 주식회사 | Oil jack using shoe construction methodfor |
-
2016
- 2016-03-21 KR KR1020160033222A patent/KR101696138B1/en active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040034368A (en) * | 2003-08-22 | 2004-04-28 | 김해영 | bearing for jacking up upper structure of bridge |
KR101150765B1 (en) * | 2012-02-21 | 2012-06-08 | 엔이티엔지니어링 주식회사 | Lifting jack for exchange of bridge bearing |
KR101284431B1 (en) * | 2012-12-24 | 2013-07-09 | 피엔에이건설 주식회사 | Oil jack using shoe construction methodfor |
KR101248838B1 (en) * | 2012-12-28 | 2013-04-03 | 대경산업(주) | A lifting jack of upper structure of bridge and method for changing bridge bearings using them |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112095494A (en) * | 2020-09-30 | 2020-12-18 | 中交路桥华南工程有限公司 | Construction method for heightening bridge pad stone |
CN115615835A (en) * | 2022-09-14 | 2023-01-17 | 南京交通职业技术学院 | Concrete member bearing capacity verifying unit |
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