Method and apparatus for lifting upper structure using girder type bracket supported by steel strand

专利摘要:
PURPOSE: An upper structure pulling method using a girder type bracket supported by a steel wire and a saddle is provided to apply to a replacement work of a high-load shoe by securing safety with rapid construction and economical efficiency. CONSTITUTION: The upper structure pulling method using a girder type bracket supported by a steel wire(3) and a saddle(2) comprises the steps of: installing a saddle(2) on right and left sides of a bridge seat where a shoe(9) is placed; placing a steel wire(3) over the saddle(2); fixing the center of the saddle(2) on the upper end of a pier(10) by a fixing anchor, then connecting both sided to a girder; and pulling up an upper structure by using a hydraulic jack(7).
公开号:KR20020038652A
申请号:KR1020020022208
申请日:2002-04-23
公开日:2002-05-23
发明作者:김진수
申请人:김진수；윤영재；티앤알비 주식회사；
IPC主号:

专利说明:

Method and apparatus for lifting upper structure using girder type bracket supported by steel stranded wires and saddles}
[14] The present invention relates to an upper structure lifting method and apparatus, and more specifically, the construction is simpler than the existing gasket or concrete bracket method, and is excellent in economics and construction speed as well as excellent safety is secured by the existing concrete bracket or The present invention relates to an upper structure lifting method and a lifting device using a girder-type bracket supported by a stranded wire and a saddle that can be applied to a replacement of a heavy load bridge device that is difficult to work with a steel bracket.
[15] Conventional impression method when replacing the bridge device is to install a steel gage on the front of the piers or concrete brackets after placing the jack to raise the upper structure. In the case of road bridges or river bridges, it is difficult to install steel gages due to obstruction by vehicles or running water under the bridge, and when the concrete brackets are integrally installed on the front of the pier, surface strength is increased due to deterioration of existing bridge piers. If it is significantly lowered or the surface damage is serious, no behavior can be expected, and even if the upper load is large, it is difficult to apply.
[16] As described above, in the case of the conventional construction method, the construction method or the concrete bracket method, it is difficult to install the temporary products in the case of an overpass type or a river crossing bridge passing through the city, and in the case of the concrete bracket, formwork, concrete pouring, curing, etc. Due to the complexity of the work and poor working conditions, special attention must be paid to safety accidents.
[17] The technical problem to be achieved by the present invention is to solve the above-mentioned disadvantages of the prior art, it is excellent in safety because it supports the vertical force in the center of the piers using the strands and saddles, and thus applied to the lifting of the superstructure of high load It is possible to install the pre-fabricated hardware on the pier easily and then raise the upper structure. Therefore, the construction speed is faster and less steel is used compared to the existing construction method. It is an object of the present invention to provide a superstructure lifting method and apparatus using a girder bracket supported by a saddle.
[1] Figure 1 is an installation front view of the girder bracket applied to the present invention.
[2] FIG. 2 is an installation side view of the girder bracket of FIG. 1. FIG.
[3] 3 is a plan view of the installation of the girder bracket of FIG.
[4] Figure 4a is a detailed front view of the birds applied to the present invention.
[5] 4B is a detailed plan view of the birds of FIG. 4A.
[6] 4C is a detailed cross-sectional view taken along the line A-A of FIG. 4A.
[7] 4D is a detailed cross-sectional view taken along the line B-B in FIG. 4A.
[8] <Description of the symbols for the main parts of the drawings>
[9] 1 ... girder bracket, 2 ... saddle
[10] 3 ... strand, 4 ... H-beam
[11] 5 ... upper plate, 6 ... fixed anchor
[12] 7 hydraulic jacks, 8 beams
[13] 9 ... stairway device, 10 ... pier
[18] The present invention, in order to achieve the above technical problem, in order to replace the bridge device of the bridge, in the lifting method to raise the upper structure using a hydraulic jack, the saddle on the left and right sides of the bridge surface on which the bridge device is placed step; Mounting the strand on the saddle; Mounting the strand on the saddle and fixing the center of the birds with a fixed anchor at the top of the piers and connecting both sides to the girder; And it provides an upper structure lifting method using a girder-type bracket supported by the strand and saddle comprising the step of raising the upper structure using the hydraulic jack.
[19] The present invention, in order to achieve the above technical problem, in order to replace the bridge device of the bridge, the lifting device for lifting the upper structure, each of the girder brackets located before and after the bridge; Saddles are installed on the left and right sides of the seat surface on which the seat device is placed; A strand that rests on the birds across the piers of the piers; And a hydraulic jack installed on the left and right sides of the bridge surface to raise the upper structure, and the load applied to the jack is transferred to the saddle by the load from the bracket at the end of the girder to balance the saddle point. To provide an impression device for supporting the load of.
[20] Preferably, it is characterized in that the mounting plate on the top of the bracket to prevent the inclination of the girder due to the eccentric load.
[21] Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.
[22] Impression method of the upper structure of the present invention is an economical method that can solve the above-mentioned problems of the prior art, the present invention is a method applied when replacing the bridge device of the existing bridge not only damages the structure of the bridge but also delays the air and It was created to solve economic problems. The concept of mechanics structure applied in the present invention is similar to the principle that the main tower of suspension bridge supports the bridge as a cable, so that the existing pier plays the role of the main tower of the truss bridge, and the cable is configured to perform the strand.
[23] The present invention places the support at the center of the top of a solid piers, making the bearing capacity of the vertical reaction force very good. Therefore, it is more stable than the steel bracket or concrete bracket, so it can be applied to the replacement of the high load bridge device, and the simple structure of the prefabricated steel is installed on the top of the bridge to make the economical impression of the upper structure possible.
[24] 1 is a front view of the installation concept of the girder bracket using a stranded wire, FIG. 2 is a side view of the installation concept, FIG. 3 is a plan view of the installation concept, Figures 4a to 4d is a detailed saddle.
[25] The lifting method of the upper structure of the present invention is a method that can simply raise the upper structure by installing the saddle (2) on the left and right sides of the bridge surface in the field and through the strand (3) to connect both sides to the girder (1). With the girder bracket 1, the strand 3, the saddle 2 and the hydraulic jack (7). The girder bracket 1 is positioned before and after the piers 10, respectively, and the strand 3 is provided with the saddle 2 across the piers 10, respectively. The load applied to the jack 7 is transferred from the bracket 1 at the end of the girder through the strand 3 to balance the saddle 2 to the point to support the load of the superstructure.
[26] An operation according to the configuration of the present invention described above with reference to Figures 1 to 4D will be described. The lifting device of the upper structure of the present invention comprises a girder bracket (1), strand (3), saddle (2), hydraulic jack (7) for the upper impression. The girder bracket 1 is positioned before and after the piers, respectively, and the strand 3 is mounted on the saddle 2 across the top of the piers 10. The load acting on the jack 7 is transferred from the bracket 1 at the end of the girder through the strand 3 to balance the saddle 2 to the point to support the load. The vertical load is mainly received at the support points of the saddles (2) installed on the top of the piers (10), the fastening plate (5) on the top of the bracket (1) prevents the girder from tilting due to the eccentric load and the saddle (2) is fixed anchor It is fixed to the pier upper part 10 by (6).
[27] This method supports the vertical load of the upper structure (beam) 8 by balancing it with the strand 3 which is mounted on the saddle 2 and fixed to both sides of the girder 1 as in the suspension bridge, and on the top of the girder. It is a technique to prevent the inclination of the girder by the eccentric load by installing the hook plate (5).
[28] As described above, the present invention can be easily applied in the form of supporting from the top of the pier when the construction is difficult because of obstacles such as emergency construction or river bridge or road bridge. In this method, since the supporting part becomes the center part of the top of the pier, it is possible to apply to the heavy load that is difficult to raise with the existing concrete bracket or steel bracket, and it is economical by minimizing the use of the steel and occurs when applying the conventional technology. Problems such as pier damage were solved. In addition, by improving the workability, safety was achieved through rapid construction and a clear structure system.
[29] Although the preferred embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains may make various changes without departing from the spirit and scope of the present invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Therefore, changes of the embodiments of the present invention will not be able to escape the technology of the present invention.

权利要求:
Claims (4)
[1" claim-type="Currently amended] In the lifting method of raising the upper structure by using a hydraulic jack to replace the bridge device of the bridge,
Installing saddles on left and right sides of a seat surface on which the seat device is placed;
Mounting the strand on the saddle;
Mounting the strand on the saddle and fixing the center of the birds with a fixed anchor at the top of the piers and connecting both sides to the girder; And
Including the step of raising the upper structure using the hydraulic jack, the upper structure lifting method using a girder-type bracket supported by the strand and the saddle mainly subjected to the vertical load at the saddle support point installed on the top of the piers.
[2" claim-type="Currently amended] The method of claim 1, wherein the mounting plate on the upper end of the bracket to prevent the girder from tilting due to the eccentric load.
[3" claim-type="Currently amended] In the pulling device for raising the upper structure in order to replace the bridge device of the bridge,
Girder brackets positioned before and after the piers, respectively;
Saddles are installed on the left and right sides of the seat surface on which the seat device is placed;
A strand that rests on the birds across the piers of the piers; And
And a hydraulic jack installed on the left and right sides of the bridge surface to raise the upper structure, and the load acting on the jack is transferred to the saddle by the load from the bracket at the end of the girder to balance the saddle to the point. Impression device supporting load.
[4" claim-type="Currently amended] According to claim 3, Upper structure lifting device characterized in that the mounting plate on the top of the bracket to prevent the inclination of the girder due to the eccentric load.

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同族专利:

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公开号 | 公开日

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KR100487574B1|2005-05-06|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-04-23|Application filed by 김진수, 윤영재, 티앤알비 주식회사

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2002-04-23|Priority to KR20020022208A

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2002-05-23|Publication of KR20020038652A

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2005-05-06|Application granted

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2005-05-06|Publication of KR100487574B1

优先权:

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申请号 | 申请日 | 专利标题

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KR20020022208A|KR100487574B1|2002-04-23|2002-04-23|Method and apparatus for lifting upper structure using girder type bracket supported by steel stranded wires and saddles|