KR101560547B1

KR101560547B1 - A Device for bridge dismantle using the strand jack

Info

Publication number: KR101560547B1
Application number: KR1020150077389A
Authority: KR
Inventors: 이봉환
Original assignee: 주식회사성수프론티어; 이봉환
Priority date: 2015-06-01
Filing date: 2015-06-01
Publication date: 2015-10-16

Abstract

The present invention relates to a barge and a barge which are disposed upright in a vertical phase with a gap therebetween so as to compensate errors due to differences in mechanical characteristics of respective strand jacks when lifting bridges, A jack base disposed on an upper end of the lift towers in the support member; a strand jack provided on an upper surface of the jack base and adapted to pull or unwind the strand wire; And a lifting means connected to the supporting member and vertically lifting up and down from the supporting member and having a lift frame in which an upper plate and a pier are placed on an upper surface thereof, the apparatus comprising: Wherein the adjusting means includes a pressing cylinder disposed between the jack base and the support member at a top end of the lift tower and is fixed to a rod of the pressure cylinder so that the jack base is moved up and down, The elevation angle of the lift frame is corrected in accordance with the horizontal angle of the upper frame and the bridge pierced in the lift frame so that the correction of the elevation angle of the upper plate and the bridge pier that is raised and lowered by the lift frame is maintained The present invention also provides a bridge disassembling apparatus using a strand jack.

Description

[0001] The present invention relates to a device for disassembling a bridge using a strand jack,

The present invention relates to a bridge disassembling apparatus using a strand jack for lifting and dismounting an upper plate and a pier of a bridge by using a strand jack installed on a lift tower of a barge line. More particularly, In order to improve the structure of the bridge, it is necessary to correct the error according to the difference of the mechanical characteristics of the respective strand jacks when lifting the bridge, To a bridge disassembling apparatus using a strand jack.

Generally, bridges in the form of a bridge across a river are composed of a lower structure consisting of alternation and piers, and an upper structure consisting of an upper plate constructed above the lower structure.

In the above, the upper plate constituting the upper structure is installed and installed so that expansion or contraction can be performed according to the expansion and contraction stress applied to the upper structure after the construction.

Such bridges can be used through maintenance work such as replacing or installing new tops, piers and shifts when the use of the bridges is limited due to the deterioration of the upper structures such as the top plate, Lt; / RTI >

In order to dismantle the bridges for repair and new construction of bridges as described above, in order to dismantle the bridges, a separate road or bridge is installed on the side of the bridge in order to provide a work space for the dismantling equipment for dismantling the upper structure, And the demolition work was carried out.

However, the conventional demolition method has a problem in that the demolition cost is increased due to inconvenience and complication when applied to a bridge across a river, and there is a problem in that it is unsafe to prevent the safety of the operator .

Accordingly, the present applicant has proposed a demolition apparatus and method for solving the problems of the conventional demolition method as described above.

Korean Patent Application No. 10-2013-0126718 (name: a bridge disassembling apparatus using a strand jack and a method thereof) proposed by the present applicant discloses a method of disassembling a bridge made up of a bridge and an upper plate of a bridge, An apparatus, comprising: a pair of barges; A connecting portion connecting the pair of barges; A supporting part installed on a pair of barges connected to the connecting part to support the top plate and the pier in a lifting position; And a lifting tower mounted on the support part and lifting the upper plate and the pier, wherein the support part includes a lift tower installed at an interval to accommodate the lifting frame of the lifting part on the pair of barges; And a jack base for connecting and fixing the upper end of the lift tower; The lifting unit includes: a strand jack mounted on an upper surface of the jack base; A strand wire pulled by operation of the strand jack to pull the top plate and the pier; A lift frame having the strand wire fixed to the barge by being coupled to the fixing hole; And a fixing port fixed to the end of the strand wire coupled to the fixing hole of the lift frame and closely attached to the bottom surface of the lift frame.

That is, the upper plate is placed on the lift frame moving up and down from the lift tower through the driving of the strand jack, so that the lifting operation is performed.

Therefore, lift frame installed on barge line can lift bridge easily by lifting frame with strand jack and moving along the muling line to land area of land to dismantle bridge. By improving work efficiency by improving worker's safety, Can be shortened.

However, in the Korean Patent Application No. 10-2013-0126718 proposed by the applicant of the present invention, a bridge disassembling apparatus using a strand jack and a method thereof, when lifting up and lowering an upper plate placed on the lift frame, There has been a problem in that it is difficult to maintain the balance of the top plate in accordance with an error according to each mechanical characteristic of a strand jack.

That is, there is a problem that it is difficult to maintain the balance of the upper plate because minute clearances are generated when the fine strand jack is operated and the lift frames on one side rise and fall with different time intervals relative to the lift frames on the other side.

Particularly, there is a problem that the workability is deteriorated due to an increase in the risk of occurrence of safety accidents due to the balance collapse of the upper plate depending on the working characteristics of the water surface.

It is an object of the present invention to provide a bridge disassembly apparatus using a strand jack of Korean Patent Application No. 10-2013-0126718 proposed by the applicant of the present invention, , It is possible to stabilize the horizontality of the bridge by correcting the slope error of the bridge in real time according to the difference of the mechanical characteristics of the respective strand jacks when lifting the bridges so as to realize the stability of the dismantling work. And a bridge disassembling apparatus using the bridge.

In order to accomplish the above object, according to the present invention, there is provided a bridge disassembly apparatus using a strand jack, comprising: a barge line; a pair of support members formed of a lift tower arranged upright in a vertically- A jack base disposed on an upper end of the lift towers of the support member, a strand jack provided on an upper surface of the jack base to pull or untie the strand wire, And a lifting means having a lift frame in which an upper plate and a pier are positioned on an upper surface of the bridge, the lifting device comprising: A pressure cylinder provided at the uppermost end of the support member and fixed to the upper end of the rod base at a lower surface of the jack base; a hydraulic pump for applying a hydraulic pressure to the pressure cylinder; A hydraulic tank for replenishing the hydraulic pressure to the hydraulic pump, and a control means for controlling the driving of the hydraulic pump; A top plate and a pier to be lifted are provided with a detection sensor for detecting the level of the top plate and the pier and for applying the sensed data to the control means; Detecting the horizontality of the top plate and the bridge obtained in real time and controlling the hydraulic pump through the control means to adjust the position of each of the jack bases through the pressurizing cylinder, Correcting the lift-up / down position of the lift frame according to the horizontal angle of the pier; And the horizontal angle of the upper plate and the bridge pierced by the lift frame is maintained in real time.

The bridge dismounting apparatus using the strand jack according to the present invention as described above can correct errors due to differences in mechanical characteristics of the respective strand jacks when the bridges are lifted by correcting the inclination of the bridges through the correcting means, Can be stably maintained in real time, and the stability of the dismantling operation can be realized.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic front view showing a bridge disassembling apparatus using a strand jack according to an embodiment of the present invention; FIG.
Fig. 2 is a schematic side view showing a bridge disassembling apparatus using a strand jack according to the embodiment. Fig.
Fig. 3 and Fig. 4 are schematic side views showing the use state of the bridge disassembling apparatus using the strand jack according to the embodiment. Fig.
Fig. 5 is a schematic view showing a correction means applied to a bridge disassembling apparatus using a strand jack according to the present embodiment. Fig.
6 is a schematic view showing a use state of a correction means applied to a bridge disassembling apparatus using a strand jack according to the present embodiment.

Hereinafter, a bridge disassembling apparatus using a strand jack according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 to 6 are views showing a bridge disassembling apparatus using a strand jack according to an embodiment of the present invention. The bridge disassembling apparatus 1 using the strand jack according to the present embodiment includes a bridge 10, (2) adapted to run along a water surface, wherein the barge (2) is provided with an upper plate (11) and a bridge (12) A lifting means 3 is disposed on the barge 2 and a pair of supporting members 4 composed of a lift tower 41 arranged vertically with a space therebetween in the barge 2 As shown in Fig.

That is, after approaching the bridges 10 to be lifted through the barge 2, the upper plate 11 and the bridges 12 are lifted and disassembled through the lifting means 3.

Accordingly, by easily lifting the bridge 10 and moving it along the moving line to the land amount of the land, the bridge is dismantled, so that the safety of the worker is improved and the work efficiency is improved and the construction period is shortened.

In the above, it is preferable that the barge 2 is composed of a pair of barges connected to the connecting portion 21.

The lifting means 3 includes a jack base 31 disposed at the top of the lift towers 41 in the support member 4 and a strand wire 32 provided on the top surface of the jack base 31. [ A strand jack 33 for pulling or pulling the strand wire 32 and a strand wire 32 connected to an end of the strand wire 32 so as to vertically move up and down in the support member 4 and a top plate 11 and a pierce 12 And has a lift frame 34 to be stowed.

That is, the lift frame 34 reciprocates vertically on the support member 4 in accordance with the state of the strand wire 32 pulled and unwound through the strand jack 33, ) And the bridge pier 12 to lift it.

The support members 4 have lift towers 41 installed at intervals that can accommodate the lift frames 34 and the upper ends of the lift towers 41 are connected to the jack base 31 So as to be fixed.

That is, in one lift frame 34, both ends are positioned respectively between a pair of lift towers 41 having an interval therebetween, so that one support member 4 is supported by four lift towers 41, and it is most preferable that the strand jack 33 and the jack base 31 connecting the upper ends of the lift towers 41 are provided at both ends, respectively.

3 and 4, both sides of the upper plate 11 and the pier 12 of the bridges 10 to be lifted are placed in a pair of lift frames 34 and lifted up, respectively .

Therefore, both ends of the upper plate 11 and the pier 12 to be lifted can be stably supported and fixed to perform lifting work.

In the bridge disassembling apparatus 1 according to the present embodiment as described above, the jack base 31 includes a correcting means 5 including a pressurizing cylinder 51 provided at the upper end of the lift tower 41, As shown in Fig.

A correction means 5 including a pressurizing cylinder 51 provided at the uppermost stage of the lift tower 41 is further provided between the jack base 31 and the support member 4.

That is, the position of the jack base 31 is corrected when a clearance is generated at the elevating / lowering speed of the pair of lift frames 34 through the correcting means 5 and an error occurs.

This makes it possible to compensate for errors due to differences in the mechanical characteristics of the respective strand jacks 33 during the lifting operation of the bridge 10 through the correction means 5 and to prevent the horizontal movement of the upper plate 11 and the bridge 12, So that the stability of the dismantling operation can be realized.

The jack base 31 is fixed to the rod 52 of the pressing cylinder 51 and its position is adjusted by the driving of the pressing cylinder 51 so that the strand jack 33 The elevating and lowering positions of the lift frame 34 are corrected in accordance with the horizontal degrees of the upper plate 11 and the bridge pierced in the lift frame 34. [

The correction means 5 includes a pressure cylinder 51 provided at the uppermost end of the support member 4 and having a bottom surface of the jack base 31 fixed to the upper end of the rod 52, A hydraulic pump 54 for applying a hydraulic pressure to the hydraulic pump 53 and a control means 55 for controlling the driving of the hydraulic pump 53 I have.

That is, the hydraulic pump 53 is driven through the control of the control means 55 to adjust the position of the jack base 31 through the pressure cylinder 51.

It is preferable that the four pressing cylinders 51 provided on the supporting member 4 on which the one lift frame 34 is disposed are driven through one hydraulic pump 53, The position of the jack base 31 can be adjusted while the horizontality of the jack base 34 is maintained, thereby ensuring stability.

A sensing sensor 56 for sensing a horizontal level is attached to the upper plate 11 and the bridge 12 to be lifted and the measured sensing data is applied to the control means 55.

That is, by controlling the hydraulic pump 53 through the control means 55 to correct the rising and falling positions of the lift frame 34 in accordance with the horizontality of the upper plate 11 and the pier 12 obtained in real time The top plate 11 and the bridge bridge 12 to be lifted can be maintained.

Hereinafter, the operation and effect of the bridge disassembling apparatus using the strand jack according to the present embodiment will be described in detail.

First, when the bridge 10 is to be disassembled by using the bridge disassembling apparatus using the strand jack according to the present embodiment, as described above, after approaching the bridge 10 to be lifted through the barge 2 , The upper plate 11 and the pier 12 are lifted through the lifting means 3.

At this time, both sides of the upper plate 11 and the pier 12 of the bridge 10 to be lifted are placed on a pair of lift frames 34 and lifted.

As described above, during the lifting of the upper plate 11 and the bridge pier 12, errors due to differences in mechanical characteristics of the respective strand jacks 33 are generated, and the horizontal planes of the upper plate 11 and the bridge pier 12 are shifted If the balance is damaged, it is sensed through the sensing sensor 56 and the hydraulic pump 53 is driven by the control means 55 to move the position of the jack base 31 through the pressure cylinder 51 .

The height of the strut jack 33 provided on the upper surface of the jack base 31 is adjusted so that the height of the upper frame 11 and the bridge 12, (4) is corrected.

It will be apparent to those skilled in the art that various modifications and equivalent arrangements may be made therein without departing from the scope of the present invention as defined by the appended claims and their equivalents. . Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Bridge disassembly device 2: Barge
21: connection 3: lifting means
31: Jack base 32: Strand wire
33: Strand Jack 34: Lift frame
4: support member 41: lift tower
5: correction means 51: pressure cylinder
52: load 53: hydraulic pump
54: hydraulic tank 55: control means
56: Detection sensor

Claims

A pair of support members including a barge and a lift tower disposed upright in a vertical phase with a gap therebetween, a jack base disposed at an upper end of the lift towers in the support member, And a lifting means connected to an end of the strand wire and lifting up and down to a vertical phase from the supporting member and having a lift frame on which an upper plate and a pier are placed, A bridge disassembly apparatus using a strand jack, comprising:
Between the jack base and the support member,
A hydraulic cylinder which is provided at the uppermost end of the support member and to which the bottom surface of the jack base is fixed at the upper end of the rod, a hydraulic pump which applies hydraulic pressure to the pressure cylinder, a hydraulic tank which replenishes the hydraulic pressure to the hydraulic pump, A correcting means including control means for controlling the driving of the hydraulic pump is provided;
A top plate and a pier to be lifted are provided with a detection sensor for detecting the level of the top plate and the pier and for applying the sensed data to the control means;
Detecting the horizontality of the top plate and the bridge obtained in real time and controlling the hydraulic pump through the control means to adjust the position of each of the jack bases through the pressurizing cylinder, Correcting the lift-up / down position of the lift frame according to the horizontal angle of the pier;
Wherein the horizontal and vertical elevations of the upper plate and the bridge bridge are raised and lowered by the lift frame in real time.

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