KR101574151B1 - Method for disassembling bridge using beam launcher with auto anchorage, location sensor and weight sensor - Google Patents

Abstract

By installing three automatic anchorages on the beam launcher, it is possible to lift the girders dismounted from the upper part of the truss by the main winch and the auxiliary winch so that any of the front, rear, left and right sides can be moved to the unloading and loading place, By installing a weight sensor at the top of the winch wire of the main winch, the worker can confirm the safety of the beam launcher when the bridge is disassembled by displaying the weight of the disassembled girder during lifting. In addition, The main winch and the auxiliary winch are lifted and moved to the left or right side of the winch frame and then return to their original position to prevent the beam launcher from being turned on launch You can use the beam launcher with automatic anchorage, position sensor and weight swing The goody method is provided.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of disassembling a bridge using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing,

More particularly, the present invention relates to a method of disassembling a bridge by using three automatic anchorages, a location sensor, and a weight sensor in a beam launcher Respectively, to dismantle the bridge.

Generally, a bridge is a civil engineering structure such as a bridge or the like which is installed over an overpass or a river to be installed on a road. Such bridges are largely composed of a pier (including alternation), a girder installed on the pier, And a slab to be constructed. At this time, the girders are composed of a plurality of PSC beams or IPC beams arranged at regular intervals on the piers.

In the case of a typical bridge construction method, a plurality of piers (including alternations) are built and a plurality of beams are mounted on the piers, where the beams are not fixed to the piers and are mounted via a calibration device. After mounting a plurality of beams on the bridge piers in this manner, the bridge is completed by installing the slab concrete on top of the beams, for example.

In recent years, research on construction methods by a method of prefabricating a member constituting a structure by precast and assembling it in the field has actively been conducted, and it is possible to secure the quality of the structure regardless of the situation at the site .

For example, in the case of PSC girder bridges or IPC girder bridges, only the bridge piers are installed in the field by casting method, and pre-fabricated precast girders are assembled in the field. At this time, the prefabricated prefabricated girder is installed so as to serve as a beam in the construction of a structure such as a bridge. For example, a full span launching method (FSLM) is a method in which all the girders of a bridge are pre-fabricated in a production site near the site, and are sequentially installed at the top of the bridge.

On the other hand, a crane is a mechanical device for lifting a cargo and transporting the cargo up and down, right and left and forward and backward, and the type of crane and the manner of motion can be changed according to the purpose of use. For example, when a bridge that crosses a mountainous terrain, a swamp or a river or the sea is used, a tower crane used in a flat land can not be used. Therefore, a beam with a hoist The PSC beam is taken out by using a transverse movement truck (winch) at the top of the door type installer, and then the PSC beam is taken out from the door type installer, A plurality of beams are installed at predetermined positions on the front and rear alternating upper and lower surfaces. In the case of such a crane, the structure for installation and advancement of the girder is complicated, and the construction method is also complicated, so that it is not easy to work.

Beam Launchers have been used in recent mountainous areas to safely and efficiently complete bridge construction work without heavy equipment such as cranes. By using such a beam launcher, the PSC beam or the IPC girder can be safely installed, and the road bridge can be constructed without crane transmission and girder fall.

Meanwhile, in order to remove a girder which is installed continuously in a longitudinal direction (throttling direction) on a pier or an alternation which constitutes a bridge, and which is installed in parallel in a lateral direction, A method of lifting the girder with a lifting device such as a crane and then unloading the lower part of the bridge is repeated to finally remove the bridge pier and the girder.

Since the method of demolishing a bridge by such a method is a method in which a lifting device such as a crane is placed around a bridge and the girder is unloaded to a conveying vehicle located on the lower side of the bridge, it is usually used as a work site for demolition work, Site for installation, minimum work radius to prevent various safety accidents within the working radius of the lifting device, and site for securing the access road of the transportation vehicle for transporting the unloaded girder. In case that it is difficult to secure the above-mentioned work site as in the case of a downtown area, there is a great possibility of occurrence of a safety accident, and moreover, the transportation is obstructed until the removal of the bridge, It is true.

On the other hand, as a prior art, Korean Patent No. 10-605089 discloses an invention entitled " launching girder system and bridging method using the same, which will be described with reference to FIG.

1 is a front view and a side view showing a state where a launching truss structure and a moving lane are installed on a bridge for demolishing a bridge using a launching girder system according to a conventional technique.

As shown in FIG. 1, the launching girder system 30 according to the related art is installed so as to be formed on the bridge pier 10 after removing the girder 20 constituting a span in advance. The launching girder system 30 according to the prior art has a support 31 formed at an alternating or piercing angle at least higher than the height of the girder in the transverse direction; And a moving carriage 40 which is formed on the support 31 in a longitudinal direction between the piers or alternation and on which the first loading means 41 is formed. And a launching truss structure (32) formed on the support so that at least two of them are facing each other.

A loading space in which the remaining girder 20 is moved and unloaded is secured by removing the girder 20 provided between the piers or the alternations 10a and 10b constituting one span by using the lifting device, A transverse moving means 33 is provided at the lower portion of the bridge, extending transversely across the bridge 31 installed transversely to the pier or alternate upper portion, There is provided a launching girder system 30 including a launching truss structure 32 provided with a moving truck 40 provided with a first loading means 43 capable of loading and unloading, The operator moves the girder to the unloading work space in a state of being pulled up, and then performs the unloading operation repeatedly.

In the case of the launching girder system 30 according to the prior art, in order to unload the girders, one girder is removed to unload the girders so that the work site or work space is extended to the side of the bridge And also the removal of other girders also allows the loading girders to be unloaded after the other girders are carried to the loading and unloading work space, thereby minimizing the obstruction of the work site and the surrounding traffic flow for bridge demolition . In addition, in the launching girder system according to the related art, the launching truss structure constituting the launching girder system 30 and the moving truck installed on the launching truss structure can freely move in the lateral and longitudinal directions, respectively, The girder carrying operation can be easily performed.

However, in the case of the bridge dismantling method using the launching girder system according to the related art, the dismantling operation is limited and takes a lot of time because it has a function of simply carrying the bridge in only one direction.

As described above, most of the methods for lifting a heavy object and moving the object to a desired position during the dismantling of a bridge according to the related art are mostly using a hypothetical vent system, a lorry system, and a rail system. However, in recent years, Therefore, the need for improved bridge dismantling methods is increasing.

Korean Patent No. 10-605089 filed on November 28, 2003, entitled "Launching girder system & Korean Patent No. 10-1095449 filed on Sep. 19, 2011, entitled "Bridge disassembling device using bridge device and bridge disassembling method" Korean Patent No. 10-1095450 filed on Sep. 19, 2011, entitled "Method of dismantling a bridge using elevating means" Korean Patent No. 10-1026012 filed on November 25, 2010, Title of the invention: "Dismantling method of bridges using bridges integrated with bridge piers" Korean Registered Patent No. 10-1193608 filed on April 18, 2012, entitled "Beam Launcher with anchor device for bridge installation" Korean Registered Patent No. 10-1200986 filed on Apr. 18, 2012, entitled "Beam Launcher with Service Winch for Bridge Hybrid"

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an automatic anchorage system for a vehicle, The present invention is to provide a method of disassembling a bridge by using a beam launcher equipped with an automatic anchorage, a position sensor and a weight swing, which can be moved to a loading and unloading place anywhere on either side.

Another object of the present invention is to provide an automatic anchorage device capable of displaying the weight of a disassembled girder during lifting by providing a weight sensor on the top of a winch wire of a main winch, , A position sensor and a beam launcher equipped with a weight swing.

Another object of the present invention is to provide a position sensor in the middle of a winch frame of a main winch so that a main winch and an auxiliary winch at the time of lifting a bridge located outside the left and right sides of the disassembled girder can be moved left or right from the winch frame And a beam launcher equipped with an automatic anchorage, a position sensor, and a weighing vessel, which can accurately return to the original position and prevent the beam launcher from being turned upon launch, .

As a means for attaining the above-mentioned technical object, a method of disassembling a bridge using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing according to the present invention is characterized in that a bridge truss, a main winch, an auxiliary winch, A method of disassembling a bridge using a beam launcher with rollers, the method comprising: a) laying a beam launcher on a bridge to be disassembled; b) cutting and dismantling the girder on the bridge; c) lifting the disassembled girder using a main winch and an auxiliary winch at the top of the mold truss of the beam launcher; d) displaying the weight through the weight sensor installed on the upper side of the winch wire of the main winch when lifting the disassembled girder; e) detecting the position of the main winch by a position sensor installed in the middle of the winch frame of the main winch before lifting the disassembled girder and moving to the loading place; f) stably fixing the beam launcher by selecting one of the first to third automatic anchorages provided below the beam launcher, respectively, when the transported girder is transported; And g) moving the disassembled girder to a loading and unloading site using the main winch and auxiliary winch of the beam launcher.

The first to third automatic anchorages in the step f) lift up the girders, which are disassembled from the main winch and auxiliary winch, respectively at the upper part of the mold truss, .

Here, the first to third automatic anchorages are installed in consideration of the length of the disassembly bridges at the front part, the middle part and the tail part of the lower part of the beam launcher, respectively. When the girders are disassembled into alternate sides, It is possible to match the slope of the longitudinal gradient with the stable stationary role due to the movement of the slider.

Here, the first to third automatic anchorages are used when the first automatic anchorage, which is a front anchorage, is moved to the front part based on the middle of the beam launcher, and the second automatic anchorage which is an intermediate anchorage is used when moving to the left and right And the third automatic anchorage, which is the rear anchorage, is used to move to the rear portion.

In this case, a front hydraulic cylinder and a rear hydraulic cylinder each having a distance measuring device attached thereto are provided at the front portion and the rear portion of the beam launcher, respectively, and the front and rear hydraulic cylinders are formed as double acting cylinders, And can stably support the beam launcher after arriving at the shift.

The front hydraulic cylinder and the rear hydraulic cylinder accurately measure the rod lengths of the front hydraulic cylinder and the rear hydraulic cylinder at the time of performing the support operation of the beam launcher and fix the hydraulic cylinders in the vertical block in the vertical block do.

Here, the front hydraulic cylinder and the rear hydraulic cylinder generate strokes by operating the wireless remote controller, and the distance is accurately measured by the distance measuring machine attached to the heads of the front hydraulic cylinder and the rear hydraulic cylinder, respectively , A horizontal machine attached to each of the front hydraulic cylinder and the rear hydraulic cylinder is visually inspected and then fixed to the vertical block in an automatic vertical form.

Here, the weight sensor in the step d) is attached to the winch wire of the main winch, and it is possible to prevent the breakage of the beam launcher due to the identification of the lifting weight and the excessive weight when the lifted girder is pulled up.

Here, the position sensor of step e) is installed in the middle of the winch frame of the main winch, and the main winch and the auxiliary winch move to the left or right side of the winch frame when the bridge is lifted outside the left and right sides of the disassembled girder. The position can be detected so as to return accurately to the original position.

Here, the position sensor operates an alarm for returning the home truss to the home truss in order to prevent the beam launcher from falling due to lifting and movement of the winch frame, Safety and conduction and short circuit can be prevented.

The step g) includes: g-1) transporting the disassembled girder to the unloading and loading place using the beam launcher; g-2) placing the disassembled girder on a waiting trailer using the main winch and auxiliary winch of the beam launcher; g-3) transferring the disassembled girders to the trailer; And g-4) returning the main winch and auxiliary winch of the beam launcher to their original positions.

According to the present invention, by installing three automatic anchorages on the beam launcher, the girders dismounted from the upper part of the truss by the main winch and the auxiliary winch can be lifted and moved to the unloading and loading place regardless of the designated transportation place .

According to the present invention, by providing a weight sensor at the upper end of the winch wire of the main winch, the weight of the disassembled girder can be displayed to relieve the operator of the safety of the beam launcher during the bridge disassembly work.

According to the present invention, by installing a position sensor in the middle of the winch frame of the main winch, the main winch and the auxiliary winch at the time of lifting the bridge located outside the left and right sides of the disassembled girder are moved from the winch frame to the left or right, It is possible to return accurately to the original position and to prevent the beam launcher from being turned on at the time of launching.

According to the present invention, a method of disassembling a bridge by using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing is used for disassembling a high bridge of 40 m or more, for a marine connection bridge, for disassembling a river cross section, The present invention can be easily applied to the disassembly of a bridge.

1 is a front view and a side view showing a state where a launching truss structure and a moving lane are installed on a bridge for demolishing a bridge using a launching girder system according to a conventional technique.
Figs. 2A and 2B are views illustrating a beam launcher and a bridge using the beam launcher. Fig.
3 is a side view and plan view of the beam launcher.
4 is a view showing that an automatic anchorage, a position sensor, and a weight indicator are installed in a beam launcher according to an embodiment of the present invention.
5 is an operational flowchart of a method of disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.
6 is a view showing that a beam launcher is installed on a bridge for bridge disassembly according to an embodiment of the present invention.
FIG. 7 is a diagram specifically showing a position sensor according to an embodiment of the present invention installed on a beam launcher.
FIG. 8 is a view specifically showing a weight sensor according to an embodiment of the present invention installed on a beam launcher. FIG.
9 is a view illustrating an automatic anchorage process in an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.
10 is a diagram illustrating a hydraulic cylinder applied to a method of disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.
FIG. 11 is a view illustrating the disassembly of a bridge to a first point using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.
FIG. 12 is a diagram specifically illustrating a process of transporting the disassembled bridge shown in FIG. 11 to a first point.
13 is a view illustrating the disassembly of a bridge to a second point using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.
FIG. 14 is a diagram specifically illustrating a process of transporting the disassembled bridge shown in FIG. 13 to a first point.
15A to 15C are views showing a process of disassembling a bridge on the side using a beam launcher according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

First, Korean Patent No. 10-1193608, filed and registered as a patent by the applicant of the present invention, discloses an invention entitled "Beam Launcher with anchor device for bridge installation" -1200986 discloses an invention entitled " Beam Launcher with Service Winch for Bridging Hybrid ", which is incorporated herein by reference and forms part of the present invention.

2A and 2B are views illustrating a beam launcher and a bridge using the beam launcher, wherein FIG. 2A is a view illustrating a beam launcher, FIG. 2B is a view illustrating a bridge bridge construction using a beam launcher 3 is a side view and a plan view of the beam launcher.

Referring to FIG. 2A, the beam launcher 100 includes a prestressed concrete beam / PSC girder, an incrementally prestressed concrete girder / segment beam or a steel box A main winch 120, an auxiliary winch 130, a transverse rail 150 and a under roller 160. The main trunk 110, the main winch 120, the auxiliary winch 130, the transverse rail 150, and the under roller 160, And the like.

As shown in FIG. 2B, the bridge launcher 100 for a bridge is constructed by using two winchers including a main winch 120 and an auxiliary winch 130, and a load of 160 tons and a cargo 220 ), For example, lift and mount the PSC beam to the top of pier 210.

The beam launcher 100 also allows qualified equipment operators to move the main winch 120 and the auxiliary winch 130 using a remote control device and to control each drive under roller 150 ) To lift and load up to 160 tons of cargo 210.

In addition, the beam launcher 100 is designed and constructed to have an essential safety and warning system to eliminate or reduce any expected hazards during operation or maintenance.

The beam launcher 100 can be used as a bridge for overhead bridge operation such as when working at a high altitude of 40 m or more (for example, a transverse valley region, a mountain canyon region), a sea bridge bridge, It can be used for hypothesis. For example, such a beam launcher 100 may be used to provide a PSC beam / PSC girder for carrying a PSC beam / PSC girder, which is pylon 210, It is highly effective in the construction of mountainous areas, valley transverses, and river crossings. In particular, mountainous areas are evaluated as suitable for many domestic road construction sites.

3, the beam launcher 100 includes a main truss 110, a main winch 120, an auxiliary winch 130, a support 140, a lateral rail 150, an under rollers 150, 160, a front portion 170, and a rear portion 180.

The beam launcher 100 is composed of two left and right mold trusses 110. The main winch 120 and the auxiliary winch 120 are mounted on the upper part of the mold truss 110 to guide the PSC beam, And then advances or retracts along a rail formed on the upper part of the mold truss 110. [ The beam launcher 100 is capable of lifting a design weight of 160 t as a maximum span of 60 m.

The isosceles triangular-shaped truss 110 is composed of, for example, 11 unit modules each having a length of 11.8 m and a front portion 170 and a rear portion 180 having a length of 5.8 m which are seated on the under roller 160 . At this time, the total length of the mold truss 110 is 129.80 m, and the unit module may be increased or decreased according to the length of the PSC beam 220, or the total truss length may be adjusted.

In addition, the beam launcher 100 is capable of laying the girder even at a maximum of 6% of the longitudinal linear bridges. For example, a curved bridge can be applied to a linear with a minimum radius of rotation R = 350 m, since the under roller 160 is designed to be movable about a transverse direction and a vertical directional axis.

In this beam launcher 100, the lifting uses the pulley principle, and the lifting speed of the PSC beam, which is the lifting body 220, can be raised and lowered at a speed of 1.85 m per minute and 3.0 m when there is no lifting body.

The assembly of the beam launcher 100 and the bridge construction will be described as follows. First, the entirety of the mold truss 110 is assembled in the assembly site, and then the front part 170 and the rear part 180 frame are assembled to the front and rear surfaces of the mold truss 110. The main winch 120 and the auxiliary winch 130 are installed on the upper part of the assembled mold truss 110 and the wires for driving the beam launcher 100 are connected to the mold truss 110 and the two winches 120, 130, the assembly of the beam launcher 100 is completed.

Next, a support 140 for safely moving heavy objects such as the beam launcher 100 and the PSC beam 220 is installed. Particularly, the support 140 is precisely installed and strictly managed so as not to cause anisotropy, uneven rise, and the like. At this time, the height of the upper lateral rail 150 of the support 140 should not differ.

Next, the PSC beam 220 arriving at the lower part of the mold truss 110 of the beam launcher is pulled up to the upper part of the pier 210 using the main winch 120 and the auxiliary winch 130. At this time, the two winchs 120 and 130 fastened to the cast truss 110 are moved by a span and then fixed by a winch anchor for moving the beam launcher 100, The beam launcher 100 is spun by releasing the anchor of the lower portion of the girder 100 and releasing the anchor.

[Method of disassembling a bridge by using automatic anchorage, position sensor and beam launcher equipped with weight swear]

4 to 15, a method of disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight turner according to an embodiment of the present invention will be described in detail. First, an automatic anchorage, A beam launcher equipped with a position sensor and weight swing will now be described.

FIG. 4 is a side view of the beam launcher according to the embodiment of the present invention, and FIG. 4 (b) is a plan view of the automatic anchorage. 5 is a view showing that a beam launcher is installed on a bridge for disassembling a bridge according to an embodiment of the present invention, FIG. 6 is a view specifically showing the installation of a position sensor according to an embodiment of the present invention on a beam launcher And FIG. 7 is a view showing in detail a weight sensor according to an embodiment of the present invention installed on a beam launcher. FIG. 8 is a view showing an automatic anchorage, a position sensor and a beam launcher FIG. 2 is a view showing a hydraulic cylinder applied to a method of disassembling a bridge.

5, a beam launcher 100 according to an embodiment of the present invention includes a main truss 110, a main winch 120, an auxiliary winch 130, a support 140, a transverse rail 150 and the under roller 160 and includes first to third automatic anchors 310, 320, 330, a weight swing 340, a position sensor (not shown) 350, a front hydraulic cylinder 360 and a rear hydraulic cylinder 370 are additionally provided.

The beam launcher 100 according to the embodiment of the present invention is provided with the first to third automatic anchorages 310 to 320 and the weight swing 340 as shown in FIG. A hydraulic cylinder 360 and a rear hydraulic cylinder 370 may be provided. That is, the beam launcher 100 according to the embodiment of the present invention includes a disassembled girder 500 as shown in FIG. 15A, which will be described later, so as to be able to carry the girders 500 that have been disassembled before and after the mold truss 110 A weight sensor 340 capable of determining the weight of a bridge to be lifted, and a weight sensor 340 for determining the weight of the bridge to be lifted. The first to third automatic anchors 310, And a position sensor 350 that prevents the launcher 100 from being turned off.

The first to third automatic anchors 310, 320, and 330 include a first anchorage 310 installed at a front portion according to a predetermined span length, a second anchorage 320 installed at an intermediate portion of the beam launcher 100, And a third anchorage 330 installed at the tail portion according to the span length. Accordingly, the three automatic anchorages 310, 320, and 330 installed on the beam launcher 100 can select a transportation place regardless of the position when the broken and unfolded girders are transported.

In addition, the weight sensor 340 informs the lifting ability of the beam launcher 100 in a display form and serves to determine the weight of the disassembled girder. 7, the weight sensor 340 is installed at the upper end of the winch wire of the main winch 120, and displays the weight of the disassembled girder 500, ) Can be confirmed by the operator. In other words, the weight sensor 340 attached to the winch wire of the main winch 120 can be used to identify, for example, the lifting weight of the disassembled girder 500 and the weight of the beam launcher 100 It is possible to secure the safety of bridge dismantling work by using double safety function to prevent breakage.

4B, a position sensor 350 may be installed on the main winch and the position sensor 350 may be mounted on the beam launcher 100 (FIG. 4) before lifting the dismantled girder and moving to the loading site So that the center of gravity of the winch 120 is prevented from being shifted to one side, thereby enabling the stable dismantled girder to be carried.

6, the position sensor 350 is disposed in the middle of the frame of the main winch 120, and is installed at the left and right sides of the disassembled girder 500, And the auxiliary winch 130 move to the left or right side of the winch frame and then lifts up to the original position to prevent the beam launcher 100 from being turned at the time of launch. In addition, in order to prevent the beam launcher 100 from falling due to lifting and movement of the winch frame, the position sensor 350 may activate an alarm for returning the home truss 110 to the home position , Safety, conduction, and short circuit of the beam launcher 100 can be prevented.

8, hydraulic cylinders 360 and 370 attached with distance measuring devices 362 are installed on the front portion 170 and the rear portion 180 of the beam launcher 100, respectively, The hydraulic cylinders 360 and 370 serve to stably support the beam launcher 100 after the disassembled girders respectively arrive at both alternations. The rod length of the cylinder can be precisely measured by the distance measuring instrument 362 attached to the head of the hydraulic cylinders 360 and 370 during the supporting operation and can be fixed to the hypothetical block in an automatic vertical form.

Specifically, the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 are hydraulic cylinders capable of performing self-correction and vertical correction, and that the hydraulic cylinder is folded and installed with an existing chain block, In the embodiment, the wireless remote control is operated to generate a stroke of the hydraulic cylinders 360 and 370 and accurately measure the distance to the distance measuring instrument 362 attached to the head of the hydraulic cylinder 360 and 370, 370 can be fixed to the building block in an automatic vertical form after visually checking the horizontal unit 361 attached to the body.

A method of disassembling a bridge using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing according to an embodiment of the present invention includes a front anchorage 310, a front hydraulic cylinder 360, and a rear anchorage 330 The beam launcher 100 using the rear hydraulic cylinders 370 and the rear hydraulic cylinders 370 lifts the girders 500 that have been disassembled from the upper portion of the mold truss 110 to the main winch and the auxiliary winches 120 and 130, Any location can be moved to the loading and unloading site.

The method of disassembling a bridge by using an automatic anchorage, a position sensor and a beam launcher equipped with an anchor according to an embodiment of the present invention is a method of disassembling a bridge of more than 40 m, It can be easily applied at the time of disassembly of the bridge for passing.

9 is a diagram illustrating an automatic anchorage process in an automatic anchorage, a position sensor, and a beam launcher equipped with a weight checker according to an embodiment of the present invention. The anchorage of the first to third automatic anchorages 310, 320, and 330 according to the present invention.

In the case of the automatic anchorage, the position sensor and the beam launcher equipped with the weight swing according to the embodiment of the present invention, the existing manual anchorage is changed to operate as an automatic anchorage. However, in the embodiment of the present invention, the hydraulic cylinders 370 and 380, which are double acting cylinders, are attached to the anchorage, which has been used for manpower work, while the anchorage work Thereby fixing and unlocking the beam launcher 100 with the wireless remote controller when the beam launcher 100 is moved to operate as an automatic anchorage, thereby reducing manpower and increasing safety.

9A to 9E, the first to third automatic anchors 310, 320, and 330 are disposed at the front, middle, and rear portions of the lower portion of the beam launcher 100, respectively, In addition, when the girder 500, which has been disassembled in both alternating directions, is transported, it plays a role of matching the slope of the longitudinal gradient with the role of stable fixing according to the movement of the beam launcher 100.

10 is a flowchart illustrating a method of disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing according to an embodiment of the present invention.

Referring to FIG. 10, in a method of disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weighing apparatus, a beam launcher 100 is first installed on a bridge to be disassembled (S110). The beam launcher 100 may include a mold truss 110, a main winch 120, an auxiliary winch 130, a lateral rail 150, and an under roller 160.

Next, the girder 500 is cut on the bridge and disassembled (S120).

Next, the disassembled girder 500 is lifted by using the main winch 120 and the auxiliary winch 130 at the upper part of the mold truss 110 of the beam launcher 100 (S130).

Next, in step S140, the weight is displayed through the weight sensor 340 installed on the upper portion of the winch wire of the main winch 120 when the disassembled girder 500 is hoisted. At this time, the weight sensor 340 is attached to the winch wire of the main winch 120, and identifies the lifting weight when the lifted girder 500 is lifted and damages the beam launcher 100 due to excessive weight. .

Next, the position sensor 350 installed in the middle of the winch frame of the main winch 120 detects the position of the main winch 120 before moving the disassembled girder 500 to the loading place (S150 ). The position sensor 350 is installed in the middle of the winch frame of the main winch 120 and is connected to the main winch 120 and the auxiliary winch 130 at the time of lifting a bridge located outside the left and right sides of the disassembled girder 500. [ It is possible to detect the position so as to return to the original position after moving from the winch frame to the left or right and lifting. The position sensor 350 also operates an alarm for home position return to the mold truss 110 to increase safety for preventing the beam launcher 100 from falling due to lifting and positioning of the winch frame , It is possible to prevent safety and conduction and short circuit of the beam launcher 100 from moving.

Next, the first to third automatic anchors 310, 320, and 330 installed under the beam launcher 100 select the transporting place of the disassembled girder 500 to move the beam launcher 100 And is stably fixed (S160). The first to third automatic anchors 310, 320, and 330 lift the girders 500 that are disassembled from the main truss 110 and the auxiliary winches 120 and 130, respectively, Any location can be moved to the loading and unloading site regardless of the location. The first to third automatic anchors 310, 320, and 330 are installed in the front part, the middle part, and the rear part of the lower part of the beam launcher 100 in consideration of the length of the disassembly bridge, And serves to match the slope of the longitudinal gradient with the stable fixing function of the beam launcher 100 when the girder 500 is transported. The first to third automatic anchorages 310, 320, and 330 may be used when the first automatic anchorage 310, which is a front anchorage, is moved to a front portion of the beam launcher 100, The second automatic anchorage 320, which is an anchorage, is used to move left and right, and the third automatic anchorage 330, which is a rear anchorage, is used to move to the rear.

The front part 170 and the rear part 180 of the beam launcher 100 are provided with a front part hydraulic cylinder 360 and a rear part hydraulic cylinder 370 each having a distance measuring device, The rear hydraulic cylinders 360 and 370 serve as double acting cylinders to stably support the beam launcher 100 after the respective disassembled girders 500 arrive at both shifts. The front hydraulic cylinders 360 and the rear hydraulic cylinders 370 serve to adjust the load lengths of the front hydraulic cylinders 360 and the rear hydraulic cylinders 370 during the support operation of the beam launcher 100 It is accurately measured and fixed to the hypothetical block in an automatic vertical form. Specifically, the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 operate the wireless remote controller to generate a stroke, and the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 The distance is accurately measured by a distance measuring instrument attached to the head and the level machine attached to the body of the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 is visually inspected and fixed in a vertical block .

Next, the disassembled girder 500 is moved to a loading and unloading place using the main winch 120 and the auxiliary winch 130 of the beam launcher 100 (S170). Specifically, the disassembled girder 500 is carried to a loading and unloading place using the beam launcher 100, and the main winch 120 and the auxiliary winch 130 of the beam launcher 100 are used for waiting The disassembled girder 500 on the trailer 420 is transferred to the trailer 420 and the disassembled girder 500 carried on the trailer 420 is transferred to the trailer 420 and then the main winch 120 and / The auxiliary winch 130 is returned to its original position.

11 is a view illustrating a disassembled bridge to be transported to a first point using an automatic anchorage, a position sensor, and a beam launcher equipped with a weighing apparatus, according to an embodiment of the present invention. FIG. FIG. 5 is a view showing a concrete procedure of transporting a disassembled bridge to a first point.

As shown in FIG. 11, when the disassembled bridge is transported to the first point, for example, the tail end, by using the automatic anchorage, the position sensor and the beam launcher provided with the weight swing, according to the embodiment of the present invention, A) to d) of FIG.

12 (a) shows the dismantling of the disassembled bridges alternately, Fig. 12 (b) shows the disconnection of the bridge to the waiting trailer, and Fig. 12 (c) , And Fig. 12 (d) shows moving to transport the disassembled bridge, respectively.

13 is a view illustrating a disassembled bridge to be transported to a second point using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing according to an embodiment of the present invention. Fig. FIG. 5 is a view showing a concrete procedure of transporting a disassembled bridge to a first point.

As shown in FIG. 13, when the disassembled bridge is transported to the second point, for example, the front part, by using the automatic anchorage, the position sensor and the beam launcher equipped with the weight swing, according to the embodiment of the present invention, A) to d) of FIG.

Fig. 14 (a) shows the disassembly of the bridges alternately, Fig. 14 (b) shows the abandonment of the bridge to the waiting trailer, and Fig. 14 (c) And Fig. 14 (d) shows moving to transport the disassembled bridge, respectively.

15A to 15C are views illustrating a process of disassembling a bridge on the side using a beam launcher according to an embodiment of the present invention.

15A, the disassembled girder is moved to the side, and then, as shown in FIG. 15B, the disassembled bridge is disassembled by using the beam launcher according to the embodiment of the present invention. The moved girder is lowered to the bridge carrying vehicle, and then the beam launcher 100 is moved to the original position to dismantle the next girder, as shown in Fig. 15C. By repeating the processes shown in Figs. 15A to 15C, the bridge can be disassembled. Here, reference numeral 410 denotes a road, and reference numeral 420 denotes a dolly which is a one-axis trailer whose axle is in the vicinity of the center of the trailer.

As a result, according to the embodiment of the present invention, by installing three automatic anchorages on the beam launcher, it is possible to raise the girders dismounted from the upper part of the truss by the main winch and the auxiliary winch, It can be moved to the loading place. In addition, according to the embodiment of the present invention, the weight sensor is provided at the upper end of the winch wire of the main winch to display the weight of the disassembled girder during lifting, so that the operator can confirm the safety of the beam launcher during the bridge disassembly work. According to the embodiment of the present invention, by installing the position sensor in the middle of the winch frame of the main winch, the main winch and auxiliary winch at the time of lifting the bridge located outside the left and right sides of the disassembled girder move to the left or right side of the winch frame, , It is possible to return to the original position accurately and to prevent the beam launcher from being conducted at the time of launch.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

100: Beam Launcher
110: Mold truss (Main Truss)
120: Main Winch
130: Second Winch (Auxiliary Winch)
140: Support
150: Transverse Rail
160: Under Roller
170: Front Head
180: Rear Head
210: Pier (Pier)
220: salvage (for example, PSC beam)
310: First Automatic Anchorage
320: Second Automatic Anchorage
330: Third Automatic Anchorage
340: Weight sensor
350: Position sensor
360: Front Oil Cylinder
370: Rear Oil Cylinder
361: Level meter
362: Distance measuring instrument
410: Going
420: Trailer
500: Dismantled girder (bridge)

Claims (11)

In a method of disassembling a bridge using a beam launcher 100 provided with a mold truss 110, a main winch 120, an auxiliary winch 130, a transverse rail 150 and an under roller 160,
a) laying a beam launcher (100) on a bridge to be disassembled;
b) cutting and dismantling the girder (500) on the bridge;
c) lifting the dismantled girder (500) using the main winch (120) and the auxiliary winch (130) above the mold truss (110) of the beam launcher (100);
d) displaying the weight through the weight sensor (340) installed on the top of the winch wire of the main winch (120) when lifting the disassembled girder (500);
e) detecting the position of the main winch 120 by a position sensor 350 installed in the middle of the winch frame of the main winch 120 before lifting the disassembled girder 500 and moving to the loading place;
f) The first to third automatic anchors 310, 320, and 330 installed under the beam launcher 100 select a transportation place for transporting the disassembled girder 500 to stably support the beam launcher 100 ; And
g) using the main winch 120 and auxiliary winch 130 of the beam launcher 100 to move the disassembled girder 500 to a loading and unloading location,
The first to third automatic anchorages 310, 320, and 330 are installed in the front part, the middle part, and the tail part of the lower part of the beam launcher 100 in consideration of the length of the disassembly bridge, And serves to match the slope of the longitudinal gradient with the stable fixation role due to the movement of the beam launcher 100 when the girder 500 is transported,
The first to third automatic anchors 310, 320, and 330 are used when the first automatic anchorge 310, which is a front anchorage in the middle of the beam launcher 100, moves to a front portion, The second automatic anchorage 320 is used to move left and right and the third automatic anchorage 330 which is a rear anchorage is used to move to the rear portion. A method of disassembling a bridge using a launcher. The method according to claim 1,
The first to third automatic anchors 310, 320 and 330 of the step f) lift the girders 500, which are disassembled from the main winch 120 and the auxiliary winch 120, respectively, Wherein the automatic anchorage, the position sensor, and the beam launcher equipped with the weight swing are used to dismantle the bridge, regardless of the designated transportation location. delete delete The method according to claim 1,
A front hydraulic cylinder 360 and a rear hydraulic cylinder 370 to which a distance measuring instrument is attached are installed on the front portion 170 and the rear portion 180 of the beam launcher 100, The hydraulic cylinders 360 and 370 serve as double acting cylinders to stably support the beam launcher 100 after the disassembled girders 500 respectively arrive at both alternating positions. A method of dismantling a bridge using a beam launcher with weight swear. 6. The method of claim 5,
The front hydraulic cylinder 360 and the rear hydraulic cylinder 370 accurately measure the load lengths of the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 during the support operation of the beam launcher 100 Wherein the automatic anchorage, the position sensor, and the beam launcher equipped with the weight swing are used to disassemble the bridge. 6. The method of claim 5,
The front hydraulic cylinders 360 and the rear hydraulic cylinders 370 generate strokes by operating the wireless remote control and are respectively provided with the heads of the front hydraulic cylinders 360 and the rear hydraulic cylinders 370 The distance is accurately measured by the attached distance measuring device and the level machine attached to each of the front hydraulic cylinder 360 and the rear hydraulic cylinder 370 is visually inspected and fixed to the vertical block in an automatic vertical form A method of disassembling a bridge by using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing. The method according to claim 1,
The weight sensor 340 of the step d) is attached to the winch wire of the main winch 120 and is used to identify the lifting weight when the lifted girder 500 is lifted and the weight sensor 340 of the beam launcher 100 A method of disassembling a bridge by using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing, characterized by preventing breakage. The method according to claim 1,
The position sensor 350 of the step e) is installed in the middle of the winch frame of the main winch 120 and is connected to the main winch 120 and the auxiliary And the position is detected so that the winch (130) moves to the left or right side of the winch frame and returns to the original position after the cargo is hoisted. Disassembling the bridge using the automatic anchorage, the position sensor and the beam launcher equipped with the weight turn Method. 10. The method of claim 9,
The position sensor 350 activates an alarm for home position return to the mold truss 110 to prevent the beam launcher 100 from falling due to lifting and movement of the winch frame, A method for disassembling a bridge using an automatic anchorage, a position sensor, and a beam launcher equipped with a weight swing, characterized by preventing safety and short-circuiting of the beam launcher (100). 2. The method of claim 1, wherein step g)
g-1) transporting the disassembled girder (500) to a loading and unloading place using the beam launcher (100);
g-2) removing the disassembled girder 500 from the waiting trailer 420 using the main winch 120 and the auxiliary winch 130 of the beam launcher 100;
g-3) transferring the disassembled girder 500 carried on the trailer 420; And
g-4) returning the main winch 120 and auxiliary winch 130 of the beam launcher 100 to their original positions
A method of disassembling a bridge using an automatic anchorage, a position sensor and a beam launcher equipped with a weight swing.

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