KR100378382B1 - Juck-supporting apparatus for mending and substituting for the bearing structure and the bearing apparatus of a bridge with its established performance - Google Patents

Abstract

The present invention relates to a jack support device for securely fixing and installing a hydraulic jack for raising a superstructure of a bridge to a jack for maintenance or replacement when the bridge device and the bridge portion are cracked and broken due to long use.

In the present invention, the hydraulic jack lower support device is characterized in that the mounting portion is formed on both sides of the channel bracket to be covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers.

On the other hand, the upper support device has a seating part on which the plate attached to the rod end of the hydraulic jack is seated on the bottom of the center plate base plate on the square plate, and the guide groove and the I-beam girder web on which the flange of the I-beam girder can be inserted. It is made by welding / bolting a guider having an insertion groove in which vertical reinforcements installed on both sides can be placed.

On the other hand, as another aspect of the present invention, the lower supporting device is the same, but if the bridge is a concrete bridge, the girder is composed of PC-beams, the configuration of the upper supporting device is the side of the upper side of both sides of the base plate in close contact with the bottom of the PC-beam The flange of the bracket is fixed, but the upper part of the side bracket at the corresponding position of the temporary hole of the PC-beam is characterized in that it is provided with a coupling hole is inserted into the cap is supported on both ends of the steel rod penetrating the temporary hole.

Description

Jack support device for mending and substituting for the bearing structure and the bearing apparatus of a bridge with its established performance}

The present invention transmits the reaction force of the superstructure to the undercarriage in the bridge, and has a function of cushioning so that the bridge device, which is firmly connected between the upper part of the pier and the girder for the function of transmitting the reaction force, is maintained when it is cracked and broken by long use. It relates to a jack support device for securely fixing and installing a hydraulic jack for raising a superstructure of a bridge to a jack for repair or replacement, in particular steel bridges (plate bridges, box girder bridges, truss bridges) and concrete bridges (PC beam bridges). (For slab bridges, PA beam bridges, T-beam bridges, PC-box bridges, preflex bridges), etc. It is about.

In general, the old bridge system does not meet the performance standards of the current construction specifications or design standards, and thus the damage and cracking occurs in the bridge unit portion due to the increased traffic volume and load load, especially in the bridge unit of the train or heavy vehicles As heavy and complex loads are concentrated on the road, if the performance is somewhat insufficient, serious damage to the bridge and driving accidents may occur.

Therefore, repair and replacement of the curb, including the curbular device damaged by regular inspection, should be done.

However, the position of the bridge due to dynamic loads, wind loads, and expansion and contraction due to temperature varying depending on the operation of the vehicle with a long pulling time and a large number of changes, or on curved bridges, sloped bridges and wide bridges. There is a serious structural safety problem in which the expansion and contraction gap changes before and after the impression, and the damage (buckling, deformation) of the bridge (beam) due to the centerline mismatch (eccentricity) between the beam (girder) and the hydraulic jack occurs. have.

This conventional jacking support device, as shown in Figure 1 without any other, as shown in Figure 1 to the lower base and the rod (R) end of the hydraulic jack (J) to simply put the hydraulic jack on the top of the pier 100 as it is simply through the square plate. Jack-up to the upper support having a rectangular support plate 120.

However, this conventional method does not accommodate when there is a dynamic load on the upper part of the bridge, or when there is a telescopic displacement due to temperature, and under the torsional stress during jacking, buckling, deformation, etc., causes hydraulic jacks and beams (girder). ), The center support point is shifted, and the hydraulic jack is knocked out accordingly, resulting in a risk of safety accident and accidents leading to breakage of the bridge.

Therefore, the present invention was devised to solve the above problems, and can accommodate it properly even in the situation of stretch and change according to the temperature displacement during operation of trains and the like, and can sustain the function of the bridge including the existing bridge device as it is. It is an object of the present invention to provide a hydraulic jack backing device that does not allow the hydraulic jack to be released.

This hydraulic jack support provides a configuration suitable for the girder of various bridges, providing a working condition that can safely and easily support the hydraulic jack on any bridge.

This will be a prerequisite for construction, such as repairing / reinforcing or replacing bridge units and bridge units.

Specific means of the present invention for achieving the above object is as follows.

First, in the present invention, the hydraulic jack lower support device is characterized in that the mounting portion is formed on both sides of the channel bracket to be covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers.

On the other hand, the upper support device depends on the type of bridge, first, in the case of steel bridge (plate-shaped bridge, box girder bridge, truss bridge) has a seating part in which the rod end plate of the hydraulic jack is seated on the base plate center bottom of the rectangular plate, It is made by welding / bolting the guider, which has a guide groove into which the flange of the I-beam girder can be inserted and an insertion groove into which a vertical reinforcement is installed on both sides of the I-beam girder web.

On the other hand, as another aspect of the present invention, the lower support device is the same, but if the bridge is a concrete bridge, the girder is composed of a PC-beam, this beam has a temporary construction for the general construction work to configure the upper support device using the same desirable. The configuration is to secure the flange of the side bracket to the upper surface of both sides of the base plate in close contact with the bottom of the PC-beam, the cap that is covered on both ends of the steel rod penetrating the temporary hole in the upper part of the side bracket at the position corresponding to the temporary hole of the PC-beam It is characterized by including a coupling hole that is inserted and supported. Of course, it is also possible to form a screw portion at both ends of the steel bar and fasten the nut by screwing the screw portion protruding through the coupling hole. Of course, the bottom surface of the base plate has a seating portion (12).

As another aspect of the present invention, the lower support is also the same, the bridge is a suitable support device in the case of slab, PC beam, T beam, PC box, preflex bridge even in the concrete bridge, the configuration is between the girder and the bridge device It is characterized by consisting of a support device for restraining the sole plate (SOLE-PLATE) to be installed and released to the free end.

This secures the rod of the hydraulic jack to the outside of the cutout of the c-shaped base plate having the cutout interposed therebetween to avoid the obstacle of the sitting device and the cutout, and the interlocking part of the sole plate interposed on the cutout part can be intermittently or moved freely. The four w-shaped wedge plates are bolted to suit the situation. Of course, the bottom surface of the base plate has a seating portion (12).

1 is a schematic view of a state in which a conventional hydraulic jack is installed.

Figure 2 is a perspective view of the hydraulic jack lower support device of the present invention.

Figure 3 is a perspective view of the steel support base of the present invention.

4 is a perspective view of the upper support device as an example of the various installation state of FIG.

4A is a fixed end type, FIG. 4B is a longitudinally movable end type, FIG. 4C is a transversely movable end type, and FIG. 4D is a perspective view of a bidirectional movable end type upper support device.

Figure 5a is an exploded perspective view of the upper support of another embodiment of the present invention.

Fig. 5B is a schematic view of the installation state of Fig. 5A;

Figure 6a is a perspective view of the upper support of another embodiment of the present invention.

6B is a cross-sectional view of the installation state of FIG. 6A.

FIG. 7 is a plan view of the upper support device as an example of various installation states of FIG. 6A;

FIG. 7A is a fixed end type, FIG. 7B is a longitudinally movable end type, FIG. 7C is a transversely movable end type, and FIG. 7D is a plan view of the bidirectional movable end type upper support device.

<Description of the symbols for the main parts of the drawings>

10: lower support 11: channel bracket

12: seating portion 20: upper support device

21: base plate 22: guider

H: Guide groove h: Insertion groove

23: first plate 24: second plate

30: upper support device 31: base plate

32: side bracket 32H: coupling hole

32F: Flange 33: Steel bar

33C: Cap 40: Upper Supporting Device

41: U-shaped base plate 41A: cutout

42: W-shaped wedge

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

First, in the present invention, the hydraulic jack (J) lower support device 10 is seated on both sides of the channel bracket 11 covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers 100 as shown in FIG. It was characterized by forming (12).

Cutout holes formed in the channel bracket (11) in the above figure is configured to be divided into a two-segment device and the seat is fixed to the plate (P), etc. fixedly integrated.

Of course, if there is no hydraulic jack (J) installation space may be installed by using the surface of the space securing means to be installed separately. Importantly, whether it is channel type or plate-shaped, it has the mounting part 12 as a locking mounting means of the hydraulic jack J on the base plate 11. Of course, this seat will be sized to fit the plate that is secured to the bottom of the body of the hydraulic jack. The plate may be square and preferably square.

Therefore, the side of the hydraulic jack (J) body is inserted into the seating portion 12 and securely mounted on the fixed end as well as any movable end of the bridge to achieve a stable setting without being removed.

Of course, by attaching an accessory to the body or the rod end of the hydraulic jack and the mounting portion in a circular or any other form will not depart from the spirit of the present invention.

On the other hand, the upper support device depends on the type of bridge, in the case of steel bridge (plate-shaped bridge, box girder bridge, truss bridge), as shown in Figure 3 and 4, the hydraulic jack (J) A guide groove (H) and a girder (200) web into which the seating portion (12) on which the end plate of the rod (R) is mounted is fixed, and into which the flange (210) of the I-beam girder (200) can be inserted. 220 is made by welding or bolting the guider 22 having an insertion groove h in which the vertical reinforcement 230 installed at both sides can be positioned.

The preferred configuration of the guider 22 for forming the guide grooves H and the insertion grooves h may include a pair of narrow first plates 23 at least equal to the thickness of the flange 210 of the girder 200. 21) A pair of large second plates 24 each having an insertion groove h at both sides and at an inner side opposite position thereof are stacked and fixed with a fastening member.

In the figure, reference numeral 24A denotes a reinforcing bar for strength reinforcement.

At this time, the insertion groove (h) of the second plate 24 is a fixed end upper support for restricting the flow of the girder 200 in front and rear and left and right according to the cut shape as shown in Figure 4a, b, c, d The device 20A, the longitudinally movable end support device 20B for restricting the left and right flow of the girder and allowing displacement in the front and rear longitudinal direction, and the displacement for the left and right transverse direction while restricting the forward and backward flow of the girder. A transversely movable end support device 20C and a bidirectional movable end support device 20D for enabling displacement of the girder in the front, rear, left and right directions are respectively characterized by the above-mentioned.

In this operation, the conventional setting of the rod (R) end of the hydraulic jack (J) to the jack-up point was made by means of manual adjustment, but in the present invention, the hydraulic jack support device is pierched with the girder 200 It is set by itself as it is installed at (100).

That is, when the first plate 23 is fixed to the bottom surface of the girder 200 to be jacked up while the first plate 23 is fixed to the base plate 21, the flanges of the girder 200 between the first plate 23 on both sides ( 210 is seated, and the second plate 24 formed with an insertion groove (h) suitable for the situation of the girder is padded and fixed. Therefore, the lower portion of the girder 200 is in a state seated in the guide groove (H).

On the other hand, in the corresponding position of the pier 100, a plate attached to the hydraulic jack (J) rod end to the seating portion 12 fixed to the bottom of the base plate 21, and a plate of the lower portion of the body of the hydraulic jack is a base plate ( It is inserted into the seating part 12 of 11).

Therefore, since the pressure is distributed through the base plate 21, which has a relatively large pressure when jacking up, it is possible to reduce the concentrated stress and prevent the damage of the piers, and to prevent the deformation of the girder 200, rather than the hydraulic jack J. As the rod (R) end of the device is assembled and installed, the design can be set in place so that buckling and deformation due to the bias of the pressure point are eliminated.

A more important action is also the longitudinally movable end support device 20B which forms the insertion groove h as shown in FIG. 4B when, for example, the supporting point of the bridge 100 is the movable end in the longitudinal direction. Even after displacement, such as displacement due to temperature expansion and contraction of the girder 200 or tilting of the bridge, the hydraulic jack is fixed by the rod of the hydraulic jack directly connected to the bottom of the girder, so that the hydraulic jack does not bounce off due to lateral force. The girder 200 can be moved back and forth to the guide groove H on the base plate 21 in the position, and the insertion groove h of the second plate 24 is a vertical reinforcement material according to the expansion and contraction of the girder. 230) to avoid movement obstacles.

On the other hand, Figure 4a is a fixed end support device (20A), the insertion groove (h) of the second plate 24 suppresses the forward and backward movement of the vertical reinforcement 230, Figure 4c is a horizontal movable end support device (20C) 4) is a bi-directional movable end support device 20D, which accommodates the displacement of the front, rear, left, and right sides after the bridge is lifted, and the operations are the same as described above.

On the other hand, Figure 5 is another aspect of the present invention, the lower support device 10 is the same, when the bridge is a concrete bridge girders 200A is composed of a PC beam, this beam is a temporary construction work 240 for a typical construction work ), It is preferable to configure the upper support device 30 using the same.

The configuration is fixed to the upper side of the side bracket 32 on both sides of the base plate 31 in close contact with the bottom surface of the PC beam with a fastening member, the upper side of the side bracket 32 at the position corresponding to the temporary hole 240 of the PC beam, It is characterized in that it is provided with a coupling hole (32H) is inserted and supported by the cap 33C to be covered at both ends of the steel bar 33 penetrating the temporary hole 240.

Of course, it is also possible to form a screw portion at both ends of the steel bar and fasten the nut by screwing the screw portion protruding through the coupling hole.

Also in this example, the lower support device 10 is operated in the same manner, and the installation of the upper support device 30 causes the base plate 31 to be close to the bottom of the PC beam, and in the temporary hole 240 of the girder 200A. Insert the steel bar 33 to cover the cap 33C on both ends of the protruding end, the coupling hole 32H of each of the pair of side brackets 32 to the protruding cap 33C, the lower flange of the side bracket Installation is completed by fastening by using the fastening member (32F).

Of course, a seating portion 12 into which the plate at the end of the hydraulic jack J rod R is inserted is fixed to the center bottom of the base plate 31. Therefore, according to the jack up of the hydraulic jack, the lifting load acts as an even component rather than a concentrated load by the base plate 31 and the steel bar 33 supported by the side bracket 32, thereby effectively raising the bridge. .

6A and 6B are still another embodiment of the present invention, and the lower support 10 is the same, and the bridge is a suitable support device in the case of slab, PC beam, T beam, PC box, and preflex bridge even in concrete bridge. , The configuration is fixed to the sole plate 310 (SOLE-PLATE) of the bridge device 300 is installed between the girder 200 and the piers 100 at the fixed end, the movable end is kept free to move It characterized in that it is configured as a support device.

The rod (R) end plate of the hydraulic jack (J) is provided on the bottom surface of the cutout portion (41A) of the c-shaped base plate 41 having the cutout portion (41A) interposed to avoid the obstacle of the device and the bridge portion (300). It is made by fixing the seating part 12 to be seated, and bolting four L-shaped wedge plates 42 which clamp down the inlet portion of the sole plate 310 interposed in the cutout part 41A.

That is, at the fixed end, four L-shaped wedge plates 42 are closely fixed to each other so as not to flow the sole plate 310 (see FIG. 7A), and the four L-shaped wedges are closely connected to the left and right at the longitudinal movable end and freely back and forth. The plate 42 is fixed (see FIG. 7B), and the four L-shaped wedges 42 are fixed to the front and rear sides freely and horizontally at the lateral movable end (see FIG. 7C), It is only necessary to freely fix the four L-shaped wedges 42 (see FIG. 7D).

The upper support device 40 has an even load through the U-shaped base plate 41 and four U-shaped wedges 42 according to the operation of the hydraulic jack (J), thereby raising the stable bridge and It is effective to secure stability after the raise.

The present invention constructed and operated as described above is a method that can perform repair and replacement work of the bridge and the bridge device even during operation of trains and heavy vehicles by working as a hydraulic jack, the dynamic load and temperature according to the state of the bridge Regardless of the expansion and displacement, according to the existing device and maintain the function of the unit to maintain a stable jack up has the effect of achieving a safer and more reliable repair work.

Claims (4)

In forming a hydraulic jack support device for raising the upper structure of the bridge by jacking up the hydraulic jack (J) between the bridge pier 100 and the girders (200, 200A) of the bridge, A lower supporter 10 having seating portions 12 formed on both sides of the channel bracket 11 covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers; A guide groove into which a flange 210 of the I-beam girder 200 can be inserted is formed on the center 12 of the square plate-shaped base plate 21 on which the plate of the hydraulic jack rod end is seated. (H) and the existing bridge, characterized in that consisting of the upper support device 20 fixed to the guider 22 having an insertion groove (h) where the vertical reinforcement 230 is installed on both sides of the girder weave 220 Jack restraints for repair and replacement of seats, including bridge seats, while maintaining the functionality of the unit. According to claim 1, The guide groove (H) and the insertion groove (h) of the upper support device 20, at least a pair of narrow first plate 23 of the thickness of the flange 210 of the girder 200 at least. Existing teaching apparatus, characterized in that a pair of wide second plate 24 having an insertion groove (h) on both sides of the base plate 21 and the inner side opposite to the base plate 21 is laminated and fixed by a fastening member Jack support for repairing and replacing the seat, including the bridge of the bridge, while maintaining the functionality of the bridge. In forming a hydraulic jack support device for raising the upper structure of the bridge by jacking up the hydraulic jack between the bridge pier and the girder of the bridge, A lower supporter 10 having seating portions 12 formed on both sides of the channel bracket 11 covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers; Coupling hole 32H at the corresponding position of the lower flange 32F fixed to the upper surface of both sides of the base plate 31 having the seating portion 12 formed on the bottom surface in close contact with the PC beam, and the temporary hole 240 of the PC beam. ) And a pair of side brackets 32 and a steel rod 33 having a cap 33C fitted into the coupling hole 32H at both ends protruding through the temporary hole 240 and the upper supporting device ( A jack support device for repairing and replacing the seat including the bridge device of the bridge while maintaining the function of the existing bridge device, characterized in that consisting of 30). In forming a hydraulic jack support device for raising the upper structure of the bridge by jacking up the hydraulic jack between the bridge pier and the girder of the bridge, A lower supporter 10 having seating portions 12 formed on both sides of the channel bracket 11 covered on both circumferential surfaces of the piers while covering the upper surface of one side of the piers; On the bottom surface of the cutout portion of the c-shaped base plate 41 having the cutout portion 41A interposed to avoid the obstacle of the teaching device and the portion 300, a seating portion 12 for mounting the rod end plate of the hydraulic jack is formed. And an upper support device 40 which is formed by bolting four L-shaped wedge plates 42 intermittently intercepting the four ends of the sole plate 310 interposed in the cutout portion 41A. Jack support for repairing and replacing the seat, including the bridge of the bridge, while maintaining the functionality of the bridge.