KR20050018195A - large number bracket in which supporter was installed is used and it is a bridge, multiplex point installed so that support might be carried out support bracket and its installation method - Google Patents

Abstract

PURPOSE: An installation method for a multi-point support bracket installed to support a bridge using a bracket with many supporters is provided to repair and reinforce a bridge girder as an upper structure by reducing the reaction force and section force of a structure, to execute a construction work regardless of the traffic and to simplify repair and reinforcement works by repairing and reinforcing a bridge using a supporter. CONSTITUTION: The installation method for a multi-point support bracket installed to support a bridge using a bracket with many supporters comprises the steps of: manufacturing an upper chord and a vertical member to meet at a right angle to each other and manufacturing a triangular bracket by connecting the end of the upper chord and the end of the vertical member mutually using a diagonal member to form a right triangle; installing a vertical member of the triangular bracket on both sides of a pier(12) to be adhered closely to the pier; connecting upper chords of the triangular bracket mutually using steel, then connecting mutually with a steel bar on the upper part, or, connecting upper chords mutually with steel bars and connecting/fixing the appointed part of the vertical member with a steel bar; installing a backing and a supporter(34) on both outer parts of the upper chord of the triangular bracket; and rustproofing the above-mentioned apparatus.

Description

Large number bracket in which supporter was installed is used and it is a bridge, multiplex point installed so that support might be carried out support bracket and its installation method}

The present invention is to install a plurality of support devices in the brackets installed on the lower part of the bridge girder and the bridge bridge girder bridge to serve as a multi-point support device to support the bridge girder to bridge bridge girders at the bottom of the bridge girder At the same time, when the bridge's durability is lowered and the durability needs to be increased, the upward force is applied to the supporting device to increase the durability by introducing upward compressive force to the bridge girder, or to require reinforcement. If there is, it is a multi-point support bracket installed to install a plurality of support devices for the rigidity and maintenance of the bridge such as replacing the bridge device after lifting the support device upward.

The multi-point support bracket is firmly installed in the bridge or pier at the bottom of the bridge girder installed on the bridge or bridge, and then a plurality of support devices are installed in the multi-point support bracket to support the bridge girder at the bottom of the bridge girder. It is.

 The multi-point support bracket consists of a triangular bracket, a truss bracket, an arch bracket and a dead bracket. The bracket is installed according to the condition of the bridge and the type of the bridge. In general, it can be applied to all types of bridges.

 In addition, the multi-point support bracket is installed in the form of the bridge can be applied to all of the multi-point support bracket to a variety of bridges, such as slab bridge, PC beam girder bridge, steel box bridge, steel plate girder bridge and cable-stayed bridge. However, if the multi-point support bracket is installed, it is difficult to install the support device, that is, in the case of a bridge having a narrow geometry space, a separate support part is to be installed and supported.

Various girders applied to the above-mentioned various forms of bridges are collectively referred to as bridge girders in the present invention.

An object of the present invention is to install a pre-fabricated bracket on the bridge or alternator to maintain the rigidity in the bridge or to perform maintenance reinforcement simply by using a support device when the bridge needs to be maintained As the bridge girders are supported by the multi-point support device, the reaction force and the cross-sectional force of the structure can be reduced to repair and reinforce the bridge girders, the upper structure of the bridge, and the construction can be performed regardless of the traffic of the vehicle, and the construction period is shortened. In addition, the purpose of the present invention is to provide a method for installing a multi-point support bracket that can be used to repair and reinforce the bridge in the future maintenance of the bridge.

The pre-built bridges were designed to meet the design criteria at the time of construction, but due to the increase in vehicle loading capacity and traffic volume, the bridges have already been limited in their load bearing capacity and may cause large accidents due to the severe loss of bridges due to some aging and damage. As there is a high possibility that there is a possibility, there is a need to repair and reinforce the existing bridge as a countermeasure against it.

Therefore, the reinforcement work for the existing bridge has been implemented by this need. The conventional maintenance method is as follows.

First of all, the method relates to a method for repairing and reinforcing bridges in accordance with vertical expansion by directly applying a tensile force to a slab or a ramen bridge as a load-bearing reinforcement method of a bridge using a prefabricated bracket (Patent Publication No. 2002-0005175). The method is limited to the slab or ramen, and the construction of the long bridge, that is, the repair and reinforcement of the bridge by the girder requires the installation of the vertical steel material 101 as shown in FIG. In addition to being an uneconomical method, it is difficult to further tension the tension member 103 applied to the longitudinal steel material, which is very difficult to maintain.

Second, the repair and reinforcement device for bridges using truss members and its method (Patent Publication 2002-0025131) is a repair and reinforcement method due to the reduction of the central moment of motion using truss type. A truss type member 121 is installed between the bridges and the bridges, the bridges, and the bridges as shown in FIG. 2, and the truss members are fastened by the tie bars 122, and the upper fixing unit 123 The slab bridge, steel plate composite bridge, reinforced concrete T-beam bridge by introducing a tension force to the tension member 126 connecting the fixing unit 125 formed at both ends of the horizontal reinforcement beam 124 to support the slab Although the method is effective for bridges with short backs, truss members are not required for repairing and reinforcing bridges such as steel bridges, bridge beams, PS beams, and PS box girders. Complicated to take account of the aspect ratio and hence the effective buckling length and the like in accordance with, and also, it is a lot of material is required not economical, it has the disadvantage that do not exert their effects in a manner that requires the construction period for a long time resulting.

Thirdly, in the reinforcement method of the bridge and its structure (Patent Publication No. 2002-0093333), as shown in Figure 3a, the coping is excavated between the existing plate-shaped 131, a new bridge device 133 and a new mounting on the bridge device It has the feature to share the load as many as the number of plate shape by the method of hypothesis of the plate (135), but the problem of having to mount a new plate in the mold space in the construction method, in particular, by excavating the coping part of the piers The method of installation is not sufficient to secure the safety without reinforcing the piers, as shown in FIG. 3b, the wedge 137 is inserted between the new mold beam and the slab as shown in FIG. 3b. The upper slab, which is relatively rigid compared to the plate shape, is wedged, rather than the concept of repairing and reinforcing the bridge by the introduction of prestress by restoring force toward the side. Because given the tension caused by bending towards the top by the mouth results in cracks in the slab occurs, which has the disadvantage of leading to the loss of the enormous bridge.

The present invention has been proposed in order to improve the above problems, by installing a bracket on the existing point of the bridge or alternator, and by installing a plurality of support devices by the bracket to bridge the bridge girders by multiple points at the bottom of the bridge girder When reinforcing the bridge using the brackets, the upward force is introduced to the support device to lift the bridge girders and then the bridge device is replaced or the reinforcement of the upper structure of the bridge is performed. In order to ensure the rigidity of the bridge and to use it for maintenance and management, the present invention provides a method for installing a multi-point support bracket on the bridge.

The present invention installs the multi-point support bracket 20 in the bridge or bridge under the bridge girders 10 installed by being mounted on the bridge 12 or the bridge 17 which is the point of the bridge, and then the support device to the multi-point support bracket By installing a plurality of (34) to support the bridge girder by acting as a multiple support point at the bottom of the bridge girder (10).

 The multi-point support bracket 20 is made of a triangular bracket 30, truss bracket 40, arch bracket 70 and the dead bracket (60), the bracket is installed according to the state of the bridge and the type of bridge All types of brackets above can be applied to all types of bridges.

 In addition, the multi-point support bracket 20 is installed in the form of the bridge is a slab bridge, PC beam girder bridge, steel box bridge, steel plate girder bridge and cable-stayed bridge, and the like to apply all of the multi-point support bracket Can be. However, if the multi-point support bracket is installed, it is difficult to install the support device, that is, in the case of a bridge having a narrow geometry space, a separate support part is to be installed and supported.

Hereinafter, the configuration and operation of the present invention will be described in detail by the accompanying drawings.

Figure 4a, b is a view showing a triangular bracket that is a multi-point support bracket of the present invention, the welded or bolted using a steel in the form of a right-angled triangle truss, but the upper chord 31 and the vertical member 32 is Produced to meet at a right angle, the upper end and the vertical end of the vertical material by using a yarn 33 to produce a triangular bracket 30 that is a multi-point support bracket 20, then Figure a is the manufactured triangle The bracket 30 is installed on the lower surface of the bridge girder 10 of the bridge 12 by the anchors so that the vertical material 32 is in close contact with the front surface of both sides of the bridge, and the steel wires 31 are connected to each other as the upper chord 31. The pedestal 35 and the support device 34 are installed in a portion where the upper chord 31 and the yarn 33 meet each other while allowing the steel rod 15 to be connected and settled thereon so as to be in close contact with the lower portion of the bridge girder 10. B is one of FIG. 4A Is a current (31) to the connecting rod fixed to the sujikjae installed on both sides of the middle portion of sujikjae 32, while the only connection to the fixed bar (15), except for the steel material to connect each other.

5 is a view showing a truss-type bracket that is a multi-point support bracket of the present invention, which is manufactured in a truss form by dividing the upper and lower parts of the intermediate support member 46, and the upper part of the intermediate support member 46. The upper yarn 41 is installed at both ends of the ash, while the plurality of upper vertical members 44 are respectively installed at the center thereof to be connected to the ends of the upper yarn 41, and then the upper upper chord 43 is installed thereon. The bracing 42 is installed in the inner space formed by the upper upper chord 43 and the plurality of upper vertical members 44 to be formed with an X (X).

On the other hand, the lower lower chord while installing a plurality of lower vertical members 49 in the middle of the intermediate support member, respectively, in the lower part of the intermediate support member 46, and the lower yarn 50 on both sides of the intermediate support member While connecting to one side of the 48, while connecting the lower lower chord 48 to the ends of the lower vertical member 49 on both sides while installing the bracing 42 in the form of X (X) in the interior of the two sides, The inclined support member 47 at the central portion of the lower yarn 50 at a portion where the intermediate support member 46 and the lower vertical member 49 meet each other in a triangular space formed on both sides by the intermediate support 46 and the lower vertical member 49. The bridge girder 10 is installed over the front side of one side of the bridge 12 or shift 17, and a plurality of pedestals 35 are installed on both sides of the intermediate support, 34) but the support device (34) and the bridge The bottom surface of the girder 10 is a truss type bracket 40 which is a multi-point support bracket 20 installed to be in close contact with each other.

The bracing and the inclined support are provided to maintain the rigidity of the truss bracket. In order to support the bridge girder at high pressure, an excessive force is applied to the support device. At this time, the rigidity must be maintained to support this force, so the inclined support material and the bracing are installed.

6 is a view showing an arcuate bracket, which is a multi-point support bracket of the present invention, having the same shape as the truss bracket of FIG. 5, except that the upper sand 41 and the upper top chord are formed on the middle support 46. Instead of installing 43), the arch bracket 71 is a multi-point support device manufactured by omitting the installation of the bracing 42 while providing the arch member 71.

In other words, the arcuate bracket 70 is divided into upper and lower portions around the middle support member 46 so that the upper portion is formed in an arcuate shape, and the lower portion is formed in a truss on both ends of the intermediate support member 46 on the upper portion of the intermediate support member. While installing the arch member 71 to be connected to the central portion, a plurality of upper vertical members 44 are respectively installed so as to be connected to the arch member 71, the plurality of lower vertical members in the middle of the lower portion of the intermediate support member 46 The lower lower chords are provided at the ends of the lower vertical members 49 on both sides while respectively installing 49 and installing the lower yarn 50 on both sides of the intermediate support member 46. And the inclined support member 47 at the center of the lower yarn 50 at a portion where the intermediate support member and the lower vertical member meet each other in a triangular space formed on both sides by the intermediate support members and the lower vertical member 49 on both sides. ) So as to be made.

Installation in the piers of the arcuate bracket is installed in the same manner as the installation method of Figure 5 and the installation method described in detail later.

7 is a view showing a multi-stage support bracket of the present invention, which is a presidential bracket, wherein a vertical length 32 is installed at right angles to be connected at an end of the upper chord 31 and the upper chord provided so that a predetermined length protrudes to the outside. And the inclined support member 47 which is connected to the middle part of the yarn at the part where the upper chord and the vertical member meet each other and the yarn 33 which connects the ends of the upper chord and the vertical member to each other, and the bridge girders on the upper part of the upper chord 31. A fixing device that can fix and install the wire 61 connected from the support 63 installed in the middle pier 12 in which the 10 is installed is installed, and the pedestal 35 and the upper portion of the upper chord 31 are installed. Mounting bracket 60, which is a multi-point support bracket 20 having a support device 34, is installed on both sides of the piers, and wires 61 connected to the support 63 are installed on both sides of the piers. Formed on top of 60 phase present The wire 61 is fixed to each other in the fixed device.

FIG. 8 is a view illustrating the installation of the triangular bracket of FIG. 4A in the piers, wherein the triangular bracket 30 mentioned in FIG. A is installed on the piers 12 to support the bridge girders 10. It is to be installed at a certain distance away from the bridge girder while installing along the surface on which the pier is installed to support a plurality of the support device 34 to support the bridge girders other than the bridge device. One side of the vertical member 32 of the triangular bracket is installed on both sides of the long side of the pier 12, and the upper chord 31 of the triangular bracket 30 installed on both sides around the pier is connected to each other by means of steel, and The rods 15 are connected to each other and fixed to each other, and the pedestal 35 and the support device 34 are installed on both outer sides of the upper chord 31, and the upper part of the support device is connected to the lower surface of the bridge girder 10. Install so that it can be closely supported.

FIG. 9 is a view illustrating the installation of the triangular bracket of FIG. 4B in a piers, wherein the triangular bracket 30 of FIG. 8 is installed on the piers 12 so as to support the bridge girders 10. It is to be installed at a certain distance so as to support the bridge girders other than the bridge device by installing a plurality of the support device 34 while installing along the surface on which the bridge girder is installed. One side of the vertical member 32 of the triangular bracket is installed on both sides of the long side of the pier 12, and the upper chord 31 of the triangular bracket 30 installed on both sides around the pier is fixed to each other by a steel bar 15. The upper part of the support device, while the support 35 is installed on both outer sides of the upper chord 31 and the support device 34 thereon, while being fixed to each other by a steel bar 15 to a predetermined portion of the vertical member (32). It is installed so as to be in close contact with the lower surface of the bridge girders (10).

10 is a view showing that the truss bracket of the present invention is installed in the piers,

As mentioned in FIG. 5, the upper and lower parts of the intermediate support member 46 are divided into upper and lower parts, and the upper support member 41 is installed at both ends of the intermediate support member, and a plurality of upper parts of the intermediate support member 46 are provided in the center portion. The upper vertical members 44 are respectively installed to be connected to the ends of the upper yarn members 41, and then the upper upper stringers 43 are installed thereon, and the upper upper stringers 43 and the plurality of upper vertical members 44 meet. The bracing 42 is installed in the formed inner space with an X (X).

On the other hand, the lower lower chord while installing a plurality of lower vertical members 49 in the middle of the intermediate support member, respectively, and the lower yarn 50 on both sides of the intermediate support member 46 in the lower part of the intermediate support member, respectively. While connecting to one side of the 48, while connecting the lower lower chord 48 to the ends of the lower vertical member 49 on both sides while installing the bracing 42 in the form of X (X) in the interior of the two sides, The bridge is formed by installing the inclined support member 47 at the center of the lower yarn 50 at a portion where the intermediate support member and the lower vertical member meet each other in a triangular space formed on both sides by the intermediate support 46 and the lower vertical member 49. The girder 10 is installed over the entire surface of one side of the pier 12 or shift 17, the center portion of the intermediate support member 46 to be placed on the pier and a plurality of pedestals 35 on both sides of the intermediate support Install it and above it A support device (34) installed, but the supporting device and the bridge truss-type bracket 40 in a multi-point support bracket 20 is installed, the lower surface of the girder to come into close contact with each other.

The bracing 42 and the inclined support material 47 are installed to maintain the rigidity of the truss bracket 40. In order to support the bridge girder at high pressure, an excessive force is applied to the support device. At this time, the rigidity must be maintained to support this force, so the inclined support material and the bracing are installed.

The truss type bracket 40 is installed between the bridge girders 10 of the bridges in which the bridge girders are laterally opened, and the truss brackets installed on the bridges on the outer side of the bridge that is the outer side of the bridge girders are bridges such as earthquakes. The girder has a fall prevention function to prevent the bridge from moving to the outside of the bridge by moving laterally.

 In addition, the truss bracket can be installed and used in all kinds of bridges mentioned in the present invention.

11 is a view showing that the arch bracket of the present invention is installed in the piers,

5 is the same shape as the truss bracket 40 of FIG. 5, but the arch member 71 is provided instead of the upper sand 41 and the upper top string 43 on the upper portion of the intermediate supporting member 46. Arch bracket 70, which is a multi-point support device 20 manufactured by omitting the installation of the bracing 42, is installed in the same manner as the installation method in the piers in FIG. 10, but the lower vertical member 49 is the piers 12 It is installed on one side of the lower part of the steel rod 15 to the pier 12 to sandwich the connection between each other.

12 is a view showing the installation of the boss-shaped bracket of the present invention to the pier, the vertical pole 32 is installed to form a right angle to be connected at the end of the upper chord 31 and the upper chord provided so that a predetermined length protrudes to the outside And the inclined support member 47 connected to the middle part of the yarn 33 at the portion where the yarn 33 and the vertical material 32 meet each other and the top and vertical material meet each other. In the upper part of the current 31 is installed a fixing device for fixing the wire 61 connected from the support 63 is installed in the middle bridge 12, the bridge girder 10 is installed, the upper current 31 ) A multi-point support bracket 20, which is a multi-point support bracket 20 in which a pedestal 35 and a support device 34 are installed on both sides of the piers 12, is connected to the support 63. The standing strings of the post-mount bracket installed on both sides of the pier (61) (61) Of each other and to connect the wire to the fixed retention mechanism formed on the top.

 The bridge girders 10 are installed on the bridge 12 between the bridge 12 is installed laterally on the bridge 12, the vertical support 32 of the boss-shaped bracket 60, as shown in this figure and FIG. Are installed in close contact with both sides of the pier 12, the lower portion is connected to each other with a lower chord 62, and then connected to both sides of the pier 12 in the transverse direction of the bridge girder 10, a plurality of After the above fixing device is installed, the wires 61 are connected to each other and fixed to the fixing device of the upper chord 31 installed on the left and right of the pier 12 by the support 63 and the wire 61, and then the The upper support device 34 is installed in close contact with the lower surface of the bridge girder 10 to support.

FIG. 13 is a cross-sectional view illustrating a cross-section AA of the rod-shaped bracket of FIG. 12 installed on a pier, in which a support 63 is installed at a pier between bridge girders 10 installed laterally on a pier 12, and a support and a pier. The cross-sectional view showing that the wires are fixed to each other in the fixing device on the upper part of the top installed on both sides of the.

FIG. 14 is a cross-sectional view illustrating a B-B cross section in which the pin-shaped bracket of FIG. 12 is installed in a piers, which is already described in detail with reference to FIGS. 12 and 13, and thus the description thereof is omitted.

All types of brackets mentioned in the present invention can be used interchangeably for all types of bridges, and it is evident that only certain brackets are used for any particular bridge.

In addition, all kinds of brackets mentioned in the present invention can be manufactured using various types of steels such as H, T, L, and steel sheets when used as steel materials, and non-ferrous metals when steels are not used. It can be manufactured and used by using materials using carbon fiber and aramid fiber.

The support device 34 refers to all that can be introduced upward upward force, such as hydraulic jack or screw jack, etc., the reinforcement for the bridge using a plurality of support devices installed in all the brackets described above When the work is carried out, the bridge girders are lifted upwards, and the reinforcement work on the bridge system or the bridge superstructure can be performed.

After installing all types of brackets above the piers or shifts, antirust treatment is performed for rust prevention.

Specifically, the method of installing the bracket on the bridge is as follows.

        1. The method of installing the triangular bracket 30 in the bridge piers to facilitate the rigidity of the bridge and, if necessary, the maintenance and management of the bridge

      a) making the upper chord 31 and the vertical member 32 meet at right angles, but connecting the upper chord end and the vertical end of the vertical member using a yarn 33 to form a triangular bracket 30 to form a right triangle;

       b) installing on both sides of the piers so that the vertical member 32 of the triangular bracket is in close contact with the piers 12;

       c) fixing the upper poles of the triangular brackets installed on both sides of the bridge piers to each other by means of steel rods, or fixing them by means of steel rods on top of each other, or by connecting the upper poles by steel rods to each other by means of steel rods 15 to a certain part of the vertical member. Selectively selecting to construct;

       d) installing the support 35 to the upper side of the upper end of the triangular bracket so that the upper portion of the support device is in close contact with the lower surface of the bridge girder 10; And

       When the installation of the bracket is completed, the anti-corrosion treatment is performed on all the installed devices to prevent corrosion.

          2. The method of installing the truss bracket 40 to the bridge to facilitate the rigidity of the bridge and, if necessary, the maintenance and management of the bridge,

       a) The upper and lower parts of the intermediate support member 46 are divided into upper and lower parts, and are manufactured in a truss shape. A plurality of upper vertical members 44 are respectively provided at the center of the upper support member 41 at both ends of the intermediate support member. During installation, the upper yarn 41 is connected to the end of the upper yarn 41, and then, the upper upper chord 43 is installed thereon, and the bracing 42 is provided in the internal space formed by the upper upper chord and the plurality of upper vertical members 44. It is installed by the X (X), a plurality of lower vertical members 49 are respectively provided in the middle of the intermediate support member in the lower part of the intermediate support member 46, respectively, and the lower yarn 50 on both sides of the intermediate support member While being connected to one side of the lower lower chord 48, while connecting to the lower lower chord 48 to the ends of the lower vertical member 49 on both sides while the inner bracing bracing 42 in the form of X (X) shape Description And the inclined support member 47 at the center of the lower yarn 50 at a portion where the intermediate support member and the lower vertical member meet each other in a triangular space formed on both sides by the intermediate support member 46 and the lower vertical member 49 on both sides. Manufacturing a truss type bracket 40 to install the;

       b) installing the truss bracket over the front surface of both sides of the piers, wherein the center portion of the intermediate support member 46 is mounted on the piers;

       c) installing a plurality of pedestals 35 on both sides of the intermediate support of the truss bracket and installing the support device 34 thereon, such that the support device and the lower surfaces of the bridge girder 10 are in close contact with each other. ; And

       f) When the installation of the bracket is completed, the anti-corrosion treatment is performed to all the installed devices to prevent corrosion.

       The method of installing the arched bracket 70, which is a variant of the truss bracket, on the bridge is the same as that of the truss bracket, but the intermediate support member 46 in step a) of the truss bracket 40 installation method. There is a difference in that a bracket manufactured by omitting the bracing 42 while installing the arch member 71 in place of the truss type is used.

        3. The method of installing the bridge-type bracket (60) to the bridge to facilitate the rigidity of the bridge and, if necessary, maintenance management of the bridge

        a) the vertical pole 32 and the vertical pole 32 installed so as to be connected to each other at the end of the upper pole and the vertical pole 32 installed so as to have a predetermined length to protrude to the outside, the yarn (33) connecting the ends of the vertical pole with each other; ) And the inclined support member 47 connected to the middle portion of the yarn at the portion where the upper chord 31 and the vertical member meet each other, thereby manufacturing a dead-wall bracket 60;

       b) installing a support (63) on the pier (12) between the bridge girders (10) while installing the vertical member (32) of the sloping bracket (60) over both side surfaces of the pier (12);

       c) a plurality of wires 61 fixing devices are installed on the upper chord 31 of the mounting bracket 60, and the wires 61 connected to the support 63 are attached to the fixing devices of the upper chord 31 on both sides. Connecting and fixing each other;

       d) installing a pedestal and a support device on the upper end of the columnar bracket, such that the upper part of the support device can be closely attached to the lower surface of the bridge girder;

       e) When the installation of the bracket is completed, the anti-corrosion treatment is performed to all the installed devices to prevent corrosion.

       In addition, when all of the above brackets need to be reinforced, the bridge girder may be lifted upward, and then the bridge device may be repaired.

The present invention provides a method of repairing and reinforcing a bridge at the same time as providing rigidity to a bridge by a multi-support method using a multi-point support bracket. Reinforcing the bracket using a method of installing multiple points of the bridge with a plurality of supporting devices by the support of the bracket and using a truss type member, an arch type member or a tension member such as a cable or a wire as a bracket reinforcement type. By reinforcing brackets to support the support device, it is possible to effectively distribute the bearing pressure and reaction force generated in the existing point portion to the multiple points, and secondly, to effectively distribute the bearing pressure and reaction force to reduce the point portion momentum. Thirdly, due to the reduction of the space according to the multi-point installation, It is possible to increase the load capacity of the bridge relatively by inducing the decrease of the static moment in response to the live load. Fourth, the construction is possible regardless of the traffic of the vehicle during the repair and reinforcement of the bridge. It is a construction method that can be constructed and can be constructed if only a minimum work space is secured at the point. Since the support device is installed on the lower part of the bridge girder, the upward pressure is introduced to the support device for future maintenance to lift the bridge girder up. It is very convenient to enhance the bridge's stiffness, which can facilitate the repair work without installing a separate device for maintenance reinforcement work by repairing the bridge. It is a very economical installation method that can reduce the budget for maintenance and new bridges by extending it.

1 is a longitudinal sectional view showing a state in which a slab bridge is reinforced construction by the load-bearing reinforcement method of the conventional bridge using a prefabricated bracket.

2 is a perspective view attached to a slab bridge by the repair and reinforcement apparatus of the bridge using the conventional truss member, and its method.

Figure 3a, b is a front view and a longitudinal cross-sectional view configured by the conventional bridge reinforcement method and its structure.

Figure 4a, b is a view showing a triangular bracket that is a multi-point support bracket of the present invention.

5 is a view showing a truss-type bracket that is a multi-point support bracket of the present invention.

Figure 6 is a view showing an arcuate bracket that is a multi-point support bracket of the present invention.

Figure 7 is a view showing a dead bracket which is a multi-point support bracket of the present invention.

8 is a view showing that the triangular bracket of Figure 4-a is installed on the piers.

9 is a view showing that the triangular bracket of Figure 4-b is installed on the piers.

10 is a view showing that the truss bracket of the present invention is installed in the piers.

11 is a view showing that the arch bracket of the present invention installed on the piers.

Figure 12 is a view showing that the mounting bracket of the present invention installed on a piers.

FIG. 13 is a view showing an A-A cross section of the rod-mount bracket of FIG. 12 installed on a piers; FIG.

Figure 14 is a view showing the B-B cross-section installed on the piers of the boss-shaped bracket of Figure 12.

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

10 bridge girder 11: bridge slab

12: pier 13: reinforcement

14: teaching device 15: steel rod

16: anchor bolt 17: shift

20: multi-point support bracket

30: triangle bracket 31: phase present

32: vertical material 33: yarn

34: support device 35: pedestal

40: truss bracket 41: upper material

42: bracing 43: upper phase current

44: upper vertical member 45: upper yarn

46: intermediate support material 47: inclined support material

48: lower lower chord 49: lower vertical members

50: lower yarn

60: boss bracket 61: wire

62: lower current 63: support

70: arch bracket 71: arch member

80: connection support

90: steel plate girder 91: abdomen

92: support device support frame 93: vertical plate

94: spacer 95: anchor bolt hole

96: adding plate

Claims (9)

The multi-point support brackets are selected by triangular brackets, truss brackets, arch brackets and dead-wall brackets installed on the bridges or bridges under the bridge girders mounted on the bridges or bridges. Multiple supporting devices are installed to support the bridge by using the bracket with multiple supporting devices, which is characterized in that the supporting device is installed on the bracket to support the bridge girder by acting as multiple support points at the bottom of the bridge girder. Branch support bracket.        The method of claim 1,        The triangular bracket is manufactured so that the upper chord and the vertical member meet at right angles, but the upper chord end and the vertical end of the vertical member are connected to each other using a yarn to form a right triangle bridge using a bracket having a plurality of supporting devices installed thereon. Multi-point support bracket installed to support the.        The method of claim 1,        The truss type bracket is divided into upper and lower parts of the middle support member and manufactured in a truss shape. The upper support member is installed at both ends of the intermediate support member at the upper part of the intermediate support member, and a plurality of upper vertical members are respectively installed at the center part and the ends of the upper member. The upper upper chord is installed thereon, and the upper upper chord and the plurality of upper vertical members are installed in the inner space formed by bracing with an X, and the middle part of the lower part of the intermediate supporting member Each of the two lower vertical members, while connecting the lower lower chords to the ends of the lower vertical chords while connecting the lower lower chords while installing the lower yarns on both sides of the intermediate support member, The bracing is installed in the form of a ruler, and by means of the intermediate supports on both sides To support the bridge using a bracket with a plurality of support devices, which is characterized in that the inclined support member is installed in the center of the lower yarn at the portion where the intermediate support member and the lower vertical member meet each other in a triangular space formed at the side. Multi-point support brackets installed for safety.        The method of claim 1,        The arcuate bracket is divided into upper and lower parts of the middle support material, and the upper part is formed in the truss shape of the arcuate lower part. It is installed to be connected to the arch member, and each of the plurality of lower vertical members are installed in the middle of the lower portion of the intermediate support member, and the lower vertical member on both sides while being connected to one side of the lower lower chord while installing the lower yarn from both sides of the intermediate support member Connected to the lower lower chord at the end of the fabrication, and the intermediate support and the lower vertical member in the triangular space formed on both sides by the intermediate support member and the lower vertical member in the place where the inclined support member is installed in the center of the lower yarn There are a number of supporting devices which are characterized by one. Multipoint support bracket using the bracket provided so as to support the bridge.         The method of claim 1,         The boss-type bracket is connected to the end of the upper chord and the upper chord installed so that a predetermined length protrudes to the outside, but the vertical member and the upper chord and the vertical chord that connects the ends of the upper chord and the vertical member mutually meet each other Supports installed on the piers while installing inclined support connected to the middle part of the sand material at the part and fixing the wires connected from the support installed on the middle piers where the bridge girders are installed on the upper part of the phase current Multi-point support brackets installed to support bridges using brackets with multiple support devices, characterized in that the wires are connected to each other to fix the wires to the fixing devices formed on the upper chords installed on both sides of the bridge. .         In the method of installing a bracket and a support device on the bridge to facilitate the rigidity of the bridge and, if necessary, maintenance and management of the bridge,       a) making the upper chord and the vertical member so as to meet at a right angle but connecting the upper chord end portion and the vertical end of the vertical member to each other using a yarn to form a triangular bracket to form a right triangle;        b) installing on both sides of the piers so that the vertical member of the triangular bracket is in close contact with the piers;        c) connecting the upper chords of the triangular brackets installed on both sides around the bridge piers to each other with steel rods, and connecting the top chords with steel rods to each other, or connecting the top chords with steel rods to each other with steel rods to a certain part of the vertical member. Selectively selecting and constructing one;        d) installing a support and a support device on both outer sides of the upper end of the triangular bracket so that the upper part of the support device is in close contact with the lower surface of the bridge girder; And        The installation of the multi-point support bracket installed to support the bridge by using a bracket having a plurality of support devices, characterized in that the anti-corrosion treatment to prevent the corrosion by installing all the devices when the installation of the bracket is completed Way.         In the method of installing a bracket and a support device on the bridge to facilitate the rigidity of the bridge and, if necessary, maintenance and management of the bridge,        a) It is manufactured in a truss shape by dividing the upper and lower parts of the middle support member, and installing the upper yarns at both ends of the intermediate support member at the upper part of the intermediate support member, and connecting the ends of the upper yarn while installing a plurality of upper vertical members at the center part, respectively. Then, the upper upper chord is installed thereon, and the bracing is installed in an internal space formed by the upper upper chord and the plurality of upper vertical members, and the lower middle of the intermediate supporting member is disposed in the same manner as the upper part of the lower supporting member. A plurality of lower vertical members are respectively installed in the part, and lower lower chords are connected to the ends of the lower vertical chords on both sides of the lower vertical chords, while lower lower chords are installed on both sides of the intermediate support member, respectively. Install the bracing in the form of (X) shape, and the intermediate supports on both sides and the lower vertical member By the steps of manufacturing the truss type bracket the intermediate support material and the lower sujikjae the space on the triangle formed on both sides so as to install the inclined support member at the center of the lower sajae in part meet one another;        b) installing the truss bracket over the front surface of both sides of the piers, wherein the center portion of the intermediate support member is installed on the piers;        c) installing a plurality of pedestals on both sides of the intermediate support of the truss bracket and installing a support device thereon such that the support device and the lower surfaces of the bridge girder are closely attached to each other; And        f) Multi-point support bracket installed to support the bridge by using a bracket with a plurality of support devices characterized in that the anti-corrosion treatment to prevent the corrosion by installing all the devices when the installation of the bracket is completed How to install         The method of claim 7, wherein        Multi-point support installed to support the bridge by using a bracket having a plurality of support devices, characterized in that the step of omitting the bracing while installing the arch member on the upper portion of the intermediate support in step a) Brackets.         In the method of installing a bracket and a support device on the bridge to facilitate the rigidity of the bridge and, if necessary, maintenance and management of the bridge,         a) the material connecting the end of the vertical material and the vertical current and the vertical material installed to form a right angle and the vertical current installed so that a certain length protrudes to the outside, the vertical current and the vertical material where the upper current and the vertical material meet each other Producing a boss-shaped bracket by installing an inclined support material connected to the middle portion of the;        b) installing a support on the piers between the bridge girders while installing the vertical members of the ridges over the front sides of the piers;        c) installing a plurality of wire fixing devices on the upper chord of the boss-type bracket and connecting and fixing the wires connected to the support to each of the upper chord fixing devices installed on both sides;        d) installing a pedestal and a support device on the upper end of the columnar bracket, such that the upper part of the support device can be closely attached to the lower surface of the bridge girder;        e) Multi-point support bracket installed to support the bridge by using a bracket with a plurality of support devices characterized in that the anti-corrosion treatment to prevent the corrosion by installing all the devices when the installation of the bracket is completed How to install