KR20040082059A - Apparatus for reinforcing slab installing the upper and lower cover plate and fixing device of tension materials in prelexed H-type beam, and method for reinforcing slab using the apparatus - Google Patents

Abstract

PURPOSE: A slab reinforcement method using upper and lower cover plates and a tendon anchorage on a preflex H-beam is provided to improve the efficiency on a concrete bridge structure by reinforcing a slab or a beam and heightening the load bearing strength, to cut down the construction cost by using small-size members and to apply for a bridge or a concrete structure effectively by minimizing the reinforcement section. CONSTITUTION: The slab reinforcement method using upper and lower cover plates and a tendon anchorage on a preflex H-beam comprises the steps of: manufacturing a slab reinforcing H-beam(20) by forming projections on an H-beam and welding vertical reinforcements on a web at regular intervals, welding an upper cover plate on an upper plate temporarily, installing a lower cover plate on a lower plate, welding a lower cover plate on both ends of a beam temporarily, joining a high-tension bolt to the center temporarily and applying prestress and welding/bolting the temporary welded and joined parts completely; installing pier and abutment supporters(40,30) to place the slab reinforcing H-beam(20) over an abutment and a pier of a slab bridge; installing the slab reinforcing H-beam(20) to the pier and abutment supporters(40,30), installing a height regulator(55) between the pier and abutment supporters(40,30) and the slab reinforcing H-beam(20), then unifying the slab reinforcing H-beam(20) and the base of the slab by an anchor or epoxy; and rust-proofing the slab reinforcing device.

Description

Apparatus for reinforcing slab installing the upper and lower cover plate and fixing device of tension materials in prelexed H-type beam , and method for reinforcing slab using the apparatus}

The present invention is applied to the slab bridges and beams of the slab bridges and concrete structures to improve the aging or load bearing capacity in the slab reinforcement device and the slab reinforcement installation method and the upper and lower cover plate and tension member fixing device installed on the preflex H-beam In this regard, the H-beams are raised and the abdomen is welded vertically with reinforcement at regular intervals, the upper plate is welded to the upper plate, and the lower cover plate is to be installed at both ends of the H-beam. The lower cover plate is welded and the center part is made of high-strength bolt, and then the pre-stress is applied again, and then the welded and high-strength parts are completely welded and high-strength bolted to manufacture a slab reinforced H beam. ,

When the bridge is installed on the pier, the pier supporting devices are installed on both sides of the pier so as to mount the slab-reinforced H-beams on the pier, and then connected with each other using steel bars. After fixing the alternating support device, the slab reinforced H type beam is mounted and mounted between the pier or the alternating support device and the slab reinforced H type beam so that the slab reinforced H type beam is closely connected to the lower surface of the slab. After it is integrated with the slab by using anchor bolt or epoxy, anti-rust treatment is needed, and when it is necessary to reinforce the slab reinforced H-beam and increase the reinforcement and supporting load of the bridge, the slab-reinforced H-beam Tension member fixing device is installed on both sides to introduce tension force to the tensioner, and the tension member is settled to use tension force tension hydraulic jack. By introducing or tendons fixing device is installed at the center DB radiator is installed on both sides of the tensile force is introduced.

In addition, the through-bar anchor penetrating the entire thickness of the slab and the beam of the slab bridge or concrete structure penetrates to both sides of the slab-reinforced H-beam and then fixed with a fixing nut and the slab or beam through which the penetrating steel bar anchor is penetrated. It is fixed to the upper part with fixing nut and filled with epoxy to prevent loosening and corrosion.In the case of slab bridge, the perforated part of the perforated asphalt formed on the slab is filled with epoxy, and the slab reinforced H-beam and slab or beam Anti-rust treatment after integrating with the lower part of the anchor and anchor bolt or epoxy, and reinforcing the slab reinforcement H-beam later, when it is necessary to increase the reinforcement and supporting load of slab and beam, After installing the slab reinforcement device on both sides of the tension material fixing device for introducing the The tension force is introduced by using the tension material tension hydraulic jack, or after installing the tensioner by installing a divider at the center where the tension material fixing device is installed at both sides, the tension material is introduced using the tension material tension hydraulic jack.

As another example, in order to reinforce the slab or beam of the concrete structure and to increase the supporting load, it is raised on the H-beam, and the vertical material is welded at regular intervals on the abdomen, and the upper cover plate is welded on the upper plate. The lower cover plate is installed on the lower plate, but the lower cover plate is welded at both ends of the H-beam, and the center part is temporarily welded with a high-tension bolt, and then prestressed again. After the bolted slab reinforced H beam is manufactured and the support device is fixed by using anchor bolts to mount the slab reinforced H beam on both side walls supporting the slab or beam of the concrete structure. Mount the beam and adjust the height between the support device and the slab reinforced H-beam After installing the slab reinforced H-beam closely with the lower surface of the slab to be integrated with the slab using an anchor bolt or epoxy, and then rust preventive treatment, and later to re-tension the slab reinforced H-beam of the slab or beam If it is necessary to increase the reinforcement and supporting load, install the slab reinforcement device on both sides of the slab reinforcement device to introduce tension force to the slab reinforcement H-beam, and fix the tension material to introduce tension force using the tension material tension hydraulic jack. .

The present invention relates to a method for constructing reinforcement using a slab reinforcement device installed on slab bridges or beams of a slab bridge or concrete structure to improve aging or load bearing capacity by using a preplex H-beam with upper and lower cover plates. And fix the pre-plex H-beams with upper and lower cover plates using a support device for supporting the slab-reinforced H-beams installed in the slabs and beams of slab bridges or concrete structures, or through-bar anchors installed through the slabs or beams. Reinforce the slab as the stiffness of the H beam by installing it in the lower part of the slab or beam, and install the tension fixing device on both sides or at the center of the installed slab reinforced H beam when re-tension or additional load bearing force is required. Install an additional divider and the tensioner on both sides It provides a construction method to improve the stiffness and load bearing capacity of slabs and beams of slab bridges or concrete structures by additionally applying tension to the tension member fixing device using fixtures and using tension material tension hydraulic jacks on one side of the tension member. have.

Another object of the present invention is to increase the load resistance to the existing slab by the stiffness and tension of the pre-flax H-beam and the H-beam using a tension member attached to the cover plate reduced in height than conventional slab reinforcement by a method of reinforcing Maintenance can be performed by retension of tension material after reinforcement, and additional increase of dead weight can be minimized by using pre-plex H-beam and tension material with small size upper and lower cover plate, and use portable tension material tension hydraulic jack. As a method to avoid tension from the place by introducing tension force to the tension member, if the reinforcement is carried out according to the prior art, it is difficult to expect the long-term reinforcement effect and the constraint factor that the structural section of concrete structure is significantly reduced. City that can be effectively applied to many structures that could not be There is provided a method.

Due to the development of the industry and the development of vehicle manufacturing technology, the size of road vehicles and the weight of vehicles are increased, so that the load bearing capacity required at the time of design is generated on the slabs such as bridges. Due to the deflection of the slab or beam has been required to improve or reinforce the performance of the slab of the slab bridge or the slab and beam of the concrete structure.

Due to this need, various methods using carbon fiber, mortar, steel plate and other high-strength steel molds have been developed and actively reinforced. In the case of adhesive reinforcement method using materials such as mortar, steel plate, etc., it is effective at the time of reinforcement due to the material characteristics of concrete structure, but gradually the reinforcement effect decreases and it is not possible to obtain long-term reinforcement effect as a defect factor due to material separation In case of the method of installing and reinforcing steel molds with high profile in the lower surface of the concrete structure slab, the construction cost increases due to the reinforcement using a large amount of steel and the large number of molds in the lower part of the concrete structure slab. To take up space If the space is small or there is no room for the height of the vehicle to run under the slab of the concrete structure, reinforcement may not be performed. Therefore, the reinforcement may not be performed properly, resulting in deterioration of the slab bridge or concrete structure. As a result, traffic restrictions and the deterioration of concrete structures may cause factors.

Conventional techniques mentioned above include an adhesive reinforcement method using materials such as carbon fiber, mortar, and iron plate, and the construction method is carbon fiber, mortar, iron plate after surface treatment on the lower surface of the existing concrete structure slab. By attaching a material having high back rigidity to the lower surface of the slab, the rigidity of the concrete structure slab is increased by the rigidity of the material. However, in the case of the attachment method using materials, it is a method of attaching and reinforcing materials with high stiffness different from the material characteristics of concrete structures. There is a problem that the adhesion performance of the gradual deterioration occurs, the effect at the time of reinforcement is reduced over time, and the construction cost is increased because the reinforcing material uses expensive materials.

Another conventional technique is a reinforcement method using a high mold height steel mold, and the construction method is a method of installing and reinforcing a high mold steel mold on the lower surface of a concrete structure slab using an anchor or an appropriate support. There is a method of reinforcing the stiffness of slab as stiffness of steel mold, but it takes up a lot of mold space by reinforcing using steel mold with high mold height. There has been a problem that the applicability falls when there is.

The present invention has been proposed in order to solve the above-mentioned problems, the slab reinforcement H to minimize the height of the slab in the slab bridges or beams of the slab bridge or concrete structure H-beams are installed integrally with the slab or beams to primarily reinforce the slab reinforcement H Reinforcement using the self-rigidity of the beam and install tension device fixing device for re-tension when re-tension or increase of supporting load is required to introduce additional tension to tension material to improve performance and reinforcement of bridge or concrete structure. It is to provide a construction method to be carried out.

Figure 1 (a) (b) (c) is a view showing a process of manufacturing a slab reinforced H-beam by introducing a preplex to the H-beam of the present invention and installing the upper and lower cover plates.

Figure 2 is a view showing an alternate support device for installing the alternating slab reinforcement H-beam of the present invention in order to support the shift.

Figure 3 is a view showing a pier supporting device installed on the pier to support the slab reinforced H-beam of the present invention in the pier.

4 is a view showing a supporting device installed on both side walls to install the slab reinforced H-beam to the slab or beam of the concrete structure as another example of the present invention.

5 is a view showing a through-steel bar anchor installed through the slab to fix the preflex H-beam of the present invention to the slab.

Figure 6 (a) (b) (c) is a view showing the slab reinforcement by installing the slab reinforcement H-beam of the present invention to the pier or alternating support device.

Figure 7 (a) (b) (c) is a view showing that the slab reinforcement by fixing the fixed ends using the through-rod bar anchor penetrating the slab of the slab reinforced H-beam of the present invention.

8 is a view showing a tension member fixing device of the present invention.

9 shows a aviator of the present invention.

Figure 10 is a detailed view of the unit assembly constituting the tension guide tube of the tension material tension hydraulic jack of the present invention.

11 is a view showing a tension member tension hydraulic jack for introducing a tension force to the tension member mounted on the tension member fixing device installed on the slab reinforced H-beam of the present invention.

<Description of Major Symbols in Drawing>

A ... shift B ... pier

10 ... H beam 11 ... upper plate

12 ... lower plate 20 ... slab reinforced H-beam

21 ... upper cover plate 22 ... lower cover plate

23 ... high tension bolt 24 ... vertical reinforcement

30 ... Shift support 30-1 ... Support

31 ... vertical support plate 32 ... top plate

33 ... anchor hole 34 ... support

40 ... Pier support 41 ... Steel rod support

42 ... steel bar 43 ... right and left connecting steel bar

50 ... through-hole bar anchor 51 ... fixing nut

52 ... Perforation 53 ... Epoxy

54 ... slab 55 ... height adjustment

60 ... slab reinforcement 70 ... tension fixing device

71 ... tension through hole 72 ... bottom plate

73 ... support plate 74 ... spacer

75 ... anchorage 76 ... tension

80 ... Deviator 81 ... Attachment

82 ... home 83 ... separator

84 ... But 90 ... Unit Assembly

91 ... Spherical protrusion 92 .. Through hole

93. Insertion groove 94 ... Body

100 ... tension guide 110 ... tension tension hydraulic jack

120 ... Hydraulic jack body 121 ... Fixing head

122 ... Hydraulic inlet for release 123 ... Hydraulic inlet for tension

The present invention rises to the H-beam (10) and welded vertical reinforcement (24) at regular intervals on the abdomen, the upper plate 11 is welded to the upper cover plate 21, the lower plate ( 12) the lower cover plate 22 is installed, but the lower cover plate 22 is welded at both ends of the H-beam 10, and the center portion is temporarily welded with a high tension bolt 23, and then prestressed again. Slab-reinforced H-beams 20 with fully welded and bolted welded and welded parts are manufactured

When installed on the bridge (B) to install the pier supporting device 40 on both sides of the bridge (B) so as to mount the slab reinforcement H-beam 20 to the bridge (B), and then connected to each other using a steel bar 42, After the alternating support device 30 is fixed to the alternating support device 30 using an anchor bolt on the wall surface of the alternating wheel A, the slab reinforcement H-beam 20 is mounted and the pier or After the height adjustment part 55 is installed between the alternating support devices 40 and 30 and the slab reinforced H beam 20, the slab reinforced H beam 20 is brought into close contact with the lower surface of the slab 54. Anti-rust treatment after integrating with slab 54 using anchor bolt or epoxy, etc. Slab reinforcement H when it is necessary to increase the reinforcement or supporting load of the bridge by retightening the slab reinforcement H-beam 20 later. After installing the tension member fixing device 70 on both sides for introducing tension force to the beam 20, the tension member (7) 6) to fix the tension by using the tension tension tension jack 110, or by installing the tensioner 80 in the center of the tension fixing unit 70 is installed on both sides to introduce the tension.

In addition, the penetrating bar anchor 50 penetrating the entire thickness of the slab bridge or beam of the slab bridge or concrete structure penetrates both sides of the slab reinforcement H-beam 20, and then fixed with a fixing nut 51, The fixing bar 51 is fixed to the upper part of the slab 54 through which the through steel bar anchor 50 is penetrated, and the sealing is made by using epoxy to prevent loosening and corrosion, and in the case of the slab bridge, the upper part of the slab 54. The perforated portion 52 of the asphalt formed in the hole is filled with epoxy 53, the slab reinforcement H-type beam 20 and the lower portion of the slab or beam to be integrated with an anchor bolt or epoxy and then subjected to rust prevention treatment, When the slab reinforced H-beam 20 needs to be re-tensioned later to increase the reinforcement or support load of the slab or beam, both sides of the tension member fixing device 70 for introducing tension to the slab-reinforced H-beam 20 are provided. After installing on After the tension member 76 is settled and the tension member is introduced by using the tension tension jack 110, or the tension member fixing device 70 is installed at the central part where the divider 80 is installed to mount the tension member 76, and then tension the tension member 76. Using the hydraulic jack 110 is to introduce a tension force.

As another example, in order to reinforce the slab or beam of the concrete structure and to increase the supporting load, the H-beam 10 is raised and the abdomen is fixed at regular intervals to weld the vertical reinforcement 24, and the upper plate ( 11) the upper cover plate 21 is welded and installed, and the lower plate 12 is provided with the lower cover plate 22, but the lower cover plate 22 is welded at both ends of the H-beam 10, the center portion After pre-stressing with high-strength bolts 23 and prestressing again, the slab-reinforced H-beam 20 is welded and bolted to the slab or beam of the concrete structure to support the slab or beam of the concrete structure. After fixing the support device 30-1 using anchor bolts to mount the slab reinforcement H-beam 20 on both side walls, the slab reinforcement H-beam 20 is mounted and the support device 30 -1) between the slab reinforced H-shaped beam 20 and the height adjustment unit 55 is installed so that the slab reinforced H-shaped beam 20 is in close contact with the lower surface of the slab 54, such as anchor bolt or epoxy Tension force to the slab reinforced H-beams 20 when it is necessary to increase the supporting load of the slab or beam by re-tensioning the slab-reinforced H-beams 20 so as to be integrated with the slab and to prevent the rust treatment. After installing the slab reinforcing device (60) having the tension member fixing device (70) installed on both sides for introducing the tension member (76), the tension member (76) is used to introduce tension force using the tension member (tension hydraulic jack 110), or the tension member fixing device (70). ) Is characterized in that the tensioner is introduced by installing the divider 80 at the central portion provided at both sides.

Specific construction method is as follows.

In the construction method for slab reinforcement or load bearing capacity of the slab bridge,

It rises on the H-beam 10 and welds the vertical reinforcement 24 at regular intervals on the abdomen, installs the upper cover plate 21 on the upper plate 11, and installs the upper cover plate 21 on the lower plate 12. The lower cover plate 22 is installed, but the lower cover plate 22 is welded at both ends of the H-beam 10, and the center portion is temporarily welded with a high tension bolt 23, and then prestressed again. Fabricating the slab-reinforced H-beam 20 by welding and bolting the provisionally welded portions completely, and allowing the slab-reinforced H-beam 20 to be mounted on the alternating and piers A and B of the slab bridge. Installing the pier and alternating support device (40,30) and installing the slab reinforcement H-beam (20) on the pier and the alternating support device, and the pier and alternating support device (40,30) and the slab reinforcement (H). The height adjusting part 55 is installed between the beams 20. The slab reinforcement H-type beam 20 and the lower surface of the slab 54 is to be integrated by anchor or epoxy, and the slab reinforcement device 60 to the construction through the step of anti-rust treatment.

In addition, in the construction method for the reinforcement of the slab or beam of the concrete structure and to increase the load bearing capacity,

It rises on the H-beam 10 and welds the vertical reinforcement 24 at regular intervals on the abdomen, installs the upper cover plate 21 on the upper plate 11, and installs the upper cover plate 21 on the lower plate 12. The lower cover plate 22 is installed, but the lower cover plate 22 is welded at both ends of the H-beam 10, and the center portion is temporarily welded with a high tension bolt 23, and then prestressed again. Fabricating the slab-reinforced H-beam 20 by completely welding and bolting the provisionally welded portion to the anchor hole 33 formed in the straight support 34 on both side walls supporting the slab or beam of the concrete structure. The anchor bolt is fixed to both side walls and the top plate 32 extending at right angles to the support 34 is installed so that the slab reinforcement H-beam 20 is mounted on the top plate, and the top plate 32 is supported by the support ( By 34) Installing a support device (30-1) installed on both sides of the upper plate (32) at right angles to the support (34) and installing the vertical support plate (31) on both sides of the slab on the support device (30-1). After installing the reinforcement H-beam 20, the height adjustment unit 55 is installed between the support device 30-1 and the slab reinforcement H-beam 20, and the slab reinforcement H-beam 20 and the slab The lower surface of (54) is subjected to the construction process of the step of being integrated using an anchor or epoxy and the step of anti-rust treatment to the slab reinforcement device.

In another embodiment, in the construction method for the reinforcement of the slab or the slab of the slab bridge or concrete structures and reinforcement of the load bearing capacity,

It rises on the H-beam 10 and welds the vertical reinforcement 24 at regular intervals on the abdomen, installs the upper cover plate 21 on the upper plate 11, and installs the upper cover plate 21 on the lower plate 12. The lower cover plate 22 is installed, but the lower cover plate 22 is welded at both ends of the H-beam 10, and the center portion is temporarily welded with a high tension bolt 23, and then prestressed again. The step of manufacturing the slab reinforced H-beam 20 by completely welding and bolting the temporary joint and through-rod anchorage penetrating the entire thickness of the slab or beam to the slab and beam of the slab or concrete structure of the slab bridge (50). ) Is fixed to the fixing nut 51 after penetrating both sides of the slab reinforcement H-beam 20 and the fixing nut 51 on the top of the slab or beam through which the through-rod anchor 50 is penetrated. Fixed and wealth Filled with epoxy for prevention, but the perforated portion 52 perforated asphalt formed on the slab 54 of the slab bridge is filled with epoxy, the slab reinforcement H-beam 20 to the lower part of the slab or beam It is installed through the step of being integrated with the slab or beam with an anchor bolt or epoxy and the anti-rust treatment to the slab reinforcement device.

In addition, it can be applied equally to each of the above construction method is the slab reinforcement H type for use when there is a need to introduce tension force in the slab bridge or concrete structure of the slab for later re-tension or improvement of load bearing capacity After the tension member fixing device 70 is installed at both sides of the beam 20, or after the divider 80 is installed at the center of the tension member fixing device 70 installed at both sides, the tension member 76 is mounted and the tension member tension hydraulic jack ( 110) can be added to the construction process to re-introduce tension.

When described in detail with reference to the accompanying drawings the configuration and effect of the present invention.

Figure 1 (a) (b) (c) is a view showing a process of manufacturing a slab reinforced H-beam by introducing a preflex to the H-beam of the present invention and installing the upper and lower cover plates (a) is the H-beam ( 10), and (b) welds the vertical reinforcement 24 between the upper and lower plates 11 and 12 at regular intervals on the abdomen of the H-beam 10 into which the rise is introduced. In the future, a plurality of vertical stiffeners (24) by narrowing the interval of the vertical stiffeners (24) for reinforcement of the bearing force when penetrating and fixing the through-steel bar anchor (50) through the support or by the support device (30-1) To be installed, the upper plate 11 is welded to the upper cover plate 21, the lower plate 12 is installed on the lower cover plate 22, but the upper and lower plates at both ends of the H-beam (10) 11 and 12 and the lower cover plate 22 is welded, the center portion of the high tension A junction in the tree (23), (c) is again added after the prestressing completely welded and bolts joining the tack welding and the bonding part making the slab reinforcement H-shaped beam (20).

Weld welding is applied to both ends of the H-beam 10, and the high tension bolt 23 is temporarily bonded to pre-stressing to completely eliminate defects such as dropping of welds due to continuous action of live load at the center portion of the positive moment. It is manufactured by conducting welding and high-strength bolt perfect bonding, and it is characterized by continuous maintenance by applying high-strength bolt bonding at the bottom, and it has significantly increased rigidity than using only the rigidity of the existing H-beam. Is possible.

Figure 2 is a view showing an alternate support device for installing the alternating slab reinforcement H-beam of the present invention to support the alternating, in order to be installed on the surface on which the alternating device 56 of the shift (A) is installed "a". "Anchor holes 33 are formed in the support 34 of the shape of the child, and anchored on the alternating surface (A), and the upper plate 32 extending at right angles to the support 34 is installed to install the slab reinforced H-beam. 20 to be mounted on the top plate, vertical support plate 31 is installed on both sides of the upper plate 32 so as to support the upper plate 32 and the support 34 to be in contact with the support 34 at a right angle.

3 is a view showing a pier supporting device installed on the pier to support the slab reinforcement H-beam of the present invention in the pier, it is installed so as to be placed on the surface on which the piercing device 56 of the pier (B) is installed, both sides of the pier As installed in the "a" shaped support (34) is installed on the upper side of the steel bar support that can support the steel bar 42, the upper plate 32 to extend at right angles from the middle of the support (34) ) To make the slab reinforcement H-beam 20 to be placed, and to form a hole for inserting a plurality of left and right connecting steel bars 43 on both sides to support the top plate 32 and the support 34. The vertical support plate 31 is installed on both sides of the upper plate 32.

At this time, the steel rods 42 installed on the steel rod support 41 are to be connected to the pier supporting device 40 installed on both sides of the pier (B) to each other, and to connect the left and right connecting steel bars to the holes formed in the vertical support plate 31 ( 43) is to connect the pier supporting device 40 installed in the pier (B) adjacent to each other by fixing from the side.

4 is a view showing a support device installed on both side walls to install a slab reinforced H-beam to the slab or beam of a concrete structure as another example of the present invention, it is configured with the shift support device 30 described in FIG. However, but the support 34 is formed in a straight shape, the support device 30-1 supports the slab or beam of the concrete structure to support the slab reinforcement H-beam 20 to be installed on the slab or beam of the concrete structure and It is fixed to the anchor hole 33 formed in the support 34 on the side wall by using an anchor. The installation of the slab reinforced H-beam 20 of another example described in this figure follows the process of installation in the slab bridge of the present invention.

FIG. 5 is a view illustrating a through steel bar anchor installed through the slab to fix the preflex H-shaped beam of the present invention to the slab. The through steel bar anchor 50 passes through the slab and the beam of the slab bridge or concrete structure. In order to fix the slab reinforcement H-beam 20 by installing it, in the case of the slab bridge, the slab is formed by drilling the asphalt pavement in the upper part of the slab and penetrating the entire thickness of the slab 54 to install the through steel bar anchor 50. The fixing steel nut is fixed to the upper part 51 and the asphalt boring part 52 is filled with epoxy 53 to prevent leakage or corrosion, and penetrated steel bar anchors penetrating both ends of the slab reinforcement H-beam 20 ( The bottom of the 50 is fixed with a fixing nut 51 and fixed with the slab reinforcement H-beam (20).

Figure 6 (a) (b) (c) is a view showing that the slab reinforcement by installing the slab reinforcement H-beam of the present invention in the pier or alternating support device, (a) to the alternating or pier (A, B) After installing the pier supporting device 40 on both sides of the pier B as described in FIG. 3 so as to mount the slab reinforcement H-shaped beam 20, the steel bars 42 are connected to each other and installed on the side adjacent to each other. Using a left and right connecting steel bar 43 inserted into the vertical support plate 31 of one pier support device 40, and fixed to each other, the shift (A) as shown in Figure 2 alternately shift support device 30 After fixing the shift support device 30 using an anchor bolt on the wall surface of (A), the slab reinforcement H-beam 20 is mounted, and the pier or shift support devices 40 and 30 and the slab reinforcement H are mounted. A height adjusting part 55 is installed between the beams 20 so that the slab reinforcement H-beams 20 are provided with the lower surface of the slab 54. After contact with the slab reinforcement device to be integrated with the slab using an anchor bolt or epoxy to prevent corrosion, such as corrosion prevention, or (b) the slab reinforcement H-beam (20) installed through the above (a) process When it is necessary to re-tension and increase the reinforcement or support load of the bridge, the slab reinforcement device 60 is provided with the tension member fixing device 70 installed at both sides for introducing tension force to the slab reinforcement H-beam 20. After the tension member 76 is settled and the tension force is introduced by using the tension member tension hydraulic jack 110, or (c) the tension member fixing device 70 installed in the slab reinforcement H-beam 20 installed through the process (a) is By installing the tensioner 80 in the central portion installed on both sides to introduce a tension force so that the upward force of the tension material is transmitted to the slab of the slab bridge by the divider 80.

Figure 7 (a) (b) (c) is to improve the reinforcement and load-bearing capacity of the slab or beam by fixing the fixed ends of the slab reinforcement H-beam beam through the through-rod anchorage through the slab or beam of the present invention As shown in FIG. 5, the present invention is applied to reinforcement of slabs and beams of slab bridges or concrete structures, and to improve load bearing capacity. (A) Through-bar anchor 50 penetrating the entire thickness of the slab or beams is described in FIG. 5. After penetrating both sides of the slab reinforcement H-beam 20 is fixed with a fixing nut 51 and fixed to the upper portion of the slab or beam through which the through-steel bar anchor 50 is penetrated and prevented loosening And the sealing seal with epoxy to prevent corrosion, and in the case of the slab bridge, the perforated part 52 formed by drilling the asphalt formed on the slab 54 is filled with epoxy 53 to reinforce the slab-reinforced H-beam 20. It is installed under the slab 54 and integrated with the slab by anchor bolt or epoxy, and (b) slab reinforcement H-beam 20 installed through the process (a) to retighten the slab bridge or the slab of the concrete structure. And tension member after installing slab reinforcement device 60 having both sides of tension member fixing device 70 for introducing tension force to slab reinforcement H-beam 20 when it is necessary to increase the reinforcement or support load of the beam. Fixing (76) to introduce tension force using the tension material tension hydraulic jack 110, or (c) the tension material fixing device 70 of the slab reinforcement H-beam 20 installed through the process (a) is installed on both sides After installing the tensioner 80 in the center to mount the tension member, the tension force is introduced using the tension member tension hydraulic jack 110, and the upward force is increased by the tension member 76 having the upward force by the divider 80. Delivered It is.

8 is a view showing the tension member fixing device of the present invention, which is installed in the lower portion of the slab reinforcement H-beam 20, the anchor hole 33 formed in the bottom plate 72 in contact with the lower portion of the beam 20 The tension member 76 is penetrated by fixing the anchor and formed in the center of both sides of the support plate 73 vertically installed on the bottom plate 72 so that the tension member 76 penetrates and is fixed by the fixing unit 75. The spacer 74 is installed in the opposite direction in which the tension member 76 is settled so that the 73 and the bottom plate 72 can be supported to each other when the tension member 76 is tensioned on the support plate 73. To make it work.

FIG. 9 is a view showing a divider of the present invention, in which an anchor hole 33 is formed in an attachment plate 81 installed to be in contact with a lower portion of the slab reinforced H-beam 20, and thus the slab reinforced H-beam 20. And anchoring and installing the support member 84 at right angles to the attachment plate 81, but constant so as to form a constant groove 82 so that the tension member 76 is not separated between the grooves 82 When the separation plate 83 is installed at the upper portion of the support member 84 at intervals, the tension member 76 is mounted between the grooves 82 to introduce tension force to the tension member 76. This is to prevent the departure of the so as to raise the upward force to the tension member 76 as much as the height of the support material 84 to be transmitted to the slab reinforcement H-beam (20).

10 is a detailed view of the unit assembly forming the tension guide tube of the tension tension jack of the present invention, the unit assembly 90 has a cylindrical body portion 94, the front surface of the spherical protrusion 91 is integrally formed An insertion groove 93 is formed at the center of the cylindrical body portion 94 and a through hole 92 is formed at the center of the spherical protrusion 91.

11 is a diagram illustrating a tension member tension hydraulic jack for introducing a tension force to a tension member mounted on a tension member fixing device installed in the slab-reinforced H-shaped beam of the present invention, the tension member tension hydraulic jack 110 includes a tension member guide tube 100 and a hydraulic jack body ( 120 and the fixing head 121, the tension guide tube 100 is formed to be flexible by continuously connecting the spherical protrusion 91 of the unit assembly 90 described in Figure 10 to the insertion groove (93). The tension member 76 penetrates the through hole 92 formed in the center of the spherical protrusion 91 of one tube to make the tension member 76 flexible, so that even where the tension force cannot be introduced into the tension member 76. In order to easily introduce a tension force, the hydraulic jack body 120 connected to the tension guide member 100 is formed with hydraulic injection holes (123, 122) for tension and dismantle tension member 76 tension guide member (100) of Injection holes 123 and 122 are provided for releasing the hydraulic pressure when the hydraulic force is introduced or released when the tension force is introduced into the tension member 76 passing through the hydraulic jack body 120 and passed through the fixing head 121. Dragon head 121 is to fix the tension member 76 to fix the tension member 76 when the tension force is introduced to the tension member 76 is fixed.

The present invention is mounted on the lower surface of the slab or beam of the slab bridge or concrete structure and integrated with the low-shaped slab reinforcement H-beam and integrated with the slab reinforcement H when it is required to repair or reinforcement by increasing the rigidity or to increase the load bearing capacity. Tension member is installed on the lower surface of the beam, or an additional divider is installed at the center of the tension member to mount the tension member, and then tension force is applied to the tension member using the tension tension hydraulic jack. It is possible to improve the performance of concrete bridge structures by improving the reinforcement and load bearing capacity of slabs or beams by transferring the force of them, and the conventional reinforcement by installing and reinforcing high strength steel molds and adhesives Constructability and applicability are better than the method, and construction cost by applying small size It is a very useful construction method that can be effectively applied to bridges or concrete structures in which urban bridges and lower spaces are limited because the reduction and reinforcement cross sections can be minimized.

Claims (12)

Install the pier and alternating support device to mount the slab reinforced H beam on the alternating and pier of the slab bridge, and install the slab reinforced H beam to the pier and alternating support device, and the pier and shift support device and the slab. The height adjustment part is installed between the reinforced H beam and the slab reinforced H beam and the lower surface of the slab are integrated, and the anti-rust treatment is used to reinforce the slab or enhance the load bearing capacity by using the stiffness of the slab reinforced H beam. Slab reinforcement device with upper and lower cover plate and tension fixing device installed on the H-beam. Install the support device on both side walls supporting the slab or beam to mount the slab reinforcement H-beam on the slab or beam of the concrete structure and fix it with anchor bolts, and then install the slab reinforcement H-beam on the support device. A height adjusting part is installed between the support device and the slab reinforced H-beam, and the slab reinforced H-beam and the lower surface of the slab are integrated and subjected to rust prevention to reinforce the slab or beam by using the stiffness of the slab reinforced H-beam. A slab reinforcement device having an upper and lower cover plate and a tension member fixing device installed on a preflex H-beam, characterized in that load bearing capacity is enhanced. The through-bar anchor penetrating the entire thickness of the slab or beam to the slab and the beam of the slab or concrete structure of the slab bridge is penetrated to both sides of the slab-reinforced H-beam, and then fixed with a fixing nut and the through-rod anchor is penetrated. It is fixed to the upper part of the slab or beam by fixing nuts, and the perforated part of the asphalt formed in the upper part of the slab bridge is filled with epoxy, and the slab reinforced H-beam is integrated into the lower part of the slab and subjected to rust treatment to reinforce the slab. A slab reinforcement device having upper and lower cover plates and tension member fixing devices installed on a preflex H-shaped beam, wherein the slab or beam is reinforced or load bearing capacity is increased by using the rigidity of the beam. The method according to any one of claims 1 to 3, After installing the tension fixing device on both sides of the slab reinforcement H-beam, or installing a divider at the center of the tension fixing device installed on both sides, the tension material is mounted and tension is introduced using the tension material tension hydraulic jack to re-tension in the future. A slab reinforcement device provided with upper and lower cover plates and a tension member fixing device in a preflex H-beam, which is installed for use when there is a need for an increase in load bearing capacity. The method according to any one of claims 1 to 3, Integrating the slab reinforced H-beam into the bottom of the slab or beam to integrate the slab reinforced H-beam and the slab or beam so that the upward force acting on the slab-reinforced H-beam is completely transmitted to the slab or beam. Slab reinforcement device provided with the upper and lower cover plate and the tension member fixing device to the preflex H-shaped beam, characterized in that to be integrated with the slab by anchor bolt or epoxy in order to. The method according to any one of claims 1 to 3, The slab-reinforced H-beams are raised on the H-beams and welded vertical reinforcement at regular intervals on the abdomen, the upper cover plate is welded and installed on the upper plate, and the lower cover plate is installed on the lower plate. The lower cover plate is welded at both ends of the beam, and the center part is temporarily welded with a high-strength bolt, and then prestressed again, and then the welded and welded portions are completely welded and bolted. Slab reinforcement device with upper and lower cover plate and tension fixing device installed. The method of claim 1, The pier supporting device is installed so as to be mounted on the side of the pier's pier device is installed on both sides of the pier to install a steel bar support that can support the steel bar on the upper side of the "b" shaped support and in the middle of the support A vertical support plate having a top plate installed at right angles so that the slab-reinforced H-beams are placed thereon, and a vertical support plate having holes for inserting a plurality of left and right connecting steel bars on both sides thereof so that the top plate can be supported by the support plate; The shift support device forms an anchor hole in the "a" shaped supporter to be anchored to the shift surface to install on the surface on which the alternating shift device is installed, and is fixed to the shift surface by installing an upper plate extending at right angles to the support slab. Reinforcement H-beams are mounted on top of each other, and vertical support plates are placed on both sides of the top plate so that the top plate can be supported by the support. To a reinforced slab apparatus installing the upper and lower cover plate and tendons fixing device in Preflex H-shaped beam, characterized in that provided in contact at right angles to the support. The method of claim 2, The supporting device is fixed to both side walls by using anchors in the anchor holes formed in the straight support on the side walls supporting the slab or beam of the concrete structure, and installed a top plate extending at right angles with the support to install the slab reinforced H-beam The upper and lower cover plates and the tension member fixing device are installed on the preflex H-beam, which is installed on the upper plate so that the upper plate can be supported by the support, and the vertical support plate is installed on both sides of the upper plate so as to be in contact with the support at right angles. Slab reinforcement. The method of claim 4, wherein The tension member tension hydraulic jack is composed of a tension member guide tube and the hydraulic jack body and the fixing head as the tension member guide tube has a cylindrical body portion, a spherical protrusion is integrally formed on the front surface, but an insertion groove is formed at the center of the cylindrical body portion and is spherical. Slab reinforcement device with upper and lower cover plates and tension member fixing device installed on the preflex H-shaped beam, characterized in that the center of the projecting portion has flexibility by inserting and connecting a plurality of spherical protrusions in the insertion groove of the unit assembly in which the through hole is formed. . In constructing the slab reinforcement to improve the slab reinforcement and load bearing capacity of the slab bridge, a) Raise the H-beam and install vertical reinforcement at regular intervals on the abdomen, weld the upper cover plate on the upper plate, install the lower cover plate on the lower plate, and install the lower cover plate on both ends of the H-beam. Fabricating a slab-reinforced H-beam by welding and bolting the cover plate and applying the pre-stress to the center part, and then pre-stressing again the center part; b) installing a pier and alternating support device to mount the slab reinforced H-beam to the alternating and pier of the slab bridge; c) installing the slab reinforced H-beam to the pier and alternating support device and installing a height adjustment between the pier and alternating support device and the slab reinforced H-beam and anchoring the slab reinforced H-beam and the lower surface of the slab. Or to be integrated with the epoxy; And d) Slab reinforcement construction method using the upper and lower cover plate and the tension member fixing device to the preflex H-shaped beam, characterized in that it comprises the step of rust prevention treatment to the slab reinforcement device. In the construction method for reinforcement of slab or beam of concrete structure and reinforcement of load bearing capacity, a) Raise the H-beam and install vertical reinforcement at regular intervals on the abdomen, weld the upper cover plate on the upper plate, install the lower cover plate on the lower plate, and install the lower cover plate on both ends of the H-beam. Fabricating a slab-reinforced H-beam by welding and bolting the cover plate and applying the pre-stress to the center part, and then pre-stressing again the center part; b) Slab-reinforced H-beams are installed by fixing them to both side walls using anchors in the anchor holes formed in the straight support on the side walls supporting the slab or beam of the concrete structure, and installing a top plate extending perpendicular to the supports. Installing a vertical support plate on both sides of the upper plate such that the upper plate is supported by the support so as to be installed at a right angle to the support; c) after installing the slab reinforced H-beam on the support device, install a height adjustment portion between the support device and the slab reinforced H-beam and integrate the slab reinforced H-beam and the lower surface of the slab with anchors or epoxy. Making it possible; d) anti-rust treatment to the slab reinforcement device; And e) Tension fixing devices are installed on both sides of the slab reinforced H-beam for use when there is a need to introduce tension in order to improve re-tension or load bearing capacity later, or a divider is provided at the center of the tension fixing devices installed on both sides. Mounting the tension material after installation and the slab reinforcement construction method using the upper and lower cover plate and the tension material fixing device to the preflex H-beam, characterized in that it further comprises the step of re-introducing the tension force using the tension material tension hydraulic jack. In the construction method for the reinforcement of slabs and beams of slab bridges or concrete structures and to increase the load bearing capacity, a) Raise the H-beam and install vertical reinforcement at regular intervals on the abdomen, weld the upper cover plate on the upper plate, install the lower cover plate on the lower plate, and install the lower cover plate on both ends of the H-beam. Fabricating a slab-reinforced H-beam by welding and bolting the cover plate and applying the pre-stress to the center part, and then pre-stressing again the center part; b) fastening through-bar anchors penetrating the entire thickness of the slab or beam to the slabs and beams of the slab or concrete structure of the slab bridges on both sides of the slab-reinforced H-beam, and then fixing them with fixing nuts; c) The through-steel bar anchor is fixed to the upper part of the slab or beam through the fixed nut and filled with epoxy for preventing corrosion, but the perforated part of the perforated asphalt formed on the slab of the slab bridge is filled with epoxy and slab Installing a reinforced H-beam at the bottom of the slab or beam and integrating with the slab or beam with anchor bolts or epoxy; d) anti-rust treatment to the slab reinforcement device; And e) Tension fixing devices are installed on both sides of the slab reinforced H-beam for use when there is a need to introduce tension in order to improve re-tension or load bearing capacity later, or a divider is provided at the center of the tension fixing devices installed on both sides. Mounting the tension material after installation and the slab reinforcement construction method using the upper and lower cover plate and the tension material fixing device to the preflex H-beam, characterized in that it further comprises the step of re-introducing the tension force using the tension material tension hydraulic jack.