KR20050029366A - Traffic-uncontrolled bridge raising system combining function keeping apparatus in the existing bridge with fabricated temporary junction bridge capable of adjusting height when the upper structure of the bridge is raised, and method for lifting up the bridge without traffic roadblocking using the system - Google Patents

Abstract

A traffic-uncontrolled bridge raising system combining a function keeping device of an existing bridge with a height-adjustable assembly-type junction bridge in raising an upper structure of the bridge and a method for lifting up the bridge without traffic roadblocking by using the system are provided to pass vehicles and pedestrians by holding the constant slope by connecting the bridge and a road surface with raising a girder by a support bracket and to expand an overhead clearance and a water permeating section. Support brackets are installed at long sides of a pier(12). A function keeping bridge seat device is mounted at the lower side of a girder(11) between the support brackets. A raising H-beam is disposed at an under side of the function keeping bridge seat and settled on a prop of the support bracket. Upper and lower sides of the support bracket are linked to each other by a connection steel bar(14). Side-overturn preventing devices(60) are arranged at both sides of the pier. An H-support beam is contacted to the lateral side of the girder. A hydraulic jack(13) is installed on the upside of the H-support beam and the side-overturn preventing device and then connected with the support bracket. Side-overturn preventing steel strand settling brackets(63) are mounted at both sides where a lower part of a coping(15) and a column are contacted to each other. The upper part of the H-support beam and the side-overturn preventing steel strand settling brackets are settled by a side-overturn preventing steel strand(64). The steel strands cross each other on a coping unit. A plate for preventing a step between the girders is installed on the upper part between the girders. An assembly-type junction bridge is installed an entrance bridge on the surface of the road and the bridge by connecting plural unit junction bridges by a hinge. A height adjusting and supporting unit or a bridge support unit is arranged at the lower and lateral sides of a connection unit. The girders are raised gradually according to site conditions of the bridge by using the hydraulic jack. The assembly-type junction bridge installed adjacently to the road surface and the bridge is obliquely raised at the predetermined steepness by the hydraulic jack according to the raised degree of the girder. Steel bars are arranged at the lower side of the girder and an upper structure(10) of the bridge is gradually raised by pouring and curing the concrete. The length of the H-support beam of the side-overturn preventing devices mounted at both sides of the girder is extended by the hydraulic jack to contact and hold the girders from the lateral side.

Description

A traffic uncontrolled bridge lift system combining a function maintaining device of the existing bridge and a prefabricated connecting bridge that can adjust the height at the same time when the bridge is raised, and a method of elevating the bridge without blocking traffic by using the same {Traffic-uncontrolled bridge raising system combining function keeping apparatus in the existing bridge with fabricated temporary junction bridge capable of adjusting height when the upper structure of the bridge is raised, and method for lifting up the bridge without traffic roadblocking using the system}

The present invention is the lower part of the bridge due to the heavy rain that occurs frequently in the bridge, which is a structure that is made for the purpose of overcoming the traffic, rivers, rivers, valleys, potholes and other functions of these passages There is an increasing necessity for lifting the bridge superstructure to increase the height of the bridge under the ground due to the increase in the flow surface of the flowing water flowing through the bridge and the increase of the height of the vehicle passing under the bridge.

Therefore, the present invention for gradually elevating the bridge upper structure according to the necessity of the above was made of a traffic uncontrolled bridge lift system consisting of a functional maintenance device and a prefabricated connection bridge,

The function maintaining device of the existing bridge is installed on both sides of the shift and pier which is a supporting structure for supporting the girder and the bridge superstructure, but the upper structure of the bridge lifting device in pairs in coping between the girder mounted on the top of the bridge and the bridge And connect the lower part of the bridge upper structure lifting device to the interconnecting steel bar using the steel bar fastening support device installed on the upper side of the bridge upper structure lifting device installed opposite to the coping, respectively. Install the function maintenance chair on the lower part of the girder and install the H-beam for horizontally horizontally in the lower part of the girder horizontally, install the hydraulic jack, and then install the support bracket with the H-beam on the pedestal. and,

While the side conduction prevention device is installed on both sides of the pier which is the short side of the pier, it is fixedly fixed to the bridge upper structure lifting device installed adjacent to each other and then between the top of the supporting H beam of the side fall prevention device and the side of the girder. By installing a screw jack to close the side between the support H beam and the girder, and to prevent the bending of the side conduction prevention device and the separation of the girder conduction and side conduction prevention strands on the upper ends of the support H beam installed on both sides of the pier After forming the escape preventing key in the groove, the pair of side conduction prevention strand wire fixing brackets are installed in pairs on the same side of the side where the side conduction prevention device is installed, and the side conduction prevention strand is installed on the one side where the coping lower portion and the pier pillar meet each other. Install the side fall prevention strands on the opposite side after fixing to the installed side conduction preventive strand fixing bracket One side end of the side conduction preventive strand wire is mounted on one side of the side conduction preventive strand wire fixing bracket installed on one side while being mounted in the release preventing key of the side conduction prevention device. Mount the fall prevention strand in the prevention key of the prevention device and fix one end of the fall prevention strand to the other side conduction prevention strand fixing bracket so that the side conduction prevention strands cross each other at the coping part. ,

In the next step, the entrance entrance bridge having a predetermined slope at one side constituting the prefabricated connection bridge is installed on the road surface of the bridge, which is the upper structure of the bridge, and the other entrance entrance bridge is installed in contact with the road surface. The connecting bridge is connected to each other by using a hinged connecting portion, while the entry and exit bridge and the unit connection bridge are connected to each other or the unit connection bridge is connected to each other at the bottom of the hydraulic jack and the height adjustment support or the hydraulic jack and the first support. As the function maintaining device of the existing bridge is gradually raised to raise the bridge upper structure, the hydraulic jack installed in the prefabricated bridge bridge is gradually raised to between the road surface of the bridge, which is the bridge upper structure, and the entrance and exit bridge installed on the road surface. Unit connection bridges connected to the slopes as a whole The height of the bridge or the bridge and the upper slab of the bridge to ensure that the vehicle and pedestrians traveling or walking on the bridge can pass the bridge naturally. The process of forming the bridge substructure that can support the bridge superstructure by pouring concrete is repeatedly performed while raising the bridge superstructure step by step by using the functional retaining device of the existing bridge. The present invention relates to a method of elevating a bridge using a traffic uncontrolled bridge elevation system to secure a height.

An object of the present invention is to elevate the bridge step by step without raising the vehicle and pedestrians passing on the bridge while raising the bridge upper structure for expanding the geometry or the passage surface of the bridge to increase the bridge or repair the bridge device, etc. To provide an economical and efficient way of raising bridges.

Ascending the bridge superstructure using the technology used in the prior art, after fixing the bracket with anchor bolt on the bridge or the bridge under the bridge under the control of the vehicle and the pedestrian passing through the bridge, the hydraulic jack is installed and the upper part of the bridge By raising the structure or installing a temporary vent in the lower part of the bridge superstructure and installing a hydraulic jack thereon, the vehicle and the pedestrian are bypassed when controlling the vehicle and the pedestrian passing through the bridge to raise the bridge. In case of installing separate roads and bridges to secure traffic of vehicles and passers-by, it causes excessive construction cost and excessive overhead costs for bridges and bridges. Fixing the bracket with anchor bolts on piers or shifts In this case, structural damage due to anchors is expected in the bridges or shifts, and if a temporary jack is installed in the lower part of the bridge's upper structure and then lifted by a hydraulic jack, the installation cost and construction period for the temporary vents are separately calculated. The construction period is expected to be prolonged and there is a risk that the upper structure of the bridge will fall in the longitudinal and transverse directions.

Therefore, the present invention has been proposed to improve the above-mentioned problems, the lack of the communication surface of the lower surface of the bridge or the lack of the space of the vehicle caused a problem in the passage of the vehicle, the bridge for the purpose of expanding the communication surface and the space of the bearing Step-by-step installation of the bridge undercarriage while raising the bridge superstructure by installing a prefabricated bridge bridge that allows the vehicle and pedestrians to pass inclinedly and eliminates the step by raising the upper structure step by step with hydraulic jacks. Therefore, to provide a technique for the method of elevating the upper structure of the bridge to allow the traffic of vehicles and pedestrians to pass through the bridge as usual.

The present invention stepped up the upper structure 10 of the bridge by using the functional retaining device 30 of the existing bridge in order to enlarge the communication surface and the die space of all kinds of bridges and at the same time eliminate the step and traffic communication In order to smoothly connect the prefabricated bridge bridge (90) to the bridge and the road surface of the road to communicate with each other during the step of the step of the step of reinforcing steel and concrete on the bridges and bridges of the bridge upper structure step by step bridge upper structure (10 Regarding the ascending method using the traffic uncontrolled bridge ascending system 20 to elevate) up to the planned height,

The function retaining device 30 of the existing bridge is installed on both sides of the alternating and pier which is a supporting structure for supporting the girder and the bridge upper structure, but a pair of copings with the girder 11 mounted on the upper portion of the alternating and pier. The bridge upper structure raising device 40 is installed on the upper portion of the bridge upper structure lifting device installed on the opposite side on the coping while installing the bridge upper structure lifting device 40 and interconnecting the lower part thereof with the connecting steel rods 14. H-shaped beam 49 for raising and lowering evenly on the lower part of the lower part of the girder by connecting and fixing to the interconnecting steel bar 14 by using the steel bar fastening support device 43 and installing the function retaining device 46 directly under the girder. Install horizontally and install the hydraulic jack (13), and then fix the support bracket (42) in which the H-beam (16) is installed on the base (41) at the bottom thereof,

After installing the side conduction prevention device 60 on both sides of the pier, which is the short side of the pier, the H-beam (the support H beam of the side conduction prevention device 60 is fixed and fixed to the bridge upper structure lifting device 40 installed next to each other. A screw jack 19 is installed between the top of the 70 and the side of the girder so that the support H beam 70 and the side of the girder are in close contact with each other and the upper end of the supporting H beam 70 installed on both sides of the piers. After forming the escape prevention key 62 in the groove 61 to prevent the bending of the side conduction prevention device and the fall prevention of the girder and the detachment of the side conduction strand, the side conduction prevention strands where the coping lower portion and the pier pillar meet each other. The fixing bracket 63 is installed on both sides of the same side as the side on which the side fall prevention device 60 is installed, and the side fall prevention strands 64 are fixed to the side conduction prevention strand wire fixing bracket 63 installed on the one side. The side anti-conduction twisted line fixing bracket is mounted on one side of one side of the side anti-conduction twisted line 64 while being mounted on the anti-separation key 62 of the side anti-fall device 60 installed on the opposite side. 63) The side conduction prevention strand wire anchoring and fixed to the other side mounted on the other side and the side conduction prevention strand wire 64 is mounted in the escape prevention key 62 of the side conduction prevention device installed on the opposite side and one side of the fall prevention strand Ends are fixed to the side conduction prevention strand wire fixing bracket 63 on the other side so that the side conduction prevention strands 64 cross each other at the coping portion,

In the next step, the entrance entrance bridge 92 having a predetermined inclined portion at one side constituting the prefabricated connection bridge 90 is installed on the road surface of the bridge, which is the upper structure of the bridge, and the other entrance entrance bridge is installed in contact with the road surface. Then, there is a unit connection bridge (91) between the interconnection assembly installation using a hinge 94 consisting of a hinge between the entry and exit bridge and the unit connection bridge is connected to each other or the unit connection bridge is connected to each other The height adjustment and support 98 or the bridge support 105 is installed to gradually raise the hydraulic jack installed in the prefabricated bridge bridge 90 as the function maintaining device of the existing bridge raises the bridge upper structure 10 step by step. The unit connection bridge between the road surface of the bridge, which is the upper structure of the bridge, When the height of the bridge or bridge and the upper slab is secured, the reinforcement and concrete is cast on the bridge or the upper part of the bridge to allow the vehicle or pedestrian to pass the bridge naturally. The process of forming the bridge substructure that can support the structure is repeatedly carried out while raising the bridge upper structure 10 step by step using the function maintaining device 30 of the existing bridge height of the bridge lower space of the planned height It is characterized by securing.

Hereinafter, the configuration and operation of the present invention by the accompanying drawings in detail as follows.

1 is a view showing the installation of the function maintaining device of the existing bridge in the coping of the traffic uncontrolled bridge lift system of the present invention, the function of the existing bridge which is a device that constitutes the traffic uncontrolled bridge lift system 20 of the present invention It is composed of a retaining device 30 and a prefabricated connecting bridge (90), which shows the installation of the functional retaining device (30) of the existing bridge to the bridge or bridge as a long side of the bridge to form the width of the bridge girder on the bridge Coupling the upper structure of the bridge upper structure raising device while installing the upper structure of the upper structure of the bridge 40 in the coping between the girders installed at regular intervals on the bridge and interconnecting the lower portion with the connecting rod 14 Using the steel bar fastening support device 43 on the upper portion of the bridge upper structure lifting device 40 installed opposite to each other to the connecting steel bar 14 Settle the interconnection and install the function retaining device 46 directly under the girder 11, and install the H-beam 49 for the horizontally horizontally in the lower part and install the hydraulic jack under it. H-beam 16 is installed and fixed on the pedestal 41 of the support bracket 42 which is the device for raising the bridge upper structure,

Side lateral conduction prevention device 60 is installed on both sides of the pier, which is the short side of the pier, but is installed on the long side of the pier and fixed to each other with the support bracket 42 which is the lifting device for the upper structure of the bridge installed adjacent to the lateral conduction prevention device. After fixation, a screw jack 19 is installed between the upper side of the supporting H beam 70 of the side fall prevention device 60 and the side of the girder to closely adhere between the supporting H beam 70 and the side of the girder. To prevent the bridge upper structure 10 from falling off, and to prevent the bending of the side conduction prevention device and the fall of the girder and the detachment of the duct conduction prevention line at the upper ends of the supporting H beams 70 installed on both sides of the bridge. The separation preventing key 62 is installed in the groove 61 formed therein, and the side conduction prevention strand fixing bracket 63 is disposed on the side where the side conduction prevention device 60 is installed at the place where the coping lower portion and the pier pillar meet each other. It is installed on one side and the side fall prevention strands 64 are fixed to the side conduction prevention strand wire fixing bracket 63 installed on one side, and then mounted between the grooves and the separation prevention key of the side fall prevention apparatus installed on the opposite side to prevent side conduction. One side end of the strand (64) is fixed to the side conduction prevention strand wire fixing bracket 63 installed on one side and fixed, and the side conduction prevention strand fixing bracket (63) installed on the other side and the side conduction prevention device (60) installed on the other side While one side end of the anti-conduction twisted wire 64 is mounted between the groove 61 and the separation prevention key 62 of the side of the anti-conduction twisted wire to be fixed to the side conduction-resistant strand wire fixing bracket 63 of the other side The side conduction prevention strands 64 are installed to cross each other at the coping portion.

The side conduction prevention strands 64 are installed to cross each other while being installed on the side conduction prevention apparatus 60 so as to cross each other to be installed on the side conduction prevention strands fixing bracket 63. To prevent it from falling when elevated by the device 40,

The side of the side conduction prevention device 60 to firmly support the girder by adjusting and fixing the upper end of the supporting H beam 70 and the side of the girder 11 by using the screw jack 19. To do this.

In addition, the groove 61 formed in the upper end of the support H beam of the side conduction prevention device and the release prevention key 62 provided outside the groove is the side conduction prevention strand 64 is installed between the groove and the release prevention key is separated The side conduction prevention strand wire fixing bracket 63 and the side conduction prevention twisted wire 64 are also firmly fixed so as to firmly support the supporting H beam 70. The girder 11 is intended to be firmly supported.

The functional maintenance bridge device 46 installed between the lower part of the girder and the upper part of the bridge is at the lower part of the girder when the bridge upper structure is stepped up by the hydraulic jack 13 installed in the bridge upper structure lifting device 40. It is used for placing reinforcing bars and pouring concrete to raise the girder step by step.

2 is a cross-sectional view showing a cross-section AA of the support bracket of the existing functional bridge of the existing bridge of Figure 1, the support bracket 42 of the functional bridge 30 of the existing bridge of the upper structure lifting device 40 of the bridge upper structure; ) Is installed on the lower side of the girder 11 in pairs on both sides of the long side of the piers, and the lower portion thereof is connected to each other by a connecting steel bar 14, the steel bar fastening support device 43 formed on the upper portion of the support bracket 42 And the steel bar fastening support device and the connecting steel bar 14 of the upper part of the support bracket 42 installed on the opposite side of the pier are connected to the hydraulic jack 13 installed on the support bracket 42 to lift the upper bridge structure. To prevent it from falling off.

The support brackets are installed in close contact with the pier surface in pairs, form a pedestal 41, install H beams thereon, install hydraulic jacks thereon, and install H-beams for hikes for even impressions. Steel rod fastening support device 43 is installed above.

The pair of support brackets 42 installed on the long side of the pier at the bottom of the girder allow the girder to be raised in stages using a hydraulic jack.

3 is a cross-sectional view illustrating a BB cross-section of a girder in which a function maintaining bridge device is installed in a coping among the function maintaining devices of the existing bridge of FIG. 1, wherein the support bracket 42 of FIG. 2 is located at a pier long side of the girder 11. It is to install and maintain the function between the girder and the upper part of the pier to raise the height of the girder by raising the girder step by step to extend from the functional maintenance bridge device 46 on both sides of the girder. The side reinforcing portion 45 is in close contact with each other and the functional maintenance bridge device 46 installed on both sides of the long side of the pier between the girder 11 and the bridge 12 is a functional retaining device connecting rod 44 to the anchorage ( 17) to be connected and fixed to each other using a support bracket 42 to be installed on top.

The functional maintenance bridge device 46 is installed between the girder and the piers to be installed separately from the bridge device installed in the lower portion of the existing girder.

Figure 4 is a view showing in detail the section H portion of the functional maintenance chair installed in Figure 3, which will be described in detail in the above Figure 3 will not be described in this figure.

5 is a cross-sectional view showing a front view CC installed on both sides of the girder of the side conduction prevention device is installed on the coping of the functional maintenance device of the existing bridge of Figure 1, the pier which is both side portions of the girder 11 in the width direction of the bridge The lowering prevention key installed in the H-shaped groove 74 in the side conduction prevention part 69 in which the lowering prevention stopper 65 is installed on the upper side of the pier, which will be described in detail with reference to FIGS. 10 and 11. The support H beams 70 protruding at regular intervals in the longitudinal direction are installed on both sides of each girder, and the front upper part of the side conduction prevention part 69 is connected to the steel bar 14 using the fixing unit 17. The front lower part is connected to each other by the adjacent side conduction prevention part 69 and the side connecting plate 67, and is connected to each other by the connecting steel rod 14 using the anchorage, and the upper part of the side conduction prevention part 69 is fixed. And above The hydraulic jack 13 is installed in the upper portion of the support H beam 70 and the bridge upper structure 10 is elevated in stages. As the hydraulic jack is raised, the length of the support H beam 70 is also extended so that the girder is changed in height. Along the top of the supporting H-beam, and to prevent the bending of the side conduction prevention device and the fall prevention of the girder and the detachment of the side conduction prevention strand. The girder is prevented from falling by passing through the side conduction prevention strands 64 to be fixed to the anchorage of the side conduction prevention strand wire fixing bracket 63 installed at the bottom of the coping.

While installing the screw jack 19 between the support H beam 70 and the girder 11, a screw jack support 71 is installed between the screw jack and the girder, and the screw jack support 71 and the girder ( 11) When the girder 11 is lifted by the hydraulic jack 13 installed on the support bracket 42, which is the bridge upper structure lifting device 40, by installing the cushioning sliding pad 66 between the side surfaces, the girder is lifted. According to the amount, if the hydraulic jack 13 installed on the side fall prevention part 69 and the support H beam 70 is also lifted together, the support H beam is also lifted. At this time, the screw jack support 71 is installed on the side of the girder and the upper portion of the support H beam to be in close contact with the girder is also installed to reduce the friction with the girder. As described in FIG. 12, the cushioning sliding pad 66 is a plate made of a stainless plate 81 on one side thereof and a rubber pad 82 on the opposite side thereof, and the rubber pad is installed on the supporting H beam on the side of the girders. Make sure that it is attached to the screw jack support.

FIG. 6 is a cross-sectional view showing a cross-section D-D installed on the coping of both sides of the girder among the functional retaining devices of the existing bridge of FIG. 1, and will not be described in detail with reference to FIG. 5.

7 is a view showing in detail the cross-section E installed in the girders of the support bracket and the functional maintenance bridge device of the functional holding device of the existing bridge of Figure 1, Figure 8 is a cross-section F of the support bracket 42 of FIG. As shown in detail in FIGS. 1 to 3 as shown in FIG. 1 to 3 to show in more detail, once again described as a long side of the pier girder on the pier to form a width of the bridge at regular intervals on the pier to form a width of the bridge The bridge upper structure raising device 40 is installed adjacent to the coping between the girder 11 installed and the pair, and the lower portion of the bridge upper structure lifting device 40 is connected to each other with a connecting rod 14. Interconnection with connecting rods 14 using a steel rod fastening support device 43 on top of the bridge upper structure pulling device installed opposite to each other of the ping To settle down and install the function maintaining bridge device 46 directly under the girder 11, install the H-beam 49 for the hike for evenly lifting in the lower part, install the hydraulic jack, and support the hydraulic jack in the lower part thereof. H-shaped beam (49) installed on top of the hydraulic jack (13) while fixing the H-shaped beam (16) to be installed on the base (41) of the support bracket (42), which is the bridge upper structure lifting device (40). And the amount of girder that should be raised step by step by connecting the H-beam fixed and the lifting amount measuring steel bar 50 for the lifting using the H-beam 16 and the nut 18 installed below the hydraulic jack 13. When fixed by a nut and then lifted by a hydraulic jack, the H-beam for lifting is lifted, and the H-beam for lifting is raised by fixing the H-beam for lifting and the fixed amount of measurement bar at regular intervals with a nut. Once blocked by the nut The amount to be seungsang will act so that the crystals.

The support brackets 42 of the function maintaining device 30 of the existing bridge of the upper structure lifting device 40 of the bridge is installed on the lower side of the girder 11 in pairs on both sides of the long sides of the bridges, and the lower portions thereof are connecting steel bars. (14) connected to each other, the steel bar fastening support device 43 formed on top of the support bracket and the steel bar fastening support device 43 and the connecting steel bar 14 of the upper portion of the support bracket 42 installed on the opposite side of the piers A fixed force is applied to the hydraulic jack 13 installed on the support bracket 42 to prevent the bridge upper structure 10 from being separated when the lift.

In order to elevate the height of the girder while raising the girder 11 step by step by installing a function maintaining the bridge device 46 between the girder and the upper part of the pier in the functional maintenance bridge device 46 The lower part of the lower reinforcing part 48 is installed in the lower reinforcing part 48 so that the extended side reinforcing part 45 is closely attached to both sides of the long side of the pier between the girders and the pier while preventing the side reinforcing part 45 from being separated. The installed functional maintenance device 46 is connected to each other by using the fixing unit 17 to the functional maintenance device connecting rod 44, but to be installed on the upper portion of the support bracket 42, but the lower reinforcement portion 48 and The fixing unit 17 and the lifting H-beam 70 for fixing the functional retaining device connecting steel rod 44 are attached to each other so as to be temporarily lifted when being lifted by the hydraulic jack 13.

9 is a view showing in detail the installation cross-section G of the side fall prevention device of the function maintaining device of the existing bridge of FIG. 1, the side conduction prevention device 60 is installed on both sides of the bridge which is a short side of the bridge, but the long side of the bridge It is installed on the bridge upper structure lifting device 40 and the side conduction prevention unit 69 and fixed to each other and installed adjacent to the side conduction prevention device 60, and then supported H beam of the side conduction prevention device 60 A side of the support H beam 70 and the girder 11 is provided by installing a screw jack support 71 between the upper portion of the 70 and the side of the girder 11 and a screw jack 19 therebetween. The upper structure 10 of the bridge is prevented from falling by close contact with each other, and is not shown in the drawing but is prevented from being separated in the groove 61 formed at the upper end of the support H beam 70 installed on both sides of the bridge. Coping after installing key 62 The side conduction prevention strand wire fixing bracket 63 is installed on both sides of the side where the side conduction prevention apparatus 60 is installed and the side conduction prevention strand wire 64 is installed on the one side where the part and the pier pillar meet each other. After fixing to the strand fixing bracket 63, one side end of the side conduction prevention strand 64 is mounted on one side while being mounted between the groove 61 and the release preventing key 62 of the side fall prevention apparatus 60 installed on the opposite side. The groove 61 of the side conduction prevention strand wire fixing bracket 63 and the side conduction prevention apparatus 60 installed on the other side are fixed and fixed to the side conduction prevention strand wire fixing bracket 63 installed on the other side, and the separation prevention key 62 The side conduction prevention strands (64) between the (1) end of the side conduction prevention strands (64) is fixed to the other side conduction prevention strands fixing bracket (63) fixed to the side conduction room Lecture line 64 is installed so as to cross each other in the coping portion and then installed on the short side of the pier, both sides of the girder in the width direction of the bridge as a fall prevention stopper on the upper side on the short side of the pier to be described in detail in FIGS. On both sides of each girder, support H-beams 70 installed in the H-shaped grooves 74 in the side conduction prevention portions 69 provided with the projections 65 protrude at regular intervals in the longitudinal direction. And installing the hydraulic jack 13 on the upper side of the side fall prevention section 69 and the upper portion of the supporting H beam 70, and the bridge upper structure 10 is elevated in stages, and the hydraulic jack is raised to support the H beam. At the same time, the length of 70 is also extended so as to rise according to the height change of the girder, and the screw jack support 71 is installed between the supporting H beam and the girder, and the screw jack 19 is installed therebetween. Jack support A girder 11 is provided between the 71 and the side of the girder 11 so that the girder 11 is lifted by a hydraulic jack installed on the support bracket 42 which is the bridge upper structure lifting device 40. The hydraulic jacks installed on the side fall prevention part 69 and the support H beam 70 are also lifted according to the amount of lifting. When the support H beam is also lifted, it is installed on the side of the girder and the upper part of the support H beam. Screw jack support 71 installed in close contact with (11) is also to reduce the friction with the girder 11 when lifting.

Figure 10a, b is a view showing the side conduction prevention portion of the side conduction prevention device of Figure 9, Figure a is a steel tube having a rectangular body 73 is a side conduction prevention is formed in the body of the H-shaped groove 74 Part 69, Figure b is a view showing the anti-fall stopper 65 installed above the body 73 of Figure a.

FIG. 11 is a view showing in detail the fall preventing key and the fall prevention stopper of the side conduction prevention device of FIG. 9, showing the fall prevention stopper mentioned in FIG. 10 in detail, and having a constant distance in the longitudinal direction of the supporting H beam 70. The anti-falling stopper (68) is installed to protrude and the anti-falling stopper (65) installed on the upper portion of the body (73) has a long hole (79) formed on both side plates of the box (77), and protrusions (80) on both sides. Is formed and the support plate 78 is installed to be inserted into the long hole 79, the spring 76 is installed on one side of the support plate 78 in the box and the lowering so that the protruding key 75 is installed on the other side of the support plate. As the prevention stopper 65, the protruding key 75 is installed in the vicinity of the H-shaped groove 74 so that the protruding key 75 protrudes into the H-shaped groove and the supporting H beam provided in the H-shaped groove 74 ( 70, the lowering prevention key 68 protruding from the side conduction prevention device The lowering prevention key 68 is caught by the protruding key 75 protruding from the lowering stopper 65 when moving up and down by the hydraulic jack installed in the 60, and the movement is stopped. The protruding key 75 is supported by the elasticity of the installed spring 76 or compressed by the lowering prevention key 68 to enter the box 77 and then protrude again. The long holes 79 formed on both sides of the box are provided. ) Serves as a guide so that the protrusions 80 provided on both sides of the support plate 78 can move by the pressure of the spring 76 in the long hole 79.

FIG. 12 is a view illustrating a buffering sliding pad of the side conduction prevention device of FIG. 6, wherein one side is made of a stainless plate 81 and the other side is made of a rubber pad 82. Attach to the screw jack support on the beam.

FIG. 13 is a view illustrating a process of pulling up a girder step by step while preventing a step by using a function maintaining device of an existing bridge of the present invention, and FIG. 14 is a view showing the cross-sectional view N of FIG. 13 in detail. After installing the support brackets 42 of the function retaining device 30 of the existing bridge, which is the bridge upper structure lifting device 40, on each of the pier, the method of elevating the girder 11 installed on the pier without traffic control. An example of various ways of raising the girder to raise the height of the girder.

For example, in the case of short span, the height of the girder is raised by stepping up the girder step by step using the hydraulic jack installed in the support bracket 42 installed in the piers.

As another example, in the case of the continuous span, the girder installed on the pier is divided into sections A, B, and C shown in the above figure to step up the girder ascending step by step A, B, and C. Either C, B, A, or B, A, C or B, C, or A, select the order according to the situation. Lift the girder to extend the geometry or passageway of the bridge. At this time, the upper part of the girder forming a boundary with each section, as shown in Figure 14 step connection between the girder connecting the left and right step preventing plate (151, 152) of the step preventing plate connecting portion 153 made of a hinge inserted into the steel bar 111. In order to prevent the step is generated when stepping up the girder 11 by installing the plate 150 so as not to interfere with traffic communication, the step preventing plate connecting portion 153 hinged to the upper part of the girder installed on both sides The left and right step preventing plate (151, 152) is installed in each girder to prevent the step is generated flexibly by the hinge when the girder is elevated.

The prefabricated connection bridge 90 described in FIG. 15 is installed at the portion where the bridge and the road are connected while the girder is raised in the above order so that the prefabricated connection bridge 90 can also maintain a constant slope as the girder is elevated. Allow traffic and passers-by on the bridge to pass without any inconvenience.

At this time, by connecting one hydraulic pump to all the hydraulic jacks installed in the functional retaining device and the prefabricated connection bridge of the existing bridge step by step to simultaneously raise the girder and the prefabricated connection bridge of the bridge upper structure and installed in the functional maintenance device of the existing bridge Each hydraulic pump is installed in the hydraulic jack and the hydraulic jack installed in the prefabricated bridge bridge to lift the girder by using the hydraulic jack installed in the functional retaining device of the existing bridge, and then maintain the slope of the prefabricated bridge bridge by using the hydraulic jack installed in the prefabricated bridge bridge. Ascending method is to select the lifting method according to the site situation.

FIG. 15 is a view illustrating a prefabricated connecting bridge connected to an existing bridge in an uncontrolled lifting system of the present invention by a predetermined inclination on a road surface of a bridge of an upper structure of a bridge and a road surface of a road installed on the ground. It is about the prefabricated connection bridge 90 is connected by a plurality of hinge connecting portion 94 installed to be connected to each other.

The prefabricated connecting bridge 90 connected in this way is provided with a hydraulic jack so that the prefabricated connecting bridge connected to the road surface of the bridge and the road surface of the ground can maintain a constant slope while elevating the girder according to the lifting method of the girder mentioned in FIG. 13. Use it to raise it so as not to cause inconvenience to the operation and traffic of the vehicle.

As the entrance entrance bridge 92 which is installed to connect the road surface of the road and the road surface of the ground to have a predetermined inclined portion 93, it passes naturally to the prefabricated connection bridge 90 connected to the unit connection bridge 91. And a plurality of unit connection bridges 91 connected to each other by a hinged connection portion 94 in the middle of the entrance and exit bridge 92 installed at both sides, and the hydraulic jack and the support portion at the lower portion of the connection portion. By adjusting the height of the support and 98 and the cross-linking support 105 made of a change in the height of the girder 11 by adjusting the height of the prefabricated connecting bridge 90 by the hydraulic jack 13 to a constant slope To maintain.

The prefabricated connection bridge is naturally connected on the road surface of the bridge or road by hinge-connecting a triangular entrance and exit angle adjusting connecting plate 99 to the front surface of the entrance and exit bridge 92, that is, the portion which is in contact with the road surface of the bridge and the road surface of the road. It is a connecting plate to eliminate the step that can enter the 90).

FIG. 16 is a detailed view of the cross-section H of FIG. 15, which shows the unit connection bridge 91 in detail, and installs the main beams 95 at regular intervals, and then interconnects the main beams 95 with cross beams 101. The secondary longitudinal beam 100 and the horizontal beam 97 are installed on the upper side, and the upper iron plate 96 is welded on the upper part thereof to fabricate a unit perforated plate for use in the passage, and then the ends of the secondary longitudinal beam 100 on both sides thereof. The angle adjusting part 102 is attached to the lower part and the upper part of the height adjusting and supporting part 98 or the crosslinking support 105 is inserted into the angle adjusting part 102 so that the height adjusting and supporting part or crosslinking is made when the inclination is made. This is to prevent the support from being separated from the unit connection bridge.

FIG. 17 is a view showing the cross-section I of the connecting portion of FIG. 15 in detail, in which the connecting portions 94 connecting the unit connecting bridges 91 to each other are hinged so that the horizontal beams 97 at both ends of the unit connecting bridges are hinged. ) And the auxiliary bell beam 100 and the connecting portion 94 formed of an upper steel plate 96 thereon to be connected to each other by a hinge, and connected to the bottom of the auxiliary bell beam 100 of each unit connection bridge by a connecting plate 107 After installing the angle adjuster 102 at the lower portion of each auxiliary beam 100, the height adjustment and the support 98 is installed, the hydraulic jack 13 and the support 106 is installed, the prefabricated connection bridge 90 is a constant slope To maintain.

The hydraulic jack 13 adjusts the height so as to vary the elevation of the prefabricated connecting bridge 90 to maintain a constant inclination.

FIG. 18 is a detailed view showing a cross-section J of the angle adjustment connecting portion of FIG. 15, wherein one side end of the entrance and exit bridge 92 installed at both sides of the road surface of the bridge and the road and the prefabricated connection bridge maintains a constant inclination to provide smooth passage. It is installed to remove the step so that the entrance angle adjustment connecting plate 99 is connected to the end portion of the entrance entrance bridge bridge 92 having a constant inclined portion 93 by the connection portion 94.

FIG. 19 is a view showing that the prefabricated bridge bridge is connected to the road surface of the raised bridge while maintaining a constant angle at the same time as the existing bridge is raised by connecting and installing the prefabricated bridge bridge of FIG. 15, FIG. 15. In the prefabricated bridge bridge (90) installed at a constant length on the road surface of the bridge and the road in order to eliminate the step as the bridge upper structure 10 rises to a constant height bridge unit entry bridge (91) and entry and exit bridge (92) ) By the hydraulic jack 13 installed in the height adjustment and the support 98 and the bridge support 105 installed in the lower portion of each connection 94 of the prefabricated connection bridge 90 formed by connecting the hinge connection 94, respectively. According to the height of the girder 11 is raised to have a ramp to maintain a constant slope.

FIG. 20 is a detailed view illustrating a cross-section K in which the height adjustment and the supporting part of FIG. 19 are installed, wherein the unit connection bridge 91 and the entry / exit bridge 92 are installed under the connection part 94 connected to each other. The bridge portion 94 forms a hinge 94 at the top of the bridge and the entry and exit bridge, and is connected to each other by the connection plate 107 at the bottom thereof, and then a pipe or screw jack is installed at the bottom of each unit connection bridge and entry bridge. While installing the height adjustment and the support 98 consisting of the support 106 is made so that the junction 108 described in Figure 21 is formed.

21 is a view showing in detail the cross-section L of the junction where the height adjustment and the support and the unit connection cross-linking or entry and exit bridge bottom of FIG. 20 meets in detail, the unit jack bridge 91 and the entry and exit bridge 92, the hydraulic jack Height adjustment and support portion consisting of a joint portion that attaches the separation prevention groove 109 and formed the angle adjusting portion 102 to be inserted into the hydraulic jack release prevention groove 109 on top of the hydraulic jack 13 installed on the support 106 ( 98) to prevent the separation when the hydraulic jack is raised so that the prefabricated connection bridge 90 can achieve a constant inclination and to achieve a flexible ramp.

FIG. 22 is a view showing a hinge of the connecting part of FIG. 19, which is a hinge connecting part 94 formed on an upper portion of the unit connection bridge, and is installed on a door frame by installing a connecting part connecting each iron plate by a hinge. A hinge is formed in the form of a connecting portion of the steel plate 110, the connecting portion 94 is formed on the side of the cylinder, and then the steel rod 111 is inserted into the cylinder. These hinge connections 94 are to be folded only on one side.

FIG. 23 is a view showing in detail a cross section MM of the cross-linking support supporting the unit-linked bridge of FIG. 19. The unit is provided at the lower portion of each unit-linked bridge in the connection portion 94 connected to each other by the unit-linked bridge 91. The second support 118 is formed by forming the angle adjusting unit 102 at both ends of the connecting bridge, inserting the upper portion of the hydraulic jack 13, and connecting the support 106 to the lower portion of the hydraulic jack, and unit connecting bridge 91 H-beam 113 is installed on both sides of the pedestal 117 and a pair of first supports 114 having a plurality of steel rod mounting brackets 112 installed thereon at regular intervals. The main beam 95 of the unit connection bridge 91 and the unit connecting bridge (91) by fixing the rod to the steel rod mounting bracket 112 of the support 114 to secure the first support to each other and to install the cross-linked horizontal beam 119 to the steel rod Cross-linking support horizontal beam 119 rubber pads (1) 15) is installed and interconnected with the connecting bolt 116, and then fix the steel bar in the fixing unit 17 installed in the steel rod mounting bracket (112).

This installation is installed in the unit connection bridge 91 is connected to each other, when the unit connection bridge 91 is raised by the hydraulic jack 13 installed on the second support 118 connecting bolt 116 to the main beam (95). When the cross-linked support horizontal beam 119 connected by) rises as the steel rods connected between the adjacent first support 114 are installed, and then the cross-linked support horizontal beam 119 is mounted thereon and the steel rods are mounted thereon. In order to settle in the anchorage installed in the mounting bracket to raise the cross-sectional support horizontal beam as the steel rods while being raised step by step.

FIG. 24 is a detailed view of the first support of FIG. 23, in which the steel rod mounting brackets 112 are provided at regular intervals in the longitudinal direction of the H-beam 113, and the fixing unit 17 is mounted on the steel brackets. The unit connection bridge is installed by installing the steel bar 111 in the steel rod mounting bracket of the first support adjacent to the installation and then settled, and the cross-linking support horizontal beam 119 is mounted on the steel rod installed on the steel rod mounting bracket 112. As (91) raises, raise the steel bar and allow it to be mounted on it.

FIG. 25 is a detailed view of the installation state of the first support of FIG. 23, which is installed at both sides of the unit connection bridge 91 and not at the bottom thereof, and is installed in pairs adjacent to the pedestal 117. Cross-linking support horizontal beam 119 interconnected by the main beam 95 and the connecting bolt 116 of the unit connection bridge 91 to the first support 114, the steel rod mounting bracket 112 is installed at regular intervals 113 It is connected to the steel rod mounting bracket 112 of the first support installed adjacent to be mounted on the mounted steel rods.

FIG. 26 is a view showing that the first support for both of the amount of adjustment is installed, which is another embodiment of the first support of FIG. 23. The unit connection bridge is another embodiment of the first support 114 illustrated in FIG. 23. The main beam 95 of the 91 and the rubber pad 115 between the cross-linking support horizontal beam 119 is connected to each other and screwed on the pedestal 117 installed in pairs adjacent to both sides of the unit connection bridge (91) Install the steel pipe 122 by installing the jack 19 and connecting it, but install the steel pipe connection bracket 121 and the hydraulic jack support 125 on the steel rod 122 so that the connection can be used when necessary. Then install the hydraulic jack 13 thereon and install the crosslinking support horizontal beam 119 thereon, and then the crosslinking support horizontal beam 119 and the hydraulic jack support beam 125 are interconnected using the steel bar 111 and the Cross-linking support horizontal beam (119) and hydraulic jack support (125) and The fixed amount 120 is installed by the fixing nut 120 in a portion where the rod 111 penetrates each other, and the pulling amount adjusting combined first having the fixed amount measuring nut 124 is provided at a lower distance from the lower part of the steel bar without being separated. Install the support 123.

The steel rod is threaded throughout to facilitate insertion of the screw.

Inserting the lifting amount measuring nut 124 at a lower distance from the steel bar 111 is the cross-linking support horizontal beam 119 is connected to the unit connection bridge 91 is unit by the hydraulic jack 13 When the cross-linking bridge is raised, the crosslinking support horizontal beam 119 is automatically raised. At this time, the lifting amount of the hydraulic jack is adjusted so that the lifting amount of the hydraulic jack is adjusted by the lifting amount measuring nut 124 installed at a predetermined distance from the lower part of the steel bar. When the unit connection cross-linking of the lifting amount measuring nut installed at a predetermined interval in the lower part of the steel rod rises, the cross-linking support horizontal beam 119 connected to it also rises, so that the steel bar 111 connected to the cross-linking support horizontal beam 119 also goes up. When the rod is moved upward. When moving upwards by a certain distance, the lifting amount measuring nut 124 inserted into the steel bar is caught by the hydraulic jack supporter 125 so that the steel bar 111 does not rise any more. This is the lifting amount of the hydraulic jack. In this way, if the fixed amount measuring nut 124 is fixed to the lower portion of the steel bar at a predetermined distance by the amount of the hydraulic jack, the amount of pulling can be adjusted.

In addition, the screw jack 19 is to be able to adjust the height by using the screw jack 19 when extending longer than the length of the steel pipe (122).

FIG. 27 is a view illustrating a side surface of the first support for dual use amount adjustment of FIG. 26 installed in the prefabricated connecting bridge, and is provided on the side of FIG. 26 and is provided in pairs adjacent to both side portions of the unit connection bridge. 1 Install the support 123 and connect the cross-linking support horizontal beam 119 and the hydraulic jack support beam 125 connected with the unit connection bridge 91 to each other by using the steel bar 111 and move upwards, but not to be separated Prefabricated connection bridges 90 made of unit connection bridges 91 while at the same time fixing the lifting amount measuring nut 124 at the bottom of the steel bar 111 while fixing with the fixing nut 120 to adjust the amount of lifting of the hydraulic jack 13. Support).

The lifting method for raising the girder step by step using the above apparatus is as follows.

In the method of lifting the girder step by step without blocking the traffic when lifting the girder 11 for the expansion of the geometry and the passage surface of the bridge,

a) Install the support bracket 42, which is the function retaining device 30 of the existing bridge, on the long side of the bridge, and install the function retaining device 46 on the lower side of the girder between the support brackets, After installing the H-beam (49) for lifting and installing the hydraulic jack (13) in the lower part, and then mounted the H-beam (16) on the base of the support bracket 41, then connecting the upper and lower parts of the support bracket (14) Steps to secure each other with:

b) while installing the side conduction prevention device 60 on both sides of the pier, the support H beam 70 is installed in close contact with the side of the girder, and the hydraulic jack is disposed over the top of the side conduction prevention part 69 and the support H beam 70. Installing and then interconnecting and fixing adjacently installed support brackets;

c) Install the side conduction prevention strand wire fixing bracket 63 on both sides where the bottom of the coping and the column meet each other, and the upper side of the support H beam 70 and the side conduction prevention strand fixing bracket with side conduction prevention strand 64 ( 63) installing the side anti-conduction strands cross each other in a coping unit while being mounted on the coping unit;

d) installing a girder step preventing plate 150 in an upper portion between the girder 11 which is installed in succession on each other on the piers;

e) Install the prefabricated bridge bridge (90) by hinge-connecting the entrance and exit bridge 92 and the plurality of unit connection bridge 91 in the middle on the road surface of the bridge and the road to adjust the height in the lower and side of the connection portion 94 And installing a support 98 or a crosslinked support 105;

f) stepwise raising the girder according to the site situation of the bridge by using the hydraulic jack installed on the support bracket installed on the bridge piers;

g) step of elevating the prefabricated connecting bridge 90 inclined by using the hydraulic jack according to the lifting amount of the girder raised step by step to the prefabricated connecting bridge 90 connected to the road surface of the bridge and the road while gradually raising the girder;

h) step of raising the bridge upper structure (10) by placing the reinforcing bar in the lower part of the girder being stepped up and pouring concrete;

I) the support H beam 70 of the side conduction prevention device (60) installed on both sides of the girder while the girder is raised to extend the length by the hydraulic jack 13 to support the girder in close contact with the side;

j) After all the above steps are completed, all the devices such as support brackets, prefabricated bridges, etc. are to be removed and the surrounding structure of the bridge is cleared to allow the bridge to pass and the elevated structure of the bridge.

In the step f), the method of raising the girder according to the site situation of the bridge may use a method of elevating the girder 11 at a time when the bridge is a simple beam made of short spans. In the case of continuous bridges longer than the span, the girder 11 is divided into sections A, B, and C, and then in the order of section A, section B, section C, section C, section B, section A, section B, section A. Ascending in the order of section C, or in section C of section C, section A, selectively raises the girder.

In particular, in the above steps f), g), i), the hydraulic jack 13 installed in the support bracket 42, the side conduction prevention device 60, and the prefabricated connection bridge 90, which are the function retaining device 30 of the existing bridge, As a method of elevating the girder and the prefabricated connecting bridge step by step to operate the hydraulic jack at the same time by connecting one hydraulic pump to the functional retaining device 30 of the existing bridge and the hydraulic jack 13 installed in the prefabricated connecting bridge (60). Connecting each hydraulic pump to the hydraulic jack 13 installed in the functional retaining device 30 of the existing bridge bridge and the hydraulic jack installed in the prefabricated connection bridge 90 by using a method of simultaneously pulling up the girder and the prefabricated bridge bridge. By stepping up the bridge upper structure step by step using a method of separating and lifting the girder and prefabricated bridge bridge.

The present invention connects the bridge and the road surface to each other while elevating the girder by using the support bracket of the function maintaining device of the existing bridge to maintain a constant slope to use the vehicle and the passage of the pedestrian bridge It is possible to proceed with construction without installing additional bridges and roads by expanding the mold space and the means of transportation, so that the girder can be raised step by step without reducing the separate bridges and roads and the traffic of vehicles and passers-by. Therefore, it is a very economical and efficient construction method that can solve the inconvenience caused by traffic control and increase the indirect cost reduction effect such as logistics cost.

1 is a view showing the installation of the function maintaining device of the existing bridge in the coping of the traffic uncontrolled bridge lift system of the present invention.

Figure 2 is a view showing a cross-sectional view of the A-A installed in the coping of the support bracket of the functional maintenance device of the existing bridge of FIG.

Figure 3 is a view showing a cross-sectional view B-B of the girders installed in the coping function holding device of the existing function holding device of the bridge of Figure 1;

Figure 4 is a view showing in detail the section H portion is installed functional maintenance chair of Figure 3;

5 is a view showing a cross-sectional view C-C which is a front view installed on both sides of the girder in which the side conduction prevention device is installed on the coping of the functional maintenance device of the existing bridge of FIG.

6 is a cross-sectional view of the cross-section D-D installed on the coping of the ID side of the girder of the functional maintenance device of the existing bridge of FIG.

7 is a view showing in detail the cross-section E is installed on the girders of the support bracket and the functional maintenance bridge of the functional maintenance device of the existing bridge of FIG.

8 is a view showing in detail the cross-section F installed in the coping support bracket of Figure 2;

9 is a view showing in detail the installation cross-section G of the side fall prevention device of the function maintaining device of the existing bridge of FIG.

10 is a view showing a side conduction prevention unit of the side conduction prevention apparatus of FIG.

11 is a view showing in detail the falling prevention key and the falling prevention stopper of the side conduction prevention apparatus of FIG.

12 is a view showing a buffering sliding pad of the side conduction prevention device of FIG.

13 is a view showing a process of pulling up the girder step by step while preventing the step by using the function maintaining device of the existing bridge of the present invention.

14 shows a detail of section N of FIG. 13;

15 is a view showing that the prefabricated connection bridge of the traffic uncontrolled bridge lift system of the present invention connected to the existing bridge.

FIG. 16 shows a detail of section H in FIG. 13; FIG.

FIG. 17 shows a detail of section I of the connection of FIG. 13; FIG.

18 is a view showing in detail the cross-section J of the angle adjustment connection of FIG.

FIG. 19 is a view showing that the prefabricated connection bridge of FIG. 13 is connected to an existing bridge, and thus the prefabricated connection bridge is connected to the road surface of the raised bridge while maintaining a constant angle at the same time as the existing bridge is lifted to remove the step.

20 is a view showing in detail the section K, the height adjustment and the support is installed in FIG.

21 is a detailed view showing the cross-section L of the junction where the height adjustment and the support portion and the unit connection cross-linking or entry bridge cross-linked portion of FIG.

22 shows the hinge of the connecting part of FIG. 17.

FIG. 23 is a view showing the installation cross section M-M of the crosslinking support supporting the unit connection crosslinking of FIG. 17 in detail; FIG.

FIG. 24 is a detailed view from above of the first support of FIG. 21; FIG.

25 is a detailed view of the installation state of the first support of FIG. 21 viewed from the side;

FIG. 26 is a view showing that an impression amount adjusting first supporter, which is another embodiment of the first supporter of FIG. 21, is installed; FIG.

FIG. 27 is a view showing a side surface of the first lifting unit for adjusting the amount of adjustment of FIG. 24 installed in the prefabricated connecting bridge.

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

10 bridge superstructure 11: girders

12: pier or shift 13: hydraulic jack

14: connecting rod 15: coping

16: H-beam 17: anchorage

18: nut 19: screw jack

20: Uncontrolled Bridge Lift System

30: Function retaining device of the existing bridge

40: bridge upper structure lifting device 41: pedestal

42: support bracket 43: steel rod fastening support device

44: functional maintenance bridge connecting device 45: side reinforcement

46: function maintenance chair device 47: chair device

48: lower reinforcement 49: H-beam for impression

50: H-beam fixing and pulling amount measuring rod for pulling

60: side conduction prevention device 61: groove

62: separation prevention key 63: side conduction prevention strand wire fixing bracket

64: side conduction prevention strand 65: fall prevention stopper

66: cushioning sliding pad 67: side connecting plate

68: descent prevention key 69: side conduction prevention part

70: support H beam 71: screw jack support

72: connection device for preventing side conduction

73: body 74: H-shaped groove

75: protruding key 76: spring

77: box 78: support plate

79: long hole 80: protrusion

81: stainless plate 82; Rubber pad

90: prefabricated connection bridge 91: unit connection bridge

92: entrance entrance bridge 93: inclined portion

94: connecting portion 95: main beam

96: upper iron plate 97: horizontal beam

98: height adjustment and support portion 99: entrance and exit angle adjustment connecting plate

100: auxiliary longitudinal beam 101: cross beam

102: angle adjuster 103: hinge

104: lower iron plate 105: bridge support

106: support 107: connecting plate

108: junction 109; Hydraulic jack release prevention groove

150: girder step preventing plate 151; Left step stopper

152: right step preventing plate 153: step preventing plate connection

Claims (23)

In the device for lifting the upper structure of the bridge without controlling traffic when lifting the girder to enlarge the space and the communication surface of the bridge, As the long side of the bridge, the girder is installed on the bridge to form the width of the bridge, and the girder is installed between the girder and the girder installed at regular intervals laterally on the bridge. Install the function retaining device and connect the lower part and the upper part with the connecting steel rod, install the function retaining device right under the girder, install the H-beam for the impression of equality in the lower part and install the hydraulic jack under the part. Then, the H-beams are fixed to the bottom of the support bracket, which is a function retaining device of the existing bridge, which is the device for raising the upper structure of the bridge, and the side conduction prevention devices are installed on both sides of the bridge, the short side of the bridge. It is installed in close contact with the side, the function retaining device of the existing bridge installed adjacent to the side conduction prevention device After fixing and fixing each other with the support bracket, the side anti-conduction strand wire fixing bracket is installed on both sides where the upper portion of the support H beam of the side anti-conduction device and the coping lower portion and the pier pillar meet each other, and the side anti-conduction strand wire is installed on the one side. After fixing to the fall prevention strand wire fixing bracket, it is mounted on the upper side of the supporting H beam of the side fall prevention device installed on the opposite side, and one side end of the side conduction prevention strand wire is fixed to the side conduction prevention strand wire fixing bracket installed on one side and fixed and fixed to the other side. The side conduction prevention strands are installed so that the side conduction prevention strands cross each other in the coping part by mounting the conduction strands on the supporting H beam of the side conduction prevention strand fixing bracket and the side conduction prevention apparatus installed on the opposite side. Entry and exit bridges and units for smooth connection Hydraulic bridges and concrete are installed to support and lift from the prefabricated bridge bridges and the bridge bridges. As the height of the bridge increases, the prefabricated connecting bridge is inclined so that a constant slope can be formed so that it can be flexibly connected to the bridge and the road surface. It is a traffic uncontrolled bridge lift system that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the bridge is raised when the upper structure of the bridge is designed to expand the cross section. The method of claim 1, The support brackets, which are functional maintaining devices of the existing bridges, are installed in pairs on the lower sides of the girder in pairs on both sides of the long sides of the bridges, and the lower ends of the support brackets are connected to each other by connecting steel bars, and fastening steel bars formed on the upper ends of the support brackets. The steel bar fastening support device on the upper side of the supporting bracket installed on the opposite side of the supporting device and the pier is fixed with the connecting steel bar, and the H-beam for the impression is installed between the adjacent supporting brackets and the hydraulic jack is installed on the lower part. In the lower part, the H-beams mounted on the support brackets installed adjacent to each other are installed, and when the upper structure of the bridge is raised, the functional retaining device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time as the bridge is raised. A traffic control bridge lift system. The method of claim 1, The functional maintenance bridge device is a pair of support brackets are installed on the long side of the pier pier the lower part of the girder, and installed between the girder and the top of the pier, the side reinforcement portion extending from the functional maintenance bridge device to the upper side of the girder on the side of the girder The lower part of the side reinforcement part is used for the hiring of the H-beams for evenly raising, while the functional maintenance chairs installed on both sides of the long side of the piers are connected and fixed to each other using the fixing rods. It is a traffic uncontrolled bridge lift system that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time as the bridge is raised when it is inserted into the lower reinforcement part installed at the upper part. The method of claim 1, The H-beam for fixing the H-beam installed on the base of the support bracket and the lifting H-beam installed on the base of the support bracket while being installed between the adjacent support brackets in contact with the lower reinforcement portion of the girder lower And connecting bridges that can be height-adjusted at the same time as the function maintaining device and the bridge lifting when the upper structure of the bridge is characterized by being fixed to the nut while being connected to each other with the steel rod and the lifting amount measuring rod. Uncontrolled bridge lift system in combination. The method of claim 1, The side conduction prevention device is to be installed in close contact with both sides of the girder installed on the pier short side of the bridge in the width direction of the bridge by inserting the support H beam into the body of the side conduction prevention part, the upper part of the support H beam is installed in close contact with the side of the girder. And the side conduction prevention strands are fixed to the anchorages of the side conduction preventive strand wire fixing brackets installed at the upper portion of the support H beam and the coping lower portion of the piers, and then the upper portions of the front side conduction prevention portions installed at both sides of the adjacent girders are connected to the steel bars. The hydraulic jack connected to the upper part of the side fall prevention part and the upper part of the supporting H beam while connecting and fixing to the fixing part and connecting the lower part of the front part to each other with the adjacent side conduction prevention part and the side connecting plate and connecting and fixing each other with the connecting steel bar using the fixing part. Step by step to raise the bridge upper structure is also the hydraulic jack is also raised Traffic that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the bridge is raised when the bridge upper structure is raised by extending the length of the supporting H beam to support the girder from the side. Uncontrolled bridge lift system. The method according to any one of claims 1 to 5, Lifting the bridge superstructure, characterized in that a screw jack support is installed between the supporting H beam and the girder, and a screw jack is installed in the center, and a cushioning sliding pad is installed between the side of the girder and the screw jack support. A traffic uncontrolled bridge lift system that combines the function retention system of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the height of the bridge. The method of claim 6, The cushioning sliding pad has a stainless plate on one side thereof and a rubber pad on the opposite side thereof. The rubber pad is installed on the girder, and the stainless plate is attached to a screw jack support attached to the supporting H beam. The uncontrolled bridge lift system combining the function maintaining device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time when the bridge superstructure is raised. The method of claim 5, The side conduction prevention part is a steel tube having a rectangular body, the H-shaped groove is formed in the interior of the body and the anti-falling stopper is installed on the upper portion of the body, the support H-beam is provided with the anti-falling key at regular intervals The traffic uncontrolled bridge lift system that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time when the bridge is raised. The method of claim 8, The anti-falling stopper has a long hole formed on both side plates of the box and protrusions formed on both sides thereof so that a support plate inserted into the long hole is installed in the box, and a spring is installed in the box on one side of the support plate, and a protruding key is provided on the other side of the support plate. Lifting the bridge upper structure, which is characterized by protruding installation in the vicinity of the H-shaped groove through the side plate of the box, and lifting the traffic control bridge that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the bridge is raised. system. The method of claim 1, In order to prevent the occurrence of a step when the girder is lifted by the function retaining device of the existing bridge in the upper part between the girder installed vertically and horizontally on the bridge pier, the step preventing plate connection part of the hinge is interposed between the left and right sides. A traffic uncontrolled bridge lift system that combines a function maintaining device of an existing bridge and a prefabricated connection bridge that can adjust its height at the same time as the bridge is raised when the bridge upper structure is lifted. The method of claim 1, The prefabricated bridge bridge is connected to the road surface of the bridge of the upper structure of the bridge and the road surface of the road installed on the ground by a certain inclination by a certain inclination to each other by a predetermined inclination is formed so as not to generate a stepped entry bridge bridge and a plurality of unit connection bridge Is assembled by the hinge connection part, and the lower part of the connection part has a bridge support or height adjustment and support part installed. Uncontrolled bridge lift system. The method of claim 11, The bridge is connected to the front surface of the entrance entrance bridge installed on the road surface of the bridge of the upper structure of the bridge and the road surface of the bridge, that is, the road surface of the bridge and the road contact surface of the bridge by hinged connection of the triangular entry and exit angle control connecting plate. The traffic beauty combines the function maintenance device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time as the bridge is raised when the bridge upper structure is lifted, which is characterized by allowing the entrance and exit bridge to be naturally formed on the road surface. Control bridge lift system. The method of claim 11, The unit connection bridge is to install the main beams at regular intervals, and then interconnect the main beams in a horizontal beam, to install a secondary longitudinal beam and a horizontal beam thereon, and to install a unit perforated plate to be used for passage by welding the upper steel plate on the top Next, when the upper part of the bridge is raised, the angle control part is attached to the lower part of the subsidiary beams at both ends, and the traffic control system combines the function maintaining device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time as the bridge is raised. Bridge lift system. The method of claim 11, The connecting portion hinge-connects the unit connection bridge and the unit connection bridge, or the entry and exit bridge and the unit connection bridge, and hinged while attaching the upper steel plate on one side end of the entry and exit bridge or on both horizontal beams of the unit connection bridge. The bridge is connected to the lower part of the subsidiary beams at both ends by a connecting plate, and then the angle adjusting part is installed at the lower part of each subsidiary beam. A traffic uncontrolled bridge lift system that combines a functional retaining device and a bridge-type prefabricated bridge bridge with height adjustment. The method of claim 14, The angle adjusting part is characterized in that the lower end of the two ends of the unit connection bridge and the lower end of the one end of the entry and exit bridge is attached to the hydraulic jack release prevention groove and inserted into the hydraulic jack release prevention groove on the upper portion of the hydraulic jack installed on the support. The uncontrolled bridge lift system combining the function maintaining device of the existing bridge and the prefabricated connecting bridge which can adjust the height at the same time when the bridge superstructure is raised. The method according to any one of claims 11 to 14, The height adjustment and the support is installed in the lower portion of the connecting portion connecting the unit connection cross-linking and the entry and exit cross-linking to form a connecting portion with a hinge on the upper portion of the unit connection cross-linking and the entry and exit bridge, and connected to each other by a connecting plate at the bottom The angle adjusting part is installed at the lower part of each unit connection cross-link and the entrance / exit bridge, and the joint part is installed at the upper part of the hydraulic jack to be inserted into the angle adjusting part, and the support of steel pipe or screw jack is installed at the lower part of the hydraulic jack. It is a traffic uncontrolled bridge lift system that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the bridge is raised. The method according to any one of claims 11 to 14, The cross-linking support installed in the lower portion of the connection portion connecting the unit connection bridges are formed at the upper portion of the unit connection bridge by the hinge portion, the lower portion of the angle adjustment portion is installed in the lower portion of the joint portion inserted into the angle adjustment portion hydraulic jack And a second support on both sides of the lower portion of the connecting portion of the both ends of the unit connection bridge so as to support the hydraulic jack while installing a support made of pipe or screw jack on the pedestal, and on both sides of the unit connection bridge H-beams are installed in pairs adjacent to each other, and a plurality of steel rod support brackets are installed at regular intervals in the longitudinal direction of the H-beams, and the first rods are installed adjacent to each other. The main beam of the unit connection bridge and the When lifting the upper structure of the bridge, which is characterized in that the bridge beams are installed with rubber pads, interconnected with connecting bolts, and the steel rods are settled in the anchorages installed in the steel rod bracket, the function of the existing bridges and the height adjustment at the same time can be adjusted. Uncontrolled bridge lift system combining prefabricated bridges. The method of claim 17, The first support is such that the cross-linking support horizontal beams are interconnected with the main beam and the rubber pad of the unit connection bridge interposed therebetween, and a screw jack is installed on the pedestal installed adjacently on both sides of the unit connection bridge and connected to the steel pipe. Install the steel pipe connection bracket so that the connection can be used when the connection is needed, and install the hydraulic jack support beam on the steel rod, install the hydraulic jack on it, and install the cross-support horizontal beam on it, and support the cross-beam support beam and hydraulic jack. Connect the beams using steel bars and install the nut on the part where the bridge beam supporting beam and the hydraulic jack support beam and the steel rod penetrate each other. The upper part of the bridge characterized by being the first support for raising the fixed amount When you raise the water at the same time maintaining devices and functions of the existing bridges and bridge impressions combination of prefabricated connections bridging the height-adjustable control of the US transportation system seungsang bridges. The method of claim 5, At the upper end of the support H-beam of the side conduction prevention device, a release prevention key is installed at the outside of the groove and the groove to prevent the side conduction prevention strand from being separated when the side conduction prevention strand is installed between the groove and the departure prevention key. It is a traffic uncontrolled bridge lift system that combines the function maintaining device of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time as the bridge is raised. In the method of lifting the girder step by step without blocking the traffic when lifting the girder to expand the space and the communication surface of the bridge, a) Install the support bracket which is the function maintenance device of the existing bridge on the long side of the bridge, install the function maintenance bridge device on the lower side of the girder between the support brackets, and install the H-beam for the impression to raise equally on the lower part. After installing the hydraulic jack in the lower part, the H-beam is mounted on the base of the support bracket, and then the upper and lower parts of the support bracket are connected to each other by connecting bars. b) Install side anti-conduction devices on both sides of the piers, install the supporting H-beams close to the side of the girders, install hydraulic jacks over the side anti-conductors and the top of the supporting H-beams, and interconnect with the adjacent support brackets. Fixing; c) Install the side conduction prevention strand anchoring brackets on both sides where the lower part of the coping and the column meet each other and prevent the side conduction at the coping part while mounting the upper side of the supporting H beam and the side conduction prevention strand anchoring bracket with the side conduction resistant strand. Installing the strands to cross each other; d) installing a girder step preventing plate at an upper portion between the girder which is installed next to each other on the piers; e) installing a prefabricated connection bridge by hinge-connecting a plurality of unit connection bridges with each other in the middle of the entrance and exit bridge and the road surface of the bridge and the road, and installing height adjustment and support or bridge support on the lower and side surfaces of the connection; f) stepwise raising the girder according to the site situation of the bridge by using the hydraulic jack installed on the support bracket installed on the bridge piers; g) stepping up the prefabricated connecting bridge inclinedly using a hydraulic jack according to the lifting amount of the girder step by step in the prefabricated connecting bridge installed on the bridge and road surface while gradually raising the girder; h) stepwise raising the bridge upper structure by placing reinforcing bars in the lower part of the girder being stepped up and pouring concrete; I) the support H beam of the side conduction prevention device installed on both sides of the girder as the girder is raised to extend the length by the hydraulic jack to support the girder in close contact with the side; j) When all of the above steps are completed, all the devices such as support brackets, prefabricated bridges, etc. are removed and the surroundings of the bridges are arranged to allow passage to the bridges. A method of lifting a bridge without blocking traffic by using a traffic uncontrolled bridge lift system that combines a function retaining device and a bridge-mounted prefabricated bridge bridge. The method of claim 20, The method of raising the girder according to the site situation of the bridge in step f) is to maintain the function of the existing bridge and the bridge when the upper structure of the bridge, which is characterized by lifting the girder at a time when the bridge is a simple beam made of short spans. A method of elevating a bridge without blocking traffic by using a traffic uncontrolled bridge lift system that combines a prefabricated connecting bridge with adjustable height. The method of claim 20, In the step f), the method of raising the girder according to the site situation of the bridge is to raise the girder in the order of section A, section B, section C and section C when the bridge is a continuous bridge having two or more spans. Bridge superstructures characterized in that ascending in the order of section C, section B, section A, section B, section A, section C, section B, section C, section A and selectively lifting girders A method of lifting a bridge without blocking traffic by using a traffic uncontrolled bridge lifting system that combines the function of the existing bridge and the prefabricated connecting bridge that can adjust the height at the same time. The method of claim 20, Step f), g), i) step by step to elevate the girder and the prefabricated connection bridge by operating the hydraulic jacks installed in the functional retaining device and the prefabricated bridge bridge in step f), g), i) One hydraulic pump is connected to the hydraulic jack installed in the system to operate the hydraulic jack at the same time so that the girder and the prefabricated bridge can be pulled up at the same time or the hydraulic jack installed in the functional retaining device of the existing bridge and the hydraulic jack installed in the prefabricated bridge. It is possible to adjust the height at the same time as raising the function of the existing bridge and raising the bridge at the time of raising the bridge upper structure by selectively using the method of lifting the girder and the prefabricated connecting bridge by connecting the pump. A traffic lift control system that combines prefabricated bridges How to seungsang bridges without blocking traffic.