KR100547486B1 - Apparatus for introducing counterdirectional transformed load operating to the upper structure of bridge in opposite direction to gravity direction and counterdirectional transformed load introduction method using the apparatus - Google Patents

Abstract

     The present invention is a temporary bridge temporarily installed for the maintenance and bridge construction of new bridges such as prestressed concrete beam bridges, preflex beam bridges, steel box girder bridges, steel plate girder bridges, steel bridges, etc. It can be applied to the reversing load introduction device by using the lever system made of steel, and installed in the bridge girder, and the upward force is introduced to the lifting device such as the hydraulic jack, and the compressive force is introduced to the bridge girder while the elastic point functions. The present invention relates to a reverse strain load introduction device using a lever system made of steel and a reverse strain load introduction method using the same to introduce a reverse strain load into a bridge superstructure to simultaneously perform the same.

     A support shaft formed of a pair of supports is formed on the pedestal, and a portion in which one end of the fixed lever and the elastic lever is integrally formed on the support shaft is formed by hinged pins on the support shaft. Install a lever but install a lifting device between the actuating lever and the pedestal on one side, forming a hole at a certain position of the other end of the fixed lever, and drills a hole on the elastic lever installed at a certain distance below the fixed lever, A connecting portion is formed at the end of the working lever, and the connecting portion is positioned directly under the hole drilled on the elastic lever, and the working pin inserted into the hole formed in the fixing lever and the elastic lever has a connection part formed at the working lever. It is inserted and installed, the elastic lever formed to extend a certain distance from the elastic lever is supported from the bottom of the bridge girder Making the reverse deformation load introduction device is installed to transfer the compressive force plate is to transfer the compression forces, and

     When the produced reverse deformation load introduction device is installed on the bridge girder and the upward compression force is introduced to the actuating lever by the lifting device, the elastic lever acts upward and is upward on the bridge girder by the compression force transmission plate installed on the elastic lever. The compressive force is to be introduced.

Description

      Apparatus for introducing counterdirectional transformed load using the lever system for introducing the reverse strain load acting in the direction opposite to the gravity direction to the upper structure of the bridge in opposite direction to gravity direction and counterdirectional transformed load introduction method using the apparatus}             

1 is a view showing a reverse strain load introduction device of the present invention.

Figure 2 is a view showing the front of the reverse strain load introduction device of FIG.

3 is an exploded view showing the disassembled reverse strain load introduction device of FIG.

Figure 4 is a view showing in detail the support shaft of the reverse strain load introduction device of the present invention.

      Figures 5a, b, c, d is a view showing several embodiments of the action pin in the reverse strain load introduction device of the present invention.

     Figure 6 is a view showing several embodiments of the compressive force transmission plate of the reverse strain load introduction device of the present invention.

     Figure 7a, b is a view showing several embodiments of the support device of the reverse strain load introduction device of the present invention.

     8 is a view showing the installation of the reverse strain load introduction device of the present invention in the lower portion of the bridge girder of the bridge.

     9 is a front view showing the installation of the reverse strain load introduction device of the present invention in the lower portion of the bridge girder of the bridge.

     10 is a view showing that the reverse strain load introduction device of the present invention is installed on the partition wall provided to connect the unit steel girders of the steel bridge to each other.

     11 is a view showing that the reverse strain load introduction device of the present invention is installed on the side of the bridge girders.

     12 is a view showing another embodiment of the reverse strain load introduction device of the present invention.

     13 is a view showing that the reverse strain load introduction device of the present invention is installed on the bridge girder as another example of the bridge.

     14 is a view showing another embodiment of the reverse strain load introduction device applied in FIG.

     15 is a view showing a cross-sectional moment stress diagram after introducing a compressive force by installing the reverse strain load introduction device of the present invention in the bridge girders of a simple beam.

     Fig. 16 is a diagram showing the cross-sectional moment stress diagram after the reverse strain load introduction device of the present invention is installed in a bridge girder of a continuous bridge to introduce a compressive force.

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

       1 ... Simple beam bridge 2 ... Continuous bridge

      10 ... bridge girder 11 ... bridge or shift

      12 ... Stool device 13 ... Unit steel girder

      14 ... abdomen 15 ... branch

      20 ... Inverse strain load introduction device 21 ... Fixed lever

      22. Elastic lever 23 ... Working lever

      24 ... working pin 25 ... support

      26 ... guide plate 27 ... compression force transmission plate

      28. Support point 29 ... Hole

      30 ... riser 31 ... welded or bolted

      32 ... round body 33 ... square body

      34 .... H-shaped body 35 ... extension

      36 ... "S" rising 37 ... pad

      38 ... projection 39 ... flat

      40 ... support shaft 41 ... support

      42 ... pedestal 43 ... wire

      44 ... hinge 45 ... bulkhead

      46 ... support shaft

      50 ... Connection 51 ... Groove

      52 ... protrusion 53 ... retaining pin

      60 ... screw jack

       The present invention is a temporary bridge temporarily installed for the maintenance and bridge construction of new bridges such as prestressed concrete beam bridges, preflex beam bridges, steel box girder bridges, steel plate girder bridges, steel bridges, etc. As applicable to, the various girders collectively referred to herein as bridge girders.

      The reverse strain load introduction device is manufactured by using the lever system made of steel and installed on the bridge girder, and the upward compression force is applied to the lifting device such as the hydraulic jack to introduce the compression force to the bridge girder, thereby allowing the multiple elastic points to be installed on the bridge girder A method for introducing a compressive force under a reverse deformation load into a bridge girder by installing a reverse strain load introduction device manufactured using an elastic steel material in a bridge girder for introducing a compressive force to a bridge superstructure to simultaneously perform a function. will be.

     A support shaft formed of a pair of supports is formed on a pedestal made of steel, and a welded or bolted joint integrally formed with one end of a fixed lever and an elastic lever and the support shaft are fixed to an upper portion of the support, One side of the actuating lever is installed on the pedestal, and an elevating device is installed between the actuating lever of the installed side and the pedestal, a hole is formed at a predetermined position of the other end of the fixed lever, and an elastic lever is installed at a predetermined distance away from the bottom thereof. A hole is formed on the connector, and a connection part is formed at an end of the actuating lever, and the connection part is installed in contact with a lower side of the hole punched on the elastic lever, and is inserted and fixed into the hole formed in the fixing lever and the elastic lever. The pin is inserted into the connection portion formed in the actuating lever, and extends a certain distance from the elastic lever Generated resilient lever and the support and making the compressive force is delivered to compression load transfer plate by a reverse transformation to install the introduction device at the bottom of the bridge girder,

     When the produced reverse deformation load introduction device is installed on the bridge girder and the upward compression force is introduced to the actuating lever by the lifting device, the elastic lever acts upward and is upward on the bridge girder by the compression force transmission plate installed on the elastic lever. By installing a plurality of elastic transmission plates on the elastic lever in addition to the support points uniformly installed on the bridge structure as the compression force of the pressure is introduced, the installed force is applied by applying upward force in the opposite direction to the design load in the direction opposite to the gravity direction. By installing a plurality of elastic support points in addition to the support points, the bridge length of the bridge is extended to reduce the cross-sectional force generated in the upper structure of the bridge to construct and repair the bridge more effectively and economically.

      An object of the present invention is to reduce the cross-sectional force generated in the upper structure of the bridges and temporary temporary bridges newly established, and the moment and shear force, and also to increase the load capacity in the case of the bridge is inevitable to complete the planned endurance of the bridge The bridge has a compressive force introduction device that extends the endurance life of the bridge and increases the support load of the bridge by reinforcing the compressive force on the bridge that needs to increase the support load due to the possibility of cracking the upper structure of the bridge due to the excess of the support load The present invention relates to a method of repairing and strengthening the durability of bridges and durability of bridges by introducing upward compressive force to bridges by installing them on bridge girders.

      The method of introducing the compressive force to the bridge by using the reverse strain load introduction device is installed in the bridge girders, the compressive force transmission plate which is an elastic point that causes the reverse load on the upper structure of the bridge can be introduced as necessary and always the reverse direction Deformation load introduction device, which reduces the cross-sectional force generated in the upper structure of the bridge, improves durability, reduces the mold height of the bridge girder, and reduces the amount of steel used as expensive materials. Effective reinforcement device is to extend and reinforce bridge's durability.

       Conventionally, the compressive force increasing method for the upper bridge structure and the load capacity increasing method for the aging bridge is as follows.

       1. Among the conventional techniques, the most commonly used methods for reducing the cross-sectional force of a structure for newly established bridges are most frequently used in bridge types such as PS beam bridge, PS box girder bridge, plate girder bridge, and composite box girder bridge. There is a classical method of introducing an upward compressive force to the girder by introducing a tension force to the strand by placing the strand on the abdomen or lower abdomen side of the girder to be used, the steel beam after producing a certain amount of rise to the steel There is a preflex beam which loads a concentrated load on a part of the beam and removes the concentrated load after the concrete finishes curing.

        In addition, in more detail with respect to the prior art filed recently, as of March 21, 2001 as a patent 2001-0014732 "Steel beam with prestress applied within the web width of the steel beam using H-beam or eye beam and its manufacture The invention filed under the name of "Method" provides a compressive force to the steel beam by forming a predetermined space in the abdomen of the H beam or I beam, and then fixing the steel wires diagonally to these spaces, and then introducing a tensile force to the steel beams. The invention filed under the name "External prestressing steel beam and its fabrication method and bridge construction method by the steel beam" filed on May 14, 2002 with the patent 2002-0026590, the outside of the steel beam , After installing and fixing the steel wires on the abdomen or the lower flange, the tensile force is introduced to these steel wires to introduce the upward compressive force to the steel beam, Patent 2003-002 The invention filed under the name "Prestress Girder Using Continuous Tension Material", filed April 24, 2003, filed with No. 6172. Saddles or dividers at the midpoint of the girder to allow the steel wire to act upward while installing steel wires on both sides of the girder. After the installation of the heaters, the steel wires are placed on these devices, and the tensile force is applied to these wires, and then the steel wires are fixed and fixed so that upward compressive force can be introduced into the girder.

      2. As a conventional technology that can be applied to bridges temporarily constructed for the construction of new bridges, the temporary registration of the name of "prefabricated tension steel beams" as patent registration 10-0316518 dated November 21, 2001 is temporary. The steel wire is installed on the steel bridge, and the tensile force is introduced into the steel wire to compress the steel beam.

       The above-mentioned conventional techniques are all installed in the bridge superstructure consisting of beams or steel box girders made of concrete and steel, and the anchorage and steel are installed to install the anchorage to fix them to the bridge superstructure. By introducing a strong tensile force to the steel wires and strands at both ends, it is a technology of the concept that the upper structure of the bridge can resist the external force acting on the bridge by causing an upward force on the bridge superstructure.

      The prior art as described above is fixed to the strands and steels installed in the upper structure of the bridge to the anchorage to introduce a tensile force to the strands and steel to introduce an upward force to the bridge upper structure to reach the originally designed design load on the bridge to the bridge Its purpose is to endure the applied load, but when the strand and steel are actually installed in order to actually apply upward force to the upper structure of the bridge, the ratio of the length and height of the bridge is very small. If the parabolic shape is installed on the side of the structure and settled in the anchorage, the arrangement angle of the steel wire and the steel that is substantially parabolic is very small, and even if a tension force is introduced, only a very small upward force is introduced into the steel wire and the steel. As a result, a very small amount of upward force introduced into the strand and the steel may result in insufficient resistance to the load acting on the bridge.

       On the other hand, while a very small amount of upward force is introduced, the strands and steels introduce a very high compressive force, and the stranded wires installed in the bridge superstructure to introduce the compressive forces introduced in the strands and steels into the bridge superstructure. And as a result, the steel is settled in the anchorage, and as a result, unnecessary compressive force, which is very strong in the anchorage, but should not be introduced into the bridge, acts as an excessive stress on the upper structure of the bridge, and brittle fracture is generated by a small external force. You always have a problem.

     Another problem is that in the case of the PS beam which manufactures the girder with concrete, the reinforcing bar is formed by installing the reinforcing bars installed to form the beam, the PS steels disposed therein and the fixing facilities necessary to introduce tension force. As the interior of the assembly becomes very narrow, the compaction of the concrete becomes very difficult due to the narrow space in the concrete placing, which makes it impossible to manufacture the beam tightly, resulting in the production of a poor beam that cannot support the designed load.

      In addition, in the process of manufacturing the PS beam, the strand and the steel is installed inside the beam is buried inside when the concrete is placed, so that the beam is produced, the unexpected load that exceeds the load designed during the initial beam production It is very difficult to introduce additional stress on the beam below the standard due to the defect in the manufacture of the concrete beam, and a considerable time has elapsed after constructing the bridge using the beam. It is very difficult to install additional device to increase the resistance ability because the loss of tension is introduced and the load bearing capacity of the beam is lowered.Therefore, there is a problem in quality control during the fabrication of the beam. There are many problems in the installation because it is very narrow in the installation space.

     In addition, steel and steel composite girders are generally thinner and more flexible than the massive concrete structures, and the upper, lower flanges and abdomen are applied when tension is introduced due to the tension between the PS steel and the fixing facility. This causes structural serious problems such as buckling of members. Moreover, this tension load causes the magnitude of the load over time to act as an impact load such as an earthquake load, so that damage to the bridge structure becomes very serious.

     As described above, the conventionally used technology is very difficult to cope with the load change of the bridge, and even when the bridge beam is manufactured, the concrete beam is not smoothed by many devices installed inside the bridge beam. It has a bad effect on the quality, and even in the case of installing a device for reinforcing load capacity to the steel beam, there has been a problem that can not effectively introduce the tension force to the steel due to the effects such as buckling of the steel beam.

The present invention is to install the reverse strain load introduction device using the steel having elastic force in order to solve the problems of the prior art as described above installed in the bridge girder and to act the upward compression force using the lifting device such as hydraulic jack elastic lever The support device installed on the compressive force transmission plate installed at the upper side acts upward to introduce the upward compressive force to the bridge girder to reduce the cross-sectional force of the bridge, thereby reducing the mold height, thereby reducing the use of expensive steel materials and thus reducing the construction cost. In this case, the plurality of elastic support points act on the bridge girders so that the bridge span length can be extended even more, and the reverse strain load introduction device is used when it is necessary to increase the load load due to the aging of the bridge later. To introduce an additional upward compression force. The duration of the light is to be extended to.

     The present invention forms a support shaft (40) consisting of a pair of supports (41) on the pedestal (42) made of steel, one side end of the fixing lever 21 and the elastic lever 22 on the support (41) And one side of the actuating lever 23 is formed on the pedestal 42 below the weld or bolt joint portion 31 and the support shaft 40 which are integrally formed thereon, and the actuating lever 23 of the installed side is installed. ) And an elevating device (30) between the pedestal (42), a hole (29) formed at a predetermined position of the other end of the fixing lever (21), and an elastic lever (22) extending at a predetermined distance from the lower portion thereof. A hole 29 is drilled on the rod, and a connecting portion 50 is formed at the end of the actuating lever 23, and the connecting portion 50 is directly below the hole 29 drilled on the elastic lever 22. Is installed in contact with, the action lever 24 is inserted into the hole 29 formed in the fixing lever 21 and the elastic lever 22 is the action lever It is inserted into the connecting portion 50 formed in the 23, the elastic lever 22 is formed to extend a predetermined distance from the elastic lever 22 to transmit the compressive force to transfer the support and compressive force from the lower portion of the bridge girder 10 The reverse deformation load introduction device 20 in which the plate 27 is installed is manufactured,

     When the produced reverse strain load introduction device 20 is installed in the bridge girders 10 and the upward compression force is introduced to the action lever 23 by the lifting device 30, the elastic lever 22 acts upward. The compression force transmission plate 27 in the span section in addition to the support point is uniformly installed in the bridge structure by introducing a compression force to the bridge girder 10 by the compression force transmission plate 27 installed on the elastic lever 22 to the elastic lever (22) By installing a plurality of elastic support points in addition to the support points in addition to the above installed by extending the span length of the bridge while reducing the cross-sectional force generated in the upper structure of the bridge to construct and repair the bridge more effectively and economically It is characterized by.

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

      1 is a view showing a reverse strain load introduction device of the present invention, a support shaft 46 consisting of a pair of supports 41 formed on a pedestal 42 made of steel, the upper portion between the support 41 After the one end of the fixed lever 21 and the elastic lever 22 is integrally welded or bolted, the welded or bolted joint 31 and the support 41 are formed to be fixed, and the pedestal 42 at the bottom thereof. One side of the actuating lever 23 is movably installed thereon, and an elevating device 30 is installed between the actuating lever 23 and the pedestal 42 of the installed side, and fixed to the other end of the fixed lever 21. A hole 29 is formed at a position, and a hole 29 is drilled on an elastic lever 22 installed diagonally downward from a lower portion thereof, and a connection part 50 is formed at the other end of the working lever 23. Is formed, but the connecting portion 50 is on the elastic lever 22 It is installed in contact with the lower side of the perforated hole 29, the action pin 24 inserted into the hole 29 formed in the fixed lever 21 and the elastic lever 22 is formed in the action lever 23 Inserted into the connecting portion 50, the end of the elastic lever 22 formed to extend a predetermined distance from the elastic lever 22 is installed to transfer the support and compressive force to the bridge girder 10 and to act as an elastic support point It is a reverse deformation load introduction device 20 made of a compressive force transmission plate (27).

      The fixing lever 21 serves to fix the device by bringing the entire reverse deformation load introduction device 20 into close contact with the bridge girder 10 in order to support an upward force for implementing an elastic point.

     The elastic lever 22 is upwardly applied to the bridge girder 10 through the compressive force transmission plate 27 installed at the end of the elastic lever 22 is transmitted to the elastic lever 22 upward compression force generated in the working lever 23. At the same time, the compressive force transmission plate 27 installed on the elastic lever 22 serves as an elastic support point, and thus, a plurality of elastic support points are formed in the bridge girder 10 to form a bridge girder. (10) is to extend or reduce the span liver effectively.

     In addition, since the compressive force transmission plate 27 serves as an elastic point and must be moved upward as a driven body when an upward force is generated, one end of the elastic lever 22 is welded to integrally operate with one end of the fixed lever 21. It is connected between the weld joint and the bolt joint, and is installed between the pair of supports 41 and the support 41 and the weld or bolt joint 31 is formed to be fixed, and at the other end by installing a compressive force transmission plate 27 The upward compressive force is transmitted to the bridge girder 10.

     At this time, the length of the elastic lever 22 extends longer than the length of the fixing lever 21 and the working lever 23 so that the compression force transmission plate 27 is installed in the extended portion, the elastic lever 22 of the The compression force transmission plate 27 is installed to be formed in plural over the entire length so that the support point for supporting the bridge girder 10 can be an elastic support point having elastic properties, and the elastic lever 22 acts. It is to be installed in the middle of the lever 23 and the fixed lever 21, the support 41 of the support shaft 40 is to be installed on the upper side and when installed in contact with the actuating lever 23 to be installed downward Eventually, it should be installed diagonally downward.

    The actuating lever 23 is a member that actively performs an upward force to implement an elastic point on the bridge girder 10, and lifts such as a screw jack or a hydraulic jack installed between the actuating lever 23 and the pedestal 42. Receiving the upward force by the device 30 serves to act the upward force on the bridge girders 10 through the elastic lever 22 and the compressive force transmission plate 27 installed on the elastic lever 22.

     The fixing lever 21, the elastic lever 22 and the working lever 23 is made of steel, but the shape can be produced using various types of steel, such as H type, L type, c type, ㅁ type. In particular, the elastic lever 22 is produced by selecting the steel having a very good elastic force, the elastic lever 22 is used to be processed into a single steel of the streamline, or that a plurality of steel is connected by welding and bolted joints using the shape steel. Can be used.

     The actuating lever 23 is generally manufactured in a wired or straight line shape, and one end of the actuating lever 23 is welded with the pedestal 42 to act as an integral structure with the pedestal 42 after acting upward by the generation of an upward force. Integrate through a joint method such as a bolt, or by placing concrete on the lower surface of the actuating lever 23 raised upward so that one side end and the pedestal 42 of the actuating lever 23 are buried in the concrete.

    The compressive force transmission plate 27 may be installed at regular intervals over the end of the elastic lever 22 or the entire length of the elastic lever 22, the shape of the bridge girders 10 in various forms, the lower portion, the side portion And an extension part which is formed in a shape that can be supported or lifted in close contact with the bridge girder 10 at an upper portion of the compressive force transmission plate 27 or extends at both sides in a body having a "c" shape. The support device 25 is installed at 35 so that the support device 25 is in close contact with the bridge girder 10 to absorb the shock generated by the upward force and the elastic action and the working load acting on the bridge superstructure. Is installed.

   The compressive force transmission plate 27 used in FIG. 1 uses a spherical steel plate, and is manufactured to support the bridge girder 10 at a central portion of the steel plate, which is a portion where the spherical steel plate is placed on the elastic lever 22. The support device 25 is provided, and the guide plate 26 is installed in the outer direction at a constant interval. The support device 25 transmits the upward force of the elastic lever 22 to the bridge girder 10 and at the same time the elastic support point, that is, the modified bridge to absorb the impact load due to the stretching action and the load acting on the bridge girder It is intended to act as a device. In addition, the guide plate 26 is installed at regular intervals on the outside of the support device 25, the support device 25 is the compression force when the support device 26 moves in close contact with the bridge girder 10 This is to prevent the departure from the outside of the transfer plate (27). A more detailed description will be given with reference to FIGS. 6 to 7.

     In addition, the actuating pin 24 for fixing the fixing lever 21, the elastic lever 22, and the actuating lever 23 is installed to allow the fixing, elasticity, and actuating levers to be moved only in the up and down direction. Lifting force is generated on the actuating lever 23 by the lifting device 30 installed on the pedestal 42 and the actuating pin 24 connected to the fixing lever 21 when the elastic lever 22 is received and acts upward. The hole formed in the one end of the fixed lever 21 and the elastic lever 22 to suppress the movement of the fixed lever 21 by the upward movement to cause the reaction force by the lifting force of the elastic lever 22 by By the working pin 24 inserted into the (29) to be inserted and fixed at a certain distance.

     However, in order to connect the actuating lever 23 and the elastic lever 22 to each other, it is inserted into and fixed in the groove 51 formed in the connecting portion 50 (described in detail in FIG. 3) formed at one end of the actuating lever 23. It is to be fixed in the groove 51 by the pin 53, it is not inserted into the hole 29, which is a method of connecting the fixing lever 21 and the elastic lever 22 in this way, but at one end of the working lever 23 Inserted into the groove 51 formed in the formed connection portion 50 to be fixed by the fixing pin 53 to act as a hinge so that the working pin 24 can be freely rotated in the groove 51, but the top and bottom It is installed in the hinge type to prevent deviation in other directions. The shape of the action pin 24 (detailed in detail in FIG. 5) is a circular, spherical and H-shaped steel to form a hole 29 or a groove 51 into which the fixing pin 53 is to be inserted in the upper and lower portions. The shape of the groove 51 formed at the lower end of the working pin 24 is manufactured in the form of a fishing needle so that a space is formed on the outer side of the working pin 24 body, so that the fixing pin 53 is inserted into the groove 51. After it is free to rotate and so on, but the groove (51) to allow the engaging portion of a certain length so as not to be separated out.

      FIG. 2 is a view showing the front side of the reverse strain load introducing apparatus of FIG. 1, having the same structure as described in FIG. 1, except that the support point 28 installed on the actuating lever 23 is generated on the actuating lever 23. It is installed so that the upward force of the same size and direction as the upward force can be transmitted to the elastic lever 22.

      3 is an exploded view showing the disassembled reverse strain load introducing device of FIG. 1, which is manufactured as described in FIGS. 1 and 2, wherein the elastic lever 22 has one compression force transmitting plate 27. A plurality of the above may be installed, and at this time, an upward force generated by the elastic lever 22 is transmitted to the bridge girder 10 and at the same time, a plurality of installed compressive force transmission plates 27 support the bridge girder 10. Elastic multi-point that acts as a point having a plurality of elastic stabilization device is installed.

      In this way, when a plurality of points of the elastic body are installed, it is generally a conventional method that one bridge device 12 is installed in the shift and the pier 11 and is currently used, which is to support the bridge girders 10 in addition to the point. As a result, uniformly spanned bridge spans will be installed. However, applying the elastic multi-point device of the present invention can support the bridge girder 10 even at a certain distance from the bridge or the pier 11 of the bridge girder 10, so that the span length of the bridge can be enlarged. In addition, by reducing the height of the bridge girder to secure the maximum space of the bridge, it is possible to reinforce the strength of the bridge.

       In addition, in order to connect the actuating lever 23 and the elastic lever 22 with each other, grooves 51 are formed at one end of the actuating lever 23, and protrusions 52 are formed at both sides of the grooves 51. The hole 29 is formed in the center of the protrusion 52 so as to form a hole 29 in the lower portion of the body 32, 33, 34 in the groove 51 of the connecting portion 50 formed in the shape of “C” as a whole. Inserting the working pin 24 having a predetermined size groove 51 is inserted into the hole 29 of the protrusion 52 and the hole 29 or the groove 51 of the acting pin 24 with a fixing pin 53. Make sure it is inserted and inserted.

The groove 51 formed in the connecting portion 50 formed at one end of the working lever 23 is not inserted into the hole 29 formed in the fixing lever 21 and the elastic lever 22. After the insertion into the fixing pin (53) to be fixed to act as a hinge so that the working pin 24 can be freely rotated in the groove (51) in order to prevent the deviation in the direction other than up and down Hinged installation.

     The shape of the action pin 24 (described in detail in Figure 5) is a steel, such as circular, spherical and H-shaped hole 29 or groove for inserting the fixing pin 53 in the lower portion of the body (32, 33, 34) To form 51, the shape of the groove 51 formed on the lower end of the action pin 24 is produced in the form of a fishing needle so that the space is formed on the outer side of the action pin 24 body to the fixed pin ( After the 53 is inserted into the groove 51, it is possible to freely rotate, etc., but the locking portion of a certain length is formed so as not to be separated out of the groove 51.

4 is a view showing in detail the support shaft of the reverse strain load introduction device of the present invention, as shown in Figure 1 is also the place where the lifting force is generated as the most important part of the reverse strain load introduction device 20.

A lifting device that is a screw jack or a hydraulic jack at a central portion where a pair of supports 41 having a predetermined length and size are installed at regular intervals on an upper portion of the pedestal 42 made of steel having a predetermined size, and a pair of supports 41 are installed. Install the 30 to manufacture the support shaft 40, install the actuation lever 23 in a movable state on the lifting device 30, the other end is in close contact with the elastic lever 22, fixed The other end of the lever 21 and the elastic lever 22 is fixed to the upper portion of the support 41 after welding or bolting is integrated.

The pedestal 42 and the actuating lever 23 pour a plurality of bridge girders 10 on the bridges and shifts 11 to pour concrete or to be embedded in concrete after completion of the upward force. , It will be installed in the longitudinal direction.

      Figure 5a, b, c, d is a view showing a number of embodiments of the action pin of the reverse strain load introduction device of the present invention, the shape of the action pin 24 is the shape of the body, such as circular, spherical and H-shaped body ( 32, 33, 34, the lower portion of the rectangular and circular body (32, 33) to form a hole 29 or a groove 51, the lower portion of the H-shaped body (34) a groove 51 The groove 51 or the hole 29 is fixed pin 53 is inserted into the hole 29 formed in the protrusion 52 of the connecting portion 50 formed on one side end of the elastic lever 22, and It is penetrated and fixed. The shape of the groove 51 formed at the lower end of the working pin 24 is manufactured in the form of a fishing needle so that the space is formed on the outer side of the body of the working pin 24, the fixed pin is a groove After being inserted into the inside, it is possible to freely rotate, etc., but the locking portion of a certain length is formed so as not to escape out of the groove.

     6A and 6B show various embodiments of the compressive force transmission plate in the reverse strain load introducing apparatus of the present invention, and may be installed over the end of the elastic lever 22 or the entire length of the elastic lever 22. The shape can be manufactured and used in a form that can support or raise the bridge girder 10 in close contact with the bridge girder 10 in the lower portion, the side portion and the upper portion in various forms.

Produced in the form of a "c" shaped convex portion 36 in which the compressive force transmission plate 27 is upwardly convex as in a), but a predetermined length is extended to extend downwardly from both sides of the body protruding upwardly convexly. The unit 35 is formed to be formed, and the support unit 25 to be described with reference to FIG. 7 is installed in the extension part 35, and the lower surface protruding upwardly convex is fixed to the elastic lever 22 to support the support. The device 25 is installed in close contact with the lower surface of the bridge girder 10 to serve as an elastic support point capable of absorbing the impact generated by the stretching force and the working load acting on the upward force and the bridge upper structure.

    b) the pressure transmission plate 27 is manufactured in the form of a concave downward "c" shaped convex portion 36, but the predetermined length is extended to be a certain length upward from both sides of the downwardly concave downward protruding body. The extension part 35 is formed, and the support part 25 to be described with reference to FIG. 7 is installed in the extension part 35 and the lower surface of the downwardly protruding body is fixed to the elastic lever 22 to support the support part 25. The device 25 is installed in close contact with the lower surface of the bridge girder 10 to serve as an elastic support point capable of absorbing the impact generated by the stretching force and the working load acting on the upward force and the bridge upper structure.

     7A and 7B show various embodiments of a supporting device of the reverse strain load introducing device according to the present invention, and are installed in the extension part 35 of the compressive force transmission plate 27 described with reference to FIG. 6. ) Is installed to be in close contact with the bridge girders 10 to absorb the impact caused by the stretching force and the working load acting on the upper force and the bridge upper structure.

    The support apparatus 25 is fixedly installed on a steel plate of a certain standard, and the support device 25 installed on the compression force transmission plate 27 fixedly installed at regular intervals around the guide plate 26 as

    a) is a protrusion 38 formed on an upper portion of the pad 37 having a predetermined size and thickness, and b) is a flat portion 39 having an upper portion of the pad 37 having a predetermined size and thickness. , c) is a screw jack 60 is installed on the top of the pad 37 having a predetermined size and thickness, the upper portion of the support device 25 is generated in the elastic lever 22 in contact with the bridge girder 10 It acts as an elastic support point while transmitting the increased upward force.

The material of the pads 37 used in FIGS. A), b) and c) is selected from materials such as synthetic rubber and fluorine resin (PTFE) having a low friction with the lower surface of the bridge girder 10 and a rigid iron plate. It can be used selectively, depending on the situation of the site.

In addition, the guide plate 26 is installed at regular intervals on the outside of the support device 25, the support device 25 is the compression force when the support device 25 moves in close contact with the bridge girder 10 This is to prevent the departure from the outside of the transfer plate (27).

8 is a view showing the installation of the reverse strain load introduction device of the present invention in the lower portion of the bridge girder of the bridge, the pier provided for constructing the bridge of the reverse deformation load introduction device 20 described in FIGS. And a pedestal 42 is installed at the bridge or the bridge 11 between the bridge girders 10 installed in succession in the transverse direction among the bridge girders 10 installed in a plurality of longitudinal and transverse directions. 42 to form a support shaft (40) consisting of a pair of support (41), the one end of the fixed lever 21 and the elastic lever 22 is welded or bolted between the support 41, integral welding or bolt The joint part 31 is fixed to the upper portion of the support 41, and one side end of the actuating lever 23 is movable on the pedestal 42 below the movable part 23, but the actuating lever 23 and the pedestal ( 42) between screw jack or u The jack 30 is provided with a lifting device 30 such as a jack, and the hole 29 is formed at a predetermined position of the other end of the fixed lever 21, and the elastic lever 22 is installed diagonally downward from a lower portion thereof. A hole 29 is drilled at a predetermined position of the other end, and a connection part 50 is formed at the other end of the actuating lever 23, and the connection part 50 is a hole 29 drilled on the elastic lever 22. And a working pin 24 inserted into and fixed to a hole formed in the fixing lever 21 and the elastic lever 22 is provided in contact with the lower side of the lower portion of the groove 50 of the connecting portion 50 formed in the working lever 23. 51 is installed to be inserted into the hinge so that the hinge is movable, the elastic lever 22 is formed to extend a certain distance from the elastic lever 22 longer than the fixed lever 21 and the working lever 23 by a predetermined length. At a certain position of the end, the support and upward compressive force is transmitted to the bridge girder 10, and the elastic support points Install the compressive force transmission plate 27 installed to do the work, but the support device 25 mounted on the compressive force transmission plate 27 is the lower surface of the bridge girder 10 located on both sides of the reverse strain load introduction device 20 It is installed so as to be in close contact with the reverse deformation load introduction device 20 so that the upward compression force generated in the elastic lever 22 is introduced into the bridge girder 10.

The role of the fixed lever 21, the elastic lever 22 and the working lever 23 and the form of the compressive force transmission plate 27 and the support device 25, the working pin 24 and the elastic lever 22 formed The shape and the role of the connector 50 are the same as those described above with reference to FIGS. 1 to 7, and thus descriptions thereof will be omitted.

However, it is also possible to install the support point 28 installed at a certain distance from the portion where the elastic lever 22 and the working lever 23 are connected to each other, and the compression force transmission plate 27 is installed in the field of the various forms Select the form according to the state of the bridge girder 10 to be installed in the connecting portion 50 to transmit the support and upward compression force.

9 is a front view showing the installation of the reverse strain load introduction device of the present invention under the bridge girder of the bridge, and as already mentioned in FIG. 8, the compressive force transmission plate 27 is provided at the bottom of the bridge girder 10. As installed so as to be positioned, the reverse strain load introduction device 20 is installed on the upper part of the bridge and the cross 11 between the bridge girder 10 installed laterally on the bridge and the bridge 11 and the compression force introduction plate 27 To be in close contact with the lower portion of the bridge girder 10 to support the bridge girder 10 to serve as an elastic support point.

10 is a view showing the installation of the reverse strain load introduction device of the present invention in the bulkhead installed to connect the unit steel girders of the steel bridge, connecting the unit steel girders 13 installed in the bridge and alternating 11 One side of the pedestal 42 of the reverse deformation load introduction device 20 is installed on the partition wall 45 so as to be welded or bolted and fixed, and a fixing lever is provided on the other side of the pedestal 42 and the support 41. 21 and the elastic lever 22 and the actuating lever 23 are installed in the same manner as described in FIGS. 1 to 7, and then the compression force transmission plate 27 is attached to the extension part 35 of the elastic lever 22. It is fixedly installed to support the lower portion of the bridge girders 10 installed on both sides of the reverse deformation load introduction device 20 and to serve as an elastic support point, and the upward compressive force generated in the elastic lever 22 is the unit steel of the steel bridge. Girder (13) It is to be introduced into the bridge bridge girders (10).

On the elastic lever 22 it is possible to install a plurality of the compressive force transmission plate 27 and may also install the support point described in FIG.

11 is a view showing the installation of the reverse strain load introduction device of the present invention on the side of the bridge girders, the lower side of the bridge girders 10 between the bridge girders 10 installed laterally in the bridge and alternating 11 Both sides of the pedestal 42 of the reverse strain load introduction device 20 is fixed to the abdomen by welding or bolts, and the fixing lever 21, the elastic lever 22, and the contents as described above with reference to FIGS. 1 to 7. The actuating lever 23 is installed and the actuating lever 23 acts upward by the lifting device 30 installed in the pedestal 42 to lift the elastic lever 22 upward so that the compressive force of the bridge girder 10 is increased. Selecting a suitable form among the various forms of the compressive force transmission plate 27 so as to act on the) to mount the support device 25 so as to be attached to the lower portion of the bridge girder 10 and the upward compression force introduced to the elastic lever 22 Being introduced into this bridge girder The lock.

One or more installations of the compressive force transmission plate 27 on the elastic lever 22 can be installed at regular intervals so as to support the bridge girders 10 and serve as elastic support points.

     12 is a view showing another embodiment of the reverse strain load introduction device of the present invention, the reverse strain load introduction device 20 to the left and right side from the pier successively installed the reverse strain load introduction device 20 It is to be installed and supported on the lower or side of the bridge girders 10 installed on the left and right sides of the bridge, the reverse deformation load introduction device 20 is successively installed on the piers between the bridge girders 10 installed on the bridge and fixed to the left and right The support device 25 mounted on the compressive force transmission plate 27 installed on the elastic lever 22 is in close contact with the lower surface of the bridge girder so that the upward compression force generated on the elastic lever 22 can be transmitted to the bridge girder.

     As another example, as shown in FIG. 12, an integrated reverse strain load introducing device is provided, and the bridge girders 10 are integrally connected to the piers between the bridge girders in the bridges in which the bridge girders 10 are vertically and laterally connected. The supporting device 25 installed on the compressive force transmission plate 27 installed on the elastic lever 22 and supporting the lower portion of the bridge girders installed in the longitudinal direction on the left and right sides of the piers and serving as elastic support points To do this.

     The integrated reverse deformation load introduction device 20 is a diagonal between the working lever 23 and the working lever 23 and the fixed lever 21 installed at a predetermined length on the pedestal 42 to be installed on the pier. Fixing lever is installed to be installed on the upper side of the elastic lever 22 and the elastic lever 22 is installed to be a triangular shape, the elastic lever 22 is installed to be fixed to each other and the vertex portion is installed diagonally from each other to meet each other. (21), the actuating lever 23, the elastic lever 22 and the fixed lever 21 is connected to each other by the acting pin 24, but the elastic lever by the connecting portion 50 formed on the actuating lever 23 22 and the working lever 23 is to be hinged.

     The compressive force transmission plate 27 is installed in the extension portion 50 extended from the elastic lever 22 by a predetermined distance, and the support device 25 is mounted in the extension portion 35 of the compressive force transmission plate 27 in the longitudinal direction. The installed bridge girders 10 are installed to serve as supporting and elastic points on both sides.

     The roles of the elastic lever, the fixed lever and the actuating lever and the various devices of the reverse deflection load introduction device have the same functions as those mentioned in FIGS. 1 to 7.

     However, various levers 21, 22, and 23 are integrally formed so as to be supported simultaneously on both lower portions of the bridge girders installed in the longitudinal direction, and the elastic levers 22 are installed to be installed in the diagonal direction downwards, thereby supporting the center portion ( When the upward compression force is transmitted to the actuating lever 23 by the lifting device 30 installed in the 42, the point where the elastic lever 22 and the actuating lever 23 meet acts as a hinge 44 to be transmitted to the actuating lever 23. As the upward compression force is transmitted to the elastic lever 22, the upward compression force is transmitted from the lower portion of the bridge girder by the support device 25 of the compression force transmission plate 27 mounted on the elastic lever 22.

     13 is a view showing that the reverse strain load introduction device of the present invention is installed on the bridge girder as another example, the reverse deformation load introduction device 20 on the top of the bridge girder, such as a cable-stayed bridge Anchoring the wires 43 that can be fixed to connect both ends of the elastic lever 22 to each other at a predetermined distance, the lifting device 30 in the upper central portion of the bridge girders 10 of the point where the wire 43 is anchored ) And then install the working lever 23 thereon and install the support rod 46 of the upper upward on the working lever 23 at the point where the lifting device 30 is installed to be integrated with the fixed lever 21 At the point where the supporting rod 46 and the fixed lever 21 meet, the elastic lever 22 is installed on both sides of the supporting rod 46 diagonally, and both ends of the elastic lever 22 are connected to the wire 43 and fixed. Lever, elastic lever and action lever The pin 24 is connected through, but the connection between the elastic lever 22 and the working lever 23 is inserted into the working pin 24 in the groove 51 of the connecting portion 50 formed on the working lever 23 When hinge coupling is performed and then upward force is introduced to the lifting device 30, a reaction force is generated on the elastic lever 22 fixed to the wire 43 so that the bridge girder is lifted upward to support the bridge girder upward. I'm doing it.

     Figure 14a, b is a view showing another embodiment of the reverse strain load introduction device applied in Figure 13, Figure a is an elastic lever 22 of the reverse strain load introduction device on top of the bridge girder of the bridge, such as cable-stayed bridge Anchor the wire 43 that can be fixed to connect both ends to each other at a certain distance, and install the lifting device 30 in the upper center of the bridge girder 10 at the point where the wire 43 is anchored and above While installing the actuating lever 23 and installing the fixed lever 21 at regular intervals, the elastic lever 22 is installed on both sides diagonally between the fixed lever 21 and the working lever 23, and both ends of the elastic lever are installed. Fixed to the wire 43, and the fixing pin and the elastic lever to the point where the action pin 24 is inserted and fixed, the elastic lever 22 and the action lever 23 at the point where the elastic lever 22 to meet In the groove 51 of the formed connection part 50 After inserting the working pin 24 to the hinge coupling, the upward force is applied to the lifting lever 23 to the lifting device 30 and transferred to the elastic lever 22, and the wire 43 connected to the elastic lever 22. By the bridge girder is lifted up.

       As another embodiment Figure b is an anchoring the wire 43 to the upper portion of the bridge girder of the bridge, such as cable-stayed bridge at a certain distance to the two ends of the elastic lever of the reverse strain load introduction device to each other fixed, The lifting device 30 is installed in the upper center portion of the bridge girder at the point where the wire is anchored, and the supporters 41 are installed at portions separated by a predetermined distance to both sides, and the fixing lever 21 is horizontal in one direction of the support 41. After installing the elastic lever 22 diagonally at the point where the fixed lever 21 and the support 41 meet each other, the elastic lever 22 installed on both sides with the lifting device 30 in the center In order to connect the working levers 23 to the ends of the elastic levers 22 installed on both sides in order to connect the two working levers 23, the central portion of the working lever 23 is installed to be in contact with the lifting device 30, G Points 41, the fixed lever 21 and the elastic lever 22 is connected to each other to the fixed connection portion, the place where the fixed lever 21 and the elastic lever 22 meet each other at the other end of the working pin ( 24 is inserted into a fixed connection, hinged connecting the working pin 24 to the connecting portion 50 formed at the end of the working lever 23, the end of the elastic lever 22 is fixed to the wire 43 after connecting When the upward force is applied to the lifting device 30 to transmit the upward force to the actuating lever 23, a reaction force is generated by the fixed-connected wire 43 so that a force for lifting the bridge girder is applied to the bridge girder. Will be supported.

     In addition, all types of materials used in the reverse strain load introduction device may be configured using not only the steel but also non-metallic materials such as carbon fiber and glass-reinforced fiber. It is also clear that the above-described apparatus may be manufactured by mixing the metal material and the non-metal material by the method.

     FIG. 15 is a diagram showing a cross-sectional moment stress diagram after the reverse strain load introduction device of the present invention is installed in a bridge girder of a simple beam, and a compressive force is introduced. As shown in FIG. When the compressive force transmission plate 27 of the reverse strain load introduction device 20 is installed at both points 15 of the bridge, the bridge girders are formed in the shape of a parabola as shown in a, a bending moment stress degree acting on the bridge girders before installation. It can be seen that the maximum bending moment acts on the center part.

      However, if the compressive force transmission plate 27 of the reverse strain load introduction device is installed at the point, it can be seen that a trapezoidal bending moment in which the maximum bending moment does not occur in the center portion as shown in FIG.

     In other words, it can be seen that a certain amount of upward compressive force is applied to the bridge girders at the point, and thus the magnitude of the stress applied to the bridge girders is canceled to act on the bridge girders. Therefore, for this reason, the present invention is to install the reverse strain load introduction device to the bridge girders of various new bridges and temporary bridges to increase the load capacity of the bridge girder to reduce the height of the bridge girder while reducing the height of the bridge girder bridge bridge girder It has been found to be an advantageous device that can extend the span length of.

     16 is a diagram showing the cross-sectional moment stress diagram after the reverse strain load introduction device of the present invention is installed in a bridge girder of a continuous bridge to introduce a compressive force, and a plurality of points 15 are formed and the bridge girders 10 are mutually different. The reverse deformation load introduction device 20 is installed on the bridge and the bridge 11 to the continuous bridge 2 connected to be installed to introduce upward force to the bridge girder, and FIG. A) supports the bridge girder at the point and upwards. It is shown that the bending moment acting on the continuous bridge 2 when no force is applied, and a sub-moment of a certain size acts at each point 15, and a positive moment acts at the center of the span.

       FIG. B) is a diagram showing the bending moment acting on the bridge girders after installing the reverse strain load introduction device 20 at each point 15 of the continuous bridge 2 and introducing an upward force to the bridge girders.

       Here, comparing FIG. A) with FIG. B), it can be seen that the sub-moment does not act at each point 15 while the size of the positive moment is also reduced. This is because the upward force acts on the bridge girders 10 by the reverse deformation load introduction device 20, and thus, the size of the government moment due to the load acting on the bridge girders is reduced, resulting in no parent moment acting at all. You can also see that the size of the comment is reduced to work. As a result, the upward compressive force is introduced into the bridge girder by the reverse deformation load introduction device, thereby greatly reducing the cross-sectional force of the bridge girder, thereby reducing the steel and the mold height when manufacturing the bridge girder, and by installing a plurality of elastic points at the points, Being able to expand more has been confirmed as an advantage of the present invention.

      The present invention utilizes a rising device by installing a reverse strain load introduction device to introduce a upward strain load introducing device to the bridge girders installed in the bridges to the reverse strain load introduction device is applicable to a variety of new bridges, temporary bridges and old bridges It is designed to reduce the cross-sectional force of bridge girders by introducing upward force to bridge girders by transferring upward force, and to increase the load capacity of aging bridges. By reducing the cross-sectional force, such as shear force, it is possible to reduce the mold height of the bridge girders made of various conventional methods, to reduce the use of expensive steel materials, and to reduce the size of the reduced bridge girders to bridge substructure The transmitted load is reduced to reduce the size and number of installations It can reduce the overall construction cost of bridge construction, and can reduce the stress on bridge structure due to the reduced cross-sectional force to improve the durability of bridge structure, and also the load capacity of bridge is lowered due to aging. Even when maintenance reinforcement is required, the device is simply installed in the bridge girder to introduce upward compressive force to the bridge girder, so that the reinforcement of the load capacity is simply achieved. It is very easy to construct and reinforcement easily, and additionally, PSC steel is unnecessary for the introduction of high strength compressive force, and it is possible to perform additional repair work easily during additional maintenance. In remuneration It is an environmentally friendly construction method because it can prevent the generation of waste materials generated during demolition by extending the durability of the amount.

   On the other hand, in the construction of new construction, maintenance, and bridge construction (atomization method of steel korea), in the case of steel bridges, high-strength anchors are formed on the side, upper, and lower flanges of the abdomen, and psc steel is attached to provide strong In the case of introducing tension, the thickness of the abdominal member and the upper and lower flanges of the steel bridge is very thin, so that the tension of the high tensile force leads to the impact load, which first causes the buckling of the abdominal member, the upper and lower flanges. In the present invention, for the force flow inside the structure, which is very complicated by causing secondary stresses such as residual stress, the present invention provides a point of support for a large portion of the bridge girder. It is a very useful method that can solve the problems of the prior art by supporting.

Claims (31)

delete delete       In the reverse deflection load introduction device for introducing upward compression force to the bridge girder for the bridge girder of the newly installed, aging and temporary temporary bridges using various girders, the bells and bridges installed for the installation of the bridge Among the girder bridges which are installed in a plural number in the lateral direction, a reverse deformation load introducing device is installed in the bridges and the girder between the girders installed in the plural number in the lateral direction to introduce an upward compressive force to the girder, or         The bridge girders, which are unit steel girders installed on bridges and bridges, are used in the reverse deformation load introduction device to introduce upward compression force to bridge girders for bridge girders of newly installed, aged and temporary temporary bridges using various girders. In the introduction of an upward compressive force to the bridge girder, so that one side of the base of the reverse strain load introduction device is fixed to the welding or bolted to the partition wall installed to connect to each other from the side,       The reverse deformation load introduction device forms a support shaft made of a pair of supports on a pedestal made of steel, and welded or bolted joints integrally welded or bolted to one end of a fixed lever and an elastic lever between the supports and the Fixing the support, and operatively install one side of the actuating lever on the bottom of the pedestal, install a lifting device between the actuating lever of the installed side and the pedestal, and form a hole at a predetermined position of the other end of the fixing lever And drill a hole on the elastic lever installed diagonally downward to be separated from the lower portion thereof, and form a connection portion at the other end of the actuating lever to contact the lower side of the hole drilled on the elastic lever. An action pin inserted into a hole formed in the fixed lever and the elastic lever is connected to the action lever. Insertion hinge is installed in the connection portion formed, the end of the elastic lever formed to extend a certain distance from the elastic lever, the compression force transmission plate is installed in the periphery of the support device installed to support and compressive force to the bridge girders and to act as an elastic support point Reverse load introduction device using a lever system for introducing a reverse deformation load acting in a direction opposite to the gravity direction to the bridge superstructure characterized in that it is mounted.      The method of claim 3, wherein      Wherein the lifting device is a screw jack or hydraulic jack reverse strain load introduction device using a lever system for introducing a reverse strain load acting in a direction opposite to the gravity direction to the bridge superstructure.      The method of claim 3, wherein      The elastic lever is made of various types of steel having elasticity, but an extension portion is formed which extends a predetermined length longer than the length of the fixed lever and the action lever. One end is fixedly connected to the upper part of the support and is integrally fixed with the other end. It is fixedly connected to the fixing lever and the working pin on the side, while the lower part of the lower distance separated from the elastic lever is installed in the lifting device installed between the working lever and the pedestal while being hinged to the other end of the working lever installed in contact with the working pin. A reverse deformation load introduction device using a lever system for introducing a reverse deformation load acting in a direction opposite to the gravity direction to a bridge superstructure, characterized by transmitting upward compressive force to the bridge girder.       The method of claim 5,       The extension part is provided with a compressive force transmission plate provided with a support device is installed in close contact with the lower portion of the bridge girder is installed a device for transmitting the upward compressive force to introduce a reverse deformation load acting in the opposite direction to the direction of gravity to the bridge upper structure Reverse strain load introduction device using lever system.       The method of claim 5,       Introduces a reverse deformation load acting in the opposite direction to the direction of gravity in the bridge superstructure, characterized in that a plurality of compression force transmission plate installed with a support device is installed over the entire length of the elastic lever to form a plurality of elastic support points Reverse strain load introduction device using lever system.       The method of claim 3, wherein       The fixed lever is fixedly coupled to the upper end of one end is integrally connected with the elastic lever, the other end is connected to the other end of the elastic lever through the action pin to serve to support the reverse deformation load introduction device, A lever for introducing a reverse deformation load acting in a direction opposite to the direction of gravity in a bridge superstructure characterized by the role of assisting the formation of reaction forces so that the upward compressive force applied to the elastic lever can be properly applied to the bridge girders. Backward strain load introduction device using system.      The method of claim 3, wherein      The actuating lever is installed in the state where the other end is movable on the upper part of the lifting device, and one side end is hinged by inserting the acting pin into the groove of the connecting part formed at the one end, thereby increasing the upward force generated in the lifting device. Introduction of reverse deformation load using lever system to introduce reverse deformation load acting in the opposite direction of gravity to bridge superstructure which is characterized by directly receiving and transmitting upward force to elastic lever hinged at one end Device.      The method of claim 9,      The connecting portion has a groove formed at the center at one end of the working lever and protrusions are formed at both sides of the groove to connect the working lever and the elastic lever with each other. An apparatus for introducing a reverse strain load using a lever system for introducing a reverse strain load acting in a direction opposite to the gravity direction to a bridge upper structure characterized in that it is formed through a "c" shape as a whole.       The method of claim 10,       A reverse strain load introduction device using a lever system for introducing a reverse strain load acting in a direction opposite to the gravity direction to a bridge upper structure characterized in that a support point is provided at a predetermined position between the elastic lever and the actuating lever.       The method according to any one of claims 5 and 8 to 10,       The action pin is a reverse deformation load using a lever system for introducing a reverse deformation load acting in a direction opposite to the gravity direction to the bridge upper structure characterized in that a hole or a groove is formed in the body of a certain length and the lower part of the body Introduction device. delete       The method according to any one of claims 5 and 8 to 10,       The groove is made in the form of a fishing needle so that the space portion is formed on the lower outer side of the action pin body so that the fixing pin can be freely rotated after the fixing pin is inserted into the groove, but the predetermined length of the hook so as not to escape outside the groove. An apparatus for introducing a reverse strain load using a lever system for introducing a reverse strain load acting in a direction opposite to the gravity direction to a bridge upper structure characterized by forming a portion.       The method according to claim 6 or 7,       The compressive force transmission plate acts in a direction opposite to the direction of gravity on the bridge superstructure, characterized in that the extension portion is formed to extend a certain length downwardly downward from both sides of the upwardly convex projecting body of the "c" shape Reverse deformation load introduction device using lever system for introducing reverse deformation load.       The method according to claim 6 or 7,       The compressive force transmission plate acts in a direction opposite to the direction of gravity on the bridge superstructure, characterized in that the extension portion is formed to extend a certain length upwardly downward from both sides of the downwardly concave downwardly protruding body of the "C" shape Reverse deformation load introduction device using a lever system for introducing a reverse deformation load.       The method according to claim 6 or 7,       The support device is a reverse direction acting in a direction opposite to the direction of gravity on the bridge upper structure characterized in that a projection, a flat portion or a screw jack is installed on top of a pad of synthetic rubber or fluorine resin (PTEE) having a certain size and thickness Reverse deformation load introduction device using lever system for introducing deformation load. delete        In the reverse deflection load introduction device for introducing upward compression force to the bridge girder for the bridge girder of the newly installed, aging and temporary temporary bridges using various girders, the bells and bridges installed for the installation of the bridge Among the girder bridges which are installed in a plural number in the lateral direction, a reverse deformation load introducing device is installed in the bridges and the girder between the girders installed in the plural number in the lateral direction to introduce an upward compressive force to the girder, or         The bridge girders, which are unit steel girders installed on bridges and bridges, are used in the reverse deformation load introduction system to introduce upward compression force to bridge girders for bridge girders of newly installed, aging and temporary temporary bridges using various girders. In the introduction of an upward compressive force to the bridge girder, so that one side of the base of the reverse strain load introduction device is fixed to the welding or bolted to the partition wall installed to connect to each other from the side,       Introducing the reverse strain load acting in the opposite direction to the gravity direction in the bridge superstructure characterized by introducing the upward compressive force to the bridge girders installed in the longitudinal direction by installing the reverse strain load introduction device in the opposite direction in one place Reverse strain load introduction device using lever system. delete In order to introduce the upward compressive force to the bridge girders by installing the reverse strain load introduction device on the bridges between the bridge girders installed on the bridge girders, the bridges between the bridge girders installed laterally in the longitudinal and lateral directions on the bridge girders. In the installation of the reverse strain load introduction device integrated on the side of the upper or bridge girders to introduce an upward compression force to the bridge girders installed on both sides in the longitudinal direction around the bridge,       The integrated reverse deformation load introduction device is an elastic lever installed diagonally between a working lever installed on a bridge or a side of a bridge girder and a predetermined length at an upper portion thereof and a working lever and a fixed lever. It is installed on the upper part of the elastic lever but the elastic lever is installed diagonally from both sides of each other and made of a fixed lever that is fixed to be coupled to each other, the working lever, the elastic lever and the fixed lever are connected to each other with a working pin. The elastic lever and the action lever are hinged by being inserted into the grooves formed in the connection part of the "-" shape formed on the action lever, and the extension unit extending a certain distance from the elastic lever transmits a compressive force provided with a support device and a guide plate around the support device. Install the plate and support it from both lower sides of the bridge girders And reverse deformation load introduction device to the bridge superstructure, which is characterized in that the installation point to the elastic portion acts with a lever system for the introduction of the reverse deformation load acting in the direction of gravity in the opposite direction.       Anchor the wires to the upper part of the bridge girder of the bridge such as the cable-stayed bridge at a certain distance, and install a lifting device on the upper center of the bridge girder at the point where the wire is anchored. Install the action lever and install the support rod upwards on the action lever at the point where the lifting device is installed and install it integrally with the fixed lever. Then install the elastic lever diagonally at the point where the support rod and the fixed lever meet, and install the elastic lever on both sides of the support rod. Connect both ends of the wire to the wire, and the fixing lever, the elastic lever and the actuating lever through the action pin, the connection between the elastic lever and the action lever is inserted into the groove of the connecting portion formed in the action lever hinge Gravity to the bridge superstructure characterized by the reverse strain load introduction device installed to be coupled Reverse deformation load introduction device using a lever system for the introduction of the reverse deformation load acting in the direction opposite to the direction. delete       Anchor the wires that can be fixed to both ends of the elastic lever to the upper part of the bridge girder of the bridge, such as cable-stayed bridge at a certain distance, and install the lifting device in the upper central part of the bridge girder at the point where the wire is anchored Install the supports in the opposite direction to each other at a certain distance from each other, install the fixing lever horizontally in one direction of the support, and install the elastic levers diagonally at the point where the fixing lever and the support meet each other. In order to connect the elastic levers installed on both sides to each other with one working lever, the working levers are respectively connected to the ends of the elastic levers installed on both sides, and the center of the working lever is installed to be in contact with the lifting device. The points where the elastic levers are connected to each other should be fixed connection parts. Where the lever and the elastic lever meet each other at the other end is an inverse strain load introduction device in which the action pin is inserted and the end of the elastic lever is connected to the wire. Reverse deformation load introduction device using a lever system for introducing a reverse deformation load.          In the introduction method for introducing the upward compressive force to the bridge girder to the bridge girder of the bridge in which new, old and temporary temporary bridges are installed using various girders,          a) On the pedestal made of steel in the bridges and bridges between the bridge girders installed in a row in the transverse direction of the bridge girders to form a bridge by installing a plurality of bridges in the longitudinal, transverse direction to install the bridges Installing a pair of supports and lifters;         b) welding or bolting the one end of the fixed lever and the elastic lever to the upper part between the support and the bolted joint and the support are fixed to each other;         c) movably installing one side of the actuating lever on the pedestal, the upper side of the lifting device installed on the pedestal;         d) forming a hole at a predetermined position of the other end of the fixed lever, and drills a hole on the elastic lever installed diagonally downward to a certain distance away from the bottom thereof, and forms a connection portion at the other end of the working lever to form the hole Installing in direct contact with a lower side of a hole drilled on the lever;         e) inserting and connecting a working pin inserted into a hole formed in the fixing lever and the elastic lever into a groove of a connecting portion of a "c" shape formed in the working lever;         f) Bridge girders are mounted on the end of the elastic lever formed to extend a certain distance from the elastic lever to support and compressive force to the bridge girders and to install a compressive force transmission plate provided with a guide plate around the support device installed to act as an elastic support point Completing the installation of the reverse strain load introduction device to be installed in close contact with the lower portion of the;         g) acting hydraulic pressure on the lifting device to apply an upward force to the actuating lever to transfer these upward forces to the elastic lever so that an upward compressive force acts on the compressive force transmission plate installed on the elastic lever so that the upward force is introduced into the bridge girder. step;        h) When all the above steps are completed, the reverse deformation load acting in the opposite direction to the direction of gravity is introduced into the upper structure of the bridge, which is characterized in that it comprises the step of closing the surroundings to introduce the compressive force to utilize the bridge. Reverse strain load introduction method using a device for introducing a reverse strain load using a lever system.      In the introduction method for introducing the upward compressive force to the bridge girder to the bridge girder of the bridge in which new, old and temporary temporary bridges are installed using various girders,         a) Welding or bolting one side of the pedestal of the reverse strain load introduction device to the bulkhead installed to connect the bridge girders, which are unit steel girders installed longitudinally and laterally at the bridge and alternating sides, to install steel bridges. Making;         b) fixing the support or the welded or bolted joint and the support, which are integrally formed by welding or bolting one end of the fixing lever and the elastic lever between the supports;         c) movably installing one side of the actuating lever on the pedestal, the upper side of the lifting device installed on the pedestal;         d) forming a hole at a predetermined position of the other end of the fixed lever, and drills a hole on the elastic lever installed diagonally downward to a certain distance away from the bottom thereof, and forms a connection portion at the other end of the working lever to form the hole Installing in direct contact with a lower side of a hole drilled on the lever;         e) inserting and connecting a working pin inserted into a hole formed in the fixing lever and the elastic lever into a groove of a connecting portion of a "c" shape formed in the working lever;         f) At the end of the elastic lever formed to extend a certain distance from the elastic lever, the support plate and the compressive force are transmitted to the bridge girder and a compression plate is installed around the support device installed to serve as an elastic support point. Closely contacting the lower part;         g) acting hydraulic pressure on the lifting device to apply an upward force to the actuating lever to transfer these upward forces to the elastic lever so that an upward compressive force acts on the compressive force transmission plate installed on the elastic lever so that the upward force is introduced into the bridge girder. step;        h) When all the above steps are completed, the reverse deformation load acting in the opposite direction to the direction of gravity is introduced into the upper structure of the bridge, which is characterized in that it comprises the step of closing the surroundings to introduce the compressive force to utilize the bridge. Reverse strain load introduction method using a device for introducing a reverse strain load using a lever system.       The method of claim 25,       Reverse step load acting in the opposite direction of gravity to the bridge superstructure, characterized in that the step in the step a) is installed on the side of the bridge girders instead of installing the pedestal and the support on the bridges and bridges between the bridge girders Reverse strain load introduction method using a device for introducing a reverse strain load using a lever system for introducing.        In the introduction method for introducing the upward compressive force to the bridge girder to the bridge girder of the bridge in which new, old and temporary temporary bridges are installed using various girders,       a) installing an actuating lever installed in the abdomen of the bridge girder at regular intervals laterally at the bridge piers and a predetermined length above the pedestal, and a lifting device between the pedestal and the actuating lever;       b) installing an elastic lever installed diagonally between the working lever and the fixed lever so as to have a triangular shape;       c) installing a fixing lever which is installed on an upper part of the elastic lever, and the elastic levers are installed to be fixed to each other with the vertex portions which are installed diagonally from each other and meet each other;       d) the actuating lever, the elastic lever and the stationary lever are connected to each other by a working pin, the actuating pin is inserted into a hinge formed in the groove formed in the "c" shaped connection portion formed in the working lever;       e) installing a compressive force transmission plate provided with a guide plate around the support device in close contact with the lower surface of the bridge girder in the extension portion extended from the elastic lever;       f) acting hydraulic pressure on the lifting device to apply an upward force to the actuating lever to transfer these upward forces to the elastic lever so that upward compressive force acts on the compressive force transmission plate installed on the elastic lever so that the upward force is introduced into the bridge girder. step;        g) Introducing the reverse deformation load acting in the opposite direction of gravity to the upper structure of the bridge, characterized in that the step of completing the compression to clean up the surroundings to use the bridge when all the above steps are completed Reverse strain load introduction method using a device for introducing a reverse strain load using a lever system.         In the introduction method of introducing an upward force to the bridge girder at the top of the bridge girder of the bridge, such as a cable-stayed bridge,          a) anchoring the wires capable of connecting and fixing both ends of the elastic levers to each other at a predetermined distance on an upper portion of the bridge girder of the bridge;         b) installing an elevating device in the upper center portion of the bridge girder at the point where the wire is anchored and installing a working lever thereon;         c) installing an upwardly supporting rod on the upper working lever at the point where the lifting device is installed to be integrated with the fixed lever;         d) connecting both ends of the elastic lever to the wire while installing the elastic lever diagonally at both sides of the supporting rod at the point where the supporting rod and the fixed lever meet;          e) The fixing lever, the elastic lever and the working lever is connected to the working pin, the connection between the elastic lever and the working lever is hinged by inserting the working pin into the groove of the "c" shaped connection portion formed in the working lever Installing so that;          f) acting hydraulic pressure on the lifting device to apply an upward force to the action lever to transfer these upward forces to the elastic levers so that upward force is transmitted to the wires connected to the elastic levers so that upward force is introduced into the bridge girder;         g) When all of the above steps are completed, the reverse deformation load acting in the opposite direction to the direction of gravity to the upper structure of the bridge characterized by consisting of the step of using the bridge to finish the process of introducing the upward force to clean up the surroundings Reverse strain load introduction method using lever system for introducing.       The method of claim 29,       Reverse strain load using a reverse strain load introduction device using a lever system for introducing a reverse strain load acting in a direction opposite to the gravity direction to the bridge superstructure, characterized in that the step of omitting the installation of the support bar of step c Introduction method.          In the introduction method of introducing an upward force to the bridge girder at the top of the bridge girder of the bridge, such as a cable-stayed bridge,          a) anchoring the wires capable of connecting and fixing both ends of the elastic levers to each other at a predetermined distance on an upper portion of the bridge girder of the bridge;         b) installing an elevating device in the upper center of the bridge girder at the point where the wire is anchored;         c) Installing the support in the opposite direction to each other at a predetermined distance to both sides around the point where the lifting device is installed, install the fixed lever horizontally in one direction of the support and the diagonal in that the fixed lever and the support meet each other Installing each of the elastic levers;         d) the center of the actuating lever is installed to be in contact with the lifting device while connecting the actuating levers to the ends of the elastic levers installed on both sides to connect the elastic levers installed at both sides with each other with one actuating lever. step;         e) Where the support, the fixed lever and the elastic lever is connected to each other to be a fixed connection portion, the place where the fixed lever and the elastic lever meet at a certain distance from the other end is formed in the action lever while inserting the action pin Hinge-connecting the actuating pin into a groove formed in the connection part of the 'c' shape, and fixing the end of the elastic lever to the wire;          f) acting hydraulic pressure on the lifting device to apply an upward force to the action lever to transfer these upward forces to the elastic lever so that upward force is transmitted to the wire connected to the elastic lever so that upward force is introduced into the bridge girder;         g) When all of the above steps are completed, the reverse deformation load acting in the opposite direction to the direction of gravity to the upper structure of the bridge characterized by consisting of the step of using the bridge to finish the process of introducing the upward force to clean up the surroundings Reverse strain load introduction method using lever system for introducing.

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