KR100547487B1 - Counter-directional load introduction lever apparatus introducing load apposite direction to gravity direction to the girder of bridge using the principle of a double lever and a wire, and counter-directional load introduction method using the apparatus - Google Patents

Abstract

     The present invention is a bridge of a temporary bridge temporarily installed for the maintenance and bridge construction of new bridges, such as prestressed concrete girder bridge, preflex girder bridge, steel box girder bridge, steel plate girder bridge, steel bridge As applicable to the girder,

     The other side of the fixing lever is stiffened to a support installed on the alternating or pier, and an extension portion having a smaller width is formed on an upper side of one side of the fixing lever, and by a one-way hinge shaft that can rotate only in one direction on the lower side of the fixing lever. After extending the rotation lever and installing a working lever at a certain distance on the lower side of the fixing lever, a lifting device is installed on the lower side of the working lever, and the extension part and the other end of the working lever are connected by a connecting plate. While installing the support shaft on the actuating lever to be installed at a point between the rotary lever and the hinge shaft, and after installing the support base on the end of the rotary lever, the shackles at regular intervals at the lower end of the fixed lever While installing a plurality of shackles in the upper portion of the support also by installing a plurality of wires on the shackle A connection and then making a reverse load introduction lever device by fixing the wire shackle in the top of the support,

    The produced reverse load introduction lever device is installed between the bridge girders installed on the bridge or alternator, and then is mounted on the action lever by the upward force of the lifting device installed at the lower end of the other end of the operation lever of the reverse load introduction lever device. The rotary lever is lifted upward by the one-way hinge shaft, and the upward force in the opposite direction to the gravity direction is introduced to the bridge girders at the bottom of the bridge girders or the support bases installed on both sides of the bridge girders. The present invention relates to a reverse load introduction method in which an upward force in a direction opposite to the gravity direction is introduced into the bridge girders by introducing and fixing a tension force to wires respectively connected to the shackle.

Description

      Reverse load introduction lever device that introduces the load in the direction opposite to the gravity direction to the bridge girder using the double lever principle and the wire to the lever system composed of the fixed lever, the rotating lever and the actuating lever. {Counter- directional load introduction lever apparatus introducing load apposite direction to gravity direction to the girder of bridge using the principle of a double lever and a wire, and counter-directional load introduction method using the apparatus}             

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

     Figure 2 is a view showing that the length of the rotary lever as another embodiment of the reverse load introduction lever device of FIG.

     3 is a view showing a reverse load introduction lever device which is another embodiment of the present invention.

      4 is a view showing that the length of the rotary lever is lengthened as another embodiment of the reverse load introducing lever device of FIG.

      5 is a view showing a through hole formed in the working lever of the present invention.

      Figure 6a, b is connected to the lower fixed lever or fixed lever and the rotary lever of the present invention

A drawing showing a unidirectional hinge axis.

     Figure 7 is a view showing the connection of the upper end of the fixed lever or the extension of the fixed lever of the present invention and one side of the working lever with a connecting plate.

     8 is a view showing a state in which the operating lever and the connecting plate of FIG. 7 is hingedly connected by a fixing pin.

     9 is a view showing a support pedestal installed on the rotary lever of the present invention.

     FIG. 10 shows a case in which the pedestal of FIG. 9 is directly supported on the lower part of the bridge girder.

drawing.

     FIG. 11 is a view illustrating a case in which the support pedestal of FIG. 9 is installed and supported on the lower side of the bridge girder; FIG.

     Figure 12a, b is a view showing a support for supporting the reverse load introduction lever device of the present invention in the piers or alternators.

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

      1 ... bridge girder

      10 ... Reverse load introduction lever unit

      20 ... Locking lever 21 ... Extension

      22 ... Connecting plate 23 ... One-way hinge shaft

      24 ... upper locking lever 25 ... lower locking lever

      26. Vertical 27.

      28. Push pin 29 ... Washer

      30 ... Working lever 31 ... Support shaft

      32 ... through hole 33 ... clearance

      40 ... rotary lever 41 ... long

      50 ... Support Base 51 ... Elastic Pad

      52. Guide 53 ... Base plate

      54 ... "L" shaped extension 55 ... "ㄹ" shaped extension

      60 ... support 61 ... support shaft

      62 ... Shackle 63 ... Wire

      100 ... lift

The present invention is installed on temporary bridges temporarily installed for maintenance and bridge construction of new bridges such as prestressed concrete girder bridges, preflex girder bridges, steel box girder bridges, steel plate girder bridges, steel bridges, etc. As it is applicable to all kinds of bridge girders,

Tighten the other side of the fixed lever which is connected to the support installed on the alternating or piers, or the upper and lower fixing levers in the truss shape with the vertical member and the vertical member, and the extension part of the upper part of the one side of the integrated fixing lever is somewhat extended. Or an extension extending from the one side of the upper fixing lever of the fixing lever to which the upper and lower fixing levers are connected to each other, and extending in one direction to one side of the integrated fixing lever and one side of the lower fixing lever to which the upper and lower fixing levers are connected. Extends the rotating lever of various lengths by the one-way hinge shaft which can only rotate, and then installs a lifting lever at a lower distance from the lower side of the fixing lever while installing a lifting device on the lower side of the operating lever. And, while connecting the other end of the extension portion and the action lever with the connecting plate Install a support shaft on the lever and install it at a certain point between the rotary lever and the hinge shaft, and install a support base at the end of the rotary lever, and then install a plurality of shackles at regular intervals at the lower end of the fixed lever. While installing a plurality of shackles on the upper portion of the support and connecting the wires to the shackle respectively, and then fabricating a reverse load introduction lever device in which the wire is fixed to the shackle on the upper portion of the support,

The produced reverse load introduction lever device is installed between the bridge girders installed on the bridge or alternator, and then is mounted on the action lever by the upward force of the lifting device installed at the lower end of the other end of the operation lever of the reverse load introduction lever device. The rotary lever is lifted upward by the one-way hinge shaft, and the upward force in the opposite direction to the gravity direction is introduced to the bridge girders at the bottom of the bridge girders or the support bases installed on both sides of the bridge girders. The present invention relates to a reverse load introduction method in which an upward force in a direction opposite to the gravity direction is introduced into the bridge girders by introducing and fixing a tension force to wires respectively connected to the shackle.

The through lever is formed in the actuating lever so that the upward force is applied by the rising direction installed at the lower end of the other end of the actuating lever. To induce force.

One principle that allows this reverse load introduction lever device to be utilized is the principle of a double lever as mentioned in the title of the present invention.

The above principle is described in terms of the configuration of the present invention, when lifted by the lifting device installed on the pier or the pier at the lower end of the other end of the actuating lever installed on the reverse load introduction lever device installed on the pier or the shift One end of the extension lever and the actuating lever extended from the fixing lever by the supporting shaft installed in the connecting plate is connected by the connecting plate, but the actuating lever and the connecting plate are connected by the fixing pins to have a constant clearance, so that the working lever is lifted upward. The rotary lever is lifted by being movable within the span of the fixing pin connected to the connecting plate by the support shaft, and the movable lever is lifted upward by the one-way hinge shaft and gravity is supported by the support pedestal installed on the rotary lever. The deformation load in the opposite direction is applied to the bridge girders All.

In this way, once the force is applied to the actuating lever, the rotation lever is moved by the one-way hinge shaft and the supporting shaft under the force of the one-way hinge shaft, that is, the first acting force is transferred to the second stage. It is the principle of conveying the power that has been made.

When the support base of the reverse load introduction lever device is installed on the lower or one side of the bridge girder and the upward force is introduced to the actuating lever using the lifting device, the rotary lever acts upward by the one-way hinge shaft and the support shaft. While the upward force is introduced to the bridge girders by the support pedestal installed on the rotary lever, and at the same time, a plurality of support pedestals are installed on the rotary lever in the span section in addition to the support points uniformly installed on the bridge structure. By adding a plurality of elastic support points in addition to the support points installed on the bridges or bridges, the bridges can extend the span length of the bridges, reducing the cross-sectional force generated in the upper structure of the bridges. Being able to build and repair bridges .

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, the parent and shear forces, etc., while the bridge's planned endurance is completed and the demolition is inevitable, bridges to enhance the load capacity If there is a risk of cracking in the upper structure of the bridge due to exceeding the supporting load of the bridge, reverse load introduction lever device is provided on both sides of one side of the bridge girder installed on the lower or both sides of the bridge girder. By providing force in the opposite direction of gravity to the bridge girders, it is possible to provide a method of reinforcing the cross-sectional force of the bridge, extending the bridge's durability and repairing the bridge's durability.

Looking at the conventional method has been applied as follows.

In order to reduce the cross-sectional force of the structure to the newly formed bridge, the most commonly used method is the above-mentioned girder which is most used in the bridge type such as PS beam bridge, PS box girder bridge, plate girder bridge, rigid box girder bridge, etc. There is a classical method of introducing upward tension to the girder by introducing a tension force on the strand by placing the strand on the abdomen or lower abdomen side of the beam, and focusing on a portion of the steel beam after producing a given amount of rise in the steel. There is a preflex beam that removes the concentrated load and introduces upward compressive force to the steel beam after the load is finished and the concrete is finished.

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 tension is applied to these wires, and then the steel wires are fixed and fixed so that upward compressive force can be introduced to the girder.

In addition, as a conventional technology that can be applied to the bridge temporarily installed for the construction of the bridge, registered as the name of "prefabricated tension steel sheet" as patent registration No. 10-0316518 dated November 21, 2001 temporarily 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 compressive force of a very large force is introduced to the strand and the steel, so that the stranded wire installed in the upper structure of the bridge to introduce the compressive force introduced to the strand and the steel into the bridge superstructure and As a result, the steel is settled in the anchorage, and as a result, an unnecessary compressive force is applied to the anchorage, which should not be introduced into the anchorage, but excessive stress on the upper structure of the bridge causes brittle fracture due to small external forces. You always have

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 period of time has passed since the bridge was constructed 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 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 when 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, in order to solve the problems of the prior art as described above, after connecting the fixed lever or the upper and lower fixed levers of each other to move upward by using a one-way hinge shaft to the lower or lower fixed lever of the integrated fixed lever. After installing the rotary lever, the extension part is extended to the upper part of the fixed lever and the one end of the actuating lever is connected up and down with the connecting plate, and the supporting shaft is installed on the actuating lever. Alternatively, when the upward force is applied by the lifting device installed between the shifts, the supporting shaft serves as the lever axis of the lever of the lever and the rotary lever connected to the one-way hinge shaft moves upward by the one-way hinge shaft while being supported at the end of the rotary connector. The upward force is transmitted to the pedestal, resulting in a gravitational chamber on the bridge girders. The force in the opposite direction is introduced to reduce the cross-sectional force of the bridge girder to reduce the height of the bridge, thereby reducing the cost of construction, and a plurality of support pedestals installed on the rotary lever serve as elastic support points. The present invention provides a method for introducing a reverse load introducing lever device to introduce a reverse load into a bridge girder.

The present invention is the other side of the fixing lever connected to the upper and lower fixing levers 24 and 25 in a truss shape by a fixed lever 20 or a yarn (27) and a vertical member 26 integrated in the support 60 installed on the alternating or piers. And extend a predetermined length at one side of the upper fixing lever 24 of the fixing lever which forms a small width of the extending portion 21 on the upper side of one side of the fixed fixing lever or connects the upper and lower fixing levers to each other. One extension portion 21 is formed, and one side lower or upper and lower fixing levers 24 and 25 of the integrated fixed lever 20 can be rotated in one direction only on one side of the lower fixing lever 25. By extending the rotation lever 40 having various lengths by the one-way hinge shaft 23 and then installing the working lever 30 at a predetermined distance to the lower side of the fixing lever, the other side of the working lever 30 Install the lifting device 100 in the lower portion, the The support shaft 31 is installed on the actuating lever 30 while connecting the other end of the extension portion 21 and the actuating lever 30 to the connecting plate 22, but the rotary lever 40 and the hinge shaft 23 are provided. ) And a plurality of shackles 62 at regular intervals at the lower ends of the fixing levers 20 and 25 after installing the support base 50 at the end of the rotary lever 40. While installing a plurality of shackles 62 on top of the support 60 and connecting the wires 63 to the shackles 62, respectively, and then wires 63 to the shackles 62 above the support 60. After manufacturing the reverse load introduction lever device (10) with

The produced reverse load introduction lever device 10 is installed between the bridge girders installed on the bridge or alternating shaft, and then the lower portion of the lifting device 100 installed at the lower end of the action lever 30 of the reverse load introduction lever device. The rotary lever 40 is lifted upward by the one-way hinge shaft 23 by the support shaft 31 installed on the working lever 30 by upward force, and is provided on the lower side of the bridge girder or on both side surfaces of the bridge girder. When the upward force in the opposite direction to the gravity direction is introduced to the bridge girder to the installed support pedestal 50 and the tension is introduced to the wires 63 connected to the shackles 62, respectively, to assist in the opposite direction to the gravity direction. A reverse load introduction method for causing an upward force of is introduced into the bridge girders.

In addition, the through lever 32 is formed in the actuating lever 30 so that the upward force is applied by the lifting device 100 installed at the lower end of the actuating lever 30 so that the actuating lever 30 is lifted up. When the fixing lever (20, 25) is penetrated through the through hole 32 is characterized in that the working lever 30 is raised to cause the upward force.

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 load introduction lever device of the present invention, a fixed lever 20 integral to a support shaft 61 constituting a support 60 installed on a bridge or alternating bridges between bridge girders installed on the bridge or bridge. The other side of the rigid and the upper side of the one side of the integrated fixed lever 20 is formed to extend the extension portion 21 is slightly smaller, the one side of the integrated fixed lever 20 can rotate only in one direction. The rotary lever 40 which is smaller than the length of the extension part 21 of the fixing lever 20 is extended by the one-way hinge shaft 23, and then the working lever 30 is disposed on the lower side of the fixing lever 20. ), But the rotary lever 40 is on the upper side of the fixing portion 20 of the extension portion 21 of the fixed lever 20 and one end of the actuating lever 30 is connected to the connecting plate 22, the actuating lever 30 ) The lifting device 100 is installed on the pier or the bridge that is the lower side of the other side. And, the support shaft 31 is installed on the actuating lever 30 to be installed at a predetermined point between the rotary lever 40 and the one-way hinge shaft 23, the end of the rotary lever 40 After installing the support pedestal 50 in the plurality of shackles 62 at the lower end of the integrated fixed lever 20 at regular intervals, and also a plurality of shackles 62 on the support shaft 61. By connecting the wires 63 to the shackles 62 installed on the fixing lever 20, respectively, and then fixing the wires 63 to the shackles 62 on the support shaft 61 of the support 60. .

When the length of the rotary lever 40 is smaller than the length of one end of the extension portion 21 and the working lever 30 of the fixed lever 20 is installed the reverse load introduction lever device 10 between the girder. And to support the direct support by installing the support base 50 on the rotary lever 40 directly to the bottom of the girder,

The part connected to the connecting plate 22, which is one end of the actuating lever 30, is installed higher but the actuating lever 30 installed on the upper part of the lifting device 100 installed on the bridge or the bridge is installed downward. The gap between the fixed lever 20 fixed to the support shaft 61 is opened so that the actuation lever 30 is inclined so that upward force is applied by the lifting device installed at the lower end of the actuating lever. In this case, the moving lever has a longer moving distance so that a large amount of upward force can be generated at the working lever.

2 is a view showing the length of the rotation lever as an embodiment of the reverse load introduction lever device of FIG. 1, the description is omitted in the description of the present invention mentioned in detail in FIG. 1, but the rotation lever 40 The length of the fixed lever 20 is formed to protrude a predetermined length to the outside longer than the length of the one end of the extension portion 21 and the working lever 30 as shown in Figure 6 is a predetermined portion of the rotary lever The long lever 41 of a predetermined size is formed in a portion through which the connecting plate 22 connecting the fixing lever and the working lever to each other is formed so that the rotary lever 40 is lifted upward by the working lever 30. This is to form a long hole (41) so that the connecting plate 22 is not impeded when the connecting plate is smoothly moved in the long hole so that the rotary lever can be lifted up without any obstacle.

The fixed lever 20 of FIGS. 1 and 2 is integrated with a fixed lever using steel having various types of shapes such as H, L, and T beams in order to increase the shaft, shear, and flexural rigidity of the member. Utilized as

1 and 2, the installation position of the action lever is installed on the upper portion of the lifting device 100 installed on the pier or bridge, the portion connected to the connecting plate 22, which is one end of the action lever is installed higher 30 is installed downward to allow the gap between the fixed lever 20 fixed to the support shaft 61 to be opened so that the working lever is inclined in the end by the lifting device installed at the lower end of the other lever When the upward force is applied to adjust the distance between the fixed lever and the actuating lever so as to adjust the upward force as designed in advance on the actuating lever (30) to move the movement distance as much as you want.

In addition, when the length of the rotary lever 40 is lengthened, the reverse load introduction lever device 10 is installed between the bridge girders, and the support pedestal 50 is disposed on the rotary lever 40 at both lower sides of the adjacent bridge girders. It is to be installed in the support.

Figure 3 is a view showing a reverse load introduction lever device which is another embodiment of the present invention, the material 27 on the support shaft 61 of the support 60 installed on the bridge or the bridge between the bridge girders installed on the bridge or bridge piers And the other side of the upper and lower fixing levers connecting the upper and lower fixing levers 24 and 25 in the truss shape with the vertical member 26, and forms an extension part 21 extending a predetermined length from one side of the upper fixing lever. One side of the lower fixing lever 25 extends the rotary lever 40 having various lengths by the one-way hinge shaft 23 which can rotate only in one direction, and then on the lower side of the lower fixing lever 25. While installing the actuating lever 30, a lifting device 100 is installed at the lower side of the actuating lever 30, and one end of the extension part 21 and the actuating lever 30 is connected to the connecting plate 22. While installing the support shaft 31 on the working lever (30) It is to be installed at a predetermined point between the rotary lever 40 and the one-way hinge shaft 23, and after the support base 50 is installed at the end of the rotary lever, a predetermined distance to the lower end of the lower fixing lever 25 While installing the plurality of shackles 62 and the plurality of shackles 62 are also installed on the support shaft 61 of the support 60 to connect the wires 63 to the shackle, respectively, and then the support of the support. The wire is fixed to the shackle installed on the shaft.

3 illustrates a case in which the length of the rotary lever 40 is smaller than the length of the extension 21 of the upper fixed lever 24 and the one end of the working lever 30, and the reverse load introduction lever between the bridge girders. In order to install the device 10 and directly supporting the support base 50 on the rotary lever 40 to the lower part of the girder,

The part connected to the connecting plate 22, which is one end of the actuating lever 30, is installed higher than the height of the fixed lever 24 connected to the connecting plate, but the upper part of the lifting device 100 installed on the pier or the bridge. The actuating lever 30 to be installed is installed downward to allow the gap between the fixed levers 24 and 25 fixed to the support shaft 61 to be widened, so that the actuating lever 30 is inclined to be installed. When the upward force is applied by the lifting device 100 installed in the lower portion of the side end is to move the working lever is longer, so that a large amount of upward force can be generated on the action lever.

4 is a view showing the length of the rotation lever as another embodiment of the reverse load introduction lever device of FIG. 3, which will be omitted in the description of the present invention by referring to FIG. 3 in detail, but the rotation lever 40 The length of the upper fixing lever 24 is formed to protrude a predetermined length to the outside longer than the length of the one end of the extension portion 21 and the working lever 30 as shown in Figure 6 the rotary lever 40 A long hole 41 having a predetermined size is formed at a predetermined portion of the fixing lever so as to pass through the connecting plate 22 penetrating while connecting the extension part 21 and the working lever 30 of the fixing lever to the working lever 30. By forming a long hole so that the connecting lever 22 is not obstructed when the rotary lever 40 is raised upwards so that the connecting lever smoothly moves in the long hole so that the rotary lever can be lifted up without any obstacle. This is for.

3 and this fixed lever is used as a fixed lever by connecting the steel separated by the upper and lower fixed levers (24, 25) in the shape of the truss with the vertical member 26 and the yarn 27, When the individual member is connected to the truss shape than when integrated, the weight of the member can be reduced, so that steels having various types of shapes such as H, L, and T-beams are connected to each other and used as fixed levers.

In addition, this figure is to increase the length of the rotary lever 40, the reverse load introduction lever device 10 is installed between the bridge girders and the support pedestal 50 on the rotary lever 40 of the adjacent bridge girders This is to install and support on both sides of the lower part.

The part connected to the connecting plate 22, which is one end of the actuating lever 30, is installed higher but the actuating lever 30 installed on the upper part of the lifting device 100 installed on the bridge or the bridge is installed downward. The gap between the fixed lever fixed to the support shaft 61 is opened so that the actuating lever is inclined so that the upward force is applied by the lifting device installed at the lower end of the other end of the actuating lever 30. This is to adjust the distance between the fixed lever and the actuating lever so as to adjust the upward force as designed by the actuating lever.

5 is a view showing that the through-hole is formed in the actuating lever of the present invention, as another embodiment of the actuating lever 30 implemented in FIGS. 1 to 4 as an actuating lever (FIG. 1 to 4) 30) using the steel as a whole as a whole to be installed a certain distance away from the lifting device 100 and the fixed levers (20, 25) installed on the lower end of the other end of the lever to be applied upward force by the lifting device When the working lever 30 is moved by a certain distance when the upward force is introduced, whereas the through-hole 32 having a size through which the fixed levers 20 and 25 can penetrate the body of the working lever of FIG. The actuating lever 30 is formed by installing the actuating lever 30 without having a gap in the lower portion where the fixing levers 20 and 25 are installed, and then generating an upward force on the lifting device installed under the other end of the actuating lever. This is to allow the fixing lever to move upward through the through hole 32 to move upward force to the actuating lever when moving upward.

When the upward force introduced to the action lever moving upward by the upward force generated by the action lever 30 is further required, the outer end of the hinge portion connected to the connecting plate 22 at one end of the action lever By bending the upper portion to a certain height to move further upward by the height of the bent upward when the working lever 30 is moved upwards can be introduced further upward force.

Figure 6a, b is a view showing a one-way hinge axis connecting the lower fixed lever or the fixed lever and the rotary lever of the present invention, in the case of the fixed lever 20 produced in one piece is installed on the lower end of one side of the fixed lever In the case of the assembled fixed lever connecting the upper and lower fixing levers 24 and 25 to each other, it is installed at one end of the lower fixing lever 25, and the one-way hinge at the lower end of one side of the fixing levers 20 and 25. The shaft 23 is connected to the rotary lever 40 is installed in a variety of lengths.

FIG. A shows the rotary lever 40 formed to protrude outwards longer than the length of one end of the fixed lever 21 and the working lever 40. As shown in FIGS. A 41 is formed to allow the connecting plate 22 to connect the fixed lever and the working lever to each other.

In this figure, the description of the rotary lever mentioned in FIGS. 1 and 3, which is another embodiment of the rotary lever, is omitted. However, when the length of the rotary lever is short, the support pedestal is formed on the end side of the rotary lever without forming a separate hollow. Installation is the same as the case of the rotary lever of FIG.

Figure b relates to the one-way hinge shaft 23 connecting the fixed levers 20 and 25 and the rotary lever 40 to each other, the rotation axis is to be able to move only in one direction, which is generally used for doors As a hinge, the rotary lever receives the upward force of the actuating lever and moves only upward when it moves upward. An important device for allowing the hinge axis to be a two-row lever It is

The one-way hinge shaft 23 is used in all the devices of FIGS. 1 to 4 and 5. Figure 7 is a view showing the connection of the upper fixed lever or the extension of the fixed lever and one side end of the working lever of the present invention with a connecting plate, one side of the integrated fixed lever 20 and the assembled fixed lever (24, 25) One end of the extension portion 21 and the working lever 30 extending from the upper end is connected to each other by the connecting plate 22. At this time, connecting the extension portion 21 and the connecting plate 22 extending from one end of the upper side of the fixing levers 20 and 24 is to connect to each other as a bolt or welding connection to fix the rigid connection to the rigid body, on the contrary The connecting plate 22 connected to one side end of the 30 is connected to the fixing pin 28 as shown in FIG. 8, but the fixing pin 28 and the action lever 30 and the connecting plate 22 are in contact with the washer ( 29) is installed and connected to the working lever through which the body of the fixing pin 28 and the through hole of the connecting plate to have a clearance 33 to maintain a constant gap, the clearance between the actuation lever induced upward force In order to move the rotation lever upward, the working lever is to be able to move within a certain range.

The same applies to the case where the actuating lever 30 having the through holes 32 of FIGS. 1 to 4 and 5 is used.

FIG. 8 is a view illustrating a state in which the actuating lever and the connecting plate of FIG. 7 are hinged to each other by a fixing pin, which is already described in detail with reference to FIG.

9 is a view showing a support pedestal is installed on the rotary lever of the present invention, this figure is for explaining the general support pedestal 50, the support plate 53 is installed on the rotary lever 40 and the elastic pad thereon The 51 and the guide (52) made of steel is to be installed so as to act as a departure prevention device that can prevent the elastic pad from falling off.

The elastic pad may be provided with a separate bearing support to cope with changes in the amount of stretching of the girder at the bottom of the girder as needed above.

FIG. 10 is a view showing a case in which the pedestal of FIG. 9 is directly supported on the lower portion of the bridge girder, and the short rotating lever 40 is used by using the operation lever 30 mentioned in FIGS. 1 and 3 and 5. In the case of use, the "L" type extension part 54 is used in the support base 50 provided in the end side of the rotating lever 40 of the reverse load introduction lever device 10 provided between the bridge girders. An extension of the "L" type extension part 54 is installed in the lower part of the bridge girder so as to directly support the bridge girder.

FIG. 11 is a view showing a case in which the support base of FIG. 9 is installed and supported on the lower side of the bridge girder, using the action levers mentioned in FIGS. 2 and 4 and 5 but having a long rotary lever ( In the case of using 40, the " L " extension portion 55 is provided in the support base 50 provided on the end side of the rotary lever 40 of the reverse load introduction lever device 10 provided between the bridge girders. It is to install and support the extension portion provided with the elastic pad 51 on the lower side of the bridge girders installed adjacently using the "d" type extension portion 55, that is, on both sides of the support plate The installed support pedestal is to be installed and supported at the bottom of both sides of the adjacent bridge girders at the same time.

12A and 12B are views showing a support for supporting a reverse load introduction lever device of a present invention at a bridge or alternator, wherein the reverse load introduction lever device 10 is installed on bridges or shifts between bridge girders provided adjacent to the bridge or bridge. ) Is installed to support the fixed lever (20, 24, 25) connected to the intermediate portion of the support shaft 61 and the fixed lever by the shackle 62 is provided in the upper end of the support shaft 61 The support shaft 61 in the case where the reverse load introduction lever device 10 in which the pair of wires 63 connected to the ring of the plurality of shackles 62 installed at the lower end of the pair is installed or installed in opposite directions at one place is installed. The wire 63 may be passed through the hook of the shackle 62 installed at the upper end to fix the wire to the hook of the shackle installed in the reverse load introduction lever device 10 installed at one side. .

In order to protect the plurality of shackles 62 installed on the upper end of the support shaft, the shackle protection cap can be put on to prevent corrosion.

In addition, an elevating device 100 is installed at an adjacent portion of the lower end of the support shaft so as to provide an upward force to the action lever 30.

The support 60 is for supporting the reverse load introduction lever device 10, which is a structure that requires a very strong support force that must support the upward force introduced to the device and also a part of the load acting on the bridge girder. As a result, they are assembled in the form of trusses.

So far, the configuration of the reverse load introduction lever device 10 has been described in detail, and the method of installing the device between the bridge girders of the bridge to apply the load in the direction opposite to the gravity direction to the bridge girders is as follows. same.

First, a) arranging the upper surface of the piers or shifts installed adjacent to the piers or shifts;

b) installing a plurality of shackles 62 at the upper end of the support shaft 61 while installing the support 60 on the arranged surface;

c) A plurality of shackles are provided at regular intervals on the lower side of the fixed lever while firmly connecting the other end of the fixed lever of the reverse load introduction lever device 10 to the middle of the support shaft 61 of the support 60. Installing;

d) forming an extension portion 21 extending from the upper end of one side of the fixed lever 20 and installing the actuating lever 30 at the lower portion of the fixed lever 20 while adjoining the support 60; Installing a lifting device 100 at a lower portion thereof;

e) connecting the extension part 21 of the fixed lever and one end of the fixed lever with a connecting plate 22;

f) The actuating lever 30 installs the rotary lever 40 with the one-way hinge shaft 23 at the lower end of one side end of the fixed lever 20 and installs the support pedestal 50 at the end side of the rotary lever. Installing a support shaft (31) on the top;

g) While introducing the upward force to the actuating lever 30 to the lifting device 100 by introducing the upward force to the rotary lever 40 by the one-way rotary shaft 23 and the support shaft 31 to the rotary lever 40 Introducing a load in a direction opposite to the direction of gravity to the bridge girders by introducing an upward force to the installed support pedestal 50;

h) the wire 63 is installed through the ring of the shackle 62 installed at the upper end of the fixing lever 20 and the support shaft 61, and then a tensile force is introduced to the wire 63 to be installed on the support shaft 61. Securing to the shackle 62;

I) When the process of the above step is completed, it is made of a step that can utilize the bridge to clean up the surroundings while rust preventive treatment to all the devices.

Looking at using a different embodiment than the case of the above implementation is as follows.

In the step g), the length of the rotation lever 40 is short, and in another embodiment, the rotation lever is longer than the length of one end of the extension part 21 and the action lever 30 of the fixed lever, and thus a predetermined length to the outside. In this case, as shown in FIG. 6A, a long hole 41 is formed so that the connecting plate 22 penetrates to allow the rotation lever 40 to freely move.

In addition, when the length of the rotary lever 40 is short, as shown in FIG. 10, the "L-shaped extension part 54 is extended from the support base 50 so as to be installed in the lower part of the bridge girder, and as shown in FIG. If so, the "d" type extension part 55 is extended to be installed at both lower sides of the bridge girder.

When connecting the extension part 21 of the fixed lever and the one end of the action lever 30 in the step e) with the connecting plate 22, as shown in Figures 7 and 8, the fixed lever and the connecting plate is firmly bolted or When the welding connection is made, and the actuating lever 30 and the connecting plate 22 are connected, the fixing pin 28 forms a gap 33 having a predetermined size in a portion through which the actuating lever and the connecting plate penetrate the actuating lever 30. To allow operation within a certain range.

The one-way hinge shaft 23 of step f) is installed to rotate only one side as shown in b of FIG.

As shown in FIG. 5, the actuating lever 30 is provided with a through-hole 32 in the body of the actuating lever 30 to allow the fixing levers 20 and 25 to pass therethrough. When the movable lever moves upward, the fixing lever penetrates the through hole 32 so that the working lever does not interfere with the upward movement.

The lifting device 100 to apply an upward force to the action lever uses a device such as a screw jack or a hydraulic jack.

All the components constituting the reverse load introduction lever device 10 such as the fixing lever 20, 24, 25, the working lever 30 and the rotating lever 40 and the support 60 are made of steel. The shape of the steel can be produced using various types of steel, such as H-type, L-type, c-type, ㅁ type. In particular, the rotary lever 40 can be produced by selecting a steel material having a very good elastic force.

The actuating lever 30 is generally manufactured in a wired or straight shape, and the other end is operated by upward direction by the generation of the upward force and then welded or bolted at a constant height so that the upward force can be continuously maintained. Fix it.

The elastic pad 51 may be made of a material such as synthetic rubber and fluorocarbon resin (PTFE) and a rigid iron plate depending on the situation of the site.

In addition, all kinds of materials used in the reverse load introduction lever device 10 may be configured not only with the steel but also with materials using non-metallic materials such as carbon fiber and glass reinforced fiber. As another method, it is also known that the above-described apparatus may be manufactured by mixing the metal material with the non-metal material.

The present invention is a device manufactured to be applicable to a variety of new bridges, temporary bridges and aging bridges by installing the device to introduce the upward force to the bridge girders installed in the various bridges to raise the upward force generated from the working lever By introducing the upward force to the bridge girders, by reducing the cross-sectional forces such as static, parent, shear force, etc. generated in the bridge structure using all kinds of girders, it is possible to reduce the height of the bridge girders made by various conventional methods It can reduce the use of expensive materials such as steel and reduce the size of the bridge girder, thereby reducing the load delivered to the bridge substructure, which can reduce the size and the number of supporting capacity, bridge and foundation. The construction cost of the overall bridge construction can be greatly reduced, and due to the reduced sectional force It is possible to improve the durability of the bridge structure by reducing the stress on the bridge structure. Also, when the load capacity of the bridge is reduced due to aging and the reinforcement is required to reinforce the load capacity, the device is simply installed on the bridge girder. The load capacity is simply reinforced by introducing upward compressive force, and even if additional load capacity reinforcement work is needed in the future, the above installed equipment is very easy to perform repair and reinforcement, and it is repaired instead of dismantling old bridges. By extending the service life of the bridge, it is possible to greatly reduce the generation of waste materials generated during demolition, which is an environmentally friendly construction method.

In addition, in the case of steel bridges, the construction of high strength anchorages on the side, upper, and lower flanges of the abdomen in the construction of new construction, maintenance, and bridge construction and attaching psc steel to introduce strong tension in very short time And because the thickness of the upper and lower flange members is very thin, the tension force of the high tension force as described above leads to the impact load, which firstly causes the buckling phenomenon of the abdominal member and the upper and lower flanges, and thereafter, secondary stress such as residual stress. While the construction method is very unfavorable to the bridge, such as causing a large number of elastic support points installed in the lower portion of the bridge girder to support the target structure to support a large portion of the bridge girders to solve the problem of the prior art It is a very useful method to do.

Claims (17)

For the installation of bridges, a plurality of bridges and bridges in the longitudinal and lateral directions are installed to support bridges and bridges between bridge girders to form bridges. Reverse load introduction lever device that introduces the load in the direction opposite to the direction of gravity to the bridge girder by using the double lever principle and the wire to the lever system composed of the fixed lever, the rotating lever and the actuating lever. . The method of claim 1, The reverse load introduction lever device tightens the other side of the fixed lever integrated into the support shaft constituting the support between the bridges or bridge girders installed on the bridge or alternating shaft, and the width is somewhat wider on the upper side of one side of the integrated fixed lever. A small extension part is formed, and a lower side of the integrated fixed lever is extended by a one-way hinge shaft to extend the rotating lever smaller than the length of the extended part of the fixed lever, and then a working lever is installed on the lower side of the fixed lever. Connect the extension end of the fixed lever and one end of the actuating lever with a connecting plate while the rotary lever is on the upper side, and install a lifting device on the pier or the cross-section of the lower part of the actuating lever and install the support shaft on the actuating lever. To be installed at a point between the rotary lever and one-way hinge shaft, After installing the support base at the end of the rotary lever, install a plurality of shackles on the lower end of the integrated fixed lever at regular intervals, and also install a plurality of shackles on the support shaft to wire the shackle installed on the fixed lever. A reverse load introduction lever device for introducing a load in a direction opposite to the direction of gravity to a bridge girder by using a double lever principle and a wire in a lever system consisting of a fixed lever, a rotating lever, and an action lever. The method according to claim 1 or 2, The support is connected to the support shaft and the support shaft in a truss shape, and a plurality of shackles are installed on the upper end of the support shaft, and the fixing lever of the reverse load introduction lever device is firmly connected to the middle part to pier the reverse load introduction lever device. Introduces the reverse load which introduces the load in the opposite direction of gravity to the bridge girder by using the double lever principle and wires in the lever system which consists of the fixed lever, the rotating lever and the actuating lever. Lever device. The method of claim 2, The fixed lever is a lever lever composed of a fixed lever, a rotary lever and an actuating lever, which is characterized in that it is a prefabricated fixed lever connected up and down in a truss shape by using vertical materials and yarns. A reverse load introduction lever device for introducing a load in a direction opposite to the gravity direction to a bridge girder using a wire. The method according to claim 2 or 4, The actuating lever bridges the load in the direction opposite to the gravity direction by using a double lever principle and a wire in a lever system composed of a fixed lever, a rotating lever, and an actuating lever. Reverse load introduction lever device to be introduced into. The method of claim 2, The rotating lever is a lever consisting of a fixed lever, a rotating lever and an actuating lever, which is connected to one end of the fixed lever by a one-way hinge shaft, and has a support pedestal installed at one end of the rotating lever to support the lower portion of the bridge girder. Reverse load introduction lever device that introduces the opposite direction of gravity to the bridge girders using the double lever principle and wires in the system. The method according to claim 2 or 6, The length of the rotary lever is longer than the extension of the fixed lever and the length of one side end of the fixed lever protruding a predetermined length to the outside formed in the lever system consisting of a fixed lever, a rotary lever and an actuating lever. Reverse load introduction lever device for introducing a load in the direction opposite to the direction of gravity to the bridge girders by using a wire. The method according to claim 2 or 6,      A long lever is formed on one side of the rotary lever to allow the connecting plate to penetrate, and a lever lever consisting of a fixed lever, a rotating lever, and an operating lever is characterized in that a support base is installed on an outer side where the long hole is formed. Reverse load introduction lever device for introducing a load in the direction opposite to the direction of gravity to the bridge girders. The method of claim 2,      The connecting plate is opposed to the direction of gravity by using a double lever principle and a wire in a lever system composed of a fixed lever, a rotating lever, and an actuating lever. Reverse load introduction lever device for introducing a load in a direction to a bridge girder. The method of claim 9,      The connection with one end of the extension lever is a rigid connection made by bolts or welding, while the connection with one end of the actuating lever is a hole formed in the actuating lever and the connecting plate to be somewhat larger than the diameter of the fixing pin so that the fixing pin is inserted. The lever system is composed of a fixed lever, a rotating lever, and an actuating lever, which is characterized by allowing the actuating lever to move within a certain range due to the flow of oil at regular intervals even though it is fixed. Reverse load introduction lever device for introducing the opposite load to the bridge girders. The method of claim 2,      The actuating lever is installed in the lower part of the fixed lever but is installed on the same line as the fixed lever. The lever lever is composed of a fixed lever, a rotating lever, and an actuating lever. Reverse load introduction lever device for introducing a load into the bridge girder. The method of claim 2, The actuating lever is installed at a portion connected to the connecting plate, which is one end of the actuating lever higher, but the actuating lever installed on the upper part of the ascending device installed on the pier or the bridge is installed downward and fixed to the support shaft. The lever system consisting of the fixed lever, the rotating lever and the actuating lever is characterized by being inclined so as to be spaced apart so that the load in the direction opposite to the gravity direction can be introduced to the bridge girders using the double lever principle and the wire. Reverse load introduction lever device. The method of claim 2,      The support pedestal uses a double lever principle and a wire in a lever system composed of a fixed lever, a rotating lever, and an actuating lever, characterized in that an elastic pad is installed on a support plate and a guide is installed around the support plate. Reverse load introduction lever device for introducing loads to bridge girders. The method according to any one of claims 2, 6 and 13,      The support pedestal is installed at one end of the rotary lever to support the lower portion of the bridge girder by using the "L" type extension, and when using the "L" type extension, it is installed on both lower sides of the adjacent bridge girders A reverse load introduction lever device for introducing a load in a direction opposite to the direction of gravity to a bridge girder by using a double lever principle and a wire in a lever system comprising a fixed lever, a rotating lever, and an actuating lever. a) arranging the upper face of the piers or shifts installed adjacent to the piers or shifts; b) installing a plurality of shackles on the upper end of the support shaft while installing the support on the arranged surface; c) installing a plurality of shackles at regular intervals on the lower side of the fixed lever while firmly connecting the other end of the fixed lever of the reverse load introduction lever device to the middle of the support shaft; d) forming an extension part extending from an upper end of one side of the fixing lever and installing a lifting device below the working lever while installing the working lever at the bottom of the fixing lever; e) connecting the extension part of the fixed lever and one end of the fixed lever with a connecting plate; f) installing a supporting shaft on the working lever while installing a rotary lever with a one-way hinge shaft as a connecting portion at the lower end of the fixed lever and installing a support base on the end side of the rotary lever;      g) Introducing upward force to the support lever installed on the rotary lever by introducing upward force to the lever by the one-way rotary shaft and the support shaft while introducing upward force to the actuating lever. Introducing a load;      h) penetrating the wire through the ring of the shackle installed on the upper end of the fixed lever and the support shaft and then introducing a tensile force to the wire to fix it to the shackle installed on the support shaft;      I) When the process of the above step is completed in the lever system consisting of a fixed lever, a rotating lever and a working lever, characterized in that the bridge is made so that the bridge can be utilized to clean up the surroundings while rust prevention treatment on all the devices A reverse load introduction method using a reverse load introduction lever device that introduces a load in a direction opposite to the gravity direction to a bridge girder using a lever principle and a wire. The method of claim 15,      In the step e), if the extension part of the fixed lever and one end of the actuating lever are connected by a connecting plate, the bolt or weld connection is made firmly, and when the actuating lever and the connecting plate are connected, the fixing pin is connected to the actuating lever and the connecting plate. The lever system consisting of a fixed lever, a rotating lever, and an actuating lever, which is characterized by forming a constant sized gap in the penetrating portion, uses a double lever principle and a wire to introduce loads in the direction opposite to the direction of gravity to the bridge girders. Reverse load introduction method using a reverse load introduction lever device.         The method of claim 15,        In the step c), when the reverse load introduction lever devices are installed in pairs in opposite directions with respect to the supports installed on the piers and shifts, the reverse load introduction lever devices installed on one side by passing a wire through the ring of the shackle installed at the upper end of the support shaft. The lever system consisting of a fixed lever, a rotating lever, and an actuating lever, which is characterized by fastening the wire to the hook of the shackle installed in the shaft, uses the double lever principle and the wire to introduce the load in the opposite direction to the bridge girder. Reverse load introduction method using reverse load introduction lever device.

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