KR200332005Y1 - Joint connecting apparatus for absorbing different expansion and contraction each other with installed at the connecting point between new bridge - Google Patents

Abstract

The present invention is designed to allow the bridges with different deflection and extension sides to be side by side, or between bridges or bridges with different girder materials, or bridges with different fixed points, activity points, and bridge lengths. When the connection is made, the connecting connection part is made of different materials, or the length of the support and the type of support point are different, so there is a difference in the amount of longitudinal expansion and displacement, and the connecting device installed in the connection connection is dropped or protruded. In order to prevent the vehicle from passing through the connection, the ride comfort is reduced or the connection of the vehicle is damaged due to the impact load of the vehicle's lubrication load. Longitudinal and vertical directions by installing one joint Installation of connecting joints that can absorb the displacement and improve the connection joint state of bridge connection to improve the ride comfort of the passing vehicle of bridge, and to prolong the durability of bridge by appropriately responding to various displacements generated in bridge Provide a method.

Description

Joint connecting apparatus for absorbing different expansion and contraction each other with installed at the connecting point between new bridge}

The present invention is to install the connection joints in the bridge connecting the bridge and the bridge generated by the different stretching of the old and new bridges to absorb the displacement in the longitudinal and vertical direction to improve the connection joint state of the bridge connection Therefore, the present invention relates to a method of installing a connection joint device which can extend the durability of the bridge by appropriately responding to various displacements generated in the bridge while improving the riding comfort of the passing vehicle of the connection connecting portion.

The connecting joint device forms an upper support flange protruding on both sides in the longitudinal direction of the unit connecting panel made of steel, and installs a vertical plate of a predetermined height on both sides of the width direction, An elastic pad of a certain size is attached to the lower surface of the upper flange, and rubber sheets are attached to four sides of the unit connection panel, and a plurality of grooves are provided at both ends in the width direction, and hooks are provided in the grooves. Later, a plurality of long holes are formed in the longitudinal direction of one side, and the grooves of the long holes are formed to be formed in the width direction,

When the unit connecting panel is installed in the longitudinal direction along the connecting connection of the old and new bridges, the lower support flange is formed so that the lower part of the girder protrudes on one side of the girder so that the upper support flange is mounted on one side of the girder installed on both sides. The unit connection panel is installed on the lower support flange to install the connecting joint device, and then the ascon is installed in the vertical plate formed to fit the height of the pavement surface of the adjacent new bridge. It is the installation method of connecting joint device to be installed to be connected flexibly. The concept of this installation method is to install the connecting device between the bridge girders so that a small bridge is installed between the girder of the connecting connection of the old and new bridges, and thus the relative vertical deflection or longitudinal extension movement of the bridge occurs. The elastic pad attached to the unit connection panel is absorbed by the elastic deformation so as to correspond to the stretching action or the vertical deformation.

In addition, even if the relative deflection of the old and new bridges that can not use the existing expansion joints can be used in the connection joint device of the present invention.

Because, even if the step difference occurs because the deflection between the old and new bridges is different due to the unit connection panel installed with fixed bolts only on the new bridges, when the fixed bolts are fixed to the girders of the new bridges by fixing bolts to the long holes installed only on one side of the connecting bridges, This is because it can flexibly respond to the amount of stretch that is generated.

The purpose of the present invention is to connect the old and new bridges with each other, so that the amount of expansion and contraction generated at the connection connection part is absorbed by the connection joint device installed at the connection connection part as the impact load of the vehicle driving the connection part while improving the ride comfort of the vehicle. This is to reduce the labor cost and administrative cost of the bridge maintenance and maintenance while extending the service life of the bridge by preventing the connection part from being destroyed.

Conventionally, a steel plate is installed in a connecting connection portion where a bridge and a bridge are connected to each other by a new extension bridge of a new bridge, or a expansion joint device in which elastic pads are inserted in a portion where an old bridge meets each other, but the amount of expansion is different. The steel plate installed at the connection part is separated or protruded to impair the ride feeling of the vehicle passing through the connection part, and the connection part is damaged by the impact load of the passing vehicle, so that the bridge is broken and frequent maintenance work is performed or between the connection parts. There has been a problem in that a situation where the operation of the vehicle is very dangerous and opens.

The present invention is proposed to improve the above problems, bridges by installing a joint connection device consisting of a unit connection panel that can absorb displacement generated in the longitudinal direction and the vertical direction in the connecting connection portion generated by the new bridge is connected to each other It protects the connection connection of the bridge and absorbs the displacement generated in the bridge to prevent the stress caused by the displacement on the bridge, and improves the riding comfort of the running vehicle and protects the connection connection of the bridge from the impact load of the bridge. The present invention provides a method of installing a jointed joint device which can reduce the labor and management costs required for the maintenance and management of the bridge by preventing the destruction and extending the service life of the bridge.

Figure 1 (a) (b) is a view showing an example of the connection connecting portion is installed connection device of the present invention.

Figure 2 is a view showing that the connection joint device of the present invention is installed in the connection connection of the old and new bridges.

Figure 3 is a view showing an A-A cross section of the connection joint device installed in the connection connecting portion of the bridge in FIG.

Figure 4 is a view showing a cross-sectional view B-B of the connecting joint device installed in the connecting portion of the bridge in FIG.

5 is a view showing in detail the elastic pad of the present invention.

6 is a view showing a fixing bolt of the present invention.

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

10; Old bridge 11; Girder

12; Pier 13; Packing cotton

20; New bridge

30; Connection

40; Connection

50; Unit connection panel 51; Vertical

52; Upper support flange 53; Rubber sheet

54; Lower support flange 55; Hook

56; Major 57; home

60; Elastic pad 61; Elastomer

62; Iron plate or wire 63; Base plate

64; Connecting plate 65; Bolted joint

70; Fixing bolt 71; nut

72; Bolt 73; stopper

The present invention forms the upper support flange 52 protruding on both sides in the longitudinal direction of the unit connecting panel 50 made of a steel plate and the vertical plate 51 of a predetermined height on both sides in the width direction, the unit While attaching and installing elastic pads 60 of a predetermined size on the lower surface of the upper support flange 52 of the four corners of the connecting panel, and attaching and installing the rubber sheet 53 on the four sides of the unit connecting panel 50. After the plural grooves 57 are installed at both sides in the width direction, and the hook 55 is installed in the groove 57, a plurality of long holes are formed in one longitudinal direction, but the grooves of the long holes 56 are formed in the width direction. The unit connection panel 50 is manufactured,

When the unit connecting panel 50 is installed in the longitudinal direction along the connection connecting the old and new bridges to each other, the upper support flange 52 is mounted on one side of the girder 11 installed on both sides of the girder 11 After forming the lower support flange 54 so that the lower portion of the girder 11 protrudes on one side, the unit connection panel 50 is seated and installed on the lower support flange 54 to install the connection joint device 40. Pavement surface of the new and old bridges (10, 20) by placing an ascon pavement (13) by placing ascone in the vertical plate 51 formed to match the height of the pavement surface (13) of the adjacent old and new bridges (10, 20) 13) is characterized in that the installation method of the connection joint device 40 to be installed to be connected flexibly.

Using the unit connection panel 50 is installed in the connection connecting portion 30 of the bridge is as follows.

a) installing new and old bridges 10 and 20 in contact with each other to form a connection connection part 30;

b) anchoring the fixing bolt 70 while cutting the upper part on the side of the girder 11 of the adjacent bridge of the connecting connection part 30 and forming the lower support flange 54 protruding from the lower part.

c) forming an upper support flange 52 having an upper protrusion on both sides of the box-shaped panel 50 made of steel plate and adhering a predetermined size elastic pad 60 to the lower part of the four corners of the box-shaped panel 50. Forming a unit connection panel 50;

d) attaching and installing a rubber sheet 53 on four side surfaces of the unit connection panel 50;

e) The unit connecting panel 50 is seated on the lower support flange 54 and fixedly installed in a plurality of long holes 56 installed in the longitudinal direction of the unit connecting panel 50 using the fixing bolt 70. Completing the installation of the connection joint device 40;

f) paving the ascon more than the height of the vertical plate 51 of a certain height installed in the longitudinal direction on the upper portion of the connection joint device 40 so as to be smoothly connected to the pavement surface 13 of the adjacent bridge; And

g) it is characterized in that the step between the rubber sheet 53 and the old and new bridges (10, 20) girders (11) and between the unit connecting panel 50 to be in close contact.

If described in detail by the accompanying drawings the configuration and operation of the subject innovation as follows.

Figure 1 (a) (b) is a view showing an example of the connection connecting portion is installed connection device of the present invention, the new bridge (10, 20) while installing a separate new bridge 20 to the existing bridge (10) The connection connecting portion 30 is formed so that the vehicle can pass through the connection connection between the two. (a) shows the connecting connection part of the bridge which is newly installed in a curve on the side of the old bridge, and (b) shows the connecting connection part while installing the new bridge of another straight line on the side of the old bridge. To show what is forming.

The existing bridge 10 is made of a steel box girder, for example, the new bridge 20 is connected to the side of the existing bridge (10) installed and connected to each other when the girder (PC) concrete girder bridge made of 11) the displacement amount in the vertical direction and the displacement amount and the non-spacing displacement amount generated in the vertical direction are different from each other, so that the connection connection parts are generated at high and low levels, so that the connection devices installed in the connection connection part 30 are dropped or distorted. The phenomenon occurs. In addition, even if the length of the bridge where the bridge 12 is installed and the type of the point where the bridge 12 of the existing bridge 10 is installed is different from the type of the length of the bridge where the bridge 12 is installed, various displacements are also generated. Since it cannot be absorbed, the connection connecting portion 30 frequently causes an impact load caused by excessive stress and impact of the vehicle to cause the bridge to be broken by fatigue.

By installing the connection joint device 40 according to the present invention to the connection connection portion 30 is to reduce or prevent the adverse effect on the bridge as described above.

2 is a view showing that the connection joint device of the present invention is installed in the connection connecting portion of the old and new bridges, the upper support flange 52 protruding on both sides in the longitudinal direction of the unit connection panel 50 made of steel And while installing a vertical plate 51 of a certain height on the upper side of both sides in the longitudinal direction, the elastic pad 60 of a predetermined size is attached to the lower surface of the upper flange 52 of the four corner portions of the unit connecting panel and the unit After the rubber sheet 53 is attached to four sides of the connecting panel 50 in a lateral direction, the plurality of grooves 57 are provided on both sides in the width direction, and the hooks 55 are provided in the grooves 57. To form a plurality of long holes in the longitudinal direction of one side, the grooves of the long hole 56 to produce a unit connection panel 50 to be formed in the width direction,

One side of the girder 11 so that the upper support flange 52 is mounted on one side of the girder 11 installed on both sides when the unit connecting panel 50 is installed in the longitudinal direction along the connecting connection portion where the old and new bridges are in contact with each other. The lower support flange 54 is formed so that the lower part of the girder protrudes, and the unit connection panel 50 is seated and installed on the lower support flange 54 to install the connection joint device 40.

After installing the connecting joint device 40, the ascon is placed in the vertical plate 51 formed to fit the height of the paving surface 13 of the adjacent old and new bridges 10 and 20, and the paving surface 13 is installed. To be installed to be connected flexibly with the pavement surface 13 of the old and new bridges (10, 20).

The rubber sheet 53 attached to the entire corners of the unit connecting panel 50 is installed between the old and new bridges 10 and 20 to be in contact with one side of the girder 11 while being connected to each other. This is to prevent water from being leaked between the connection joint device 40 and the girder 11 and to be corroded while offsetting the displacement generated in the pavement surface 13.

In addition, a plurality of long holes are installed in the longitudinal direction of one side of the unit connection panel 50, but the grooves of the long holes 56 are installed in the width direction and the bolts 72 anchored on the upper part of the lower support flange 54 are provided. The fixing bolt 70 is fixed to the upper part of the stopper 73 installed at regular intervals on the upper part of the bolt 72 while penetrating the long hole 56 by the nut 71. The bolt 72 and the stopper 73 installed in the long hole 56 such that the long hole 56 of a predetermined length is formed in the width direction so as to elastically correspond to the vertical displacement generated in the connection connection part 30. This is to be able to behave while having a certain range in the long hole (56).

On the other hand, the elastic pad 60 is attached to the lower portion of the upper support flange 52 and installed on the upper surface of the lower support flange 54 to correspond to the vertical displacement amount and the longitudinal displacement acting on the unit connection panel 50 Install.

The unit connection panel 50 is installed on the connection connection part 30 to mount the connection joint device 40 such that the girder 11 of the old and new bridges 10 and 20 cannot be installed with the existing expansion joint. Since the amount of expansion and support of each bridge is different, there is a difference in the amount of displacement, so that even if an existing expansion joint is installed, the bridge connection connection part 30 may be damaged due to being unable to absorb various displacements generated by the bridge. In the case where the riding comfort of the vehicle cannot be improved, the connection joint device 40 of the present invention is installed.

The hook 55 is installed in a plurality of grooves 57 installed in the width direction of the upper portion of the unit connecting panel 50 by using the hook 55 when carrying it to install the unit connecting panel 50. It is intended to be used to carry and install, to carry out the repair and then to install the heavy equipment connected to the hook 55 in the future maintenance.

The long hole 56 formed in the unit connecting panel 50 is installed only in one side of the longitudinal direction of the unit connecting panel 50 by one side, that is, the fixed bolt 70 in the new or existing bridge (10, 20) In order to fix the unit connecting panel 50 and to prevent the unit connecting panel 50 from being constrained to the existing or new bridges 10 and 20 installed on the other side, the unit connecting panel 50 can respond to vertical displacement. And the upper part of the bolt 72 inserted into the long hole 56, the stopper 73 is installed at regular intervals in the lower portion of the nut 71 is connected to the unit according to the vertical displacement generated in the new bridge (20) This is to prevent the panel 50 from behaving more than a certain amount when the panel 50 behaves up and down.

Generally, the unit connection panel 50 has a width of 0.5 to 2 m and a length of 2 to 4 m, but the size thereof is changed by changing the size according to the displacement amount.

FIG. 3 is a cross-sectional view illustrating a cross section AA of a connection joint installed in a connection connecting portion of a bridge in FIG. 2, in which a plurality of unit connection panels are installed along a connection connecting portion in which the new bridge is in contact with each other. An elastic pad attached to the lower part of the four corner portions of the unit connection panel of the one is installed on the upper support flange of the lower girder.

4 is a cross-sectional view illustrating a BB cross section of a unit connection panel, which is a connection joint device installed in a connection connection portion of a bridge in FIG. 2, wherein the upper support flange 52 protrudes on both sides in the longitudinal direction of the unit connection panel 50 made of steel. ) And the vertical plate 51 having a predetermined height is installed on both sides of the longitudinal direction, the plurality of long holes 56 are formed in the longitudinal direction of one side, but the grooves of the long holes 56 are formed in the width direction. The unit connection panel 50 is installed on the upper side of the lower support flange formed on one side of the girder and fastened the fixing bolt anchored on the upper side of the lower support flange to the long hole.

5 is a view showing in detail the elastic pad of the present invention, a plurality of iron plates or wires 62 are installed in the middle of the elastic body 61, such as rubber, and the connecting plate 64 is an iron plate on top of the elastic body 61 It is an elastic pad 60 with a bolted joint 65 while installing the base plate 63 made of a steel plate material larger than the size of the elastic pad 60 thereon.

In order to install the elastic pad 60 in the lower portion of the upper support flange 52 of the four corner portions of the unit connecting panel 50, the outer portion of the base plate 63 and the unit connecting panel 50 and the bolt joint The unit connection panel 50 having the 65 is installed on the lower support flange 54 formed on one side of the girder.

Installing a plurality of iron plates or wires in the middle of the elastic body is to give rigidity to the elastic body so that the elastic body of the elastic pad can support the load without breaking when a load is applied to the upper portion of the unit connecting panel. To do this.

In general, the size of the elastic pad 60 is 40 ~ 60mm in thickness and the preferred thickness is 50mm. When the elastic pad 60 has a large vertical displacement, the elastic pad 60 has a large thickness and a narrow width, and when the gap is large, the elastic pad 60 has a thick thickness and a short length.

6 is a view showing a fixing bolt of the present invention, to be fixed with a nut 71 on the upper portion of the stopper 73 installed at regular intervals on the upper portion of the bolt (72). The fixing bolt 70 has a long hole 56 of a predetermined length in the width direction so as to flexibly correspond to the vertical displacement of the new bridges 10 and 20 in the connection connecting portion 30. The stopper 73 is provided so that the amount of movement of the bolt 72 provided in the 56 may be changed within a certain limit while the bolt 72 behaves in accordance with the vertical displacement.

The thickness, width, and size of the unit connecting panel 50 of the elastic pad 60 are determined according to the relative longitudinal stretch of the new bridges 10 and 20, the gap clearance of the unit connecting panel 50, and the relative vertical displacement. Apply.

The present invention improves the riding comfort of the vehicle passing through the connection connection of the bridge by absorbing the displacement amount such as the expansion displacement and the gap displacement of the new bridge by the connecting joint device installed in the connection connection where the old and new bridges cross each other. By absorbing the different displacements of the old and new bridges as the boundary, the connecting joints can act as joints, while reducing the impact load of the vehicle generated at the connecting joints, increasing the durability of the bridges, and connecting the units. The material of the panel is the same as that used for new bridges by using structural steel, and the same durability as the one used for new bridges. The endurance is the same and no special maintenance is required. If the fixing bolt used in the unit connection panel is dismantled and repaired, The maintenance work is very simple because the maintenance is simply completed, and the connection joint connecting the connection joint of the very economical and efficient bridge can reduce the maintenance cost of the new bridge and reduce the effort required for the maintenance. It is an installation method.

Claims (9)

In the connecting device for installing the old and new bridges in contact with each other, Connecting joint device by connecting and connecting the unit connecting panel in which the upper support flange protruding on both sides is formed on the upper part of the lower support flange protruding on both sides of the girder of the old and new bridge in the longitudinal direction where the old and new bridges are in contact with each other. The connecting joint device, which is installed on the part where the new and old bridges with different lengths and materials of the girder, which is characterized in installing the parts, is connected to each other to absorb different amounts of expansion and contraction. The method of claim 1, The unit connection panel forms an upper support flange protruding on both sides in the longitudinal direction, and a vertical plate of a predetermined height is installed on both sides in the longitudinal direction, and has a predetermined size on the lower surface of the upper flange of the four corner portions of the unit connection panel. The elastic pads are attached and the rubber sheets are attached to the four sides of the unit connection panel, and the grooves are formed in the width direction on both sides and the hooks are formed in the grooves, and then the grooves of the plurality of holes are formed. Connection joint device which is installed in the part where new and old bridges with different materials and lengths of girders with different characteristics are connected to each other to absorb different amounts of expansion and contraction. The method of claim 2, The groove of the long hole is formed in the width direction of the unit connecting panel, but the long hole is formed in a plurality of longitudinal holes only on one side so as to absorb the vertical displacement generated in the girder of the old and new bridges, and Connection joint device that is installed in the part where new bridges with different lengths are connected to each other to absorb different amount of expansion and contraction. The method of claim 2 or 3, The long hole is installed in the part where the old and new bridges with different materials and lengths of the girder are connected to each other so that the fixing bolt anchored on the lower support flange is inserted through to absorb different amounts of stretching. Connecting joints. The method of claim 4, wherein The fixing bolt is installed on the part where the old and new bridges with different materials and lengths of the girder are connected to each other, characterized in that the fixing bolt is fixed to the upper part of the stopper installed with a certain interval on the top of the bolt. Connecting joints to absorb the amount of expansion. The method of claim 2, The elastic pad is bolted while installing a plurality of iron plates or wires in the middle of the elastic body, such as rubber, and the connecting plate of the iron plate on the upper portion of the elastic body and a base plate made of a steel plate larger than the size of the elastic pad on it A jointing device for absorbing different amounts of expansion and contraction, which is installed at a portion where new and old bridges having different materials and lengths of girders, which are characterized in that they are 65, are connected to each other. The method according to claim 2 or 6, The thickness of the elastic pad is characterized in that the thickness of the 40 ~ 60㎜ connecting material device and the length of the bridge between the old and new bridges are connected to each other is connected to each other so as to absorb different stretch amount. The method according to any one of claims 2, 6 and 7, The thickness of the elastic pad is a material of the girder characterized by the thickness of the elastic pad is thick and narrow when the displacement of the old and new bridges is large, and the thickness of the elastic pad is thick and short when the gap is large. Connection joint device that is installed in the part where new bridges with different lengths are connected to each other to absorb different amount of expansion and contraction. The method according to any one of claims 2 to 3, The long hole installed in the unit connecting panel is installed only in the longitudinal direction of one side of the unit connecting panel, but it is installed in the girder of the existing or new bridge and fixed with fixing bolts. Connection joints installed on the bridges connected to each other to absorb different amounts of expansion.