KR200338431Y1 - Bridge bearings for dissipation of seismic energy - Google Patents

Abstract

The impact load distribution bridge device of the bridge according to the present invention, the upper plate is fixed to the upper structure of the bridge, such as beams or top plate, the first plate and the second connecting pin protrudes in the diagonal direction on the bottom, and the substructure of the bridge such as bridge And a lower plate body having a third and fourth connection pins protruded in a direction orthogonal to the first and second connection pins on an upper side thereof, and one end of which is rotatably connected to one of the first and second connection pins, and the other end thereof. An oil damper is rotatably connected to one of the third and fourth connecting pins, and the oil damper is normally provided by a special connection, a combination of four oil dampers arranged in a quadrilateral shape, and a stretching device. In addition to the support, rotation and slip function of the vehicle, in the event of an earthquake, the momentary shock load in all horizontal directions is temporarily braked to distribute it so that it can be jointly resisted at all shifts and piers, Compared with the conventional bridge system, the overall height is reduced to 1/2 to 1/3 or less to eliminate the risk of bridge overturning accidents. Relieving the lack of space and area, and eliminating the fear that the components of the bridge device may deviate or the foundation and anchor bolts of the bridge device may be destroyed, resulting in bridge collapse. There is an effect that can prevent falls and fall.

Description

Bridge bearings for dissipation of seismic energy

The present invention relates to the impact load distribution bridge device of the bridge to promote the safety of the bridge and to minimize the earthquake damage.

Bridges are generally composed of multiple shifts, bridges, beams and top plates installed on top of them, so that they can safely support the upper loads of the bridges and be freed from deflection and expansion due to passage loads or temperature changes of the bridges. In order to prevent breakage and fall accidents, the connection part between the upper part of the pier and the lower part of the beam is classified into a fixed end, a longitudinal movable end, a lateral movable end, and a longitudinal and lateral movable end.

However, the seismic shock and displacement do not act exactly in the longitudinal and transverse directions and instantaneously swoop in any direction that cannot be predicted at all. Since there is no time for the component action and the split movement to occur, the horizontal guide portion and its coupling portion may deviate from each other or cause severe breakage.

On the other hand, in most middle and long bridges, especially continuous bridges and curved bridges, the width, extension and weight of the upper and lower structures are so large that many bridge devices are installed in multiple spans, in which case only one fixed bridge bridge device is installed. When the bridge is installed with longitudinal, transverse, and all other spanning devices as the movable end, and the impact horizontal force such as an extreme earthquake acts in a diagonal direction even in a bridge installed to allow free movement and expansion, Not only stages and one-way movable stages, but also vertical and horizontal movable stage staggers with horizontal guides and horizontal coupling portions perpendicular to each other can not be divided and expanded in the X and Y axes. There is a fear that the parts and couplings may deviate, the bridge device may be destroyed, the bridge structure may fall, and the fall may occur.

In particular, in curved continuous bridges or bridges having a wide width, only one bridge device is used as a fixed end, and all of the bridge devices in front, rear, left, and right sides are installed so as to expand and contract in the respective inclination angle directions according to the X and Y axis coordinates. Therefore, there is a problem that the bridge is damaged because it is very vulnerable to shock loads and sudden movements in an unpredictable arbitrary direction such as an earthquake.

Looking at the configuration and problems of the bridge device according to the prior art in more detail as follows.

As shown in FIG. 11, the teaching apparatus disclosed in Korean Utility Model Registration No. 20-0219967 has a first horizontal direction guide portion 112 formed on an upper side thereof, and a fixing plate 110 installed on a pier. The first coupling member 122 is formed to be inserted into the first horizontal direction guide portion 112 is installed so as to be movable in the first horizontal direction (X axis), and the first An upper fixing plate 130 having a second horizontal direction guide part 132 formed on a bottom thereof in a direction perpendicular to a horizontal direction (X axis), and a second coupling part 127 fitted to the second horizontal direction guide part 132. Is formed on the upper side is located between the second moving member 126 and the first moving member 121 and the second moving member 126 which is installed to be movable in the second horizontal direction (Y-axis) Since it is composed of an elastic rubber pad 140, the expansion and contraction of bridges in the longitudinal, transverse and longitudinal and transverse directions is compared with respect to the normal stretching action according to the temperature change. Although it can be made smoothly, when a large impact load such as an earthquake swept from an arbitrary rectangular or diagonal direction, the first and second horizontal direction guides 112 and 132 and the first as usual. Since the proper horizontal component distribution and movement by the two coupling parts 122 and 127 cannot be performed smoothly, the first and second horizontal guide parts and the first and second horizontal parts corresponding to the longitudinal and transverse directions of the teaching device are provided. There is a problem that the coupling portion is immediately deviated, or the foundation and anchor bolt of the bridge device is destroyed, resulting in bridge collapse.

In addition, the 'earthquake proofing device equipped with a viscous fluid brake' disclosed in Korean Utility Model No. 20-0256813, as shown in Figs. 12A and 12B,

Located at the bottom of the bridge upper structure 111, the circular top plate 113 coupled to the upper structure of the bridge by the coupling means; A main support rod 115 having a circumferential shape projecting downward from the center of the upper plate 113 and having three circular grooves vertically inward in a position spaced 120 degrees from each other along the circumferential surface of the middle point of the longitudinal circumference; ; Three circumferences located on the circumference spaced from the center of the upper plate 113 by a predetermined distance, 120 degrees about the main support rod 115, respectively, protruding downward from the intermediate position between two adjacent circular grooves A mold supporting rod 114; Three viscous fluid brakes (119) coupled to the main supporting rod (115) in a horizontal direction and having a piston rod having a first anchor bearing (117) formed thereon and a second anchor bearing (122) formed at its end; A bearing port 128 having a circular groove formed to be coupled to an upper end of the bridge substructure 130 by a coupling means and to be coupled to the second anchor bearing;

The synthetic polymer plate 127, the port cover 126, the fluorine resin plate 125, the stainless sliding plate 124 and the lower plate 123 of a rubber material located inside the bearing port,

The earthquake and impact energy, which was concentrated only on the alternating and pier of a few fixed stages, was described as having the effect of dispersing joints by dispersing the earthquake and impact energy into all the alternating bridges and piers. Excessive distance and space in the front, rear, left and right directions are required, and the lower the height, the higher the overall height of the stable stabilization device is. There is a risk of serious adverse effects on the safety of the bridge, such as the increase of the risk, there was a problem that is difficult to put to practical use.

The present invention has been made to solve the above problems of the prior art, the height of the entire bridge device as low as possible, but the required distance and the occupied area of the front and rear, left and right at the alternating, pier level is minimized, the earthquake, etc. By providing a seismic bridge device that provides instant braking and smooth dispersion function in the direction of impact load, the seismic energy of the entire bridge and the horizontal impact force in any direction can be distributed to all the alternating and pier bridges to resist it. The purpose is to ensure the safety of the bridge.

1 is an exploded perspective view showing an embodiment of the present invention;

2 is a partially assembled perspective view of FIG.

3 is an assembled plan exploded view of FIG. 1;

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view of the oil damper shown in FIG.

Figure 6 is a cross-sectional view showing the connection state of the connection pin of the upper plate and the connection pin of the oil damper

7 is an operation explanatory diagram of the present case in the longitudinal movement of the bridge,

8 is an operation explanatory diagram of the present invention when the transverse movement of the bridge occurs,

9 is an explanatory view of the operation of the elastic member when the lateral movement of the bridge occurs;

10 is an explanatory diagram of the operation of the subject when the bridge moves in the diagonal direction,

11 is an exploded perspective view showing a bridge device of the prior art,

12A and 12B are cross-sectional views of the bridge apparatus of another prior art.

<Description of Symbols for Major Parts of Drawings>

10: upper plate 11, 21: anchor

12: first connecting pin 13: second connecting pin

20: lower plate 22: third connecting pin

23: fourth connecting pin 30: oil damper

40: elastic member

The impact load distribution bridge device of the bridge according to the present invention for realizing the above technical problem, and the top plate body is fixed to the upper structure of the bridge, such as beams or top plate, the first and second connecting pins protrude in the diagonal direction on the bottom surface; A lower plate body fixed to a lower structure of a bridge such as a bridge and having third and fourth connecting pins protruding in a direction orthogonal to the first and second connecting pins on an upper side thereof, and one end of the first and second connecting pins; It is rotatably connected to the other end is composed of an oil damper rotatably connected to one of the third, fourth connecting pin, the oil damper is characterized in that the four oil dampers are arranged in a quadrangular shape.

In addition, the present invention is characterized in that the elastic member is located between the upper, lower plate body.

Hereinafter, an embodiment of the present invention with reference to the accompanying drawings.

1 is an exploded perspective view showing an embodiment of the configuration of the teaching apparatus according to the present invention,

FIG. 2 is a perspective view of a state in which some of the components illustrated in FIG. 1 are assembled;

FIG. 3 is a plan exploded view in which the components shown in FIG. 1 are assembled;

4 is a cross-sectional view taken along the line A-A of FIG.

1 to 4, the top plate body 10 is fixed to the bottom of the upper structure of the bridge, such as the top plate or beam of the bridge by the anchor 11, and the pier by the anchor 21 It consists of a lower plate body 20 is fixed to the upper side of the lower structure of the bridge, such as four oil dampers 30 and the elastic member 40 is installed between the upper, lower plate body 20.

The upper plate body 10 is formed of a steel plate of a quadrangular shape, the first and second connecting pins 12, 13 protrudingly formed in a diagonal direction on the bottom thereof, and the lower plate body 10 is also a rectangular steel plate The third and fourth connecting pins 22 and 23 protrude in a diagonal direction which is preferably formed in a sieve and intersects with the first and second connecting pins 12 and 13 on the upper side thereof.

On the other hand, the oil damper 30, as shown in Figure 5, each of the cylinder 30 is a rod (30a) formed with a circular first connecting ring 30b at the end protrudes to one side and the oil is stored therein, and A piston 35 installed inside the cylinder, and a rod 30c protruding from the piston 35 in a direction opposite to the rod 30a and having a circular second connection ring 30d formed at an end thereof. One thermal ring is rotatably fitted to any one of the first and second connection pins 12 and 13 and the other third and fourth connection pins 22 are formed on the lower plate body 20. Fitted in any one of 23), the four oil dampers 30 are arranged to form a quadrangular shape.

When the first oil damper 31 of the oil damper 30 is described in more detail with reference to FIG. 3, for example, the first connection ring 31b formed on the rod 31a of the first oil damper 31 is It is rotatably fitted to the third connecting pin 22 formed on the side plate body 20, and the second connecting ring 31d formed on the rod 31c is rotatable to the first connecting pin 12 formed on the upper plate body. Is fitted. Since the second, third and fourth oil dampers 32, 33 and 34 are also connected in the same manner as the first oil damper 31, the description thereof will be omitted.

On the other hand, the first to fourth connecting pins are fitted with the first connecting ring of one oil damper and the second connecting ring of the other oil damper, respectively.

That is, as shown in FIG. 6, the second connecting ring 31d of the first oil damper and the first connecting ring 32b of the second oil damper are fitted into the first connecting pin 12.

In addition, the end portion of the first connecting pin 12 is formed with a head portion 12a having an extended diameter to prevent the circular ring 31d, 32b fitted to the connecting pin from being separated from the connecting pin, The second to fourth connecting pins also have a head portion at each end.

In addition, an elastic member 40 is positioned between the upper plate body 10 and the lower plate body 20, and the head of the first and second connection pins 12 and 13 is usually in contact with the lower plate body 20. The heads of the third and fourth connecting pins 22 and 23 are installed to be spaced apart from each other by a predetermined distance, and the upper plate body 10 is installed to be spaced apart from the upper plate 10 by a predetermined distance (see FIG. 6). The shock in the downward direction is configured to be alleviated.

In addition, as shown in FIG. 9, the elastic member 40 is provided with a reinforcing rod 41 in the vertical direction and a plurality of reinforcing iron pieces 42 in the horizontal direction, thereby reinforcing the elastic member.

Hereinafter, the operation of the present invention will be described.

7, 8 and 10 are planar exploded views showing the respective operating states of the four oil dampers according to the expansion and the behavior of the upper beam beam by the earthquake or the like.

All the expansion and movement of the bridge is the upper plate body 10 and the first and second connecting pins 12, while the lower plate body 20 and the third and fourth connecting pins 22 and 23 of the bridge device are always fixed. Only 13) moves in the longitudinal, transverse, or diagonal direction, and thus shows various deformation states in which the four oil dampers each expand and contract in different shapes.

When one side longitudinal movement of the bridge occurs, as shown in FIG. 7, the third oil damper 33 is extended and the first oil damper 31 is contracted.

As shown in FIG. 8, when the one side transverse movement of the bridge occurs, the second oil damper 32 is contracted and the fourth oil damper 34 is elongated, and FIG. 9 is shown in FIG. 8 when the transverse movement of the bridge occurs. It is sectional drawing of the BB line.

In addition, when the bridge moves in a diagonal direction, as illustrated in FIG. 10, the first oil damper 31 and the second oil damper 32 are contracted, and the third oil damper 33 and the fourth oil damper 34. Is stretched.

As shown in the figure, the oil damper 30 at the same time as the special stretching action as shown in Figs. 7 to 10 in accordance with the movement in the longitudinal direction, the lateral direction and the diagonal direction of the bridge and the upper steel plate 10 due to temperature change in normal times. In the two closed cylinders inside, the viscous fluid in the front and rear of the piston is compressed or decompressed, respectively, and only a small amount of the viscous fluid can slowly move through the small holes 36 (see FIG. 5) drilled in the piston 35. This results in braking against sudden shock loads and movements.

Therefore, during an earthquake, any unpredictable horizontal impact load and sudden movement can be absorbed or braked instantaneously. Thus, seismic impact energy and fracture phenomenon, which previously concentrated only on a few fixed-end shifts and piers, It is to provide seismic impact load distribution bridge device to secure the safety of the bridge, prevent the damage of the structure and the large fall accident in advance by dispersing it by the whole shift, the bridge and joint resistance.

The impact load distribution bridge device of the bridge according to the present invention, the upper plate is fixed to the upper structure of the bridge, such as beams or top plate, the first plate and the second connecting pin protrudes in the diagonal direction on the bottom, and the substructure of the bridge such as bridge And a lower plate body having a third and fourth connection pins protruded in a direction orthogonal to the first and second connection pins on an upper side thereof, and one end of which is rotatably connected to one of the first and second connection pins, and the other end thereof. An oil damper is rotatably connected to one of the third and fourth connecting pins, and the oil damper is normally provided by a special connection, a combination of four oil dampers arranged in a quadrilateral shape, and a stretching device. In addition to the support, rotation and slip function of the vehicle, in the event of an earthquake, the momentary shock load in all horizontal directions is temporarily braked to distribute it so that it can be jointly resisted at all shifts and piers, Compared with the conventional bridge system, the overall height is lowered to 1/2 to 1/3 or less to reduce the risk of bridge fall accidents. Relieving the lack of space and floor area, as well as deviating from each component of the bridge device, destroying the foundation and anchor bolts of the bridge device, and even causing the bridge to collapse, thus ensuring the safety of the bridge and preventing earthquakes. There is an effect that can prevent the fall accident and fall by.

Claims (6)

The upper plate body fixed to the upper structure of the bridge, such as a beam or a top plate, protruding the first and second connecting pins in a diagonal direction on the bottom, and the first and second connecting pins fixed to the lower structure of the bridge, such as a bridge, A lower plate body having third and fourth connecting pins protruding in a direction orthogonal to the first plate, and having one end rotatably connected to one of the first and second connecting pins, and the other end rotatable to one of the third and fourth connecting pins. Composed of an oil damper connected, the oil damper is a shock load distribution bridge of the bridge, characterized in that the four oil dampers are arranged in a quadrangular shape. The method of claim 1, The elastic member is a shock load distribution bridge device of the bridge, characterized in that the reinforcing steel plate in the horizontal direction and the reinforcement lead rod in the vertical direction is installed inside the elastic rubber The method of claim 1, The oil damper is connected to a rod having a first connecting ring formed at an end thereof and having a cylinder storing oil therein, a piston installed inside the cylinder, and connected to the piston to protrude in a direction opposite to the rod and having a second connection at the end thereof. The rod is formed of a rod formed, wherein the first and second connection ring, the impact load distribution device of the bridge, characterized in that connected to any one of the first to fourth connecting pins to be rotatable. The method of claim 3, wherein The piston shock load distribution device, characterized in that the piston is formed with a hole through which oil flows. The method of claim 1, The end of the first and second connection pins are spaced apart from the lower plate body, the end of the third, fourth connection pins, the impact load distribution instrument of the bridge, characterized in that spaced apart from the upper plate body. The method of claim 5, The end of the connecting pin is an impact load distribution bridge device of the bridge, characterized in that the head portion is formed extending in diameter than the connecting pin.