KR102020600B1 - Expansion joint of bridge including hinge type finger plate - Google Patents

Abstract

The present invention relates to an expansion joint for a bridge, which is installed on a pair of bridge top plates mutually connected. The expansion joint includes: a horizontal plate fixed to the bridge top plates to surround one part of the upper surface of the bridge top plates, and including a first hinge combination part placed in the upper part; a vertical plate extended from the lower surface of the horizontal plate to surround one part of a lateral side of the bridge top plates; a leak prevention plate placed between the bridge top plates; an insertion frame combined with one end of the horizontal plate and having an insertion space with an open upper side to enable one end of the leak prevention plate to be inserted thereinto; an anchor combined with the horizontal plate and fixed to a rebar installed on the bridge top plates; a fingerplate including a second hinge combination part hinged with the first hinge combination part of the horizontal plate, and rotated around the first hinge combination part; and a gap control unit removably combined with the fingerplate installed on the bridge top plates.

Description

Expansion joints for bridges with hinged finger plates {EXPANSION JOINT OF BRIDGE INCLUDING HINGE TYPE FINGER PLATE}

The present invention relates to a bridge expansion joint device, and more particularly to a bridge expansion joint device that can be easily replaced the leak-proof plate.

Bridge structures expand and contract in response to temperature changes and loads. Therefore, bridge structures constructed over a certain length should be provided with a new expansion joint for bridges at regular intervals (generally referred to as "gaps") at certain lengths of the bridge deck to prevent damage to the bridge deck. Make the vehicle run smoothly.

Conventional expansion joints for the bridge has a problem that it takes a long time when the expansion joint is installed because it is embedded in the bridge top plate by concrete pouring.

In addition, when leakage occurs due to cracking or damage of concrete or damage to the leak prevention plate, the concrete joint must be broken to perform the repair or replacement of the expansion joint. There was a problem in that it is impossible to install only the necessary subsidiary materials, and repair the entire expansion joint.

Conventional bridge expansion joints for solving this problem is the Republic of Korea Patent Publication No. 10-1739247 "construction method of waterproof expansion joints for bridges" (hereinafter referred to as the prior art).

However, in the case of the existing expansion joint device for bridges including the prior art, since the finger plate has to be separated from the top plate in order to replace the leakproof plate, there is a problem that the replacement of the leakproof plate is difficult and takes a long time. .

The present invention has been invented to solve the above problems, an object of the present invention is to provide an expansion joint device for bridges that can be easily replaced the leak-proof plate.

The present invention provides a bridge expansion and contraction apparatus installed on a pair of bridge top plates connected to each other, the horizontal plate being fixed to the bridge top plate to surround a portion of the upper surface of the bridge top plate and having a first hinge coupling portion at one side; A vertical plate extending from a lower surface of the horizontal plate and surrounding a side portion of the bridge upper plate; A leakage preventing plate disposed between the pair of bridge top plates; An insertion frame coupled to one end of the horizontal plate and having an insertion space open at an upper side thereof to insert an end of the leakage preventing plate; An anchor coupled to the vertical plate and fixed to reinforcing bars installed on the bridge deck; A finger plate provided with a second hinge coupling portion hinged to the first hinge coupling portion provided on the horizontal plate and rotating around the first hinge coupling portion; And characterized in that it comprises a spacing control unit is fastened to be detachable to the finger plate respectively installed on the bridge top plate.

In addition, the gap adjusting unit of the present invention, is fastened to the finger plate through a bolt, and includes an adjustment member, a first connection member and a second connection member, the adjustment member, the spanner is inserted into the body rotate; A first screw extending from one side of the body and having a thread; It characterized in that it comprises a second screw extending from the other side of the body and formed with a screw thread opposite the tightening rotation direction of the screw and the first screw.

In addition, the first connecting member of the present invention is provided in a 'b' shape, the first groove is formed in the fastening groove is formed on the finger plate installed on the bridge top plate located on one side of the pair of the bridge top plate ; And a first vertical portion extending upwardly from one end of the first horizontal portion and having a first insertion hole formed with a thread corresponding to the thread of the first screw so that the first screw is inserted therein. .

According to the present invention has the following effects.

Since the finger plate and the horizontal plate are coupled through the hinge coupling to facilitate the construction, the finger plate and the horizontal plate can provide an effect of reducing the time and cost required for the construction of the finger plate.

In addition, when replacement or repair of the leakage preventing plate is required, the operator can rotate the finger plate on the first hinge coupling part of the horizontal plate to perform the maintenance of the leakage preventing plate, so that the replacement of the leakage preventing plate It can be easily carried out, there is an effect that the time required for the replacement of the leak-proof plate can be shortened.

In addition, it is possible to adjust or fix the distance between the expansion joints for bridge decks respectively installed on a pair of bridge tops connected to each other through the gap adjusting unit, thereby improving the construction accuracy of the expansion joints for bridge decks, Construction of expansion joints for bridge deck can be made easily.

1 is a front view of the expansion joint device for a bridge according to the present invention.
Figure 2 is a front view of the expansion joint device for a bridge according to the present invention.
Figure 3 is a perspective view of the expansion joint device for a bridge according to the present invention.
Figure 4 is a front view of the expansion joint device for a bridge in accordance with the present invention.
5 is a front view of the expansion joint device for a bridge according to the present invention.
Figure 6 is a front view of the expansion joint device for a bridge in accordance with the present invention.
7 is a perspective view of the interval adjusting unit of the expansion joint device for bridges according to the present invention is installed.
8 is a perspective view showing a gap adjusting unit of the expansion joint device for a bridge according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings, but the well-known technical parts will be omitted or compressed for brevity of description.

Referring to Figures 1 to 8, the bridge expansion and contraction apparatus 10 according to the present invention is installed on a pair of bridge top plate 20 connected to each other, horizontal plate 100, vertical plate 200 , Leak prevention plate 300, insertion frame 400, anchor 500 comprises a finger plate 600 and the gap adjusting unit 1000.

Referring to FIG. 1, the horizontal plate 100 is fixed to the bridge top plate 20 to surround a portion of the top surface of the bridge top plate 20.

In addition, the horizontal plate 100 is provided with a first hinge coupling portion 110 coupled to the finger plate 600 on one side, and serves to support the finger plate 600 seated on the top.

The vertical plate 200 extends from the lower surface of the horizontal plate 100 to surround a portion of the side surface of the bridge top plate 20.

Accordingly, the horizontal plate 100 and the vertical plate 200 are installed at the end edge portion of the bridge top plate 20 to surround the upper surface portion and the side portion of the bridge upper plate 20.

The leakage preventing plate 300 is disposed between the pair of bridge top plates 20.

Then, the leakage preventing plate 300 is provided in a convex arch shape at the bottom.

In addition, the leakage preventing plate 300 is provided with convex protrusions 310 at both ends, respectively, and both ends at the insertion frame 400 of the expansion joint device 10 for bridges respectively installed on a pair of bridge top plate 20 to be connected. Protruding portion 310 provided in may take.

The leakage preventing plate 300 may be made of a rubber material or a synthetic resin material having excellent waterproof function and elasticity.

In addition, the leakage preventing plate 300 is foreign matter containing water introduced from the outside into the gap between the finger plate 600 of the expansion joint device 10 for bridges respectively installed in a pair of bridge top plate 20 to be connected To prevent it from flowing down.

The insertion frame 400 is coupled to one end of the horizontal plate 100 and the insertion space 400s is formed in which the upper side of which the end of the leakage preventing plate 300 is inserted is opened.

Then, after the end of the leakage preventing plate 300 is inserted into the insertion space 400s of the insertion frame 400, the cover 410 for preventing the leakage of the leakage preventing plate 300 from the insertion frame 400 is Can be prepared.

In addition, the insertion frame 400 may be coupled to one side of the vertical plate 200 which is a side between the pair of bridge top plate (20).

The anchor 500 is coupled to the other side of the vertical plate 200 and is fixed to the reinforcing bar 21 installed in the bridge top plate 20.

The anchor 500 may be provided in an L-type or I-type, etc., may be coupled to the reinforcing bar 21 inside the bridge top plate 20 and fixed to the bridge top plate 20, and for the bridge top plate 20 and the bridge. It may be coupled to the filling member (G) which is filled between the expansion joint device 10 may be fixed to the bridge top plate (20).

Here, the filling member G may be provided with epoxy, may be provided with mortar, or may be provided with concrete. The filling member G is filled to the same height as the finger plate 600.

Referring to Figure 2, the finger plate 600 is hinged to the first hinge coupling portion 110 provided on the horizontal plate 100 through the second hinge coupling portion 610 provided at the end, the first hinge The coupling unit 110 is rotated about an axis.

Referring to FIG. 3, the finger plate 600 includes at least one adjusting member 620.

The adjusting member 620 adjusts the distance between each of the bridge expansion and contraction apparatus 10 installed on the pair of bridge top plate 20 to be connected to each other.

In more detail, the adjustment member 620 is each of the bridge expansion joints installed on the pair of bridge top plates 20 to be connected to each other before the bridge expansion joint 10 is installed on the bridge top plate (20). By performing the pre-setting function of adjusting the space | interval between (10) in advance, the installation ease and installation accuracy of the expansion joint apparatus 10 for bridges can be improved.

In addition, the finger plate 600 is coupled to the horizontal plate 100 through the bolt (V) and the nut (N), due to the running of the vehicle on the expansion joint 10 for the bridge, the finger plate 600 flows Can be prevented.

In addition, the horizontal plate 100 is provided with a rotation preventing member (not shown), the finger plate 600 is provided with a rotation preventing member insertion groove (not shown), the finger plate 600 is perpendicular to the horizontal plate 100 When rotated in the direction of the lift, by inserting the rotation preventing member (not shown) provided on the horizontal plate 100 into the rotation preventing member insertion groove (not shown) provided in the finger plate 600 as a support, the finger by the weight The plate 600 may be prevented from rotating in the horizontal direction of the horizontal plate 100.

On the contrary, the finger plate 600 may be provided with an anti-rotation member (not shown), and the horizontal plate 100 may be provided with an anti-rotation member insertion groove (not shown).

In addition, the bridge expansion joint 10 according to the present invention may further include a first torsion spring (700).

The first torsion spring 700 is disposed between the horizontal plate 100 and the finger plate 600, and adds a force that is opposite to the direction of rotation of the finger plate 600 in the horizontal state, so that the The rotational force is buffered during the rotational movement in the horizontal state, and the rotational force is reinforced during the rotational movement in the vertical state of the finger plate 600.

Therefore, the force required to lift the finger plate 600 is reduced, so that the first torsion spring 700 can provide convenience to the operator. In addition, the first torsion spring 700 has the finger plate 600 or the horizontal plate 100 due to the collision between the finger plate 600 and the horizontal plate 100 during the rotational movement of the finger plate 600 in the horizontal state. It can prevent damage.

In addition, the extension coupling portion 210 may be installed on the side of the vertical plate 200 in order to connect the extension joints 10 for bridges, which are arranged to be extended.

4 to 6, a first tooth portion 320 is provided on one side of both ends of the leakage preventing plate 300, and the expansion joint device 10 for a bridge according to the present invention includes a rotating part 800. And a departure prevention unit 900.

The rotating part 800 is positioned above the end of the insertion frame 400 and the leakage preventing plate 300 and engages with the first tooth portion 320, and inserts the end of the leakage preventing plate 300 according to the rotation direction into the insertion space 400s. Move or the end of the leak-proof plate 300 is separated from the insertion space (400s).

Referring to FIG. 4, the rotating part 800 includes a bracket 810, a bearing 820, and a rotating shaft 830.

The bracket 810 is coupled to one end of the horizontal plate 100.

The bearing 820 is installed on the lower side of the bracket 810 so that the rotating shaft 830 connected to the bearing 820 may be engaged with the first tooth portion 320 provided on the leakage preventing plate 300.

The rotating shaft 830 is rotatably connected to the bearing 820, and a second tooth portion 831 is provided to engage the first tooth portion 320.

In addition, the rotation shaft 830 moves the end of the leakage preventing plate 300 to the insertion space 400s or separates the end of the leakage preventing plate 300 from the insertion space 400s according to the direction of rotation by the operator. .

In addition, a handle (not shown) is provided at the shaft end of the rotating shaft 830, so that a worker may rotate the rotating shaft 830 by rotating the handle (not shown), or the handle at the shaft end of the rotating shaft 830. Coupling portion (not shown) is provided, the operator may rotate the rotating shaft 830 by engaging the handle (not shown) to the handle coupling portion (not shown) by rotating the handle (not shown).

The departure prevention part 900 is disposed above the end of the insertion frame 400 and the leakage preventing plate 300 and is in close contact with the end of the leakage preventing plate 300 to prevent it from being separated from the insertion space 400s.

In addition, when the bridge expansion joints 10 are respectively installed on a pair of bridge top plates 20 connected to each other, the leakage preventing plate 300 is fixed by the separation prevention unit 900 to expand each bridge expansion joint. A gap between the devices 10 prevents foreign substances, including water flowing from the outside, from flowing down.

In addition, a second torsion spring (not shown) is inherent in the release preventing part 900 to maintain the state of being in close contact with the first tooth part 320 even while the end of the leakage preventing plate is moved to the insertion space 400s. To prevent the end of the leakage preventing plate 300 inserted into the insertion space 400s is separated.

In addition, the second torsion spring (not shown) prevents the breakaway prevention part 900 from being broken by the rotation shaft 830 due to the weight of the leakage preventing plate 300.

5 and 6, when the end of the leakage preventing plate 300 is inserted into the insertion space 400s of the insertion frame 400 and the end of the leakage preventing plate 300 is the insertion space of the insertion frame 400 ( The case where it discharges from 400s) is demonstrated.

First, referring to FIG. 5, a case in which an end of the leakage preventing plate 300 is inserted into the insertion space 400s of the insertion frame 400 will be described.

When the worker is in close contact with the end of the leakage preventing plate 300 to the rotating shaft 830 and rotates the rotating shaft 830, the end of the leakage preventing plate 300 is linked to the rotation of the rotating shaft 830 of the insertion frame 400 It is moved to the insertion space 400s.

Here, as shown in FIG. 5, the departure prevention part 900 is pushed by the second tooth portion 831 of the leakage prevention plate 300 in a state of being in close contact with the leakage prevention plate 300.

Then, when the movement of the leakage preventing plate 300 is terminated, as shown in Figure 4, the departure prevention portion 900 prevents the end of the leakage prevention plate 300 is separated from the insertion space (400s).

Referring to FIG. 6, a case where the end of the leakage preventing plate 300 is discharged from the insertion space 400s of the insertion frame 400 will be described.

When the leakage preventing plate 300 is damaged or damaged and a replacement is required, the worker rotates the release preventing unit 900 which prevents the discharge of the leakage preventing plate 300 so that the leakage preventing plate 300 is inserted into the insert frame 400. It can be discharged from the insertion space (400s) of the.

Then, the operator rotates the rotary shaft 830 to discharge the leakage preventing plate 300 from the insertion space 400s of the insertion frame 400, or pull the leakage prevention plate 300, the insertion space of the insertion frame 400 The leak prevention plate 300 can be discharged from 400s.

In addition, a handle (not shown) is provided at an end of the departure prevention part 900, and a worker may rotate the departure prevention part 900 by rotating the handle (not shown). A handle coupling portion (not shown) is provided at an end of the operator, and the operator may rotate the separation prevention portion 900 by rotating the handle (not shown) by coupling the handle (not shown) to the handle coupling portion (not shown). have.

In summary, the leakage preventing plate 300 may be fixed to the insertion frame 400 through the separation prevention unit 900.

And, the length of the leak-proof plate 300 can be adjusted through the rotation shaft 830, the gap between each bridge expansion joint 10 for the bridge occurs differently depending on the installed position for the bridge expansion joint 10 Since the length of the leakage preventing plate 300 can be adjusted to a length corresponding to the above, it can provide convenience to the worker.

In addition, by rotating the departure prevention unit 900, it is possible to easily discharge the leakage preventing plate 300, it is possible to improve the workability of the leakage preventing plate 300 replacement work.

As a result, the bridge expansion and contraction apparatus 10 according to the present invention is coupled to the finger plate 600 and the horizontal plate 100 through the hinge coupling to facilitate the construction, the finger plate 600 is required for construction work Time and cost can be saved.

In addition, when replacement or repair of the leakage preventing plate 300 is required, the operator rotates the finger plate 600 by rotating the first hinge coupling part 110 of the horizontal plate 100 to the leakage preventing plate 300. Maintenance work can be carried out, providing convenience to workers.

Referring to Figures 7 and 8, the bridge deck expansion and contraction apparatus 10 according to the present invention is a gap adjusting unit that is detachably fastened to the finger plate 600 installed on the pair of bridge top plate 20, respectively. (1000) further.

More specifically, the gap adjusting unit 1000 is fastened to the finger plate 600 through the bolt C, and includes an adjusting unit 1010, a first connecting member 1020, and a second connecting member 1030. do.

The adjusting unit 1010 includes a body 1011 to which a spanner (not shown) is rotated, a first screw 1012 extending from one side of the body 1011, and having a thread, and extending from the other side of the body 1011. And a first screw 1012 and a second screw 1013 on which threads are formed in which the tightening rotation directions of the threads are opposite to each other.

The first connection member 1020 is provided in a 'b' shape, the fastening groove is formed is fastened to the finger plate 600 installed on the bridge top plate 20 located on one side of the pair of bridge top plate 20 A first insertion portion extending upwardly from one end of the horizontal portion 1021 and the first horizontal portion 1021 and having a thread corresponding to the thread of the first screw 1012 so that the first screw 1012 is inserted; And a first vertical portion 1022 having a hole 1022h formed therein.

Here, the first connection member 1020 may be moved according to the rotation of the first screw 1012.

The second connection member 1030 is provided in a 'b' shape, the fastening groove is formed to be fastened to the finger plate 600 installed on the bridge top plate 20 located on the other side of the pair of bridge top plate 20 A second insert extending upward from one end of the horizontal portion 1031 and the second horizontal portion 1031 and having a thread corresponding to the thread of the second screw 1013 so that the second screw 1013 is inserted; And a second vertical portion 1032 formed with holes 1032h.

Here, the second connection member 1030 may be moved according to the rotation of the second screw 1013.

In summary, since the first screw 1012 and the second screw 1013 are provided with opposite tightening rotation directions of the threads, when the adjusting unit 1010 is rotated forward, the first connecting member 1020 and the second connecting member ( 1030 may be approached to each other, and when the adjusting unit 1010 is reversely rotated, the first connecting member 1020 and the second connecting member 1030 are separated from each other, the gap adjusting unit 1000 is a pair of bridges Since the distance between the finger plates 600 respectively installed on the upper plate 20 can be adjusted, before the bridge upper plate expansion joint 10 is installed on the bridge upper plate 20, the interval of the expansion joint 10 for the bridge upper plate 10 is provided. You can use the preset function to adjust the preset value.

And, when the control unit 1010 is stopped, the gap adjusting unit 1000 can fix the gap between the finger plate 600 installed on the pair of bridge top plate 20, respectively, a pair of bridge top plate to connect The clearance can be temporarily fixed before the pair of expansion joints 10 for bridge decks are completely secured to (20).

In addition, after the construction of the expansion joint 10 for the bridge deck is completed, the gap adjusting unit 1000 is removed so as not to interfere with the running of vehicles (not shown) passing through the bridge.

Accordingly, the gap adjusting unit 1000 adjusts the gap between the finger plates 600 respectively installed on the pair of bridge top plates 20, and adjusts the gap between the finger plates 600 respectively installed on the pair of bridge top plates 20. Since the fixing can be performed, the ease of installation and the construction accuracy of the expansion joint device 10 for bridge decks can be improved.

As described above, although the detailed description of the present invention has been made by the embodiments, it is understood that the present invention is limited to the above embodiments only because the above-described embodiments have only been described with reference to preferred examples of the present invention. It should not be understood that the scope of the invention should be understood as the claims and equivalents described below.

10: expansion joint for bridge
100: horizontal plate 110: first hinge coupling portion
200: vertical plate 300: leakage preventing plate
400: insertion frame 500: anchor
600: finger plate 610: second hinge coupling portion
620: adjustment member 700: first torsion spring
800: rotating part 900: separation prevention part
20: bridge deck 21: rebar

Claims (3)

In the expansion joint device for bridges installed in a pair of bridge top plate connected to each other,
A horizontal plate fixed to the bridge upper plate to surround a portion of the upper surface of the bridge upper plate and having a first hinge coupling part at an upper portion thereof;
A vertical plate extending from a lower surface of the horizontal plate and surrounding a side portion of the bridge upper plate;
A leakage preventing plate disposed between the pair of bridge top plates;
An insertion frame coupled to one end of the horizontal plate and having an insertion space open at an upper side thereof to insert an end of the leakage preventing plate;
An anchor coupled to the vertical plate and fixed to reinforcing bars installed on the bridge deck;
A finger plate provided with a second hinge coupling portion hinged to the first hinge coupling portion provided on the horizontal plate and rotating around the first hinge coupling portion; And
And a gap adjusting unit fastened to the finger plates respectively installed on the bridge top plates.
The gap adjusting unit,
It is fastened to the finger plate through a bolt, and includes an adjusting portion, a first connecting member and a second connecting member,
The control unit,
A body into which the spanner is inserted and rotated;
A first screw extending from one side of the body and having a thread;
A second screw extending from the other side of the body and having a screw thread in which a tightening rotation direction of the screw and the thread is opposite to the first screw;
The first connection member,
A first horizontal portion provided in a 'b' shape and fastening grooves are formed and fastened to the finger plate installed on the bridge upper plate located on one side of the pair of bridge upper plates; And
A first vertical portion extending upward from one end of the first horizontal portion and having a first insertion hole formed with a thread corresponding to the thread of the first screw so that the first screw is inserted therein;
The second connection member,
A second horizontal portion provided in a 'b' shape and fastening grooves are formed and fastened to the finger plate installed on the bridge top plate located on the other side of the pair of bridge top plates; And
A second vertical portion extending upwardly from one end of the second horizontal portion and having a second insertion hole formed with a thread corresponding to the thread of the second screw so that the second screw is inserted;
Since the first screw and the second screw is provided with the opposite tightening rotation direction of the screw thread, when the control unit is rotated forward, the first connection member and the second connection member can approach each other, the control unit reverse rotation When the first connection member and the second connection member is separated from each other, the gap adjusting unit can adjust the distance between the finger plate respectively installed on the pair of the bridge top plate, the expansion joint to the bridge top plate Before installing, it can be a pre-setting function to adjust the interval of the expansion joint in advance,
It is located above the end of the insertion frame and the leak-proof plate and engaged with the first tooth portion, and moves the end of the leak-proof plate to the insertion space or the end of the leak-proof plate from the insertion space in accordance with the rotation direction It further comprises a rotating portion to make,
The rotating part includes a bracket, a bearing and a rotating shaft,
The bracket is coupled to one end of the horizontal plate,
The bearing is installed on the lower side of the bracket so that the rotating shaft connected to the bearing can be engaged with the first tooth portion provided in the leakage preventing plate,
The rotating shaft is rotatably connected to the bearing, the second tooth portion is provided to engage the first tooth portion,
The rotating shaft includes a hinge-type finger plate, characterized in that for moving the end of the leak-proof plate to the insertion space or the end of the leak-proof plate from the insertion space according to the direction rotated by the operator Expansion joints.
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