KR20200007137A - An expansion joint for bridge having watertight member of a fabric or a high-strength sheet and an its construction method. - Google Patents

Abstract

The present invention relates to a bridge expansion joint device having a waterproof member of a fiber material or a high-strength sheet and a construction method thereof, and more specifically, to a bridge expansion joint device having a waterproof member of a fiber material or a high-strength sheet and a construction method thereof, which can allow a waterproof member, which prevents debris from falling to a lower portion of a bridge, to be made of a fiber material before being constructed by means of cutting and sewing, thereby maintaining excellent airtight performance of the waterproof member regardless of an installation position of the expansion joint device. To this end, the bridge expansion joint device having a waterproof member of a fiber material or a high-strength sheet comprises: a pair of support members installed at a gap of a slab on an upper plate of a bridge; a pair of finger plates which are installed at an upper end portion of each support member, and are engaged with each other, after being installed while a gap for an expansion movement is formed; and a waterproof member fixated to the support members to be arranged at the gap of the slab, and receiving water and debris introduced through the gap of the pair of finger plates. Here, the waterproof member is characterized by being made of a fiber material or a high-strength sheet.

Description

{Expansion joint for bridge having watertight member of a fabric or a high-strength sheet and an its construction method.}

The present invention relates to a expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet, and a construction method thereof, and more particularly, a fiber for maintaining excellent airtightness regardless of the installation position of the expansion joint device. A stretch joint device for a bridge having a waterproof member of ash or high strength sheet, and a construction method thereof.

In general, in a relatively long bridge having a plurality of bridges, in order to cope with the expansion and contraction of the bridge according to the temperature change, the top plate of the bridge is divided into several parts in the longitudinal direction of the bridge, and the expansion joint between each divided top plate portion Install the device.

The expansion joint is installed on the top of the bridge, such as the joint or expansion of the bridge to accommodate the contraction and expansion caused by the difference in the temperature change of the concrete, smooth the traffic of the bridge connection portion and foreign matter to the bottom of the bridge It also prevents the inflow and rainwater inflow and prevents rust on the underside of the bridge, which is secondary damage, and prevents corrosion of concrete.

Hereinafter, a brief description will be made of a conventional expansion joint apparatus with reference to the accompanying FIG.

As shown in FIG. 1, the expansion joint device is provided with a pair of supporting members 10 disposed at a predetermined interval while facing each other and provided with an anchor a on each outer surface thereof, and the supporting members 10. 10) water installed in a pair of finger plates 20 disposed on the horizontal end of the upper end to be engaged with each other, and spaced apart from each other by the support members 10 spaced apart from each other, and falling between the finger plates 20. Or it consists of a waterproof member 30 of a rubber material for receiving foreign matter.

As shown in FIG. 2, the expansion joint device having such a configuration is installed at each point of the bridge top plate at regular intervals to smoothly pass the vehicle and prevent the bridge from being damaged while performing the stretching operation.

In addition, by allowing the rubber waterproof member 30 to receive water or foreign matter, to prevent damage to the lower bridge.

However, the conventional expansion joint device has the following problems.

Of the meeting points between the top plate of the bridge, there was a problem that the rubber waterproof member 30 of the expansion joint installed in the point (C) intersecting between the top plate of the bridge to perform the role properly.

That is, the expansion joint device installed in the cross position and the T-shaped position that is the point intersecting between the upper plate of the bridge, the airtightness of the waterproof member 30 because the connection between the waterproof member 30 made of rubber is difficult to be made airtight It was difficult to maintain power.

Accordingly, water or foreign matter on the bridge is leaked between the waterproof member 30 joint portion while falling down the bridge, causing a problem that damages the bridge substructure.

In addition, due to the nature of the rubber material waterproof member has a short replacement cycle, there is a problem that the cost for maintenance management increases.

Republic of Korea Registration No. 10-1530663

The present invention has been made in order to solve the above problems, an object of the present invention by constructing a waterproof member through the cutting and sewing the material of the waterproof member to filter out water or foreign matter, the bridge between each other It is an object of the present invention to provide an expansion joint device for a bridge having a waterproof member of a fiber material or a high-strength sheet and a construction method thereof so as to maximize the effect of preventing leakage and blocking foreign substances under the bridge at an intersection point.

The present invention to achieve the above object, a pair of support members installed between the slab clearance of the bridge top plate; is installed on the upper end of each of the support members, while being engaged with each other while the clearance for the elastic movement is formed A pair of finger plate is installed; It is fixed to the support member is disposed in the slab spacing, and a waterproof member for receiving water and foreign matter flowing through the pair of finger plate clearance, including; Provided is an expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet, characterized in that the high strength sheet.

At this time, the waterproof member is preferably aramid fiber (aramid fiber).

In addition, the waterproof member is cut to correspond to the point where the expansion joint is crossed and the longitudinal direction of the expansion joint is preferably connected to each other through sewing.

In addition, the support member is formed with a fastening groove shielded through the finger plate, one end is inserted into the fastening groove, the other end is further provided with a fastener bent to the side of the support member, the end of the waterproof member is supported Interposed between the side of the member and the fastener, the bolt is preferably screwed to the support member through the fastener and the waterproof member.

As another example for achieving the above object, in the construction method of the expansion joint device for bridges installed between the slab clearance of the bridge top plate, the construction of a waterproof member for receiving and filtering water falling from the upper finger plate to filter And, the waterproof member is provided with aramid fibers, the waterproof member is cut to correspond to the lengthwise direction of the expansion joint and the expansion joint, then the fiber material characterized in that the construction is connected to each other through sewing Or it provides a construction method for the expansion joint for the bridge having a waterproof member of the high-strength sheet.

The expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet and a construction method thereof according to the present invention have the following effects.

By making the material of the waterproof member that receives water and foreign matter falling through the finger plates of the expansion joint device as a fiber material, the cutting of the waterproof member can be made easily and sewing is possible.

Accordingly, the shape of the waterproof member installed at the point where the bridge top plate crosses, that is, the cross and the T-shaped point can be easily provided by the cross and the T letter. There is an effect to increase the confidentiality of the intersection point.

In particular, since the waterproof member is provided as an aramid fiber, since the durability and heat resistance are high, the maintenance cycle can be extended, thereby reducing the maintenance cost.

1 is a perspective view showing a expansion joint device for a bridge according to the prior art
2 is a plan view showing a bridge in which the expansion joint for the bridge is installed
Figure 3 is a perspective view showing the expansion joint device for a bridge having a waterproof member of the fiber material or high strength sheet according to an embodiment of the present invention
Figure 4a is a plan view of the main portion showing the point where the expansion joint for the bridge having a waterproof member of a fiber material or a high strength sheet cross the cross on the bridge deck
Figure 4b shows the main portion of the waterproof member of the expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet according to a preferred embodiment of the present invention, the cross of the expansion joint for the bridge cross (cross) Perspective view showing a waterproof member corresponding to a point
Figure 5a is a plan view of the main portion showing the point where the expansion joint for the bridge having a waterproof member of the fiber material or high strength sheet intersects the letter T in the bridge top plate
Figure 5b shows the main portion of the waterproof member of the expansion joint for a bridge having a waterproof member of a fiber material or a high strength sheet according to a preferred embodiment of the present invention, corresponding to the intersection of the expansion joint for a bridge to cross the T-shaped Perspective view of a waterproof member
Figure 6 is a flow chart showing the main steps in the construction method of the expansion joint device for a bridge having a waterproof member of a fiber material or high strength sheet according to a preferred embodiment of the present invention.
Figure 7a and 7b is a cross-sectional view showing the waterproof member installation structure of the expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet according to a preferred embodiment of the present invention.

The terms or words used in this specification and claims are not to be construed as limiting in their usual or dictionary meanings, and the inventors may properly define the concept of terms in order to best explain their invention in the best way possible. On the basis of this, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Hereinafter, with reference to the accompanying Figures 3 to 5b to the bridge expansion joint device having a waterproof member of a fiber material or a high strength sheet according to the preferred embodiment of the present invention (hereinafter referred to as "expansion bridge for bridges") Let's explain.

Extension joint for the bridge is made of a waterproof member material of the fiber material to prevent water or foreign substances from leaking to the lower part of the bridge, the waterproof member connection can be made through sewing and heat bonding.

Accordingly, regardless of the location where the expansion joint is installed, it is possible to increase the airtight holding force of the waterproof member, thereby improving efficiency and economic efficiency for maintenance management.

As shown in FIG. 3, the bridge expansion joint includes a support member 100, a finger plate 200, and a waterproof member 300.

The support member 100 is fixed through the anchor 110 to the spaced slab of the bridge top plate.

The support members 100 are provided in pairs and face each other at the flow path of the slab.

At this time, the support member 100 is formed with a fastening groove 120 which is open toward each upward.

The fastening groove 120 is a portion into which the fastener of the fixing means to be described later is inserted.

At this time, the screw hole 130 is formed on the side of the support member 100.

The fastening groove 120 and the screw hole 130 of such a configuration is configured for coupling the waterproof member 300, a detailed description will be described later.

Next, the finger plate 200 guides the stretch path during the stretch action of the bridge, and allows the stretch action of the bridge to be made flexible.

The finger plate 200 is installed at the upper end of the support member 100 and is provided in pairs that are engaged with each other.

The finger plate 200 is alternately formed with the protrusions and the grooves (see FIG. 1), and the protrusions and the grooves are disposed to be staggered between the opposing finger plates 200.

Next, the waterproof member 300 serves to block leakage of water or foreign substances falling from the ground to the lower portion of the bridge, and is installed between the support members 100.

That is, the rainwater or the foreign matter of the ground may fall through the space between the pair of finger plates 200, the waterproof member 300 is to prevent the water or foreign matter falling to the lower portion of the bridge will be.

The waterproof member 300 is provided as a sewable fiber material or a high strength sheet capable of thermal bonding.

The waterproof member 300 is installed below the finger plate 200, and both ends thereof are fixed to the side of the support member 100 as shown in FIG. 3.

As shown in FIG. 1, when the waterproof member 30 is fixed in a form interposed between the finger plate 20 and the support member, the waterproof member 30 may be separated or torn from the intervening portion in the stretching process. There is a concern, as shown in Figure 3 by being fixed to the side of the support member 100 can increase the fastening force of the waterproof member (30).

The waterproof member 300 is fixed to the side of the support member through the fixing means 400, the fixing means 400 is preferably composed of a fastener 410 and the bolt 420.

The fastener 410 is composed of an insertion part 411 inserted into the fastening groove 120, and an adhesive part 412 formed by bending the multi-stage toward the flow of the support member 100 from the insertion part 411.

Fastener 410 of such a configuration is preferably made of 'c' shape as shown in FIG.

At this time, the close contact portion 412 is formed with a fixing hole (412a) corresponding to the screw hole (130).

In addition, the contact portion 412 and the support member 100 is spaced apart from each other, the space is provided with a size that can be positioned the end of the waterproof member 300.

With this configuration, both ends of the waterproof member 300 are inserted into the space between the close contact portion 412 and the support member 100, and the bolt 420 is fixed to the fixing hole 412a of the close contact portion 412. By fastening the screw through the screw hole 130 through the fixing of the waterproof member 300 to the support member 100 is completed.

At this time, it is preferable that through holes corresponding to the fixing holes 412a and the screw holes 130 are formed at both ends of the waterproof member 300.

On the other hand, the material of the waterproof member 300 is a fiber material or a high-strength sheet as described above, preferably provided as aramid fiber (aramid fiber) having a waterproof function.

Aramid fiber 300 is a polyamide fiber material with excellent durability, a material that is widely used in the aerospace field or military.

Aramid fiber 300 is known to be 6 times or more tensile strength compared to iron.

In particular, the aramid fiber 300 has a characteristic of maintaining the original state even at 400 degrees Celsius or more, unlike nylon has excellent heat resistance.

The aramid fiber 300 may be cut to be integrally constructed over 5m.

Accordingly, it is possible to minimize the joint section between the expansion joint device.

That is, in the related art, a joint part is generated for each expansion joint device having a diameter of about 1.8 m, and the waterproof member 30 is provided with a length corresponding to the expansion joint device, so that a joint part occurs for each expansion joint device. 300 is provided by the fiber material can be cut to maximize the length so that the seam can be minimized.

The waterproof member 300 may be made of high strength nylon, which is a high-strength sheet material in addition to aramid fibers.

Looking at the construction that the waterproof member 300 made of the aramid fiber is applied to the expansion joint device as follows.

As shown in Figure 4a, when the expansion joint is crossed in the cross shape, the construction of the waterproof member 300 as shown in Figure 4b is made.

First, as shown in Figure 6, for the construction of the waterproof member 300 to prepare aramid fiber or high strength sheet. (S100)

Thereafter, the aramid fibers or the high-strength sheet is cut in the form of a cross (S200), and the aramid fibers of the length corresponding to a straight stretch joint device at each of four points of the aramid fiber or the high-strength sheet cut in the cross (cross) Sewing, or in the case of high-strength sheet is fixed through heat bonding. (S300)

Thus, the waterproof member 300 provided through the aramid fiber sewing or high-strength sheet heating bonding is installed on the support member 100 as shown in FIG.

At this time, the upper and lower lengths of the waterproof member 300 installed in the support member 100 is preferably longer than the upper and lower lengths of the waterproof member 300 made of a conventional rubber material.

Since the elasticity of the aramid fibers or high-strength sheet is lower than that of the rubber material, the elastic force can be compensated by lengthening the upper and lower lengths of the waterproof member 300 connected to the aramid fibers or the high-strength sheet.

At this time, the waterproof member 300 is preferably manufactured in the upper, lower length added more than 10% compared to the actual design.

Thus, the expansion joint having a waterproof member 300 made of aramid fibers or high-strength sheet is installed on the bridge top plate, even in the section where the expansion joint is installed in the form of a cross (cross type) as well as a cross (cross type) The waterproof member 300 can maintain excellent airtightness.

Meanwhile, the expansion joint may cross the bridge in a T-shape.

The construction of the waterproof member 300 in the section where the expansion joint intersects with the letter T will be described with reference to FIGS. 5A and 5B.

As shown in Figure 5a, when the expansion joint is crossed in the T-shape, the waterproof member connection is made as shown in Figure 5b.

First, as shown in Figure 6, to provide a high-strength sheet aramid fiber for the waterproof member connection (S100).

Then, cut the aramid fiber or high-strength sheet in the form of a T-shaped (S200), sewn aramid fiber or high-strength sheet of a length corresponding to a straight expansion joint device at each of three points of the aramid fiber or high-strength sheet cut in the T-shaped or Connect by heating adhesive. (S300)

Thus, the waterproof member 300 provided through the aramid fiber sewing or high-strength sheet heating bonding is installed on the support member 100 as shown in FIG.

At this time, the upper and lower lengths of the waterproof member 300 installed in the support member 100 is preferably longer than the upper and lower lengths of the waterproof member 30 made of a conventional rubber material.

Since the elasticity of the aramid fibers or the high-strength sheet is lower than that of the rubber material, the elastic force can be compensated by lengthening the upper and lower lengths of the waterproof member 300 sewn with the aramid fibers or heat-bonded with the high-strength sheet.

At this time, the waterproof member 300 is preferably manufactured in the upper, lower length added more than 10% compared to the actual design.

Thus, the expansion joint having the waterproof member 300 made of aramid fiber or high strength sheet is installed on the bridge top plate, it is possible to prevent the airtightness of the waterproof member from falling even in the section where the expansion joint intersected in the T-shape is installed. Can be.

In installing such a waterproof member 300 to the support member 100, although not shown, it may be installed inclined downward toward both ends of the bridge.

This is to ensure that water or foreign matter contained in the waterproof member is smoothly discharged into the collecting pipes installed at both ends of the bridge.

On the other hand, the waterproof member may be fixed in various forms to the support member in addition to the fastener and bolt configuration shown in FIG.

This will be described with reference to FIGS. 7A and 7B.

Both ends of the waterproof member 300 are located in the fastening groove 120 of the support member 100 and are fixed by the pressing force of the finger plate 200.

At this time, both ends of the waterproof member 300 is provided with a fixing bar 430, as shown in Figure 7a, the fixing bar 430 is located in the fastening groove 120.

The fixing bar 430 is fixed by rolling and bonding or sewing the both ends of the waterproof member 300, the cross-sectional shape thereof may be circular.

After both ends of the waterproof member 300 having the fixing bar 430 installed as described above are positioned in the fastening groove 120, the finger plate 200 is fixed to the support member 100, thereby providing both ends of the waterproof member 300. Since the escape from the fastening groove 120 is blocked at the source, the departure from the support member 100 can be prevented.

Meanwhile, the fastening groove 120 formed to fix both ends of the waterproof member 300 to the support member 100 may be formed at the outermost portion of the support member 100 as shown in FIG. 7B.

At this time, the fixing bar 440 is installed at both ends of the waterproof member 300, the cross-sectional shape of the fixing bar 440 may be a rectangular shape.

By such a configuration, as both ends of the waterproof member 300 are fixed at the position farthest from the clearance between the support members 100, the pressing surface 300a is provided between the finger plate 200 and the support member 100. By providing the fastening force of the waterproof member 300 can be maximized.

As described above, the expansion joint device for a bridge having a waterproof member of a fiber material or a high strength sheet according to the present invention, and a construction method thereof are provided at a position where the expansion joint device is installed using the material of the waterproof member as a fiber material or a high strength sheet. Regardless, the waterproof member can be accurately installed by cutting, sewing, and heat bonding.

That is, regardless of the shape of the cross point where the expansion joint is installed, the waterproof member can be easily cut to correspond to the cross shape, and can minimize the joint, thereby increasing the airtightness of the waterproof member.

In addition, since the durability is excellent, the maintenance management cycle can be extended, thereby improving the economics of the maintenance management cost.

Although the present invention has been described in detail with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and variations are possible within the technical scope of the present invention, and such modifications and variations are obvious to belong to the appended claims.

100: support member 110: anchor
120: fastening groove 130: screw hole
200: finger plate 300: waterproof member (Arimid fiber, high strength sheet)
400: fixing means 410: fastener
411: insertion portion 412: close contact
412a: fixing hole 420: bolt
430,440: fixed bar

Claims (4)

A pair of support members installed between the slab clearances of the bridge deck;
A pair of finger plates installed on the upper ends of the support members, the finger plates being engaged with each other and provided with a play for stretching movement;
It is fixed to the support member is disposed in the slab spacing, the waterproof member for receiving water and foreign matter flowing through the pair of finger plate play:
The waterproof member is a stretchable device for a bridge having a waterproof member of a fiber material or a high strength sheet, characterized in that the fiber or high strength sheet. The method of claim 1,
The waterproof member is cut so as to correspond to the intersection point of the expansion joint and the longitudinal direction of the expansion joint, and then the expansion joint for a bridge having a waterproof member of a fiber material or high-strength sheet, characterized in that connected to each other by sewing. . The method according to claim 1 or 2,
The support member is provided with a fastening groove shielded through the finger plate,
One end is inserted into the fastening groove, the other end is further provided with a fastener bent to the side of the support member,
An end portion of the waterproof member is interposed between the side of the support member and the fastener, the bolt is passed through the fastener and the waterproof member for the bridge with a waterproof member of the fiber material or high strength sheet, characterized in that the screw is fixed to the support member Expansion joint. In the construction method of the expansion joint device for bridges is installed between the slab clearance between the upper plate of the bridge, to construct a waterproof member for receiving and filtering water falling from the upper finger plate,
The waterproof member is provided with a fiber material or a high strength sheet,
The waterproof member is cut so as to correspond to the point where the expansion joint is crossed and the longitudinal direction of the expansion joint, the waterproofing of the fiber material or high-strength sheet, characterized in that it is connected to each other by sewing or connected by heat bonding. Construction method for expansion joints for bridges provided with members.

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