KR102198081B1 - A tool for water-proof member fixing of expansion joint for bridge and the construction method using the same - Google Patents

Abstract

The present invention relates to a waterproof member fastener of an expansion joint for a bridge, and more specifically, a means for installing a waterproof member on a bridge structure is separately provided, so that the force generated when the bridge is stretched and contracted is not directly transmitted to the waterproof member. The waterproof member of the expansion joint for bridges, which minimizes damage and damage to the waterproof member by preventing the waterproof member from being damaged or damaged, and to make the fastening force to the waterproof member firmly established, and to increase the efficiency for maintenance work through easy detachment of the waterproof member. It is about fasteners.
To this end, in the waterproof member fastener of an expansion joint for a bridge that is installed on a structure of a bridge facing each other to receive water or foreign substances falling from the ground, it is installed on each of the structures, and is directed toward one side. A body provided so that the end of the waterproof member can be inserted into the opened insertion groove; A crimping member positioned in the insertion groove of the body and provided to be in close contact with the end surface of the waterproof member; The crimping member while moving on the insertion groove of the body It provides a waterproof member fastener for a bridge expansion joint comprising: a restraining means for compressing the end of the waterproof member to the body by applying a force pushing the member.

Description

A tool for water-proof member fixing of expansion joint for bridge and the construction method using the same}

The present invention relates to a waterproof member fastener of an expansion joint for a bridge, and more specifically, a waterproof member fastener of an expansion joint for a bridge, and a construction method thereof, which strengthens the waterproof member fastening force and minimizes damage and damage to the waterproof member. It is about.

In general, in a relatively long bridge with multiple piers, the upper plate of the bridge is divided into several parts in the length direction of the bridge in order to cope with the expansion and contraction of the bridge due to temperature changes, and expansion joints are made between each divided upper plate. Install the device.

The expansion joint is a device that is installed on the upper part of the bridge such as the joint or extension of the bridge to accommodate contraction and expansion caused by the difference in temperature of the concrete. It also plays a role of preventing the inflow of rainwater, preventing rust of steel girders*bridge bearings and corrosion of concrete.

Hereinafter, a brief look at the conventional expansion joint device will be given with reference to FIG. 1.

As shown in Fig. 1, the expansion joint is a pair of support members 10, which are arranged facing each other at a predetermined distance and provided with an anchor a on each outer surface, and each of the support members ( 10) A pair of finger plates 20 installed at the upper horizontal end and arranged to engage with each other, and water falling between the finger plates 20 by being installed in the spaced space formed by the support member 10 being spaced apart from each other It is composed of a waterproof member 30 made of a rubber material that accommodates or foreign substances.

As shown in FIG. 2, the expansion joint device of this configuration is installed at regular intervals at each point of the bridge upper plate to facilitate vehicle passage and prevent damage to the bridge while performing the expansion and contraction action.

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

However, the above-described conventional expansion joint has the following problems.

First, there is a problem that it is difficult to maximize the fastening force of the waterproof member 30 to the bridge structure.

As shown in FIG. 1, both ends of the waterproof member 30 are interposed between the finger plate 20 and the support member 10 in a horizontal state, and then bolts (B) fastened from the upper side of the finger plate 20 It is fixed to, and this is because the moving force of the finger plate 20 may be concentrated on the fastening part of the waterproof member 30 during the reciprocating movement of the finger plate 20, so there is a risk that the waterproof member 30 may be damaged. there was.

That is, when the bridge is stretched and contracted, as the stretching force is directly transmitted to the waterproof member 30, there is a high risk of damage.

For example, in the process of expanding the waterproof member 30 by spreading the finger plate 20 to both sides, the through hole of the waterproof member 30 through which the bolt (B) is passed is gradually increased while interfering with the bolt (B). Due to the occurrence of a gap between the and the bolt (B), the airtightness decreases, as well as the problem that it is difficult to smoothly stretch and contract the waterproof member 30.

Further, as the periphery of the waterproof member 30 constantly interferes with the bolt (B), the waterproof member 30 may be torn and separated from the finger plate 20 and the support member 10.

Second, since it is not easy to disassemble the waterproof member 30 from the expansion joint, there is a problem that the convenience of maintenance work for the waterproof member 30 is poor.

In addition, there is a problem that it is difficult to periodically clean foreign substances accumulated in the waterproof member 30 for a long time.

Republic of Korea registration number 10-1530663

The present invention was conceived to solve the above problems, and an object of the present invention is to improve the fastening structure of the waterproof member to filter out water or foreign matter so that the fastening force can be firmly maintained even in the continuous expansion and contraction of the waterproof member. In addition, it is intended to provide a waterproof member fastener of an expansion joint for a bridge and a construction method thereof so that the waterproof member maintenance work and cleaning work can be easily performed by allowing the waterproof member to be easily detached.

In order to achieve the above object, the present invention is a waterproof member fastener for a bridge expansion joint for fixing a waterproof member that receives water or foreign matter falling from the ground by being installed on a structure of a bridge facing each other, A body installed in the structure and provided to insert the end of the waterproof member into the insertion groove opened toward one side; a crimping member positioned in the insertion groove of the body and provided to be in close contact with the end surface of the waterproof member; the body It provides a waterproof member fastener for a bridge expansion joint comprising: a restraining means for compressing the end of the waterproof member to the body by acting on a force pushing the compression member while moving on the insertion groove of the.

In this case, the body is a fixed surface fixed to the bridge; a constraining surface extending from the fixed surface and to which the other end of the waterproof member is in close contact; formed spaced apart from the constraining surface to form an insertion groove, and a fastening hole formed It includes a surface, and it is preferable that a plurality of irregularities are formed on the restraining surface.

At this time, it is preferable that the fastening hole forms a thread, and the restraining means is a bolt screwed into the fastening hole and in close contact with the pressing member.

In addition, it is preferable that a plurality of irregularities are formed in a portion of the pressing member that faces one end surface of the waterproof member.

As another example of the present invention for achieving the above object, in the waterproof member fastener construction method of an expansion joint, the steps of fixing a pair of waterproof member fastener fixing surfaces to a slab of a bridge; Inserting each of the pressing members into the insertion grooves of the member fasteners; Inserting both ends of the waterproof member between the pressing member and the restraining surface, so that each of the both ends of the waterproof member faces the unevenness of the pressing member; Contact surface Provides a waterproof member fastener construction method for a bridge expansion joint comprising a step of: inserting a bolt through the crimping member to press the end of the waterproof member to the restraining surface.

The waterproof member fastener and its construction method of the expansion joint for a bridge according to the present invention have the following effects.

First, the waterproof member is installed through a waterproof member fastener separately installed in the bridge structure, so that the influence of the force generated when the bridge is stretched can be minimized on the waterproof member.

That is, the waterproof member is not directly installed on the expansion joint, but is installed through a separate medium, so that the load acting on the waterproof member can be minimized.

Accordingly, even if the extension and contraction of the bridge occurs for a long time, damage to the waterproof member can be minimized, and the maintenance period of the waterproof member can be increased.

Second, the waterproof member fastener has an insertion groove into which the end of the waterproof member is inserted, and a pressing member for compressing the end of the waterproof member is provided in the insertion groove, and a plurality of irregularities is formed in the pressing member. It can maximize the compressive force on the waterproof member.

Accordingly, there is an effect of being able to firmly maintain the fastening force of the waterproof member.

Third, since the waterproof member can be easily dismantled through the waterproof member fastener, the dismantling operation for maintenance of the waterproof member can be easily performed.

That is, when the bolt is released to release the pressing force of the pressing member that has compressed the end of the waterproof member, the fastening force of the waterproof member can be easily released, and thus the waterproof member can be easily dismantled.

Accordingly, there is an effect of increasing the efficiency of the waterproof member replacement work and maintenance work.

Further, a cleaning operation for removing foreign substances accumulated on the waterproof member can be easily performed, and such cleaning operation can be performed periodically.

1 is a perspective view showing an expansion joint for a bridge according to the prior art
2 is a plan view showing a bridge with an expansion joint for a bridge installed
Figure 3 is an exploded view showing the waterproof member fastener of the expansion joint for a bridge according to a preferred embodiment of the present invention
Figure 4 is a flow chart showing a waterproof member fastener construction method for a bridge expansion joint according to a preferred embodiment of the present invention
Figure 5 is a cross-sectional view of the main part showing a state in which the waterproof member fastener is installed of the expansion joint for a bridge according to a preferred embodiment of the present invention
6 is an enlarged view of a portion "A" of FIG. 4
7 is an exploded view showing a first modified example of the waterproof member fastener of the expansion joint for a bridge according to a preferred embodiment of the present invention
Figure 8 is a cross-sectional view showing a first modified example of the waterproof member fastener of the expansion joint for a bridge according to a preferred embodiment of the present invention is installed
Figure 9 is a cross-sectional view showing the main part of the state in which the second modified example of the waterproof member fastener of the expansion joint for a bridge according to a preferred embodiment of the present invention is installed.

Terms and words used in the present specification and claims are not limited to the usual or dictionary meanings, and the inventor is based on the principle that the concept of terms can be appropriately defined in order to explain his or her invention in the best way. It should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Hereinafter, a waterproof member fastener (hereinafter referred to as a'waterproof member fastener') of an expansion joint for a bridge according to a preferred embodiment of the present invention will be described with reference to FIGS. 3 to 6.

The waterproof member fasteners are installed separately on the bridge structure, so that the force generated when the bridge is stretched and contracted is not directly transmitted to the waterproof member.

Accordingly, it is possible to minimize damage to the waterproof member due to the bridge expansion and contraction action.

In addition, by forming irregularities in the portion where the waterproof member is fixed, the force of compressing the waterproof member is maximized to maximize the fixing force for the waterproof member.

As shown in Figure 3, the waterproof member fastener is configured to include a body 100, a compression member 200, and a restraint means 300.

The body 100 constitutes the exterior of the waterproof member fastener, and is preferably fixed to the lower part of the bridge upper slab.

The body 100 is preferably composed of a fixed surface 110, a close contact surface 120, and a restraining surface 130.

The fixing surface 110 is a portion fixed to the slab, and is preferably formed flat so that it can be stably fixed to the slab.

In this case, fixing holes 111 through which both sides are penetrated are formed in the fixing surface 110 so that fixing means such as bolts can pass.

The contact surface 120 forms an insertion groove (H) into which the end of the waterproof member (S) is inserted together with the restraining surface (130), and is formed downward from the fixing surface (110).

Fastening holes 121 through which both sides are penetrated are formed in the contact surface 120.

The fastening hole 121 is a portion to which the restraining means 300 is fastened, and is preferably formed as a screw hole.

As shown in FIG. 3, a stepped portion 122 is preferably formed at the lower end of the contact surface 120.

The stepped portion 122 is a configuration for preventing the compression member 200 from easily falling from the insertion groove (H), it is possible to increase the convenience of fixing the waterproof member (S). Step 122 is formed bent toward the insertion groove (H) from the lower end of the contact surface 120 as shown in FIG.

In addition, the constraining surface 130 forms an insertion groove H that is opened downward along with the contact surface 120 and is formed to face the contact surface 120.

At this time, among the restraining surfaces 130, a surface facing the contact surface 120, that is, the surface to which the waterproof member S is in close contact, is formed with a plurality of irregularities in the height direction of the restraining surface 130.

The irregularities are referred to as non-slip protrusions 131 for convenience of description.

When fixing the waterproof member (S) through such a configuration of the anti-slip protrusion 131, it is possible to maximize the fastening force of the waterproof member (S) by increasing friction.

At this time, of the restraining surface 130, the surface on which the anti-slip protrusion 131 is formed is preferably formed to be convex toward the insertion groove (H).

This is to increase the fastening force to the end of the waterproof member S, and the convex shape is preferably formed in a wave shape in the height direction of the constraining surface 130.

Next, the pressing member 200 is a configuration for pressing the end of the waterproof member (S) located in the insertion groove (H) to the close contact surface.

There is a gap between the end of the waterproof member (S) located in the insertion groove (H) and the insertion groove (H), and the pressing member 200 compensates for the gap and closes the end of the waterproof member (S) to the contact surface 120 ).

The pressing member 200 is formed to be inserted through the opened lower portion of the insertion groove (H).

Through the configuration of the compression member 200, one end surface of the waterproof member S inserted into the insertion groove H is opposed to the compression member 200, and the other end surface of the waterproof member S is a restraining surface ( It is opposed to the non-slip protrusion 131 of 130).

A plurality of irregularities is also formed on a surface of the pressing member 200 that faces the restraining surface 130.

The unevenness also increases the frictional force with the end of the waterproof member S to maximize the fastening force to the end of the waterproof member S.

The unevenness (凹凸) is referred to as a pressing protrusion 210 for convenience of explanation, and the pressing protrusion 210 corresponds to the non-slip protrusion 131.

Incidentally, one side of the pressing member 200 facing the non-slip protrusion 131 is also formed to be convex in a wave shape, and the waveform of the pressing member 200 corresponds to the waveform of the constraining surface 130.

With this configuration, when the pressing member 200 is in close contact with the constraining surface 130, the convex surface and the concave surface of each other can be effectively compressed.

Meanwhile, it is preferable that a seating groove 220 is formed in the center of the other surface of the pressing member 200 as shown in FIG. 3.

The seating groove 220 is a configuration in which the end of the bolt to be described later is located, and is configured so that the force transmission of the bolt can evenly act on the compression member 200.

It is preferable that the seating groove 220 corresponds to the position of the fastening hole 121 formed on the contact surface 120.

Next, the restraint means 300 is a means for fixing the waterproof member S to the waterproof member fastener.

That is, the restraint means 300 pushes the crimp member 200 through the fastening hole 121 and causes the crimp member 200 to press the end of the waterproof member S to the restraining surface 130.

The restraining means 300 is preferably a bolt, and is screwed into the fastening hole 121.

At this time, the restraint means 300 includes a washer (W) for maximizing the fastening force.

Hereinafter, a construction method for installing a waterproof member fastener and fastening a waterproof member having the above configuration will be described with reference to FIGS. 4 to 6.

Before fixing the waterproof member fastener to the slab, it is preferable to clean the slab fixing surface using a water jet or the like.

In addition, it is preferable to apply a concrete deterioration prevention coating on the slab.

In addition, it is preferable to perform concrete mortar as necessary.

Thereafter, the fixing surface 110 of the waterproof member fastener is in close contact with the slab bottom surface of the bridge upper plate, and then fixed using fixing means (F) such as bolts. (S100)

At this time, the fixing means (F) is fixed to the slab through the fixing hole 111, as shown in FIGS. 5 and 6.

The waterproof member fasteners fixed to the slab are provided as a pair of spaced apart from each other, and the insertion groove H formed by the constraining surface 130 and the contact surface 120 is opened downward. At this time, a pair of fasteners are installed so that the constraining surfaces 130 face each other, and the contact surface 120 is located on the outermost side as shown in FIG. 6. Accordingly, the fastening hole 121 of the contact surface 120 may be disposed outside the waterproof member S, so that the operator can easily fasten the bolt 300 to the fastening hole 121, Waterproof member (S) construction and replacement can be easily carried out.

Next, the waterproof member S is fixed to the waterproof member fastener fixed to the slab as described above.

To this end, the pressing member 200 is inserted into the insertion groove H formed at one end of the waterproof member fastener on one side of the waterproof member S. (S200)

At this time, the pressing protrusion 210 of the pressing member 200 is opposed to the non-slip protrusion 131 of the constraining surface 130.

At this time, since the lower end of the pressing member 200 interferes with the stepped portion 122, it is not easily separated from the insertion groove (H). In addition, since the stepped jaw 122 can support the pressing member 200, when an operator fixes the pressing member 200, one-handed assembly may be possible.

Next, one end of the waterproof member S is inserted into the insertion groove H of the waterproof member fastener (S30)).

At this time, one end of the waterproof member S is located between the pressing member 200 and the restraining surface 130.

That is, one end surface of the waterproof member S is opposed to the crimping protrusion 210 of the crimping member 200, and the other end surface of the waterproof member S is opposed to the non-slip protrusion 131 of the constraining surface.

Next, fasten the bolt 300 with the fastening hole 121 of the contact surface 120. (S400)

Thereafter, by tightening the bolt 300, the bolt 300 moves on the insertion groove H and is in close contact with the seating groove 220 of the pressing member 200.

Thereafter, by continuing tightening of the bolt 300, the bolt 300 pushes the pressing member 200 and compresses the end of the waterproof member S to the restraining surface 130.

At this time, the end of the waterproof member (S) is fixed by pressing the compression protrusion 210 of the compression member 200 and the non-slip protrusion 131 of the restraining surface 130 as shown in FIG. 6.

In particular, since the end of the waterproof member S is compressed along the wave shape of the compression member 200 and the restraining surface 130, the fastening force of the waterproof member to the end of the waterproof member S is maximized. .

When the fixing of one end of the waterproof member S is completed as described above, the other end of the waterproof member S is fixed to the fastener on the other side of the waterproof member.

Since the method of fastening the other end of the waterproof member is the same as the method of fixing one end of the waterproof member, a detailed description will be omitted.

Accordingly, as shown in FIG. 6, the fixing of the waterproof member to the slab of the bridge upper plate is completed, and the force generated when the bridge is stretched or contracted is not directly transmitted to the waterproof member, so that damage to the waterproof member can be minimized.

Accordingly, it is possible to increase the maintenance and replacement cycle of the waterproof member.

In addition, since the waterproof member (S) can be simply unscrewed or tightened for disassembling and coupling the waterproof member (S), it is possible to increase the convenience of a series of operations for maintenance and replacement of the waterproof member (S).

Meanwhile, the waterproof member fastener may be modified differently depending on the installation position.

A first modified example of such a waterproof member fastener will be described with reference to FIGS. 7 and 8.

Prior to the description, reference numerals are used for the above-described components, and detailed descriptions will be omitted.

The waterproof member fastener includes a flat fixing surface 110 opposite to the installation surface, a restraining surface 130 and a close contact surface 120 for fastening the waterproof member.

At this time, the constraining surface 130 and the contact surface 120 form an insertion groove (H) into which the end of the waterproof member is inserted, and the opening direction of the insertion groove (H) is a direction horizontal to the fixing surface 110 Is formed by

That is, in the above-described embodiment, if the installation surface of the waterproof member fastener is the bottom surface of the bridge upper plate, the first modified example describes the case where the installation surface of the waterproof member fastener is the side surface of the structure.

As shown in FIG. 8, the waterproof member fastener according to the first modified example is installed on the side of the structure, and the waterproof member fastener according to the above-described preferred embodiment is installed on the bottom surface of the structure.

This, as described above, depends on the location of the installation surface, and the waterproof member fastener of the present invention can be constructed without being greatly restricted by the installation surface.

Meanwhile, the waterproof member fastener may serve to combine and integrate the separated waterproof member.

This is not for installing the waterproof member fasteners to the structure, but for use as an intermediary means for coupling the separated waterproof members to each other.

This will be referred to as a second modified example, and will be described with reference to FIG. 9.

As shown in FIG. 9, a waterproof member (S) is provided separately, and each of the waterproof members (S) is fixed to a waterproof member fastener installed on the slab.

Thereafter, the separated waterproof member S is connected to provide an accommodation space for accommodating foreign substances and water.

To this end, the cut joint portion of the waterproof member S is inserted into the insertion groove H of the waterproof member fastener.

Thereafter, the bolt 300 is tightened to cause the compression member 200 to compress and fix the joint of the waterproof member.

Through such installation, it is possible to easily connect the separated waterproof member, and it is possible to increase the airtightness of the joint.

As described so far, the waterproof member fastener according to the present invention increases the convenience of fastening the waterproof member to the bridge structure, and minimizes damage and damage to the waterproof member by preventing the force acting upon the bridge expansion and contraction from directly acting on the waterproof member. .

Accordingly, there is an advantage in that the convenience of the maintenance work of the waterproof member is increased, and the maintenance work period is increased.

In the above, the present invention has been described in detail with respect to the described embodiments, but it is obvious to those skilled in the art that various modifications and modifications are possible within the scope of the technical idea of the present invention, and it is natural that such modifications and modifications fall within the scope of the appended claims.

100: body 110: fixed surface
111: fixed hole 120: close contact surface
121: fastening hole 122: stepped
130: restraint surface 131: non-slip protrusion
200: crimping member 210: crimping protrusion
220: mounting groove 300: restraint means (bolt)
S: Waterproof member H: Insertion groove
W: Washer F: Fixing means

Claims (5)

In the waterproof member fastener of an expansion joint for a bridge, which is installed on a structure of a bridge facing each other and fixes a waterproof member that receives water or foreign substances falling from the ground,
A body installed in each of the structures and provided to allow an end of the waterproof member to be inserted into the insertion groove opened toward one side;
A crimping member positioned in the insertion groove of the body and provided to be in close contact with one end surface of the waterproof member;
Containing means for compressing the end of the waterproof member to the body by acting on a force pushing the compression member while moving on the insertion groove of the body,
The body,
A fixed surface fixed to the bridge;
A restraining surface extending from the fixing surface and having the other end surface of the waterproof member in close contact with each other;
It is formed spaced apart from the constraining surface to form an insertion groove, and a contact surface in which a fastening hole is formed: includes,
A plurality of irregularities are formed on the restraining surface,
The fastening hole forms a thread,
The restraining means is a bolt screwed into the fastening hole and in close contact with the pressing member,
A plurality of irregularities are formed in a portion of the pressing member that faces one end surface of the waterproof member,
The body is installed in a pair on the bridge so that the restraint surfaces face each other,
The lower end of the contact surface forms a stepped step bent toward the insertion groove,
A waterproof member fastener for an expansion joint for a bridge, characterized in that the irregularities formed on the restraint surface and the irregularities formed on the compression member are formed in a wave shape in the height direction of the constraint surface.



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