KR102202700B1 - Non-drain sheet type finger type expansion joint - Google Patents

Abstract

An objective of the present invention is to provide a finger-shaped expansion joint of a drain-free sheet type. According to the present invention, the finger-shaped expansion joint of a drain-free sheet type comprises: a base plate (10) having an upward support (12) formed on one end thereof, and a first finger plate (P) provided on the other end of the outside thereof to be fastened by a bolt (B); a support block (20) installed on an upper portion of the outside of the base plate (10) to separate the first finger plate (P) and the base plate (10) from each other to form an expansion space (22); a cover plate (30) installed on a deck slab (1′) on an opposite side where the base plate (10) is not installed such that one end thereof is extended to be overlapped with the base plate (10) and form a downward support (32) at the end, and the other end of the outside thereof is coupled to stick to the lower surface of a second finger plate (P′) by the bolt (B) to finish a finger groove (P1′) of the second finger plate (P′) from below; and elastic foam (40) installed in the expansion space (22) corresponding to an area between the support block (20) and the downward support (32) of the cover plate (30) to finish a finger groove (P1) of the first finger plate (P) from below. Accordingly, when the finger-shaped expansion joint of a drain-free sheet type is used, rainwater or a foreign substance does not enter between finger plates without a separate drain sheet, and maintenance and repair are not required.

Description

Non-drain sheet type finger type expansion joint

The present invention relates to a non-drainage sheet-type finger-type expansion joint that can effectively improve the disadvantages caused by the drainage seat portion of an expansion joint installed to connect the slabs of a bridge.

In general, in a relatively long bridge with a large number of piers, the upper plate of the bridge is divided into several parts in the longitudinal direction of the bridge in order to cope with the expansion and contraction of the bridge due to temperature changes, and expansion and contraction between each divided upper plate slab Install a joint.

These expansion joints have been developed in various structures. As an example, the expansion joint includes a pair of support members arranged to face each other at a predetermined distance and provided with an anchor on each outer surface, and a pair of fingers engaged with each other in a horizontal end of the support member. It consists of a plate and a drain sheet made of rubber material disposed between the support members on both sides.

The drainage sheet disposed between the supporting members on both sides may be integrally formed by vulcanization bonding with the supporting member by vulcanization depending on the structure or type of the expansion joint. After being separately manufactured, both sides (both ends) in the longitudinal direction It may be coupled to the vertical end of the support member.

The drainage sheet of such an expansion joint is to prevent rainwater or foreign matter from entering between the support members on both sides, and as a prior art, Korean Patent Nos. 10-0743043, 10-0662035, and 10-1374606 Thus, the configuration of the drainage sheet has been disclosed.

However, the structure of the drainage sheet as in the prior art is difficult or cumbersome to install on both sides of the support member, and when foreign matter accumulates in the drainage sheet, the drainage treatment cannot be performed smoothly, and maintenance such as cleaning and replacement is not performed regularly. It is a required situation.

In addition, in the existing expansion joint, the bolt for fixing the finger plate is easily released due to the vehicle traffic load and vibration, and this has a problem that causes a secondary traffic accident.

KR No. 10-0743043, (Y1 2007. 07. 26.) KR No. 10-0662035, (Y1 2006. 12. 27.) KR No. 10-1374606, (Y1 2014. 03. 17.)

Accordingly, in the present invention, a new technology was created in order to solve the problems of the prior art, and the watertight structure of the expansion joint that had previously constituted a drainage sheet was actively improved to prevent rainwater or foreign matter from being discharged between the finger plates. It is a problem of the present invention to provide a non-drainable sheet type finger-type expansion joint that can be prevented.

In addition, it is an object of the present invention to provide a non-drainage sheet type finger-type expansion joint device that has excellent workability and is capable of mitigating the impact due to expansion and contraction behavior and preventing bolt loosening.

As a specific means for solving the problem of the above invention, in the non-drained sheet type finger-type expansion joint for expanding and connecting between the upper plate slabs of the bridge, it is installed on one upper plate slab (1), and an upward support ( 12) is formed, the first finger plate (P) is provided to the bolt (B) fastening to the other end of the base plate 10; A support block (20) installed on the outer upper side of the base plate (10) and provided to form an expansion/contraction space (22) by spaced apart between the first finger plate (P) and the base plate (10); The base plate 10 is installed on the upper slab 1'on the opposite side to which the base plate 10 is not installed, so that one end extends so as to overlap the base plate 10, and a downward support 32 is formed at the end, and the outer other end is a bolt (B ) A cover plate 30 which is in close contact with the bottom of the second finger plate P'to close the finger groove P1' of the second finger plate P'from the bottom; And it is installed in the expansion space portion 22 corresponding to the region between the downward support 32 and the support block 20 of the cover plate 30 to close the finger groove (P1) of the first finger plate (P) from the bottom. It characterized in that it includes; elastic foam (40) provided to be.

At this time, the bolts (B) coupled to the outer ends of the first and second finger plates are fastened upward from the outer bottom surface of the base plate 10 and the bottom surface of the cover plate 30, respectively, so that the bolt head part is a mortar layer (2). It is characterized in that it is installed in a state of being embedded and installed.

In addition, a drainage chamber 50 is formed in a region between the upward support 12 and the downward support 32 to collect fluid flowing into the expansion and contraction space 22, and the drainage chamber 50 includes an upward support ( It is connected to a drainage tube fitting 52 installed in 12), and a drain pipe 54 is connected to the tube fitting 52 to discharge the fluid collected in the drainage chamber 50.

In addition, a drainage groove 34 is further formed on the upper surface of the cover plate 30 in the width direction of the bridge, or a drainage plate having a drainage groove 34 is stacked.

In addition, a protective cover 42 is installed on the upper surface of the elastic foam 40, and external exposure of the elastic foam 40 through the finger groove P1 of the first finger plate P by the protective cover 42 It characterized in that it is provided to be blocked.

According to the non-drainage sheet-type finger-type expansion joint device according to the present invention, the watertight structure of the expansion joint, which has previously constituted a drainage sheet, is actively improved to prevent rainwater or foreign matter from being discharged between the finger plates. Drainage sheets for draining water and loading foreign substances are omitted, so workability is excellent, and maintenance costs and hours can be significantly reduced.

In addition, since the bolts that bind both ends of the finger plate are made in a downwardly indenting type, there is no bolt loosening phenomenon. Therefore, there is an advantage of preventing accidents such as tire puncture caused by loosening of bolts occurring in existing expansion joints.

1 is an exploded perspective view showing a preferred embodiment of a non-drained sheet type finger type expansion joint provided by the present invention.
Figure 2 is a block diagram showing the internal assembly structure of the non-drainage sheet type finger type expansion joint according to the present invention.
Figure 3 is a block diagram showing a non-drainage sheet type finger-type expansion joint according to the present invention in plan view.
4 is a block diagram showing a tube fitting and a drain pipe of the non-drainage sheet type finger-type expansion joint according to the present invention.
Figure 5 is a block diagram showing a drainage groove of the non-drainage sheet type finger type expansion joint according to the present invention.
6 is a block diagram showing a protective cover of a non-drained sheet type finger-type expansion joint according to the present invention.

Hereinafter, the present invention will be described in more detail according to specific embodiments of the accompanying drawings. The following drawings according to the configuration examples of the present invention are examples for specifically explaining the configuration and effects, and thereby the technical scope of the present invention is not limited or changed. Therefore, it will be natural to those skilled in the art that various modifications can be implemented within the scope of the technical idea of the present invention based on these embodiments.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another member interposed therebetween. .

1 is an exploded perspective view showing the disassembled and disassembled drainage sheet type finger type expansion joint device according to the present invention, and FIG. 2 is a cross-sectional view showing the internal assembly structure of the drainage sheet type finger type expansion joint device installed on a bridge, Is a plan view of FIG. 2.

The present invention relates to a non-drainage sheet-type finger-type expansion joint device that expands and connects between the upper slabs of a bridge, which is constructed in a structure in which water or foreign substances are not discharged between the finger plates on both sides without a separate drainage sheet. As a whole, it is characterized by consisting of a main configuration including a base plate 10, a support block 20, a cover plate 30, and an elastic foam 40.

The base plate 10 according to the present invention is installed on one upper plate slab 1, so that an upward support 12 is formed at one end, and a first finger plate P is fastened to the other end bolts B do. The base plate 10 is formed in a flat plate, the upward support 12 is integrally bent at one end, and a support block 20 to be described later is installed at the other end.

And, the lower part of the base plate 10, the inner frame (2a) is formed by welding or fastening by bolts, and when the mortar layer (2) poured at the end of the upper slab (1) is hardened, the bridge is securely installed. do.

Stepped portions are formed at both ends of the base plate 10 by the upward support 12 and the support block 20 to collect fluid including rainwater flowing between the finger plates to block leakage to the outside.

On the other hand, according to the non-drained sheet type finger type expansion joint of the present invention, the bolt (B) coupled to one end of the base plate (10) to bind the first finger plate (P) is outside of the base plate (10) It is configured to be fastened upward from the bottom, and therefore, the bolt (B) head part is embedded in the mortar layer (2) and external exposure is prevented, and the bolt loosening phenomenon due to the bridge expansion behavior and vehicle traffic vibration does not occur at all.

The support block 20 according to the present invention is installed on the outer upper side of the base plate 10 to which the bolts (B) are coupled, and spaced apart between the first finger plate (P) and the base plate (10) It is provided to form 22. The support block 20 has a plurality of through holes, and the through holes are fastened with bolts B installed to fix the first finger plate P.

In this way, the first finger plate (P) and the base plate (10) are lifted upward by a distance corresponding to the height of the support block (20) to form an elastic space part 22 in a non-contact state, and the elastic space part 22 ), the downward support 32 and the elastic foam 40 of the cover plate 30 to be described later are accommodated, and a moving space in which the downward support 32 of the cover plate 30 to be described later can expand and contract in the transverse direction. Will be provided.

The cover plate 30 according to the present invention is installed on the upper plate slab 1'on the opposite side where the base plate 10 is not installed, and extends so that one end overlaps the base plate 10, while the downward support 32 at the end thereof Is formed, and the outer other end is coupled to be in close contact with the bottom of the second finger plate P'by a bolt (B) to close the finger groove P1' of the second finger plate P'from the bottom.

At this time, at least one of the upper end of the upward support 12 and the bottom surface of the cover plate 30 or the lower end of the downward support 32 and the upper surface of the base plate 10 are in contact with each other.

The cover plate 30 is connected by welding or bolting to the inner frame frame 2a in the mortar layer 2 of the upper slab 1 ′, and the bolt B is upward from the bottom of the cover plate 30 As it is fastened with the bolt head part embedded in the mortar layer 2, external exposure is prevented, and the bolt loosening phenomenon due to bridge expansion behavior and vehicle traffic vibration is prevented.

As described above, due to the overlapping structure of the base plate 10 and the cover plate 30, the inflow of fluid including rainwater is blocked through the gap between the first and second finger plates (P) (P'). Even if a part of the fluid flows between the upper surface of the cover plate 30 and the bottom of the first and second finger plates (P) (P') due to the expansion and contraction behavior of the cover plate 30, the fluid rides on the upper surface of the cover plate 30 to the top of the base plate 10. It is collected by the newly formed space portion 22 and is drained through a drainage chamber 50 and a drainage pipe 54 to be described later.

The elastic foam 40 according to the present invention is installed in the elastic space part 22 corresponding to the area between the downward support 32 of the cover plate 30 and the support block 20, so that the first finger plate P It is provided to close the finger groove (P1) from the bottom.

In FIG. 3, the elastic foam 40 is formed of an elastic body including rubber, and at this time, the elastic foam 40 is formed in an expanded size compared to the height direction of the support block 20 so that the elastic space part 22 ) In a compressed state.

As such, the elastic foam 40 supports the first finger plate P from the bottom and finishes the finger hole P1, in particular, the lateral movement of the downward support 32 according to the expansion and contraction behavior of the cover plate 30 While allowing the space between the support block 20 and the downward support 32 to be kept airtight in a compressed state, the phenomenon that fluid including rainwater leaks between the support block 20 and the downward support 32 is tightly prevented. Blocked.

4 is a block diagram showing a tube fitting and a drain pipe of the non-drainage sheet type finger type expansion joint according to the present invention, in the area between the upward support 12 and the downward support 32, the expansion space part 22 inside. A drainage chamber 50 is formed to collect the flowing fluid. That is, in the drainage chamber 50, a bottom surface and an upper surface are partitioned by the base plate 10 and the cover plate 30, and both side surface partitions are formed by the upper support 12 and the lower support 32, The shape is formed to have a roughly square shape.

In addition, the drainage chamber 50 is connected to a drainage tube fitting 52 installed on the upward support 12, and a drain pipe 54 is connected to the tube fitting 52 to be collected in the drainage chamber 50. It is provided to discharge the fluid.

At this time, the drainage tube fittings 52 are spaced apart in a plurality in the width direction of the bridge, and each drainage tube fitting 52 is connected to the drainage pipe 54 so that the fluid collected in the drainage chamber 50 is outside the bridge. It is provided to extend into.

Accordingly, even if some of the fluid flowing between the first and second finger plates (P) (P') leaks into the expansion and contraction space part 22, it is quickly collected into the drainage chamber 50 and then the tube fitting 52 and the drain pipe Since water is quickly discharged to the outside through 54, damage including contamination and corrosion of the base plate 10 and the cover plate 30 to the fluid is prevented.

5 is a block diagram showing a drainage groove of a non-drainage sheet-type finger-type expansion joint according to the present invention, a drainage groove 34 may be formed on the upper surface of the cover plate 30 in the width direction of the bridge. According to the drawings, the drainage groove 34 is shown in a state formed in one place, but is not limited thereto and may be spaced apart in a plurality.

Alternatively, the drainage groove 34 may not be integrally formed on the upper surface of the cover plate 30, and a drainage plate having the drainage groove 34 may be stacked on the cover plate 30.

Accordingly, when the gap between the second finger plate (P') and the cover plate (30) is separated due to the bridge expansion and contraction behavior and the vehicle traffic vibration, and a fluid containing rainwater is introduced, the drainage groove (34) collects the infiltrating fluid. Since the drainage treatment is quickly carried out in the width direction of the bridge, it is possible to suppress the fluid from flowing into the expansion and contraction space portion 22 as much as possible.

6 is a block diagram showing a protective cover of a non-drained sheet type finger-type expansion joint according to the present invention, a protective cover 42 is installed on the upper surface of the elastic foam 40, by the protective cover 42 It is provided so that external exposure of the elastic foam 40 through the finger groove P1 of the first finger plate P is blocked. The protective cover 42 is formed of a hard plate compared to the elastic foam 40 containing synthetic resin or metal.

Accordingly, the elastic foam 40 is finished by the protective cover 42 to be protected from the external environment including direct sunlight, external temperature, and rain, so that its elasticity is maintained long and from the first finger plate (P). The applied load is uniformly applied to the upper surface of the elastic foam 40 through the protective cover 42, and deformation such as swelling of the corresponding portion of the finger groove P1 is prevented.

The present invention as described above has a structure in which a separate drainage sheet for draining water and loading foreign substances can be omitted due to the structure blocking the lower part of the first and second finger plates P) (P') during construction. It is improved so that it is possible to provide an expansion joint with excellent workability and no need for maintenance.

As described above, in the detailed description of the present invention, the most preferred embodiments of the present invention have been described, but various modifications may be implemented within the scope not departing from the technical scope of the present invention. It is not limited to the examples, and the scope of protection from the technologies in the claims to be described later and from these technologies to equivalent technical means should be recognized.

1, 1': top slab
10: base plate 12: upward support
20: support block 22: expansion space
30: cover plate 32: downward support 34: drain groove
40: elastic foam 42: protective cover
50: drain chamber 52: tube fitting 54: drain pipe
B: bolt P,P': first and second finger plates P1,P1': finger groove

Claims (5)

In the non-drained sheet type finger-type expansion joint device that expands and connects between the upper slabs of a bridge,
A base plate 10 installed on one upper slab 1, having an upward support 12 formed at one end, and having a first finger plate P fastened to the other end of the outside with a bolt B;
A support block (20) installed on the outer upper side of the base plate (10) and provided to form an expansion/contraction space (22) by spaced apart between the first finger plate (P) and the base plate (10);
The base plate 10 is installed on the upper slab 1'on the opposite side to which the base plate 10 is not installed, so that one end extends so as to overlap the base plate 10, and a downward support 32 is formed at the end, and the outer other end is a bolt (B ) A cover plate 30 which is in close contact with the bottom of the second finger plate P'to close the finger groove P1' of the second finger plate P'from the bottom; And
It is installed in the elastic space 22 corresponding to the region between the downward support 32 and the support block 20 of the cover plate 30 to close the finger groove P1 of the first finger plate P from the bottom. Includes; elastic foam 40 provided;
A drainage sheet-type finger-type expansion joint device, characterized in that a drainage groove 34 is further formed on the upper surface of the cover plate 30 or a drainage plate having a drainage groove 34 is laminated.
The method of claim 1,
The bolts (B) coupled to the outer ends of the first and second finger plates are fastened upward from the outer bottom surface of the base plate 10 and the bottom surface of the cover plate 30, respectively, so that the bolt head is embedded in the mortar layer 2 Non-drained sheet type finger type expansion joint, characterized in that installed in the installed state.
The method of claim 1,
A drainage chamber 50 is formed in a region between the upward supporter 12 and the downward supporter 32 to collect fluid flowing into the expansion and contraction space 22, and the drainage chamber 50 includes the upper supporter 12 A non-draining sheet type, characterized in that it is connected to a drainage tube fitting 52 installed in the tube fitting 52, and a drain pipe 54 is connected to the tube fitting 52 to discharge the fluid collected in the drainage chamber 50 Finger type expansion joint.
delete The method of claim 1,
A protective cover 42 is installed on the upper surface of the elastic foam 40, and external exposure of the elastic foam 40 through the finger grooves P1 of the first finger plate P is blocked by the protective cover 42. No drainage sheet type finger-type expansion joint device, characterized in that provided.

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