KR102305121B1 - Waterproof expansion joint for partially repairable and easy maintenance using vulcanization rubber sheet - Google Patents

Abstract

The present invention relates to an anti-water leakage expansion joint device with easy maintenance using a vulcanized drainage sheet and a waterproof coating material, which comprises: a pair of frames respectively installed on both slabs in a joint gap of an expansion joint part; and a drainage sheet for inducing drainage of rainwater in a lateral direction.

Description

Water-proof expansion joint for partially repairable and easy maintenance using vulcanization rubber sheet}

The present invention relates to an expansion joint device, and more particularly, to a leak prevention expansion joint device that is easy to maintain by using a vulcanized drain sheet and a waterproof coating material.

In general, an expansion joint device is installed between the slab constituting the upper structure of the bridge and the slab to prevent water leakage while accommodating the expansion and contraction of the slab.

The expansion joint device is installed in the discontinuous part of the bridge, and it smoothly accommodates the displacement and deformation of the upper structure to minimize the occurrence of secondary stress, and at the same time allow the vehicle to safely drive the bridge, the number of bridges, etc. It is a device that plays an important role, such as preventing corrosion of bridge bearings or concrete by flowing into this substructure.

As a prior art of such an expansion joint device, Korean Patent Publication No. 10-0938114 discloses an expansion joint device for a bridge gutter. This prior art includes a pair of fixing members 50 that are fixedly installed on the slab of the main track or sidewalk; An upper and lower wing portion 52 and an upper wing portion 51 and a lower wing portion 52 formed to be assembled by inserting bent portions 63, which are both upper wings of the water receiving member; At least one fixing bolt 55, which is installed buried in the slab at the other side of the fixing member 50, to tightly fix the fixing member 50; and a gutter member (60) that is assembled and installed between the pair of fixing member members (50) and blocks the inflow of gravel or rainwater while accommodating the displacement of the upper plate; It is characterized in that at least one bracket (56) is provided at the upper and lower ends of one side of the fixing member (50) by fastening the fastener to the fastening hole so that the fixing member is tightly fixed and installed in the slab (refer to claim 1).

However, in the prior art, in a state in which the water receiving member 60 is compressed after inserting the hook into the installation ring 64, the connection point of the upper end 62 and the bent portion 63 of the water receiving member 60 is the fixing member ( 50) lowered to be located between the upper wing part 51 and the lower wing part 52, and then raised again to insert the connection point into the upper wing part 51, and again the lower end of the bent part 63 Since it is installed to be inserted into the lower wing portion 52, there is a problem in that the installation work is not easy.

In addition, when even a part of the drip tray member 60 is damaged during use, the whole must be replaced, thereby increasing the maintenance cost.

In addition, when excessive rainwater flows in during heavy rain such as the rainy season, rainwater flows into the inside of the fixing member 50 and the rainwater may leak to the lower side through the lower side of the bent part 63, so that the bridge bearing or concrete is corroded. There is this.

In addition, Japanese Patent Application Laid-Open No. 59-179904, Korean Patent Publication No. 10-1195307, and Korean Utility Model Publication No. 20-184727 are disclosed as being able to solve the above problems. In the case of these prior arts, the problem of water leaking downwards even in heavy rain can be solved, but if even a part corresponding to the drainage sheet is damaged, the whole must be replaced, and when it is difficult to withdraw the drainage sheet, the futa concrete is crushed to There is a problem in that the entire expansion joint has to be replaced.

Republic of Korea Patent Publication No. 10-0938114

The present invention has been devised to solve the above problems, and an object of the present invention is to easily maintain a water leak using a vulcanized drainage sheet and a waterproof coating material that are coupled by sandwiching the drainage sheet from the upper part of a pair of frames to the lower part. To provide an anti-expansion joint device.

In addition, it is to provide a vulcanized drainage sheet that can be easily coupled to the insertion groove of the frame by vulcanizing and adhering a stainless plate to the wing portion of the drainage sheet, and a leak prevention expansion joint device that is easy to maintain using a waterproof coating material.

In addition, the drainage sheet installs a plurality of unit drainage sheets to overlap each other in the transverse direction, so that it is easy to partially replace and thus a vulcanized drainage sheet that saves maintenance costs and a water leak prevention expansion joint device that is easy to maintain using a waterproof coating material is to provide.

According to an example of the present invention, there is provided an easy-to-maintain leak-proof expansion joint device using a vulcanized drainage sheet and a waterproof coating material, comprising: a pair of frames installed on both sides of the slab between the oil fields of the expansion joint; and a drainage sheet installed on both sides of the pair of frames to be inserted and installed to guide and drain the rainwater flowing into the gap in the lateral direction in the lateral direction, wherein the pair of frames are spaced apart from the top to the lower side. Each of the insertion grooves formed to be inclined downward inwardly, the drainage sheet includes a V- or U-shaped body and a pair of blades inclined downwardly from the main body to the outside, and a stainless steel plate is placed on the blades of the drainage sheet. By vulcanization as a whole while installing, the stainless plate is vulcanized and adhered to the blade, and the drain sheet is formed in a shape including a V- or U-shaped body and a pair of blades inclined downwardly from the body to the outside, The inclination of the wing is formed to correspond to the inclination of the insertion groove, so that when the drain sheet is lowered from the upper side to the lower side of the oil gap, the wing can be easily inserted into the insertion groove.

The inner side of the frame is formed so that the lower side of the insertion groove protrudes compared to the upper side, so that when the drain sheet is lowered from the upper side of the oil gap to the lower side, the wing can be easily inserted into the insertion groove.

The drainage sheet is formed of a plurality of unit drainage sheets divided in the transverse direction, and the divided plurality of unit drainage sheets are installed to be connected to each other in a lateral direction, and from the portion of the unit drainage sheet overlapping and connected to each other in the lateral direction. One side may be formed as an upper overlapping part from which a lower side is partially removed, and the other side may be formed as a lower overlapping part from which an upper side is partially removed, and the upper overlapping part may be installed to overlap an upper side of the lower overlapping part.

The lateral length of the upper overlapping portion may be formed shorter than the lateral length of the lower overlapping portion, so that the concave portion may be formed after overlapping due to a difference in length.

A waterproofing material (eg, water-soluble rubber asphalt, polyamide series, etc.) may be applied to the portion where rainwater flows in, including the inner surface of the pair of frames and the upper surface of the drainage sheet.

The upper surface of the pair of frames may be formed with grooves or protrusions elongated in the transverse direction.

The pair of frames may be formed so that the upper side has a thick thickness and the lower side has a thin thickness, so that the upper side protrudes toward the interstitium.

The pair of frames may be provided with stud bolts extending toward the both slabs on the lower side, and the stud bolts may be located below the reinforcing bars of the slab.

According to the present invention, since the drain sheet is inserted from the upper part of the pair of frames to the lower part and combined, the workability can be improved and the working time can be shortened.

In addition, by vulcanizing the stainless plate to the wing portion of the drain sheet, it can be easily coupled to the insertion groove of the frame.

In addition, since a plurality of unit drainage sheets are installed to overlap each other in the transverse direction, and a waterproofing material is applied, leakage of the overlapping portion can be prevented.

In addition, since only the damaged unit drain sheet can be replaced, it is possible to reduce maintenance costs and improve economic efficiency.

1 is an exploded perspective view of a leak prevention expansion joint device according to an example of the present invention;
2 is a front configuration view of a leak prevention expansion joint device according to an example of the present invention;
3 is a plan view and a side view showing a connection part of a unit drain sheet of a drain sheet according to an example of the present invention;
4 is a view showing a state in which the unit drain sheet of the drain sheet according to an example of the present invention is combined;
5 to 8 is a construction process diagram of a leak prevention expansion joint device according to an example of the present invention.
9 is an enlarged cross-sectional view of the drainage sheet constructed as shown in FIG.
10 is a view for replacing a damaged unit drain sheet of the drain sheet according to an example of the present invention;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the components from other components, and the essence, order, or order of the components are not limited by the terms. When a component is described as being “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. may be “connected”, “coupled” or “connected”.

1 is an exploded perspective view of a water leakage prevention expansion joint device according to an example of the present invention, and FIG. 2 is a front configuration view of a water leakage prevention expansion joint device according to an example of the present invention.

1 to 2, the leak-proof expansion joint device 100, which is easy to maintain and maintain using a vulcanized drainage sheet and a waterproof coating material according to an example of the present invention, includes a pair of frames 110, a drainage sheet ( 120) may be included.

The pair of frames 110 may be respectively installed in the slabs 10 between the two sides of the expansion joint formed in the upper structure of the bridge. The pair of frames 110 may be provided with insertion grooves 111 inclined downward inwardly at a point spaced from the upper end to the lower side. That is, the insertion groove 111 may be formed to be inclined downwardly toward the inside of the pair of frames 110 between the gaps. The upper surface of the pair of frames 110 may be formed with concave grooves or protrusions 112 elongated in the transverse direction. The grooves and the protrusions 112 are formed to be elongated in a direction perpendicular to the throttle axis to prevent slippage of a passing vehicle.

The inner side of the pair of frames 110 may be formed so that the lower side of the insertion groove 111 protrudes compared to the upper side. This may allow the wing 122 to be described later to be easily inserted into the insertion groove 111 when the drain sheet 120 is lowered from the upper side to the lower side of the oil interval.

In addition, the pair of frames 110 may be formed so that the upper side has a thick thickness and the lower side has a thin thickness, so that the upper side protrudes toward the interstitium. In the upper thick portion, the aforementioned insertion groove 111 may be formed to a required depth. It may further include stud bolts 113 extending toward both slabs 10 from the lower side of the pair of frames 110 . The stud bolt 113 may be located below the reinforcing bar of the slab 10 . Since the stud bolt 113 is located below the reinforcing bar of the slab 10, it can be firmly fixed. That is, in the case of the prior art, the height of the frame was low, and accordingly, the stud bolt had to be located above the reinforcing bar. This structure has a problem in that it is difficult to firmly couple the frame to repeated impacts by heavy vehicles.

Drainage sheet 120 is installed on both sides of the oil gap side of the pair of frames 110 can be induced and drained in the lateral direction of the rainwater flowing into the oil gap. The drain sheet 120 may include a V-shaped or U-shaped body 121 and a pair of wings 122 inclined downward from both upper ends of the main body 121 to the outside.

By vulcanizing while installing the stainless steel plate 123 on the wings 122 of the drain sheet 120, the stainless steel plate 123 is vulcanized and adhered to the wings 122, and the drain sheet 120 is V-shaped or U-shaped. It may be formed in a shape including a body 121 of a shape and a pair of wings 122 inclined downwardly from both upper ends of the body 121 to the outside.

Here, vulcanization (加黃) may refer to heating by mixing sulfur with raw rubber or diene-based synthetic rubber in order to increase elasticity, heat resistance, chemical resistance, and extensibility of rubber.

The inclination of the wing 122 is formed to correspond to the inclination of the insertion groove 111 , so that when the drain sheet 120 is lowered from the upper side to the lower side of the oil gap, the wing 122 moves along the inner surface of the frame 110 . It can be easily inserted into the insertion groove 111 while being installed.

3 to 4 , the drainage sheet 120 is formed of a plurality of unit drainage sheets 124 divided in the horizontal direction, and the plurality of divided unit drainage sheets 124 overlap each other in the horizontal direction. Connection can be installed. That is, the main body 121 of the unit drain sheet 124 may be installed to be connected to each other.

One side of the unit drainage sheet 124 overlapping and connected to each other in the transverse direction is formed as an upper overlapping portion 125 with a lower side partially removed, and the other side is formed as a lower overlapping portion 126 with a partially removed upper side. and the upper overlapping part 125 may be installed to overlap the upper side of the lower overlapping part 126 . The sum of the thicknesses of the upper overlapping portion 125 and the lower overlapping portion 126 is equal to the sum of the thicknesses of the main body 121 . Each of the upper overlapping portion 125 and the lower overlapping portion 126 may have a thickness of about 1/2 of the thickness of the main body 121 .

The lateral length of the upper overlapping portion 125 is shorter than the lateral length of the lower overlapping portion 126 , so that a recessed portion may be formed on the upper side after overlapping. The connection part of the unit drain sheet 124 can be easily checked by the recess, so that the replacement of the unit drain sheet 124 can be facilitated later.

In addition, the portion where rainwater flows in, including the inner surface of the pair of frames 110 and the upper surface of the drainage sheet 120, is formed by applying a waterproofing material 130 (water-soluble rubber asphalt, polyamide series, etc.) It is possible to block the rainwater flowing into the leak-proof expansion joint device 100 from leaking to the lower part.

The following describes the manufacturing and construction process of the present invention configured as described above.

First, referring to FIGS. 1 to 3 , a pair of frames 110 may be manufactured to correspond to the lateral length of the bridge according to the design drawings. A pair of frames 110 is formed with an insertion groove 111 inclined downwardly inwardly at a point spaced apart from the top downward, and longitudinal grooves or protrusions 112 are formed on the upper side thereof in the transverse direction. In addition, stud bolts 113 extending toward the slab 10 may be provided on the outer surface of the frame 110 , that is, on the lower side of the side opposite to the oil gap, to be spaced apart from each other at regular intervals.

In addition, the drain sheet 120 includes a V-shaped or U-shaped body 121 and a pair of wings 122 inclined downwardly from the upper end of the main body 121 to the outside, and the wings 122 have The stainless plate 123 may be vulcanized. A plurality of protrusions or recesses may be formed on the stainless plate 123 to increase adhesion to the wing 122 . The protrusions or recesses may be formed in the longitudinal direction or in the form of dots. That is, the protrusion or recess may be formed on the side in contact with the wing 122 . Also, an end of the stainless plate 123 may be bent in an arrow shape. The end bent in the shape of an arrow wraps the end of the drain sheet 120 to facilitate insertion, and at the same time, it is possible to completely prevent the separation of the drain sheet 120 from the stainless plate 123 during insertion.

The drain sheet 120 is formed of a plurality of unit drain sheets 124 divided in the transverse direction of a certain length, so that one side of the unit drain sheet 124 has an upper overlapping part 125 with a lower side partially removed, The other side may be manufactured to form a lower overlapping portion 126 from which the upper side is partially removed.

Referring to FIG. 5 , a pair of frames 110 manufactured by the above process may be respectively seated on a pair of slabs 10 spaced apart to form an interval.

In addition, the stud bolts 113 extending on the lower side of the pair of frames 110 are positioned below the reinforcing bar, and the reinforcing bar and the stud bolt are fixed by binding or welding with a wire, then pouring and curing the concrete. can be constructed.

Concrete to be poured may be poured at the same height as the upper surface of the frame 110 .

6 to 8 , the drain sheet 120 may be installed on the pair of frames 110 constructed by the above process. The drain sheet 120 sequentially repeats the process of inserting the wing 122 into the insertion groove 111 while the unit drain sheet 124 moves from the upper side to the lower side of the oil interval in the transverse direction of the frame 110 . can be installed in the other direction. A stainless steel plate 123 is vulcanized and bonded to the wing 122 , and the lower side of the insertion groove 111 is formed to protrude compared to the upper side of the frame 110 , so that the wing 122 is formed inside the frame 110 . It can be easily inserted and installed in the insertion groove 111 while moving along the side. In particular, by vulcanizing the stainless plate 123 to the flexible wing 122 , the wing 122 can be easily inserted into the insertion groove 111 .

In the drainage sheet 120, both ends of the plurality of unit drainage sheets 124 are overlapped, and the process of overlapping the upper overlapping portion 125 of the adjacent unit drainage sheet on the lower overlapping portion 126 of the unit drainage sheet is sequentially performed. can be repeatedly constructed.

Referring to FIGS. 2 and 9 , the upper surface of the drainage sheet 120 sequentially constructed so that the unit drainage sheets 124 at both ends overlap and the inner surface of the frame 110 on the drainage sheet 120 has a waterproofing material 130 ) (e.g., water-soluble rubber asphalt, polyamide series, etc.), it is possible to induce drainage of rainwater while completely blocking the leakage of rainwater.

Meanwhile, referring to FIG. 10 , if any one of the unit drain sheets 124 overlapping both ends is damaged, only the damaged unit drain sheet 124 ′ may be replaced. At this time, since the transverse length of the upper overlapping part 125 is shorter than the transverse length of the lower overlapping part 126 and a recess is formed, the connection part of the unit drainage sheet 124 can be easily checked, so replace It can be easy to work with. That is, even if the waterproofing material 130 is applied, traces of the recesses can be easily found, so that the damaged unit drain sheet 124 ′ can be easily separated and removed.

The replacement operation of the damaged unit drain sheet 124 ′ is to lift the upper overlapping portion 125 of the damaged unit drain sheet 124 ′ upwardly after lightly cutting the waterproofing material 130 at the concave position and rotate it upward. can do it At this time, the upper overlapping portion 125 of the damaged unit drain sheet 124 ′ is separated from the lower overlapping portion 126 of the adjacent unit drain sheet 124a, and the damaged unit drain sheet 124 ′ has a wing ( 122) is separated from the insertion groove 111 of the frame 110, and the lower overlapping portion 126 of the damaged unit drainage sheet 124' is adjacent to the upper overlapping portion 125 of the other unit drainage sheet 124b. can deviate from In this state, the damaged unit drain sheet 124 ′ can be pulled out while further lifting and separated.

In addition, in the reverse order of the separation process of the damaged unit drain sheet 124 ′, a new unit drain sheet is constructed on the part where the damaged unit drain sheet 124 ′ is separated. The new unit drainage sheet can be rotated downwardly with the center of the lower overlapping part 126 of the new unit drainage sheet in a state in which it is positioned under the upper overlapping portion 125 of the other side unit drainage sheet 124b inclined. At this time, the wings 122 of the new unit drainage sheet are coupled to the insertion grooves 111 of the frame 110, and the lower overlapping portion 126 of the new unit drainage sheet is adjacent to the other side unit drainage sheet 124b and the upper overlapping portion. (125), the upper overlapping portion 125 of the new unit drain sheet can be constructed by being seated on the lower overlapping portion 126 of the adjacent unit drain sheet 124a.

Since the replacement operation of the unit drain sheet 124 ′ damaged by the above process is easy, maintenance can be easy, and the waterproofing material 130 can be additionally applied to the new unit drain sheet and the neighboring unit drain sheet.

In the above, even though it has been described that all the components constituting the embodiment of the present invention operate by being combined or combined into one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all of the components may be configured or operated by selectively combining one or more. In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be inherent, unless otherwise stated, excluding other components. Rather, it should be construed as being able to further include other components. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Commonly used terms such as terms defined in the dictionary should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: leak prevention expansion joint device
110: frame
111: insertion groove
112: grooves or stones
113: stud bolt
120: drain sheet
121: body
122: wings
123: stainless steel plate
124: unit drain sheet
125: upper overlapping portion
126: lower overlapping portion
130: waterproofing material

Claims (7)

A pair of frames installed on both sides of the slab between the expansion joints;
Containing; including; a drainage sheet installed on both sides of the pair of frames to be inserted into the oil gap to induce and drain the rainwater flowing into the oil gap in the lateral direction, which is a lateral direction;
The pair of frames each include a slit-shaped insertion groove formed to be inclined downwardly inwardly at a point spaced from the upper end to the lower side,
The drainage sheet includes a V- or U-shaped body and a pair of wings inclined downwardly from the body to the outside,
The stainless plate is vulcanized and adhered to the blade by vulcanization as a whole while installing the stainless plate on the blade of the drain sheet, and the drain sheet is a V- or U-shaped body and a pair of downwardly inclined outward from the body. It is formed in a shape including wings,
The stainless steel plate is installed and vulcanized blades are formed to have an inclination corresponding to the inclination of the insertion groove, so that when the drain sheet is lowered from the upper side to the lower side of the oil gap, it is easily inserted into the insertion groove and installed in close contact,
The drain sheet is formed of a plurality of unit drain sheets divided in the transverse direction, and the plurality of divided unit drain sheets are installed to overlap each other in the transverse direction,
One side of the unit drainage sheet overlapping and connected to each other in the transverse direction is formed as an upper overlapping part with a lower side partially removed, and the other side is formed as a lower overlapping part from which an upper side is partially removed, and the upper overlapping part is an upper side of the lower overlapping part. installed on top of the
A vulcanized drainage sheet and a waterproof coating material for easy maintenance using a vulcanized drainage sheet and waterproof coating material, characterized in that the portion where rainwater flows in and flows, including the inner surface of the pair of frames and the upper surface of the drainage sheet, is coated with a waterproof material as a whole Preventive expansion joints. The method according to claim 1,
The inner side of the frame is formed so that the lower side of the insertion groove protrudes compared to the upper side, so that when the drain sheet is lowered from the upper side to the lower side of the oil gap, the wing is easily inserted and installed into the insertion groove. A leak-proof expansion joint that is easy to maintain using sheets and waterproof coating materials. delete The method according to claim 1,
The lateral length of the upper overlapping part is formed shorter than the lateral length of the lower overlapping part, so that the vulcanized drainage sheet and the waterproof coating material are used for easy maintenance, characterized in that a recess is formed after overlapping by a difference in length. Preventive expansion joints. delete The method according to claim 1,
An easy-to-maintain, leak-proof expansion joint device using a vulcanized drainage sheet and waterproof coating material, characterized in that the upper side surfaces of the pair of frames have long grooves or protrusions formed in the transverse direction. The method according to claim 1,
The pair of frames is provided with stud bolts extending toward the both slabs on the lower side, and the stud bolts are located below the reinforcing bar of the slab. Easy leak-proof expansion joint.

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