KR102545486B1 - Roof structure for soundproof tunnel - Google Patents

Abstract

In the present invention, a soundproof tunnel ceiling structure is disclosed. The soundproof tunnel ceiling structure comprises: main girders which are installed by connecting a plurality of segments between the tops of vertical supports made of steel rectangular pipes and erected on both edges of the road, and are arranged at regular intervals in the progress direction of the road to support the edges of a plurality of soundproof panels; a plurality of cross girders which are installed at regular intervals perpendicular to the progress direction of the road between the main girders to support the edges of the soundproof panels; an outward flange which is fixed at one end of each segment by welding, of which the upper surface is formed flat in alignment with the upper surface of the segment, and which includes a mortise formed inside to communicate with a hollow of the segment, and a plurality of first clearance holes drilled around the mortise; a blank flange which is fixed at the other end (opposite side) of each segment by welding, of which the upper surface is formed flat in alignment with the upper surface of the segment, and which includes a tenon formed integrally inside to be fit into the mortise of an adjacent segment, and second clearance holes corresponding to the first clearance holes drilled around the tenon; and a plurality of brackets which are fixed at the front and back of the main girder by welding, and include third clearance holes formed inside for joining the ends of the cross girders in the longitudinal direction by bolting and nutting. Therefore, the soundproof tunnel ceiling structure can enhance structural strength and stiffness, and increase stress resistance and durability.

Description

Soundproof tunnel ceiling structure {ROOF STRUCTURE FOR SOUNDPROOF TUNNEL}

The present invention relates to a ceiling structure of a tunnel-type soundproof wall that reduces driving noise of a vehicle generated on a road or bridge, and more particularly, is simply and easily assembled by connecting main girder segments in a socket joint method as well as a flange joint at the site. And it relates to a ceiling structure for a mixed-type soundproof tunnel that can be installed, reinforces structural strength and rigidity, and increases stress and durability.

Today, for the purpose of reducing traffic noise around roads or bridges, various soundproofing facilities such as soundproofing dikes, soundproofing walls, soundproofing tunnels, etc., which block or hinder the transmission path of noise, are installed around roads, railroads, or around factories.

Among them, the soundproof tunnel was developed as one of the alternatives due to the limitation of the height of the soundproof wall or soundproof weir due to high-rise apartment buildings and urban density. Since the path is directly blocked, the range of noise blocking up to high floors is increased, and it is preferred as a representative technology that increases the noise reduction effect for high-rise residential areas near roads and downtown traffic facilities where high-rise buildings are concentrated.

These soundproof tunnels are classified into curved, straight, flat, and mixed types according to the formation of walls and ceilings. The curved type is a type with high external force resistance due to the arching effect by designing the entire post in a semicircular or parabolic shape. , and the hybrid type uses straight lines and curves at the same time by installing vertical supports on the wall and designing curves between the ends of the supports.

On the other hand, as shown in Patent Document 1, a locking jaw is formed at the upper end of the left and right side frames constituting the soundproof panel, so that the upper end of the ring-shaped tightening bolt is hooked to the locking jaw and the lower end is passed through the through hole of the H-beam nut. Disclosed is a tunnel soundproof wall that can be tightened and fixed.

However, due to the structural characteristics of fixing the left and right side frames of the soundproof panel to H-beams with ring-shaped tightening bolts, it is inevitable to apply only to standardized soundproof panels, and since the high weight of H-beams constituting the girder places a lot of burden on the lower structure, structural In addition to poor stability, there are problems with design restrictions on the exterior design.

On the other hand, in the case of forming a girder with steel pipe, it is easy to manufacture with an arch-shaped structure with a large radius of curvature as well as light weight, reducing design restrictions. Not only is the construction very difficult, but the axial force acting on the girder is reduced and the moment is increased, so there is a limit to insufficient structural stability.

The background art or prior art described above herein is information possessed by the present inventor or acquired in the process of deriving the present invention, and is only intended to help understand the technical significance of the present invention, prior to the filing of the present invention, the technology to which this invention belongs It is revealed that it does not mean widely known technology in the field, and reference numerals in the prior art are irrelevant to the reference numerals in the present invention.

KR Patent registration 10-1750250 B1 (2017.06.19) KR Patent registration 10-2296587 B1 (2021.08.26) KR Patent registration 10-1406873 B1 (2014.06.05) KR Patent registration 10-2027514 B1 (2019.09.25)

Therefore, the present inventor comprehensively considers the above-mentioned matters and at the same time, in order to solve the technical limitations and problems of the existing soundproof tunnel ceiling structure technology, the main girder segments are connected at the same time with a flange joint and a socket joint method for convenience. As a result of continuous research to develop a soundproof tunnel ceiling structure of a new structure that can be easily assembled and installed, strengthen structural strength and rigidity, and increase stress and durability, the present invention was discovered as a result. came to invent

Therefore, the technical problem and object to be solved by the present invention is to provide a soundproof tunnel ceiling structure that increases stress and durability and enables easy assembly and installation in the field.

Here, the technical problems and objects to be solved by the present invention are not limited to the technical problems and objects mentioned above, and other technical problems and objects not mentioned will be clearly understood by those skilled in the art from the following description.

Specific means according to an aspect of the present invention for effectively achieving a specific technical goal while embodying a new idea for solving the technical problem of the present invention as described above are,

A main girder arranged at regular intervals in the direction of travel of the road to support and support the edge portion of the plurality of sound insulation plates, which is composed of a steel square pipe and installed by connecting several segments between the upper ends of vertical supports erected on both edges of the road. A plurality of horizontal girders installed at regular intervals perpendicular to the traveling direction of the road in order to support and support the edge of the soundproof plate between the main girders, and fixed to one end of both ends of the segment by welding, the upper surface of the segment It is formed flat with the top surface, a lug communicating with the hollow of the segment protrudes on the inside, and a tenon inserted into the mortise of another segment adjacent to the outside is integrally formed, and the first clearance hole and the first clearance hole are formed at the edge around the tenon. A blank flange having a plurality of corresponding second clearance holes, fixed to the front and rear surfaces of the main girder by welding, and a third clearance hole on the inside to join both ends in the longitudinal direction of the transverse girder with bolts and nuts. Suggests a soundproof tunnel ceiling structure characterized by employing including a plurality of brackets with this hole.

Accordingly, according to the present invention, the segments can be simply and easily assembled and installed by connecting the segments in a socket joint method as well as a flange joint in the field, and can also enhance structural strength and rigidity, and increase stress and durability.

In addition, in the present invention, the outward flange and the blank flange of the other adjacent segment are butted with each other while the segment and the other adjacent segment fit the Tenon of the other adjacent segment into the mortise of the segment, and then the bolt is tightened. By inserting it into the first and second clearance holes and tightening it with a nut from the opposite side, workability can be improved and installation and maintenance can be made simple and easy.

In addition, the present invention is formed to cover elastically by elastic deformation while pressing the upper surface of the main girder and the transverse girder and the edge portion facing each other of the sound insulation plate, and a finishing cap having packing fitting grooves formed on the lower surface of both edges, the A packing that is fitted into the packing fitting grooves on both sides of the closing cap to block the gap between the closing cap and the sound insulation board, and a direct screw for fixing the closing cap while pressing the edge portion of the sound insulation board, the main girder and A gasket that blocks and adheres to the gap between the upper surface of the transverse girder and the sound insulation board and a sealant that seals and prevents water from leaking into the gap between both edges of the sound insulation board and the finishing cap makes it more convenient and quick. In addition to being able to assemble, it is possible to prevent noise leakage by firmly blocking the gaps in the connection part of the sound insulation board, as well as to maximize the waterproof effect of preventing leakage of rainwater through the connection part of the sound insulation board.

Furthermore, the gasket not only absorbs the vibration caused by the wind load applied to the soundproof panel to prevent it from being transmitted to the main girder and transverse girder, but also distributes the stress evenly to prevent fatigue failure such as cracks. It can improve sound insulation performance and impact resistance and maximize structural stability.

According to the technical idea and embodiment of the present invention on which a unique solution is based to solve the above technical problems, it is convenient and convenient at the site due to the structural characteristics of connecting the segments of the main girder with a flange joint and a socket joint method at the same time. Easy to assemble and install.

In other words, Tenon at one end of the segments of the main girder is inserted into the mortis at the other end of the other segments, and the outward flange and the blank flange are connected by bolting, so that not only can they be fixed and assembled more firmly, but also Structural strength and rigidity can be enhanced, and stress and durability can be increased.

Here, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a front view showing a soundproof tunnel ceiling structure according to an embodiment of the present invention.
2 is a perspective view showing a part of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
3 is a cross-sectional view showing a local part of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
4 is an exploded front cross-sectional view of a local part of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
5 is a longitudinal cross-sectional view showing a partially assembled state of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
6 is an exploded perspective view of a local part of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
7 is a longitudinal cross-sectional view showing a disassembled local part of a soundproof tunnel ceiling structure according to an embodiment of the present invention.
8 and 9 are partial enlarged views of another example showing the connection portion of the main girder in FIG.
10 is a front view showing a soundproof tunnel ceiling structure according to another embodiment of the present invention.
11 is a perspective view showing a part of a soundproof tunnel ceiling structure according to another embodiment of the present invention.
12 is a cross-sectional view showing a local part of a soundproof tunnel ceiling structure according to another embodiment of the present invention.
13 is a cross-sectional view showing a local portion of a soundproof tunnel ceiling structure according to another embodiment of the present invention in isolation.
14 is a longitudinal cross-sectional view showing a local part of a soundproof tunnel ceiling structure according to another embodiment of the present invention.
15 is a longitudinal cross-sectional view showing a local part of a soundproof tunnel ceiling structure according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Prior to this, the terms to be described below are defined in consideration of functions in the present invention, which specifies that they should be interpreted as concepts consistent with the technical spirit of the present invention and meanings commonly used or commonly recognized in the art.

In addition, if it is determined that a detailed description of a known function or configuration related to the present invention may obscure the gist of the present invention, the detailed description will be omitted.

The accompanying drawings may be exaggerated or simplified in part to help explain and understand the configuration and operation of the technology, and each component on the drawings does not exactly match the actual size and shape. reveal

In addition, in this specification, the term and / or is meant to include a combination of a plurality of related items described or any item among a plurality of related items described, and when a certain part includes a certain component, this is particularly the opposite. Unless otherwise stated, it means that other components may be further included rather than excluding other components.

That is, terms such as 'include' or 'have' described in this specification mean that a feature, number, step, operation, component, part, or combination thereof exists, but one or the It should be understood that the above does not preclude the possibility of the presence or addition of other features or numbers, step operating components, parts, or combinations thereof.

In addition, terms such as top, bottom, top, bottom, or top, bottom, top, bottom, front and rear, left and right are used for convenience to distinguish the relative positions of each component. For example, an upper part in the drawing may be named or referred to as an upper part, a lower part may be named or referred to as a lower part, a longitudinal direction may be named or referred to as a front-back direction, and a width direction may be named or referred to as a left-right direction.

Also, terms such as first and second may be used to describe various components. That is, terms such as first and second may be used for the purpose of distinguishing only one element from another element. For example, a first component may be referred to as a second component without departing from the scope of the present invention, and the second component may also be referred to as a first component.

[Example 1]

1 to 9, the main elements constituting the soundproof tunnel ceiling structure according to another embodiment of the present invention are the main girder 100, the transverse girder 200, the left flange 102, and the light flange 103. ) and a bracket 130.

The main girder 100 is installed by connecting several segments 101 between the upper ends of vertical supports 10 erected on both edges of the road.

In addition, a plurality of main girders 100 are arranged in parallel at regular intervals in the traveling direction of the road in order to stably support and support the edge portions of the plurality of sound insulation boards 20.

Here, both ends of the main girder 100 in the longitudinal direction can be fixed with the upper end of the vertical support 10 built on the foundation on both edges of the road by bolting or by using a separate bracket, or by welding. .

In addition, the main girder 100 is made of a steel square tube having a hollow inside to stably support and support the sound insulation board 20 thereon.

For example, the main girder 100 may be formed by cold forming, such as extrusion, into a square tube shape having a thickness and cross section that guarantees bending rigidity from a material such as aluminum alloy.

On the other hand, the sound insulation board 20 serves to reduce noise and transmit the load acting on the ceiling of the sound insulation tunnel to the main girder 100, the transverse girder 200 and the vertical support 10, PMMA resin, PC resin, A transparent plate made of a material such as acrylic or laminated glass may be used.

The transverse girder 200 is composed of a steel square tube to stably support and support the edge portion of the sound insulation board 20 thereon, and is installed in plurality at regular intervals perpendicular to the direction of travel of the road between the main girders 100. has been

In addition, bolt holes 210 are drilled at both ends of the transverse girder 200 to communicate with the third clearance hole 131 of the bracket 130.

Here, the transverse girder 200 may be formed by cold forming, such as extrusion, in a square tube shape having a thickness and cross section that guarantees bending rigidity from a material such as aluminum alloy.

A plurality of brackets 130 are welded to the front and rear surfaces of the segments 101 to support both ends in the longitudinal direction of the transverse girders 200 installed between the main girders 100.

In addition, a third clearance hole 131 is drilled inside the bracket 130 to connect both ends of the transverse girder 200 in the longitudinal direction by tightening them with bolts and nuts.

That is, the bracket 130 is formed of a 'c'-shaped bracket that can support and fix the horizontal girder 200 made of square tubes.

The outward flange 110 is one of both ends of the segments 101 to physically adhere to and fix between the segments 101 and 101' of the main girder 100 using bolts B and nuts N. It is fixed by welding at one end.

And the top surface of the outward flange 103 is formed flat with the top surface of the segment (101).

The left flange 102 is one of both ends of the segments 101 to physically adhere to and fix between the segments 101 and 101' of the main girder 100 using bolts B and nuts N. It is joined by welding parallel to the cross section of the segment 101 at the end.

In addition, the upper surface of the left flange 102 is formed flat with the upper surface of the segment 101, and the lower surface and left and right side surfaces are formed in a shape protruding from the edge of the segment 101.

In addition, a plurality of first clearance holes 112 are formed at the outer edge of the left flange 102 .

The light flange 103 is physically close to and fixed between the segments 101 and 101 'of the main girder 100 using a bolt B and a nut N, and the other of the ends of the segments 101 It is welded parallel to the cross section of the segment 101 at the opposite end of the side.

In addition, the upper surface of the light flange 103 is formed flat with the upper surface of the segment 101, and the lower surface and left and right side surfaces are formed in a shape protruding from the edge of the segment 101.

In addition, a plurality of second clearance holes 122 corresponding to the first clearance hole 112 are drilled at the outer edge of the light flange 103 .

As shown here, a stiffener 104 having a reinforcing function such as a plurality of ribs may be attached to the left flange 102 and the right flange 103 to increase strength and rigidity and prevent buckling.

In addition, the size of the left flange 102 and the right flange 103 and the number of first clearance holes 112 and second clearance holes 122 can be appropriately changed as needed, of course.

In the soundproof tunnel ceiling structure according to the embodiment of the present invention configured as described above, the left flange 102 of the segment 101 and the light flange 103 of the other segment 101' adjacent to the left flange 103 are abutted to each other to provide first and second clearance. Adjacent to one segment 101 by fitting the bolts B into the first and second clearance holes 112 and 122 by matching the holes 112 and 122 and tightening them with nuts N from the opposite side. It is possible to connect and assemble the other segments (101') more firmly, as well as to reduce the weight.

In addition, the contact area between the segment 101 and the sound insulation board 20 is large, which is advantageous when the sound insulation board 20 is stretched and contracted, and it is possible to reduce construction costs as well as shorten the period because a separate hardware is not required.

On the other hand, as shown in FIGS. 6 and 7, the soundproof tunnel ceiling structure according to the embodiment of the present invention includes a closing cap 30, a packing 40, a direct screw 50, a gasket 60, and a sealant 70. may further include.

The closing cap 30 is formed to cover elastically by elastic deformation while pressing the upper surfaces of the main girder 100 and the transverse girder 200 and the edge portions of the sound insulation board 20 facing each other.

In addition, packing fitting grooves 31 for coupling the packing 40 are formed on both edges of the closing cap 30, respectively.

Here, the closing cap 30 may be extruded and molded into a profile having a thickness and cross section that guarantees bending rigidity from a material such as a highly elastic aluminum alloy that is elastically bent by elastic deformation.

The packing 40 is fitted into both packing fitting grooves 31 of the closing cap 30 to block the gap between the upper surface of the sound insulation board 20 and the closing cap 30, respectively.

That is, the packing 40 is inserted into the packing fitting groove 31 to prevent noise from leaking or rainwater leaking into the gap between the sound insulation board 20 and the closing cap 30, and the lower part is elastic. As it is elastically deformed by, it is formed in a shape that maintains a state in close contact with the sound insulation board 20.

For example, the packing 40 is made in the form of a strip having a certain length, and the shape of its cross section can maintain a state in which the upper part is slidably inserted into the packing fitting groove 31 and does not escape, and the other lower part It may be formed in a tube shape having a hollow so as to be elastically deformed by elasticity when in close contact with the upper surface edge portion of the sound insulation board 20 to maintain a tightly closed state.

Here, the packing 40 may be made of an elastic material such as rubber or silicone that elastically contracts or expands by an external force, and may be fitted into the packing fitting groove 31 in a dovetail joint manner.

The direct screw 50 serves to ensure that the closing cap 30 is clamped and fixed to the main girder 100 and the transverse girder 200 in a state of pressing the edge portion of the sound insulation board 20.

That is, the direct screw 50 places the edge portion of the sound insulation board 20 on top of the main girder 100 and the transverse girder 200 and tightens and pressurizes the sound insulation board 20 with the closing cap 60 attached to the main girder 100. It can be fixed firmly on top of the girder 100 and the transverse girder 200.

The gasket 60 is formed in a strip shape having a certain thickness, and serves to block the gap between the upper surfaces of the main girder 100 and the transverse girder 200 and the sound insulation board 20, respectively, and provide adhesiveness and waterproofness to adhere to each other. .

That is, the gasket 60 blocks the gap between one sound insulation board 20 and another sound insulation board 20 adjacent to one sound insulation board 20 adjacent to each other to prevent leakage of noise and inflow of rainwater. It is attached as if to cover a gap occurring in the connection portion between the other sound insulation boards 20.

In addition, the gasket 60 attenuates vibration due to wind load applied to the sound insulation board 20 and minimizes stress concentration to prevent fatigue failure such as cracks.

That is, the gasket 60 is provided between the upper surface of the main girder 100 and the transverse girder 200 and the sound insulation board 20 in order to improve the sound insulation performance and impact resistance of the sound insulation board 20 by imparting damping performance and to maximize structural stability. are provided in each.

Here, the gasket 60 is preferably formed of a material that can obtain the effect of improving waterproofness and water resistance while the sound insulation board 20 is more stably adhered to the upper surfaces of the main girder 100 and the transverse girder 200.

In addition, the gasket 60 is preferably formed of a material capable of improving workability by enhancing mutual adhesion and adhesiveness, strengthening fixing force, and preventing slippage during installation.

For example, a waterproof membrane made of thermoplastic rubber (TPE) or acrylonitrile butadiene rubber (NBR) with excellent dimensional stability and low cracking and high-tenacity yarn are embedded to provide a strong waterproof layer and strong tensile performance that flexibly responds to movement. It may be made of a composite sheet having a multi-layer structure.

In addition, as the gasket 60, it is preferable to employ a so-called butyl waterproof tape in which unvulcanized butyl rubber is uniformly coated and adhered to the back side of a high elasticity special film, but is not limited thereto, and acrylic resin, polyurethane resin, polyethylene resin, It may be made of synthetic rubber or the like.

The sealant 70 serves to seal and prevent water from leaking into the gap between both edges of the sound insulation board 20 and the closing cap 30.

That is, the sealant 70 is applied and sealed to absorb and relieve mutual expansion, vibration, and deformation in addition to the function of watertightening the gap between the sound insulation board 20 and the closing cap 30.

Here, the sealant 70 may be made of silicone, a rubber material, a soft or high-viscosity liquid rubber composition, a liquid or ointment adhesive, or the like.

The waterproof tape 80 is attached to prevent leakage of noise and inflow of rainwater by blocking a gap between one sound insulation board 20 and another sound insulation board 20 adjacent thereto.

Here, as the waterproof tape 80, it is preferable to employ a so-called butyl waterproof tape in which unvulcanized butyl rubber is uniformly coated and adhered to the back side of a highly elastic special film, but is not limited thereto, and acrylic resin, polyurethane resin, polyethylene resin, It may be made of synthetic rubber or the like.

Therefore, when installing the soundproof tunnel ceiling structure, it is possible to improve workability, and assembling is simple and easy, it is possible to reduce construction costs by shortening working time and minimizing manpower.

In addition, the gasket 60 absorbs and attenuates the vibration caused by the wind load applied to the sound insulation board 20 and evenly distributes the stress to prevent fatigue failure such as cracks, thereby improving the sound insulation performance and impact resistance of the sound insulation tunnel, structural strength and By strengthening the rigidity, durability as well as stability can be increased.

In addition, leaks can be prevented by effectively blocking rainwater from leaking through the gaps of the sound insulation boards 20.

[Example 2]

Meanwhile, as shown in FIGS. 10 to 15, the main elements constituting the soundproof tunnel ceiling structure according to another embodiment of the present invention are the main girder 100, the transverse girder 200, the outward flange 110, and the blank. It includes a flange 120 and a bracket 130.

Here, among the components related to the soundproof tunnel ceiling structure according to another embodiment of the present invention, components having the same or similar action and effect as those of the above-described embodiment use the same reference numerals, and a detailed description thereof is given in Example 1 and the drawings. Omit if shown in .

The main girder 100 is installed by connecting several segments 101 between the upper ends of vertical supports 10 erected on both edges of the road.

In addition, a plurality of main girders 100 are arranged in parallel at regular intervals in the traveling direction of the road in order to stably support and support the edge portions of the plurality of sound insulation boards 20.

Here, both ends of the main girder 100 in the longitudinal direction can be fixed with the upper end of the vertical support 10 built on the foundation on both edges of the road by bolting or by using a separate bracket, or by welding. .

In addition, the main girder 100 is made of a steel square tube having a hollow inside to stably support and support the sound insulation board 20 thereon.

For example, the main girder 100 may be formed by cold forming, such as extrusion, into a square tube shape having a thickness and cross section that guarantees bending rigidity from a material such as aluminum alloy.

On the other hand, the sound insulation board 20 serves to reduce noise and transmit the load acting on the ceiling of the sound insulation tunnel to the main girder 100, the transverse girder 200 and the vertical support 10, PMMA resin, PC resin, A transparent plate made of a material such as acrylic or laminated glass may be used.

The transverse girder 200 is composed of a steel square tube to stably support and support the edge portion of the sound insulation board 20 thereon, and is installed in plurality at regular intervals perpendicular to the direction of travel of the road between the main girders 100. has been

In addition, bolt holes 210 are drilled at both ends of the transverse girder 200 to communicate with the third clearance hole 131 of the bracket 130.

Here, the transverse girder 200 may be formed by cold forming, such as extrusion, in a square tube shape having a thickness and cross section that guarantees bending rigidity from a material such as aluminum alloy.

The outward flange 110 is one of both ends of the segments 101 to physically adhere to and fix between the segments 101 and 101' of the main girder 100 using bolts B and nuts N. It is fixed by welding at one end.

And the top surface of the outward flange 110 is formed flat with the top surface of the segment (101).

In addition, a mortise 111 communicating with the hollow of the segment 101 is formed inside the outward flange 110, and a plurality of first clearance holes 112 are drilled at the edges around the mortise 111. .

The blank flange 120 physically adheres to and fixes between the segments 101 and 101' of the main girder 100 using a bolt B and a nut N, and the other of the ends of the segments 101 It is fixed by welding at the opposite end.

And the upper surface of the blank flange 120 is formed flat with the upper surface of the segment 101.

In addition, on the inner side of the outer surface of the blank flange 120, a tenon 121 inserted into the mortice 111 of another segment 101' adjacent to it protrudes integrally, and the edge is centered on the tenon 121. A plurality of second clearance holes 122 corresponding to the first clearance hole 112 are bored.

Further, on the inner surface of the blank flange 120, a lug 123 is protrudingly formed to reinforce the connection strength by being inserted into the hollow of the segment 101 and fixed by welding.

A plurality of brackets 130 are welded to the front and rear surfaces of the segments 101 to support both ends in the longitudinal direction of the transverse girders 200 installed between the main girders 100.

In addition, a third clearance hole 131 is drilled inside the bracket 130 to connect both ends of the transverse girder 200 in the longitudinal direction by tightening them with bolts and nuts.

That is, the bracket 130 is formed of a 'c'-shaped bracket that can support and fix the horizontal girder 200 made of square tubes.

Meanwhile, as shown in FIGS. 12 and 13, the soundproof tunnel ceiling structure according to an embodiment of the present invention includes a closing cap 30, a packing 40, a direct screw 50, a gasket 60, and a sealant 70. may further include.

The closing cap 30 is formed to cover elastically by elastic deformation while pressing the upper surfaces of the main girder 100 and the transverse girder 200 and the edge portions of the sound insulation board 20 facing each other.

In addition, packing fitting grooves 31 for coupling the packing 40 are formed on both edges of the closing cap 30, respectively.

Here, the closing cap 30 may be extruded and molded into a profile having a thickness and cross section that guarantees bending rigidity from a material such as a highly elastic aluminum alloy that is elastically bent by elastic deformation.

The packing 40 is fitted into both packing fitting grooves 31 of the closing cap 30 to block the gap between the upper surface of the sound insulation board 20 and the closing cap 30, respectively.

That is, the packing 40 is inserted into the packing fitting groove 31 to prevent noise from leaking or rainwater leaking into the gap between the sound insulation board 20 and the closing cap 30, and the lower part is elastic. As it is elastically deformed by, it is formed in a shape that maintains a state in close contact with the sound insulation board 20.

For example, the packing 40 is made in the form of a strip having a certain length, and the shape of its cross section can maintain a state in which the upper part is slidably inserted into the packing fitting groove 31 and does not escape, and the other lower part It may be formed in a tube shape having a hollow so as to be elastically deformed by elasticity when in close contact with the upper surface edge portion of the sound insulation board 20 to maintain a tightly closed state.

Here, the packing 40 may be made of an elastic material such as rubber or silicone that elastically contracts or expands by an external force, and may be fitted into the packing fitting groove 31 in a dovetail joint manner.

The direct screw 50 serves to ensure that the closing cap 30 is clamped and fixed to the main girder 100 and the transverse girder 200 in a state of pressing the edge portion of the sound insulation board 20.

That is, the direct screw 50 places the edge portion of the sound insulation board 20 on top of the main girder 100 and the transverse girder 200 and tightens and pressurizes the sound insulation board 20 with the closing cap 60 attached to the main girder 100. It can be fixed firmly on top of the girder 100 and the transverse girder 200.

The gasket 60 is formed in a strip shape having a certain thickness, and serves to block the gap between the upper surfaces of the main girder 100 and the transverse girder 200 and the sound insulation board 20, respectively, and provide adhesiveness and waterproofness to adhere to each other. .

That is, the gasket 60 blocks the gap between one sound insulation board 20 and another sound insulation board 20 adjacent to one sound insulation board 20 adjacent to each other to prevent leakage of noise and inflow of rainwater. It is attached as if to cover the gap occurring in the connection portion between the other sound insulation boards (20).

In addition, the gasket 60 attenuates vibration due to wind load applied to the sound insulation board 20 and minimizes stress concentration to prevent fatigue failure such as cracks.

That is, the gasket 60 is provided between the upper surface of the main girder 100 and the transverse girder 200 and the sound insulation board 20 in order to improve the sound insulation performance and impact resistance of the sound insulation board 20 by imparting damping performance and to maximize structural stability. are provided in each.

Here, the gasket 60 is preferably formed of a material that can obtain the effect of improving waterproofness and water resistance while the sound insulation board 20 is more stably adhered to the upper surfaces of the main girder 100 and the transverse girder 200.

In addition, the gasket 60 is preferably formed of a material capable of improving workability by enhancing mutual adhesion and adhesiveness, strengthening fixing force, and preventing slippage during installation.

For example, a waterproof membrane made of thermoplastic rubber (TPE) or acrylonitrile butadiene rubber (NBR) with excellent dimensional stability and low cracking and high-tenacity yarn are embedded to provide a strong waterproof layer and strong tensile performance that flexibly responds to movement. It may be made of a composite sheet having a multi-layer structure.

In addition, as the gasket 60, it is preferable to employ a so-called butyl waterproof tape in which unvulcanized butyl rubber is uniformly coated and adhered to the back side of a high elasticity special film, but is not limited thereto, and acrylic resin, polyurethane resin, polyethylene resin, It may be made of synthetic rubber or the like.

The sealant 70 serves to seal and prevent water from leaking into the gap between both edges of the sound insulation board 20 and the closing cap 30.

That is, the sealant 70 is applied and sealed to absorb and relieve mutual expansion, vibration, and deformation in addition to the function of watertightening the gap between the sound insulation board 20 and the closing cap 30.

Here, the sealant 70 may be made of silicone, a rubber material, a soft or high-viscosity liquid rubber composition, a liquid or ointment adhesive, or the like.

The waterproof tape 80 is attached to prevent leakage of noise and inflow of rainwater by blocking a gap between one sound insulation board 20 and another sound insulation board 20 adjacent thereto.

Here, as the waterproof tape 80, it is preferable to employ a so-called butyl waterproof tape in which unvulcanized butyl rubber is uniformly coated and adhered to the back side of a highly elastic special film, but is not limited thereto, and acrylic resin, polyurethane resin, polyethylene resin, It may be made of synthetic rubber or the like.

In the soundproof tunnel ceiling structure according to the embodiment of the present invention configured as described above, the outward flange of the segment 101 is fitted into the mortise 111 of the segment 101 while the tenon 121 of the other adjacent segment 101' is fitted. (110) and the blank flanges 120 of the adjacent segments 101' butt against each other to make the first and second clearance holes 112 and 122 match, and the bolts B are screwed into the first and second clearance holes. It is possible to connect and assemble one segment 101 and another adjacent segment 101' more firmly by fitting it into (112) (122) and tightening it with a nut (N) from the opposite side.

That is, Tenon 121 at one end of the segment 101 is inserted into the mortise 111 at the other end of the adjacent segment 101', and the outward flange 110 and the blank flange 120 are formed. Since it is fastened with bolts (B) and nuts (N), it is possible to simply and easily assemble and install in the field, as well as strengthen structural strength and rigidity, and increase stress and durability.

In addition, both ends of the transverse girder 200 in the longitudinal direction can be installed between the main girders 100 by connecting them to the bracket 130 by tightening bolts and nuts.

Therefore, when installing the soundproof tunnel ceiling structure, it is possible to improve workability, and assembling is simple and easy, it is possible to reduce construction costs by shortening working time and minimizing manpower.

In addition, the gasket 60 absorbs and attenuates the vibration caused by the wind load applied to the sound insulation board 20 and evenly distributes the stress to prevent fatigue failure such as cracks, thereby improving the sound insulation performance and impact resistance of the sound insulation tunnel, structural strength and By strengthening the rigidity, durability as well as stability can be increased.

In addition, leaks can be prevented by effectively blocking rainwater from leaking through the gaps of the sound insulation boards 20.

On the other hand, the present invention is not limited by the above-described embodiments (embodiment) and the accompanying drawings, and can be variously modified and applied in various ways not illustrated within the scope without departing from the technical spirit of the present invention, as well as each It is clear to those of ordinary skill in the art that the components can be widely applied by substitution of components and changes to other equivalent embodiments.

Therefore, contents related to the modification and application of the technical features of the present invention should be interpreted as being included within the technical spirit and scope of the present invention.

100: main girder 101: segment
102: left flange 103: right flange
104: stiffener
110: outward flange 111: mortise
112: first clearance hole 120: blank flange
121: Tenon 122: Second clearance hole
123: lug 130: bracket
131: third clearance hole 200: transverse girder
10: vertical support 20: sound insulation board
30: closing cap 31: packing fitting groove
40: packing 50: direct screw
60: gasket 70: sealant
80: waterproof tape

Claims (5)

delete delete A plurality of segments 101 are connected and installed between the upper ends of the vertical supports 10 erected on both edges of the road made of steel square tubes, but the road to support and support the rims of the sound insulation boards 20 placed side by side at regular intervals Main girders 100 arranged at regular intervals in the traveling direction of; A plurality of transverse girders 200 installed at regular intervals perpendicular to the traveling direction of the road between the main girders 100 to support and support the edge portions of the sound insulation boards 20; It is fixed by welding to one end of both ends of the segment 101, the upper surface is formed flat with the upper surface of the segment 101, and a mortise 111 communicating with the hollow of the segment 101 is formed on the inside, an outward flange 110 having a plurality of first clearance holes 112 formed at an edge around the mortise 111; It is fixed to the other end of both ends of the segment 101 by welding, the upper surface is formed flat with the upper surface of the segment 101, and a lug 123 communicating with the hollow of the segment 101 is formed on the inside. and a plurality of Tenon 121 inserted into the mortise 111 of the other segment 101' adjacent to the outside are formed integrally and correspond to the first clearance hole 112 at the edge around the Tenon 121. a blank flange 120 in which two second clearance holes 122 are drilled; It is fixed to the front and rear surfaces of the segment 101 by welding, respectively, and a plurality of third clearance holes 131 are drilled inside to join by tightening both ends in the longitudinal direction of the transverse girder 200 with bolts and nuts. bracket 130; It is formed to cover the upper surface of the main girder 100 and the transverse girder 200 and the edge portions facing each other of the sound insulation boards 20 elastically by elastic deformation while pressing each other, and the packing fitting grooves are respectively formed on the lower surfaces of both edges. a closing cap 30 formed with (31); Packing 40 that is fitted into both packing fitting grooves 31 of the closing cap 30 and blocks the gap between the closing cap 30 and the sound insulation board 20; A direct screw 50 for fixing the closing cap 30 by tightening it while pressing the rim portion of the sound insulation board 20; Gaskets 60 that block and close the gaps between the upper surfaces of the main girders 100 and the transverse girders 200 and the sound insulation boards 20, respectively; A sealant 70 that seals and prevents water from leaking into the gap between both edges of the sound insulation board 20 and the closing cap 30; It includes a waterproof tape 80 attached to the edge portion of the sound insulation boards 20 placed side by side at regular intervals to block the gap between the sound insulation boards 20;
The segment 101 and other segments 101' adjacent thereto,
While fitting the Tenon 121 of another adjacent segment 101' into the mortise 111 of the segment 101, the outward flange 110 of the segment 101 and the other adjacent segment 101' A soundproof tunnel ceiling structure characterized in that the blank flanges 120 are brought together, and then bolts are fitted into the first and second clearance holes 112 and 122 and tightened with nuts from opposite sides to join.
delete delete

Images