KR102591611B1 - Post support apparatus for soundproof tunnel - Google Patents

Abstract

The present invention relates to a strut support device for a soundproof tunnel disposed at the boundary between supports and struts on both sides of a bridge or road, comprising: an upper plate installed at the end of the strut; A lower plate fixed to a support so as to face the upper plate and having a hemispherical groove of constant curvature curved in the thickness direction at the center of the upper surface; A bearing block forming a hemispherical curved surface of the same curvature at the lower end to correspond to the hemispherical groove, fixed to the upper plate and extending into the hemispherical groove; and a negative reaction force resistance plate coupled to the upper surface of the lower plate and having a through hole that allows insertion of the bearing block through.
In particular, the present invention can accommodate the rotational behavior of the support by fastening the bearing block to a spherical joint structure so that it can roll and rotate in the hemispherical groove of the lower plate.

Description

Post support apparatus for soundproof tunnel {Post support apparatus for soundproof tunnel}

The present invention relates to a prop support device for a soundproof tunnel, and more specifically, to a prop support device for a soundproof tunnel that can accommodate rotational behavior and improve structural stability.

In general, soundproof tunnels are installed to maintain a comfortable residential environment by absorbing or reflecting various noises generated during the running of railways or vehicles and blocking them from being transmitted to surrounding residential areas.

Recently, due to the increase in traffic demand due to overcrowding in the city center and the three-dimensionalization of roads, soundproof tunnels are being installed and operated on bridge-type roads such as overpasses. As is widely known, a soundproof tunnel involves installing supports at regular intervals along the side walls of the bridge formed on both sides of the bridge deck, and attaching soundproof panels between these supports.

When these soundproof tunnels are applied to wide bridges, for example, bridges divided into ascending and descending bridges, the ascending and descending bridges are caused by new construction due to impact forces such as vehicular traffic, wind load, earthquakes, and temperature differences due to seasonal changes. The behavior of the bridges is different, causing torsion in the supports, causing deformation and damage to the soundproof tunnel.

Accordingly, Patent Document 1 interposes a horizontal moving means at the fixed point of the soundproof tunnel installed on the bridge, that is, at the boundary between the bridge deck and the strut, and moves the beam of the prop in a horizontal direction with respect to the relative fixture (e.g., the side wall of the bridge deck). A soundproof tunnel for bridges that can be displaced is being proposed.

The conventional soundproof tunnel described above is configured to be able to respond to abnormal behavior through horizontal movement means, but the rotational displacement generated between the support and the strut due to the independent vertical and/or horizontal displacement of the ascending and descending bridges The problem is not being considered.

Republic of Korea Patent No. 10-0657172

The present invention was created to solve the above-described problems, and its purpose is to provide a strut support device that is disposed at the boundary between a bridge and a strut and can accommodate the rotational behavior of the struts that constitute the transverse frame of a soundproof tunnel. .

In order to achieve the above object, the present invention relates to a strut support device for a soundproof tunnel disposed at the boundary between supports and struts on both sides of a bridge or road, comprising: an upper plate installed at the end of the strut; A lower plate fixed to a support so as to face the upper plate and having a hemispherical groove of constant curvature curved in the thickness direction at the center of the upper surface; A bearing block forming a hemispherical curved surface of the same curvature at the lower end to correspond to the hemispherical groove and fixed to the upper plate to extend into the hemispherical groove; and a negative reaction force resistance plate coupled to the upper surface of the lower plate and having a through hole that allows insertion of the bearing block through. Specifically, the present invention can accommodate the rotational behavior of the support by fastening the bearing block to a spherical joint structure so that it can roll and rotate in the hemispherical groove of the lower plate.

In an embodiment of the invention, the center of curvature of the hemispherical groove may be positioned on the same plane as the opening of the hemispherical groove.

In the present invention, the inner peripheral surface of the through hole can be curved to have the same curvature as the hemispherical groove.

Preferably, the bearing block includes a cylindrical portion, a step protruding in a radial direction around the outer peripheral surface of the cylindrical portion, and an upper spherical having a coupling pin extending downward from the lower surface of the cylindrical portion; It may include a lower spherical for fitting a coupling pin into a coupling hole on the upper surface.

In an embodiment of the present invention, the outer peripheral surface of the step portion may be formed to have the same curvature as the hemispherical groove.

Additionally, the present invention may be formed so that the uppermost inner diameter of the through hole is larger than the outer diameter of the cylindrical portion and smaller than the outer diameter of the stepped portion.

Optionally, the negative reaction force resistance plate includes a first negative reaction force resistance plate having a half through hole recessed to half the size of the through hole at one end; It may include a second negative reaction force resistance plate that is formed symmetrically to the first negative reaction force resistance plate and has a half through hole recessed to half the size of the through hole at the other end.

Optionally, the present invention can form a seating groove on the upper surface of the lower plate to help position the negative reaction force resistance plate.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings.

Prior to this, terms or words used in this specification and claims should not be construed in their usual, dictionary meaning, and the inventor may appropriately define the concept of the term in order to explain his or her invention in the best way. It must be interpreted with meaning and concept consistent with the technical idea of the present invention based on the principle that it is.

According to the description of the present invention above, the present invention is provided to improve structural stability by dynamically accommodating the rotational behavior of the strut according to the twist of the strut caused by different behavior between structures.

Specifically, the present invention can support the vertical load of the strut and at the same time ensure rotational movement of the strut by means of a strut support device composed of a spherical bearing structure at the boundary between the support and the strut.

As described above, the present invention is sandwiched between a support, for example, a bridge deck and a support, and has a simple structure, so assembly workability can be improved. Due to these characteristics, the present invention has the advantage of being easily applicable to existing soundproof tunnels that do not consider the rotational behavior of the struts.

Figure 1 is a construction state diagram of a soundproof tunnel employing a support device for a soundproof tunnel according to a preferred embodiment of the present invention.
Figure 2 is a perspective view schematically showing a support device for a soundproof tunnel according to a preferred embodiment of the present invention.
Figure 3 is an exploded perspective view of the prop support device for a soundproof tunnel according to a preferred embodiment of the present invention as seen from above.
Figure 4 is an exploded perspective view of the prop support device for a soundproof tunnel according to a preferred embodiment of the present invention as seen from below.
Figure 5 is a longitudinal cross-sectional view schematically showing the support device for the soundproof tunnel shown in Figure 2.
Figure 5a is a longitudinal cross-sectional view schematically disassembled of the main portion of the support device for a soundproof tunnel shown in Figure 5.
Figure 6a is a perspective view schematically illustrating the behavior according to the yaw rotational displacement of the strut using the prop support device of the present invention.
Figure 6b is a longitudinal cross-sectional view schematically illustrating the behavior according to the pitch rotational displacement of the strut using the strut support device of the present invention.

The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description and examples taken in conjunction with the accompanying drawings. In this specification, when adding reference numbers to components in each drawing, it should be noted that identical components are given the same number as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In this specification, terms such as first and second are used to distinguish one component from another component, and the components are not limited by the terms. In the accompanying drawings, some components are exaggerated, omitted, or schematically shown, and the size of each component does not entirely reflect the actual size.

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

The present invention relates to a strut support device that helps the strut to extend in the vertical direction with respect to the support, and helps the prop to yaw and/or pitch rotate by means of this strut support device.

In particular, the present invention can be installed at the boundary between bridges and supports constituting the transverse frame of a soundproof tunnel. It will be apparent that the present invention is not limited to the transverse frame of a soundproof tunnel, and that a support support device can be applied to a connection point intended to provide a degree of freedom of rotation at the end of a support installed on the upper surface of a support such as the ground or foundation. Here, the support refers to a part that supports and holds the strut vertically, and may be understood as the side wall of the bridge in the detailed description below.

The strut support device (1; hereinafter referred to as strut support device) for a soundproof tunnel according to a preferred embodiment of the present invention is used in a soundproof tunnel that can prevent the spread of noise by covering the upper part of the bridge 200, as shown in FIG. 1. can be hired.

As shown, in the soundproof tunnel, transverse frames crossing the width direction of the bridge 200 are continuously arranged along the longitudinal direction of the bridge, that is, along the direction of vehicle travel, and soundproofing panels (not shown) are installed between the transverse frames. Attach. The transverse frame is arranged across the upper plate of the bridge 200 in the width direction, and supports both ends of the struts, such as the outer side wall 210; 210a of the upward bridge 200a and the outer side wall 210 of the downward bridge 200b. ;210b), that is, it may include a support device (1) fastened to a ball joint structure.

As is widely known to those skilled in the field, when a soundproof tunnel is constructed on a bridge divided into an upward bridge 200a and a downward bridge 200b, it is affected by differential settlement, vibration, and expansion and contraction due to temperature changes. The bridges 200a and 200b exhibit different behavior, which causes uneven stress and deteriorates the quality of the structure. Accordingly, the present invention accommodates the rotational behavior of the strut by means of a strut support device for a soundproof tunnel to be interposed at the boundary between the support (in other words, the side wall) and the strut, and allows horizontal and/or vertical movement of the strut. It is designed to improve the durability and stability of the soundproof tunnel.

In other words, the strut support device 1 is multi-directional like a spherical bearing structure using bearing blocks 130 (see FIG. 3) having a hemispherical curved surface at both ends of the strut, that is, at the free end. It is designed for sliding movement.

Of course, the present invention is not limited to bridges with separate upward and downward bridges, but can also be applied to wide bridges, overpasses, etc.

With reference to FIGS. 1 to 5A, the strut support device 1 according to a preferred embodiment of the present invention is interposed at the boundary between the support 210 and the strut H, and has a prop ( H) can be connected between the free end of the support and the support to keep it upright, and at the same time, it can be rotated using a ball joint to displace the support with respect to the support.

Optionally, the strut H may be formed as an H beam or an I beam integrally forming a web between a pair of flanges.

As described above, the present invention includes an upper plate 110 installed on the free end of a support, a lower plate 120 fixed to a support 210 such as the side wall of a bridge deck, and an upper plate facing the upper plate 110. It includes a bearing block 130 that is disposed between the plate 110 and the lower plate 120 to support the vertical load of the prop and allow rotational movement of the prop. In addition, the present invention may additionally include a negative reaction force resistance plate 140 that limits displacement to the upper side of the bearing block.

In an embodiment of the present invention, the upper plate 110 may be fixed to the lower surface of the end plate (H ₁ ) integrally formed with the free end of the support (H) using various fastening methods such as bolting or welding. Not limited to this, the upper plate may be formed integrally with the free end of the support (H).

The upper plate 110 forms a receiving groove 111 that is concave in the thickness direction at the center of its lower surface.

The lower plate 120 forms a hemispherical groove 121 curved in the thickness direction at the center of its upper surface to correspond to the lower shape of the bearing block.

As shown, the hemispherical groove 121 is formed as a hemispherical curved surface with a certain curvature. Preferably, the center of curvature (C) of the hemispherical groove is located on the upper surface of the lower plate 120 so that the bearing block is inserted into the hemispherical groove. It allows not only retraction but also withdrawal of the bearing block within the hemispherical groove.

Optionally, the lower plate is a seating groove 122 formed in a size and shape corresponding to the lower shape of the negative reaction force resistance plate 140 along the edge of the hemispherical groove, that is, around the edge of the opening of the hemispherical groove. ) can be provided. In other words, the lower plate has a hemispherical groove 121 formed concavely downward in the inner area of the seating groove 122, and the center of curvature (C) of the hemispherical groove 121 is the same as the opening of the hemispherical groove. It is positioned on a plane. Specifically, the center of curvature of the hemispherical groove may be positioned on the same plane as the seating groove 122 formed on the upper surface of the lower plate 120 or may be positioned higher than the seating groove.

In addition, in the present invention, the negative reaction force resistance plate 140 is attached to the lower plate 120 around the edge of the hemispherical groove using a bolting method or the like to be detachably mounted. The negative reaction force resistance plate 140 restrains the behavior of the bearing block to be placed in the hemispherical groove, and can be positioned and dismantled in the seating groove 122 formed to be stepped with the upper surface of the lower plate.

As described above, the bearing block 130 is a structural member that supports the vertical load of the strut and allows rotational movement of the strut. As shown, the bearing block 130 is formed in the hemispherical groove 121 formed in the inner area of the upper surface of the lower plate 120. It may be provided with a hemispherical convex surface that rotates to enable rotational displacement.

Specifically, the bearing block 130 consists of an upper spherical 131 and a lower spherical 132. The upper spherical 131 is fixedly coupled to the upper plate 110 and extends downward toward the hemispherical groove, and has a cylindrical portion 131a and a step portion 131b protruding in a radial direction around the outer peripheral surface of the cylindrical portion 131a. , and a coupling pin (131c) extending downward from the lower surface of the cylindrical portion (131a). The upper surface of the cylindrical portion 131a is located in the receiving groove 111 formed on the lower surface of the upper plate, and the upper spherical and the upper plate can be coupled to each other using a bolting method or the like. The lower spherical 132 is disposed below the upper spherical 131 as shown, and is formed in a cylindrical structure with a hemispherical curved surface 132a at its lower end. In addition, the lower spherical 132 is provided with a coupling hole 132b on its upper surface to fit the coupling pin 131c of the upper spherical 131. The bearing block is supported by aligning the upper spherical 131 and the lower spherical 132 on the coaxial line by inserting a coupling pin 131c into the coupling hole 132b formed in the center of the upper surface of the lower spherical 132. The load can be transmitted to the lower plate 120, and the upper and lower sphericals can be fixed.

Preferably, the hemispherical curved surface 132a of the lower spherical 132 is formed to have a curvature corresponding to the curved hemispherical groove 121 to induce contact between the curved surfaces. More preferably, the present invention forms a convex surface and a concave surface of the hemispherical curved surface 132a and the hemispherical groove 121 with the same spherical curvature, so that the lower spherical can be freely rotated within the hemispherical groove.

In addition, the outer peripheral surface of the step portion 131b of the upper spherical 131 may also be curved with the same curvature as the hemispherical curved surface 132a so as to be in contact with the open portion of the hemispherical curved surface 132a.

As previously described, the present invention is to attach the negative reaction force resistance plate 140, which prevents the upward lifting phenomenon of the bearing block arranged in the hemispherical groove of the lower plate, to the upper surface of the lower plate 120 by, for example, a bolting method. Bar, the negative reaction force resistance plate 140 is seated in the seating groove 122 of the lower plate 120, thereby limiting unnecessary movement of the negative reaction force resistance plate. As shown, the negative reaction force resistance plate forms a through hole 140a in its inner area. The through hole 140a is formed in a size and shape that allows penetration of the upper part of the upper spherical 131 fixedly coupled to the upper plate, specifically the cylindrical portion 131a, while limiting the rotation radius of the cylindrical portion. For this purpose, the uppermost inner diameter of the through hole 140a is set to have a size larger than the outer diameter of the cylindrical portion 131a, and the uppermost inner diameter of the through hole 140a is set to have a size smaller than the outer diameter of the step portion 131b. .

In addition, the inner peripheral surface of the through hole 140a is curved to have the same center of curvature and radius of curvature as the hemispherical groove 121. As shown, the upper surface of the negative reaction force resistance plate 140 is disposed above the center of curvature (C), so the inner circumferential surface has a semicircular arc or right arc shape as it moves from the lower side to the upper side. It is formed with a curved line like this. Accordingly, the present invention rolls and rotates the step portion 131b of the upper spherical and the hemispherical curved surface 132a of the lower spherical in the internal space limited by the lower plate 120 and the negative reaction force resistance plate 140 in a ball joint manner. help you to

Optionally, the present invention includes a first negative reaction force resistance plate 141 and a second negative reaction force resistance plate ( 142) and can be divided into two parts. The first negative reaction force resistance plate 141 forms a half through hole 141a that is orthogonally recessed to half the size of the through hole at one end, and correspondingly, the second negative reaction force resistance plate 142 forms the first negative reaction force resistance plate 141. A half through hole 142a recessed to a size of half the through hole is formed orthogonally at one end of the resistance plate and at the other end to be opposed to the other end. The negative reaction force resistance plate can form a complete through hole (140a) by combining one half through hole (141a) and the other half through hole (142a).

The present invention can relieve the torsional stress generated at the boundary between the strut and the support by means of a strut support device for a soundproof tunnel configured to ensure reliable rotational behavior of the strut, see FIGS. 6A and 6B. The stable rotational behavior of the strut coupled to the strut support device is derived and explained.

Figure 6a illustrates the process of displacing the free end of a support column arranged in a ball joint manner in the hemispherical groove of the lower plate 120 fixed to the support through yaw rotation.

As known to those skilled in the art, the present invention can exert a function of resisting torsional stress by rolling the hemispherical curved surface of the bearing block within the hemispherical groove during yaw rotation. Preferably, the lower spherical of the bearing block is made of engineering plastic, so that a hemispherical curved surface can be easily and precisely formed, and there is no need to provide an additional sliding material at the friction area.

Figure 6b illustrates the process of displacing the free end of a support column arranged in a ball joint manner in the hemispherical groove of the lower plate 120 fixed to the support through pitch rotation.

The present invention limits the rotation radius of the bearing block 130 by a negative reaction force resistance plate 140 that is in contact with the lower surface of the upper plate 110 or the cylindrical portion of the bearing block during pitch rotation, and is secure against negative reaction force. The upper spherical (131) and negative reaction force resistance plate (140) of the bearing block are made of metal material so that they can effectively resist.

As previously described, the present invention is directed to the vertical movement of the bridge due to the differential settlement of the bridge on which the soundproof tunnel is constructed, and the impact force of the wind load in the bridge axis direction and/or the direction perpendicular to the bridge axis of the bridge with the soundproof tunnel. In order to respond to complex behavior due to the horizontal behavior of the bridge, the free ends of the struts are connected with a ball joint structure, which minimizes stress concentration when twisted at the boundary between the strut and support, preventing damage due to deformation in advance. there is.

Additionally, in the present invention, the lower plate 120 may be fixedly coupled to a support using anchor bolts or the lower side of the lower plate may be embedded in a support to fix the position.

The present invention has been described in detail through examples, but this is for the purpose of specifically illustrating the present invention. The strut support device for a soundproof tunnel according to the present invention is not limited thereto, and is not limited to this, and is generally used in the field within the technical spirit of the present invention. It would be clear that modification or improvement is possible by those who have the knowledge of.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

1 ----- Post support device,
110 ----- upper plate,
120 ----- lower plate,
130 ----- Bearing block,
131 ----- Upper spherical,
132 ----- Lower spherical,
140 ----- Negative reaction force resistance plate,
200 ----- Bridge,
210 ----- Support,
H ----- Holding.

Claims (8)

In a soundproof tunnel in which struts (H) crossing in the width direction from supports (210; 210a, 210b) on both sides of a bridge or road are continuously arranged along the longitudinal direction of the bridge or road, and soundproofing panels are attached between the struts,
an upper plate 110 installed at the end of the support (H);
a lower plate (120) fixed to the support so as to face the upper plate (110) and having a hemispherical groove (121) of constant curvature curved in the thickness direction at the center of the upper surface;
An upper spherical 131 is fixedly coupled to the upper plate 110 and extends downward toward the hemispherical groove, and a hemispherical curved surface 132a is formed to be rotatable within the hemispherical groove 121, and the upper spherical A bearing block 130 consisting of a lower spherical 132 coaxially coupled with the curl; and
It includes a negative reaction force resistance plate 140 coupled to the upper surface of the lower plate 120 and having a through hole 140a that allows penetration of the upper spherical of the bearing block,
The bearing block (130) is a support device for a soundproof tunnel, characterized in that the bearing block (130) is fastened to a spherical joint structure so as to be rotatable in the hemispherical groove (121) of the lower plate to accommodate the rotational behavior of the strut.
In claim 1,
A prop support device for a soundproof tunnel, characterized in that the center of curvature (C) of the hemispherical groove (121) is positioned on the same plane as the opening of the hemispherical groove (121).
In claim 1,
A support device for a soundproof tunnel, characterized in that the inner peripheral surface of the through hole (140a) is curved with the same curvature as the hemispherical groove (121).
In claim 1,
The upper spherical 131 includes a cylindrical portion 131a, a step portion 131b protruding in a radial direction around the outer peripheral surface of the cylindrical portion 131a, and a length extending downward from the lower surface of the cylindrical portion 131a. Equipped with an extended coupling pin (131c),
The lower spherical (132) is a prop support device for a soundproof tunnel, characterized in that it is provided with a coupling hole (132b) on the upper surface to fit the coupling pin.
In claim 4,
A support device for a soundproof tunnel, characterized in that the outer peripheral surface of the step portion (131b) is formed with the same curvature as the hemispherical groove (121).
In claim 4,
A prop support device for a soundproof tunnel, characterized in that the uppermost inner diameter of the through hole (140a) is larger than the outer diameter of the cylindrical portion (131a) and smaller than the outer diameter of the step portion (131b).
In claim 1,
The negative reaction force resistance plate 140,
A first negative reaction force resistance plate (141) having a half through hole (141a) recessed to half the size of the through hole (140a) at one end;
A second negative reaction force resistance plate (142) formed symmetrically with the first negative reaction force resistance plate and having a half through hole (142a) recessed to half the size of the through hole (140a) at the other end. A prop support device for a soundproof tunnel, characterized in that.
In claim 1,
The lower plate 120 is a prop support device for a soundproof tunnel, characterized in that a seating groove 122 is formed on the upper surface of the lower plate to help position the negative reaction force resistance plate.

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