KR20160147529A

KR20160147529A - Guardrail for triple shock absorption structure of bridge

Info

Publication number: KR20160147529A
Application number: KR1020150084396A
Authority: KR
Inventors: 심기용
Original assignee: (주)효명
Priority date: 2015-06-15
Filing date: 2015-06-15
Publication date: 2016-12-23

Abstract

The present invention relates to a guardrail for a bridge having a triple shock-absorbing structure, and more specifically, to a guardrail for a bridge having a triple shock-absorbing structure capable of minimizing a shock applied to a curb of the bridge by relieving the shock bifariously at a guardrail which protrudes bifariously and has a space therein, and relieving the shock once more at a post having a space therein.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a three-

The present invention relates to a guardrail for a bridge having a triple shock-absorbing structure, and more particularly, to a bridge structure capable of minimizing impact to a bridge rail by mitigating a double shock in a guard rail, To a guardrail for a bridge having a triple shock-absorbing structure.

At the edge of the bridge on which the vehicle travels, a bridge railing is provided as a protection means for preventing a driver from being careless or colliding with a vehicle or collision of a vehicle due to a collision.

Such bridge rails are generally installed along the edges of the bridges so that the bridges are fixed to the bricks at regular intervals and the bridges are connected by a plurality of guard rails.

The guard rails of the guard rail structures are spaced apart from the upper and lower portions of the support portions so as to protect all the vehicles from the low-passenger car to the high-passenger car.

However, the conventional bridge railing has a problem that the shock absorbing function is insufficient, so that when the vehicle collides with a rail, the impact force is directly transmitted to the vehicle and the railing, leading to a large accident. Particularly, when an impact is applied to a pedestal installed on a curb, a curb may be cracked due to an impact applied to the curb, or a curb may be broken, resulting in a large accident that the bridge collapses.

Korean Registered Patent [10-1288063] discloses a rail for a bridge.

Korea Registered Patent [10-1288063] (Registered on Feb. 2013. 07)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a double- The present invention provides a guard rail for a bridge having a triple shock-absorbing structure capable of minimizing the impact of a bridge curb by mitigating impact once more at the bridge.

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description .

According to an aspect of the present invention, there is provided a guard rail for a bridge having a triple shock mitigation structure, comprising: a plurality of support portions provided vertically spaced apart from a curb of a bridge at a predetermined interval; And a guard rail part (200) horizontally connected between the support part (100), wherein the support part (100) comprises an anchor bracket (110) fixed to the curb of the bridge; A first vertical plate (120) extending vertically above the anchor bracket (110); And a guard rail support portion (131) protruding and extending in both lateral directions is formed on the front surface, and is fixedly coupled to surround the outside of the first vertical plate, and the first vertical plate And a second vertical plate 130 coupled to the front surface of the support frame 200 so as to form a constant region shock absorbing space 132. The guard rail 200 is coupled to the support 100, And an inner partition wall 211 formed to horizontally divide an inner space of the inner partition wall 211. The inner partition wall 211 is formed with a rail sleeve 210 protruding outwardly from the inner partition wall 211 toward upper and lower sides, A first shock absorber 210 having an outer portion 212 formed in a horizontal direction; And a second shock buffer 220 protruding outside the roller sleeve 212 in a shape connected to the rail sleeve 212 formed on the upper and lower sides with respect to the inner partition 211, ; And

The second shock buffer 220 includes an impact disperser 221 protrudingly extended from the inner surface of the second shock buffer 220 on the center line toward the inner partition wall 211.

In addition, the second vertical plate 130, the first shock buffer 210, and the second shock buffer 220 are formed of aluminum.

The second vertical plate 130 includes a guard rail side support portion 133 including the guard rail support portion 131; And a pawl main body side support portion 134 slidably engageable with the guard rail side pawl portion 133. The impact absorbing space 132 is formed in the guard rail side pawl portion 133 or the pawl main body side support portion 134 .

The guard rails for the bridges of the triple shock mitigation structure are used for connecting the guard rails 200 to each other. The guard rails for the bridges of the triple shock mitigation structure are fitted to the upper and lower sides of the inner partition wall 211 of the guard rail 200, And a guard rail connecting member (300) having a columnar shape.

A guard rail connecting center member 400 formed at the center of the guard rail connecting member 300 and having the same cross section as the guard rail portion 200 and fixing the guard rail connecting member 300; And further comprising:

According to the guard rail for a bridge having a triple shock-absorbing structure according to an embodiment of the present invention, a space is formed in the inside of the bridge, and a double shock is relieved in the guard rail protruding from the double, By mitigating the impact, the shock absorbing performance can be increased at the time of a vehicle collision, and at the same time, the impact of the bridge curb can be minimized.

In addition, by suppressing the distortion of the second shock absorber to cause the primary shock mitigation by the shock absorber, the shock is transmitted to the first shock absorber for the secondary shock mitigation, so that the shock absorber can be systematically There is an effect.

Further, by forming the second vertical plate, the first impact buffering portion, and the second impact buffering portion with the anchor bracket and the aluminum material having the weaker rigidity than the first vertical plate, it is possible to prevent the impact to be transmitted to the first vertical plate, the anchor bracket, . &Lt; / RTI >

Further, there is an effect that the connection between the guardrails can be strengthened by using the guardrail connecting member.

In addition, by using the assembly of the guard rail connecting member and the guard rail connecting center member, it is convenient to construct and by setting the clearance at a constant interval, it is possible to prevent the guide rail from being bent by the expansion of the guide rail portion due to the change in temperature have.

1 is a perspective view of a guard rail for a bridge of a triple shock mitigation structure according to an embodiment of the present invention;
Figure 2 is a front view of Figure 1;
3 is a sectional view taken along the line A-A 'in Fig.
4 is a sectional view taken along the line D-D 'in Fig. 2;
5 is a cross-sectional view showing another embodiment of Fig.
FIG. 6 is an enlarged view of a portion B in FIG. 2; FIG.
7 is a sectional view of a guide rail portion of a guard rail for a bridge of a triple shock mitigation structure according to an embodiment of the present invention.
Fig. 8 is a sectional view of the guide rail connecting member shown in Fig. 7; Fig.
9 is a sectional view of a guide rail portion of a guard rail for a bridge of a triple shock mitigation structure according to another embodiment of the present invention.
10 is a perspective view showing a configuration in which a guard rail connecting portion and a guard rail connecting center member are used to connect a guard rail portion.
Fig. 11 is a front view of the guard rail connecting member and the guard rail connecting center member of Fig. 10; Fig.
12 is a sectional view of Fig. 10; Fig.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concept of the term appropriately in order to describe its own invention in the best way. The present invention should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention. Further, it is to be understood that, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Descriptions of known functions and configurations that may be unnecessarily blurred are omitted. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification. It is to be noted that the same elements among the drawings are denoted by the same reference numerals whenever possible.

FIG. 1 is a perspective view of a guard rail for a bridge of a triple shock mitigation structure according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a sectional view taken along the line A- 4 is a cross-sectional view taken along the line D-D 'in Fig. 2, Fig. 5 is a cross-sectional view showing another embodiment of Fig. 4, Fig. 6 is an enlarged view of a portion B of Fig. FIG. 8 is a cross-sectional view of a guide rail part of a bridge for a triple shock mitigation structure according to an embodiment, FIG. 8 is a sectional view of the guide rail connecting member in FIG. 7, 10 is a perspective view showing a form in which a guard rail portion is connected using a guard rail connecting member and a guard rail connecting center member, and Fig. 11 is a perspective view showing the guard portion of the guard rail for a bridge of the shock- A front view of the rail connecting member and the guard rail connecting center member, 12 is a cross-sectional view of Fig.

1 to 3, a guard rail for a bridge having a triple shock-absorbing structure according to an embodiment of the present invention includes a support portion 100 and a guard rail portion 200. As shown in FIG.

A plurality of supporting portions 100 are provided and are vertically installed at a predetermined distance from the curb of the bridge. Since the position where the support portion 100 is installed is generally a position where a vertical frame (support) of a bridge rail (guardrail) is installed, a detailed description will be omitted.

4, the support 100 includes an anchor bracket 110, a first vertical plate 120, and a second vertical plate 130. As shown in FIG.

The anchor bracket 110 is fixed to the curb of the bridge.

The anchor bracket 110 may be in the form of a thick plate and may be provided with an anchor hole or the like in which an anchor bolt for fixing the support portion 100 can be fastened to a curb of a bridge.

The shape of the anchor bracket 110 generally follows the shape of the vertical frame (support), but may take a different shape from the support. For example, the vertical frame (support) may have a quadrangular prism shape, and the anchor bracket 110 may have a circular plate shape.

In addition, the anchor bracket 110 is preferably made of a rigid material such as steel.

The first vertical plate 120 extends vertically above the anchor bracket 110.

That is, the first vertical plate 120 is vertically fixed to the anchor bracket 110, and is formed into a columnar shape with an empty interior.

The first vertical plate 120 may be formed of the same material as the anchor bracket 110.

The second vertical plate 130 is formed in a columnar shape having a space therein. The second vertical plate 130 is formed with a guard rail support portion 131 protruding and extending in both lateral directions on the front surface thereof. Absorbing space 132 is formed on the front surface of the first vertical plate.

That is, the second vertical plate 130 is vertically upwardly fixed to the anchor bracket 110 and is formed into a columnar shape with an empty interior.

The guard rail support portion 131 is formed on the front surface of the second vertical plate 130 (surface facing the road side) to be wider than the rear surface of the second vertical plate 130. This is for widening the surface that is in close contact with the guard rail 200 (see FIG. 6).

A description will be given of a procedure of installing the support portion 100 of the guard rail for a bridge of a triple impact mitigation structure on a curb of a bridge according to an embodiment of the present invention.

Since the anchor bracket 110 and the first vertical plate 120 are integrally formed, the anchor bracket 110 is first brought into close contact with the curb of the bridge, and the anchor bracket 110 is connected to the bridge In the curb.

After the second vertical plate 130 is fitted to the first vertical plate 120 from above, the first vertical plate 120 and the second vertical plate 130 are fixed using bolts, nuts, and the like .

That is, the support portion 100 can be installed by two fixing operations.

At this time, the second vertical plate 130 is closely contacted to the rear side so as to be spaced apart from the front surface (the side of the guard rail supporting portion 131) of the first vertical plate 120 so that the shock absorbing space 132 is formed .

5, the second vertical plate 130 includes a guard rail side support portion 133 and a ground peripheral side support portion 134, wherein the guard rail side support portion 133 or the ground peripheral side support portion 134) of the shock absorbing space (132).

The guard rail side support portion 133 is formed to include the guard rail support portion 131.

The supporting portion side supporting portion 134 is formed in a structure capable of sliding engagement with the side portion 133 of the guard rail.

In other words, the second vertical plate 130 is composed of a guiding rail side support portion 133 and a guiding circumferential side support portion 134 that can be engaged and detached, and the guard rail guiding portion 133 and the guiding portion side guiding portion 134 Can be coupled and separated in a sliding manner.

The guard rail 200 is horizontally connected between the support portions 100.

The guard rail part 200 may be provided at a plurality of different heights in the support part 100 so as to protect all the vehicles from the low-passenger car to the high-cargo vehicle. That is, the guard rail 200 may be provided in two rows (see FIG. 3), as well as three rows (see FIG. 12) and four rows.

And bolt-fitting grooves (see FIG. 7 to FIG. 8) are formed on the rear surface of the guard rail 200 to allow bolts to be inserted in the longitudinal direction. The bolts are inserted into the bolt-fitting grooves and bolts inserted into the bolts are inserted into the bolts through the bolts. (100).

As shown in FIG. 7, the guard rail 200 includes a first shock buffer 210 and a second shock buffer 220.

The first shock buffer 210 is formed with an internal partition 211 which is coupled to the support 100 and has a space therein and divides the internal space horizontally horizontally, And a rail sleeve portion 212 protruding outwardly from the inner partition wall 211 to both the upper side and the lower side with respect to the center of the inner side of the inner partition wall 211 is formed outside in the horizontal direction.

The guard rail 200 has to withstand a certain amount of impact of the vehicle, and when the vehicle is subjected to an excessive amount of impact, the vehicle and the bridge are impacted. Therefore, it is preferable to form a space in the interior for shock absorption, and to reinforce the guard rail 200 with the internal partition 211.

Further, due to the rail sleeve portion 212 ('3' shape) protruding outwardly (on the road side) from the inner partition 211 toward the upper and lower sides with respect to the inner partition 211, Can be received gradually.

The second shock absorbing part 220 protrudes outward from the outer surface of the rail sleeve part 212 in a shape connected to the rail sleeve part 212 formed on the upper and lower sides with respect to the inner partition wall 211, do.

Here, it is preferable that the second shock absorber 220 is extended ('C' shape) at the portion of the rail sleeve 212 protruding most to the road side.

This is to allow the second shock buffer 220 protruding most to the road side to primarily absorb the impact of the vehicle.

At this time, the second shock buffer 220 may include an impact dispersion unit 221 protrudingly extended from the inner surface of the second shock buffer 220 toward the inner partition 211.

That is, the impact dispersing portion 221 is formed at a position horizontal to the inner partition wall 221.

This allows the second shock buffer 220 to primarily absorb the impact of the vehicle, but even if the second shock buffer 220 is crushed by the impact of the vehicle, And the second shock buffer 220 is closely contacted with the first shock buffer 221 to disperse the impact to the first shock buffer 210. [

The second vertical plate 130, the first shock buffer 210, and the second shock buffer 220 of the guard rail for a bridge having a triple shock mitigation structure according to an embodiment of the present invention are formed of aluminum .

The anchor bracket 110 is made of a rigid material such as steel. The anchor bracket 110 is made of an aluminum material having a stiffness lower than that of the first vertical plate 120. The second vertical plate 130, the first shock absorber 210, The formation of the impact buffering part 220 can reduce the impact of the collision of the vehicle on the bridge (curb). This is because the second vertical plate 130, the first shock buffer 210, and the second shock buffer 220 formed of aluminum absorb most of the shock.

8, a guard rail for a bridge of a triple shock mitigation structure according to an embodiment of the present invention is used for connecting between guardrail portions 200, and an inner partition wall (not shown) of the guardrail portion 200 And a columnar guardrail connecting member 300 which is fitted to both the upper side and the lower side with respect to the center line 211 of the guide rail connecting member 300.

It is preferable that the guardrail connecting members 300 are connected to each other in order to install the entire length of the bridge because the guardrail connecting members 300 are produced with a predetermined length.

To this end, the guard rail part 200 can be connected using a guard rail connecting member 300 which can be fitted to one side of the guard rail part 200. At this time, the guard rail connecting member 300 and the guard rail part 200 may be bolted (see FIG. 6).

The guard rail connecting member 300 may be formed to have a shape capable of interference fit with the inner space of the guard rail 200. The guard rail connecting member 300 may include a first shock buffer 210, (See Fig. 9).

10, a guard rail for a bridge having a triple shock mitigation structure according to an embodiment of the present invention is formed to have the same cross section as that of the guard rail portion 200, And a guard rail connecting center member (400) which is located at the center and fixes the guard rail connecting member (300).

That is, the guard rail connecting center member 400 fixes the guard rail connecting member 300 at the center of the guard rail connecting member 300, and has the same cross section as the guard rail 200.

This is to maintain the same shape from the starting point to the end of the guide rail connected to the guide rail part 200 and to facilitate connection between the guide rail parts 200. In other words,

By inserting the guide rail part 200 into both sides of the assembly of the guard rail connecting center member 400 in which the guard rail connecting member 300 is fixed at the center of the guard rail connecting member 300, Since the connection between the rail parts 200 is possible, it is convenient to construct. By providing a clearance at regular intervals, it is possible to prevent the guide rail from being bent due to the expansion of the guide rail part 200 due to the change in temperature.

At this time, bolt connection (see FIG. 11) or the like can be used for connection between the guard rail connecting member 300 and the guard rail connecting center member 400.

In addition, a cap for preventing external foreign substances and rainwater from entering the upper portion of the support portion 100 may be installed on the upper portion of the support portion 100. Also, at both ends of the guard portion 200, Cap can be put on.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: housewife
110: anchor bracket 120: first vertical plate
130: second vertical plate
131: Guard rail supporting portion 132: Shock absorption space
200: guard rail part
210: First shock buffer
211: inner partition wall 212: rail sleeve portion
220: second shock buffer
221: Impact dispersion unit
300: guardrail connecting member

Claims

A plurality of support parts (100) vertically installed at predetermined intervals in the curb of the bridge; And
A guard rail part (200) horizontally connected between the support parts (100);
, &Lt; / RTI &
The support portion (100)
An anchor bracket 110 fixed to the curb of the bridge;
A first vertical plate (120) extending vertically above the anchor bracket (110); And
A guard rail support portion 131 formed to extend in both lateral directions on a front surface thereof and fixedly coupled to surround the outside of the first vertical plate, A second vertical plate 130 coupled to the front surface to form a shock absorbing space 132;
Lt; / RTI >
The guard rail part (200)
An inner partition wall 211 which is coupled with the support portion 100 and has a space formed therein and which divides the inner space horizontally horizontally is formed and the upper and lower sides of the inner partition wall 211 are centered A first shock buffer 210 having a rail sleeve 212 protruded outward from the inner partition 211 in a horizontal direction; And
A second shock buffer 220 protruding outside the roller sleeve 212 in a shape connected to the rail sleeve 212 formed on the upper and lower sides with respect to the inner partition 211 and having a space formed therein;
Wherein the guard rail is formed of a triple shock-absorbing structure.

The method according to claim 1,
The second shock buffer 220 may include
An impact dispersing portion 221 protrudingly extended from the inner surface on the center line of the second shock absorbing portion 220 toward the inner partition wall 211;
Wherein the guard rail is formed of a triple shock-absorbing structure.

The method according to claim 1,
Wherein the second vertical plate (130), the first shock buffer (210), and the second shock buffer (220) are formed of aluminum material.

The method according to claim 1,
The second vertical plate (130)
A guard rail side support portion 133 including the guard rail support portion 131; And
A ground peripheral side support portion (134) slidably engageable with the guard rail side support portion (133);
, &Lt; / RTI &
And a shock absorbing space (132) is formed in the guard rail side support portion (133) or the ground side side support portion (134).

The method according to claim 1,
The guard rails for the bridges of the triple shock-
A guardrail connecting member 300 of a column shape used for connecting between the guard rails 200 and fitted to both the upper and lower sides of the inner partition wall 211 of the guard rail 200;
Further comprising a plurality of guide rails for guiding the bridge.

6. The method of claim 5,
A guard rail connecting center member 400 formed at the same cross section as the guard rail portion 200 and positioned at the center of the guard rail connecting member 300 and fixing the guard rail connecting member 300;
Further comprising a plurality of guide rails for guiding the bridge.