KR20070004375A - Method for installing median strip excellent in shock absorbing function - Google Patents

Abstract

An installation method of a median strip having excellent shock absorbing function is provided to prevent posts from being cut or burst at a collision and to reduce the shock added on collided vehicles and passengers by making a median strip to be bent appropriately and to absorb shock. An installation method of a median strip having excellent shock absorbing function comprises the steps of perforating a general concrete pavement, driving a post(200) in the perforated hole using a hand-operated hammer or an electromotive hammer, installing a connector(300) having a V-notch to the post using a fixture such as a bolt, etc., coupling a guardrail(100) to the installed connector using a fixture such as a bolt, etc., inserting a socket(700) for post reinforcement to the inside of the post using a hammer or a chisel, and filling up a gap between the post and the pavement using asphalt concrete. Hereon the median strip contains two guardrails placed to face each other, posts arranged longitudinally between the guardrails at regular intervals and coupled with a cap(270), and a connector fixed between the post and the guardrail.

Description

METHOD FOR INSTALLING MEDIAN STRIP EXCELLENT IN SHOCK ABSORBING FUNCTION}

1 is a view showing the structure of a central separator according to the present invention, a is a plan view, b is a front view, c is a side view.

Figure 2 is a perspective view showing the structure of the central separator excellent in shock absorption function according to an embodiment of the present invention (type 2W).

Figure 3 is an exploded perspective view showing the structure of the central separator excellent in shock absorption function according to an embodiment of the present invention.

FIG. 4 is a view showing a detailed configuration of the post reinforcement socket in FIG. 3, (a) is a plan view, and (b) is a front sectional view. FIG.

FIG. 5 is a diagram showing an example of the structure of the connecting table in FIG. 3, wherein (a) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 6 is a side view illustrating an example of a coupling structure of the connecting rod, the pipe support and the guard rail in FIG. 2.

Figure 7 is a perspective view showing the structure of the central separator excellent in shock absorption function according to another embodiment (3W type) of the present invention.

8 is an exploded perspective view showing the structure of the center separator excellent in shock absorption according to another embodiment of the present invention.

FIG. 9 is a view showing a structural example of the connecting table in FIG. 8, (a) is a plan view, (b) is a front view, and (c) is a side view.

FIG. 10 is a side view illustrating an example of a coupling structure of the connecting rod, the pipe support and the guard rail in FIG. 7.

※ Explanation of Major Drawings

100 ... Guardrail

200 ... Holding

300 ... connecting rod

310 ... center of connecting rod

320 ... Edge of connecting rod

350 ... buffer hole

700 ... Shoring reinforcement socket

1000 ... median

The present invention relates to a method for installing a median separator having an excellent shock absorption function, and more particularly, to a method for installing a median separator to greatly reduce the shock transmitted to a colliding vehicle by increasing its own deformation.

The central separator installed on the roadway is a structure for preventing a serious accident such as a frontal collision by preventing a traveling car from entering the other lane due to a driver's carelessness or a vehicle defect.

In general, the central separator is composed of two guard rails made of material facing each other, and a support is provided between the two guard rails at predetermined intervals along their length direction. A bundle type connecting rod is interposed between the post and the two guard rails. The pipe strut and the connecting rod, and the guard rail and the connecting rod are respectively fastened by bolts.

Moreover, conventionally, in order to increase the strength of the posts, it is common to use a reinforced concrete material or a structure in which a part of the metal (steel or the like) posts is reinforced with concrete. However, this configuration can be sufficient to prevent the collision of the vehicle to go over the median, the strength of the car itself is enough, but a large impact is transmitted to the crashing vehicle itself has often caused serious damage to the occupants. Moreover, when the concrete is broken at the time of collision, the metal support itself, which is a skeleton, is often broken, which is a great threat to safety accidents.

In addition, when viewed from the front (roadway direction), since the connecting rod is formed in a bundle, its rigidity is too large to absorb a shock during a collision has a disadvantage in that a large impact on the vehicle. In addition, since the connecting rod has its own volume, the fastening operation is inconvenient and the length of the fixing means is limited.

The present invention has been made to solve the above problems, the object of the invention is to effectively absorb the impact in the event of a vehicle crash while maintaining the appropriate strength excellent shock absorbing installation method excellent in shock absorption function to ensure the safety of the occupants To provide.

In order to achieve the above object, the installation method of the central separator excellent in shock absorption function according to the present invention,

① Step of punching the wrapping surface

② type of strut in the perforated hole

③ Installing the connecting rod on the shore

④ installing the guard rail on the connecting rod

⑤ inserting and installing the reinforcement socket for the inside of the support

It is preferably configured to include.

Here, it is preferred that the post-reinforcement socket is inserted and installed to further include filling the gap between the post and the hole of the packaging surface.

In addition, it is preferable that the post reinforcement socket is disposed to include a point that intersects the road surface along the longitudinal direction of the post.

Hereinafter, with reference to the accompanying Figures 1 to 10 will be described in detail a preferred embodiment of the present invention.

As shown, the central separator 1000 according to the present invention, between the two guard rails 100 disposed opposite to each other, and the two guard rails 100 at predetermined intervals along their length direction The strut 200 is arranged, and the connecting rod 300 fixed between the strut 200 and the two guard rails 100. The guard rail 100 and the connecting table 300 are fastened by fixing means such as bolts, and the support 200 and the connecting table 300 are fastened by fixing means such as bolts. The cap 270 is installed at the upper end of the support 200.

Here, the post 200 is composed of a hollow pipe, the post reinforcement socket 700 is inserted into the hollow is fixed. The hollow of the support 200 is usually formed in a circular shape, but the shape does not need to be particularly limited.

Moreover, it is important that the post reinforcement socket 700 is disposed by a predetermined length, including a point crossing the lane surface (a point where the collision load acts the most) along the longitudinal direction of the post 200. In particular, the length of the post reinforcement socket 700 may have a value of about 0.2 to 0.4 times the length of the post 200. This is a range in consideration of both economic and strength reinforcement effects.

In this configuration, since the strength of the support 200 is greatly strengthened to greatly reduce the tendency of the support 200 to break or rupture at the time of a vehicle crash, the shock vehicle is absorbed while being properly curved during a collision, and thus the impact vehicle And the impact on the occupant is greatly alleviated.

In particular, when the post reinforcement socket 700 is formed of a hollow pipe, it is possible to reduce the material cost and to prevent the vehicle from being detached while the bending deformation occurs appropriately during a collision.

In addition, as shown in Figures 2 and 8, the connecting table 300 is composed of a flat central portion 310 and the edge portion 320 that is around the central portion, a portion of the edge portion 320 It is bent to one side and a buffer hole 315 is formed in the central portion 310. Accordingly, structural deformation occurs even between the guard rails 100 during a vehicle collision, thereby effectively reducing shock.

In addition, when the buffer hole 315 is configured to gradually widen toward the edge portion 320, the rigidity at the edge portion 320 is appropriately reduced, so that deformation is more easily performed. In the drawing, the buffer hole 315 extends from the central portion 310 to the edge portion 320.

In addition, when two or more buffer holes 315 are formed, it is preferable that they are formed symmetrically with respect to the center of the connecting table 300 when viewed from the side. In this configuration, deformation occurs more uniformly, and vehicle departures are effectively prevented.

"V" shaped notches are formed on both sides of the connecting table 300, and a bracket 340 for installing with the guard rail is formed inside the notch.

When the guard rail 100 is a 3W system, it is not necessary to form a separate bracket 340 for attachment, it is sufficient to use the edge portion 320.

Hereinafter, the installation method of the central separator excellent in the shock absorption function will be described.

① First, drill the normal concrete pavement surface.

(2) Then, the pillar 200 is typed into the drilled hole. It can use a hammer work, an electric hammer, etc. by manual labor.

③ Next, the connecting table 300 having the V notch is installed to the support 200 by fixing means such as bolts.

④ Fasten the guard rail 100 to the installed connection table 300 by fixing means such as bolts.

⑤ Insert the reinforcement socket 700 in the interior of the support (200). In this case, the pillar reinforcing socket 700 needs to be disposed to include a point crossing the road surface along the longitudinal direction of the pillar 200. To this end, the insertion of the holding reinforcement socket 700 may be made using a hammer and tablets.

⑥ Fill the gap between the support (200) and the hole of the packaging surface with ascon.

In the figure, although three pillars 200 are provided in one guard rail 100, there is no need to have a special limitation on the number of pillars to be installed.

According to the present invention having the above-described configuration, since the struts constituting the center separator are hollow, and the strut reinforcement sockets are installed in the hollows, the props break or break during vehicle collision. Not only can it be greatly reduced, but it also moderately flexes and absorbs the shock, which greatly reduces the impact on the crash vehicle and the occupant.

Claims (3)

① Step of punching the wrapping surface ② Type the strut 200 into the perforated hole ③ installing connecting rod 300 to the support 200 ④ installing the guard rail 100 on the connecting table 300 ⑤ inserting and installing the reinforcement socket 700 in the interior of the support 200 The method of claim 1, After installing the reinforcing support socket (700) is inserted, the installation method of the central separator excellent in shock absorption, characterized in that it further comprises the step of filling the gap between the hole of the support 200 and the packaging surface. The method according to claim 1 or 2, The strut reinforcement socket 700 is installed, including a point that crosses the lane surface along the longitudinal direction of the strut 200, excellent shock absorption function installation method.

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