KR20140106890A - Mult-Connector and method of conneting barrier thereof - Google Patents

Abstract

The present invention relates to a method and a device enabling the rigidity of two barrier beams which have different shapes and rigidity and are connected to each other to be transferred from the less rigid beam to the more rigid beam through a connector box which different cross-sections enabling different cross-sections to be pulled. The beams and a box are interlocked by the plastic deformation of the beams′ cross-section in a fastening bolt and the box in case of a crash to completely connect the two beams to return a crashed vehicle in a lane without any further tensile fracture.

Description

Technical Field [0001] The present invention relates to a multi-connector for a high-strength transition section and a multi-

The present invention relates to a road accessory for connecting a longitudinal barrier having different stiffness and shape to each other to prevent vehicle departure due to breakage of a connecting portion, and to smoothly turn a direction to lead to a lane.

The present invention relates to the behavior when a vehicle collides with a barrier having a different structure and material and the motion of the collision vehicle. As the longitudinal barrier of the road, there are various guard rails of a road side, a rail for a bridge, and a median barrier. Especially, iron guard rails are often used as the barriers for the side barriers. An important characteristic of longitudinal barriers is to contain the vehicle and return the vehicle to the lane normally without dangerous impact on the occupant. Therefore, the consistency of the connectivity and strength of the barrier beam is important. However, various types of barriers are installed on roads with different cross-sectional strengths, and the problem is that a portion where heterogeneous barriers are connected is a vulnerable portion in a collision.

The present invention is typically applicable to a bridge rail having a cross section and a material having a different material cross section at a point where a guard rail is to be connected, such as a connecting section of a guard rail for a roadside and a guard rail for a cross section, Even if the possibility of damage to the part is large and completely connected, if there is a large stiffness difference between the two barriers, there is a high possibility that the vehicle is excessively decelerated (snagging) and the traveling direction of the vehicle is severely pocketing. And to disclose a specific means for this. That is, the connection must be sufficiently strong and that the change slowly takes place from any barrier stiffness to another stiffness. The problem is that the design of the connection is required for each connection because the cross-sections and materials of the installed barrier or bridge railing vary. The present invention discloses a connector in a simple manner for easily connecting longitudinal barriers having different geometric rigidities to each other, thereby avoiding designing of a complicated connection site for each barrier type and ensuring performance required for a barrier connection.

According to an aspect of the present invention, there is provided a connector for connecting both ends of different barriers, wherein both sides of the connector are made of an insertion fixing part having a size corresponding to the barrier, Wherein a stopper is formed in a shape of a jaw which is capable of engaging with a barrier of a larger size among differently inserted and fixed barriers.

By using a multi-connector that allows various types of inter-barrier connections instead of designing connections for each of the two different types of barrier connections, it is possible to change the strength and progressive stiffness of barrier-to-barrier connections of various cross sections . The multi-connector is preferably a steel box type in which beam cross-sections having various widths, thicknesses, and depths can be introduced, so that cross-sections at both ends are made different from each other so that barrier beams of different cross-sections can be connected. The connection has a greater rigidity of the connector than the incoming beam without bolting and is inter-locked in the connector box by causing a large plastic deformation of the barrier introduced during the collision, It is preferable to make it behave as a tensile material without being separated by bending. At this time, it is necessary to secure a sufficient pull-in length.

Further, the present invention provides a method for connecting both ends of two barriers having different cross-sectional sizes using the multi-connector, wherein both sides of the barriers correspond to the barrier Wherein a stopper is formed in the body portion of the connector, the stopper being in the form of a jaw capable of engaging with a barrier of a larger size among the different barriers inserted and fixed on both sides of the connector, Inserting an insertion fixing portion having a small cross section of the multi-connector into a barrier having a small cross section among the two barriers, the insertion of the insertion fixing portion being deeper than the final insertion length, Then, the multi-connector inserted into the barrier having a small cross section is inserted into a barrier having a small cross- So that the cross section is moved to the end of the large barrier so that the barrier of the larger cross section is caught by the stopper, and fixing the two barriers and the multi-connector. Disclosed is a method for connecting different sized barriers using a multi-connector.

By using the present invention, the connection between the two barriers having different cross-sectional shapes and sizes can be simplified, and the connectivity between the different barriers and the natural strength transition can be achieved. The present invention is simpler than the conventional method of punching and bolting a plate. The same concept can be used not only for the connection of different barriers but also for the connection of all or part of the severed barrier or each beam.

1 is a front view of a multi-connector device for a strength transition section
2 is an isometric projection conceptual diagram of a multi-
Fig. 3 is a schematic view showing the construction of a multi-

The present invention is a connector for connecting the opposite ends of different barriers, wherein both sides of the connector are made of an insertion fixing part having a size corresponding to the barrier, And a stopper, which is in the form of a jaw capable of receiving a barrier of a larger size, is formed.

Hereinafter, the present invention will be described in detail by way of examples. However, the scope of the present invention is not limited to the following embodiments. The details of the embodiment of the present invention will be described in detail with reference to FIGS.

The multi-connector box 200 includes a metal box, a stopper 210, and a fastening bolt 220 having opposite ends. The steel box has a larger structural rigidity (larger thickness and strength) than the guardrail beam introduced into it. The cross section of the box is made as close as possible to the thickness and width of the incoming beam. And are formed into boxes of different sizes depending on the type of the incoming beam.

A barrier 100 having a large cross section is drawn on the side having a large cross section on both sides of the multi connector 200 and a barrier 110 having a small cross section is drawn on the side having a small cross section. The inserted barrier is fixed by a stopper 210 and a tightening bolt 220 to control the left and right sliding.

Hereinafter, a method of constructing a multi-connector will be described. Inserting the multi-connector into a barrier having a small cross section among the two barriers with a small cross section of the multi-connector, but inserting it more deeply than the final insertion length; The multi-connector inserted into the barrier having a small cross-section is pushed to the end of the barrier having a large cross-section while the barrier is inserted into the barrier having a small cross-section so that the barrier having the larger cross- And fixing the two barriers and the multi-connector. According to the present invention, there is provided a method of connecting a plurality of barriers of different sizes using a multi-connector.

Referring to FIG. 3, a method of connecting the barrier having different cross sections using the manufactured box is as shown in FIG. 3, first, the multi-connector 200 is pushed into the barrier 100 having a small cross-section. 3, a barrier 120 having a large cross section is constructed as shown in (2) of FIG. 3, and a multi-connector 200 is formed in a large size until the stopper 210 is caught by a beam having a large cross- To the beam of the cross section. Finally, the fastening bolt 220 is turned through a screw hole formed in the multi-connector 200 to allow the bolt end to press the beam cross-section. The tightening bolt serves to help the beam come into close contact with the multi-connector 200. One embodiment of the drawings to which the present invention is applied is an example of a barrier to be connected for ease of explanation, which is a combination of a Thrie beam having a relatively large cross section and a W beam having a relatively small cross section Respectively.

The operation of the multi-connector 200 will be described. The beam of the barrier connected by the multi-connector has various shapes such as a tri-beam (Beam), a W-beam, a square or a circular beam. These beam sizes are substantially coincident with the inside of the multi-connector 200 and are compressed by the tightening bolts 220. If the warping occurs after the collision, a large plastic deformation is generated in the multi-connector 200 (Inter-locking) by a multi-connector (200) to maintain the connected state without falling out. As the collision proceeds, the deflection increases, And return to the lane.

100 Thrie Beam
110 W Beam
200 Multi-Connector
210 Stopper
220 tightening bolts

Claims (5)

A connector for connecting two ends of different barriers,
Wherein both sides of the connector are made of an insertion fixing part having a size corresponding to the barrier,
Wherein a stopper is formed in the body of the connector, the stopper being in the form of a jaw capable of engaging with a barrier of a larger size among the different barriers inserted and fixed on both sides thereof,
The method according to claim 1,
Wherein the connector is formed of a material having greater stiffness than the barrier. The multi-
The multi-connector according to claim 1, wherein a screw hole for fixing the barrier is formed on the insertion fixing portion of the connector.
The multi-connector according to claim 2, wherein the barrier is fixed by fastening bolts passing through threaded holes of the connector
A method for connecting two ends of two barriers having different sizes in cross section, comprising the steps of: connecting the both ends of different barriers, wherein both sides of the connector are made of an insertion fixing part having a size corresponding to the barrier, Wherein a stopper is formed in the body portion of the connector, the stopper being in the form of a jaw capable of engaging with a barrier of a larger size among the different barriers inserted and fixed on both sides of the connector, Inserting a small inserting portion having a small cross section of the multi-connector into the small barrier,
The multi-connector having the cross section inserted into a small barrier is pushed to the end of the barrier having a large cross section in a state where the cross section is inserted into a small barrier, and the stopper Allowing the barrier of the larger cross-section to engage
And fixing the two barriers and the multi-connector. The method of connecting the barriers of different sizes using the multi-connector

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