KR20000016041U - Member of double pipe for civil engineering and construction - Google Patents

Abstract

The present invention relates to a double pipe (PIPE) for civil construction, aluminum, stainless steel, other light metals, a composite hollow-shaped pipe material drawn and extruded as a synthetic resin, particularly a railing structure. It is to be used properly and effectively in the construction of vehicle protection measures, guard rails and the like.

Its configuration is particularly disclosed as forming a double tube member which draws out the tube material as aluminum, but forms an inner tube on the exterior and integrates ribs between the exterior and the inner tube, and various embodiments such as ellipses, circles, squares, triangles, etc. Forms and ribs can be used as double-sided ribs, single-sided ribs, and double ribs, and can accommodate all other materials and cross-sectional shapes.

Description

Member of double pipe for civil engineering and construction

The present invention relates to a double pipe (PIPE) for civil construction, more specifically, aluminum, stainless steel and other light metals, drawn out as a synthetic resin, extruded composite hollow-shaped pipe material, especially the bridge top structure. It can be effectively used for construction of vehicle protection measures and guard rails.

In the structure of the pipe used in the conventional bridge railings or civil engineering facilities, the first material is made of cast iron pipe, steel pipe, copper pipe, aluminum pipe, plastic pipe and is formed in the shape of a nearly round to square pipe, and part of the structure However, due to the weak side strength of the pipe, the structure of the bridge railings is caused by an accident that the vehicle bends or breaks due to the slight impact of the vehicle.

However, if it is molded in the form of rods rather than pipes, its weight and facility cost are enormous and thus cannot be applied.

Eventually, the pipe is molded to about 6 tons of thickness, which is not enough for side impact.

Numerous bridges and expressway industrial roads are being built in line with the national economic development, and these INFRA facilities have serious public interest problems. Therefore, low cost and maximum safety must be established.

However, the shapes and strengths of conventional cast iron pipes, steel pipes, simple aluminum pipes, and stainless steel plastic pipes are insufficient in conventional visual defenses as a means of defense against various accidents and in a beautiful appearance.

For civil construction pipes such as bridge railings, the above problems are satisfied by constructing a simple round pipe type single pipe without any countermeasures.

The present invention discloses the formation of a double tube material for forming an inner tube on the exterior and integrating a rib between the outer tube and the inner tube, in particular, to carry out the object as described above, in particular, aluminum and stainless steel. Various shapes and ribs such as oval shape, circle shape, square shape, and triangular shape can be used as single-sided ribs and double-ribbed ribs, and it is completed by providing double pipes that can accommodate all other materials and cross-sectional shapes. .

1 is a perspective view of the present invention

2 is another embodiment of the present invention

3 is a schematic view of the present invention.

<Description of the code | symbol about the principal part of drawing>

(1) (1 '): front and back (2) (2'): curved surface

(3): appearance (4): inner tube

(5) (5 '): Rib (6): Groove

(7): Luminous reflector (A): Double tube material

If described in detail in conjunction with the accompanying drawings an embodiment for performing the above problems as follows.

1 is a perspective view of the present invention,

2 is another embodiment of the present invention,

3 is a schematic view of the present invention,

In the double pipe member whose exterior and inner pipe are connected by ribs,

The front and rear surfaces (1) and (1 ') are straight and the upper and lower surfaces are curved (2) and (2'), so that the whole oval exterior 3 and the inner tube 4 and the upper and lower ribs 5 and 5 'are integrated. It is basically based on the manufacture of the double pipe material (A), which is molded from ash, and constructed as a bridge rail or other civil construction facility member.

Thus, the appearance 3 can be saved in about 3 tons. Also, as shown in FIG. 2, the groove 6 is formed in a part of the front surface, and the luminous reflector 7 is inserted into the groove 6 in the longitudinal direction to emit light at night, thereby providing a function of traffic safety display. It was made.

Also as shown in FIG.

The embodiment can be irradiated with circles, squares, triangles and ribs on both sides, single side, double ribs, and the material may also be made of cast iron pipes, steel pipes, copper pipes, stainless steel pipes, plastic pipes and the like.

In the present invention, since the outer tube and the inner tube are formed in a double shape and connected to each other as ribs, durability and impact absorbing force against side impacts in the strength test were significantly increased compared to those of a single tube.

Since it is a double tube of the exterior and the inner tube, it is obvious that the strength is improved even if there is no separate structural analysis, so the detailed data presentation is omitted.

In addition, by attaching the luminous reflector plate in its entire length as in the embodiment, it is possible to contribute to the prevention of bridge and road departure for vehicles running at high speed because the night display of the safety area is clear.

And the conventional single pipe is bent immediately by the first collision does not play a role as a safety equipment, but the present invention the double pipe is to maximize the efficiency as a safety equipment by absorbing the collision energy in the second and third.

The present invention described above is mainly made of aluminum by drawing a thickness of about 3 tons compared to the conventional 6 tons of pipe material requires less material and cheaper and lighter in terms of cost and weight.

And it is superior to 6t structure in strength and durability.

On the other hand, due to the double pipe, the endurance in the side impact is much better, especially at night.

In particular, the double pipe member of the present invention has an effect that can be immediately applied to railings or roads that are the bridge superstructures.

Claims (1)

In the double pipe member whose exterior and inner pipe are connected by ribs, The shape of the front and rear surfaces 1, 1 'is a straight line, and the upper and lower surfaces have an elliptical appearance 3 within 3t, and an inner tube 4 inside and out of the top and bottom ribs 5, respectively. A double pipe member (A) which is pulled out of aluminum to be integrated with the The shape is the double pipe member in which the groove 6 was formed in a part of the front surface of the exterior 3, Civil construction double pipe, characterized in that the.