KR200200299Y1 - Structure of circular steel pipe props and crossbeams for traffic signs with reinforced ribs - Google Patents

Abstract

The present invention is designed to increase the force to resist moments, axial forces and shear forces caused by self and wind loads in circular steel pipe struts and horizontal beams of traffic signs installed on roads. The present invention relates to a structure of a circular steel pipe pillar and a cross beam for a traffic sign, which is characterized by internally fixing steel reinforcing ribs such as '┃' and '╋' inside the pillar and the cross beam circular steel pipe so as to be large.

Description

Structure of Circular Steel Pipe Shore and Cross Beam for Reinforcement Ribs with Built-in Reinforcement Ribs {.}

The present invention relates to the structure of the POST and HORIZONTAL MEMBER of traffic signs installed on the road, and the pillars and crossbeams can withstand greater weight and wind load.

Generally, it is made of round steel pipe in consideration of the aesthetics of the surrounding roads and lands used for traffic signs, and the traffic of vehicles and people. All.

In the case of steel pipes used as structural members, the cross-sectional shape determines the magnitude of the force that resists its own weight and external forces. That is, the axial force and the shear force are the cross-sectional area of the member, the moment is the main factor is the cross-sectional secondary moment. In the case of steel pipes used as structural members, since the outer diameter and thickness are standardized and produced, conventionally, when the stress that a member lacks is insufficient, a thick tube is used at the same outer diameter, and when the steel pipe is insufficient, a large outer diameter is selected. However, in the case of traffic sign props, it is not recommended to select a pipe with a large outer diameter considering the area of road occupied by the installation of the prop and the traffic obstacles caused by the reduction of traffic field. The cross beam is advantageous in the form of an inner beam (cantilever) in view of its own weight and aesthetics. In addition, after a long time after the installation of traffic signs, the moment due to wind load accumulates and repeats, causing severe shaking of the landlord and sagging of crossbeams, which affects the anxiety of passers-by and the road environment.

In order to supplement the existing problems, the present invention intends to increase the resistance stress as a structural material by increasing the cross-sectional area and the cross-sectional secondary moment in the props and cross beams of traffic signs. In other words, by internally fixing steel reinforcement ribs of appropriate dimensions and shapes obtained through structural analysis in the internal spaces of the pillars and cross-section steel pipes, the cross-sectional area and cross-sectional secondary moment of the pipes are enlarged, which is more than the outer diameter of the conventional posts and cross-sections used Its purpose is to make it possible to use a smaller diameter steel pipe.

1 and 2 are diagrams showing an example of a traffic sign installation applying the present invention.

3 is a cross-sectional view taken along the line A-A of FIGS. 1 and 2;

4 is a cross-sectional view taken along line B-B in FIGS. 1 and 2;

5 and 6 are cross-sectional views taken along line A-A and line B-B of FIGS. 1 and 2 showing examples of '보강' -shaped and radiation type reinforcing ribs of the present invention.

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

1: traffic sign prop 2: traffic sign crossroad

3: Traffic sign 4: Reinforcement rib

To look at the technical configuration of the present invention to achieve this purpose.

It is characterized by internally fixing steel reinforcing ribs such as '┃' shape and '╋' shape in traffic sign props and cross beams.

An embodiment of the present invention will be described with reference to the accompanying drawings.

When the traffic sign circular steel pipe props and cross members with reinforced ribs of the present invention are needed, first obtain the outer diameter, thickness, size and shape of the reinforcing ribs through structural analysis, and then manufacture the reinforcing ribs according to the design. Insert the steel pipe (Fig. 3, Fig. 2, 2) into the inner diameter through. (4, 4, 4) and the steel pipes and internal reinforcing ribs are fixed by welding, bolt fixing brackets, etc. FIGS. 5 and 6 have a '''shape, Sectional views of round steel pipes with reinforcing ribs.

According to the present invention as described above, in the round steel pipes used as props and cross members of traffic signs, the steel reinforcing ribs are placed inside the pipes so that the cross-sectional area and cross-sectional secondary moments of the posts and cross members are increased, so that the posts and cross members are wind loads and other The stress that can resist is increased, so that it can be used with a smaller outer diameter. Therefore, not only the traffic obstacles are alleviated, but also the rigidity is increased, which can greatly improve severe shaking and sagging.

In addition, the resistance that corresponds to the shear force generated when the driving vehicle hits the sign posts is also increased, thereby reducing the damage caused by cutting the sign posts during a large collision.

In addition, since the outer diameter and thickness of the circular steel pipe used for the production of props and crossbeams on the traffic sign are standardized and produced, there was a problem in that, when the outer diameter was adopted due to lack of stress, a surplus cross section more than necessary was used.

However, the present invention is a useful design in terms of economics because it can cope with such problems properly.

Claims (7)

In the circular steel pipe props and crossbeams for traffic signs, The structure of the circular steel pipe props and cross beams for the traffic sign boards, characterized in that the reinforcing ribs are internally fixed at least one steel reinforcement rib of a predetermined thickness in the longitudinal direction in the inner space of each of the circular steel pipe struts and cross beams. The method of claim 1, The steel reinforcing ribs in the inner space of the circular steel pipe support for traffic sign are constructed in a '┃' shape so that its cross section faces the longitudinal direction of the cross beam. The method of claim 1, Circular reinforcing steel pipe for traffic sign The steel reinforcing ribs in the inner space of the cross beam are constructed in a '┃' shape so that its cross section faces the longitudinal direction of the steel pipe column. The method of claim 1, The steel reinforcing rib in the inner space of the circular steel pipe support for traffic sign is a structure of a circular steel pipe support for a traffic sign with reinforcing ribs, characterized in that the section is fixed internally to form a '╋' shape. According to claim 1, Circular steel pipe cross beam for traffic sign A structure of a circular steel pipe cross beam for a traffic sign with reinforcing ribs characterized by steel reinforcement in the interior space. The method of claim 1, The steel reinforcing ribs in the inner space of the circular steel pipe support for traffic sign are constructed in a radial shape so that the cross section is directed in the longitudinal direction of the steel pipe column. The method of claim 1, Circular steel pipe cross beam for traffic sign The steel reinforcing rib in the inner space of the structure of the circular steel pipe cross beam for the traffic sign, characterized in that the cross-section is formed in a radiation type.