CN2635728Y

CN2635728Y - Plug-in type barrier

Info

Publication number: CN2635728Y
Application number: CN 03208715
Authority: CN
Inventors: 贾日学; 石红星; 田瑞红; 唐键; 李晓明
Original assignee: SHENHUAKE TRAFFIC ENGINEERING Co Ltd BEIJING
Current assignee: SHENHUAKE TRAFFIC ENGINEERING Co Ltd BEIJING
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-08-25
Anticipated expiration: 2013-08-29

Abstract

The utility model relates to a road steel barrier with a structure that the column of the barrier of the prior art is divided into a top part and a bottom part; wherein the bottom end of steel tube of the top column is inserted into the steel tube of the top end of the bottom column with a bolt going inside to connect the top column and the bottom column together. With reinforcement of the bottom column that casings or other technologies are applied to prevent the bottom column from deformation and partly or complete weakening of the top column to control the deformation position of the column in a barrier, the sectional anti-bending modulus is reduced as the moment arm is reduced, which insures the anti-collision grade of the utility model is no lower than the design with the standard of the prior art. The utility model is easy for working and convenient for replacement after collision by vehicles; the utility model is applicable loess road shoulders, baffle walls and bridges as well as various steel barriers.

Description

The plug-in guardrail

Technical field

The utility model belongs to the road safety device, particularly a kind of swapping type road guard.

Background technology

Traditional road guard (steel guard rail) exists such problem after collision, column is crooked because of collision, during reparation, to use crane that column is extracted mostly, perhaps use cutting machine to cut crooked column, new column is gone up in welding again, makes that reparation is very difficult.Thereby be provided with the swapping type guardrail in the standard, to make things convenient for the replacing of fence upright.China Patent No. is that 90209012.6 utility model discloses a kind of extractable and changeable road safety barrier device, its designed Body of pillar is made up of bloom-base, guard post, Urgent device for safety guard fences keeping vehicles on the road, bearing device, tubular protecting cover etc., compounding practice by means of Urgent device for safety guard fences keeping vehicles on the road and bearing device, unclamp the lifting of regulating guard post with locking, control the dress of taking out of guard post, but in use reflect not only complex process of this kind guardrail, and degree of protection is on the low side, can not satisfies actual needs.

The utility model content

The technical problems to be solved in the utility model is the shortcomings and deficiencies that exist in the above-mentioned existing road guardrail technology for overcoming, design a kind of novel plug-in guardrail, not only to guarantee the protective range of guardrail, will be easy to construction simultaneously, after vehicle collision, also can change easily.

Basic design of the present utility model is divided into two original fence upright, construction respectively, replacing after being convenient to simultaneously collide, by reinforcement to original guardrail lower pillar stand, promptly use sleeve pipe or other technology to prevent the distortion of bottom fence upright, by the part of top fence upright being weakened or all weakening the deformation position of controlling fence upright, though the arm of force reduces like this, but the cross section composite bending modulus also reduces simultaneously, thereby guarantees that crashproof power is not less than the primary standard design.The technical measures that the utility model is taked are that fence upright is divided into two parts up and down, and the steel pipe lower end of upper pillar stand is enclosed within the steel pipe upper end of lower pillar stand, has bolt to cross wherein, will go up the lower pillar stand steel pipe and link together.This bolt crosses lower pillar stand abreast with the runway direction.In the lower pillar stand steel pipe or outside also be with the reinforcement steel pipe.The cross section composite bending modulus of upper pillar stand steel pipe is less than lower pillar stand steel tube section composite bending modulus.And the upper end edge port of lower pillar stand steel pipe seals.

The utility model beneficial effect compared with prior art is that it has significantly reduced the difficulty that guardrail is hit the back renovation technique, has reduced maintenance and maintenance cost, has also reduced the maintenance of equipment of guardrail, reduces the highway operation cost greatly, has good economic benefit.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 to Fig. 5 is the structural representation of the different embodiment of the utility model.

Wherein: the 1-upper pillar stand; The 2-lower pillar stand; The 3-bolt; Cover steel pipe in the 4-; The 5-outer steel pipe; 6-concrete guardrail basis; The 7-sealant; The 8-guardrail board.

The specific embodiment

As shown in Figure 1, the utility model comprises the last lower pillar stand of being made by steel pipe, and the lower end of upper pillar stand 1 is enclosed within the upper end of lower pillar stand 2, and bolt 3 laterally runs through wherein by the center line of last lower pillar stand, to go up lower pillar stand and link together, bolt 3 should be parallel with the runway direction.The steel tube section composite bending modulus that its lower pillar stand 2 is adopted is greater than the cross section composite bending modulus of upper pillar stand 1 steel pipe.In the upper end of lower pillar stand steel pipe, be provided with sealant 7 along port, in case foreign matter enters between the lower pillar stand steel pipe, influence the plug of column.Sealant can be selected sealants such as rubber seal, resin or asphalt mastic for use.

Fig. 2 and shown in Figure 3 be that the utility model is applied to the drilled pile steel guard rail, as shown in the figure, lower pillar stand 2 is the drilled pile steel pipe, cover steel pipe 4 or outer steel pipe 5 in the stiffener are placed on the inside or the outside of drilled pile steel pipe, to strengthen the intensity of fence upright bottom, guarantee that the collision rear lower is indeformable, stiffener also can use steel tubes, as long as can reach the purpose of strengthening the bottom.The same Fig. 1 of all the other structures.

Fig. 4 and shown in Figure 5 be the structural representation that the utility model is applied to concrete basis steel guard rail, as shown in the figure, lower pillar stand 2 is embedded in the concrete guardrail basis 6, all the other structures are ditto schemed.

The utility model is to control the fence upright deformation position by the part of top fence upright is weakened or all weakened, compare the cross section composite bending modulus that reduces upper pillar stand with the structure of syn-collision grade mutually, and according to the failure position difference and reduction scope difference, excursion can be 30%～100% of original member composite bending modulus.Can directly remain unchanged as keeping the upper pillar stand inside/outside by reducing the scantling of upper pillar stand, its wall thickness of attenuate perhaps keeps the upper pillar stand wall thickness constant, reduces its inside/outside and directly reaches the purpose that all weakens.Reach the purpose that only position of hope distortion is weakened by upper pillar stand being carried out ring cutting or part cutting.

The utility model also can adopt the sectional area that increases lower pillar stand to the reinforcement mode of lower pillar stand, as adopting the physical dimension bigger than the fence upright of identical degree of protection, uses concrete foundation etc.Make the composite bending modulus in lower pillar stand cross section increase to original 120% at least.Also can adopt part to strengthen to lower pillar stand, not line up as lower pillar stand upper end and its inside/outside sleeve pipe upper end.

Claims

1, a kind of plug-in guardrail comprises steel pipe post and guardrail board, it is characterized in that its column is divided into two parts up and down, and the steel pipe lower end of upper pillar stand is enclosed within the steel pipe upper end of lower pillar stand, has bolt to cross wherein, will go up the lower pillar stand steel pipe and link together.

2, plug-in guardrail according to claim 1 is characterized in that said bolt and runway direction cross lower pillar stand abreast.

3, plug-in guardrail according to claim 1 is characterized in that also being with the reinforcement steel pipe in lower pillar stand steel duct or outside.

4, plug-in guardrail according to claim 1, the cross section composite bending modulus that it is characterized in that its upper pillar stand steel pipe is less than lower pillar stand steel tube section composite bending modulus.

5, plug-in guardrail according to claim 4 is characterized in that the scantling of the scantling of upper pillar stand steel tube place employing less than lower pillar stand.

6, plug-in guardrail according to claim 4 is characterized in that having on the upper pillar stand steel pipe ring cutting or part cutting.

7, require according to aforesaid right in the described plug-in guardrail of each claim, it is characterized in that the upper end edge port of lower pillar stand steel pipe seal, employing rubber seal or tar seal or resin-sealed dose.