Speedway monophasic waveform joist steel guardrail
Technical field
The utility model relates to the traffic safety anti-collision facility being applicable to highways and urban roads engineering, particularly, relates to speedway monophasic waveform joist steel guardrail, is particularly useful for speedway and city expressway.
Background technology
Anticollision barrier, as a kind of traffic safety facilities, plays important protective action to traffic safety.The semi-rigidity rail of China's road and bridge is based on corrugated beam barrier and post and beam guardrail, tradition corrugated beam barrier is divided into two ripple guardrails and three ripple guardrails, the crossbeam of this corrugated beam barrier needs the upper and lower of steel plate and front and back distortion simultaneously stability vehicle energy, and landscape effect is poor; Post and beam guardrail forms crossbeam by many parallel circles or rectangular steel pipe.Corrugated beam barrier and post and beam guardrail have collision lower grade and the shortcoming that rolled steel dosage is large.
The expressway safety accident of current China is multiple situation, and wherein relevant with guardrail accident accounts for 1/3rd, and accident death rate is higher.Main cause has: the anticollision barrier of protection dolly needs flexible setting, and the anticollision barrier of protection cart needs rigidity to arrange; Anticollision barrier, as a kind of important safety protection facility, while blocking errant vehicle, should have enough pooling features; Desirable anticollision barrier should have enough anti-collision level, has again enough pooling features, and when dolly collides, pooling feature plays a role, and allows dolly stop or derives smoothly; Block vehicle while first cushioning when cart collides vehicle is stopped or derives, can not pass through or cross.Meanwhile, as the anticollision barrier of urban road and highway in scenic resort, certain guiding sight line function and landscape effect should be had.
As Chinese patent application CN201220445671.5 and CN200910180462.5 all discloses the technical scheme adopting monophasic waveform joist steel guardrail as anticollision barrier, not only there are good degree of protection, pooling feature, also there is certain guiding sight line function and landscape effect.How can have the pooling feature improved further is the utility model technical problem to be solved.
Utility model content
Main purpose of the present utility model is to provide speedway monophasic waveform joist steel guardrail, to improve buffer effect during vehicle collision guardrail.
The utility model provides speedway monophasic waveform joist steel guardrail, and comprise the column, obstruction block and the monophasic waveform joist steel crossbeam that laterally assemble successively, described obstruction block comprises:
Be assemblied in the vertical side of column sidewall;
The up and down both sides adjacent with vertical side, be arranged in parallel at an angle with level;
The assembling limit relative with vertical side, has the department of assembly matched with the assembling place shape of described monophasic waveform joist steel crossbeam.
By upper, because the both sides up and down of obstruction block are in be arrangeding in parallel with horizontal certain angle, collided at speedway monophasic waveform joist steel guardrail, when obstruction block is subject to the pressure towards column, suffered power part is dissolved the power for vertical direction by described upper and lower both sides, thus reduce the recoil strength of horizontal direction, improve buffer effect.
Preferably, the up and down both sides adjacent with vertical side of described obstruction block are for be obliquely installed towards oblique upper.
By upper, suffered power part is dissolved as power straight up by the upper and lower both sides of obstruction block, improve the spatial altitude of crossbeam in collision process be arranged on obstruction block, can effectively avoid cart roll crossbeam and cross.
Optionally, obstruction block and monophasic waveform joist steel crossbeam and the scab be arranged at therebetween assemble by bolt is integrated.
By upper, the impact resistance power of monophasic waveform joist steel crossbeam can be strengthened by scab assembling.
Optionally, when two pieces of adjacent monophasic waveform joist steel crossbeams are assembled to scab, the male and female round plug mode that disappears is adopted to splice assembling.
By upper, make two pieces of adjacent monophasic waveform joist steel crossbeams at scab place fitting tight, the impact resistance power of monophasic waveform joist steel guardrail can be strengthened.
Optionally, on the assembling limit of described obstruction block, vertical direction has one or more departments of assembly, to assemble a row or multi-row monophasic waveform joist steel crossbeam.
By upper, form multilayer crossbeam by the monophasic waveform joist steel crossbeam assembling two rows or more, compact car and large car can be applicable to respectively.
Optionally, the rigidity being arranged at the monophasic waveform joist steel crossbeam of below is not more than the rigidity of the monophasic waveform joist steel crossbeam of top.
By upper, according to the different requirements of different sections of highway anti-collision level, by the distribution of different-stiffness crossbeam, different bufferings can be formed, the safety to vehicle during increase vehicular impact.
The lower edge lengths of described obstruction block equals edge lengths.
The portion of described monophasic waveform joist steel guardrail is coated with the color being beneficial to and guiding sight line.
By upper, guided the color of sight line by spraying, the safety that vehicle travels can be increased.
Optionally, the described vertical side edge shape of obstruction block and the tangent setting of column sidewall.
By upper, the vertical side side of obstruction block manufactures easily shaping, and cost is low, cost-saving.
Optionally, the described vertical side edge shape of obstruction block and column sidewall shape are coincide and are arranged.
By upper, obstruction block can coincide with column sidewall and assemble, assembling firm stable.
In a word, longitudinally overall power transmission is good for speedway monophasic waveform joist steel guardrail of the present utility model, has that design anti-collision level is high, buffer capacity strong and the advantage of good looking appearance.Structure design is all better than the ordinary steel guardrail of ad eundem in safety, buffering, guiding, economy, view etc.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model speedway monophasic waveform joist steel guardrail.
Reference numeral in detailed description of the invention is as follows:
1-monophasic waveform joist steel crossbeam, the energy-gathering ring of 12-monophasic waveform joist steel crossbeam; 2-scab; 3-obstruction block, the vertical side of 31-obstruction block, the top of 32-obstruction block, 33-obstruction block following, the assembling limit of 34-obstruction block; 4-bolt; 5-bolt; 6-cap; 7-column.
Detailed description of the invention
Referring to Fig. 1, the utility model speedway monophasic waveform joist steel guardrail is described in detail.
The utility model speedway monophasic waveform joist steel guardrail can be used for highways and urban roads engineering, is particularly suitable for safety and cushions the higher speedway of functional requirement and city expressway engineering construction.Speedway monophasic waveform joist steel guardrail is formed by the multiple guardrail subelement assembly connections arranged along road order.Be illustrated in figure 1 a guardrail subelement of highway, be respectively to left side on the right side of Fig. 1: column 7, be assemblied in the obstruction block 3 of column 7 sidewall, be assemblied in scab 2, the monophasic waveform joist steel crossbeam 1 be assemblied in scab 2 of obstruction block column 7 side dorsad.Concrete structure is:
Each column 7 passive is the design of Large space weak separation with trackside along direction of traffic.Column 7 is round steel pipe column, and for the guardrail of A level 160kj, rigidity can be adopted to be not more than the Q235 round steel pipe column of diameter 114mm, thickness 4mm, and the spacing between adjacent upright posts 7 is not less than 4 meters.Cap 6 is equipped with, to make the inner dustproof and waterproof of column 7 of steel pipe type on the top of column.
The sidewall of column 7 is provided with described obstruction block 3, obstruction block 3 is in hollow tubular, it comprises the vertical side 31 being installed on column 7 sidewall, by bolt 4, this vertical side 31 of obstruction block 3 is assemblied on the sidewall of column 7, in order to install firmly, bolt 4 can adopt stay bolt, and the relative sidewall penetrating column 7 is installed.The up and down both sides 32,33 adjacent with vertical side 31 of obstruction block 3 be arranged in parallel towards oblique upper, and the angle that namely vertically side and top 32 are formed is that obtuse angle is arranged.The another side relative with vertical side 31 of obstruction block 3, immediate shipment cobordant 34 has department of assembly, and the shape of department of assembly can be set to match with monophasic waveform joist steel crossbeam 1 shape that will assemble.Wherein, vertical side 31 shape of obstruction block can be tabular, i.e. setting tangent with column sidewall, and so vertical side 31 manufactures easily shaping, and cost is low, cost-saving.In addition, if do not consider the problem of cost, the described vertical side edge shape of obstruction block also can be coincide with column sidewall shape and be arranged, and such obstruction block can coincide with column sidewall and assemble, assembling firm stable.
Because the up and down both sides 32,33 adjacent with vertical side 31 of obstruction block 3 be arranged in parallel towards oblique upper, collided at guardrail, when obstruction block 3 is subject to the pressure towards column 7, described upper and lower both sides are due to stressed, upper and lower both sides 32,33 clockwise direction in Fig. 1 is rotated, thus improve the spatial altitude of crossbeam in collision process be arranged on obstruction block 3, like this, can effectively avoid cart roll crossbeam and cross.This deformation process of obstruction block 3, dissolves the impact force part towards column 7 as strength upward, thus also reduces anti-force, namely improve buffer effect.
Department of assembly on the assembling limit 34 of obstruction block 3 is provided with scab 2, adopts steel plate.Scab 2 for assembling monophasic waveform joist steel crossbeam 1, and connects the monophasic waveform joist steel crossbeam of adjacent barrier plank unit.Wherein, by bolt 5, described monophasic waveform joist steel crossbeam 1, scab 2 and obstruction block 3 are assembled.The design quantity of bolt 5 requires to determine according to guardrail anti-collision level.When connecting the monophasic waveform joist steel crossbeam of adjacent barrier plank unit, adjacent monophasic waveform joist steel crossbeam joint can adopt the male and female round plug mode that disappears to splice and be assembled on scab 2.The impact resistance power of monophasic waveform joist steel crossbeam 1 can be strengthened by scab 2.
Wherein, described male and female disappear round plug splicing, refer to the overlapping position stacked at adjacent monophasic waveform joist steel crossbeam 1, be fitted in another monophasic waveform joist steel crossbeam arcuation place after being removed by the part energy-gathering ring 12 of monophasic waveform beam crossbeam 1 upper and lower sides being held down placement, and be assembled on scab 2 by the bolt hole pre-set.
In addition, according to the requirement of guardrail anti-collision level, on described obstruction block 3, can arrange on assembling limit and arrange shape, measure-alike monophasic waveform joist steel crossbeam more, form the multilayer crossbeam of vertical direction.Wherein present embodiment illustrates the embodiment being assembled with two row's crossbeams.When assembling two row or more crossbeam, the rigidity of the monophasic waveform joist steel crossbeam that lower row is arranged is not more than the rigidity of the monophasic waveform joist steel crossbeam of row, to form classification buffering.
Further, when being equipped with many row's crossbeams, applicable color can be used to carry out spraying for guiding sight line, such as, use yellow spraying at driving bend place.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.