CN109898412B - Assembled bridge sidewalk car-blocking and crossing anti-collision guardrail - Google Patents
Assembled bridge sidewalk car-blocking and crossing anti-collision guardrail Download PDFInfo
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- CN109898412B CN109898412B CN201910221246.4A CN201910221246A CN109898412B CN 109898412 B CN109898412 B CN 109898412B CN 201910221246 A CN201910221246 A CN 201910221246A CN 109898412 B CN109898412 B CN 109898412B
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Abstract
The invention discloses an assembled bridge sidewalk car-blocking and overturning anti-collision guardrail, which comprises a guardrail main body along a roadway direction, wherein the guardrail main body is arranged on a curb through a plurality of anchoring seats arranged in parallel along the roadway direction, each anchoring seat comprises a vertical piece, and the vertical piece is anchored on the vertical face of the curb through a horizontal anchor bolt; under the action of transverse horizontal force borne by the upper part of the anchoring seat or transmitted by the railing, pulling force generated on the front resistance plate is transmitted to the sidewalk curb through shearing resistance of the embedded anchoring bolt; because the size of the vertical face of the sidewalk curb is large enough, the horizontal anchoring bolt implanted into the vertical face of the sidewalk curb has good anchoring performance because the size of the peripheral concrete is enough, the shearing resistance of the anchoring bolt can better ensure the reliability of the combination of the front resistance plate and the vertical face of the sidewalk curb when the front resistance plate bears the tensile force, and the problem of preventing an automobile from climbing over the sidewalk and falling off is better solved from the aspects of the structure of the handrail and the anchoring seat and the anchoring mechanical principle of the handrail and the sidewalk curb.
Description
Technical Field
The invention belongs to the field of road and bridge engineering, and particularly relates to an assembled bridge sidewalk car-blocking and climbing anti-collision guardrail.
Background
The existing bridge railings can be roughly divided into three types: one is a rigid anti-collision guardrail arranged at the edge of an unmanned walkway step bridge, and mainly has the main function of preventing an out-of-control vehicle from falling under the bridge, and is usually a concrete anti-collision guardrail capable of resisting strong horizontal impact force; the second type is a sidewalk rail which mainly has the function of preventing pedestrians from falling and is a lighter guardrail capable of bearing the transverse horizontal thrust of people; the third type is lane dividing railings, which are mainly used for guiding and weak collision prevention, such as the railings of a highway dividing strip, and do not have the function of preventing an out-of-control vehicle from falling into the underbridge.
In recent years, accidents of major economic and life losses caused by the fact that an out-of-control automobile climbs up and falls into the bridge below a step of a bridge sidewalk occur. In the prior art, the handrail upright post anchoring seats are arranged on the sidewalk curb stone, two or more rows of metal tubes which are parallel upwards are fixed between the anchoring seats, the structure is light, and the installation is simple and convenient; however, in the guardrail structure, the metal pipe structure has a poor effect on preventing the vehicles from turning over, and a single metal pipe is easy to lose efficacy under stress, so that the vehicles cannot be prevented from continuing to turn over or collide. In addition, the anchoring seat is directly anchored by implanting vertical anchor bolts on the upper surface of the curb, and after a vehicle hits the protective guard, the anchor bolts are mostly pulled out to cause failure, so that the continuous development of accidents that the vehicle climbs over a sidewalk cannot be prevented, namely the guardrail and the anchoring seat thereof are unreasonable in structure and unreliable in force transmission, can play an isolation role and are difficult to resist the action of transverse impact force of the vehicle; particularly, the conventional assembled steel guardrail is additionally arranged at the edge of the sidewalk, the bottom plate of the anchoring seat of the guardrail is fixed by the implanted bolts abutting against the four corners, and particularly, the concrete protective layer of the bolts at the outer edge is small in thickness and can be easily pulled out or sheared off under the action of transverse impact force.
In order to solve the problems, the concrete anti-collision guardrail is additionally arranged on the curb at the edge of the sidewalk, so that the accident of falling of an out-of-control vehicle can be avoided, but the load and the construction cost of the bridge can be obviously increased, the construction has a large influence on the normal use of the bridge, the economy is poor, and the construction is difficult to recover after being hit; and, the required space size of concrete crash barrier is big, and is obvious to encroaching on former pavement width of use, and whole outward appearance is relatively poor.
Therefore, aiming at the problem of preventing an out-of-control automobile from climbing up and falling into the underbridge beyond the steps of the sidewalk of the bridge, the existing guard railing needs to be improved, the stress state of the anchoring structure of the guard railing is changed, when an automobile collision accident happens, the anchoring structure can form enough capability of resisting the transverse collision of the automobile, the failure is avoided, and the high reliability is achieved; meanwhile, the guardrail has the advantages of light overall structure, direct assembly and forming during use, simple installation and lower use cost.
Disclosure of Invention
In view of the above, the invention aims to provide an assembled bridge sidewalk car-blocking and overturning anti-collision guardrail, which changes the stress state of a guardrail anchoring structure, and when a car collision accident occurs, the anchoring structure can form enough capacity of resisting the lateral collision of a car, thereby avoiding failure and having higher reliability; meanwhile, the guardrail has the advantages of light overall structure, direct assembly and forming during use, simple installation and lower use cost.
The assembled bridge sidewalk car-blocking and overturning anti-collision guardrail comprises a guardrail main body along the direction of a roadway, wherein the guardrail main body is arranged on a curb through a plurality of anchoring seats arranged in parallel along the direction of the roadway, each anchoring seat comprises a vertical piece, and the vertical piece is anchored on the vertical face of the curb through a horizontal anchor bolt implanted into the curb.
Further, the guard rail main body comprises a blocking plate along the direction of the road, and the blocking plate is positioned on the upper part of the vertical face of the curb in a substantially vertical mode.
Furthermore, the vertical part is a front anchoring resistance plate which is attached to the vertical face of the curb and is anchored to the vertical face of the curb through a horizontal anchor bolt.
Further, the anchor seat still includes the horizontal anchor steel sheet as the bed plate, horizontal anchor steel sheet pastes in curb upper surface and through vertical crab-bolt anchor in curb upper surface and tip and preceding anchor resistance board fixed connection.
Furthermore, the front anchoring resistance plate is provided with a supporting and anchoring back plate, the supporting and anchoring back plate is fixedly connected to a set position at the back of the front anchoring resistance plate and is used for supporting the front anchoring resistance plate, and the lower end part of the supporting and anchoring back plate is fixedly connected to the horizontal anchoring steel plate;
the protective guard main body further comprises a blocking back plate, the blocking back plate is fixedly connected to a set position at the back of the blocking plate and used for supporting the blocking plate, and the lower end of the blocking back plate extends downwards;
the two ends of the blocking plate are respectively and fixedly connected to the adjacent front anchoring resistance plates, and the two ends of the blocking back plate are respectively and fixedly connected to the adjacent supporting and anchoring back plates.
Further, the cross section of the structure formed by the blocking plate and the blocking back plate is of an approximately inverted U-shaped, H-shaped or C-shaped plate structure, and the cross section of the structure formed by the front anchoring resistance plate and the supporting anchoring back plate is of an approximately inverted U-shaped, H-shaped or C-shaped plate structure matched with the cross section of the structure formed by the blocking plate and the blocking back plate.
Furthermore, the upper end of the supporting and anchoring back plate is fixedly connected to a set position at the back of the front anchoring resistance plate for supporting the front anchoring resistance plate, and the lower end of the supporting and anchoring back plate extends backwards and obliquely downwards and is fixedly connected to the horizontal anchoring steel plate; the upper end of the blocking back plate is fixedly connected to a set position on the back of the blocking plate and used for supporting the front anchoring resistance plate, and the lower end of the blocking back plate extends towards the rear oblique lower side.
Further, the upper end of the support anchoring back plate is fixedly connected to the top end of the front anchoring resistance plate or the front anchoring resistance plate is directly bent and formed to form an approximate inverted U-shaped structure with a cross section of smooth transition of the top; the upper end of the blocking back plate is fixedly connected to the top end of the blocking plate or is directly bent and formed by the front anchoring resistance plate to form an approximate inverted U-shaped structure with a cross section in smooth transition at the top; .
Furthermore, the installation benchmark of baffling board is basically parallel and level with the curb facade, and fixed connection in be provided with the horizontal bracing board of separation or the horizontal rib that props of separation between baffling board and the separation backplate.
Furthermore, an anchoring cross support plate or an anchoring cross support rib is fixedly connected between the front anchoring resistance plate and the anchoring back plate.
The invention has the beneficial effects that: the assembled bridge sidewalk car-blocking and crossing anti-collision guardrail is specially developed aiming at the problems that an automobile climbing out of control and crossing a sidewalk step to fall into a bridge due to the fact that the height of an existing sidewalk of a bridge is not enough and a barrier is out of control on the basis of three types of bridge railings such as a rigid railing, a common railing and a guide flexible anti-collision railing which are respectively suitable for preventing the automobile from falling off, the pedestrian from falling off and the like; the anchoring seat has simple structure, direct force transmission and reliable anchoring; under the action of transverse horizontal force borne by the upper part of the anchoring seat or transmitted by the railing, pulling force generated on the front resistance plate is transmitted to the sidewalk curb through the shearing resistance of the embedded anchoring bolt; because the size of the vertical face of the sidewalk curb is large enough, the horizontal anchor bolt implanted into the vertical face of the sidewalk curb has good anchoring performance because the size of the peripheral concrete is enough, and the reliability of combination of the front resistance plate and the vertical face of the sidewalk curb can be better ensured when the front resistance plate bears the tensile force due to the shearing resistance of the anchor bolt; the upright post of the conventional assembled guardrail for preventing the pedestrian from falling is anchored on the edge of the top surface of the curb stone of the sidewalk only through the embedded bolts at the four corners of the base plate, because the size of the edge of the top surface of the curb stone of the sidewalk is very limited, the vertical anchoring bolt embedded in the edge of the top surface of the curb stone is difficult to have good anchoring performance because the thickness of a concrete protective layer on the outer side of the vertical anchoring bolt is small, the base plate anchoring bolt embedded in the edge of the top surface of the curb stone bears the tensile force under the action of bearing or transmitting the transverse horizontal force by the railing, the base plate edge anchoring bolt with the originally poor anchoring performance is easy to be pulled out or cut off to fail under the action of the tensile force, and the upright post is difficult to play a role of preventing the automobile from climbing over the sidewalk;
the resistance vertical surface handrail is equivalent to heightening the vertical surface of the step of the existing sidewalk in the structural form, so that the height that an automobile can not climb up is achieved; the hollow circular cross-section railings of conventional fabricated guardrails are significantly less capable of resisting automobile climbing and resisting transverse horizontal force.
Compared with the existing assembled guardrail, the guardrail well solves the problem of preventing an automobile from climbing over a sidewalk and falling from the aspects of the structure of the guardrail and the anchoring seat and the anchoring mechanical principle of the guardrail and the curb stones of the sidewalk; and overcome and add concrete crash barrier and can obviously increase the bridge heavy burden on pavement edge curb, made the pavement use width obviously reduce, construction influences great a great deal of problem to bridge normal use.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic longitudinal cross-sectional structure of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic cross-sectional view of an anchor seat;
FIG. 5 is a view taken along direction C of FIG. 4;
FIG. 6 is a schematic view of an inverted U-shaped guard rail body;
FIG. 7 is a schematic cross-sectional view of FIG. 6;
FIG. 8 is a schematic view of an H-shaped guard rail body;
FIG. 9 is a schematic cross-sectional view of FIG. 8;
fig. 10 is a schematic view of a C-shaped guard rail body;
fig. 11 is a schematic cross-sectional view of fig. 10.
Detailed Description
Fig. 1 is a schematic longitudinal sectional structure of the present invention, fig. 2 is a sectional view taken along a-a in fig. 1, fig. 3 is a sectional view taken along B-B in fig. 1, fig. 4 is a schematic cross-sectional view of an anchor seat, and fig. 5 is a schematic cross-sectional view taken along C in fig. 4: the assembled bridge sidewalk car-blocking and overturning anti-collision guardrail comprises a guardrail main body along the direction of a road, wherein the guardrail main body is arranged on a curb through a plurality of anchoring seats arranged in parallel along the direction of the road, each anchoring seat comprises a vertical piece, and the vertical piece is anchored on the vertical face of the curb through a horizontal anchor bolt 7 implanted into the curb; the horizontal anchor bolt can adopt a bolt with a set thickness commonly used in construction, and a vertical part is implanted and fixed in the later period; after the anchoring seat is anchored on the curb, the protective guard main body is fixedly connected to the anchoring seat so as to be installed on the curb, and when the protective guard main body (and the anchoring seat) is impacted, the impact force forms a pulling force on the vertical part, so that a shearing force of an anchor bolt is converted, and the stress relation is improved; as shown in the figure, a curb 8 is arranged between the sidewalk 11 and the roadway, and the roadway pavement 9 on the bridge 10 is paved.
In this embodiment, the guard rail main body includes a blocking plate 4 along the roadway direction, where the blocking plate 4 is substantially vertically located on the upper portion of the vertical surface of the curb 8, and the substantially vertical refers to being approximately vertical, and may be strictly vertically arranged, or may have a smaller inclination angle, for example, the upper portion is slightly inclined toward the roadway direction, and both are substantially vertical according to the present invention; the vertical group partitions 4 are set at a suitable height and, in combination with anchoring seats that improve the stress relationship, ensure an increase in resistance and the impossibility of the vehicle to roll over in the event of a vehicle impact.
In the embodiment, the vertical part is a front anchoring resistance plate 1, the front anchoring resistance plate 1 is attached to the vertical face of the curb 8 and anchored to the vertical face of the curb through a horizontal anchor bolt 7, and the assembly is convenient; the plate-shaped structure has the characteristics of strong structural integrity and attractive appearance of the main body of the connecting protective guard; as shown in the figure, structurally, the barrier plate 4 is fixedly connected (welded or bolted) to the front anchoring resistance plate 1, and has strong integrity and convenient assembly.
In the embodiment, the anchoring seat further comprises a horizontal anchoring steel plate 12 serving as a base plate, the horizontal anchoring steel plate 12 is attached to the upper surface of the curb and anchored to the upper surface of the curb through a vertical anchor bolt, the end part of the horizontal anchoring steel plate is fixedly connected with the front anchoring resistance plate, the horizontal anchoring steel plate is generally fixedly connected in a welding mode, and the overall consistency is high; from the structural stress, the horizontal anchoring steel plate can be acted by a horizontal force when the front anchoring resistance plate 1 is impacted to form a forward force, and the vertical anchor bolt can form a horizontal shearing force at the moment, so that the tensile force is converted into a shearing force, and the stress effect is improved; the setting of horizontal anchor steel sheet has guaranteed the harmony of anchor seat wholeness and atress, can bear great impact force.
In this embodiment, the front anchoring resistance plate 1 is provided with a supporting and anchoring back plate 2, the supporting and anchoring back plate 2 is fixedly connected to a set position on the back of the front anchoring resistance plate 1 for supporting the front anchoring resistance plate 1, and the lower end part of the supporting and anchoring back plate is fixedly connected to the horizontal anchoring steel plate 12;
the protective guard main body further comprises a blocking back plate 5, the blocking back plate 5 is fixedly connected to a set position on the back of the blocking plate 4 and used for supporting the blocking plate 4, and the lower end of the blocking back plate 5 extends downwards;
two ends of the blocking plate 4 are respectively and fixedly connected with the adjacent front anchoring resistance plate 1, and two ends of the blocking back plate 5 are respectively and fixedly connected with the adjacent supporting and anchoring back plate 2;
in fact, the shape between the front anchoring resistance plate 1 and the supporting anchoring back plate 2 and between the barrier back plate 5 and the barrier plate 4 can be set to form a support, which is not described in detail herein.
In this embodiment, the upper end of the supporting and anchoring back plate 2 is fixedly connected to a set position at the back of the front anchoring resistance plate for supporting the front anchoring resistance plate 1, and the lower end extends backwards and obliquely downwards and is fixedly connected to the horizontal anchoring steel plate 12; the upper end of the blocking back plate is fixedly connected to a set position on the back of the blocking plate and used for supporting the front anchoring resistance plate, and the lower end of the blocking back plate extends towards the rear oblique lower side; the supporting of the supporting anchoring back plate 2 further enhances the integral stress effect of the anchoring seat, the supporting anchoring back plate 2 which is inclined when impacted is matched with the front anchoring resistance plate 1 to improve the impact bearing capacity, the force is transmitted to the horizontal anchoring steel plate 12, and the distribution of the impact force is integrally coordinated.
In this embodiment, the upper end of the supporting and anchoring back plate 2 is fixedly connected to the top end of the front anchoring resistance plate 1 or the front anchoring resistance plate 1 is directly bent and formed to form an approximate inverted U-shaped structure with a cross section having a smooth transition top (the inverted U-shaped structure is an approximate inverted U-shaped structure, that is, the front anchoring resistance plate is vertically arranged as one side of the inverted U-shaped structure, and the lower end of the supporting and anchoring back plate extends backward and obliquely below as the other side of the inverted U-shaped structure); the upper end of the blocking back plate is fixedly connected to the top end of the blocking plate or is directly bent and formed by the front anchoring resistance plate, and an approximate inverted U-shaped structure with a smooth transition cross section at the top is formed together (the inverted U-shaped structure is an approximate inverted U-shaped structure, namely the blocking plate 4 is vertically arranged, and the lower end of the blocking back plate 5 extends backwards and obliquely downwards); as shown in the figures, in the structure, the cross-sectional shape of the structure composed of the blocking back plate and the blocking plate is consistent with the cross-sectional shape of the structure composed of the supporting anchoring back plate and the front anchoring resistance plate, so that the fixed connection is convenient to form, namely, the top end of the front anchoring resistance plate and the supporting anchoring back plate jointly form an approximately inverted U-shaped structure with a cross section being in smooth transition at the top, and the shape and the size of the approximately inverted U-shaped structure are required to be matched with the shape and the size of the embedded end part of the selected protection railing, and no further description is given here.
The following structure can be adopted when in use: the cross section of the structure formed by the blocking back plate and the blocking plate can be in an H shape as shown in fig. 8 and 9 or a C-shaped plate structure (the rectangular opening is a C-shaped plate) as shown in fig. 10 and 11, the H-shaped plate and the C-shaped plate have the characteristic of simple forming, and the blocking back plate and the blocking plate also have formed sectional materials and are convenient to use; of course, the cross-sectional shape of the structure composed of the anchor back plate and the front anchor resistance plate should be basically consistent, and only the front anchor resistance plate needs to extend downwards to be anchored on the vertical surface of the curb;
the cross section of the structure formed by the blocking back plate and the blocking plate mainly has approximately inverted U-shaped, H-shaped and C-shaped (the structure with a rectangular opening is arranged at the back side), the front vertical surface is a group partition plate with a vertical plane, the railing structure has higher rigidity for resisting the action of horizontal force, and the cross section type is selected preferentially according to the stress requirement and different manufacturing and construction conditions.
The guardrail with the inverted U-shaped and C-shaped cross sections is provided with the blocking cross support plates (H-shaped barriers can be provided as required) at proper intervals along the length direction of the guardrail so as to enhance the structural rigidity of the guardrail resisting the action of the horizontal force.
If the H-shaped cross section is adopted, the blocking back plate 5 'is a back wing plate with an H-shaped structure, the blocking plate 4' is a front wing plate, and the H-shaped structure is suitable for arranging a capping thin-layer plate 14 at the top part, so that the appearance and the maintenance are facilitated.
If a C-shaped section is adopted, the blocking back plate 5 ' is of a C-shaped structure and is bent towards the rear side, the blocking plate 4 ' is one side of an integral plate of an open rectangular structure, a blocking cross support plate 6 ' is further arranged inside the C-shaped plate structure, and a sealing thin-layer plate 15 is arranged on the back of the C-shaped plate, so that the appearance and the maintenance are facilitated; the C-shaped plate is a rectangular opening plate shown in the figures and is not described in detail herein.
In this embodiment, the installation reference of the blocking plate 4 is substantially flush with the vertical surface of the kerbstone 8, and a blocking cross support plate or a blocking cross support rib is fixedly connected between the blocking plate 4 and the blocking back plate 5, in this embodiment, the blocking cross support plate 6 is adopted, and the shape of the blocking cross support plate 6 and the cross section shape (such as the aforementioned inverted U shape) of the structure formed by the blocking back plate 5 and the blocking plate 4 are fixed by welding all edges; if the blocking plate and the blocking back plate are formed into an H shape or a C shape, the blocking cross plate is adapted to the blocking back plate in shape, and the details are not repeated herein.
In this embodiment, an anchoring cross support plate or an anchoring cross support rib is arranged between the front anchoring resistance plate 1 and the anchoring back plate 2, in this embodiment, the anchoring cross support plate 3 is adopted, and the shape of the anchoring cross support plate 3 and the cross section shape (such as the aforementioned inverted U-shape) of the structure formed by the front anchoring resistance plate and the anchoring back plate are fixed by adopting a mode of welding all edges; if the anchoring resistance plate and the anchoring back plate form an H shape or a C shape, the shape of the anchoring cross bracing plate is adapted to the anchoring resistance plate, and the description is omitted.
In the embodiment, the vertical anchor bolt 13 is fixed at the rear side of the anchor backboard 2, so that the assembly is convenient, and the stress effect is good; the horizontal anchor bolts 13 and the vertical anchor bolts are distributed and arranged in a plurality according to the requirement, and are not described in detail herein.
The rear side and the back side of the invention both refer to the side which is transversely far away from or departs from the roadway and faces the side of the bridge (or the sidewalk).
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (3)
1. The utility model provides an assembled bridge pavement car stopping and overturning anticollision barrier which characterized in that: the guardrail comprises a guardrail main body along the direction of a road, wherein the guardrail main body is arranged on a curb through a plurality of anchoring seats arranged in parallel along the direction of the road, each anchoring seat comprises a vertical piece, and the vertical piece is anchored on the vertical face of the curb through a horizontal anchor bolt implanted into the curb; the vertical part is a front anchoring resistance plate which is attached to the vertical face of the curb and anchored to the vertical face of the curb through a horizontal anchor bolt; the anchoring seat further comprises a horizontal anchoring steel plate serving as a base plate, the horizontal anchoring steel plate is attached to the upper surface of the curb stone and anchored to the upper surface of the curb stone through a vertical anchor bolt, the end part of the horizontal anchoring steel plate is fixedly connected with the front anchoring resistance plate, the guard rail main body comprises a blocking plate along the road direction, and the blocking plate is vertically positioned on the upper part of the vertical face of the curb stone; the front anchoring resistance plate is provided with a supporting and anchoring back plate, and the supporting and anchoring back plate is fixedly connected to a set position at the back of the front anchoring resistance plate and is used for supporting the front anchoring resistance plate;
the protective guard main body further comprises a blocking back plate, and the blocking back plate is fixedly connected to a set position at the back of the blocking plate and used for supporting the blocking plate;
two ends of the blocking plate are respectively and fixedly connected with the adjacent front anchoring resistance plate, and two ends of the blocking back plate are respectively and fixedly connected with the adjacent supporting and anchoring back plate;
the upper end of the supporting and anchoring back plate is fixedly connected to a set position at the back of the front anchoring resistance plate for supporting the front anchoring resistance plate, and the lower end of the supporting and anchoring back plate extends backwards and obliquely downwards and is fixedly connected to the horizontal anchoring steel plate; the upper end of the blocking back plate is fixedly connected to a set position on the back of the blocking plate and used for supporting the front anchoring resistance plate, and the lower end of the blocking back plate extends towards the rear oblique lower side; the installation reference of the blocking plate is flush with the vertical face of the kerbstone, and a blocking cross support plate or a blocking cross support rib is fixedly connected between the blocking plate and the blocking back plate; and an anchoring cross support plate or an anchoring cross support rib is fixedly connected between the front anchoring resistance plate and the anchoring back plate.
2. The assembled bridge sidewalk car-blocking and overturning anti-collision guardrail of claim 1, wherein: the cross section of the structure formed by the blocking plate and the blocking back plate is of an inverted U-shaped, H-shaped or C-shaped plate structure, and the cross section of the structure formed by the front anchoring resistance plate and the supporting anchoring back plate is also of an inverted U-shaped, H-shaped or C-shaped plate structure matched with the cross section of the structure formed by the blocking plate and the blocking back plate.
3. The assembled bridge sidewalk car-blocking and overturning anti-collision guardrail of claim 1, wherein: the upper end of the support anchoring back plate is fixedly connected to the top end of the front anchoring resistance plate or the front anchoring resistance plate is directly bent and formed to form an inverted U-shaped structure with a cross section in smooth transition at the top; the upper end of the blocking back plate is fixedly connected to the top end of the blocking plate or is directly bent and formed by the front anchoring resistance plate and forms an inverted U-shaped structure with a cross section in smooth transition at the top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910221246.4A CN109898412B (en) | 2019-03-22 | 2019-03-22 | Assembled bridge sidewalk car-blocking and crossing anti-collision guardrail |
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| CN201910221246.4A CN109898412B (en) | 2019-03-22 | 2019-03-22 | Assembled bridge sidewalk car-blocking and crossing anti-collision guardrail |
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| CN109898412B true CN109898412B (en) | 2021-11-26 |
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| DE10124395A1 (en) * | 2001-05-18 | 2002-11-21 | Hueppe Hans Otto | Boundary defining device for parking spaces, foot paths, etc. consists of base plate fastened to a roadway, with slide-in and holder profile for hollow boundary rail with anchoring profile |
| CN2542718Y (en) * | 2002-04-17 | 2003-04-02 | 林泽明 | Crash barrier for use in centre of road and on road side |
| CN2545252Y (en) * | 2002-06-28 | 2003-04-16 | 王双其 | Collison fence for bridge |
| KR100473477B1 (en) * | 2004-11-29 | 2005-03-14 | 강명석 | Bridge guirail reinforcement method of non-dismantle for bridge curbstone |
| KR100843306B1 (en) * | 2007-06-26 | 2008-07-03 | 주식회사 로드맥스 엔지니어링 | Apparatus for fixing pedestrian bridge in side of bridge |
| CN100494578C (en) * | 2007-10-19 | 2009-06-03 | 重庆交通大学 | Crash-proof border stone and sidewalk plate structure and constructing method |
| CN100535249C (en) * | 2007-10-19 | 2009-09-02 | 重庆交通大学 | L-type reinforced concrete enhanced border store structure and construction method thereof |
| CN201276672Y (en) * | 2008-10-13 | 2009-07-22 | 李才德 | Safety protection single-tube armrest straight seat |
| CN201276674Y (en) * | 2008-10-13 | 2009-07-22 | 李才德 | Safety protection single-tube armrest arc-shaped seat |
| CN202148503U (en) * | 2011-05-05 | 2012-02-22 | 北京道从交通科技有限公司 | Saddle type combined guardrail structure |
| CN202925465U (en) * | 2011-12-26 | 2013-05-08 | 上海市政交通设计研究院有限公司 | Anti-collision bridge guardrail capable of preventing container from overturning |
| CN106917348A (en) * | 2015-12-26 | 2017-07-04 | 王冠红 | Road and bridge guard rail support plinth and operating method |
| CN107130543A (en) * | 2016-02-29 | 2017-09-05 | 贵州华佑金属制品有限公司 | Road guard-rail |
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- 2019-03-22 CN CN201910221246.4A patent/CN109898412B/en active Active
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