Lightweight bridge guardrail structure

Abstract

A light-weight bridge guardrail structure comprises a stand column and a base, the stand column comprises a front wing plate, a rear wing plate, a top plate, a web plate, a flange plate, an angle steel rib plate and side ribs, the stand column is made of 700L steel, and the two faces of the angle steel rib plate are welded to the front side included angle positions of the front wing plate and the flange plate respectively. The angle steel rib plate, the front wing plate and the flange plate form a double-layer welded steel plate structure, the side ribs are integrally bent angle steel, the side ribs are fixed in a groove formed by the front wing plate, the rear wing plate and the web plate, meanwhile, the side ribs and the flange plate form a closed cavity, the rear wing plate and the top plate are in an integrally bent angle steel shape, and the side ribs are fixed in the groove. The stand columns are arranged on the base at intervals, the bottoms of the stand columns are fixed through anchor bolts, the anchor bolts are placed in the base through hand holes, and the front wing plate is in a wave shape or a corrugated shape. The protection level reaches the SS level, the excellent functions of preventing the vehicle from rolling and guiding are achieved, and on-site installation and construction are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of traffic safety facilities, specifically, relate to a light weight bridge guardrail structure. BACKGROUND

[0002] The bridge construction of our country develops rapidly, and the bridge operation safety is cared more and more by the people.

[0003] The bridge is generally high in accident severity, such as the vicious accident of the driver falling into the bridge after hitting the guardrail, so the bridge guardrail is designed to be high in grade, generally not less than the SS grade required by the standard, and the design protection energy is 520KJ, which has sufficient safety margin on the basis of ensuring normal operation safety.

[0004] Because of the above requirements, the design institute will be particularly conservative when designing the above guardrail, such as increasing the unit weight of the bridge guardrail and increasing the cross-sectional shape, but this also causes a great burden on the permanent load of the bridge body, and the bearing capacity of the bridge body is limited according to the design value. In recent years, there have been safety accidents of bridge precast slab rollover, and the self-weight of the bridge guardrail will inevitably affect the bearing capacity of the live load of the bridge body; in addition, the state vigorously promotes the concept of green development and implements the "double carbon" emission reduction policy, and the unlimited widening of the bridge guardrail is a serious waste of resources, and we should solve the problem from the structure and material.

[0005] In summary, the inventor proposes a light weight bridge guardrail structure, which optimizes the thickness and structure of the component, and uses high-strength steel material instead of plain carbon steel, so that the bridge guardrail meets the safety protection effect on the basis of weight reduction. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a light weight bridge guardrail structure.

[0007] To achieve the above technical purpose, the technical scheme of the utility model is as follows:

[0008] A light weight bridge guardrail structure, comprising a stand column and a base, the stand column comprises a front wing plate, a rear wing plate, a top plate, a web plate, a flange plate, an angle steel rib plate and a side rib, the materials of the stand column are all 700L grade steel, two surfaces of the angle steel rib plate are respectively welded at the front side included angle positions of the front wing plate and the flange plate, the angle steel rib plate forms a double-layer welded steel plate structure with the front wing plate and the flange plate respectively, the side rib is an angle steel integrally bent, and the side rib is fixed in the groove formed by the front wing plate, the rear wing plate and the web plate, and forms a closed cavity with the flange plate, the rear wing plate and the top plate are integrally bent into the shape of angle steel, the stand columns are arranged at intervals on the base, and the bottom is fixed by anchor bolts, the anchor bolts are put into the base through hand holes.

[0009] Further, the base is a closed cavity formed by welding a steel plate, and the anchor bolts are bolted and fixed through the flange plate and the steel structure.

[0010] Further, the base bottom is connected with the bridge plate by welding or pre-buried mode, and when the pre-buried mode is adopted, the base is embedded and the anchor bars are inserted into the openings.

[0011] Further, the included angle of the web top matches the angle steel fold angle shape of the rear wing plate and the top plate.

[0012] Further, the front wing plate, the rear wing plate and the web are welded and assembled into an H-shaped cross-sectional shape.

[0013] Further, the light-weight bridge guardrail structure further comprises a cross beam and a connecting channel steel, the front wing plate is welded with the connecting channel steel, the cross beam is inserted into the opening of the connecting channel steel and is fixed by bolting, and the cross beam and the connecting channel steel are provided with three rows in the vertical height direction of the stand column.

[0014] Further, the hand hole is provided with a hand hole sealing plate, and the hand hole sealing plate is spot-welded in the back gap of the base.

[0015] Further, when the front wing plate is in a wave shape, the cross beam is a circular pipe, the connecting channel steel is an arc shape, the flange is a circular shape, and the angle steel rib plate is an arc top, and when the front wing plate is in a corrugated shape or a straight plate shape, the cross beam is a rectangular pipe, and the flange plate is a square shape.

[0016] After the above technical scheme is adopted, the utility model has the following beneficial effects:

[0017] (1) The protection level reaches SS level, and the protection energy is not less than 520kJ;

[0018] (2) It has superior vehicle side leaning and guiding functions;

[0019] (3) It is convenient for on-site installation and construction after reasonable design. DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0021] Figure 1 It is the elevation view of the embodiment 1 of the utility model;

[0022] Figure 2is the section view of the embodiment 1 of the utility model;

[0023] Figure 3 is the perspective view of the embodiment 1 of the utility model;

[0024] Figure 4 is the section view of the embodiment 1 of the utility model;

[0025] Figure 5 is the elevation view of the embodiment 2 of the utility model;

[0026] Figure 6 is the section view of the embodiment 2 of the utility model;

[0027] Figure 7 is the elevation view of the embodiment 2 of the utility model;

[0028] Figure 8 is the section view of the embodiment 2 of the utility model.

[0029] The figure is marked as follows:

[0030] 1. column; 2. hand hole; 3. anchoring bar; 4. base; 5. anchor bolt; 6. front wing plate; 7. rear wing plate; 8. top plate; 9. web plate; 10. flange plate; 11. angle steel rib plate; 12. side rib; 13. bridge plate; 14. connecting channel steel; 15. hand hole sealing plate; 16. crossbeam. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art belong to the scope of protection of the utility model.

[0032] Figures 1-4As shown, the utility model discloses an example drawing of embodiment 1. Including stand 1, base 4. Guardrail design protection ability is SS level, and the top surface of the uppermost crossbeam of guardrail is 1.5m from the bridge deck height. The stand 1 includes front wing plate 6, rear wing plate 7, top plate 8, web plate 9, flange plate 10, angle steel rib plate 11, side rib 12, and the material is all 700L brand steel, the two faces of angle steel rib plate 11 are respectively welded in the front side angle position of front wing plate 6 and flange plate 10, and angle steel rib plate 11 forms double-layer welded steel plate structure with front wing plate 6 and flange plate 10 respectively, and side rib 12 is the angle steel that is bent as a whole and is fixed in the recess formed by front wing plate 6, rear wing plate 7 and web plate 9, simultaneously with flange plate 10 to form the closed cavity, the rear wing plate 7 and top plate 8 are the angle steel shape that is bent as a whole, the stand 1 is spaced apart and arranged on base 4, and the bottom is fixed through anchor bolt 5, anchor bolt 5 is put into base 4 through hand hole 2, when the front wing plate 6 is wave-shaped, the crossbeam 16 is a circular tube, the connecting channel steel 14 is arc-shaped, the flange plate 10 is circular, and the angle steel rib plate 11 is arc-shaped top.

[0033] The base 4 is a closed cavity formed by welding steel plates, and the anchor bolt 5 is bolted and fixed with the steel structure through the flange plate 10.

[0034] The base 4 is connected with the bridge plate 13 through welding at the bottom.

[0035] The top corner of the web plate 9 matches the angle steel corner shape of the rear wing plate 7 and the top plate 8, and the front wing plate 6, the rear wing plate 7 and the web plate 9 are welded and assembled into an H-shaped cross-sectional shape.

[0036] The light-weight bridge guardrail structure further includes a crossbeam 16 and a connecting channel steel 14, the front wing plate 6 is welded with the connecting channel steel 14, the crossbeam 16 is inserted into the opening of the connecting channel steel 14 and is fixed by bolting, and the crossbeam 16 and the connecting channel steel 14 are provided with corresponding three rows in the vertical height direction of the stand 1.

[0037] The hand hole 2 is provided with a hand hole sealing plate 15, and the hand hole sealing plate 15 is spot welded in the back gap of the base 4.

[0038] Figure 5 、 6As shown, the utility model discloses an embodiment 2 example drawing, including stand 1, base 4. Guardrail design protection ability is SS level, and the top surface of the uppermost crossbeam of guardrail is 1.5m from the bridge deck height. The stand 1 includes front wing plate 6, rear wing plate 7, top plate 8, web plate 9, flange plate 10, angle steel rib plate 11, side rib 12, and the material is all 700L brand steel, and the two faces of angle steel rib plate 11 are respectively welded in the front side angle position of front wing plate 6 and flange plate 10, and angle steel rib plate 11 forms double-layer welded steel plate structure with front wing plate 6 and flange plate 10 respectively, and side rib 12 is the angle steel that is bent as a whole and is fixed in the recess formed by front wing plate 6, rear wing plate 7, web plate 9, and simultaneously forms the closed cavity with flange plate 10, the rear wing plate 7 and top plate 8 are the angle steel shape that is bent as a whole, the stand 1 is spaced apart and arranged on base 4, and the bottom is fixed through anchor bolt 5, anchor bolt 5 is put into base 4 through hand hole 2, and front wing plate 6 is corrugated shape, the crossbeam 16 is rectangular tube, and the flange plate 10 is square.

[0039] The base 4 is a closed cavity formed by welding steel plates, and the anchor bolt 5 is bolted and fixed through the flange plate 10 and the steel structure, the base 4 is provided with a hand hole 2 at the back for inserting and tightening the anchor bolt 5.

[0040] The base 4 is connected to the bridge plate 13 through a pre-buried mode, and in the pre-buried mode, the base 4 is embedded in the opening and the anchor bar 3 is inserted.

[0041] The top corner of the web plate 9 matches the angle steel corner shape of the rear wing plate 7 and the top plate 8, and the front wing plate 6, the rear wing plate 7 and the web plate 9 are welded and assembled into an H-shaped cross-sectional shape.

[0042] The lightweight bridge guardrail structure further includes a crossbeam 16 and a connecting channel steel 14, the front wing plate 6 is welded with the connecting channel steel 14, the crossbeam 16 is inserted into the opening of the connecting channel steel 14 and is fixed by bolting, and the crossbeam 16 and the connecting channel steel 14 are arranged in three rows in the vertical height direction of the stand 1.

[0043] The hand hole 2 is provided with a hand hole sealing plate 15, and the hand hole sealing plate 15 is spot welded in the back gap of the base 4.

[0044] Figure 7 、 8As shown, the utility model discloses an example drawing of embodiment 3. Including stand 1, base 4. Guardrail design protection ability is SS level, and the top surface of the uppermost crossbeam of guardrail is 1.5m from the bridge deck height. The stand 1 includes front wing plate 6, rear wing plate 7, top plate 8, web plate 9, flange plate 10, angle steel rib plate 11, side rib 12, and the material is all 700L brand steel, and the two faces of angle steel rib plate 11 are welded in the front side angle position of front wing plate 6 and flange plate 10, and angle steel rib plate 11 forms double-layer welded steel plate structure with front wing plate 6 and flange plate 10 respectively, and side rib 12 is the angle steel that is bent as a whole and is fixed in the recess formed by front wing plate 6, rear wing plate 7 and web plate 9, and simultaneously forms the closed cavity with flange plate 10, the rear wing plate 7 and top plate 8 are the angle steel shape that is bent as a whole, the stand 1 is spaced apart and arranged on base 4, and the bottom is fixed through anchor bolt 5, anchor bolt 5 is put into base 4 through hand hole 2, the front wing plate 6 is straight plate, and the crossbeam 16 is circular tube, and the flange plate 10 is square.

[0045] The base 4 is a closed cavity formed by welding steel plates, and the anchor bolt 5 is bolted and fixed through the flange plate 10 and the steel structure.

[0046] The base 4 is connected with the bridge plate 13 through welding at the bottom.

[0047] The top corner of the web plate 9 matches the angle steel corner shape of the rear wing plate 7 and the top plate 8, and the front wing plate 6, the rear wing plate 7 and the web plate 9 are welded and assembled into an H-shaped cross-sectional shape.

[0048] The light-weight bridge guardrail structure further includes a crossbeam 16 and a connecting channel steel 14, the front wing plate 6 is welded with the connecting channel steel 14, the crossbeam 16 is inserted into the opening of the connecting channel steel 14 and is fixed by bolting, and the crossbeam 16 and the connecting channel steel 14 are arranged in three rows in the vertical height direction of the stand 1.

[0049] The hand hole 2 is provided with a hand hole sealing plate 15, and the hand hole sealing plate 15 is spot welded in the back gap of the base 4.

[0050] The above only is the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A lightweight bridge guardrail structure comprising a post (1), a base (4), characterized in that: The column (1) comprises a front wing plate (6), a rear wing plate (7), a top plate (8), a web plate (9), a flange plate (10), an angle steel rib plate (11), and a side rib (12), all of which are made of 700L grade steel; the two surfaces of the angle steel rib plate (11) are respectively welded at the front side included angle positions of the front wing plate (6) and the flange plate (10); the angle steel rib plate (11) forms a double-layer welded steel plate structure with the front wing plate (6) and the flange plate (10); the side rib (12) is an angle steel formed by integral bending, and is fixed in the groove formed by the front wing plate (6), the rear wing plate (7), and the web plate (9), and forms a closed cavity with the flange plate (10); the rear wing plate (7) and the top plate (8) are in the shape of an integral bent angle steel; the column (1) is arranged on the base (4) in a spaced manner, and the bottom is fixed by anchor bolts (5); the anchor bolts (5) are put into the base (4) through hand holes (2); and the front wing plate (6) is in a wave shape or a corrugated shape.

2. The lightweight bridge guardrail structure according to claim 1, characterized in that: The base (4) is a closed cavity formed by welding steel plates; the anchor bolts (5) are bolted and fixed with the steel structure through the flange plate (10); and the back of the base (4) is provided with hand holes (2) for inserting and tightening the anchor bolts (5).

3. The lightweight bridge guardrail structure according to claim 1, characterized in that: The base (4) is connected with a bridge plate (13) by welding or pre-buried mode; when the pre-buried mode is adopted, the base (4) is embedded in the part of the opening and the anchor bars (3) are inserted.

4. The lightweight bridge guardrail structure according to claim 1, characterized in that: The top included angle of the web plate (9) matches the angle steel bent angle shape of the rear wing plate (7) and the top plate (8).

5. The lightweight bridge guardrail structure according to claim 1, characterized in that: The front wing plate (6), the rear wing plate (7), and the web plate (9) are welded and assembled into an H-shaped cross-sectional shape.

6. The lightweight bridge guardrail structure according to claim 1, characterized in that: The lightweight bridge guardrail structure further comprises a cross beam (16) and a connecting channel steel (14); the front wing plate (6) is welded with the connecting channel steel (14); the cross beam (16) is inserted into the opening of the connecting channel steel (14) and is fixed by bolting; and the cross beam (16) and the connecting channel steel (14) are arranged in three rows in the vertical height direction of the column (1).

7. The lightweight bridge guardrail structure according to claim 2, characterized in that: The hand hole (2) is provided with a hand hole sealing plate (15) which is spot-welded in the back gap of the base (4).

8. The lightweight bridge guardrail structure according to claim 6, characterized in that: When the front wing plate (6) is in a wave shape, the cross beam (16) is a circular pipe, the connecting channel steel (14) is arc-shaped, the flange plate (10) is circular, and the angle steel rib plate (11) is arc-shaped; when the front wing plate (6) is in a corrugated shape or a straight plate shape, the cross beam (16) is a rectangular pipe, and the flange plate (10) is square.

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