Pedestrian guardrail and bridge applying same

Abstract

The utility model discloses a pedestrian guardrail and a bridge applying the same, the pedestrian guardrail comprises a plurality of stand columns arranged at intervals along a first direction and first cross rods arranged between two adjacent stand columns, and two ends of each first cross rod are respectively connected with the stand columns through flexible connecting components; the flexible connecting assembly comprises a clamping component and a flexible sleeve. The flexible sleeve is arranged between the end part of the first cross rod and the clamping component; the clamping component comprises a fixed seat and a movable seat; the fixed seat is fixedly connected with the stand column, the movable seat is detachably connected with the fixed seat, and a clamping space used for fixing the flexible sleeve and the first cross rod is formed between the movable seat and the fixed seat. The pedestrian guardrail can adapt to stretching and retracting of a large-span suspension bridge, the pedestrian guardrail is prevented from being damaged due to stress, the sense of safety of pedestrians can be improved, and corrosion can be reduced.

Description

Technical Field

[0001] The utility model relates to a bridge, in particular to a pedestrian guardrail and a bridge using the same. Background Art

[0002] As my country's expressway network continues to expand, bridge structures are developing toward larger, lighter, and more flexible structures, and automobiles are moving toward higher speeds and heavier loads. Long-span suspension bridges, with spans exceeding 600 meters, have seen rapid growth in recent years due to their superior spanning capacity and elegant design. These structures are highly flexible and have long natural vibration periods, but they experience greater expansion and contraction than other bridge types, reaching approximately ±1mm per meter of span.

[0003] Compared with traditional pedestrian guardrails, suspension bridge pedestrian guardrails have the following characteristics: Suspension bridge pedestrian guardrails must be retractable, otherwise the guardrails will be damaged by stress, unlike traditional pedestrian guardrails that use rigid connections. The telescopic structure of traditional pedestrian guardrails uses a "large tube inside a small tube" structure (i.e., the large tube and the small tube are nested inside and outside), which has the following disadvantages: (1) The "large tube inside the small tube" structure makes the guardrail prone to slight shaking, making pedestrians feel unsafe; (2) There are narrow gaps at the connection, which makes it difficult for rainwater to dry after entering, and over time, it will cause the stainless steel coating to fail. Utility Model Content

[0004] In view of this, the purpose of the present invention is to provide a pedestrian guardrail and a bridge using the same, which can adapt to the expansion and contraction of a large-span suspension bridge, prevent the pedestrian guardrail from being damaged by force, enhance the sense of safety of pedestrians, and reduce the occurrence of rust.

[0005] A pedestrian guardrail in the present invention includes a plurality of columns arranged at intervals along a first direction and a first cross bar arranged between two adjacent columns, wherein both ends of the first cross bar are respectively connected to the columns through flexible connection components; the flexible connection component includes a clamping member and a flexible sleeve; the flexible sleeve is arranged between the end of the first cross bar and the clamping member; the clamping member includes a fixed seat and a movable seat; the fixed seat is fixedly connected to the column, the movable seat is detachably connected to the fixed seat, and a clamping space for fixing the flexible sleeve and the first cross bar is formed between the movable seat and the fixed seat.

[0006] Furthermore, the first cross bar is a square tube.

[0007] Furthermore, the flexible sleeve is a rubber sleeve that conforms to the outer surface of the square tube; the flexible sleeve is placed on the square tube and is clamped and fixed by the clamping member.

[0008] Furthermore, the fixed seat has a first opening facing inward, the movable seat has a second opening facing outward, the fixed seat is arranged on the outer side of the movable seat, and the first opening and the second opening are connected to form the clamping space.

[0009] Furthermore, the fixing seat includes a first outer plate, a first top plate, a first bottom plate, a first upper flange and a first lower flange; the outer side of the first top plate and the outer side of the first bottom plate are respectively connected to the upper and lower sides of the first outer plate, and the first top plate, the first outer plate and the first bottom plate enclose to form the first opening; the first upper flange is connected to the inner side of the first top plate and protrudes upward from the first top plate, and the first lower flange is connected to the inner side of the first bottom plate and protrudes downward from the first bottom plate.

[0010] Furthermore, the movable seat includes a second inner plate, a second top plate, a second bottom plate, a second upper flange and a second lower flange; the inner side of the second top plate and the inner side of the second bottom plate are respectively connected to the upper and lower sides of the second inner plate, and the second top plate, the second inner plate and the second bottom plate are combined to form the second opening; the second upper flange is connected to the outer side of the second top plate and protrudes upward from the second top plate, and the second lower flange is connected to the outer side of the second bottom plate and protrudes downward from the second bottom plate.

[0011] Furthermore, pre-welded nuts are provided on the outer sides of the first upper flange and the first lower flange, and bolt holes are provided on the first upper flange, the first lower flange, the second upper flange and the second lower flange; the first upper flange abuts against the second upper flange and the two are connected by bolts, and the first lower flange abuts against the second lower flange and the two are connected by bolts.

[0012] Furthermore, it also includes a second cross bar and a third cross bar arranged between two adjacent columns, and the first cross bar, the second cross bar and the third cross bar are arranged at intervals in the up and down directions; both ends of the second cross bar and the two ends of the third cross bar are respectively connected to the columns through the flexible connection components.

[0013] Furthermore, it also includes a rectangular frame-shaped plate arranged between two adjacent columns, the upper side of the rectangular frame-shaped plate is fixedly connected to the lower side of the second cross bar, and the lower side of the rectangular frame-shaped plate is fixedly connected to the upper side of the third cross bar. The rectangular frame-shaped plate can be used to install cables or glass.

[0014] A bridge in the utility model comprises the above-mentioned pedestrian guardrail.

[0015] The beneficial effects of the utility model are:

[0016] (1) The two ends of the first crossbar of the utility model are connected to the columns through flexible connection components. The first crossbar and the columns can adapt to the expansion and contraction of the long-span suspension bridge and prevent the pedestrian guardrail from being damaged by force.

[0017] (2) The flexible sleeve of the present invention is arranged between the end of the first cross bar and the clamping member. The flexible sleeve is compressed and deformed. On the one hand, it can prevent the first cross bar from shaking easily, thereby improving the sense of safety of pedestrians. On the other hand, the flexible sleeve fills the gap between the clamping member and the first cross bar, which can prevent rainwater from accumulating at the connection between the clamping member and the first cross bar and reduce the occurrence of rust.

[0018] (3) The first crossbar of the present invention is a square tube, which can prevent the first crossbar from rotating freely and prevent pedestrians from feeling unsafe.

[0019] (4) The fixing seat of the utility model has a first opening facing inward, which can have a pre-positioning function during installation. The first bottom plate of the fixing seat can provide support for the first crossbar, and the flexible sleeve can also prevent the first crossbar from sliding out. Therefore, workers do not need to hold it with their hands, reducing the labor intensity of workers. In addition, since the first opening of the fixing seat faces inward, workers also stand on the inner side of the pedestrian guardrail, which not only facilitates the installation of workers, but also prevents the first crossbar from falling under the bridge.

[0020] (5) In the present invention, since the pre-welded nuts are arranged on the outside, during installation, the bolts pass through the bolt holes from the inside to the outside and are threadedly connected with the pre-welded nuts. The workers also stand on the inside of the pedestrian guardrail, which makes it easier for the workers to observe the hole positions and perform operations, further facilitating installation for the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present utility model (a rectangular frame-shaped plate is used to install the cable);

[0023] Figure 2 This is a schematic diagram of the structure of the utility model (a rectangular frame-shaped plate is used for glass);

[0024] Figure 3 It is a cross-sectional schematic diagram of the connection between the first cross bar and the flexible connection assembly of the present invention.

[0025] The markings in the accompanying drawings are as follows: 1-column, 2-first cross bar, 3-flexible sleeve, 4-fixed seat, 401-first outer plate, 402-first top plate, 403-first bottom plate, 404-first upper flange, 405-first lower flange, 5-movable seat, 501-second inner plate, 502-second top plate, 503-second bottom plate, 504-second upper flange, 505-second lower flange, 6-pre-welded nut, 7-bolt, 8-second cross bar, 9-third cross bar, 10-rectangular frame plate, 11-cable, 12-glass, 13-bridge body. DETAILED DESCRIPTION

[0026] The technical solution of the present utility model is described in detail below with reference to the accompanying drawings and embodiments.

[0027] like Figure 1-Figure 3 As shown, a pedestrian guardrail in this embodiment includes a plurality of columns 1 arranged at intervals along a first direction and a first cross bar 2 arranged between two adjacent columns 1, and the two ends of the first cross bar 2 are respectively connected to the column 1 through a flexible connection component; the flexible connection component includes a clamping member and a flexible sleeve 3; the flexible sleeve 3 is arranged between the end of the first cross bar 2 and the clamping member; the clamping member includes a fixed seat 4 and a movable seat 5; the fixed seat 4 is fixedly connected to the column 1, and the movable seat 5 is detachably connected to the fixed seat 4, and a clamping space for fixing the flexible sleeve 3 and the first cross bar 2 is formed between the movable seat 5 and the fixed seat 4.

[0028] The pedestrian guardrail in this embodiment is applicable to bridges, particularly long-span suspension bridges, and can also be applied to roads or other infrastructure requiring pedestrian guardrails. When applied to bridges, the first direction refers to the length direction of the bridge body 13 of the bridge.

[0029] The bridge 13 of a long-span suspension bridge expands and contracts more than other bridge types, reaching approximately ±1 mm per meter (the span of the suspension bridge) along its length. If the bridge 13 of a long-span suspension bridge expands and contracts due to thermal expansion and contraction, the pedestrian guardrail would be unable to adapt to the expansion and contraction of the bridge 13 and could be damaged if the ends of the first crossbar 2 were welded to the columns 1.

[0030] In this embodiment, both ends of the first crossbar 2 are connected to the column 1 through flexible connection components. The first crossbar 2 and the column 1 can adapt to the expansion and contraction of the bridge body 13 of the long-span suspension bridge to prevent the pedestrian guardrail from being damaged by force.

[0031] In addition, since the flexible sleeve 3 is arranged between the end of the first cross bar 2 and the clamping member, the flexible sleeve 3 is compressed and deformed. On the one hand, it can prevent the first cross bar 2 from shaking easily, thereby improving the sense of safety of pedestrians. On the other hand, the flexible sleeve 3 fills the gap between the clamping member and the first cross bar 2, which can prevent rainwater from accumulating at the connection between the clamping member and the first cross bar 2, reducing the occurrence of rust.

[0032] In this embodiment, the first cross bar 2 is a square tube, which can prevent the first cross bar 2 from rotating freely and prevent pedestrians from feeling unsafe.

[0033] In this embodiment, the flexible sleeve 3 is a rubber sleeve that conforms to the outer surface of the square tube; the flexible sleeve 3 is placed outside the square tube and is clamped and fixed by the clamping member.

[0034] In this embodiment, the fixed seat 4 has a first opening facing inward, and the movable seat 5 has a second opening facing outward. The fixed seat 4 is disposed outside the movable seat 5, and the first opening and the second opening mate to form the clamping space. The inner side refers to the side of the bridge closer to the central axis, while the outer side refers to the side of the bridge farther from the central axis.

[0035] In this embodiment, the fixing seat 4 includes a first outer plate 401, a first top plate 402, a first bottom plate 403, a first upper flange 404 and a first lower flange 405; the outer side of the first top plate 402 and the outer side of the first bottom plate 403 are respectively connected to the upper and lower sides of the first outer plate 401, and the first top plate 402, the first outer plate 401 and the first bottom plate 403 are enclosed to form the first opening; the first upper flange 404 is connected to the inner side of the first top plate 402 and protrudes upward from the first top plate 402, and the first lower flange 405 is connected to the inner side of the first bottom plate 403 and protrudes downward from the first bottom plate 403.

[0036] In this embodiment, the movable seat 5 includes a second inner plate 501, a second top plate 502, a second bottom plate 503, a second upper flange 504 and a second lower flange 505; the inner side of the second top plate 502 and the inner side of the second bottom plate 503 are respectively connected to the upper and lower sides of the second inner plate 501, and the second top plate 502, the second inner plate 501 and the second bottom plate 503 are enclosed to form the second opening; the second upper flange 504 is connected to the outer side of the second top plate 502 and protrudes upward from the second top plate 502, and the second lower flange 505 is connected to the outer side of the second bottom plate 503 and protrudes downward from the second bottom plate 503.

[0037] In this embodiment, pre-welded nuts 6 are provided on the outer sides of the first upper flange 404 and the first lower flange 405, and holes for bolts 7 are provided on the first upper flange 404, the first lower flange 405, the second upper flange 504 and the second lower flange 505; the first upper flange 404 abuts against the second upper flange 504 and the two are connected by bolts 7, and the first lower flange 405 abuts against the second lower flange 505 and the two are connected by bolts 7.

[0038] In this embodiment, the pedestrian guardrail also includes a second cross bar 8 and a third cross bar 9 arranged between two adjacent columns 1, and the first cross bar 2, the second cross bar 8 and the third cross bar 9 are arranged at intervals in the up and down directions; both ends of the second cross bar 8 and the two ends of the third cross bar 9 are respectively connected to the column 1 through the flexible connection component.

[0039] In this embodiment, the pedestrian guardrail further includes a rectangular frame-shaped plate 10 disposed between two adjacent upright posts 1. The upper side of the rectangular frame-shaped plate 10 is fixedly connected to the lower side of the second crossbar 8, and the lower side of the rectangular frame-shaped plate 10 is fixedly connected to the upper side of the third crossbar. The rectangular frame-shaped plate 10 can be used to mount a cable 11 or glass 12. The rectangular frame-shaped plate 10 is not connected to the upright posts 1 and does not affect the displacement of the second crossbar 8 relative to the upright posts 1 or the displacement of the third crossbar 9 relative to the upright posts 1.

[0040] When installing a pedestrian guardrail, the following steps are involved:

[0041] S1. Install the column 1 on the bridge body 13. The fixing base 4 is welded to the column 1 before leaving the factory, or welded to the column 1 on site.

[0042] S2, installing the first crossbar 2; including two steps S201 and S202:

[0043] S201, the flexible sleeve 3 is placed on the end of the first crossbar 2, and then the two ends of the first crossbar 2 with the flexible sleeve 3 are respectively placed into the first opening to form a pre-position. At this time, since the first bottom plate 403 of the fixing seat 4 can provide support for the first crossbar 2, and the flexible sleeve 3 can also prevent the first crossbar 2 from sliding out, the workers do not need to hold it with their hands, reducing the labor intensity of the workers. In addition, since the first opening is fixed to the inside, the workers also stand on the inside of the pedestrian guardrail, which not only facilitates the installation of the workers, but also prevents the first crossbar 2 from falling under the bridge.

[0044] S202, docking the movable seat 5 with the fixed seat 4, and then passing the bolts 7 through the bolt 7 holes and threading them into the pre-welded nuts 6, so that the end of the first crossbar 2 with the flexible sleeve 3 is clamped and fixed by the movable seat 5 and the fixed seat 4; since the pre-welded nuts 6 are arranged on the outside, the bolts 7 pass through the bolt 7 holes from the inside to the outside and are threaded into the pre-welded nuts 6. The worker also stands on the inside of the pedestrian guardrail, which makes it easier for the worker to observe the hole position and perform operations, further facilitating the installation of the worker;

[0045] S3, installing the second cross bar 8 and the third cross bar 9;

[0046] The operation of installing the second crossbar 8 and the third crossbar 9 is similar to the operation of installing the first crossbar 2 in step S2, and will not be repeated here;

[0047] S4, installing the rectangular frame plate 10;

[0048] The upper side of the rectangular frame-shaped plate 10 is connected to the lower side of the second crossbar 8 by welding, and the lower side of the rectangular frame-shaped plate 10 is connected to the upper side of the third crossbar by welding;

[0049] S5, installing the cable 11 or glass 12 on the rectangular frame plate 10;

[0050] When the bridge in step S1 is a long-span suspension bridge with a span of more than 600 meters, generally only the cables 11 are installed on the rectangular frame-shaped plate 10;

[0051] When the bridge in step S1 is another bridge, either the cable 11 or the glass 12 can be installed on the rectangular frame plate 10. The pedestrian guardrail installed with the glass 12 is more beautiful and has a good visual effect.

[0052] A bridge in this embodiment applies the above-mentioned pedestrian guardrail.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pedestrian guardrail, characterized by: The invention comprises a plurality of columns (1) arranged at intervals along a first direction and a first cross bar (2) arranged between two adjacent columns (1), wherein both ends of the first cross bar (2) are connected to the columns (1) via flexible connection components; the flexible connection component comprises a clamping member and a flexible sleeve (3); the flexible sleeve (3) is arranged between the end of the first cross bar (2) and the clamping member; the clamping member comprises a fixed seat (4) and a movable seat (5); the fixed seat (4) is fixedly connected to the column (1), the movable seat (5) is detachably connected to the fixed seat (4), and a clamping space for fixing the flexible sleeve (3) and the first cross bar (2) is formed between the movable seat (5) and the fixed seat (4).

2. The pedestrian guardrail according to claim 1, characterized in that: The first cross bar (2) is a square tube.

3. The pedestrian guardrail according to claim 2, characterized in that: The flexible sleeve (3) is a rubber sleeve that conforms to the outer surface of the square tube; the flexible sleeve (3) is placed outside the square tube and is clamped and fixed by the clamping member.

4. The pedestrian guardrail according to claim 1, characterized in that: The fixed seat (4) has a first opening facing inward, and the movable seat (5) has a second opening facing outward. The fixed seat (4) is arranged on the outside of the movable seat (5), and the first opening and the second opening are connected to form the clamping space.

5. The pedestrian guardrail according to claim 4, characterized in that: The fixing seat (4) comprises a first outer plate (401), a first top plate (402), a first bottom plate (403), a first upper flange (404) and a first lower flange (405); the outer side of the first top plate (402) and the outer side of the first bottom plate (403) are respectively connected to the upper and lower sides of the first outer plate (401), and the first top plate (402), the first outer plate (401) and the first bottom plate (403) enclose to form the first opening; the first upper flange (404) is connected to the inner side of the first top plate (402) and protrudes upward from the first top plate (402), and the first lower flange (405) is connected to the inner side of the first bottom plate (403) and protrudes downward from the first bottom plate (403).

6. The pedestrian guardrail according to claim 5, characterized in that: The movable seat (5) comprises a second inner plate (501), a second top plate (502), a second bottom plate (503), a second upper flange (504) and a second lower flange (505); the inner side of the second top plate (502) and the inner side of the second bottom plate (503) are respectively connected to the upper and lower sides of the second inner plate (501), and the second top plate (502), the second inner plate (501) and the second bottom plate (503) enclose to form the second opening; the second upper flange (504) is connected to the outer side of the second top plate (502) and protrudes upward from the second top plate (502), and the second lower flange (505) is connected to the outer side of the second bottom plate (503) and protrudes downward from the second bottom plate (503).

7. The pedestrian guardrail according to claim 6, characterized in that: Pre-welded nuts (6) are provided on the outer sides of the first upper flange (404) and the first lower flange (405); bolt (7) through holes are provided on the first upper flange (404), the first lower flange (405), the second upper flange (504) and the second lower flange (505); the first upper flange (404) abuts against the second upper flange (504) and the two are connected by bolts (7); the first lower flange (405) abuts against the second lower flange (505) and the two are connected by bolts (7).

8. The pedestrian guardrail according to claim 1, characterized in that: It also includes a second cross bar (8) and a third cross bar (9) arranged between two adjacent columns (1), wherein the first cross bar (2), the second cross bar (8) and the third cross bar (9) are arranged at intervals in the vertical direction; both ends of the second cross bar (8) and the third cross bar (9) are respectively connected to the columns (1) through the flexible connection components.

9. The pedestrian guardrail according to claim 8, characterized in that: It also includes a rectangular frame-shaped plate (10) arranged between two adjacent columns (1), the upper side of the rectangular frame-shaped plate (10) is fixedly connected to the lower side of the second crossbar (8), and the lower side of the rectangular frame-shaped plate (10) is fixedly connected to the upper side of the third crossbar. The rectangular frame-shaped plate (10) can be used to install a cable (11) or glass (12).

10. A bridge, characterized in that: The pedestrian guardrail according to any one of claims 1 to 9 is applied.

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