CN219793593U - Small-span steel bridge - Google Patents
Small-span steel bridge Download PDFInfo
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- CN219793593U CN219793593U CN202321215771.3U CN202321215771U CN219793593U CN 219793593 U CN219793593 U CN 219793593U CN 202321215771 U CN202321215771 U CN 202321215771U CN 219793593 U CN219793593 U CN 219793593U
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- span steel
- main longitudinal
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 238000003466 welding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 3
- 239000011150 reinforced concrete Chemical group 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a small-span steel temporary bridge, wherein an end connecting plate is connected to an iron bench embedded in a pier at two sides; two main longitudinal beams, wherein two ends of each main longitudinal beam are connected with end connecting plates of two banks; a bridge deck connected to the top of the main stringers; the two ends of each transverse connecting beam are connected with the two main longitudinal beams; the two ends of the longitudinal connecting beam are respectively connected with two adjacent transverse connecting beams; wherein, two main longitudinal beams are respectively connected at two ends of the end connecting plate. According to the utility model, the end connecting plates are connected to the pre-buried iron bench on two sides, so that the foundation of the steel temporary bridge can be firmly connected, the two main longitudinal beams are connected to the end connecting plates, the tops of the main longitudinal beams are connected with the bridge deck, the transverse connecting beams are connected between the main longitudinal beams, and the longitudinal connecting beams are arranged between the transverse connecting beams, so that the steel temporary bridge can pass through heavier objects under the condition of using the same materials.
Description
Technical Field
The utility model belongs to the technical field of steel temporary bridges, and particularly relates to a small-span steel temporary bridge.
Background
In engineering, the conditions of small-span rivers and ditches are frequently met, reinforced concrete bridges or wood bridges are generally adopted, but the wood bridges have insufficient bearing capacity to meet the traffic demands of construction vehicles, and the reinforced concrete bridges have high cost and cost.
The patent application for the railway oil gas pipeline migration small-span steel temporary bridge device comprises a bridge deck and a support frame, wherein the bottom of the bridge deck is fixedly connected with the top of the support frame, the support frame comprises a first cross beam and a second cross beam, the bottom of the second cross beam is fixedly connected with a longitudinal beam, and two sides of the top of the second cross beam are respectively and spirally connected with a first bolt, and the two sides are positioned right above the longitudinal beam. Although the patent application can also meet the traffic demand of vehicles, the patent application has fewer beam frames at the bottom of the bridge deck, and is difficult to meet the demand of large construction vehicles.
Disclosure of Invention
In order to overcome the problems in the prior art, the utility model aims to provide a small-span steel temporary bridge, which can meet the passing of heavier instruments by arranging an end connecting plate, a main longitudinal beam, a transverse connecting beam and a longitudinal connecting beam at the bottom of a bridge deck.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a small-span steel bridge comprising:
the end connecting plate is connected to the iron bench embedded in the pier at two sides;
two main longitudinal beams, wherein two ends of each main longitudinal beam are connected with the end connecting plates of two banks;
a bridge deck connected to the top of the main stringers;
the two ends of each transverse connecting beam are connected with the two main longitudinal beams;
the two ends of the longitudinal connecting beam are respectively connected with two adjacent transverse connecting beams;
wherein, two main longitudinal beams are respectively connected with two ends of the end connecting plate.
Optionally, a plurality of anti-slip steel bars are arranged on the bridge deck.
Optionally, a guardrail cantilever beam is connected to one side of the main longitudinal beam, which faces away from the transverse connecting beam.
Optionally, a guardrail is arranged at the top of the guardrail cantilever beam.
Optionally, the small-span steel temporary bridge further comprises a scissor support, the scissor support comprises two oblique rod pieces with intersecting end parts, the intersection points of the two oblique rod pieces are arranged at the joint of the transverse connecting beam and the longitudinal connecting beam, and the other ends of the two oblique rod pieces are respectively connected with two ends of the adjacent transverse connecting beam.
Optionally, the extending direction of the end connection plate is perpendicular to the extending direction of the main longitudinal beam.
Optionally, the main longitudinal beam comprises an i-beam with two mutually connected sides.
Optionally, the strength of the main girder is not less than that of the double HW400×400 section steel.
Optionally, the longitudinal connecting beam and the transverse connecting beam are fixedly connected through a tenon.
Optionally, the end connecting plates, the main longitudinal beams, the bridge deck boards and the transverse connecting beams are connected by welding, and the welding angle size is not smaller than 10mm.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, the end connecting plates are connected to the pre-buried iron bench on two sides, so that the foundation of the steel temporary bridge can be firmly connected, the two main longitudinal beams are connected to the end connecting plates, the tops of the main longitudinal beams are connected with the bridge deck, the transverse connecting beams are connected between the main longitudinal beams, and the longitudinal connecting beams are arranged between the transverse connecting beams, so that the steel temporary bridge can meet the requirements of actual construction through heavier objects under the condition of using the same materials.
Furthermore, the bridge deck plate is provided with the plurality of anti-slip steel bars, so that accidents caused by sliding when vehicles pass can be prevented.
Furthermore, the guardrail cantilever beam is arranged on the main longitudinal beam, and the guardrail is arranged on the guardrail cantilever beam, so that personnel and vehicles can be prevented from falling off the steel temporary bridge.
Furthermore, the transverse connecting beam is provided with the scissor support, so that the strength of the small-span steel temporary bridge can be further improved.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. In the drawings:
FIG. 1 is a side view of the present utility model;
FIG. 2 is a top view in the direction A-A of FIG. 1 in accordance with the present utility model;
FIG. 3 is a cross-sectional view taken along the direction B-B in FIG. 1 in accordance with the present utility model;
fig. 4 is an enlarged view of a portion of fig. 3C in accordance with the present utility model.
Wherein, 1-guardrail cantilever beam, 2-main longitudinal beam, 3-decking, 4-anti-skidding reinforcing bar, 5-transverse connection roof beam, 6-longitudinal tie beam, 7-tip connecting plate, 8-guardrail, 9-bracing.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The present utility model will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, iron benches are pre-buried on two-bank piers of a small-span steel bridge, each iron bench is welded with an end connecting plate 7, two ends of each end connecting plate 7 are connected with a main longitudinal beam 2, two ends of each main longitudinal beam 2 are respectively connected to the end connecting plates 7 on two banks, the extending direction of each end connecting plate 7 is perpendicular to the extending direction of each main longitudinal beam 2, each main longitudinal beam 2 comprises two i-beams, the top side edges of the two i-beams are connected with each other, and the bottom side edges of the two i-beams are connected with each other.
The top of the main longitudinal beam 2 is connected with a bridge deck plate 3, and a plurality of anti-slip steel bars 4 are arranged on the bridge deck plate 3. The main stringers 2 on both sides of the end connection plates 7 are mirror symmetrical about the centre line of the bridge deck 3. The main stringers 2 on both sides of the end connection plate 7 are connected by a plurality of transverse connecting beams 5, and the transverse connecting beams 5 are mutually perpendicular to the main stringers 2. The transverse connecting beams 5 are connected through longitudinal connecting beams 6, the longitudinal connecting beams 6 are perpendicular to the transverse connecting beams 5, and the transverse connecting beams 5 are parallel to each other.
The cross connecting beam 5 is provided with a scissor support 9 at the joint of the longitudinal connecting beam 6, the scissor support 9 comprises two inclined rod pieces, the intersection point of the two inclined rod pieces is arranged at the joint of the cross connecting beam 5 and the longitudinal connecting beam 6, and the end parts of the inclined rod pieces are connected with the end parts of the cross connecting beam 5.
One side of the main longitudinal beam 2, which is away from the transverse connecting beam 5, is connected with a guardrail cantilever beam 1, the guardrail cantilever beam 1 is perpendicular to the transverse connecting beam 5, and the top of the guardrail cantilever beam 1 is provided with a guardrail 8.
Examples
Embodiments of the present utility model are further described below with reference to fig. 1-4.
In this embodiment, the total length of the small-span steel temporary bridge is 8500mm, the number of the transverse connecting beams 5 is 9, the transverse connecting beams 5 are arranged at equal intervals of 1000mm, the length of the transverse connecting beams 5 is 1300mm, the distance between the central lines of the main longitudinal beams 2 is 2000mm, the number of the anti-slip steel bars 4 is 120, and the anti-slip steel bars 4 are arranged on the bridge deck 3 at equal intervals of 150 mm. The length of the anti-skid steel bar 4 is 1325mm, and the diameter of the anti-skid steel bar 4 is 20mm. The bridge deck 3 has a length of 8500mm, a width of 4350mm and a thickness of 10mm. The number of the guardrail cantilever beams 1 is 18, the guardrail cantilever beams 1 are respectively arranged on two sides of the bridge deck 3, the number of one side is 9, the distance between the end parts of the guardrail cantilever beams 1 on two sides is 4550mm, and the guardrail cantilever beams 1 are arranged at equal intervals of 1000 mm. The length of the oblique rod piece of the scissor support 9 is 1175mm. The guard rail 8 has a diameter of 48mm. The length of the end connecting plate 7 is 2740mm, the width is 400mm, and the thickness is 20mm. The longitudinal connecting beams 6 have a length of 990mm and a number of 8.
In the embodiment, the guardrail cantilever beam 1, the main longitudinal beam 2, the bridge deck plate 3, the anti-skid steel bars 4, the transverse connecting beam 5, the longitudinal connecting beam 6, the end connecting plate 7, the guardrail 8 and the scissor support 9 are all made of Q235 steel.
In this embodiment, the strength of the main girder 2 is not less than the double HW400×400 section steel.
In this embodiment, the fillet size of the welded connection is not less than 10mm.
In this embodiment, as shown in fig. 4, a groove of 45 ° is formed between two i-beams of the main longitudinal beam 2, and then welding is performed.
In this embodiment, the longitudinal connecting beam 6 and the transverse connecting beam 5 are connected and fixed by forming tenons.
In this embodiment, the guard rail 8 is a steel pipe with a diameter of 48mm.
As shown in FIG. 1, the manufacturing method of the small-span steel temporary bridge comprises the following steps:
s1: and determining the height of the bridge pier according to the actual conditions on site, embedding iron benches at the bridge pier positions on the two sides, and respectively welding and fixing the two end connecting plates 7 with the embedded iron benches on the two sides.
S2: two ends of one main longitudinal beam 2 are respectively welded with one side of the two-bank end connecting plate 7, and two ends of the other main longitudinal beam 2 are respectively welded with the other side of the two-bank end connecting plate 7.
S3: both ends of the lateral connecting beam 5 are welded to the inner side surfaces of the two main stringers 2, respectively.
S4: the two ends of the longitudinal connecting beam 6 are welded to the midpoints of two adjacent transverse connecting beams 5.
S5: and welding the intersection point of the scissor support 9 at the joint of the transverse connecting beam 5 and the longitudinal connecting beam 6, and welding the end parts of the two inclined rod pieces of the scissor support 9 at the end parts of the adjacent transverse connecting beams 5.
S6: and the outer side surface of the main longitudinal beam 2 is welded with the guardrail cantilever beam 1, and the guardrail 8 is welded on the guardrail cantilever beam 1.
S7: the upper part of the main girder 2 is welded and ground to lay the bridge deck 3, and the bottom of the bridge deck 3 is welded to the main girder 2.
S8: the anti-slip steel bars 4 are welded on top of the bridge deck 3.
The device elements in the above embodiments are conventional device elements unless otherwise specified, and the structural arrangement, operation or control modes in the embodiments are conventional arrangement, operation or control modes in the art unless otherwise specified.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.
Claims (10)
1. A small-span steel bridge, comprising:
the end connecting plate (7) is connected to the iron bench embedded in the pier at the two sides;
two main stringers (2), both ends of each main stringer (2) are connected with the end connection plates (7) of both sides;
-a bridge deck (3) connected to the top of the main stringers (2);
the two ends of each transverse connecting beam (5) are connected with the two main longitudinal beams (2);
the two ends of the longitudinal connecting beam (6) are respectively connected with the two adjacent transverse connecting beams (5);
wherein, two main longitudinal beams (2) are respectively connected with two ends of the end connecting plate (7).
2. A small-span steel bridge according to claim 1, characterized in that the bridge deck (3) is provided with a plurality of anti-slip bars (4).
3. A small span steel bridge according to claim 1, characterized in that the side of the main longitudinal beam (2) facing away from the transverse contact beam (5) is connected with a guardrail cantilever (1).
4. A small span steel bridge according to claim 3, characterized in that the top of the guardrail cantilever (1) is provided with a guardrail (8).
5. The small-span steel temporary bridge according to claim 1, further comprising a scissor support (9), wherein the scissor support (9) comprises two oblique rod pieces with crossed ends, the intersection point of the two oblique rod pieces is arranged at the joint of the transverse connecting beam (5) and the longitudinal connecting beam (6), and the other ends of the two oblique rod pieces are respectively connected with two ends of the adjacent transverse connecting beam (5).
6. A small-span steel bridge according to claim 1, characterized in that the extension direction of the end connection plates (7) is perpendicular to the extension direction of the main stringers (2).
7. A small-span steel bridge according to claim 1, characterized in that the main girder (2) comprises two i-beams with side edges connected to each other.
8. A small span steel bridge according to claim 7, characterized in that the main stringers (2) have a strength not less than the double HW400 x 400 profile.
9. A small span steel bridge according to claim 1, characterized in that the longitudinal connecting beams (6) and the transverse connecting beams (5) are fixedly connected by means of a tenon.
10. The small-span steel bridge according to claim 1, wherein the end connecting plates (7), the main longitudinal beams (2), the bridge deck (3) and the transverse connecting beams (5) are connected by welding, and the welding angle size is not smaller than 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215771.3U CN219793593U (en) | 2023-05-18 | 2023-05-18 | Small-span steel bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321215771.3U CN219793593U (en) | 2023-05-18 | 2023-05-18 | Small-span steel bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219793593U true CN219793593U (en) | 2023-10-03 |
Family
ID=88182462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321215771.3U Active CN219793593U (en) | 2023-05-18 | 2023-05-18 | Small-span steel bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219793593U (en) |
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2023
- 2023-05-18 CN CN202321215771.3U patent/CN219793593U/en active Active
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