CN114737474A - Large-span assembly type steel bridge structure - Google Patents
Large-span assembly type steel bridge structure Download PDFInfo
- Publication number
- CN114737474A CN114737474A CN202210412950.XA CN202210412950A CN114737474A CN 114737474 A CN114737474 A CN 114737474A CN 202210412950 A CN202210412950 A CN 202210412950A CN 114737474 A CN114737474 A CN 114737474A
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- China
- Prior art keywords
- guardrail
- sliding
- mounting
- bridge body
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/103—Parapets, railings ; Guard barriers or road-bridges
Abstract
The invention relates to the technical field of bridge construction, in particular to a large-span assembly type steel bridge structure, which comprises a bridge body, wherein first guardrails are arranged on two sides of the bridge body, the bridge body is connected with mounting frames in a sliding manner, the sliding direction of each mounting frame relative to the bridge body is inclined or vertical to two side surfaces of the bridge body, an adjusting unit for adjusting the sliding resistance of the mounting frames relative to the bridge body is arranged at the sliding connection position of the bridge body and the mounting frames, a supporting frame is arranged below the first guardrails by each mounting frame, a second guardrail is arranged at one side of each mounting frame, each second guardrail is positioned on one side of the first guardrail far away from the bridge body, the height of each second guardrail is greater than that of the first guardrail, a support is connected between any two adjacent second guardrails in a sliding manner, and a roller is rotatably connected on each support and the second guardrail, the invention ensures that the guardrails can well block vehicles, preventing falling under the bridge.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a large-span fabricated steel bridge structure.
Background
The assembled steel bridge is a system bridge which can be decomposed and can be quickly erected, and has the characteristics of simple structure, light and handy components, strong interchangeability, convenient and quick assembly, strong adaptability, economy, practicality and the like.
Disclosure of Invention
Aiming at the defects in the prior art and overcoming the defects in the prior art, the invention aims to provide a large-span assembly type steel bridge structure and solve the problem that a guardrail cannot effectively block a vehicle.
The technical scheme is that the large-span assembly type steel bridge structure comprises a bridge body, wherein first guardrails are installed on two sides of the bridge body, the bridge body is connected with installation frames in a sliding mode, the sliding direction of each installation frame relative to the bridge body is inclined or perpendicular to two side faces of the bridge body, an adjusting unit used for adjusting the sliding resistance of the installation frame relative to the bridge body is installed at the sliding connection position of the bridge body and the installation frames, each installation frame is provided with a support frame below the first guardrails, each installation frame is provided with a second guardrail at one side of the support frame, each second guardrail is located on one side, far away from the bridge body, of the first guardrail, the height of each second guardrail is larger than that of the first guardrail, the second guardrails are connected with the supports in a sliding mode between any two adjacent supports, and the second guardrails are connected with rollers in a rotating mode.
Preferably, the mounting bracket includes the slide bar, each slide bar one end and second guardrail fixed connection, each slide bar other end extends towards the pontic direction and is in end fixed connection baffle, each slide bar and pontic sliding connection, each slide bar and pontic junction are located between second guardrail and the baffle.
Preferably, the second guardrail comprises connecting frames, each connecting frame is rotatably connected with a roller, and each connecting frame and the support are arranged alternately along the vertical direction.
Preferably, the adjusting unit comprises friction plates, each friction plate is located between the bridge body and the mounting frame, each friction plate is in surface contact with the mounting frame, the bridge body is connected with a sliding block in a sliding mode, and each sliding block is in surface contact with part of each friction plate.
Preferably, a reinforcing bar is installed between each mounting bracket and the second guard rail.
Preferably, each sliding rod is fixedly connected with a fixing rod at the second guardrail, a support frame is fixedly connected between a part of each fixing rod and the baffle plate, and the support frame is positioned between the sliding rods.
Preferably, the support frame includes horizontal pole, vertical pole, each horizontal pole and vertical pole fixed connection, each horizontal pole one end and dead lever fixed connection, each horizontal pole other end and baffle fixed connection.
Preferably, the second guardrail further comprises vertical rods, each vertical rod is fixedly connected with the mounting rack, the connecting rack and the mounting rods are fixedly connected between the vertical rods, long holes which are axially arranged along the mounting rods are formed in two ends of each mounting rod, and each mounting rod is slidably connected with one end of the support through the long holes.
Preferably, a connecting plate is arranged between the sliding blocks, a connecting rod is rotatably connected between the sliding blocks and the connecting plate, each connecting plate is in threaded connection with a rotating rod, and two adjacent threads of each connecting plate are opposite in direction.
The invention provides a large-span assembled steel bridge structure, which has the following beneficial effects compared with the prior art:
1. when the vehicle moves outwards through the first guardrail, if the speed direction of the vehicle inclines with two side faces of the bridge body, the vehicle contacts with the roller, on one hand, the stress of the roller enables part of the second guardrails to move towards the direction far away from the bridge body and drives the mounting frame to slide relative to the bridge body, the mounting frame is enabled to receive large sliding resistance in the sliding process due to the adjusting unit, so that the mounting frame stops after sliding for a certain distance, on the other hand, the speed direction of the vehicle is adjusted through the rotation of the roller, when the second guardrails move towards the direction far away from the bridge body, the supports between the second guardrails slide relative to the second guardrails, so that the vehicle always contacts with the roller in the moving process and moves along the direction of the roller, in addition, the vehicle between the first guardrail and the second guardrail is supported through the support frame, so that the vehicle is blocked by the second guardrails and is prevented from falling under the bridge, if the speed direction of vehicle is perpendicular with pontic both sides face, the vehicle contacts with the cylinder, the atress of cylinder makes part second guardrail remove to the direction of keeping away from the pontic, and drive the relative pontic of mounting bracket and slide, because adjusting unit makes the mounting bracket receive great sliding resistance in the slip process, thereby make the mounting bracket stop after sliding the certain distance, support the vehicle between first guardrail and the second guardrail through the support frame simultaneously, thereby make the vehicle block by the second guardrail, prevent to fall into under the bridge.
Drawings
FIG. 1 is a schematic sectional front view of the present invention.
FIG. 2 is a schematic cross-sectional view taken along the line A-A of the present invention.
FIG. 3 is a schematic cross-sectional view taken along the direction B-B of the present invention.
Fig. 4 is a partially enlarged view of the present invention at C.
In the figure: 1 pontic, 2 first guardrails, 3 second guardrails, 3.1 montants, 3.2 link, 3.3 installation pole, 3.4 rectangular hole, 4 mounting brackets, 4.1 slide bars, 4.2 baffles, 4.3 dead levers, 5 regulating unit, 5.1 friction disc, 5.2 sliders, 5.3 connecting plates, 5.4 connecting rods, 5.5 rotary rods, 6 support frames, 6.1 horizontal rods, 6.2 vertical rods, 7 supports, 8 cylinders, 9 reinforcing rods.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without any creative effort belong to the protection scope of the present invention, and in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance in the description of the present invention, it being understood that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below by means of specific embodiments and with reference to the attached drawings.
Referring to fig. 1-4, the present invention provides a technical solution: a large-span assembly type steel bridge structure comprises a bridge body 1, first guardrails 2 are fixed on two sides of the bridge body 1 through bolts, the bridge body 1 is connected with mounting frames 4 in a sliding mode, the sliding direction of each mounting frame 4 relative to the bridge body 1 is perpendicular to two side faces of the bridge body 1 and can be arranged in an inclined mode, adjusting units 5 used for adjusting the sliding resistance of the mounting frames 4 relative to the bridge body 1 are installed at the sliding connection positions of the bridge body 1 and the mounting frames 4, supporting frames 6 are installed below the first guardrails 2 of the mounting frames 4, second guardrails 3 are installed on one sides of the supporting frames 6 of the mounting frames 4, each second guardrail 3 is located on one side, far away from the bridge body 1, of the first guardrail 2, the height of each second guardrail 3 is larger than that of the first guardrail 2, a sliding connection support 7 is arranged between any two adjacent second guardrails 3, a connection roller 8 is rotatably connected on each support 7 and the second guardrail 3, when a vehicle moves outwards through the first guardrails 2, if the speed direction of the vehicle inclines with two side faces of the bridge body 1, the vehicle contacts with the roller 8, on one hand, the stress of the roller 8 enables part of the second guardrail 3 to move towards the direction far away from the bridge body 1 and drives the mounting frame 4 to slide relative to the bridge body 1, on the other hand, the mounting frame 4 stops after sliding for a certain distance due to the large sliding resistance of the mounting frame 4 in the sliding process due to the adjusting unit 5, on the other hand, the speed direction of the vehicle is adjusted through the rotation of the roller 8, when the second guardrail 3 moves towards the direction far away from the bridge body 1, the support 7 between the second guardrails 3 slides relative to the second guardrails 3, so that the vehicle always contacts with the roller 8 in the moving process, the vehicle moves along the direction of the roller 8, meanwhile, the second guardrails 3 far away from the vehicle is not influenced, in addition, the vehicle between the first guardrail 2 and the second guardrail 3 is supported through the support frame 6, thereby make the vehicle blockked by second guardrail 3, prevent to fall into under the bridge, if the speed direction of vehicle is perpendicular with 1 both sides face of pontic, the vehicle contacts with cylinder 8, cylinder 8's atress makes partial second guardrail 3 to the direction removal of keeping away from pontic 1, and drive mounting bracket 4 and slide 1 relative pontic, because regulating unit 5 makes mounting bracket 4 receive great sliding resistance at the slip in-process, thereby make mounting bracket 4 stop after sliding the certain distance, when second guardrail 3 when keeping away from pontic 1 direction removal, support 7 between each second guardrail 3 slides 3 relative second guardrail, make the second guardrail 3 of keeping away from the vehicle not influenced, support the vehicle between first guardrail 2 and the second guardrail 3 through support frame 6 simultaneously, thereby make the vehicle blockked by second guardrail 3, prevent to fall into under the bridge.
In an embodiment, the mounting frame 4 includes slide bars 4.1, one end of each slide bar 4.1 is bolted to the second guardrail 3, the other end of each slide bar 4.1 extends towards the direction of the bridge body 1 and is bolted to the baffle 4.2 at the end, each slide bar 4.1 is slidably connected to the bridge body 1, the joint of each slide bar 4.1 and the bridge body 1 is located between the second guardrail 3 and the baffle 4.2, there are four slide bars 4.1 with suitable number in each mounting frame 4, the baffle 4.2 prevents the mounting frame 4 from separating from the bridge body 1 after sliding a certain distance relative to the bridge body 1, and the maximum sliding distance of the mounting frame 4 is limited.
In an embodiment each slide bar 4.1 is bolted with a fixing bar 4.3 at the second railing 3, a support frame 6 is bolted between a part of each fixing bar 4.3 and the barrier 4.2, the support frame 6 being located between each slide bar 4.1 so that the support frame 6 does not affect the sliding of the mounting frame 4 with respect to the bridge 1, wherein there are suitable numbers of fixing bars 4.3, such as two, in each mounting frame 4.
In an embodiment, the supporting frames 6 comprise cross bars 6.1 and longitudinal bars 6.2, each cross bar 6.1 is fixed with a longitudinal bar 6.2 through bolts, one end of each cross bar 6.1 is fixed with a fixing rod 4.3 through bolts, the other end of each cross bar 6.1 is fixed with a baffle 4.2 through bolts, two cross bars 6.1 and five longitudinal bars 6.2 are arranged in each supporting frame 6, other cross bars 6.1 and longitudinal bars 6.2 with proper quantity can be arranged, after a vehicle falls onto the supporting frame 6 through the cross bars 6.1 and the longitudinal bars 6.2, tires can easily enter into the space between the cross bars 6.1 and the longitudinal bars 6.2, and the vehicle is not influenced by power caused by misoperation.
In one embodiment, there are bolt reinforcing rods 9 between each mounting frame 4 and the second guard rail 3, and there are as many as four reinforcing rods 9 at each second guard rail 3.
In one embodiment, the second guardrail 3 comprises connecting frames 3.2, each connecting frame 3.2 is provided with a rotary connecting roller 8, and each connecting frame 3.2 and the bracket 7 are arranged alternately along the vertical direction.
In one embodiment, the second guard rail 3 further comprises vertical bars 3.1, each vertical bar 3.1 is fixed with the mounting rack 4 through bolts, the connecting rack 3.2 and the mounting rods 3.3 are fixed between the vertical bars 3.1 through bolts, long holes 3.4 are arranged at two ends of each mounting rod 3.3 along the axial direction of each mounting rod, each mounting rod 3.3 is connected with one end of the support 7 through the long holes 3.4 in a sliding manner, each second guard rail 3 is provided with two vertical bars 3.1, two connecting racks 3.2 and four mounting rods 3.3, the vertical bars 3.1, the connecting racks 3.2 and the mounting rods 3.3 can be in other suitable numbers, each mounting rod 3.3 is provided with two long holes 3.4, and two, four or five supports 7 are arranged between two adjacent second guard rails 3, when the distance of the two adjacent second guardrails 3 moving to the outside of the bridge body 1 is different, the support 7 slides relative to the second guardrails 3, so that the support 7 always blocks between the two adjacent second guardrails 3.
In one embodiment, the adjusting unit 5 includes friction plates 5.1, each friction plate 5.1 is located between the bridge 1 and the mounting frame 4, each friction plate 5.1 is in surface contact with a sliding rod 4.1 in the mounting frame 4, one part of each sliding rod 4.1 is provided with four friction plates 5.1, the four friction plates 5.1 are located on the peripheral side of the sliding rod 4.1, the bridge 1 is connected with a sliding block 5.2 in a sliding manner, each sliding block 5.2 is in surface contact with a part of each friction plate 5.1, each sliding rod 4.1 is provided with three friction plates 5.1 located in a clamping groove between the bridge 1 and the sliding rod 4.1, the other sliding block is in contact with the sliding block 5.2, and the extrusion force of the friction plates 5.1 and the sliding rods 4.1 is increased through the movement of the sliding block 5.2, so as to adjust the sliding resistance of the mounting frame 4 relative to the bridge 1.
In an embodiment, a connecting plate 5.3 is arranged between the sliding blocks 5.2, a connecting rod 5.4 is rotatably connected between each sliding block 5.2 and the connecting plate 5.3, each connecting plate 5.3 is in threaded connection with a rotating rod 5.5, two adjacent threads of each connecting plate 5.3 are opposite in direction, an adjusting unit 5 is arranged at each mounting frame 4, four sliding blocks 5.2, eight connecting rods 5.4, sixteen friction plates 5.1 and four connecting plates 5.3 are arranged in each adjusting unit 5, the sliding blocks 5.2, the connecting rods 5.4, the friction plates 5.1 and the connecting plates 5.3 can be in other suitable numbers, and the distance between the connecting plates 5.3 is changed through the rotation of the rotating rod 5.5, so that the sliding blocks 5.2 slide relative to the bridge 1, and the sliding resistance of the mounting frame 4 relative to the bridge 1 is adjusted.
The present invention has been described in detail with reference to the specific embodiments and examples, but these are not intended to limit the present invention. Many variations and modifications may be made by one of ordinary skill in the art without departing from the principles of the present invention, which should also be considered as within the scope of the present invention.
Claims (9)
1. The utility model provides a large span assembled steel bridge structure, includes pontic (1), first guardrail (2), its characterized in that are installed to pontic (1) both sides: the bridge body (1) is connected with mounting frames (4) in a sliding way, the sliding direction of each mounting frame (4) relative to the bridge body (1) is inclined or vertical to two side surfaces of the bridge body (1), the sliding connection part of the bridge body (1) and the mounting frames (4) is provided with an adjusting unit (5) for adjusting the sliding resistance of the mounting frames (4) relative to the bridge body (1), each mounting frame (4) is provided with a support frame (6) below the first guardrail (2), each mounting frame (4) is provided with a second guardrail (3) at one side of the support frame (6), each second guardrail (3) is positioned at one side of the first guardrail (2) far away from the bridge body (1), and the height of each second guardrail (3) is greater than that of the first guardrail (2), any two adjacent second guardrails (3) are connected with the support (7) in a sliding manner, and the support (7) and the second guardrail (3) are connected with the roller (8) in a rotating manner.
2. A large span fabricated steel bridge structure according to claim 1, wherein: mounting bracket (4) include slide bar (4.1), each slide bar (4.1) one end and second guardrail (3) fixed connection, each slide bar (4.1) other end extends and is in end fixed connection baffle (4.2) towards pontic (1) direction, each slide bar (4.1) and pontic (1) sliding connection, each slide bar (4.1) and pontic (1) junction is located between second guardrail (3) and baffle (4.2).
3. A large span fabricated steel bridge structure according to claim 1, wherein: the second guardrail (3) comprises connecting frames (3.2), each connecting frame (3.2) is connected with a roller (8) in a rotating mode, and each connecting frame (3.2) and the support (7) are arranged alternately in the vertical direction.
4. A large span fabricated steel bridge structure according to claim 1, wherein: the adjusting unit (5) comprises friction plates (5.1), each friction plate (5.1) is located between the bridge body (1) and the mounting frame (4), each friction plate (5.1) is in surface contact with the mounting frame (4), the bridge body (1) is connected with a sliding block (5.2) in a sliding mode, and each sliding block (5.2) is in surface contact with part of each friction plate (5.1).
5. A large span fabricated steel bridge structure according to claim 1, wherein: and reinforcing rods (9) are arranged between the mounting frames (4) and the second guardrails (3).
6. A large span fabricated steel bridge structure according to claim 2, wherein: each sliding rod (4.1) is fixedly connected with a fixing rod (4.3) at a second guardrail (3), a supporting frame (6) is fixedly connected between a part of each fixing rod (4.3) and the baffle (4.2), and the supporting frame (6) is positioned between the sliding rods (4.1).
7. The large-span fabricated steel bridge structure of claim 6, wherein: the supporting frame (6) comprises cross rods (6.1) and longitudinal rods (6.2), each cross rod (6.1) is fixedly connected with the longitudinal rods (6.2), one end of each cross rod (6.1) is fixedly connected with a fixing rod (4.3), and the other end of each cross rod (6.1) is fixedly connected with a baffle (4.2).
8. A large span fabricated steel bridge structure according to claim 3, wherein: the second guardrail (3) further comprises vertical rods (3.1), each vertical rod (3.1) is fixedly connected with the mounting frame (4), each vertical rod (3.1) is fixedly connected with the connecting frame (3.2) and the mounting rods (3.3), both ends of each mounting rod (3.3) are provided with strip holes (3.4) which are axially arranged along the mounting rods, and each mounting rod (3.3) is slidably connected with one end of the support (7) through the strip holes (3.4).
9. The large-span fabricated steel bridge structure of claim 4, wherein: connecting plates (5.3) are arranged between the sliding blocks (5.2), connecting rods (5.4) are rotatably connected between the sliding blocks (5.2) and the connecting plates (5.3), the connecting plates (5.3) are in threaded connection with rotating rods (5.5), and two adjacent threads of the connecting plates (5.3) are opposite in direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412950.XA CN114737474A (en) | 2022-04-20 | 2022-04-20 | Large-span assembly type steel bridge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412950.XA CN114737474A (en) | 2022-04-20 | 2022-04-20 | Large-span assembly type steel bridge structure |
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| Publication Number | Publication Date |
|---|---|
| CN114737474A true CN114737474A (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210412950.XA Pending CN114737474A (en) | 2022-04-20 | 2022-04-20 | Large-span assembly type steel bridge structure |
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| CN (1) | CN114737474A (en) |
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| KR100706932B1 (en) * | 2006-08-25 | 2007-04-13 | 주식회사 수성엔지니어링 | Apparatus for inspecting bridge |
| CN207130650U (en) * | 2017-06-07 | 2018-03-23 | 南昌航空大学 | A kind of road and bridge are with multiple anticollision barrier |
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| CN209873565U (en) * | 2019-04-15 | 2019-12-31 | 吕凤华 | Novel bridge railing that anticollision effect is good |
| CN210002253U (en) * | 2019-05-22 | 2020-01-31 | 河南城建学院 | Anti-collision guardrail for road and bridge |
| CN111962430A (en) * | 2020-08-17 | 2020-11-20 | 邵兴杰 | Anti-collision type flat road and bidirectional flat road system |
| CN112726371A (en) * | 2020-12-30 | 2021-04-30 | 南京年年冠商贸有限公司 | Anticollision type assembled steel bridge |
| CN112982156A (en) * | 2021-02-20 | 2021-06-18 | 陈娟 | Energy consumption guardrail for bridge |
| CN214623656U (en) * | 2021-06-08 | 2021-11-05 | 重庆市市政设计研究院有限公司 | Combined bridge design model |
| CN215629631U (en) * | 2021-09-18 | 2022-01-25 | 周文 | Anti-collision safety guardrail for municipal road and bridge engineering |
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2022
- 2022-04-20 CN CN202210412950.XA patent/CN114737474A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7226187A (en) * | 1986-05-01 | 1987-11-05 | Energy Absorption Systems Inc. | Highway barrier |
| KR100706932B1 (en) * | 2006-08-25 | 2007-04-13 | 주식회사 수성엔지니어링 | Apparatus for inspecting bridge |
| CN207130650U (en) * | 2017-06-07 | 2018-03-23 | 南昌航空大学 | A kind of road and bridge are with multiple anticollision barrier |
| CN209686233U (en) * | 2019-03-20 | 2019-11-26 | 青海民族大学 | A kind of Bridge guardrail |
| CN209873565U (en) * | 2019-04-15 | 2019-12-31 | 吕凤华 | Novel bridge railing that anticollision effect is good |
| CN210002253U (en) * | 2019-05-22 | 2020-01-31 | 河南城建学院 | Anti-collision guardrail for road and bridge |
| CN111962430A (en) * | 2020-08-17 | 2020-11-20 | 邵兴杰 | Anti-collision type flat road and bidirectional flat road system |
| CN112726371A (en) * | 2020-12-30 | 2021-04-30 | 南京年年冠商贸有限公司 | Anticollision type assembled steel bridge |
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| CN214623656U (en) * | 2021-06-08 | 2021-11-05 | 重庆市市政设计研究院有限公司 | Combined bridge design model |
| CN215629631U (en) * | 2021-09-18 | 2022-01-25 | 周文 | Anti-collision safety guardrail for municipal road and bridge engineering |
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