CN114960431A - Grid type steel-foamed aluminum combined anti-impact device and construction method thereof - Google Patents
Grid type steel-foamed aluminum combined anti-impact device and construction method thereof Download PDFInfo
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- CN114960431A CN114960431A CN202210516245.4A CN202210516245A CN114960431A CN 114960431 A CN114960431 A CN 114960431A CN 202210516245 A CN202210516245 A CN 202210516245A CN 114960431 A CN114960431 A CN 114960431A
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- Prior art keywords
- impact
- type steel
- foamed aluminum
- pier
- connecting plate
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- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 44
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 title abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000006260 foam Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 9
- 238000009439 industrial construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a grid type steel-foamed aluminum combined impact-resistant device and a construction method thereof, relating to the technical field of bridge engineering, wherein the main structure comprises a connecting plate, a pipe, a stiffening rib and a filler; two ends of each pipe are respectively connected with a connecting plate, the stiffening ribs are arranged between every two adjacent pipes, and the fillers are arranged in the pipes; the connecting plate is used for being connected with a pier. The square impact device resists impact load by using the strength of the steel plate under the action of multiple impacts; under the action of rare earthquakes, the steel plate and the foamed aluminum are used for dissipating energy by yielding, absorbing impact energy and being easy to replace after impact. The grid type structure is easy to expand and replace, and the number and the arrangement mode of the grids can be determined according to the structural form of the bridge pier and the form of the prevented impact objects. The invention has good designability and standardized structural form, and is suitable for industrial construction.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a grid type steel-foamed aluminum combined anti-impact device and a construction method thereof.
Background
With the development of economy and the rapid development of traffic infrastructure, a plurality of municipal bridges are built in cities, and a plurality of bridges are also erected in navigation rivers, but the bridge piers face outstanding impact risks, and the collision accidents of vehicles and ships in recent years prove that the bridge piers need better anti-collision protective measures.
Disclosure of Invention
In order to solve the technical problems, the invention provides a grid type steel-foamed aluminum combined anti-impact device which is standardized and industrially constructed and has high repeatability of a basic structural unit and a construction method thereof, aiming at protecting a pier from being damaged under the impact action and making corresponding contribution to the sustainable development of bridge engineering.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a grid type steel-foamed aluminum combined anti-impact device which comprises a connecting plate, a pipe, a stiffening rib and fillers, wherein the connecting plate is fixedly connected with the pipe; two ends of each pipe are respectively connected with a connecting plate, the stiffening ribs are arranged between every two adjacent pipes, and the fillers are arranged in the pipes; the connecting plate is used for being connected with a pier.
Optionally, the cross section of the pipe is circular or polygonal.
Optionally, the pipe is a steel pipe.
Optionally, the filler is foamed aluminum.
Optionally, the distribution form of the pipes in the plane is a polygon.
Optionally, the connecting plates at the two ends of the pipe are both square plates or arc plates.
Optionally, a plurality of through holes are formed in the connecting plate in contact with the pier, and the connecting plate in contact with the pier is connected with the pier through bolts.
The invention also provides a construction method of the grid type steel-foamed aluminum combined anti-impact device, wherein pipes added with fillers are placed on the connecting plates according to design requirements, the pipes and the connecting plates are welded and fixed, and stiffening ribs are welded among the pipes.
Compared with the prior art, the invention achieves the following technical effects:
1. the organic combination of steel and foamed aluminum realizes the performance difference design under the action of frequent impact and rare impact, effectively resists the action of frequent impact elastically, and absorbs shock, absorbs energy and releases the action of rare impact; the anti-impact capacity of the bridge pier is improved, the damage of the bridge pier under the impact action is reduced, the traffic function of the bridge is protected from being influenced, the disaster prevention and reduction capacity of the bridge is improved, and the development direction of disaster-resistant tough traffic infrastructure is met;
2. the foamed aluminum filled steel pipe is a basic structural unit of the anti-impact device, the repetition rate of the basic structural unit is high, and a large amount of standardized production is facilitated;
3. the grid type arrangement of the basic structure units can fully meet the anti-impact requirements of different piers and has good designability and expansibility;
4. the connection form of the pre-buried screw rod is convenient for replacing after impact, and the quick repair and replacement of the anti-impact device are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a lattice type steel-foamed aluminum combined impact protection device according to the present invention;
FIG. 2 is a schematic view of the internal structure of the lattice-type steel-foamed aluminum combined impact protection device of the present invention;
FIG. 3 is a schematic structural view of the grid type steel-foamed aluminum combined impact protection device of the present invention in a use state on a square pier;
FIG. 4 is a schematic structural diagram of a grid type steel-foamed aluminum combined impact protection device of the present invention in a use state on a circular pier;
FIG. 5 is a schematic structural diagram of a second embodiment of the lattice-type steel-foamed aluminum combined impact-resistant device of the present invention;
FIG. 6 is a schematic structural diagram of a third embodiment of the lattice-type steel-foamed aluminum combined impact-resistant device of the present invention;
fig. 7 is a load-displacement curve diagram of the lattice type steel-foamed aluminum combined impact protection device of the present invention.
Description of reference numerals: 101. connecting steel plates; 102. a stiffening rib; 103. a steel pipe; 104. foamed aluminum.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 7, the present embodiment provides a lattice type steel-foamed aluminum combined impact protection device, which comprises a connection plate, a pipe, a stiffener 102 and a filler; two ends of each pipe are respectively connected with a connecting plate, the stiffening rib 102 is arranged between every two adjacent pipes, and the filler is arranged in each pipe; the connecting plate is used for being connected with a pier.
In this embodiment, the pipe is a square steel pipe 103, the filler is aluminum foam 104, the aluminum foam 104 is cut into the cross-sectional shape of the steel pipe 103 and is directly placed into the steel pipe 103, and there is no special linking structure between the aluminum foam 104 and the steel pipe 103.
The steel pipes 103 are distributed in a polygonal form in a plane, the steel pipes 103 and the stiffening ribs 102 are arranged in a grid form, namely, the projections of the steel pipes 103 and the stiffening ribs 102 in the plane are spliced into a triangle, a square, a hexagon, an octagon and the like, the specific shape and the distance between the steel pipes 103 can be designed according to the specific use environment, the design principle is that the structural form of the grid is fine enough, and the relatively close bearing capacity and energy consumption capacity can be provided according to the shape of the alluvial substance, the required grid lattice position, the midpoint of the adjacent grids and the centers of the four grids.
The connecting plate is made of steel plates, is a main connecting component of the anti-impact device, is provided with a through hole in contact with the pier, penetrates through a screw rod embedded in the pier, and is fixed on the side face of the pier through a nut. The size of the connecting plate can be determined according to design requirements, for example, on a rectangular-section pier, the connecting plate can be arranged to be relatively large and cover all basic structural units on the side surface; on circular cross section pier, the connecting plate can set up to be less relatively, realizes the smooth transition of circular side to ensure protecting against shock device's effective coverage.
When the anti-impact device is installed on the bridge pier, the coverage range of a single anti-impact device can be determined according to the potential damage distribution range under the impact action, and quick replacement after impact damage is realized.
Example two
In this embodiment, a method for constructing a lattice-type steel-foamed aluminum combined impact protection device in the first embodiment is provided, wherein pipes with fillers are placed on the connection plates according to design requirements, the pipes and the connection plates are welded and fixed, and the stiffening ribs 102 are welded between the pipes.
The grid type steel-foamed aluminum combined anti-impact device provided by the invention adopts the steel pipes 103 filled with foamed aluminum 104 as basic structural units, and adopts grid type arrangement in a plane, so that the number of grids can be flexibly selected according to the size of a pier, the design requirement is met, the basic structural units are kept the same, and the standardization and the industrial construction of the anti-impact device are favorably realized.
The steel pipe 103 filled with the foamed aluminum 104 is used as a basic structural unit, and the size of the foamed aluminum 104, the wall thickness of the steel pipe 103 and the shape can be flexibly selected. The steel pipe 103 provides good initial bearing capacity and ensures that the steel pipe does not yield under the impact; the aluminum foam 104 provides sufficient deformability and energy dissipation capability. In the steel pipe 103 filled with the basic structural unit aluminum foam 104, the size and the wall thickness of the steel pipe 103 and the material of the aluminum foam 104 can be designed according to requirements, and the practicability is wide.
The grid type structure can enable the anti-impact device to be rapidly expanded in two directions, and the grid type structure realizes repeated basic structure units, so that rapid construction and repair on site are facilitated.
Fig. 7 is a load-displacement curve obtained by a sample piece of the grid type steel-foamed aluminum combined impact prevention device provided by the invention, which meets the fortification target of 1000kN of a railway pier and has good deformation capability and energy consumption capability.
The grid type steel-foamed aluminum combined impact-resistant device is simple in structure, convenient to construct, easy to replace, standardized in structure and high in industrialization degree. The grid type steel-foamed aluminum combined impact-proof device fully exerts the performance advantages of steel and foamed aluminum, realizes the performance design under the action of frequent impact and rare impact, meets the performance requirement of bridge collision prevention, and is an effective measure for guaranteeing the safety of traffic infrastructure.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A grid type steel-foamed aluminum combined anti-impact device is characterized by comprising a connecting plate, a pipe, a stiffening rib and fillers; two ends of each pipe are respectively connected with a connecting plate, the stiffening ribs are arranged between every two adjacent pipes, and the fillers are arranged in the pipes; the connecting plate is used for being connected with a pier.
2. The lattice type steel-aluminum foam combined impact protection device as claimed in claim 1, wherein the cross section of the tube is circular or polygonal.
3. The lattice type steel-aluminum foam combined impact protection device of claim 1, wherein the tube is a steel tube.
4. The lattice type steel-aluminum foam combination impact protection device of claim 1, wherein the filler is aluminum foam.
5. A lattice type steel-foamed aluminum combined impact protection device according to claim 1, wherein the tubes are distributed in a polygonal shape in a plane.
6. The lattice type steel-foamed aluminum combined impact protection device as claimed in claim 1, wherein the connection plates at both ends of the tube are both square plates or both arc plates.
7. The lattice type steel-foamed aluminum combined impact prevention device as claimed in claim 1, wherein the connection plate contacting with a pier is provided with a plurality of through holes, and the connection plate contacting with a pier is connected with a pier by bolts.
8. The method for constructing the grid type steel-foamed aluminum combined impact protection device according to any one of claims 1 to 7, wherein pipes added with fillers are placed on the connection plates according to design requirements and are welded and fixed with the connection plates, and stiffening ribs are welded among the pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516245.4A CN114960431A (en) | 2022-05-12 | 2022-05-12 | Grid type steel-foamed aluminum combined anti-impact device and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210516245.4A CN114960431A (en) | 2022-05-12 | 2022-05-12 | Grid type steel-foamed aluminum combined anti-impact device and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114960431A true CN114960431A (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210516245.4A Pending CN114960431A (en) | 2022-05-12 | 2022-05-12 | Grid type steel-foamed aluminum combined anti-impact device and construction method thereof |
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| CN (1) | CN114960431A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001207410A (en) * | 2000-01-28 | 2001-08-03 | Sumiya Tsutomu | Pier structure and its constructing method |
| CN202482801U (en) * | 2011-12-30 | 2012-10-10 | 南京工业大学 | Buffer and energy absorption type web plate reinforced composite material anti-collision device |
| CN204919309U (en) * | 2015-09-07 | 2015-12-30 | 西安中交土木科技有限公司 | Pier adheres to formula consuming excessive quantities of energy and resources safety protection structure |
| CN206337526U (en) * | 2016-12-12 | 2017-07-18 | 中铁二十局集团第三工程有限公司 | A kind of anticollision device of pier based on foamed aluminium |
| CN110258313A (en) * | 2019-07-17 | 2019-09-20 | 安徽省交通勘察设计院有限公司 | A kind of bridge pier protection guard |
| CN110804971A (en) * | 2019-10-18 | 2020-02-18 | 上海市政工程设计研究总院（集团）有限公司 | Highway anti-collision column device and construction method thereof |
| CN111236157A (en) * | 2020-03-09 | 2020-06-05 | 上海市城市建设设计研究总院（集团）有限公司 | Ship collision prevention structure of attached steel concrete composite structure |
| CN112227275A (en) * | 2020-09-30 | 2021-01-15 | 北京工业大学 | Replaceable foam concrete filled honeycomb pier anti-explosion device and mounting method thereof |
| CN113174842A (en) * | 2021-05-26 | 2021-07-27 | 合肥工业大学 | Combined pier crossbeam of split type power consumption antidetonation |
| CN216193974U (en) * | 2021-10-12 | 2022-04-05 | 丛日亮 | Highway bridge is with protection pier |
-
2022
- 2022-05-12 CN CN202210516245.4A patent/CN114960431A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001207410A (en) * | 2000-01-28 | 2001-08-03 | Sumiya Tsutomu | Pier structure and its constructing method |
| CN202482801U (en) * | 2011-12-30 | 2012-10-10 | 南京工业大学 | Buffer and energy absorption type web plate reinforced composite material anti-collision device |
| CN204919309U (en) * | 2015-09-07 | 2015-12-30 | 西安中交土木科技有限公司 | Pier adheres to formula consuming excessive quantities of energy and resources safety protection structure |
| CN206337526U (en) * | 2016-12-12 | 2017-07-18 | 中铁二十局集团第三工程有限公司 | A kind of anticollision device of pier based on foamed aluminium |
| CN110258313A (en) * | 2019-07-17 | 2019-09-20 | 安徽省交通勘察设计院有限公司 | A kind of bridge pier protection guard |
| CN110804971A (en) * | 2019-10-18 | 2020-02-18 | 上海市政工程设计研究总院（集团）有限公司 | Highway anti-collision column device and construction method thereof |
| CN111236157A (en) * | 2020-03-09 | 2020-06-05 | 上海市城市建设设计研究总院（集团）有限公司 | Ship collision prevention structure of attached steel concrete composite structure |
| CN112227275A (en) * | 2020-09-30 | 2021-01-15 | 北京工业大学 | Replaceable foam concrete filled honeycomb pier anti-explosion device and mounting method thereof |
| CN113174842A (en) * | 2021-05-26 | 2021-07-27 | 合肥工业大学 | Combined pier crossbeam of split type power consumption antidetonation |
| CN216193974U (en) * | 2021-10-12 | 2022-04-05 | 丛日亮 | Highway bridge is with protection pier |
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Application publication date: 20220830 |