CN111236157A - Ship collision prevention structure of attached steel concrete composite structure - Google Patents
Ship collision prevention structure of attached steel concrete composite structure Download PDFInfo
- Publication number
- CN111236157A CN111236157A CN202010155031.XA CN202010155031A CN111236157A CN 111236157 A CN111236157 A CN 111236157A CN 202010155031 A CN202010155031 A CN 202010155031A CN 111236157 A CN111236157 A CN 111236157A
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- China
- Prior art keywords
- steel
- ship collision
- shell
- collision prevention
- thin steel
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- 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.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- 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
Abstract
The invention discloses a ship collision prevention structure of an attached steel concrete composite structure, which is attached to the outer wall of a pier or a bearing platform at the height of a water surface and comprises one or more units; the unit comprises a shell which is of a box-shaped structure and is made of a strain-reinforced UHPC concrete material; a framework is arranged in a hollow inner cavity of the shell and is filled with foam concrete; the framework comprises a plurality of thin steel pipes and a plurality of steel lattices; the thin steel pipes are arranged in parallel, and the length direction of each thin steel pipe is parallel to the horizontal direction; every two adjacent thin steel pipes are connected by a section steel lattice to form a net structure; and a plurality of cavities formed by the steel lattices and the inner wall of the shell are filled with foam concrete. The application of the invention ensures that the outer surface of the bridge pier anti-ship collision facility has no exposed steel structure, and the foam concrete is filled in the bridge pier anti-ship collision facility, so that the energy dissipation after ship collision can be better improved, the ship collision resistance and the durability of the bridge are improved, and the self-floating of the bridge pier anti-ship collision facility is realized.
Description
Technical Field
The invention relates to the technical field of pier protection, in particular to a ship collision prevention structure of an attached steel concrete composite structure.
Background
A bridge pier ship collision prevention facility is a prior art widely applied to various bridge pier protection. The attached pier ship collision prevention facilities mainly comprise two types of steel and FRP materials.
In practical application, the two pier ship collision prevention facilities have certain defects.
In practical application, the corrosion problem of metal materials is difficult to deal with, maintenance after anti-corrosion paint is scraped is large in workload, and maintenance cost is high.
Although the attached pier ship-collision-prevention facility made of FRP materials solves the corrosion problem, the structure is thin, the collision-prevention performance is limited, the requirement on connection with a bearing platform under the action of wave power is high, and the problem is easy to occur in a water body with large waves.
Therefore, how to reduce the maintenance cost of the attached pier ship collision prevention facility as much as possible on the premise of ensuring the use effect becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above defects of the prior art, the invention provides an attached steel concrete composite structure ship collision prevention structure, which aims to combine the characteristics of the existing two attached pier ship collision prevention facilities made of steel and FRP materials, so that the appearance has no exposed steel structure, the durability is improved, the energy dissipation after ship collision can be better improved by filling foam concrete in the bridge pier ship collision prevention facility, the daily maintenance work is simplified, the maintenance cost is reduced, the ship collision prevention performance and the durability of the bridge are improved, and meanwhile, the self-floating of the pier ship collision prevention facility is realized, and the installation and the connection are more convenient.
In order to achieve the purpose, the invention discloses a ship collision prevention structure of an attached steel reinforced concrete composite structure, which is attached to the outer wall of a pier or a bearing platform at the water surface height and comprises one or more units.
The unit comprises a shell which is of a box-shaped structure and is made of a strain-reinforced UHPC concrete material;
a framework is arranged in a hollow inner cavity of the shell and is filled with foam concrete;
the framework comprises a plurality of thin steel pipes and a plurality of steel lattices;
the thin steel pipes are arranged in parallel, and the length direction of each thin steel pipe is parallel to the horizontal direction;
every two adjacent thin steel pipes are connected through the section steel lattice to form a net structure;
and a plurality of cavities enclosed by the section steel lattices and the inner wall of the shell are filled with foam concrete.
Preferably, the shell is prefabricated by adopting a thin steel bar mesh to pour a strain-reinforced UHPC concrete material.
More preferably, each of the thin steel pipes and/or each of the steel section lattices which are in contact with the mesh of the steel reinforcement is connected to the corresponding mesh of the steel reinforcement by welding or bolting.
More preferably, the housing comprises two side plates, two end plates, a top plate and a bottom plate which are connected through a cast-in-place wet joint section.
More preferably, rubber protective strings are arranged on the side plates on the two sides; the side plates facing the bearing platform in the side plates at two sides are inner side plates, and the side plates facing away from the bearing platform are outer side plates.
Preferably, the length of the housing is 6 to 10 meters.
The invention has the beneficial effects that:
the invention combines the characteristics of the existing two attached pier anti-ship collision facilities made of steel and FRP materials, so that the appearance has no exposed steel structure, the durability is improved, the energy dissipation after ship collision can be better improved by filling foam concrete in the pier anti-ship collision facilities, the daily maintenance work is simplified, the maintenance cost is reduced, the ship collision resistance and the durability of the bridge are improved, meanwhile, the pier anti-ship collision facilities are self-floating, and the installation and the connection are more convenient.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic view illustrating a structure of the present invention attached to a pier or a cap.
FIG. 2 is a schematic diagram of an embodiment of the present invention in which a plurality of cells are integrally connected to each other.
Fig. 3 is a partially enlarged schematic structural diagram of a connection structure of a mesh of reinforcing steel bars and a steel section lattice according to an embodiment of the present invention.
Detailed Description
Examples
As shown in fig. 1 and 2, the attached steel reinforced concrete composite structure ship collision prevention structure is attached to an outer wall of a pier or a cap 1 at a water surface level and includes one or more units.
The unit comprises a shell which is of a box-shaped structure and is made of a strain-reinforced UHPC concrete material;
a framework is arranged in a hollow inner cavity of the shell and is filled with foam concrete 7;
the framework comprises a plurality of thin steel pipes 8 and a plurality of steel lattices 9;
the thin steel pipes 8 are arranged in parallel, and the length direction of each thin steel pipe 8 is parallel to the horizontal direction;
every two adjacent thin steel pipes 8 are connected by a section steel lattice 9 to form a net structure;
and a plurality of cavities formed by the steel lattices 9 and the inner wall of the shell are filled with foam concrete 7.
The principle of the invention is as follows:
by utilizing the characteristics of high strength and high toughness of the UHPC concrete material, the ship collision prevention structure is elastic and intact under small impact force, and the ship collision prevention structure cannot be greatly damaged by conventional scraping of a ship.
Under the action of large impact force, the shell made of UHPC concrete material can disperse the point action to a larger deformation range, the foam concrete 7 and the hollow inner cavity of the shell form rigidity equivalent to the part of the ship body to be damaged, and the impact load acting on the bridge pier or the bearing platform 1 is reduced.
The hollow cavity in each thin steel pipe 8 can achieve the purpose of reducing weight, and each thin steel pipe 8 can consume energy through deformation under large impact force.
The shell made of UHPC concrete material is an outward convex fold line shape or an outward convex curved surface, has smaller horizontal rigidity, and can generate larger deformation to dissipate impact energy under the action of the impact force of the ship.
A plurality of thin steel pipes 8 and a plurality of steel lattices 9 form a skeleton of a net structure, and a plurality of cavities enclosed by the steel lattices 9 and the inner wall of the shell are filled with foam concrete 7.
The system realizes the dissipation of impact energy through the deformation of a plurality of thin steel pipes 8, a plurality of section steel lattices 9 and a shell made of UHPC concrete material and the crushing of foam concrete 7 under the impact force of a ship.
In some embodiments, the shell is prefabricated using a thin mesh of steel 10 cast with a strain-strengthened UHPC concrete material, as shown in fig. 3.
In some embodiments, each thin steel tube 8 and/or each steel lattice 9 in contact with a mesh of rebar 10 is connected to the respective mesh of rebar 10 by welding or bolting.
In some embodiments, the housing comprises two side panels, two end panels, a top panel 5 and a bottom panel 6, joined by a cast-in-place wet joint.
In some embodiments, the rubber guard strings 2 are arranged on the side plates on the two sides; of the side plates on both sides, the side plate facing the platform 1 is an inner side plate 4, and the side plate facing away from the platform 1 is an outer side plate 3.
In certain embodiments, the length of the housing is 6 meters to 10 meters.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. The ship collision prevention structure of the attached steel concrete composite structure is attached to the outer wall of a pier or a bearing platform (1) at the height of a water surface and comprises one or more units; the method is characterized in that:
the unit comprises a shell which is of a box-shaped structure and is made of a strain-reinforced UHPC concrete material;
a framework is arranged in a hollow inner cavity of the shell and is filled with foam concrete (7);
the framework comprises a plurality of thin steel pipes (8) and a plurality of steel lattices (9);
the thin steel pipes (8) are arranged in parallel, and the length direction of each thin steel pipe (8) is parallel to the horizontal direction;
every two adjacent thin steel pipes (8) are connected through the section steel lattice (9) to form a net structure;
and a plurality of cavities formed by the steel section lattices (9) and the inner wall of the shell are filled with foam concrete (7).
2. The attachment type steel reinforced concrete composite structure ship collision prevention structure as claimed in claim 1, wherein the outer shell is prefabricated by pouring strain-reinforced UHPC concrete material through a thin steel mesh (10).
3. The attachment type steel reinforced concrete composite structure ship collision prevention structure according to claim 2, wherein each of the thin steel pipes (8) and/or each of the steel section lattices (9) in contact with the fine steel mesh sheets (10) is connected with the respective fine steel mesh sheets (10) by welding or bolting.
4. The structure of claim 2, wherein the outer hull comprises two side panels, two end panels, a top panel (5) and a bottom panel (6), which are connected by a cast-in-place wet joint.
5. The attached steel reinforced concrete composite structure ship collision prevention structure as claimed in claim 4, wherein rubber protective strings (2) are arranged on the side plates on both sides; the side plates on the two sides facing the bearing platform (1) are inner side plates (4), and the side plates back to the bearing platform (1) are outer side plates (3).
6. The attachment type steel reinforced concrete composite structure ship collision prevention structure according to claim 1, wherein the length of the outer shell is 6 to 10 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155031.XA CN111236157A (en) | 2020-03-09 | 2020-03-09 | Ship collision prevention structure of attached steel concrete composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010155031.XA CN111236157A (en) | 2020-03-09 | 2020-03-09 | Ship collision prevention structure of attached steel concrete composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111236157A true CN111236157A (en) | 2020-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010155031.XA Pending CN111236157A (en) | 2020-03-09 | 2020-03-09 | Ship collision prevention structure of attached steel concrete composite structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111236157A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813804A (en) * | 2020-12-31 | 2021-05-18 | 山西省交通科技研发有限公司 | Underwater pier protection system based on solid waste recycling |
| CN114960431A (en) * | 2022-05-12 | 2022-08-30 | 西南交通大学 | Grid type steel-foamed aluminum combined anti-impact device and construction method thereof |
-
2020
- 2020-03-09 CN CN202010155031.XA patent/CN111236157A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112813804A (en) * | 2020-12-31 | 2021-05-18 | 山西省交通科技研发有限公司 | Underwater pier protection system based on solid waste recycling |
| CN114960431A (en) * | 2022-05-12 | 2022-08-30 | 西南交通大学 | Grid type steel-foamed aluminum combined anti-impact device and construction method thereof |
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