CN110409286B

CN110409286B - Offshore floating bridge assembled by foamed ceramic structure

Info

Publication number: CN110409286B
Application number: CN201910722697.6A
Authority: CN
Inventors: 黄俊红; 章光; 罗忆; 李新平; 宋凯文
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-06-09
Anticipated expiration: 2039-08-06
Also published as: CN110409286A

Abstract

The invention discloses an offshore pontoon bridge assembled by a foamed ceramic structure, which comprises the foamed ceramic structure, wherein the main structure of the offshore pontoon bridge is the foamed ceramic structure, and rock ribs, rock rings, rock buckles and rock chains are adopted for connection among the foamed ceramic structures; the contact position of adjacent foamed ceramic structure adopts the rubber sleeve as crashproof material, adopt the mode of cup jointing between rubber sleeve and the foamed ceramic structure for guarantee the steadiness of connecting. The offshore floating bridge provided by the invention can float up and down along with the sea level, can be assembled and disassembled repeatedly, can be recycled, saves resources and protects the environment.

Description

Offshore floating bridge assembled by foamed ceramic structure

Technical Field

The invention belongs to the technical field of bridge engineering, relates to an offshore pontoon, and particularly relates to an offshore pontoon assembled by a foamed ceramic structure.

Background

Because of the large buoyancy characteristic of the High Density Polyethylene (HDPE) pontoon and the difficult deformation, the existing offshore pontoon bridge is formed by assembling and connecting the HDPE pontoon by using a high density polyethylene material. However, high-density polyethylene belongs to a chemical polymer synthetic material, and can be aged in the use process of people and under the comprehensive influence of natural environments such as sunlight irradiation, cold and hot alternation, seawater erosion and the like, so that the high-density polyethylene is inconvenient to use in a large area for a long time, and cannot be directly degraded in the natural environment after being discarded, so that the natural environment is polluted.

The existing offshore floating bridge and platform materials are greatly influenced by the environment, the service life is short, most of the volume is exposed above the sea level due to the overlarge buoyancy, the existing offshore floating bridge and platform materials are not stable enough under the action of sea wind and sea waves, a complex fixing device needs to be manufactured, and the applicability of the existing offshore floating bridge and platform materials is greatly limited.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an offshore pontoon assembled by a foamed ceramic structure, which mainly solves the problems that when the water depth near part of the coast is not enough, a ship or a yacht on the sea surface cannot be landed, and the offshore pontoon needs to be manufactured to moor the ship and allow people to walk to the shore. The material mainly used in the invention is foamed ceramic, and because the foamed ceramic has stable property and is slightly influenced by natural environment, the problem of aging of the high-density polyethylene buoy along with time can be solved, and the service life of the structure can be greatly prolonged; and no special device is needed for fixedly connecting, the assembly is convenient, and the material is saved.

The foam ceramic material has good corrosion resistance, so that the foam ceramic material can resist the corrosion action of seawater; the special quadrangular pyramid shape structure and the assembly mode can resist larger wind waves on the sea surface, can also ensure stable characteristics in the long-term wind-blowing and sun-drying environment, and cannot pollute the environment. The offshore floating bridge provided by the invention can float up and down along with the sea level, can be assembled and disassembled repeatedly, can be recycled, saves resources and protects the environment.

Therefore, the invention adopts the following technical scheme:

an offshore pontoon bridge assembled by a foamed ceramic structure comprises the foamed ceramic structure, wherein the main structure of the offshore pontoon bridge is the foamed ceramic structure, and rock ribs, rock rings, rock buckles and rock chains are connected among the foamed ceramic structures; the contact position of adjacent foamed ceramic structure adopts the rubber sleeve as crashproof material, adopt the mode of cup jointing between rubber sleeve and the foamed ceramic structure for guarantee the steadiness of connecting.

Preferably, the foamed ceramic structure is formed by integrally pouring two layers of stepped flat cuboids with square bottom surfaces and an inverted quadrangular pyramid; the rubber sleeve and the foamed ceramic structure are in a sleeving mode similar to that between a tire and a wheel, and the rubber sleeve is of a closed integral structure and is sleeved with the stepped flat cuboid on the upper half part of the foamed ceramic structure.

Preferably, the height of the quadrangular pyramid in the foamed ceramic structure is 2 times higher than that of the stepped flat cuboid.

Preferably, the rock ribs, the rock rings, the rock buckles and the rock chains are all made of basalt fibers; the rock ribs are pre-embedded at corresponding positions on the quadrangular pyramids at the lower half part of the foamed ceramic structure, so that the rock ribs and the foamed ceramic structure are poured into a whole; and connecting rock rings to the end parts of the rock ribs before the rock ribs are embedded in the foamed ceramic structure.

Preferably, the rock muscle is the cross and arranges, and crisscross both sides coincide with the central line of the bottom surface square of the flat cuboid of notch cuttype above the ceramic foam structure respectively.

Preferably, each ceramic foam structure is flexibly connected with the rock ring on the two adjacent ceramic foam structures through a rock buckle and a rock chain.

Preferably, the connection length of the rock buckle and rock chain combination is controlled to be equal to the distance between the rock rings butted on the adjacent foamed ceramic structures.

Preferably, anchor piles are arranged at the coast and the arrangement area of the floating bridge in the shallow sea area, and the anchor piles are connected with a rock ring on the foamed ceramic structure by rock buckles and rock chains for fixing the floating bridge on the sea at a specific position.

Preferably, the surface of the offshore pontoon is paved with terylene cloth, and the terylene cloth covers the whole surface of the offshore pontoon.

Preferably, the edge of the polyester fabric is provided with a plurality of steel rings, and the steel rings are connected with the rock ring on the outermost edge of the offshore pontoon through rock buckles and rock chains to form an integral structure.

Compared with the prior art, the invention has the beneficial effects that:

(1) the floating bridge is mainly assembled by a plurality of foamed ceramic structures, and the ceramic material and the basalt material have stable properties in natural environment, so that the manufactured finished product can be used for at least 100 years or even more than hundreds of years, the service life of the manufactured finished product is longer than that of a buoy material with the service life of about 15 years on the market at present, and toxic and harmful chemical substances cannot be generated in the using process or after the manufactured finished product is discarded.

(2) The operation process of disassembling and assembling the floating bridge structure is simple and easy, the flexibility is high, and a complex fixing device is not required to be built; if the coastal area where the floating bridge is built has other purposes in the future, the disassembled single foamed ceramic structure can be assembled and reused in other places for many times. In the long run, not only the resources and the cost are greatly saved, but also the environment is protected, and the method meets the relevant requirements of national sustainable development.

(3) Because of the particularity of the floating bridge structure, the gravity center of the floating bridge structure is downward along the vertex of the quadrangular pyramid, the floating bridge structure can be placed in water to ensure that the upper flat cuboid platform stably floats above the sea level, and the adjacent single structures are flexibly connected, so that the floating bridge structure is less prone to being overturned integrally under the action of wind waves, and has higher safety and stronger applicability compared with the existing floating bridge structure on the market.

Drawings

FIG. 1 is a top view of an offshore pontoon assembled with a ceramic foam structure according to the invention.

FIG. 2 is a schematic view of structural connection of an offshore pontoon assembled by a ceramic foam structure provided by the invention.

FIG. 3 is a schematic cross-sectional view of F-F of FIG. 2 illustrating an offshore pontoon assembled with a ceramic foam structure according to the present invention.

FIG. 4 is a top view of a ceramic foam structure.

FIG. 5 is a side view of a ceramic foam structure.

Fig. 6 is a plan view of the rubber boot.

Fig. 7 is a schematic view of the structure of section a-a in fig. 6.

FIG. 8 is a top view of the ceramic foam structure after attachment to a rubber sleeve.

Fig. 9 is a schematic view of the sectional structure B-B, C-C in fig. 8.

Fig. 10 is a schematic view of the cross-sectional structure D-D, E-E of fig. 8.

Figure 11 is a schematic view of the connection of a tendon to a rock formation.

Figure 12 is a schematic view of the connection between the rock buckle and the rock chain and the rock collar.

FIG. 13 is a schematic view of the laying of a polyester fabric.

Fig. 14 is a schematic view of the G-G sectional structure in fig. 13.

Description of reference numerals: 1. a ceramic foam structure; 2. a rubber sleeve; 3. reinforcing rock; 4. a rock ring; 5. buckling rocks; 6. a rock chain; 7. anchoring piles; 8. polyester fabric; 9. and (5) steel rings. In addition, the capital letters marked after the numbers only indicate the serial numbers of the components, and for the convenience of distinction, the components are the same, for example, 1A, 1B and 1C all indicate the ceramic foam structure 1, and the rest of the similar reference numbers are the same. The dimensions in mm in the drawings are merely for convenience in explaining the connection and nesting relationship between various materials, and are not limited to the structure of one dimension.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are provided for illustration only and are not to be construed as limiting the invention.

As shown in fig. 1-3, the invention discloses an offshore pontoon bridge assembled by a foamed ceramic structure, which comprises foamed ceramic structures 1, wherein the main structure of the offshore pontoon bridge is the foamed ceramic structure 1, and rock ribs 3, rock rings 4, rock buckles 5 and rock chains 6 are adopted to connect the foamed ceramic structures 1; the contact position of adjacent foamed ceramic structure 1 adopts rubber sleeve 2 as crashproof material, adopt the mode of cup jointing between rubber sleeve 2 and the foamed ceramic structure 1 for guarantee the steadiness of connecting.

Specifically, as shown in fig. 4 and 5, the ceramic foam structure 1 is integrally cast by two layers of stepped flat cuboids with square bottom surfaces and an inverted quadrangular pyramid; the rubber sleeve 2 and the foamed ceramic structure 1 adopt a similar sleeving mode between a tire and a wheel, and the rubber sleeve 2 is of a closed integral structure and is sleeved with the stepped flat cuboid at the upper half part of the foamed ceramic structure 1. As shown in fig. 6-10.

Specifically, the height of the quadrangular pyramid in the ceramic foam structure 1 is 2 times higher than that of the stepped flat rectangular parallelepiped.

Specifically, the rock reinforcement 3, the rock ring 4, the rock buckle 5 and the rock chain 6 are all made of basalt fibers; the rock reinforcement 3 is pre-embedded in the corresponding position of the quadrangular pyramid on the lower half part of the foamed ceramic structure 1, so that the rock reinforcement and the foamed ceramic structure 1 are cast into a whole; before the reinforcing bars 3 are pre-embedded in the ceramic foam structure 1, a rock ring 4 is connected to each end of the reinforcing bars 3. As shown in fig. 11.

Specifically, the rock reinforcement 3 is the cross and arranges that crisscross both sides coincide with the central line of the bottom surface square of the flat cuboid of notch cuttype above the ceramic foam structure 1 respectively.

Specifically, each ceramic foam structure 1 is flexibly connected with the rock ring 4 on two adjacent ceramic foam structures 1 through a rock buckle 5 and a rock chain 6. As shown in fig. 12.

Specifically, the connection length of the rock buckle 5 and the rock chain 6 combination is controlled to be equal to the distance between the rock rings 4 butted on the adjacent foamed ceramic structures 1.

Specifically, anchor piles 7 are arranged on the coast and the arrangement area of the floating bridge in the shallow sea area, and the anchor piles 7 are connected with rock rings 4 on the foamed ceramic structure 1 by adopting rock buckles 5 and rock chains 6 and used for fixing the floating bridge on the sea at a specific position.

Specifically, as shown in fig. 13, a surface of the offshore pontoon is laid with a terylene fabric 8, and the terylene fabric 8 covers the entire surface of the offshore pontoon.

Specifically, as shown in fig. 13 and 14, a plurality of steel rings 9 are arranged on the edge of the polyester fabric 8, and the steel rings 9 are connected with the rock ring 4 on the outermost edge of the offshore pontoon through rock buckles 5 and rock chains 6 to form an integral structure.

Examples

An offshore pontoon bridge assembled by a foamed ceramic structure comprises a foamed ceramic structure 1, a rubber sleeve 2, a rock rib 3, a rock ring 4, a rock buckle 5, a rock chain 6, an anchor pile 7, polyester fabric 8 and a steel ring 9; the main structure is a foamed ceramic structure 1, and rock ribs 3, rock rings 4, rock buckles 5 and rock chains 6 made of basalt fibers are connected among the foamed ceramic structures 1. Because the foamed ceramics belongs to brittle materials, the rubber sleeve 2 is adopted as an anti-collision material at the contact part of the adjacent foamed ceramic structures 1, and the rubber sleeve 2 and the foamed ceramic structures 1 adopt a sleeving mode similar to that between a tire and a wheel, thereby ensuring the connection stability.

The foamed ceramic structure 1 is formed by integrally casting two layers of flat cuboids with square bottom surfaces on the upper surface and an inverted quadrangular pyramid, and the top view and the side view of the foamed ceramic structure are respectively shown in fig. 4 and fig. 5. The gravity center of the foamed ceramic structure 1 is downward along the vertex of the quadrangular pyramid, and when the quadrangular pyramid is placed into water downwards, the flat cuboid platform can be guaranteed to float on the water surface stably.

The shape and the size of the rubber sleeve 2 are as shown in fig. 6 and 7, and the rubber sleeve is manufactured into a closed integral structure, so that the rubber sleeve can be conveniently sleeved with the flat cuboid at the upper half part of the foamed ceramic structure 1, and the adjacent foamed ceramic structures 1 are ensured not to be damaged due to direct collision. If the rubber material is aged due to overlong service time, the rubber material can be removed and replaced by a new rubber sleeve material, so that the foamed ceramic structure 1 is ensured to be used for more than one hundred years.

Fig. 8 is an integrated view of the socket connection between the ceramic foam structure 1 and the rubber sleeve 2, and it can be seen from the two cross-sectional views of fig. 9 and 10 that when the quadrangular pyramid of the lower half portion of the ceramic foam structure 1 is prefabricated, the basalt bars 3 are pre-embedded at corresponding positions in advance, so that the basalt bars and the ceramic foam structure 1 are cast and cured into a whole, and the size of the pre-embedded positions is as shown in the cross-sectional views of fig. 9 and 10. Before the basalt bars 3 are pre-embedded in the foamed ceramic structure 1, the basalt rings 4 need to be connected to all the end parts of the basalt bars 3, the size and the connection mode of the basalt bars 3 and the basalt rings 4 are shown in fig. 11, and the integrity between the basalt bars 3 and the foamed ceramic structure 1 is ensured.

The foamed ceramic structures 1 are flexibly connected with each other, and are connected with the basalt rings 4 on the two adjacent foamed ceramic structures 1 through basalt buckles 5 and basalt chains 6, as shown in fig. 12.

The splicing mode of the foamed ceramic structure 1 in seawater is shown in figure 2, and the density of the adopted foamed ceramic material is 0.4kg/m³When the foamed ceramic structure 1 is placed in water, the volume V of the structure floating above the water surface can be calculated_SStructural volume V below water surface_X1.5: 1. In order to ensure the bearing capacity and stability of the ceramic foam structure 1, the height of the quadrangular pyramid is set to be 2 times that of the flat cuboid, so that the volume of the flat cuboid is about 1.5 times that of the quadrangular pyramid, the flat cuboid structure is ensured to be exposed above the water surface as much as possible, and the quadrangular pyramid is below the water surface, as shown in fig. 2. Through calculation, one foamed ceramic structure 1 can just bear the same weight of an object, and the object is ensured to be above the sea level. Therefore, according to the size of the ceramic foam structure 1, the size of one ceramic foam structure 1The weight is 66.8kg, and the weight of a bearable object is also 66.8 kg.

In order to enhance the stability of the whole structure, the distance between the basalt button 5 and the basalt chain 6 combination is equal to that between the basalt button and the basalt ring 4 which is butted on the adjacent foamed ceramic structure 1 by controlling the connection length, as shown in fig. 1, the motion frequency of the connected foamed ceramic structures 1 under the action of wind waves is ensured to be consistent, and the adjacent foamed ceramic structures 1 are ensured not to be damaged due to collision. And meanwhile, driving anchor piles 7 at the coast and the arrangement area of the floating bridge in the shallow sea area, and connecting the anchor piles 7 with basalt rings 4 on the foamed ceramic structure 1 by adopting basalt buckles 5 and basalt chains 6 so as to fix the foamed ceramic floating bridge structure at a specific position.

Because the terylene fabric 8 is firm and easy to clean, the terylene fabric can be laid on the surface of the foam ceramic pontoon, and the steel ring 9 is added on the edge of the fabric in advance, as shown in fig. 13, the steel ring 9 is connected with the basalt ring 4 on the outermost edge of the pontoon structure through the basalt buckle 5 and the basalt chain 6, as shown in fig. 14, an integral structure is formed, which is not only beneficial to the walking of personnel and the transportation of vehicles, but also convenient for the cleaning treatment of the surface of the pontoon structure at the later stage.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.

Claims

1. An offshore pontoon bridge assembled by ceramic foam structures, comprising a ceramic foam structure (1), characterized in that: the main structure of the offshore floating bridge is a foamed ceramic structure (1), and the foamed ceramic structures (1) are connected by rock ribs (3), rock rings (4), rock buckles (5) and rock chains (6); the rubber sleeve (2) is adopted as an anti-collision material at the contact part of the adjacent foamed ceramic structures (1), and the rubber sleeve (2) and the foamed ceramic structures (1) are sleeved to ensure the connection stability; the foamed ceramic structure (1) is formed by integrally pouring two layers of stepped flat cuboids with square bottom surfaces and an inverted quadrangular pyramid; the rubber sleeve (2) and the foamed ceramic structure (1) adopt a similar sleeving mode between a tire and a wheel, and the rubber sleeve (2) is of a closed integral structure and is sleeved with the stepped flat cuboid on the upper half part of the foamed ceramic structure (1); the rock reinforcement (3), the rock ring (4), the rock buckle (5) and the rock chain (6) are all made of basalt fibers; the rock reinforcement (3) is pre-embedded at a corresponding position on a quadrangular pyramid at the lower half part of the foamed ceramic structure (1) so as to be poured into a whole with the foamed ceramic structure (1); connecting rock rings (4) to each end of the rock bar (3) before the rock bar (3) is embedded in the foamed ceramic structure (1); each foamed ceramic structure (1) is flexibly connected with each other and is respectively connected with the rock ring (4) on the two adjacent foamed ceramic structures (1) through a rock buckle (5) and a rock chain (6).

2. An offshore pontoon constructed of ceramic foam structures as claimed in claim 1, wherein: the height of the quadrangular pyramid in the foamed ceramic structure (1) is 2 times higher than that of the stepped flat cuboid.

3. An offshore pontoon constructed of ceramic foam structures as claimed in claim 1, wherein: the rock reinforcement (3) is arranged in a cross shape, and two sides of the cross shape coincide with the central line of the square on the bottom surface of the stepped flat cuboid above the foamed ceramic structure (1) respectively.

4. An offshore pontoon constructed of ceramic foam structures as claimed in claim 1, wherein: the distance between the rock buckle (5) and the rock chain (6) which are combined is equal to the distance between the rock buckle and the rock ring (4) which is butted on the adjacent foamed ceramic structure (1).

5. An offshore pontoon constructed of ceramic foam structures as claimed in claim 1, wherein: the floating bridge arrangement area on the coast and the shallow sea area is provided with anchor piles (7), and the anchor piles (7) are connected with rock rings (4) on the foamed ceramic structure (1) by adopting rock buckles (5) and rock chains (6) for fixing the floating bridge on the sea at a specific position.

6. An offshore pontoon assembled as claimed in any one of claims 1 to 5, wherein: and the surface of the offshore pontoon bridge is paved with polyester fabric (8), and the polyester fabric (8) covers the whole surface of the offshore pontoon bridge.

7. An offshore pontoon constructed of ceramic foam structures as claimed in claim 6, wherein: the edge of the polyester fabric (8) is provided with a plurality of steel rings (9), and the steel rings (9) are connected with the rock ring (4) on the outermost edge of the offshore pontoon through the rock buckles (5) and the rock chains (6) to form an integral structure.