CN214061511U

CN214061511U - Steel-UHPC combined anti-collision buoyancy tank

Info

Publication number: CN214061511U
Application number: CN202023060724.5U
Authority: CN
Inventors: 荆国强; 王梓宇; 马海英; 李清岭; 王君杰; 汪正兴; 王翔; 马长飞; 刘鹏飞
Original assignee: Tongji University; China Railway Major Bridge Engineering Group Co Ltd MBEC; China Railway Bridge Science Research Institute Ltd
Current assignee: Tongji University; China Railway Major Bridge Engineering Group Co Ltd MBEC; China Railway Bridge Science Research Institute Ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-27
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a steel-UHPC combination formula anticollision flotation tank relates to bridge crashproof floating device technical field, and this anticollision flotation tank includes a plurality of anticollision flotation tank units, and a plurality of anticollision flotation tank units link to each other in proper order and form the loop configuration that is used for surrounding the pier, every anticollision flotation tank unit all includes first steel case and second steel case, the second steel case is established first steel case is peripheral, the second steel case with leave the clearance between the first steel case, the clearance intussuseption is filled with ultra high performance concrete UHPC in order to form the UHPC box. The embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank the second steel case with clearance intussuseption between the first steel case is filled with ultra high performance concrete UHPC and forms UHPC box 3, and UHPC box 3 can full play UHPC rigidity big, bearing capacity is strong, advantage such as the durability is good for anticollision flotation tank non-deformable. When boats and ships bump the anticollision flotation tank, the bow can not be absorbed in the anticollision flotation tank, more can not take place local damage, and the water tightness is good.

Description

Steel-UHPC combined anti-collision buoyancy tank

Technical Field

The utility model relates to a bridge crashproof floating device technical field, in particular to steel-UHPC combination formula anticollision flotation tank.

Background

The bridge pier is a structure for supporting a bridge span structure and transmitting constant load and vehicle live load to a foundation, and for a bridge across a river or sea, an anti-collision facility needs to be considered, so that the bridge pier is protected from being damaged by collision, and further the collapse of the upper structure of the bridge caused by the damage of the bridge pier is avoided.

At present, an anti-collision facility mainly comprises a floating device and a fixed device, the floating device has stronger adaptability to the conditions of obvious water level change, large tidal range and the like compared with the fixed device, and meanwhile, the construction cost is relatively low. The steel box type floating device is common in the floating devices, the steel mechanical property is stable, and the related technology process is mature, so the steel type floating device is widely applied in recent years.

However, the steel tank type floating device has the following problems in use: after the steel box type floating device is impacted by a ship, the steel box type floating device is easy to deform, the bow of the ship can be sunk into the anti-collision floating box, the ship is influenced to continue running, or the steel box type floating device is locally damaged under impact, the water tightness of the device is caused to lose efficacy, and a water body is filled into the box body, so that the device is possibly sunk into water and seriously lost. Therefore, the anti-collision rigidity of the existing steel box type floating device is difficult to meet the actual application requirement.

Disclosure of Invention

The embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank to solve the not enough technical problem of crashproof rigidity of steel case class floating device among the correlation technique.

The embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank, include:

a plurality of anticollision flotation tank units, it links to each other in proper order and forms the loop configuration who is used for surrounding the pier, every the anticollision flotation tank unit all includes:

-a first steel box;

-a second steel box provided at the periphery of the first steel box, leaving a gap between the second steel box and the first steel box, the gap being filled with ultra high performance concrete UHPC to form a UHPC box.

In some embodiments, a plurality of shear nails are arranged on the outer side of the first steel box.

In some embodiments, each of the crash buoy units further comprises:

and the third steel box is arranged inside the first steel box, and a plurality of reinforcing ribs are connected between the third steel box and the first steel box.

In some embodiments, the first, second and third steel boxes are all made of titanium steel plate.

In some embodiments, a plurality of energy absorption bases are connected to the side surface, close to the bridge pier, of the second steel box.

In some embodiments, each of the crash buoy units further comprises:

and the mounting plates are in one-to-one correspondence with the energy-absorbing bases and connected with each other, and each mounting plate is correspondingly provided with a bolt hole on the side surface of the first steel box close to the pier.

In some embodiments, the energy absorbing mount is a corrugated cylinder of circular or square cross-section.

In some embodiments, the energy absorbing base is made of mild steel.

In some embodiments, the energy absorbing mount is made of rubber.

In some embodiments, the thickness of the UHPC box is not less than 70 mm.

The utility model provides a beneficial effect that technical scheme brought includes:

the embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank, including a plurality of anticollision flotation tank units, every anticollision flotation tank unit is all through setting up first steel case and second steel case, and the second steel case with clearance intussuseption between the first steel case is filled with ultra high performance concrete UHPC, forms the UHPC box behind the ultra high performance concrete UHPC shaping, can full play UHPC rigidity big, bearing capacity is strong, advantage such as the durability is good for anticollision flotation tank non-deformable. When boats and ships bump the anticollision flotation tank, the bow can not be absorbed in the anticollision flotation tank, more can not take place local damage, and the water tightness is good.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of 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 top view of a steel-UHPC combined anti-collision pontoon according to an embodiment of the present invention;

fig. 2 is an end view of a steel-UHPC combined anti-collision pontoon according to an embodiment of the present invention;

in the figure: 1. an anti-collision buoyancy tank unit; 11. a first steel box; 12. a second steel box; 13. a UHPC cabinet; 14. shear nails; 15. a third steel box; 16. a reinforcing rib; 17. an energy absorbing base; 18. mounting a plate; 2. provided is a bridge pier.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank, it can solve the not enough technical problem of anticollision rigidity of current steel case class floating device.

Referring to fig. 1 and 2, the steel-UHPC combined anti-collision pontoon comprises a plurality of anti-collision pontoon units 1. The anti-collision buoyancy tank units 1 are sequentially connected to form an annular structure used for surrounding a pier 2, each anti-collision buoyancy tank unit 1 comprises a first steel tank 11 and a second steel tank 12, the second steel tanks 12 are arranged on the periphery of the first steel tanks 11, gaps are reserved between the second steel tanks 12 and the first steel tanks 11, and ultra-high-performance concrete UHPC is filled in the gaps to form UHPC box bodies 13. Preferably, the thickness of said UHPC box 13 is not less than 70 mm.

Compared with the prior art, the embodiment of the utility model provides a steel-UHPC combination formula anticollision flotation tank, including a plurality of anticollision flotation tank unit 1, every anticollision flotation tank unit 1 is all through setting up first steel case 11 and second steel case 12, and second steel case 12 with clearance intussuseption between the first steel case 11 is filled with ultra high performance concrete UHPC, forms UHPC box 13 behind the ultra high performance concrete UHPC shaping, can full play UHPC rigidity big, bearing capacity advantage such as strong, the durability is good for anticollision flotation tank non-deformable. When boats and ships bump the anticollision flotation tank, the bow can not be absorbed in the anticollision flotation tank, more can not take place local damage, and the water tightness is good.

As an alternative embodiment, referring to fig. 1, a plurality of shear nails 14 are provided outside the first steel box 11, and the plurality of shear nails 14 are used for fixing the formed UHPC box body 13, so as to further improve the rigidity of the UHPC box body 13.

As an alternative embodiment, referring to fig. 1, each anti-collision pontoon unit 1 further includes a third steel box 15, the third steel box 15 is disposed inside the first steel box 11, a plurality of reinforcing ribs 16 are connected between the third steel box 15 and the first steel box 11, and the plurality of reinforcing ribs 16 can reinforce the rigidity of the first steel box 11.

As an alternative embodiment, the first steel tank 11, the second steel tank 12 and the third steel tank 15 are all made of titanium steel plates. Because anticollision flotation tank floats on the surface of water for a long time, also exposes in atmospheric environment, and titanium steel plate surface is bright and clean, has higher plasticity, toughness and mechanical strength, and the corruption of acid-resistant, alkaline gas, solution and other medium, long service life increases the utility model discloses an anticollision flotation tank's reliability.

As an alternative embodiment, referring to fig. 1, a plurality of energy-absorbing bases 17 are connected to the side surface of the second steel box 12 close to the pier 2, and the plurality of energy-absorbing bases 17 can buffer the impact force, reduce the impact of the anti-collision buoyancy tank on the pier 2, and protect the pier 2. Preferably, the energy absorbing mount 17 is a corrugated cylinder of circular or square cross-section.

As an alternative embodiment, referring to fig. 1, each anti-collision buoyancy tank unit 1 further includes a plurality of mounting plates 18, the mounting plates 18 are in one-to-one correspondence with the energy-absorbing bases 17 and are connected to the energy-absorbing bases, and bolt holes are correspondingly formed in the mounting plates 18 and the side surfaces of the first steel tanks 11 close to the bridge piers 2. Each mounting plate 18 is connected with one energy-absorbing base 17, and each mounting plate 18 and first steel box 11 can pass through bolt hole quick assembly disassembly, convenient to use.

As an alternative embodiment, the energy absorbing mount 17 is made of mild steel. The mild steel has lower strength and hardness and better plasticity and toughness, and can effectively buffer the impact force of the ship.

As an alternative embodiment, the energy absorbing mount 17 is made of rubber. The rubber is a high-elasticity polymer material, can be recovered after external force is removed, and can also effectively buffer the impact force of the ship.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel-UHPC combined anti-collision buoyancy tank is characterized by comprising:

a plurality of anticollision flotation tank unit (1), its consecutive formation is used for surrounding the loop configuration of pier (2), every anticollision flotation tank unit (1) all includes:

-a first steel box (11);

-a second steel box (12) arranged at the periphery of the first steel box (11), leaving a gap between the second steel box (12) and the first steel box (11), the gap being filled with ultra high performance concrete, UHPC, to form a UHPC box body (13).

2. The steel-UHPC combined anti-collision buoyancy tank of claim 1, characterized in that: the outer side of the first steel box (11) is provided with a plurality of shear nails (14).

3. A combined steel-UHPC crash buoy according to claim 1, characterized in that each crash buoy unit (1) further comprises:

and the third steel box (15) is arranged inside the first steel box (11), and a plurality of reinforcing ribs (16) are connected between the third steel box (15) and the first steel box (11).

4. The steel-UHPC combined crash-proof pontoon according to claim 3, characterized in that:

the first steel box (11), the second steel box (12) and the third steel box (15) are all made of titanium steel plates.

5. The steel-UHPC combined anti-collision buoyancy tank of claim 1, characterized in that:

and the side surface of the second steel box (12) close to the pier (2) is connected with a plurality of energy absorption bases (17).

6. A steel-UHPC combined crash pontoon according to claim 5, characterized in that each crash pontoon unit (1) further comprises:

a plurality of mounting panels (18), it is with a plurality of energy-absorbing base (17) one-to-one and connection, every mounting panel (18) with all correspond on first steel box (11) are close to the side of pier (2) and are equipped with the bolt hole.

7. The steel-UHPC combined anti-collision buoyancy tank of claim 5, characterized in that: the energy absorption base (17) is a corrugated cylinder with a circular or square cross section.

8. The steel-UHPC combined anti-collision buoyancy tank of claim 5, characterized in that: the energy absorption base (17) is made of mild steel.

9. The steel-UHPC combined anti-collision buoyancy tank of claim 5, characterized in that: the energy absorption base (17) is made of rubber.

10. The steel-UHPC combined anti-collision buoyancy tank of claim 1, characterized in that: the thickness of the UHPC box (13) is not less than 70 mm.