CN218621774U - A block for protecting U-shaped abutment - Google Patents

Abstract

The utility model discloses a cap for protecting a U-shaped abutment, which relates to the technical field of bridge construction, and comprises a U-shaped steel sleeve component and a buffer layer, wherein the U-shaped steel sleeve component is matched with the U-shaped abutment in shape and is used for being sleeved on the U-shaped abutment; the buffer layer is arranged between the U-shaped steel sleeve assembly and the U-shaped bridge abutment. The U-shaped steel sleeve assembly is sleeved on the U-shaped abutment, and the buffer layer is arranged between the U-shaped steel sleeve assembly and the U-shaped abutment, so that the concrete structure of the U-shaped abutment can be protected, and the fragile parts such as corners and the like are prevented from being sheared and cracked when the U-shaped abutment is stressed; the U-shaped steel sleeve component can generate a discrete effect on the concentrated load borne by the U-shaped bridge abutment, so that the concentrated load is more uniformly transmitted to the U-shaped bridge abutment; the U-shaped steel sleeve assembly can also be used as a filling structure of an expansion joint between the U-shaped abutment and the trestle, so that machinery and personnel can conveniently pass without barriers.

Description

A block for protecting U-shaped abutment

Technical Field

The utility model relates to a bridge construction technical field, concretely relates to block for protecting U-shaped abutment.

Background

The trestle abutment is used as an important structure for connecting the trestle main body supporting structure with the embankment, can transfer the load borne by the trestle bridge deck to the foundation, and plays a role in resisting the pressure of soil mass on the back of the trestle and stably connecting the bridge head access way with the trestle passage.

The U-shaped abutment is used as a common abutment, the structure is simple, the foundation area of the abutment bottom plate is large, and the U-shaped abutment has good pressure bearing performance, but the structures of the upper abutment cap and the wing walls on two sides are thin, so that the concrete of the abutment body is easy to crack under the action of impact load, the pressure bearing and connecting effects of the abutment are greatly weakened, great influence is caused on the safety of machinery and personnel passing, the construction period is further delayed, and unnecessary economic loss is caused.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a block for protecting U-shaped abutment to solve the problem that U-shaped abutment is easily strikeed and destroys in the use.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

there is provided a cap for protecting a U-shaped abutment, comprising:

the U-shaped steel sleeve assembly is matched with the U-shaped abutment in shape and is used for being sleeved on the U-shaped abutment;

and the buffer layer is arranged between the U-shaped steel sleeve assembly and the U-shaped bridge abutment.

In some alternative embodiments, the U-shaped steel jacket assembly comprises:

the cover body is arranged at the top of the U-shaped bridge abutment, and the outer edge of the cover body extends out of the U-shaped bridge abutment;

the upper ends of the inner supporting part and the outer supporting part are connected with the outer edge of the cover body extending out of the U-shaped bridge abutment, and the inner supporting part and the outer supporting part are respectively arranged on the inner side and the outer side of the U-shaped bridge abutment.

In some optional embodiments, the cover includes:

the first I-shaped steels are arranged at the tops of the U-shaped bridge abutments at intervals, two ends of each first I-shaped steel extend out of the U-shaped bridge abutments, and the length directions of the first I-shaped steels are perpendicular to the length directions of the wall bodies corresponding to the U-shaped bridge abutments;

and the cover plate is arranged on the tops of all the first I-shaped steel.

In some alternative embodiments, each of the inner support portion and the outer support portion includes a plurality of second i-beams, each of the second i-beams being connected to the outer edge of the first i-beam extending beyond the U-shaped bridge abutment.

In some optional embodiments, stiffening plates are respectively disposed on both sides of the web plate of each of the second i-shaped steel and the first i-shaped steel, and the stiffening plates are respectively vertically connected to the wing plates of the first i-shaped steel or the second i-shaped steel.

In some alternative embodiments, a support plate is provided at a predetermined position of the bottom wing plate of each of the second i-section steels, the support plate extending away from the side connected to the second i-section steel toward the buffer layer and being adapted to abut the U-shaped abutment.

In some optional embodiments, a steel plate is further disposed between the second i-shaped steel and the buffer layer, and the steel plate is placed on the support plate.

In some alternative embodiments, two adjacent first i-shaped steels at the side wall of the U-shaped abutment are separated by 50cm, and two adjacent first i-shaped steels at the front wall of the U-shaped abutment are separated by 25cm.

In some alternative embodiments, the inner support portion and the outer support portion are spaced apart from the buffer layer by a predetermined distance.

In some alternative embodiments, the two corners of the U-shaped steel sleeve assembly are respectively provided with a diagonal brace.

Compared with the prior art, the utility model has the advantages of: the U-shaped steel sleeve assembly is sleeved on the U-shaped abutment, and the buffer layer is arranged between the U-shaped steel sleeve assembly and the U-shaped abutment, so that the concrete structure of the U-shaped abutment can be protected, and the fragile parts such as corners and the like are prevented from being sheared and cracked when the U-shaped abutment is stressed; the U-shaped steel sleeve component can generate a discrete effect on the concentrated load borne by the U-shaped bridge abutment, so that the concentrated load is more uniformly transmitted to the U-shaped bridge abutment; the U-shaped steel sleeve assembly can also be used as a filling structure of an expansion joint between the U-shaped abutment and the trestle, so that machinery and personnel can conveniently pass without barriers.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic top view of a cap for protecting a U-shaped abutment according to the present invention;

fig. 2 is a schematic front view of a cap for protecting a U-shaped abutment according to the present invention;

fig. 3 is a schematic view of a cap for protecting a U-shaped abutment and a trestle according to the present invention;

FIG. 4 is a schematic structural view of the cover plate of FIG. 1;

FIG. 5 is a schematic view illustrating the connection between the first I-shaped steel and the first stiffener in FIG. 1;

FIG. 6 is a schematic view of the connection between the second I-shaped steel and the second stiffening plate in FIG. 1;

FIG. 7 is a schematic view showing the connection of the second I-shaped steel of FIG. 1 with a support plate and a steel plate.

In the figure: 1. a U-shaped steel jacket assembly; 11. an inner support portion; 12. an outer support portion; 13. a first I-shaped steel; 131. a first stiffener plate; 14. a cover plate; 15. a second I-shaped steel; 151. a second stiffener plate; 16. a support plate; 17. bracing; 2. a buffer layer; 3. a U-shaped abutment; 31. a front wall; 32. a side wall; 4. a steel plate; 5. a trestle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

As shown in fig. 1 and fig. 2, the present application provides a cap for protecting a U-shaped abutment, which includes a U-shaped steel sleeve assembly 1 and a buffer layer 2, the U-shaped steel sleeve assembly 1 matches with the U-shaped abutment 3 in shape, and is used for being sleeved on the U-shaped abutment 3; the buffer layer 2 is arranged between the U-shaped steel sleeve assembly 1 and the U-shaped bridge abutment 3.

It can be understood that the U-shaped steel sleeve assembly 1 is sleeved on the U-shaped bridge abutment 3, and the buffer layer 2 is arranged between the U-shaped steel sleeve assembly 1 and the U-shaped bridge abutment 3, so that the concrete structure of the U-shaped bridge abutment 3 can be protected, and the fragile parts such as corners and the like are prevented from being sheared and cracked when the U-shaped bridge abutment 3 is stressed; the U-shaped steel sleeve component 1 can generate a discrete effect on the concentrated load borne by the U-shaped abutment 3, so that the concentrated load is more uniformly transmitted to each part of the U-shaped abutment 3; u-shaped steel sleeve subassembly 1 can also regard as the filling structure at the expansion joint between U-shaped abutment 3 and landing stage 5, makes things convenient for machinery and personnel accessible to pass.

In this example, the U-shaped steel sleeve component 1 is made of steel structure, and the buffer layer 2 is made of rubber cushion layer. In other embodiments, the materials of the U-shaped steel sleeve assembly 1 and the buffer layer 2 can be set according to actual construction requirements. It should be noted that the buffer layer 2 is filled between the U-shaped steel sleeve assembly 1 and the U-shaped abutment 3 to improve the uneven contact between the steel-structured U-shaped steel sleeve assembly 1 and the concrete abutment, further protect the U-shaped abutment and improve the buffer resistance of the U-shaped abutment.

In some alternative embodiments, the U-shaped steel sleeve assembly 1 includes a cover body and an inner supporting portion 11 and an outer supporting portion 12, the cover body is configured to be disposed on top of the U-shaped abutment 3, and an outer edge of the cover body extends out of the U-shaped abutment 3; the upper ends of the inner support 11 and the outer support 12 are connected to the outer edge of the cover body extending out of the U-shaped abutment 3, and the inner support 11 and the outer support 12 are respectively arranged at the inner side and the outer side of the U-shaped abutment 3.

In this example, the U-shaped abutment 3 comprises a front wall 31 and two side walls 32 connected to both sides of the front wall, both side walls 32 being arranged perpendicular to the front wall 31. The lid is with the shape adaptation of U-shaped abutment 3, also is the U-shaped in the projection of vertical direction promptly to the top lid of front wall 31 and two side walls 32 is established. The outer edge of the cover extends beyond the U-shaped abutment 3 and is connected to the inner 11 and outer 12 support portions so that the inner 11 and outer 12 support portions are disposed inside and outside the U-shaped abutment 3, respectively. The cover body and the inner side supporting part 11 and the outer side supporting part 12 are U-shaped in cross section along the vertical direction, so that the cover body is covered on the U-shaped bridge abutment 3 to play a role in protecting the U-shaped bridge abutment 3.

It will be appreciated that the cushioning layer 2 is disposed between the inner and outer supports 11, 12 and the U-shaped abutment 3.

In some optional embodiments, the cover body includes a plurality of first i-shaped steels 13 and a cover plate 14, the first i-shaped steels 13 are arranged at intervals on the top of the U-shaped abutment, both ends of each first i-shaped steel 13 extend out of the U-shaped abutment 3, and the length direction of each first i-shaped steel 13 is perpendicular to the length direction of the wall body corresponding to the U-shaped abutment 3; a cover plate 14 is provided on top of all the first i-section steels 13.

It will be appreciated that the lower limb of the first i-section steel 13 is placed on top of the U-shaped abutment 3 with the two ends projecting respectively inwardly and outwardly of the U-shaped abutment 3. Specifically, the length direction of the first i-shaped steel 13 placed on the front wall 31 is perpendicular to the transverse bridging direction of the front wall 31, and the length directions of the first i-shaped steel 13 placed on the two side walls 32 are both perpendicular to the longitudinal bridging direction of the two side walls 32.

As shown in fig. 3, in this example, the first i-shaped steel 13 placed on the two side walls 32 has fewer passing machines, so the distance between two adjacent first i-shaped steels 13 is preferably 50cm; the first i-section steel 13 placed on the front wall 31 is a main force-receiving member, and thus the interval between two adjacent first i-section steels 13 is set to 25cm. The length of the outer edge, which extends out of the two ends of the first i-shaped steel 13 in the length direction to the inner side and the outer side of the U-shaped abutment 3, is determined according to the width of the reserved expansion joint between the U-shaped abutment 3 and the trestle 5, and is not limited in this example. However, it should be noted that the lengths of the two ends of the first i-shaped steel 13 extending towards the inside and the outside of the U-shaped abutment 3 should be consistent.

Preferably, as shown in fig. 4, the cover plate 14 is a steel plate and has a U-shape that fits the U-shaped abutment. The function of the cover 14 here is to facilitate the movement of machinery and personnel over.

In some alternative embodiments, the inner supporting portion 11 and the outer supporting portion 12 each include a plurality of second i-beams 15, and each of the second i-beams 15 is connected to an outer edge of the first i-beam 13 extending out of the U-shaped abutment 3.

It will be appreciated that the upper wing of the second i-section steel 15 of both the inner support 11 and the outer support 12 are welded to the lower wing of the first i-section steel 13. In this example, two adjacent first i-shaped steels 13 extend towards the inner side and the outer side of the U-shaped abutment 3, and are respectively connected with the same second i-shaped steel 15, and the webs of the first i-shaped steels 13 and the second i-shaped steels 15 are perpendicular to each other.

The purpose that sets up like this is, make full use of the section characteristic of I-shaped steel to can effectively resist the moment of flexure that receives in the web plane, and be convenient for weld between I-shaped steel and the I-shaped steel, not only economic performance is superior, and the commonality is good, through the I-shaped steel combination welding of different quantity and model, thereby the adaptation is different U-shaped abutment. In this example, the first i-section steel 13 and the second i-section steel 15 are included, and the length, height and width of the first i-section steel 13 and the second i-section steel 15 are set according to the specific structure of the U-shaped abutment 3.

In some alternative embodiments, as shown in fig. 5 and 6, stiffening plates are disposed on both sides of the web of each of the first and second i-shaped steels 13 and 15, and each of the stiffening plates is vertically connected to the wing plate of the first i-shaped steel 13 or the second i-shaped steel 15.

The stiffening plate is provided in order to increase the stiffness of the carrier section of the steel, which is one of the advantages of steel, namely the ease of welding the stiffening plate between the two flanges.

Specifically, three first stiffening plates 131 are welded on two sides of a web plate of each first i-shaped steel 13 at intervals, each first stiffening plate 131 is vertically connected with a wing plate of the first i-shaped steel 13, and the three first stiffening plates 131 correspond to the positions of the U-shaped bridge abutment 3 and the web plates of the two second i-shaped steels 15 connected to the two sides of the first i-shaped steel 13 respectively, so that the rigidity of the joints of the first i-shaped steel 13, the U-shaped bridge abutment 3 and the second i-shaped steels 15 is increased. Two second stiffening plates 151 are welded on two sides of a web plate of each second I-shaped steel 15 at intervals, each second stiffening plate 151 is perpendicularly connected with a wing plate of the second I-shaped steel 15, and the two second stiffening plates 151 correspond to the positions of web members of the two first I-shaped steels 13 connected with the web plates respectively, so that the rigidity of the joint of the second I-shaped steel 15 and the first I-shaped steel 13 is increased.

In this embodiment, by providing the first stiffening plates 131 on the first i-section steel 13, a part of the first i-section steel 13 on the front wall 31 can be clamped on the side walls 32 and between the two first stiffening plates 131 of the first i-section steel 13 near the front wall 31, so as to fix the relative position of the first i-section steel 13 at the connection position of the front wall 31 and the side walls 32.

In some alternative embodiments, as shown in fig. 7, a support plate 16 is provided at a predetermined position of a bottom wing plate of each second i-steel 15, the support plate 16 extends away from a side connected with the second i-steel 15 to the buffer layer 2 and is used for abutting against the U-shaped abutment 3, a steel plate 4 is further provided between the second i-steel 15 and the buffer layer 2, and the steel plate 4 is placed on the support plate 16.

It will be appreciated that the support plate 16 is connected at one end to the second i-section steel 15 and at the other end to the U-shaped abutment 3 so that the second i-section steel 15 of both the inner support 11 and the outer support 12 is spaced a set distance from the cushioning layer 2 affixed to the U-shaped abutment 3. In this example, the buffer layers 2 are further provided on the inner side and the outer side of the U-shaped abutment 3, so that the other end of the support plate 16 is ensured to be in contact with the buffer layer 2, and the distance between the edge of the wing plate of the second i-shaped steel 15 close to the U-shaped abutment 3 and the buffer layer 2 is 1.5cm, which is provided for the purpose of facilitating the U-shaped steel sleeve assembly 1 to be sleeved on the U-shaped abutment 3.

After the U-shaped steel sleeve assembly 1 is sleeved on the U-shaped bridge abutment 3, the steel plate 4 is laid at the gap between the second I-shaped steel 15 and the buffer layer 2, so that the gap between the second I-shaped steel 15 and the buffer layer 2 is filled up by the steel plate 4, and no sliding space is reserved between the U-shaped steel sleeve assembly 1 and the U-shaped bridge abutment 3. The steel plate 4 is placed on the support plate 16, and the relative position of the steel plate 4 is further fixed, so that the steel plate 4 is prevented from falling off due to the action of stress and gravity in the use process.

In some alternative embodiments, the two corners of the U-shaped steel jacket assembly 1 are respectively provided with a diagonal brace 17.

Because the projection of U-shaped steel jacket subassembly 1 in vertical direction is the U-shaped with U-shaped abutment adaptation, consequently set up the effect of bracing 17 and be, make U-shaped steel jacket subassembly 1's structure more stable. It can be understood that two ends of the inclined strut 17 are respectively connected to the inner supporting portion 11, and are located at two connecting corners of the front wall 31 and the side wall 32 to form a triangular bearing structure.

In this example, two braces 17 are welded to each corner of the U-shaped steel jacket assembly 1.

In another aspect, a construction method for protecting a steel jacket of a U-shaped abutment includes the steps of:

s1: and prefabricating a U-shaped steel sleeve assembly 1 matched with the U-shaped bridge abutment 3 in shape.

Specifically, the U-shaped steel sleeve assembly 1 comprises a cover body, an inner supporting portion 11 and an outer supporting portion 12, wherein the cover body is arranged at the top of the U-shaped abutment 3, and the outer edge of the cover body extends out of the U-shaped abutment 3; the upper ends of the inner supporting part 11 and the outer supporting part 12 are connected with the outer edge of the cover body extending out of the U-shaped bridge abutment 3, and the inner supporting part 11 and the outer supporting part 12 are respectively used for being abutted against the inner side and the outer side of the U-shaped bridge abutment 3.

Further, the cover body comprises a plurality of first i-shaped steels 13 and cover plates 14, the first i-shaped steels 13 are arranged at intervals on the top of the U-shaped abutment, two ends of each first i-shaped steel 13 extend out of the U-shaped abutment 3, and the length direction of each first i-shaped steel 13 is perpendicular to the length direction of the wall body corresponding to the U-shaped abutment 3; a cover plate 14 is provided on top of all of the above-described first i-section steels 13.

The inner support portion 11 and the outer support portion 12 each include a plurality of second i-beams 15, and each of the second i-beams 15 is connected to an outer edge of the first i-beam 13 extending out of the U-shaped abutment 3.

During specific machining, the upper wing plates of the first I-shaped steels 13 are welded on one side of the cover plate 14 at equal intervals, the length direction of the first I-shaped steels 13 is perpendicular to the corresponding length direction of the cover plate 14, the second I-shaped steels 15 are welded on two sides of the length direction of the first I-shaped steels 13, two sides of two adjacent first I-shaped steels 13 are respectively connected with the same second I-shaped steel 15, the web plates of the first I-shaped steels 13 and the web plates of the second I-shaped steels 15 are perpendicular to each other, and a stiffening plate is welded at a set position between the wing plates of the first I-shaped steels 13 and the second I-shaped steels 15 to enhance the rigidity of the first I-shaped steels 13 and the second I-shaped steels 15 and prevent the first I-shaped steels 13 located on the front wall 31 and the side walls 32 from displacing.

S2: the buffer layer 2 is adhered to the surface of the U-shaped abutment 3.

In this example, rubber cushions 2 are respectively adhered to the inside and outside of the U-shaped abutment 3.

S3: and sleeving the U-shaped steel sleeve assembly 1 outside the buffer layer 2 of the U-shaped abutment 3.

Specifically, after the buffer layer 2 is adhered to the surface of the U-shaped abutment, the U-shaped steel sleeve assembly 1 is sleeved on the U-shaped abutment 3. At this time, since the inner support portion 11 and the outer support portion 12 have a gap with the buffer layer 2 on the U-shaped abutment 3, the support plate 16 is connected to the lower wing plate of the second i-shaped steel 15, the other end of the support plate 16 abuts against the buffer layer 2 on the U-shaped abutment 3, and the steel plate 4 is laid in the gap between the second i-shaped steel 15 and the buffer layer 2, so that the gap between the second i-shaped steel 15 and the buffer layer 2 is filled up with the steel plate 4, thereby ensuring that there is no sliding space between the U-shaped steel bush assembly 1 and the U-shaped abutment. The steel plate 4 is placed on the support plate 16, and the relative position of the steel plate 4 is further fixed, so that the steel plate 4 is prevented from falling off due to the action of stress and gravity in the use process.

Preferably, two diagonal braces 17 are respectively disposed at two corners of the U-shaped steel jacket assembly 1 to increase the structural stability of the U-shaped steel jacket assembly 1.

The utility model discloses a block for protecting U-shaped abutment, through establish U-shaped steel sleeve subassembly on the U-shaped abutment cover, and set up the buffer layer between U-shaped steel sleeve subassembly and U-shaped abutment, thereby can play the guard action to the concrete structure of U-shaped abutment, prevent when the U-shaped abutment is forced, fragile positions such as corner are cut and split; the U-shaped steel sleeve component can generate a discrete effect on the concentrated load borne by the U-shaped bridge abutment, so that the concentrated load is more uniformly transmitted to the U-shaped bridge abutment; the U-shaped steel sleeve assembly can also be used as a filling structure of an expansion joint between the U-shaped abutment and the trestle, so that the machine and personnel can conveniently pass through without barriers; the inner supporting part, the outer supporting part and the cover body are all formed by processing a plurality of I-shaped steels, so that the processing is convenient, the prefabrication is convenient, the customization can be performed according to different sizes and sizes of the abutment, the universality is improved, the cost is reduced, and the height difference between the abutment and the bridge floor of the trestle can be effectively adjusted by utilizing the I-shaped steels with different models, so that the bumping and the impact caused by the dislocation of the channel height in the travelling process of the machine can be avoided; the U-shaped steel sleeve assembly and the U-shaped bridge abutment are fixed in relative positions through the buffer layer and the steel plate, so that the U-shaped steel sleeve assembly and the U-shaped bridge abutment are not required to be connected in a tapping or welding mode, the U-shaped steel sleeve assembly is convenient to mount and dismount, and the structure of the U-shaped bridge abutment cannot be influenced; the reinforcing plate is welded between the wing plates of the first I-shaped steel and the second I-shaped steel, so that the stress capacity of the I-shaped steel is further improved, and the relative positions of the first I-shaped steel positioned at the joint of the front wall and the side wall of the U-shaped abutment can be fixed through the reinforcing plate to prevent displacement; set up the rubber buffer layer between U-shaped abutment and U-shaped steel sleeve subassembly, the deformation that the concrete that not only can adapt to the U-shaped abutment produced under temperature variation plays the effect of adjusting clearance between U-shaped abutment and the U-shaped steel sleeve subassembly, also played the guard action to the U-shaped abutment simultaneously, prevent that the U-shaped steel sleeve subassembly from causing the damage to the U-shaped abutment, and can play the cushioning effect, the impact of reduction external force to the U-shaped abutment, protective structure.

In the description of the present application, 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 merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. 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 application can be understood by those of ordinary skill in the art as the case may be.

It is noted that, in this application, relational terms such as "first" and "second," and the like, are 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 phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. 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 application. Thus, the present application 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 (10)

1. A cap for protecting a U-shaped abutment, comprising:

the U-shaped steel sleeve assembly (1) is matched with the U-shaped bridge abutment (3) in shape and is used for being sleeved on the U-shaped bridge abutment (3);

the buffer layer (2) is arranged between the U-shaped steel sleeve assembly (1) and the U-shaped bridge abutment (3).

2. A cap for protecting a U-shaped abutment according to claim 1, characterized in that said U-shaped steel sleeve assembly (1) comprises:

the cover body is arranged at the top of the U-shaped bridge abutment (3), and the outer edge of the cover body extends out of the U-shaped bridge abutment (3);

the upper ends of the inner supporting part (11) and the outer supporting part (12) are connected with the outer edge of the U-shaped bridge abutment (3) extending out of the cover body, and the inner supporting part (11) and the outer supporting part (12) are respectively used for being arranged on the inner side and the outer side of the U-shaped bridge abutment (3).

3. A cap for protecting a U-shaped abutment according to claim 2, wherein said cover comprises:

the first I-shaped steels (13) are arranged at the tops of the U-shaped bridge abutments at intervals, two ends of each first I-shaped steel (13) extend out of the U-shaped bridge abutments (3), and the length directions of the first I-shaped steels (13) are perpendicular to the length directions of the walls corresponding to the U-shaped bridge abutments (3);

and the cover plate (14) is arranged on the top of all the first I-shaped steel (13).

4. A cap for protecting a U-shaped abutment according to claim 3, characterized in that the inner support portion (11) and the outer support portion (12) each comprise a plurality of second I-beams (15), each of the second I-beams (15) being connected to the outer edge of the first I-beam (13) which projects beyond the U-shaped abutment (3).

5. A cap for protecting a U-shaped abutment according to claim 4, wherein stiffening plates are arranged on both sides of the web of each of the second I-steel (15) and the first I-steel (13), and the stiffening plates are vertically connected with the wing plates of the first I-steel (13) or the second I-steel (15), respectively.

6. A cap for protecting a U-shaped abutment according to claim 4, characterized in that a support plate (16) is provided at a predetermined position of the bottom wing of each second I-steel (15), said support plate (16) extending away from the side connected to the second I-steel (15) towards the cushioning layer (2) and being intended to abut against the U-shaped abutment (3).

7. A cap for protecting a U-shaped abutment according to claim 6, characterized in that a steel plate (4) is further provided between the second I-steel (15) and the cushioning layer (2), the steel plate (4) being placed on the support plate (16).

8. A cap for protecting a U-shaped abutment according to claim 3, wherein the interval between two adjacent first I-shaped steels (13) at the side wall of the U-shaped abutment (3) is 50cm, and the interval between two adjacent first I-shaped steels (13) at the front wall of the U-shaped abutment (3) is 25cm.

9. A cap for protecting a U-shaped abutment according to claim 2, characterized in that said inner support (11) and said outer support (12) are each spaced from said cushioning layer (2) by a set distance.

10. A cap for protecting a U-shaped abutment according to claim 1, wherein two corners of the U-shaped steel sleeve assembly (1) are provided with braces (17), respectively.

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