CN218263524U - Box girder bottom plate reinforced structure - Google Patents

Box girder bottom plate reinforced structure Download PDF

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Publication number
CN218263524U
CN218263524U CN202222649526.5U CN202222649526U CN218263524U CN 218263524 U CN218263524 U CN 218263524U CN 202222649526 U CN202222649526 U CN 202222649526U CN 218263524 U CN218263524 U CN 218263524U
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China
Prior art keywords
box girder
supporting plate
plate
steel plate
roof beam
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CN202222649526.5U
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Chinese (zh)
Inventor
周贵川
朱乾
刘爽
曾明
欧冠宏
王燎
周大宏
刘忠勇
陈德银
周鑫
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Fourth Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
CCCC First Highway Engineering Co Ltd
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Fourth Engineering Co Ltd of CCCC First Highway Engineering Co Ltd
CCCC First Highway Engineering Co Ltd
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Abstract

The utility model discloses a box girder bottom plate reinforced structure, which comprises a box girder main body and a bottom steel plate, wherein the bottom steel plate is arranged at the bottom of the box girder main body, a plurality of connecting steel plates with L-shaped cross sections penetrate through the bottom of the box girder main body, the bottom end of each connecting steel plate is welded and fixed with the bottom steel plate, a first concrete layer is arranged at the inner side of the box girder main body relative to the top end of each connecting steel plate, and a reinforcing mechanism is arranged at the bottom of the bottom steel plate; through the steel reinforcement cage, metal sheet, reinforcing bar, second concrete layer, backup pad, kicking block, thread piece, thread groove of design, can improve the fastness of end steel sheet installation, avoid the long-time back end steel sheet of using of reinforced structure to take place not hard up, drop even, lead to consolidating the effect and reduce, can not be fine satisfy people's user demand.

Description

Box girder bottom plate reinforced structure
Technical Field
The utility model belongs to the technical field of reinforced structure, concretely relates to case roof beam bottom plate reinforced structure.
Background
The box girder bridge is a bridge structure which is built in recent years in China, a considerable number of box girder bridges are found to have girder body downwarping and web plate transverse and longitudinal cracks, the requirements on the bearing capacity of the bridge along with the development of modern traffic are higher, however, the event that the bridge is crushed under the load of a vehicle is reported to occur frequently, so that the bridge which does not meet the requirements needs to be reinforced, and the application number is as follows: 201120196037.8 describes a case roof beam bottom steel plate reinforced structure, including newly-increased concrete layer, end steel sheet, expansion bolts, end steel sheet is through expansion bolts anchor in the case roof beam bottom plate, and its width is decided by the width of case roof beam bottom plate, knows that the reinforced structure that wherein describes is exactly a case roof beam bottom plate reinforced structure.
When the existing box girder bottom plate reinforcing structure is used, the bottom steel plate on the reinforcing structure is installed through a plurality of expansion bolts, but the installation mode is simple, the expansion bolts can be affected by external force after being used for a long time to loosen, the bottom steel plate is easy to fall off, the reinforcing effect is reduced, and therefore a structure is needed to be designed to solve the problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a case roof beam bottom plate reinforced structure to solve current reinforced structure and take place easily not hard up, the relatively poor problem of fastness.
In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a case roof beam bottom plate reinforced structure, includes case roof beam main part and end steel sheet, end steel sheet sets up in the bottom of case roof beam main part, the bottom of case roof beam main part is run through and is had a plurality of cross-sections to be the connecting steel sheet of "L" type structure, connecting steel sheet's bottom and end steel sheet welded fastening, the inboard of case roof beam main part is provided with first concrete layer for connecting steel sheet's top department, the bottom of end steel sheet is provided with strengthening mechanism, strengthening mechanism is including coupling assembling, backup pad and kicking block.
Preferably, the supporting plate is arranged at the bottom of the bottom steel plate, the top blocks are arranged at the top of the supporting plate at equal intervals, and the top ends of the top blocks are abutted to the bottom steel plate.
Preferably, the coupling assembling symmetry sets up in the both sides of case roof beam main part, coupling assembling is including steel reinforcement cage, metal sheet, reinforcing bar and second concrete layer, the both sides of case roof beam main part are fixed in to the steel reinforcement cage symmetry, the metal sheet is embedded into the inside of steel reinforcement cage, the bottom of metal sheet and the tip welded fastening of backup pad, the reinforcing bar runs through the inside of metal sheet, the one end of reinforcing bar is embedded into the inside of case roof beam main part, the second concrete layer is pour in the inside of steel reinforcement cage.
Preferably, the cross section of the top block is of a T-shaped structure, a mounting assembly is arranged between the bottom end of the top block and the supporting plate, and the mounting assembly comprises a thread block and a thread groove.
Preferably, the thread grooves are equidistantly formed in the top of the supporting plate, the thread blocks are embedded into the thread grooves and connected with the inner walls of the thread grooves through threads, and the top ends of the thread blocks are fixedly connected with the top block.
Preferably, the bottom of backup pad is provided with lifts the subassembly, it includes layer board, expansion bolts, through hole, constant head tank and locating piece to lift the subassembly.
Preferably, the supporting plate is arranged at the bottom of the supporting plate, the positioning grooves are symmetrically formed in two ends of the supporting plate, the positioning blocks are embedded into the corresponding positioning grooves, and the top ends of the positioning blocks are fixedly connected with the supporting plate.
Preferably, the through holes symmetrically penetrate through the top of the supporting plate, the expansion bolts penetrate through the corresponding through holes, and the top ends of the expansion bolts are embedded into the box girder main body.
Compared with the prior art, the beneficial effects of the utility model are that:
through the steel reinforcement cage, metal sheet, reinforcing bar, second concrete layer, backup pad, kicking block, thread piece, the thread groove of design, can improve the fastness of end steel sheet installation, avoid reinforced structure to use the back end steel sheet for a long time and take place not hard up, drop even, lead to consolidating the reduction of effect, can not be fine satisfy people's user demand.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of region A of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of region B of FIG. 1 according to the present invention;
in the figure: 100. a box girder main body; 200. a bottom steel plate; 300. connecting steel plates; 400. a first concrete layer; 500. a reinforcing mechanism; 501. a connecting assembly; 5011. a reinforcement cage; 5012. a metal plate; 5013. reinforcing steel bars; 5014. a second concrete layer; 502. a support plate; 503. a top block; 5031. a thread block; 5032. a thread groove; 600. a lifting assembly; 601. a support plate; 602. an expansion bolt; 603. a through hole; 604. positioning a groove; 605. and (5) positioning the blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides a technical solution: a box girder bottom plate reinforcing structure comprises a box girder main body 100 and a bottom steel plate 200, wherein the bottom steel plate 200 is arranged at the bottom of the box girder main body 100, a plurality of connecting steel plates 300 with L-shaped cross sections penetrate through the bottom of the box girder main body 100, the connecting steel plates 300 can fix the bottom steel plate 200, the bottom ends of the connecting steel plates 300 are fixedly welded with the bottom steel plate 200, a first concrete layer 400 is arranged on the inner side of the box girder main body 100 opposite to the top ends of the connecting steel plates 300, the first concrete layer 400 can fix the connecting steel plates 300, a reinforcing mechanism 500 is arranged at the bottom of the bottom steel plate 200, the mounting firmness of the bottom steel plate 200 can be improved by the reinforcing mechanism 500, the situation that the bottom steel plate 200 is loosened or even falls off after the reinforcing structure is used for a long time is avoided, the reinforcing effect is reduced, the using and the using connection assembly requirements of people cannot be well met, and the reinforcing mechanism 500 comprises a supporting plate 501, a supporting plate 502 and a top block 503; the support plate 502 is arranged at the bottom of the bottom steel plate 200, the top blocks 503 are arranged at the top of the support plate 502 at equal intervals, the top ends of the top blocks 503 are abutted against the bottom steel plate 200, the support plate 502 and the top blocks 503 can support the bottom steel plate 200, the connecting assemblies 501 are symmetrically arranged at two sides of the box girder main body 100, the connecting assemblies 501 can fix the support plate 502, the connecting assemblies 501 comprise a reinforcement cage 5011, a metal plate 5012, a reinforcement 5013 and a second concrete layer 5014, the reinforcement cage 5011 is symmetrically fixed at two sides of the box girder main body 100, the metal plate 5012 is embedded into the reinforcement cage 5011, the metal plate 5012 can be connected with the support plate 502, the bottom end of the metal plate 5012 is fixedly welded with the end of the support plate 502, the reinforcement 5013 penetrates through the interior of the metal plate 5012, one end of the reinforcement 5013 is embedded into the box girder main body 100, the second concrete layer 5014 is poured into the reinforcement cage 5011, the second concrete layer 5014, the reinforcement 5013 and the reinforcement cage 5011 can fix the metal plate 5012, the top blocks 503 are arranged between the top blocks 503 and the top blocks 5032, the top blocks are connected with the top blocks 5032 through screw thread groove, the top grooves, the top blocks 5032, the top blocks are connected with the top grooves 5032, the top blocks 5032.
In this embodiment, preferably, a lifting assembly 600 is disposed at the bottom of the supporting plate 502, the lifting assembly 600 may further support the supporting plate 502, the lifting assembly 600 includes a supporting plate 601, an expansion bolt 602, a through hole 603, a positioning groove 604 and a positioning block 605, the supporting plate 601 is disposed at the bottom of the supporting plate 502, the positioning grooves 604 are symmetrically disposed at two ends of the supporting plate 601, the positioning block 605 is embedded into the corresponding positioning groove 604, the top end of the positioning block 605 is fixedly connected to the supporting plate 502, a through hole communicated with the through hole 603 is also formed in the top of the supporting plate 502 in a penetrating manner, the positioning groove 604 and the positioning block 605 facilitate quick alignment of the through hole and the through hole 603, which is beneficial for installation of the expansion bolt 602, the through hole 603 is symmetrically disposed in the top of the supporting plate 601 in a penetrating manner, the expansion bolt 602 penetrates through the inside of the corresponding through hole 603, the top end of the expansion bolt 602 is embedded into the box girder main body 100, and the expansion bolt 602 may fix the supporting plate 601.
The utility model discloses a theory of operation and use flow: the utility model discloses when using, need to run through the bottom of case roof beam main part 100 with a plurality of steel connecting plate 300, then set up end steel sheet 200 in the bottom of case roof beam main part 100, bottom and end steel sheet 200 welded fastening with steel connecting plate 300, then pour first concrete layer 400 in the inboard of case roof beam main part 100, fix the top of steel connecting plate 300, next install the bottom at end steel sheet 200 with backup pad 502, set up backup pad 502 in the bottom of end steel sheet 200, make a plurality of kicks 503 at backup pad 502 top offset with the bottom of end steel sheet 200, at this moment, the metal sheet 5012 at backup pad 502 both ends imbeds to the inside that corresponds steel reinforcement cage 5011, simultaneously run through the inside of metal sheet 5012 with reinforcing bar 5013 and imbed to case roof beam main part 100, then pour second concrete layer 5014 to the inside of steel reinforcement cage 5011, just installed backup pad 502, install the bottom at backup pad 601 in the backup pad 502 again, make locating piece 605 of the bottom of backup pad 502 imbed to the inside that corresponds the constant head tank, then imbed the inside that runs through bolt 602 to case roof beam main part 603 and the through, the inside that can not hard up the steel supporting plate 100 can not hard up the reinforcing effect to take place, the supporting plate 200, it can not hard up the reduction of the use of the fixed mounting effect to take place, it can not hard up the supporting plate 200 to strengthen after can not hard up to take place, it is fine to the supporting plate 200 even to strengthen, it.
Although embodiments of the present invention have been shown and described (with particularity and detail in the foregoing description), it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a case roof beam bottom plate reinforced structure, includes case roof beam main part (100) and end steel sheet (200), end steel sheet (200) set up in the bottom of case roof beam main part (100), its characterized in that: the bottom of case roof beam main part (100) is run through and is had a plurality of cross-sections to be connecting steel plate (300) of "L" type structure, the bottom and end steel plate (200) welded fastening of connecting steel plate (300), the inboard of case roof beam main part (100) is provided with first concrete layer (400) for the top department of connecting steel plate (300), the bottom of end steel plate (200) is provided with strengthening mechanism (500), strengthening mechanism (500) are including coupling assembling (501), backup pad (502) and kicking block (503).
2. A box girder floor reinforcement structure according to claim 1, wherein: the supporting plate (502) is arranged at the bottom of the bottom steel plate (200), the top blocks (503) are arranged at the top of the supporting plate (502) at equal intervals, and the top ends of the top blocks (503) are abutted to the bottom steel plate (200).
3. A box girder floor reinforcing structure according to claim 2, wherein: coupling assembling (501) symmetry sets up in the both sides of case roof beam main part (100), coupling assembling (501) is including steel reinforcement cage (5011), metal sheet (5012), reinforcing bar (5013) and second concrete layer (5014), the both sides in case roof beam main part (100) are fixed in to steel reinforcement cage (5011) symmetry, inside to steel reinforcement cage (5011) is embedded into in metal sheet (5012), the bottom of metal sheet (5012) and the tip welded fastening of backup pad (502), inside that metal sheet (5012) is run through in reinforcing bar (5013), the inside to case roof beam main part (100) is embedded into to the one end of reinforcing bar (5013), second concrete layer (5014) are pour in the inside of steel reinforcement cage (5011).
4. A box girder floor reinforcement structure according to claim 2, wherein: the cross section of the top block (503) is of a T-shaped structure, an installation component is arranged between the bottom end of the top block (503) and the supporting plate (502), and the installation component comprises a thread block (5031) and a thread groove (5032).
5. A box girder floor reinforcement structure according to claim 4, wherein: the thread grooves (5032) are equidistantly formed in the top of the supporting plate (502), the thread blocks (5031) are embedded into the thread grooves (5032) and are connected with the inner walls of the thread grooves (5032) through threads, and the top ends of the thread blocks (5031) are fixedly connected with the top block (503).
6. A box girder floor reinforcement structure according to claim 1, wherein: the bottom of backup pad (502) is provided with lifts subassembly (600), lift subassembly (600) including layer board (601), expansion bolts (602), through hole (603), constant head tank (604) and locating piece (605).
7. A box girder floor reinforcement structure according to claim 6, wherein: the supporting plate (601) is arranged at the bottom of the supporting plate (502), the positioning grooves (604) are symmetrically formed in two ends of the supporting plate (601), the positioning blocks (605) are embedded into the corresponding positioning grooves (604), and the top ends of the positioning blocks (605) are fixedly connected with the supporting plate (502).
8. A box girder floor reinforcement structure according to claim 6, wherein: the through holes (603) symmetrically penetrate through the top of the supporting plate (601), the expansion bolts (602) penetrate through the corresponding through holes (603), and the top ends of the expansion bolts (602) are embedded into the box girder main body (100).
CN202222649526.5U 2022-10-08 2022-10-08 Box girder bottom plate reinforced structure Active CN218263524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222649526.5U CN218263524U (en) 2022-10-08 2022-10-08 Box girder bottom plate reinforced structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222649526.5U CN218263524U (en) 2022-10-08 2022-10-08 Box girder bottom plate reinforced structure

Publications (1)

Publication Number Publication Date
CN218263524U true CN218263524U (en) 2023-01-10

Family

ID=84750936

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222649526.5U Active CN218263524U (en) 2022-10-08 2022-10-08 Box girder bottom plate reinforced structure

Country Status (1)

Country Link
CN (1) CN218263524U (en)

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