CN219862342U - Coupling assembling and steel-concrete composite beam - Google Patents
Coupling assembling and steel-concrete composite beam Download PDFInfo
- Publication number
- CN219862342U CN219862342U CN202320392317.9U CN202320392317U CN219862342U CN 219862342 U CN219862342 U CN 219862342U CN 202320392317 U CN202320392317 U CN 202320392317U CN 219862342 U CN219862342 U CN 219862342U
- Authority
- CN
- China
- Prior art keywords
- bolt
- backing plate
- strength bolt
- upper flange
- concrete composite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 239000004567 concrete Substances 0.000 title claims description 22
- 230000008878 coupling Effects 0.000 title description 2
- 238000010168 coupling process Methods 0.000 title description 2
- 238000005859 coupling reaction Methods 0.000 title description 2
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 9
- 238000010008 shearing Methods 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 29
- 239000010959 steel Substances 0.000 description 29
- 238000009434 installation Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The utility model relates to the field of bridges, in particular to a connecting assembly and a reinforced concrete composite beam, wherein the connecting assembly comprises a high-strength bolt, a connecting sleeve and a bolt stud which are sequentially arranged from bottom to top, and the connecting sleeve coaxially fixes the high-strength bolt and the bolt stud through threaded fit; the screw rod body of the high-strength bolt is sequentially provided with a lower gasket, an upper gasket and a fastening nut from bottom to top; the high-strength bolt and the backing plate are matched to provide friction force in the horizontal direction, the stud plays a role in shearing resistance, the respective functions can be fully played after the matching, the shearing resistance bearing capacity and the fatigue performance of the hybrid beam are improved, the connection is simple, welding and fixing are not needed, the quick assembly and disassembly are realized, the requirement of quick full assembly construction is met, and the structural durability is remarkably improved.
Description
Technical Field
The utility model relates to the field of bridges, in particular to a connecting assembly and a steel-concrete composite beam.
Background
The steel-concrete composite beam is a novel structural type developed on the basis of a steel structure and a concrete structure, and mainly resists lifting and relative sliding of the steel girder and the bridge deck at an interface by arranging shear connectors (studs, channel steel, bent ribs and the like) between the steel girder and the bridge deck, so that the steel-concrete composite beam is integrated and works together, and the compression performance of the concrete and the tension performance of the steel can be fully utilized.
When the composite girder bridge is constructed, the manufacture and the pin connection of the steel main girder are usually completed in a factory, the steel structure is spliced on site, the prefabricated bridge deck slab is installed, and the wet joint is poured. Because of the stress characteristic of the continuous beam structure, the concrete bridge deck of the combined beam in the hogging moment area of the middle supporting point is tensioned without taking other measures such as pre-lifting, the steel main beam is stressed, and the steel main beam is welded with bolts in advance during installation; the studs on the steel girder are staggered with the steel bars in the concrete bridge deck during hoisting, so that the two are easy to collide during hoisting and installation, the installation is difficult, and the concrete bridge deck cannot slip on the steel girder due to the presence of the studs; thus, there is a need for a solution.
Disclosure of Invention
In order to avoid and overcome the technical problems in the prior art, the utility model provides a connecting assembly. The utility model improves the shearing bearing capacity and fatigue performance of the steel-concrete composite beam, reduces the installation difficulty, improves the structural durability and is convenient to repair and replace.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the connecting assembly comprises a high-strength bolt, a connecting sleeve and a bolt stud, wherein the high-strength bolt, the connecting sleeve and the bolt stud are sequentially arranged from bottom to top, and the connecting sleeve is used for coaxially fixing the high-strength bolt and the bolt stud through threaded fit; the screw rod body of the high-strength bolt is sequentially provided with a lower gasket, an upper gasket and a fastening nut from bottom to top.
A steel-concrete composite beam using a connecting assembly: the prefabricated bridge deck comprises an I-shaped steel beam and prefabricated bridge decks fixed on the upper flanges of the I-shaped steel beam, wherein backing plates are arranged on the upper flanges of the I-shaped steel beam at intervals along the length direction of web plates of the upper flanges of the I-shaped steel beam, and the backing plates are connected and fixed with the upper flanges of the I-shaped steel beam through connecting components; the prefabricated bridge deck is provided with a mounting groove corresponding to the position of the backing plate for the connecting component to be mounted in the groove, and concrete is poured after the connecting component is mounted in the mounting groove.
As still further aspects of the utility model: the connecting components are arranged in an array on the plate surface of the backing plate, and the backing plate and the connecting components are matched to form a shear pin group.
As still further aspects of the utility model: the high-strength bolts of the connecting assembly sequentially penetrate through the upper flange of the I-shaped steel beam and the backing plate from bottom to top, the upper gaskets are arranged above the backing plate, the lower gaskets are arranged below the upper flange of the I-shaped steel beam, and the high-strength bolts are locked and fixed after the fastening nuts are screwed.
As still further aspects of the utility model: the upper flange of the I-shaped steel beam is pre-provided with a mounting hole through which a high-strength bolt passes, and the backing plate is provided with a positioning hole corresponding to the mounting hole in position.
Compared with the prior art, the utility model has the beneficial effects that:
1. the connecting component consists of the high-strength bolt and the peg, the high-strength bolt and the backing plate are matched to provide friction force in the horizontal direction, the peg plays a role in shearing resistance, the functions of the peg can be fully played after the high-strength bolt and the backing plate are matched, the shearing resistance bearing capacity and fatigue performance of the hybrid beam are improved, the connection is simple, welding and fixing are not needed, the quick assembly and disassembly are realized, the requirement of quick full assembly construction is met, and the structural durability is remarkably improved.
2. According to the utility model, the stud and the high-strength bolt are in threaded connection through the connecting sleeve, so that the quality problems of infirm welding, stud burning and the like generated during welding of a large number of studs are avoided, and the connecting assembly can be rapidly disassembled when the prefabricated bridge deck is required to be replaced in the later period.
3. According to the utility model, the mounting groove is pre-formed in the prefabricated bridge deck so that the shearing-resistant stud group is arranged in the mounting groove, and the shearing-resistant stud group can be screwed and fixed after the hoisting and sliding construction of the prefabricated bridge deck is completed, so that the mutual interference between the prefabricated bridge deck and the stud is avoided; meanwhile, the upper flange of the I-shaped steel beam is fixedly provided with a backing plate, and the size of the backing plate can be adjusted to provide a variable horizontal friction force value for the combined beam so as to control the occurrence form and size of concrete cracks and improve the durability of the structure.
Drawings
Fig. 1 is a schematic structural view of the steel-concrete composite girder of the present utility model.
Fig. 2 is a cross-sectional view of the reinforced concrete composite girder of the present utility model.
Fig. 3 is an assembly view of the connection assembly of the present utility model with a steel i-beam.
Fig. 4 is a schematic structural view of a girder i-section according to the present utility model.
Fig. 5 is a schematic structural view of a connection assembly according to the present utility model.
Fig. 6 is an exploded view of the connection assembly of the present utility model.
In the figure:
1. an I-beam; 11. A mounting hole;
2. a population of shear studs; 21. A connection assembly; 211. Turning a bolt pin;
212. a connecting sleeve; 213. A high-strength bolt; 214. A gasket is arranged on the upper part;
215. a fastening nut; 216. a lower gasket; 22. a backing plate; 221. positioning holes;
3. prefabricating bridge decks; 31. and a mounting groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 6, in an embodiment of the present utility model, a connection assembly and a reinforced concrete composite beam, the reinforced concrete composite beam includes an i-beam 1 and a prefabricated bridge deck 3, the i-beam 1 and the prefabricated bridge deck 3 are prefabricated members, and the prefabricated bridge deck 3 is connected and fixed with an upper flange of the i-beam 1 through a shear pin group 2 during installation.
The shear stud group 2 comprises a connecting assembly 21 and backing plates 22, wherein the backing plates 22 are made of steel plates, and the backing plates 22 are arranged at intervals along the length direction of the web plate of the I-beam 1 on the upper flange of the I-beam 1. The prefabricated bridge deck 3 is provided with a mounting groove 31 corresponding to the base plate 22 in position for mounting and fixing the shear pin group 2. The upper flange of the I-shaped steel beam 1 is pre-provided with a mounting hole 11, and the backing plate 22 is provided with a positioning hole 221 corresponding to the mounting hole 11.
The connecting assembly 21 comprises a high-strength bolt 213, a connecting sleeve 212 and a bolt stud 211, wherein the high-strength bolt 213 sequentially penetrates through the mounting hole 11 and the positioning hole 221 from bottom to top to fixedly connect the backing plate 22 and the I-beam 1. The shaft of the high-strength bolt 213 extends into the mounting groove 31 and is coaxially fixed to the turning bolt 211 by the screw engagement of the connecting sleeve 212.
The depth H of the mounting groove 31 is:
wherein e is the tensile strength of the I-shaped steel beam;
a is the length of the high-strength bolt in the mounting groove;
b is the whole length of the high-strength bolt;
m is the length of the mounting groove;
n is the width of the mounting groove;
k is the tensile strength of the high-strength bolt;
p is the number of high-strength bolts;
d is the interval between the adjacent high-strength bolts;
the optimal depth of the prefabricated bridge deck installation groove is calculated according to the size performance of the high-strength bolt, the optimal depth of the installation groove is controlled so that the concrete thickness can be optimally adapted to the size of the high-strength bolt after the installation groove is completely filled with concrete, the structural strength of the combined beam is maximized through the minimum concrete filling amount, and the durability of the structure is improved.
An upper gasket 214 positioned above the backing plate 22 and a lower gasket 216 positioned below the upper flange of the I-beam 1 are arranged on the high-strength bolts 213, and after the fastening nuts 215 are screwed, the upper flange of the I-beam 1 and the backing plate 22 can be clamped and fixed through the cooperation of the upper gasket 214 and the lower gasket 216. The lower spacer 216, the upper spacer 214 and the fastening nut 215 are arranged in order from bottom to top.
When the steel-concrete composite beam is installed, the following steps are adopted:
s1, machining a prefabricated member of the I-shaped steel beam 1 and the prefabricated bridge deck 3 according to a set size;
s2, installing a shear-resistant stud group 2 on the upper flange of the I-shaped steel beam 1;
s3, mounting the prefabricated bridge deck plate 3 on the upper flange of the I-shaped steel beam 1, enabling the mounting groove 31 of the prefabricated bridge deck plate 3 to correspond to the position of the shear stud group 2 on the I-shaped steel beam 1, and pouring concrete in the mounting groove 31 to finish mounting;
s4, when the reinforced concrete composite beam is replaced, firstly, the concrete in the mounting groove 31 is chiseled, the shear pin group 2 is disassembled and inspected, the reusable connecting component 21 is reserved, and the step S3 is repeated to replace a new prefabricated bridge deck 3.
The basic principles of the present utility model have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present utility model are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present utility model. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the utility model is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present utility model are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It is also noted that in the apparatus, devices and methods of the present utility model, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present utility model.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the utility model. Thus, the present utility model is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the utility model to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (5)
1. The connecting assembly is characterized in that the connecting assembly (21) comprises a high-strength bolt (213), a connecting sleeve (212) and a bolt (211) which are sequentially arranged from bottom to top, and the connecting sleeve (212) coaxially fixes the high-strength bolt (213) and the bolt (211) through threaded fit; the screw rod body of the high-strength bolt (213) is sequentially provided with a lower gasket (216), an upper gasket (214) and a fastening nut (215) from bottom to top.
2. A reinforced concrete composite beam, which is characterized by comprising a connecting component (21), an I-beam (1) and a prefabricated bridge deck (3) fixed on the upper flange of the I-beam (1), wherein the upper flange of the I-beam (1) is provided with backing plates (22) at intervals along the length direction of a web plate, and the backing plates (22) are connected and fixed with the upper flange of the I-beam (1) through the connecting component (21); the prefabricated bridge deck (3) is provided with a mounting groove (31) corresponding to the position of the backing plate (22) for the connecting component (21) to be mounted in the groove, and concrete is poured after the connecting component (21) is mounted in the mounting groove (31).
3. A reinforced concrete composite girder according to claim 2, characterized in that the connection elements (21) are arranged in an array on the plate surface of the backing plate (22), the backing plate (22) and the connection elements (21) cooperating to form the shear stud group (2).
4. A reinforced concrete composite girder according to claim 2, wherein the high-strength bolts (213) of the connecting assembly (21) sequentially pass through the upper flange of the i-beam (1) and the backing plate (22) from bottom to top, the upper gasket (214) is arranged above the backing plate (22), the lower gasket (216) is arranged below the upper flange of the i-beam (1), and the high-strength bolts (213) are locked and fixed after the fastening nuts (215) are screwed.
5. A reinforced concrete composite girder according to any one of claims 2 to 4, wherein the upper flange of the i-beam (1) is pre-provided with mounting holes (11) through which high-strength bolts (213) pass, and the backing plate (22) is provided with positioning holes (221) corresponding to the positions of the mounting holes (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320392317.9U CN219862342U (en) | 2023-03-01 | 2023-03-01 | Coupling assembling and steel-concrete composite beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320392317.9U CN219862342U (en) | 2023-03-01 | 2023-03-01 | Coupling assembling and steel-concrete composite beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219862342U true CN219862342U (en) | 2023-10-20 |
Family
ID=88322991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320392317.9U Active CN219862342U (en) | 2023-03-01 | 2023-03-01 | Coupling assembling and steel-concrete composite beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219862342U (en) |
-
2023
- 2023-03-01 CN CN202320392317.9U patent/CN219862342U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2018196376A1 (en) | Dry connection prefabricated assembly steel-concrete composite beam | |
| CN109914216B (en) | Assembled large-span ultra-high-performance concrete box girder combined node and connecting method thereof | |
| CN210507091U (en) | Assembled prestressed combined box girder | |
| CN110629655B (en) | Steel concrete composite beam adopting local replaceable plate of suspended formwork system | |
| CN113774781A (en) | Shear part joint composite structure of composite beam bridge and construction method thereof | |
| CN219862342U (en) | Coupling assembling and steel-concrete composite beam | |
| CN211396201U (en) | Connection structure of embedded steel beam and prefabricated composite floor slab | |
| CN110055871B (en) | Full-assembly B-G connection steel-concrete combined beam bridge | |
| CN113026555A (en) | Combined beam structure of prefabricated steel plate beam and combined bridge deck | |
| KR20000021226A (en) | Method of production of preflex composite beam by division method | |
| CN116497702A (en) | Method for disassembling and assembling steel-concrete composite beam with friction shear-resistant studs | |
| CN115613444A (en) | Assembled corrugated steel web-UHPC composite beam | |
| CN210459704U (en) | Full-assembly replaceable steel-concrete composite floor | |
| CN211340374U (en) | Novel steel-concrete composite beam shear force connecting key | |
| CN113700153A (en) | Connecting structure of assembled laminated slab and combination beam and construction method thereof | |
| CN216405063U (en) | Joint composite structure of combined beam bridge | |
| CN219930696U (en) | Groove type hole web plate composite beam and concrete bridge platform node | |
| CN219690283U (en) | Assembled steel-concrete composite beam adopting detachable cluster high-strength bolt connecting piece | |
| CN116219865B (en) | Assembled corrugated steel web-steel pipe composite beam and cantilever assembly construction method thereof | |
| CN110331650B (en) | Public-rail dual-purpose prestressed continuous steel truss combination beam and construction method thereof | |
| CN219825835U (en) | Concrete character shape combination beam structure | |
| CN216891943U (en) | Beam end connecting structure of simply-supported continuous steel-concrete combined continuous beam | |
| CN215051987U (en) | Corrugated steel composite beam assembling segment | |
| CN217810470U (en) | Light-duty assembled steel-UHPC composite beam | |
| CN216379113U (en) | Assembled corrugated steel web continuous composite beam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |