CN108677716B - Group nail connecting device with corrugated sleeve - Google Patents
Group nail connecting device with corrugated sleeve Download PDFInfo
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- CN108677716B CN108677716B CN201810876386.0A CN201810876386A CN108677716B CN 108677716 B CN108677716 B CN 108677716B CN 201810876386 A CN201810876386 A CN 201810876386A CN 108677716 B CN108677716 B CN 108677716B
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- corrugated sleeve
- sleeve
- corrugated
- nail
- welding
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a group nail connecting device with a corrugated sleeve, which comprises a group nail connecting piece and a corrugated sleeve, wherein the group nail connecting piece comprises a plurality of welding nails, the corrugated sleeve is sleeved on the welding nails, and mortar is filled between the corrugated sleeve and the welding nails; and reinforcing meshes are arranged outside the corrugated sleeve in a staggered manner. The group nail connecting device with the corrugated sleeve provided by the invention has the advantages that the construction of a steel-concrete plate combined structure bridge is simple, the quality is high, and the construction effect is good.
Description
Technical Field
The invention relates to the technical field of connection of steel and concrete in a concrete combined structure, in particular to a group nail connecting device with a corrugated sleeve.
Background
In steel-concrete slab composite structural bridges, prestressed steel strands are often used to apply prestressing in order to reduce the tensile stress level of the concrete slab in the hogging moment region. In order to improve the efficiency of applying the prestress, it is necessary to separate the concrete slab from the steel beam while applying the prestress, and to connect the concrete slab and the steel beam together by the group pin after the prestress is applied. The group nail connecting piece is mutually staggered with the reinforcing steel bars in the bridge deck slab, the wood formwork is extremely complicated to support when the group nail connecting piece is manufactured on site, even if the formwork is manufactured, the formwork is difficult to remove when a concrete slab is poured, and the quality of the concrete slab with the holes is difficult to ensure.
Disclosure of Invention
The invention aims to provide a group nail connecting device with a corrugated sleeve, which is used for solving the problems in the prior art and ensuring that a steel-concrete slab composite structure bridge is simple in construction and high in quality.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a group nail connecting device with a corrugated sleeve, which comprises a group nail connecting piece and a corrugated sleeve, wherein the group nail connecting piece comprises a welding nail, the corrugated sleeve is sleeved on the welding nail, and mortar is filled between the corrugated sleeve and the welding nail; and reinforcing meshes are arranged outside the corrugated sleeve in a staggered manner.
Optionally, the welding nails are fixedly welded on a steel structure, the steel structure is a steel beam, and the steel beam is of an I-shaped structure or a box-shaped structure; the steel beam of the I-shaped structure comprises an upper flange plate, a lower flange plate and a web plate, and the welding nails are fixedly arranged on the upper flange plate.
Optionally, install a plurality ofly on the upper limb listrium the welding nail, every the welding nail all overlaps outward and is equipped with one corrugated sleeve.
Optionally, the mortar is a cement-based material and has the characteristics of high strength, good fluidity and micro-expansion.
Optionally, the corrugated sleeve is a cylindrical structure with a hollow interior; the outer wall of the corrugated sleeve is uniformly provided with axial corrugations.
Optionally, the axial corrugations are of the same peak and trough size. The strength and the elastic modulus of the material of the corrugated sleeve are larger than those of a concrete slab.
Optionally, the axial corrugations have different sizes of wave crests and wave troughs, and the strength and the elastic modulus of the corrugated sleeve material are greater than those of the concrete slab.
Optionally, the outer diameter of the corrugated sleeve is equal to the steel bar pitch of the steel bar mesh.
Optionally, the bridge structure further comprises a reinforcing mesh, wherein the reinforcing mesh is embedded in the concrete bridge deck, and the corrugated sleeve is fixed between the reinforcing meshes and embedded in the concrete slab.
Optionally, the corrugated sleeve has the same height as the concrete slab; the height of the corrugated sleeve is not less than the height of the welding nail.
Compared with the prior art, the invention has the following technical effects:
the group nail connecting device with the corrugated sleeve provided by the invention adopts the corrugated sleeve, the structure is simple, the construction is convenient, and the wave crests and the wave troughs of the corrugated sleeve are distributed along the length direction of the sleeve; the wall thickness of the sleeve is very thin, so that the sleeve does not need to participate in structural stress, and meanwhile, the deformation of the cross section is easy to generate when the sleeve is conveniently installed manually on site; the length of the sleeve is equivalent to the height of the group nail connecting piece; the diameter of the sleeve is equivalent to the spacing of the steel bars, so that one sleeve is placed outside one welding nail connector and is in contact with and propped against one steel bar mesh in the bridge deck by manually adjusting the cross section size of the sleeve during field installation; the mortar, namely the high-strength cement-based material, has good fluidity, ensures that the cement-based material can be fully filled in all gaps between the welding nail connecting piece and the corrugated sleeve, ensures the requirement of force transmission between the welding nail connecting piece and the bridge deck slab, improves the integral structural strength and has good stress.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in 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 inventive exercise.
FIG. 1 is a schematic perspective view of a group nail connection device with a corrugated sleeve according to the present invention;
FIG. 2 is a schematic view, partially in section, of a group pin connection with a corrugated sleeve according to the present invention;
FIG. 3 is a top view of the group pin connection device with corrugated sleeve according to the present invention;
fig. 4 is a schematic view of the reinforcing mesh structure of the group nail connecting device with corrugated sleeves according to the present invention;
FIG. 5 is a schematic view of a corrugated sleeve structure of the group nail connecting device with corrugated sleeve according to the present invention;
FIG. 6 is a schematic view of a group binding connector of the group nail connecting device with corrugated sleeve according to the present invention;
wherein, 1 is a group nail connecting piece, 2 is a corrugated sleeve, 3 is a steel beam, 3-1 is an upper flange plate, 3-2 is a lower flange plate, 3-3 is a web plate, 4 is a welding nail, 5 is a reinforcing mesh and 6 is a concrete plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a group nail connecting device with a corrugated sleeve, which is used for solving the problems in the prior art and ensuring that a steel-concrete slab composite structure bridge is simple in construction and high in quality.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a group nail connecting device with a corrugated sleeve, which comprises a group nail connecting piece 1 and a corrugated sleeve 2 made of metal, wherein the group nail connecting piece 1 comprises a welding nail 4, the welding nail 4 is fixedly arranged on a steel beam 3, the corrugated sleeve 2 is sleeved on the welding nail 4, and a high-strength cement-based material which can be mortar is filled between the corrugated sleeve 2 and the welding nail 4; the corrugated sleeve 2 is provided with reinforcing meshes 5 in a staggered manner. The steel beam 3 is of an I-shaped structure and comprises an upper flange plate 3-1 and a lower flange plate 3-2, a web plate 3-3 is arranged between the upper flange plate 3-1 and the lower flange plate 3-2, a plurality of welding nails 4 are fixedly arranged on the upper flange plate 3-1 at equal intervals or at variable intervals, and a corrugated sleeve 2 is sleeved outside each welding nail 4.
Further preferably, the corrugated sleeve 2 is a cylindrical structure with a hollow interior; the outer wall of the corrugated sleeve 2 is uniformly provided with axial corrugations, the outer diameter of the corrugated sleeve 2 is equal to the distance between the reinforcing steel bars of the reinforcing steel bar mesh 5, the corrugated sleeve also comprises a concrete plate 6, the reinforcing steel bar mesh 5 and the concrete jointly form the concrete plate, and the corrugated sleeve 2 is fixed in the concrete plate 6; the strength and the elastic modulus of the material of the corrugated sleeve 2 are greater than those of the concrete plate 6; the height of the corrugated sleeve 2 is greater than the height of the weld nail 4.
The wall thickness of the corrugated sleeve 2 is very thin, the corrugated sleeve does not need to participate in structural stress, and the deformation of the cross section is convenient to generate when the corrugated sleeve is manually installed on site; the length of the corrugated sleeve 2 is equivalent to the height of the welding nail 4 of the group nail connecting piece; the diameter of the corrugated sleeve 2 is equivalent to the spacing of the mesh of the reinforcing mesh 5, so that one corrugated sleeve 2 is placed outside one group nail connector and in one reinforcing mesh of the bridge deck, and the cross section of the corrugated sleeve 2 is manually adjusted to contact and abut against the reinforcing mesh 5 during field installation; the high-strength cement-based material has better fluidity, ensures that the cement-based material can be fully filled in all gaps between the group nail connecting piece and the corrugated sleeve 2, and has higher strength, which is the requirement of ensuring the force transmission between the group nail connecting piece and the bridge deck.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (4)
1. The utility model provides a take telescopic crowd's nail connecting device of ripple which characterized in that: the multi-nail connector comprises a multi-nail connector and a corrugated sleeve, wherein the multi-nail connector comprises a plurality of welding nails, the corrugated sleeve is sleeved on the welding nails, and mortar is filled between the corrugated sleeve and the welding nails; reinforcing meshes are arranged outside the corrugated sleeve in a staggered mode;
the welding nails are fixedly welded on a steel structure, the steel structure is a steel beam, and the steel beam is of an I-shaped structure; the steel beam of the H-shaped structure comprises an upper flange plate, a lower flange plate and a web plate, and the welding nails are fixedly arranged on the upper flange plate;
the upper flange plate is provided with a plurality of welding nails, and each welding nail is sleeved with one corrugated sleeve;
the corrugated sleeve is of a cylindrical structure with a hollow interior; axial corrugations are uniformly arranged on the outer wall of the corrugated sleeve;
the outer diameter of the corrugated sleeve is equal to the distance between the steel bars of the steel bar mesh;
the reinforcing mesh is embedded in the concrete bridge deck, and the corrugated sleeve is fixed between the reinforcing mesh and embedded in the concrete slab;
the height of the corrugated sleeve is the same as that of the concrete slab; the height of the corrugated sleeve is not less than that of the welding nail;
the wall thickness of the corrugated sleeve is very thin, structural stress is not needed, and deformation of the cross section is convenient to generate during field manual installation.
2. The group pin connection device with a corrugated sleeve of claim 1, wherein: the wave crest and the wave trough of the axial corrugation are different in size, and the strength and the elastic modulus of the material of the corrugated sleeve are larger than those of a concrete slab.
3. The group pin connection device with a corrugated sleeve of claim 1, wherein: the wave crests and the wave troughs of the axial corrugations are the same in size, and the strength and the elastic modulus of the corrugated sleeve material are larger than those of a concrete slab.
4. The group pin connection device with a corrugated sleeve of claim 1, wherein: the mortar is made of cement-based materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876386.0A CN108677716B (en) | 2018-08-03 | 2018-08-03 | Group nail connecting device with corrugated sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810876386.0A CN108677716B (en) | 2018-08-03 | 2018-08-03 | Group nail connecting device with corrugated sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN108677716A CN108677716A (en) | 2018-10-19 |
| CN108677716B true CN108677716B (en) | 2021-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810876386.0A Active CN108677716B (en) | 2018-08-03 | 2018-08-03 | Group nail connecting device with corrugated sleeve |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109930466B (en) * | 2019-04-10 | 2024-06-04 | 西南交通大学 | Steel-ECC-concrete composite beam and preparation method thereof |
| CN111395188B (en) * | 2020-04-02 | 2021-05-04 | 江西省高速公路投资集团有限责任公司 | Construction method of steel-concrete composite beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100689091B1 (en) * | 2006-08-08 | 2007-03-02 | 연세대학교 산학협력단 | Continuous bridge using hybrid girder |
| CN203546589U (en) * | 2013-10-24 | 2014-04-16 | 同济大学 | Steel girder-integral lifting arm prefabricated concrete bridge panel combined girder bridge |
| CN105239720A (en) * | 2015-11-18 | 2016-01-13 | 湖南大学 | Prefabricated assembled steel-concrete composite beam connected by adopting high-strength bolt |
| CN106906747A (en) * | 2016-10-28 | 2017-06-30 | 上海市政工程设计研究总院（集团）有限公司 | A kind of column and bent cap splicing structure |
| CN106677074B (en) * | 2017-02-23 | 2018-07-27 | 河南省交通规划设计研究院股份有限公司 | Prefabricated assembled Wavelike steel webplate T beam bridges |
| CN106835951B (en) * | 2017-03-28 | 2018-12-07 | 宁波金蛟龙重工钢构有限公司 | The replaceable prefabricated assembled combined beam structure of one kind and manufacturing process |
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