1. The utility model provides a roll over shape steel web and concrete slab's tooth mouth type connection structure which characterized in that: the steel plate comprises a folded steel web plate, a flange steel plate, a concrete plate, a perforated steel plate and a perforated steel bar; the bottom surface of the flange steel plate is fixedly connected with the top end of the folded steel web plate, and the folded steel web plate is perpendicular to the bottom surface of the flange steel plate; the bottom end of the perforated steel plate is fixedly connected with the top surface of the flange steel plate, the perforated steel plate is perpendicular to the top surface of the flange steel plate, and the folded steel web plate and the perforated steel plate are arranged along the same direction; the perforated steel plate is provided with a plurality of notches which are distributed at intervals along the length direction of the perforated steel plate, the openings of the notches are positioned at the edge of the top end of the perforated steel plate, the perforated steel bars are inserted into the notches, and the minimum width of the notches is greater than the diameter of the perforated steel bars; the flange steel plate supports the concrete slab, the top surface of the flange steel plate is attached to the bottom surface of the concrete slab, and the perforated steel plate and the perforated steel bars are both poured inside the concrete slab.

2. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the trompil steel sheet is two, two have the interval between the trompil steel sheet and be parallel to each other, two on the trompil steel sheet the breach one-to-one, corresponding two the breach is just right each other.

3. The rebate-type connection of corrugated steel webs to concrete panels according to claim 2, wherein: any one of the perforated reinforcing steel bars passes through the two corresponding notches.

4. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the perforated steel plates are at least three, the perforated steel plates are parallel to each other and are arranged at intervals, any two adjacent notches on the perforated steel plates correspond to each other one by one, the corresponding two notches are opposite to each other, and any one perforated steel bar penetrates through all the perforated steel plates.

5. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the notch comprises a mounting hole and a tooth opening, the perforated steel bar is inserted into the mounting hole, the bottom end of the tooth opening is communicated with the mounting hole, the top end of the tooth opening is the opening, and the minimum width of the tooth opening is larger than the diameter of the perforated steel bar.

6. The rebate-type connection of corrugated steel webs to concrete panels according to claim 5, wherein: the tooth mouth is rectangular.

7. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the notch is in an inverted omega shape.

8. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the notches are uniformly distributed on the perforated steel plate.

9. The rebate-type connection of corrugated steel webs to concrete panels according to claim 1, wherein: the flange steel plate is welded with the folded steel web, and the perforated steel plate is welded with the flange steel plate.

Background

The combination is rolled over web bridge and is adopted the steel web of book shape to replace traditional concrete web as a neotype bridge structures, and the case roof beam structure dead weight alleviates greatly, removes the restraint between the top bottom plate simultaneously, reduces inferior internal force, improves prestressing force and applies efficiency, has thoroughly solved the problem of web fracture, obtains the wide application at home in recent years.

For the combined web-folded bridge, the joint part of the folded steel web plate and the concrete slab is the most critical structure of the bridge, the longitudinal horizontal shear force can be effectively transmitted, meanwhile, all parts of the cross section of the box girder are ensured to form a whole to bear load, and the joint part can be generally divided into a flange type and an embedded type. Among them, the connection structure in which flange steel plates are welded to the upper edges of the folded steel webs and perforated plates are arranged is most widely used. However, in the existing perforated plate connection structure, holes are formed in a steel plate, reinforcing steel bars are penetrated through the holes one by one from the side face of the steel plate during construction, when the perforated plates are arranged in multiple rows or arranged in a box, the reinforcing steel bars are extremely difficult to penetrate through the perforated plate connection structure, a plurality of reinforcing steel bar connectors are generally required to be arranged, and the technical problem of how to realize efficient and high-quality connection of the folded steel web plate and the concrete plate is solved.

Disclosure of Invention

The invention aims to provide a tooth mouth type connecting structure of a folded steel web plate and a concrete slab, which solves the construction problem that the existing perforated plate connecting structure is difficult to penetrate through a steel bar from a side hole, ensures the bearing capacity and the deformation performance, and improves the convenience of construction of a combined structure of the folded steel web plate and the concrete slab.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a tooth mouth type connecting structure of a folded steel web plate and a concrete slab, which comprises the folded steel web plate, a flange steel plate, the concrete slab, a perforated steel plate and a perforated steel bar, wherein the folded steel web plate is fixedly connected with the concrete slab; the bottom surface of the flange steel plate is fixedly connected with the top end of the folded steel web plate, and the folded steel web plate is perpendicular to the bottom surface of the flange steel plate; the bottom end of the perforated steel plate is fixedly connected with the top surface of the flange steel plate, the perforated steel plate is perpendicular to the top surface of the flange steel plate, and the folded steel web plate and the perforated steel plate are arranged along the same direction; the perforated steel plate is provided with a plurality of notches which are distributed at intervals along the length direction of the perforated steel plate, the openings of the notches are positioned at the edge of the top end of the perforated steel plate, the perforated steel bars are inserted into the notches, and the minimum width of the notches is greater than the diameter of the perforated steel bars; the flange steel plate supports the concrete slab, the top surface of the flange steel plate is attached to the bottom surface of the concrete slab, and the perforated steel plate and the perforated steel bars are both poured inside the concrete slab.

Preferably, the number of the perforated steel plates is two, the perforated steel plates are spaced and parallel to each other, the notches on the perforated steel plates are in one-to-one correspondence, and the corresponding notches are opposite to each other.

Preferably, any one of the perforated reinforcing bars passes through two corresponding notches.

Preferably, the number of the perforated steel plates is at least three, the perforated steel plates are parallel to each other and are arranged at intervals, any two adjacent notches on the perforated steel plates correspond to each other one by one, the corresponding two notches are opposite to each other, and any one perforated steel bar penetrates through all the perforated steel plates.

Preferably, the notch comprises a mounting hole and a tooth opening, the perforated steel bar is inserted into the mounting hole, the bottom end of the tooth opening is communicated with the mounting hole, the top end of the tooth opening is the opening, and the minimum width of the tooth opening is larger than the diameter of the perforated steel bar.

Preferably, the tooth mouth is rectangular.

Preferably, the notch is in the shape of an inverted "omega".

Preferably, a plurality of the notches are uniformly distributed on the perforated steel plate.

Preferably, the flange steel plate is welded with the folded steel web, and the perforated steel plate is welded with the flange steel plate.

Compared with the prior art, the invention has the following technical effects:

the tooth mouth type connecting structure of the folded steel web plate and the concrete slab ensures the bearing capacity and the deformation performance and improves the convenience of the construction of the combined structure of the folded steel web plate and the concrete slab. The opening steel plate is provided with the notch comprising the tooth opening and the mounting hole, so that the shearing resistance area of the concrete pin bolt is increased, the shearing resistance bearing capacity of the connection structure is improved, and the influence on the shearing resistance deformation performance is small; the tooth mouth forms a toothed lath, so that the engaging force of the outer edge of the hole is increased, the pulling-resistant bearing capacity and rigidity of the perforated steel plate connecting structure are increased, and the pulling-resistant deformation performance is good; the technical problem that reinforcing steel bars are difficult to penetrate through holes in the side faces of the perforated plate in the construction process is well solved, construction convenience is improved, and construction efficiency is improved; the perforated steel plate with the inverted omega-shaped notch can be cut by single line, the processing and manufacturing efficiency is high, and the steel utility is fully exerted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 creative efforts.

FIG. 1 is a first structural schematic view of a first embodiment of a crenellated connecting structure of a corrugated steel web and a concrete slab according to the present invention;

FIG. 2 is a schematic structural view of a first embodiment of a crenellated connecting structure of a corrugated steel web and a concrete slab according to the present invention;

FIG. 3 is a third structural schematic view of a first embodiment of a tooth-shaped connecting structure of a corrugated steel web and a concrete slab according to the present invention;

FIG. 4 is a first structural schematic view of a second embodiment of a crenellated connecting structure of a corrugated steel web and a concrete slab according to the present invention;

FIG. 5 is a second structural view of a second embodiment of the crenellated connecting structure of a steel web and a concrete slab according to the present invention;

FIG. 6 is a third structural schematic view of a second embodiment of a crenellated connecting structure of a corrugated steel web and a concrete slab according to the present invention;

FIG. 7 is a schematic view of the cutting and forming of a steel plate with a hole in the second embodiment of the connection structure of a zigzag steel web and a concrete slab of the present invention;

wherein: 100. the zigzag steel web plate and the concrete slab are in a tooth mouth type connecting structure; 1. a folded steel web; 2. a flange steel plate; 3. a concrete slab; 4. punching a steel plate; 5. mounting holes; 6. a tooth mouth; 7. punching a steel bar; 8. a steel plate cutting line; 9. and (4) a notch.

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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

The invention aims to provide a tooth mouth type connecting structure of a folded steel web plate and a concrete slab, which solves the construction problem that the existing perforated plate connecting structure is difficult to penetrate through a steel bar from a side hole, ensures the bearing capacity and the deformation performance, and improves the convenience of construction of a combined structure of the folded steel web plate and the concrete slab.

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.

Example one

As shown in fig. 1 to 3: the embodiment provides a tooth mouth type connecting structure 100 of a folded steel web and a concrete slab 3, which comprises the folded steel web 1, a flange steel plate 2, the concrete slab 3, a plurality of perforated steel bars 7 and two perforated steel plates 4.

The bottom surface of the flange steel plate 2 is welded with the top end of the folded steel web plate 1, and the folded steel web plate 1 is perpendicular to the bottom surface of the flange steel plate 2; the bottom end of the perforated steel plate 4 is welded with the top surface of the flange steel plate 2, the perforated steel plate 4 is perpendicular to the top surface of the flange steel plate 2, and the folded steel web plate 1 and the perforated steel plate 4 are longitudinally arranged; a plurality of notches 9 distributed at intervals along the length direction of the perforated steel plate 4 are uniformly arranged on the perforated steel plate 4, the opening of each notch 9 is positioned at the edge of the top end of the perforated steel plate 4, perforated steel bars 7 are inserted into the notches 9, and the minimum width of each notch 9 is larger than the diameter of each perforated steel bar 7; the two perforated steel plates 4 are spaced and parallel to each other, the notches 9 on the two perforated steel plates 4 correspond to each other one by one, the corresponding two notches 9 are opposite to each other, and any perforated steel bar 7 passes through the two corresponding notches 9; any one of the perforated rebars 7 passes through two corresponding notches 9.

In this embodiment, breach 9 includes mounting hole 5 and tooth mouth 6, and perforated steel bar 7 inserts and establishes in mounting hole 5, and the bottom of tooth mouth 6 communicates with each other with mounting hole 5, and the top of tooth mouth 6 is the opening promptly, and the minimum width of tooth mouth 6 is greater than the diameter of perforated steel bar 7, and tooth mouth 6 is the rectangle. When setting up perforation reinforcing bar 7, only need make perforation reinforcing bar 7 pass through tooth mouth 6 then lie in mounting hole 5 and can realize the setting of perforation reinforcing bar 7, need aim at the hole on the trompil board with perforation reinforcing bar 7 among the prior art then the scheme of perforation hole again, it is very convenient, high-efficient.

The flange steel plate 2 is used for supporting the concrete slab 3, the top surface of the flange steel plate 2 is attached to the bottom surface of the concrete slab 3, and the perforated steel plate 4 and the perforated steel bars 7 are both poured inside the concrete slab 3.

Example two

As shown in fig. 4 to 7: the present embodiment provides a crenellated connecting structure 100 of a corrugated steel web and a concrete slab 3, the crenellated connecting structure 100 of the corrugated steel web and the concrete slab 3 of the present embodiment is substantially the same as the crenellated connecting structure 100 of the corrugated steel web and the concrete slab 3 provided in the first embodiment, except that: the notch 9 on the trompil steel sheet 4 is down "omega" shape in this embodiment paper tinsel steel web and concrete slab 3's tooth mouth type connection structure 100, and the benefit that sets up like this lies in, when cutting preparation trompil steel sheet 4, can cut along steel sheet cutting line 8 on a holistic steel sheet, can obtain two trompil steel sheets 4 after once cutting, provides processing preparation efficiency and steel sheet utilization ratio. Similarly, the shape of the notch 9 on the perforated steel plate 4 can be set to be similar in shape, such as semi-circular shape, semi-elliptical shape, etc., which can achieve the technical effect of obtaining two perforated steel plates 4 after cutting once. The specific number of the perforated steel plates 4 is not limited by the first embodiment and the second embodiment, and when the perforated steel plates are specifically applied, a plurality of perforated steel plates 4 can be arranged in parallel and at intervals, each perforated steel plate 4 is provided with a plurality of notches 9, and the perforated steel bars 7 penetrate through each perforated steel plate 4.

In the description of the present invention, it should be noted that the terms "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present 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.