CN107100319B

CN107100319B - Combined beam

Info

Publication number: CN107100319B
Application number: CN201710401190.1A
Authority: CN
Inventors: 陈姗; 邹传龙; 陈艳艳; 李明懋
Original assignee: Nanning University
Current assignee: Nanning University
Priority date: 2017-05-31
Filing date: 2017-05-31
Publication date: 2023-03-17
Anticipated expiration: 2037-05-31
Also published as: CN107100319A

Abstract

The invention discloses a combined beam which comprises concrete and a framework (1) inside the concrete, wherein the framework (1) is a steel component with a T-shaped section, a web plate (11) of the framework (1) is provided with a first through hole penetrating through the web plate (11), a flange (12) of the framework (1) is provided with a second through hole penetrating through the flange (12), the side end face of the flange (12) of the framework (1) is also provided with a third through hole, and the third through hole is communicated with the second through hole. The beam adopting the framework has high strength, good rigidity, more and reliable connection and action points with concrete, convenient pouring and connection and good expandability when being connected with other structures.

Description

Combined beam

Technical Field

The invention relates to a beam structure, in particular to a skeleton structure inside a beam.

Background

The existing beam structure, no matter prefabricated or cast-in-place, is internally provided with various types of woven steel bars as a framework, and the working procedures and calculation are very complicated; on the other hand, if the section steel is used as a framework, the integrity is poor due to the lack of connection points and action points of the section steel with the concrete.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the utility model provides a combination beam, its skeleton intensity is high, and the rigidity is good, is connected and the action point is many and reliable with the concrete, and the pouring is convenient, connects conveniently, and scalability when being connected with other structures is good.

The technical scheme of the invention is as follows:

the utility model provides a combination beam, includes concrete and the inside skeleton of concrete, the skeleton is T shape cross-section steel component, and it has the first through-hole that runs through the web to open on the web of skeleton, it has the second through-hole that runs through the edge of a wing to open on the edge of a wing of skeleton, the edge of a wing side end face of skeleton has still opened the third through-hole, and third through-hole and second through-hole intercommunication.

The first through holes are arranged in a row at equal intervals along the length direction of the framework, and the axes of the first through holes are perpendicular to the web.

The second through holes are arranged in two rows and are arranged in parallel along the length direction of the framework, the holes in the same row are distributed with the holes at equal intervals, and the axes of the holes are all perpendicular to the flange.

And the axis of the third through hole is vertical to the side end face of the flange.

The two lines of second through holes which are arranged in parallel are communicated through a fourth through hole.

The second through holes comprise smooth holes and threaded holes, and the smooth holes and the threaded holes are arranged at intervals.

And the upper part of the flange of the T-shaped section framework is connected with the steel plate, and the steel plate is provided with a fifth through hole corresponding to the second through hole.

And two sides of a web plate of the T-shaped section framework are connected with the wood member through the first through hole.

The utility model provides a box girder, the box inner wall of box girder links to each other with the steel skeleton of T shape cross-section, and it has the first through-hole that runs through the web to open on the web of skeleton, it has the second through-hole that runs through the edge of a wing to open on the edge of a wing of skeleton, the edge of a wing side end face of skeleton has still opened the third through-hole, and third through-hole and second through-hole intercommunication.

The invention has the following characteristics:

1. the framework is simple to process, the cross section of the framework is T-shaped, the framework is easy to form, and meanwhile, the through holes are straight holes, so that the framework is convenient to process.

2. When concrete is poured, the concrete flows into the first through hole, the second through hole and the third through hole to form a structure connected and acted with the framework.

3, the T-shaped section framework can bear the action of bending and shearing force, and the calculation is convenient.

4. The joining of fourth through-hole, its effect is as cushion chamber and balanced chamber, when the cast concrete entered from second through-hole and third through-hole, and there is pressure difference both sides can, and the existence of fourth through-hole makes intercommunication between hole and the hole, has balanced pressure, the timely combustion gas of failing in the exhaust port, on the other hand, because the existence of fourth through-hole, has improved the mobility of concrete in second through-hole and third through-hole.

5. The effect of first through-hole is not merely increased with the concrete be connected and the action point, when needs adopt wooden member to decorate, can be connected wooden member and skeleton through first through-hole.

6. As an extension, when the contact area of the framework flange and the concrete above needs to be increased, the steel plate is connected with the steel plate through the second through hole.

7. The second through hole can adopt smooth hole and screw hole alternate arrangement's mode, and the cooperation screw realizes being connected between the component, and the screw is connected with other components on the one hand, and on the other hand, the smooth hole intussuseption is filled with the concrete.

Drawings

FIG. 1 is a schematic representation of the skeletal structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the skeletal frame of the present invention;

FIG. 3 is a schematic cross-sectional view of a skeletal frame incorporating a fourth aperture of the present invention;

FIG. 4 is a cross-sectional view of a beam comprising a T-shaped skeleton;

FIG. 5 is a schematic view of the web portion of the T-frame being connected to a wood member;

FIG. 6 is a schematic view of the connection of the top flange of the T-shaped frame to the steel plate;

fig. 7 is a schematic view of a box girder structure including a T-shaped framework.

Detailed Description

As shown in fig. 1, the framework 1 is a steel member with a T-shaped cross section, a web 11 of the steel member is provided with a first through hole penetrating through the web 11, the first through hole is a circular hole, a flange 12 of the framework 1 is provided with a second through hole penetrating through the flange 12, the second through hole is a circular hole, and end surfaces of two sides of the flange 12 of the framework 1 are further provided with third through holes communicated with the second through hole. The first through holes are a row of circular holes with equal diameter which are arranged along the length direction of the framework 1 at equal intervals, and the axial direction of the first through holes is vertical to the web 11. The second through holes are two columns in total and are parallel to the length direction of the framework 1, the distance between the second through holes in the same column is equal, the hole diameters are equal, and the axes of the holes are perpendicular to the flange 12.

As shown in fig. 2, the third through holes and the second through holes are distributed on the side end surface of the flange 12 in a one-to-one correspondence manner, and are communicated with the inner cavity of the second through hole.

As shown in fig. 3, the difference from fig. 2 is that both ends of the fourth through hole are respectively communicated with the two second through holes.

As shown in fig. 4, the T-shaped frame 1 is embedded in a concrete poured beam.

As shown in fig. 5, the T-shaped frame 1 is formed into a beam by casting concrete through the flange 12, and the T-shaped frame 1 is connected with the wood member through the first through hole of the web 11.

As shown in fig. 6, when the contact surface between the framework 1 and the concrete needs to be increased, the flange 12 is connected to the steel plate through the second through hole, the steel plate is provided with a connecting hole corresponding to the second through hole, and when the frame is used, the pin is inserted into the connecting hole for positioning (inserting at intervals), so that a sufficient number of second through holes can be filled with concrete.

As shown in fig. 7, a T-shaped framework 1 is inserted into the internal box cavity of the box beam, and the second through hole on the flange 12 on the framework 1 includes a threaded hole, so that the T-shaped framework 1 is connected with the inner wall of the box beam box body through the threaded hole.

Claims

1. The utility model provides a combination beam, includes concrete and the inside skeleton (1) of concrete, its characterized in that: the steel framework is characterized in that the framework (1) is a steel component with a T-shaped section, a web plate (11) of the framework (1) is provided with a first through hole penetrating through the web plate (11), a flange (12) of the framework (1) is provided with a second through hole penetrating through the flange (12), the side end face of the flange (12) of the framework (1) is also provided with a third through hole, and the third through hole is communicated with the second through hole;

two rows of second through holes are arranged in parallel along the length direction of the framework (1), holes in the same row are distributed at equal intervals, and the axes of the holes are perpendicular to the flange (12);

the second through holes comprise smooth holes and threaded holes which are arranged alternately;

the two columns of second through holes which are arranged in parallel are communicated through a fourth through hole.

2. The composite beam of claim 1, wherein: the first through holes are arranged in a row at equal intervals along the length direction of the framework (1), and the axes of the first through holes are perpendicular to the web plate (11).

3. The composite beam of claim 1, wherein: the axis of the third through hole is perpendicular to the side end face of the flange (12).

4. The composite beam of claim 1, wherein: and a fifth through hole corresponding to the second through hole is formed in the steel plate.

5. The composite beam of claim 1, wherein: two sides of a web plate (11) of the T-shaped section framework (1) are connected with the wood member through first through holes.

6. A box girder which characterized in that: the box inner wall of case roof beam links to each other with steel skeleton (1) of T shape cross-section, and it has the first through-hole that runs through web (11) to open on web (11) of skeleton (1), it has the second through-hole that runs through flange (12) to open on flange (12) of skeleton (1), flange (12) side end face of skeleton (1) has still opened the third through-hole, and third through-hole and second through-hole intercommunication.