CN108589918A - A kind of connection structure of assembling truss beam and quadrate steel pipe column - Google Patents

Abstract

The invention discloses a connection structure between an assembled truss beam and a square steel pipe column. The upper and lower sides of the square steel pipe column are respectively provided with an upper column seat and a lower column seat, and the two sides are connected with the truss beam; The upper and lower sides of the prism are respectively connected to the first flange and the second flange, and the two sides of the regular square prism are connected to the H-shaped connector. The H-shaped connector is provided with a connecting plate, and the connecting plate is uniformly provided with bolt holes; the truss beam includes Web bar and channel steel beam, the upper part of the web bar is the upper chord, the lower part is the lower chord, the upper chord and the lower chord are hollow quadrangular prism structures, and a wing plate is provided on one surface of the end, and the wing plate is connected to the channel steel beam; The upper column seat includes the upper column of square steel pipe and the third flange; the lower column seat includes the lower column of square steel pipe and the fourth flange; the third flange is connected with the first flange, and the fourth flange is connected with the second flange. The invention improves the bearing capacity of the beam-column joints, and there is no welding process on site, which greatly accelerates the construction speed and shortens the construction period.

Description

A connection structure between fabricated truss beams and square steel pipe columns

technical field

The invention relates to a connection structure between an assembled truss beam and a square steel pipe column, belonging to the field of structural engineering.

Background technique

The fabricated steel structure system is a component produced in accordance with specifications and standards. Transport to the construction site, and then quickly assemble and install the produced components. The prefabricated steel structure system has the advantages of light weight, green and environmental protection, so this structure system is widely used. In addition, this structural system has the advantages of fast construction speed and high strength, which meets the needs of my country's construction industrialization.

The fabricated steel structure system requires the structure to have sufficient strength, stiffness and ductility in normal use. Beam-column joints are the key parts of the entire structural system, and the quality of the joints is directly related to the mechanical performance of the structure. In addition, under earthquake action, the most vulnerable part of the entire structural system is the beam-column connection node. Therefore, the joint design is an important part of the structural design in the steel structure system.

For the prefabricated steel structure system, the joint design needs to meet the construction speed in order to achieve industrialization. Therefore, the beam-column joints of the steel structure system should be easy to install, especially the bolt connections in the joints should be easy for workers to install and fasten. In the current engineering The nodes used in the example have the following deficiencies:

The upper and lower flanges of the middle beam and the web of the traditional all-welded joint are welded together with the square steel pipe column on site. This connection method not only has poor ductility, but also has too many welding parts, resulting in more residual stress. In addition, it also hinders the process of industrialization. As for the full-bolt connection, the traditional connection method is to carry out full-bolt connection between the beam end sealing plate and the column, but this connection method requires workers to put their hands into the square steel pipe column when tightening the bolts, which brings great inconvenience to the construction. At the same time, the bolt holes weaken the column section, which greatly reduces the mechanical performance of the joint.

Contents of the invention

The invention aims to provide a connection structure between an assembled truss beam and a square steel pipe column, which improves the defects of the existing joints in the current engineering examples and improves the bearing capacity of the beam-column joints.

The invention provides a connection structure between an assembled truss beam and a square steel pipe column. The upper and lower sides of the square steel pipe column are respectively provided with an upper column seat and a lower column seat, and the two sides are connected with the truss beam;

The center of the square steel pipe column is a square prism, the top and bottom of the square prism are respectively connected to the first flange and the second flange, the two sides of the square prism are connected to the H-shaped connector, and the H-shaped connector is equipped with a connecting plate outside, and the connecting plate Evenly provided with bolt holes;

The truss beam includes web members and channel steel beams. The upper part of the web members is the upper chord and the lower part is the lower chord. beam connection;

The upper column seat includes the upper column of square steel pipe and the third flange; the lower column seat includes the lower column of square steel pipe and the fourth flange; the third flange is connected with the first flange, and the fourth flange is connected with the second flange.

Further, the upper and lower sides of the square prism are welded to the first flange and the second flange, and the two sides are welded to the H-shaped connector, and connecting plates are respectively welded on the outside of the H-shaped connector.

Further, bolt holes are provided on the bottom surface of the wing plate and the channel steel beam; the bolt holes on the wing plate correspond to the bolt holes on the first flange and the second flange, and the bolt holes on the channel steel beam correspond to the bolt holes on the square The bolt holes of the connection plate on the outside of the steel pipe column correspond; connect the truss beam to the square steel pipe column.

Further, the web and the upper and lower chords are square steel pipes, the web and the upper and lower chords are welded on the inside of the upper and lower chords, and the two web nodes intersect at the connection between the upper and lower chords and the web; The end of the channel steel beam with bolt holes is connected with the ends of the connected upper and lower chords; the truss beam is connected with the square steel pipe column through bolts.

Further, the upper column of the square steel pipe is welded to the third flange; the lower column of the square steel pipe is welded to the fourth flange; the third flange is connected to the first flange through bolts, and the fourth flange is connected to the second flange through Bolted.

In the assembled structure of the present invention, the above-mentioned three major parts are welded in the factory, and after being transported to the construction site, the three parts are quickly connected by bolts without welding process, which greatly speeds up the construction speed and shortens the construction period.

Beneficial effects of the present invention:

(1) Compared with the traditional connection method, the truss beam, column base and square steel pipe column are welded in the factory, and then only need to be connected by bolts after being transported to the construction site, which greatly reduces the construction period and speeds up the work efficiency of workers.

(2) The web members are square steel pipes to enhance the bearing capacity of the truss beams, and the square steel tube chords can enhance the flexural bearing capacity of the truss beams. The combination of the two structures increases the bearing capacity of the entire truss beams; at the same time, the gaps in the truss beams It is convenient for the installation of pipelines, and avoids damage to the building structure caused by drilling holes when the building structure is erected for water heating and electricity.

Description of drawings

Fig. 1 is the structural representation of square steel pipe column of the present invention;

Fig. 2 is the structural representation of truss girder of the present invention;

Fig. 3 is a schematic structural view of the upper column seat of the present invention;

Fig. 4 is a schematic diagram of the assembly process of the present invention;

Fig. 5 is the assembly rendering of the present invention;

Fig. 6 is a front view of Fig. 5 .

In the figure, 1 is the first flange, 2 is the second flange, 3 is the square prism, 4 is the H-shaped connector, 5 is the connecting plate, 6 is the upper chord, 7 is the lower chord, 8 is the web, 9 is the Channel steel beam, 10 is the third flange, 11 is the upper column of the square steel pipe, 12 is the lower column of the square steel pipe, 13 is the fourth flange, 14 is the bolt hole, and 15 is the bolt.

Detailed ways

The present invention is further illustrated by the following examples, but not limited to the following examples.

Example:

As shown in Figures 1 to 5, the present invention provides a connection structure between an assembled truss beam and a square steel pipe column. The upper and lower sides of the square steel pipe column are respectively provided with an upper column base and a lower column base, and both sides are connected to the truss beam;

The center of the square steel pipe column is a square prism 3, and the upper and lower sides of the square prism 3 are respectively connected to the first flange 1 and the second flange 2. There is a connecting plate 5, and the connecting plate 5 is uniformly provided with bolt holes 14;

The truss beam includes a web member 8 and a channel steel beam 9. The upper part of the web member 8 is the upper chord 6 and the lower part is the lower chord 7. The upper chord 6 and the lower chord 7 are hollow quadrangular prism structures, and a wing is provided on one surface of the end. plate, the wing plate is connected with the channel steel beam 9;

The upper column seat includes a square steel pipe upper column 11 and the third flange 10; the lower column seat includes a square steel pipe lower column 12 and a fourth flange 13; the third flange 10 is connected with the first flange 1, and the fourth flange 13 Connect with the second flange 2.

The upper side and the lower side of the square prism 3 are respectively welded with the first flange 1 and the second flange 2 , and the two sides are welded with the H-shaped connector 4 , and the outside of the H-shaped connector 4 is respectively welded with connecting plates 5 .

Bolt holes 14 are provided on the bottom surface of the wing plate and the channel steel beam 9; the bolt holes on the wing plate correspond to the bolt holes on the first flange 1 and the second flange 2, and the bolt holes on the channel steel beam 9 Corresponding to the 5 bolt holes of the connecting plate on the outside of the square steel pipe column; connect the truss beam to the square steel pipe column.

The web and the upper and lower chords are square steel pipes, the web 8 and the upper and lower chords are welded on the inside of the upper and lower chords, and the nodes of the two webs intersect at the joints of the upper and lower chords and the webs; The end of the channel steel beam with bolt holes is connected with the ends of the upper and lower chords; the truss beam is connected with the square steel pipe column through bolts.

The upper column 11 of the square steel pipe is welded to the third flange 10; the lower column 12 of the square steel pipe is welded to the fourth flange 13; the third flange 10 is connected to the first flange 1 by bolts; the fourth flange 13 is connected to the fourth flange 1; The two flanges 2 are connected by bolts.

When in use, the above-mentioned three major parts are welded in the factory, and after being transported to the construction site, these three parts are quickly connected at the corresponding positions by bolts 15, and no welding is required on site.

Claims (5)

1. A connection structure between an assembled truss beam and a square steel pipe column, characterized in that: the square steel pipe column is respectively provided with an upper column base and a lower column base, and both sides are connected with the truss beam; The center of the square steel pipe column is a square prism, the top and bottom of the square prism are respectively connected to the first flange and the second flange, the two sides of the square prism are connected to the H-shaped connector, and the H-shaped connector is equipped with a connecting plate outside, and the connecting plate Evenly provided with bolt holes; The truss beam includes web members and channel steel beams. The upper part of the web members is the upper chord and the lower part is the lower chord. beam connection; The upper column seat includes the upper column of square steel pipe and the third flange; the lower column seat includes the lower column of square steel pipe and the fourth flange; the third flange is connected with the first flange, and the fourth flange is connected with the second flange. 2. The connection structure between the fabricated truss beam and the square steel pipe column according to claim 1, characterized in that: the upper and lower sides of the regular square prism are welded to the first flange and the second flange, and both sides are connected to the H shape The parts are welded, and the outside of the H-shaped connectors are respectively welded with connecting plates. 3. The connection structure between the assembled truss beam and the square steel pipe column according to claim 1, characterized in that: the bottom surface of the wing plate and the channel steel beam is provided with a bolt hole; the bolt hole on the wing plate is connected with the first The bolt holes on the flange and the second flange correspond, and the bolt holes on the channel steel beam correspond to the bolt holes on the connecting plate outside the square steel pipe column; connect the truss beam to the square steel pipe column. 4. The connection structure between the fabricated truss beam and the square steel pipe column according to claim 1, characterized in that: the web and the upper and lower chords are square steel pipes, and the web and the upper and lower chords are welded to the upper and lower chords At the same time, the two web nodes intersect at the connection between the upper and lower chords and the web; the end of the channel steel beam with bolt holes is connected to the end of the upper and lower chord; the truss beam is connected to the square steel pipe column through bolts. 5. The connection structure between the assembled truss beam and the square steel pipe column according to claim 1, characterized in that: the upper column of the square steel pipe is welded to the third flange; the lower column of the square steel pipe is welded to the fourth flange; The third flange is connected to the first flange by bolts, and the fourth flange is connected to the second flange by bolts.