CN205329866U - A beam column node structure that what was used for steel frame systems has an end plate stiffener - Google Patents

Abstract

An embodiment of the utility model provides a beam column node structure that what was used for steel frame systems has an end plate stiffener, include: steel -frame pillar, steel -frame pillar's tip fixed connection is on the overhang -type beam -ends board that has the end plate stiffener, and steel -frame pillar includes: a steel -frame pillar and the 2nd steel -frame pillar, a steel -frame pillar connects on the overhang -type styletable board of the strong axle orientation of steel -frame pillar through the overhang -type beam -ends board that has the end plate stiffener, the 2nd steel -frame pillar connects on steel -frame pillar's overhanging parts through the beam -ends board that has the end plate stiffener, the utility model provides a having the beam column node structure of end plate stiffener, having better ductility and higher intensity and rigidity and make simple process, construction easy operation makes things convenient for construction speed fast in a flexible way, anti -seismic performance characteristic such as good, and when the steel frame adopted this node structure, the damping that can increase the structure prolonged the structure cycle, thus it can reduce the earthquake to reduce the amplitude, is convenient for transport steel member and steel structure engineering's installation simultaneously.

Description

A beam-column joint structure with end plate stiffeners for steel frame systems

technical field

The embodiment of the utility model relates to the technical field of integrated assembled steel frames, in particular to a beam-column joint structure with end plate stiffeners for a steel frame system.

Background technique

At present, steel frame structures are widely used in the field of building structures because of their light weight, high strength, large span, convenient construction, and environmental protection.

In the design of steel frame structures, the steel beam-steel column connection is one of the important contents of the steel structure design. The steel beam-steel column connection is an important part of the transfer of bending moment and shear force, which directly affects the The overall performance and the load-bearing performance of its connected components. The Northridge Earthquake in the United States in 1994 and the Hanshin Earthquake in Japan in 1995 showed that rigid beam-column joints with fully bolted or bolted welded connections had poor ductility. At present, steel beam-column joints in steel frame structures mainly have overhang There are two methods of corbel-type full-bolt connection and bolt-welding hybrid connection. The extended corbel-type full-bolt connection is not convenient for long-distance transportation of steel column members. The field welding quality in the bolt-weld hybrid connection is difficult to control and prone to Pores, slag inclusions, lack of fusion, lack of penetration and many other quality defects cannot meet the requirements of the building structure.

Therefore, a new type of beam-column joint structure with better ductility and higher strength and stiffness needs to be proposed urgently.

Utility model content

The embodiment of the utility model provides a beam-column joint structure with end plate stiffeners for the steel frame system to solve the technical defect of poor ductility of beam-column joints in the prior art, and the manufacturing process is simple and the construction speed Fast and convenient for transportation of steel components and installation of steel structure works.

The embodiment of the utility model provides a beam-column node structure with an end plate stiffener for a steel frame system, including:

A steel frame beam, the end of the steel frame beam is fixedly connected to the end plate of the extended beam with an end plate stiffener, and the steel frame beam includes: a first steel frame beam and a second steel frame beam;

The first steel frame beam is connected to the overhanging column end plate in the strong axis direction of the steel frame column through the overhanging beam end plate with the end plate stiffener;

The second steel frame beam is connected to the outrigger of the steel frame column through the outrigger beam end plate with end plate stiffener.

Preferably, the end of the steel frame beam is connected to the end plate of the overhanging beam with end plate stiffener by welding.

Preferably, the overhanging beam end plate with the end plate stiffener and the overhanging column end plate in the strong axis direction of the steel frame column are provided with a plurality of corresponding bolt holes, according to the bolt holes, the The overhanging beam end plate with the end plate stiffener is connected to the overhanging column end plate in the strong axis direction of the steel frame column through bolts.

Preferably, the overhanging part of the steel frame column includes: an overhanging plate and an overhanging column end plate in the direction of the weak axis of the steel frame column, and one end of the overhanging plate is fixedly connected to the steel frame column , the other end of the outrigger plate is fixedly connected with an outrigger column end plate in the direction of the weak axis of the steel frame column with an end plate stiffener.

Preferably, one end of the outrigger plate is connected to the steel frame column by welding, and the other end of the outrigger plate is connected to the outer edge of the steel frame column in the weak axis direction with the end plate stiffener. The connection method of the extension column end plate is welding.

Preferably, the second steel frame beam is connected to the overhanging column in the direction of the weak axis of the steel frame column with end plate stiffener through the end plate of the outrigger beam with end plate stiffener. end plate.

Preferably, a plurality of corresponding Bolt holes, according to the bolt holes, the overhanging beam end plate with the end plate stiffener is connected to the overhanging column end plate in the weak axis direction of the steel frame column with the end plate stiffener through bolts superior.

Preferably, the steel frame beam and the steel frame column are welded H-shaped steel or hot-rolled H-shaped steel, wherein, the steel frame column is fixedly provided with stiffeners, and the positions of the stiffeners include: the steel frame Corresponding position on the column along the flange extension line of the steel frame beam.

In addition, preferably, the stiffeners are welded to the steel frame columns.

The beam-column joint structure with end plate stiffeners for the steel frame system provided by the embodiment of the utility model has good ductility and high strength and rigidity, and the manufacturing process is simple, the construction operation is simple, flexible and convenient, The construction speed is fast and the seismic performance is excellent. When the steel frame adopts this node structure, the damping of the structure can be increased, the structural period can be extended, and the amplitude can be reduced, thereby reducing earthquake damage. At the same time, it is convenient for the transportation of steel components and the installation of steel structure projects .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the appended drawings in the following description The drawings show some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is the schematic diagram of the beam-column node structure with end plate stiffener in the utility model embodiment;

Fig. 2 is a left view of the beam-column joint structure with end plate stiffeners in Fig. 1 of the utility model embodiment;

Fig. 3 is a top view of the beam-column node structure with end plate stiffeners in Fig. 2 of the embodiment of the utility model;

Fig. 4 is a schematic diagram of an overhanging beam end plate in an embodiment of the present invention;

Fig. 5 is a schematic diagram of the application of the beam-column joint structure with end plate stiffeners in the column in the embodiment of the utility model.

Reference signs:

1a: first steel frame beam; 1b: second steel frame beam; 2: outrigger end plate; 3: stiffener; 4: bolt hole; 5: steel frame column; 6: end plate stiffener; 7: Outrigger plate; 8: outrigger column end plate in the weak axis direction of the steel frame column; 9: outrigger column end plate in the strong axis direction of the steel frame column.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the current existing technology, rigid beam-column joints with fully bolted or bolt-welded connections have poor ductility, while beam-column joints with end plate stiffeners have better ductility and higher strength and stiffness. When the frame adopts this joint, it can increase the damping of the structure, prolong the structural period, reduce the amplitude, and thus reduce the earthquake damage. It is one of the preferred joint forms in the seismic design.

When the span of the steel frame is small, the bearing capacity of the end plate frame joints without haunches can meet the requirements in the direction of the strong axis of the steel frame column. In the direction of the weak axis of the steel frame column, the end plate of the overhanging “corbel” is connected with the end plate of the steel frame beam to form a semi-rigid joint. Stiffness, at the same time, the end plate stiffener can also reduce the thickness of the end plate. At the same time, this node connection method is convenient for the transportation of steel components and the installation of steel structure projects. In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

Fig. 1 is the schematic diagram of the beam-column node structure with the end plate stiffener in the embodiment of the utility model, Fig. 2 is the left view of the beam-column node structure with the end plate stiffener in Fig. 1 of the utility model embodiment, Fig. 3 is a top view of the beam-column joint structure with end plate stiffeners in Figure 2 of the embodiment of the utility model, as shown in Figure 1-3:

The embodiment of the utility model provides a beam-column node structure with an end plate stiffener 6 for a steel frame system, comprising: a steel frame beam, the end of the steel frame beam is fixedly connected to the end plate stiffener 6 On the extended beam end plate 2, the steel frame beam includes: a first steel frame beam 1a and a second steel frame beam 1b; the first steel frame beam 1a passes through the extended beam end plate 2 with an end plate stiffener 6 Connected to the steel frame column 5 in the strong axis direction of the extended column end plate 9; the second steel frame beam 1b is connected to the weak axis direction of the steel frame column 5 through the extended beam end plate 2 with the end plate stiffener 6 On the outrigger column end plate 8.

In order to facilitate on-site installation, the end of the steel frame beam is fixedly connected to the overhanging beam end plate 2, and at the same time, in order to improve the bearing capacity of the joint, the steel frame column 5 is fixedly connected to the overhanging column end plate in the direction of the strong axis of the steel frame column 9 and an overhanging part, the overhanging part includes: an outrigger plate 7 and an overhanging column end plate 8 in the direction of the weak axis of the steel frame column, one end of the outrigger plate 7 is fixed to the steel frame column The other end of the outrigger plate is fixedly connected with the outrigger column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener. The overhanging column end plate 9 in the direction of the strong axis of the steel frame column fixedly connected to the steel frame column 5 can be partially replaced with a thicker plate. The frame beam is connected to the outrigger column end plate of the steel frame column 5 through the outrigger beam end plate 2 . The end plate fixedly connected with the steel frame beam is an overhanging end plate 2 with an end plate stiffener 6. Setting the end plate stiffener 6 at the corresponding position of the overhanging end plate 2 can improve the stiffness of the beam-column joint. At the same time, the outer The end plate stiffener 6 of the extended end plate 2 can reduce the thickness of the end plate, which is convenient for the factory to process components and save the material of the end plate. Preferably, the connection between the end of the steel frame beam and the end plate 2 of the overhanging beam with the end plate stiffener 6 is welding. The welded fixed connection can well ensure the connection strength between the steel frame beam and the overhanging beam end plate 2 with the end plate stiffener 6, and there is no obvious protrusion after welding, which does not affect the integrity of the entire building structure. beautiful.

The steel frame beams include a first steel frame beam 1a and a second steel frame beam 1b, the first steel frame beam 1a is directly connected to the steel frame column 5 in the direction of the strong axis through the outrigger beam end plate 2 with the end plate stiffener 6 The overhanging column end plate 9 is connected. Preferably, there are a plurality of corresponding According to the bolt holes 4, the outstretched beam end plate 2 with the end plate stiffener 6 is connected to the outstretched column end plate 9 in the strong axis direction of the steel frame column 5 by bolts. The overhanging beam end plate 2 with the end plate stiffener 6 and the overhanging column end plate 9 in the strong axis direction of the steel frame column 5 are provided with a plurality of bolt holes 4, and the end plate with the end plate stiffener 6 The bolt holes 4 on the overhanging beam end plate 2 and the bolt holes 4 on the overhanging column end plate in the direction of the strong axis of the steel frame column 5 are set correspondingly, in order to connect the stiffened plate with the end plate through high-strength bolts. The overhanging beam end plate 2 of 6 and the overhanging column end plate 9 in the strong axis direction of the steel frame column 5 are connected together so as to form a semi-rigid connection structure. The way of connecting by bolts can increase the speed of construction, the construction operation is simple, and the installation and disassembly of steel components are convenient.

The second steel frame beam 1b is connected to the outrigger part of the steel frame column 5 through the outrigger beam end plate 2 with the end plate stiffener 6, preferably, the outrigger part of the steel frame column 5 includes: Plate 7 and the outrigger column end plate 8 in the direction of the weak axis of the steel frame column 5, one end of the outrigger plate 7 is fixedly connected with the steel frame column 5, and the other end of the outrigger plate 7 is fixedly connected with an end plate stiffener Plate 6 is an overhanging column end plate 8 in the direction of the weak axis of the steel frame column. In order to connect the second steel frame beam 1b on the steel frame column 5, an overhanging part needs to be set on the steel frame column 5, and the overhanging part includes an overhanging plate 7 and an overhanging column in the direction of the weak axis of the steel frame column 5 One end of the end plate 8 and the overhanging plate 7 are fixedly connected with the steel frame column 5, and the other end is fixedly connected with the overhanging column end plate 8 in the direction of the weak axis of the steel frame column with the end plate stiffener 6. Preferably, one end of the outrigger plate 7 is connected to the steel frame column 5 by welding, and the other end of the outrigger plate 7 is connected to the outrigger column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 The connection method is welding. Welding can provide good connection strength without affecting the aesthetics of the entire structure. Wherein, the shape and structure of the overhanging column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 is consistent with the shape and structure of the overhang beam end plate 2 with the end plate stiffener 6 .

The second steel frame beam 1b is connected to the outrigger part of the steel frame column 5, preferably, the second steel frame beam 1b is connected to the outrigger beam end plate 2 with the end plate stiffener Plate 6 is on the end plate 8 of the extended column in the direction of the weak axis of the steel frame column. The second steel frame beam 1b connects the outrigger column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 through the outrigger beam end plate 2 with the end plate stiffener 6, thereby connecting the overhang components, and then connected with steel frame columns 5 to form a semi-rigid connection structure.

Preferably, a plurality of corresponding bolt holes 4 are provided on the overhanging beam end plate 2 with the end plate stiffener 6 and the column end plate 8 in the direction of the weak axis of the steel frame column with the end plate stiffener 6, according to The bolt hole 4, the outrigger beam end plate 2 with the end plate stiffener 6 is connected to the column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 by bolts. The overhanging beam end plate 2 with the end plate stiffener 6 and the overhanging column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 are provided with a plurality of bolt holes 4, and the The bolt holes 4 on the overhanging beam end plate 2 with the end plate stiffener 6 and the overhanging column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 are set correspondingly. Bolts connect the overhanging beam end plate 2 with the end plate stiffener 6 and the overhanging column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6 together.

Steel frame beams and steel frame columns 5 can be welded H-shaped steel or hot-rolled H-shaped steel. In order to meet the structural requirements of the beam-column joints, stiffeners 3 need to be set at the corresponding positions of the steel columns. Preferably, the steel frame beams and steel frame columns 5 are welded H-shaped steel. Shaped steel or hot-rolled H-shaped steel, wherein the steel frame column 5 is fixedly provided with stiffeners 3, and the positions of the stiffeners 3 include: corresponding positions on the steel frame column 5 along the flange extension line of the steel frame beam. In addition, preferably, the stiffeners 3 are welded on the steel frame columns 5 . Stiffeners are arranged on the steel frame column 5 at positions corresponding to the extension lines of the flanges of the steel frame beams, and the thickness of the end plate and the thickness of the end plate stiffener 3 can be calculated.

The extended beam end plate and the extended column end plate provided by the utility model both have end plate stiffeners.

The beam-column node structure with end plate stiffeners provided by the utility model for the steel frame system can be applied to the column tops and columns of the multi-layer steel frame structure. Schematic diagram of the beam-to-column joint structure of a slab-stiffened slab applied in a column.

A fabrication method of a beam-column joint structure with end plate stiffeners for a steel frame system is described below:

1. Weld the overhanging beam end plate 2 with the end plate stiffener 6 on the steel frame beam;

2. Weld one end of the outrigger plate 7 to the steel frame column 5, and weld the other end to the outrigger column end plate 8 in the direction of the weak axis of the steel frame column with the end plate stiffener;

3. Use high-strength bolts to connect the first steel frame beam 1a and the steel frame column 5 outwardly extending column end plate 9 in the direction of the strong axis;

4. Use high-strength bolts to connect the second steel frame beam 1b and the extended column end plate 8 in the weak axis direction of the steel frame column with the end plate stiffener 6;

5. Complete the beam-column joint structure of the steel structure house for the steel frame system.

In summary, the beam-column joint structure with end plate stiffeners for the steel frame system provided by the embodiment of the utility model has good ductility and high strength and rigidity, and the manufacturing process is simple, and the construction operation Simple, flexible and convenient, fast construction speed, excellent seismic performance and other characteristics, when the steel frame adopts this node structure, it can increase the damping of the structure, prolong the structural period, reduce the amplitude, thereby reducing earthquake damage, and at the same time facilitate the transportation of steel components and Installation of steel structures.

The device embodiments described above are only illustrative, and the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed to multiple network elements. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without any creative effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit of the technical solutions of the various embodiments of the present invention. and range.

Claims (9)

1. A beam-column joint structure with an end plate stiffener for a steel frame system, characterized in that it comprises: A steel frame beam, the end of the steel frame beam is fixedly connected to the end plate of the extended beam with an end plate stiffener, and the steel frame beam includes: a first steel frame beam and a second steel frame beam; The first steel frame beam is connected to the overhanging column end plate in the strong axis direction of the steel frame column through the overhanging beam end plate with the end plate stiffener; The second steel frame beam is connected to the outrigger of the steel frame column through the outrigger beam end plate with end plate stiffener. 2. The beam-to-column joint structure with end plate stiffeners according to claim 1, characterized in that, the ends of the steel frame beams and the ends of the overhanging beam end plates with end plate stiffeners The connection method is welding. 3. The beam-column joint structure with end plate stiffeners according to claim 1, characterized in that, the overhanging beam end plate with end plate stiffeners and the steel frame column strong axis direction There are a plurality of corresponding bolt holes on the end plate of the extended column. According to the bolt holes, the end plate of the extended beam with the end plate stiffener is connected by bolts to the overhanging beam in the direction of the strong axis of the steel frame column. column end plate. 4. The beam-to-column joint structure with end plate stiffeners according to claim 1, characterized in that, the overhanging parts of the steel frame column include: the overhang plate and the weak axis direction of the steel frame column An overhanging column end plate, one end of the overhanging plate is fixedly connected to the steel frame column, and the other end of the overhanging plate is fixedly connected with an end plate stiffener in the direction of the weak axis of the steel frame column Outrigger column end plate. 5. The beam-column node structure with end plate stiffeners according to claim 4, characterized in that, one end of the outrigger plate is connected to the steel frame column by welding, and the outrigger plate The other end is connected to the end plate of the extended column in the weak axis direction of the steel frame column with the end plate stiffener by welding. 6. The beam-column joint structure with end plate stiffeners according to claim 4, wherein the second steel frame beam is connected to the The end plate of the overhanging column in the direction of the weak axis of the steel frame column with the end plate stiffener. 7. The beam-column joint structure with end plate stiffeners according to claim 6, characterized in that, the overhanging beam end plate with end plate stiffeners and the end plate with end plate stiffeners A plurality of corresponding bolt holes are provided on the end plate of the extended column in the direction of the weak axis of the steel frame column. According to the bolt holes, the beam end plate with the end plate stiffener is connected to the end plate with the end plate The plate stiffener is the overhanging column end plate in the direction of the weak axis of the steel frame column. 8. The beam-column joint structure with end plate stiffeners according to any one of claims 1-7, wherein the steel frame beam and the steel frame column are welded H-shaped steel or hot-rolled H-shaped steel , wherein, the steel frame column is fixedly provided with a stiffener, and the position of the stiffener includes: a corresponding position on the steel frame column along the extension line of the flange of the steel frame beam. 9. The beam-column joint structure with end plate stiffeners according to claim 8, wherein the stiffeners are welded to the steel frame columns.