Steel beam and steel column connecting structure

Abstract

The utility model relates to a steel beam and steel column connecting structure and relates to the technical field of steel beam construction, the connecting structure comprises a steel column, the steel column is provided with a first steel beam through a first connecting assembly, the steel column is provided with a second steel beam through a second connecting assembly, and the first connecting assembly comprises an inter-rib stiffening plate arranged on the side wall of a web of the steel column; the first connecting beam is welded on the side wall of a web of the steel column; and the locking piece is arranged on the first connecting beam and locks and fixes the first steel beam. The inter-rib stiffening plate and the first connecting beam are welded to the steel column in advance, the first steel beam is locked to the first connecting section through the locking piece, so that the first steel beam is fixedly installed on the steel column, and then the second steel beam is fixedly installed on the side wall of the steel column through the second connecting assembly; therefore, the second steel beam is locked on the steel column, the installation efficiency between the steel beam and the steel column is improved, and the bearing capacity and the anti-seismic capacity of the connecting joint are enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel beam construction, in particular to a steel beam and steel column connecting structure. BACKGROUND

[0002] With the development of social economy and the acceleration of urban construction, high-rise buildings and large-span structures are increasingly attracting people's attention. The selection of building materials, the design of construction details and the safety performance of such buildings are extremely demanding. Especially the steel beams and steel columns as load-bearing structures, the connecting joints between them directly affect the stability and durability of the entire structure system. At present, the common connecting methods of steel beams and steel columns mainly include welding, bolt connection and the like, which have been widely applied in actual engineering.

[0003] In the traditional method, in order to ensure sufficient connecting strength, the steel beam and the steel column are usually tightly connected by welding. However, the welding operation not only takes a long time, but also has a very high requirement for the quality of the joint. Once the welding is poor, it is easy to form a safety hazard, and since the steel beam is heavy, the welding difficulty is also increased. Another commonly used connecting method is to connect the two by high-strength bolts. Although this method can reduce the on-site operation time, when encountering extreme conditions such as earthquakes, the bolts may loosen or even break. CONTENT OF THE INVENTION

[0004] In order to improve the installation efficiency between the steel beam and the steel column and enhance the bearing capacity and the anti-seismic capacity of the connecting joint, the application provides a steel beam and steel column connecting structure.

[0005] The steel beam and steel column connecting structure provided by the application adopts the following technical scheme:

[0006] A steel beam and steel column connecting structure, comprising a steel column, the steel column is an I-beam, a first steel beam is arranged on the web side wall of the steel column through a first connecting assembly, a second steel beam is arranged on the flange end face of the steel column through a second connecting assembly, the first steel beam and the second steel beam are both I-beams, and the first connecting assembly comprises:

[0007] An inter-rib stiffened plate is arranged vertically on the web side wall of the steel column;

[0008] A first connecting beam is arranged on the inter-rib stiffened plate and welded on the web side wall of the steel column, the inter-rib stiffened plate supports the bottom of the first connecting beam, and the end face of the first steel beam abuts against the end face of the first connecting segment;

[0009] A locking piece is arranged on the first connecting beam and locks and fixes the first steel beam.

[0010] By adopting the technical scheme, the intercostal stiffened plate and the first connecting beam are welded on the steel column in advance, then the first steel beam is abutted on the first connecting section, the first steel beam is locked on the first connecting section by the locking piece, so as to realize the fixed installation of the first steel beam on the steel column, then the second steel beam is fixedly installed on the side wall of the steel column through the second connecting assembly, so as to lock the second steel beam on the steel column, improve the installation efficiency between the steel beam and the steel column, and enhance the bearing capacity and the anti-seismic capacity of the connecting joint.

[0011] Further, the first connecting beam is an I-shaped steel with the same model as the first steel beam, the locking piece comprises:

[0012] locking plates, the locking plates are arranged on the web side walls of the first connecting beam, the locking plates are arranged in two groups and are respectively located on the opposite side walls of the web of the first connecting beam, the web of the first steel beam is abutted on the web end face of the first connecting section and is located between the two groups of locking plates;

[0013] locking bolts, the locking bolts are sequentially threaded through the locking plates, the web of the first steel beam, the other group of locking plates and are locked by the locking nuts.

[0014] By adopting the technical scheme, the two groups of locking plates are arranged on the opposite side walls of the web of the first connecting beam, then the first steel beam is inserted and installed between the two groups of locking plates and is abutted on the end face of the first connecting beam, then the locking plates and the first steel beam are fixedly connected by the locking bolts and the locking nuts, so as to lock the first steel beam on the first connecting beam.

[0015] Further, the flange sides of the first connecting beam are provided with extension sections, the extension sections are abutted on the side walls of the opposite sides of the flange of the steel column and are welded.

[0016] By adopting the technical scheme, the extension sections are welded on the side walls of the opposite sides of the flange of the steel column, so as to improve the connecting strength between the first connecting beam and the steel column.

[0017] Further, the second connecting assembly comprises:

[0018] beam-column connecting plates, the beam-column connecting plates are welded on the flange side walls of the steel column, the second steel beam is abutted on the flange side walls of the steel column and the beam-column connecting plates are abutted on the web side walls of the second steel beam;

[0019] fixing bolts, the fixing bolts are threaded through the beam-column connecting plates and the web of the second steel beam and are threadedly locked by the fixing nuts.

[0020] By adopting the technical scheme, the beam-column connecting plate is pre-welded on the flange side wall of the steel column, then the second steel beam is abutted against the flange side wall of the steel column, and the web of the second steel beam is abutted against the beam-column connecting plate side wall, finally the second steel beam is locked on the steel column side wall through the locking and fixing of the fixing bolts and the fixing nuts.

[0021] Further, the flange side wall of the steel column is provided with a support for supporting and fixing the bottom of the second steel beam.

[0022] By adopting the technical scheme, the support supports and fixes the bottom of the second steel beam, thereby improving the stability of the second steel beam.

[0023] Further, the support comprises:

[0024] A support rib plate, one end of the support rib plate is arranged on the flange side wall of the steel column, one end of the support rib plate is arranged on the bottom of the second steel beam, and the support rib plate has a certain inclination angle with the axis direction of the second steel beam

[0025] A rib plate, the rib plate is arranged vertically on one end of the support rib plate close to the second steel beam, and the rib plate is abutted against and arranged on the bottom of the second steel beam away from the support rib plate.

[0026] By adopting the technical scheme, the support rib plate is used for diagonally supporting the bottom of the second steel beam, and the rib plate is used for strengthening the support strength between the support rib plate and the bottom of the second steel beam, thereby improving the stability of the second steel beam.

[0027] Further, the second steel beam is provided with a reinforcing rib at the connection with the support rib plate, two groups of the reinforcing ribs are arranged on the opposite side walls of the web of the second steel beam, and the opposite end faces of the reinforcing rib are abutted against and arranged on the end faces of the opposite sides of the flange of the second steel beam.

[0028] By adopting the technical scheme, the reinforcing rib enhances the bending strength of the connection between the second steel beam and the support rib plate, thereby reducing the probability of deformation of the connection between the second steel beam and the support rib plate due to long-term stress.

[0029] Further, the steel column is provided with a support block for supporting and fixing the flange bottom of the second steel beam.

[0030] By adopting the technical scheme, the support block supports the flange bottom of the second steel beam during installation, thereby reducing the probability of downward movement of the second steel beam during installation, and thereby improving the installation quality of the second steel beam.

[0031] In summary, the present application has at least one of the following beneficial technical effects:

[0032] By pre-welding the interrib stiffening plate, the first connecting beam, and the beam-column connecting plate onto the steel column, and then pressing the first steel beam against the first connecting section, fixing two sets of locking plates onto the first connecting beam, and then snapping the first steel beam between the two sets of locking plates and pressing it against the end face of the first connecting section, the first steel beam is finally locked onto the first connecting section using locking bolts and locking nuts. This achieves the fixation of the first steel beam onto the steel column. Then, the second steel beam is pressed against the flange sidewall of the steel column, and the web of the second steel beam is fixedly connected to the beam-column connecting plate using fixing bolts. This locks the second steel beam onto the steel column, improving the installation efficiency between the steel beam and the steel column and enhancing the load-bearing capacity and seismic resistance of the connection node. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the steel beam and steel column connection structure of this application;

[0034] Figure 2 This is a front view of this application;

[0035] Figure 3 This is a side view of this application.

[0036] Reference numerals: 1. Steel column; 2. First steel beam; 3. Second steel beam; 4. First connecting assembly; 41. Rib stiffening plate; 42. First connecting beam; 421. Extension section; 43. Locking element; 431. Locking plate; 432. Locking bolt; 5. Second connecting assembly; 51. Beam-column connecting plate; 52. Fixing bolt; 6. Support block; 7. Support element; 71. Support stiffener plate; 72. Rib plate; 8. Reinforcing rib. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0038] This application discloses a steel beam and steel column connection structure.

[0039] Reference Figure 1 and Figure 2 A steel beam and steel column connection structure includes a steel column 1, which is an I-beam. A first steel beam 2 is provided on the web sidewall of the steel column 1 through a first connecting component 4, and a second steel beam 3 is provided on the flange end face of the steel column 1 through a second connecting component 5. Both the first steel beam 2 and the second steel beam 3 are I-beams.

[0040] Reference Figure 1 , Figure 2 and Figure 3The first connecting assembly 4 includes an interrib stiffening plate 41 and a first connecting beam 42. The interrib stiffening plate 41 is vertically installed on the web sidewall of the steel column 1 and is fixed to the web sidewall of the steel column 1 by welding. The first connecting beam 42 is placed on the upper surface of the interrib stiffening plate 41 to support the bottom of the first connecting beam 42 near the steel column 1. The first connecting beam 42 is an I-beam of the same type but different length as the first connecting beam 42. The end face of the first connecting beam 42 is fixed to the web sidewall of the steel column 1 by welding. At the same time, extension sections 421 are provided on both sides of the flange of the first connecting beam 42. The extension sections 421 are integrally cast with the flange of the first connecting beam 42. The part of the extension section 421 away from the first connecting beam 42 abuts against the sidewall of the opposite side of the flange of the steel column 1, and the extension section 421 is fixed to the flange of the steel column 1 by welding.

[0041] Reference Figure 1 and Figure 2 In this embodiment, the first connecting beam 42 is relatively short, which facilitates the stable welding and fixing of the first connecting beam 42 to the steel column 1. At the same time, the first connecting beam 42 can be pre-welded and fixed to the steel column 1 before the steel column 1 is installed, thereby reducing the connection difficulty between the first connecting beam 42 and the steel column 1, and also improving the welding quality between the first connecting beam 42 and the steel column 1. In this embodiment, a set of first connecting components 4 are provided on both opposite ends of the steel column 1 to balance the forces at both ends of the steel column 1.

[0042] Reference Figure 1 and Figure 2 The first connecting assembly 4 also includes a locking member 43, which is disposed on the first connecting beam 42. The locking member 43 is used to lock the first steel beam 2 onto the first connecting beam 42. The locking member 43 includes a locking plate 431 and a locking bolt 432. The locking plate 431 is disposed on the side wall of the web of the first connecting beam 42. There are two sets of locking plates 431, which abut against opposite side walls of the web of the first connecting beam 42 respectively. The bolt passes through the locking plate 431 and the web of the first connecting beam 42 in sequence. The locking plates 431 are fixed together with another set of locking plates 431 by threads and nuts, so that the two sets of locking plates 431 are fixedly connected to the first connecting beam 42. The locking bolts 432 pass through the locking plates 431, the web of the first steel beam 2 and the other set of locking plates 431 in sequence, and are finally locked by locking nuts. At the same time, multiple sets of locking bolts 432 are provided to improve the connection strength between the locking plates 431 and the first steel beam 2, so that the first steel beam 2 is fixedly installed on the first connecting beam 42.

[0043] Reference Figure 1 and Figure 2When installing the first steel beam 2, the web of the first steel beam 2 is snapped between two sets of locking plates 431. Then, the first steel beam 2 is moved closer to the steel column 1, so that the end face of the first steel beam 2 is pressed against the end face of the first connecting section. Then, the locking bolt 432 is passed through the locking plate 431, the web of the first steel beam 2 and another set of locking plates 431 in sequence. Then, the locking nut is threaded onto the locking bolt 432. Then, the locking nut is rotated and pressed against the side wall of the locking plate 431. Then, the remaining sets of locking bolts 432 are also fixedly installed on the locking plate 431 and fixed by the threads of the multiple sets of locking nuts, so that the first steel beam 2 is fixedly installed on the first connecting beam 42.

[0044] Reference Figure 1 and Figure 2 The second connecting component 5 includes a beam-column connecting plate 51 and fixing bolts 52. The beam-column connecting plate 51 is welded and fixedly installed on the flange sidewall of the steel column 1. The beam-column connecting plate 51 is used to abut against the web sidewall of the second steel beam 3. The fixing bolts 52 pass through the beam-column connecting plate 51 and the web of the second steel beam 3 and are threadedly connected by fixing nuts. Multiple sets of fixing bolts 52 are arranged at intervals to fix the second steel beam 3 on the flange sidewall of the steel column 1. In this embodiment, the beam-column connecting plate 51 is pre-welded to the flange sidewall of the steel column 1. A set of beam-column connecting plates 51 is provided on both opposite ends of the steel column 1 to facilitate the fixed installation of a set of second steel beams 3 on both opposite sides of the steel column 1.

[0045] Reference Figure 1 and Figure 3 A support block 6 is fixedly installed on the flange sidewall of the steel column 1 to support and fix the bottom of the flange of the second steel beam 3. The support block 6 is pre-welded to the flange sidewall of the steel column 1. When the end face of the second steel beam 3 abuts against the flange sidewall of the steel column 1, the support block 6 supports and fixes the bottom of the flange sidewall of the second steel beam 3, thereby reducing the probability of the second steel beam 3 moving downward. At the same time, in order to improve the connection strength between the second steel beam 3 and the steel column 1, simple welding can be performed between the second steel beam 3 and the steel column 1.

[0046] Reference Figure 1 and Figure 3 During installation, the end face of the second steel beam 3 is pressed against the flange sidewall of the steel column 1. The bottom of the flange of the second steel beam 3 is supported by the support block 6. At the same time, the second steel beam 3 is moved horizontally so that the beam-column connecting plate 51 is pressed against the web sidewall of the second steel beam 3. Then, multiple sets of fixing bolts 52 are passed through the beam-column connecting plate 51 and the web of the second steel beam 3, and then fixed by threading with fixing nuts, thereby fixing the second steel beam 3 to the flange sidewall of the steel column 1.

[0047] Reference Figure 1 and Figure 3A support member 7 is provided on the flange sidewall of the steel column 1 for supporting and fixing the bottom of the second steel beam 3. The support member 7 includes a support stiffener 71 and a rib 72. One end of the support stiffener 71 is fixedly installed on the flange sidewall of the steel column 1, and the other end of the support stiffener 71 is fixed on the bottom of the second steel beam 3. The support stiffener 71 has a certain angle with the axis of the second steel beam 3 to provide diagonal support for the bottom of the second steel beam 3. The rib 72 is vertically fixedly installed on the end of the support stiffener 71 near the second steel beam 3, and the end of the rib 72 away from the support stiffener 71 is pressed against the bottom of the second steel beam 3. In order to improve the connection strength between the rib 72 and the second steel beam 3, the rib 72 is welded and fixed to the bottom of the second steel beam 3.

[0048] Reference Figure 1 and Figure 3 Since the supporting stiffener 71 is fixed to the bottom of the second steel beam 3, the force at the connection between the supporting stiffener 71 and the bottom of the second steel beam 3 is relatively large. In order to reduce the probability of deformation at the connection between the second steel beam 3 and the supporting stiffener 71 due to long-term stress, a reinforcing rib 8 is provided at the connection between the second steel beam 3 and the supporting stiffener 71. There are two sets of reinforcing ribs 8, which are located on opposite sides of the web of the second steel beam 3. The opposite ends of the reinforcing ribs 8 are pressed against the opposite end faces of the flanges of the second steel beam 3 to enhance the bending strength of the second steel beam 3 at this point. At the same time, a reinforcing rib 8 is also fixedly installed at the connection between the steel column 1 and the supporting stiffener 71.

[0049] The working principle of this application embodiment is as follows:

[0050] By pre-welding the interrib stiffening plate 41, the first connecting beam 42, and the beam-column connecting plate 51 onto the steel column 1, and then pressing the first steel beam 2 against the first connecting section, fixing two sets of locking plates 431 onto the first connecting beam 42, and then snapping the first steel beam 2 between the two sets of locking plates 431 and pressing it against the end face of the first connecting section, and finally locking the first steel beam 2 onto the first connecting section with locking bolts 432 and locking nuts, the first steel beam 2 is fixedly installed on the steel column 1. Then, the second steel beam 3 is pressed against the flange sidewall of the steel column 1, and the web of the second steel beam 3 is fixedly connected to the beam-column connecting plate 51 with fixing bolts 52, thereby locking the second steel beam 3 onto the steel column 1, improving the installation efficiency between the steel beam and the steel column 1, and enhancing the load-bearing capacity and seismic resistance of the connection node.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel beam and steel column connection structure, characterized in that: The system includes a steel column (1), which is an I-beam. A first steel beam (2) is provided on the web sidewall of the steel column (1) via a first connecting assembly (4), and a second steel beam (3) is provided on the flange end face of the steel column (1) via a second connecting assembly (5). Both the first steel beam (2) and the second steel beam (3) are I-beams. The first connecting assembly (4) includes: Interrib stiffening plate (41), the interrib stiffening plate (41) is vertically arranged on the web sidewall of the steel column (1); The first connecting beam (42) is set on the inter-rib stiffening plate (41) and welded to the side wall of the web of the steel column (1). The inter-rib stiffening plate (41) supports the bottom of the first connecting beam (42). The end face of the first steel beam (2) abuts against the end face of the first connecting section. Locking member (43) is provided on the first connecting beam (42) and locks and fixes the first steel beam (2).

2. The steel beam and steel column connection structure according to claim 1, characterized in that: The first connecting beam (42) is an I-beam of the same type as the first steel beam (2), and the locking member (43) includes: Locking plate (431), the locking plate (431) is provided on the side wall of the web of the first connecting beam (42), the locking plate (431) is provided in two sets and is located on opposite side walls of the web of the first connecting beam (42), the web of the first steel beam (2) abuts against the end face of the web of the first connecting section and is located between the two sets of locking plates (431); Locking bolts (432), multiple sets of the locking bolts (432) pass through the locking plate (431), the web of the first steel beam (2), another set of locking plates (431) in sequence and are locked by locking nuts.

3. The steel beam and steel column connection structure according to claim 1, characterized in that: The first connecting beam (42) has extension sections (421) on both sides of its flange. The extension sections (421) abut against the side wall of the opposite side of the flange of the steel column (1) and are welded together.

4. The steel beam and steel column connection structure according to claim 1, characterized in that: The second connection component (5) includes: Beam-column connecting plate (51), the beam-column connecting plate (51) is welded to the flange sidewall of the steel column (1), the second steel beam (3) abuts against the flange sidewall of the steel column (1) and the beam-column connecting plate (51) abuts against the web sidewall of the second steel beam (3); The fixing bolt (52) passes through the beam-column connecting plate (51) and the web of the second steel beam (3) and is threadedly locked by a fixing nut.

5. The steel beam and steel column connection structure according to claim 4, characterized in that: The steel column (1) is provided with a support member (7) for supporting and fixing the bottom of the second steel beam (3) on the flange side wall.

6. The steel beam and steel column connection structure according to claim 5, characterized in that: The support member (7) includes: A supporting stiffener (71) is provided, one end of which is located on the flange sidewall of the steel column (1), and the other end of which is located on the bottom of the second steel beam (3). The supporting stiffener (71) and the second steel beam (3) have a certain inclination angle in the axial direction. Rib plate (72) is vertically disposed on one end of the support stiffener plate (71) near the second steel beam (3), and the other end of the rib plate (72) away from the support stiffener plate (71) is abutted against the bottom of the second steel beam (3).

7. The steel beam and steel column connection structure according to claim 6, characterized in that: A reinforcing rib (8) is provided at the connection between the second steel beam (3) and the supporting stiffener plate (71). The two sets of reinforcing ribs (8) are respectively provided on the opposite side walls of the web of the second steel beam (3). The opposite end faces of the reinforcing ribs (8) are respectively abutted against the end faces of the opposite side of the flange of the second steel beam (3).

8. The steel beam and steel column connection structure according to claim 4, characterized in that: The steel column (1) is provided with a support block (6) for supporting and fixing the bottom of the flange of the second steel beam (3).

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