Connection device between steel structure column and beam

Abstract

The present invention discloses a connection device between a steel structure column and a crossbeam, comprising: a column; a crossbeam, which is defined as an I-shaped structure by two cross plates and a web, the crossbeam being divided into a main section and an end section; a retaining frame, the outer end surface of which is used to butt against the wall surface of the column, an I-shaped groove is provided in the retaining frame, the I-shaped groove matches the I-shaped structure of the crossbeam, and the end section is penetrated by the I-shaped groove; both sides of the web of the end section are fixed with a plurality of elastic wing members which are arranged at intervals along the length direction of the crossbeam and protrude in the width direction; inclined guide walls are provided on the two groove walls in the middle part of the I-shaped groove, and the ends of the wing plates of the elastic wing members on both sides of the web are used to butt against the guide walls and are pressed by the guide walls to force the wing plates to deform elastically, thereby allowing the end section to elastically expand and contract relative to the retaining frame.

Description

Technical Field

[0001] The invention relates to a load-bearing component of a building, and in particular to a connecting device for a steel structure column and a crossbeam. Background Art

[0002] The steel structure of a typical steel structure building usually includes columns and beams. The beams are connected between two columns. In some steel structure bodies that require the top to bear a larger load, the beams are usually configured into an I-shaped structure. The I-shaped beams have greater bending and shear resistance in the vertical plane, thereby significantly improving the load-bearing capacity.

[0003] In some steel structures, the crossbeam is required to have a certain compliance (or yield capacity) in the transverse direction (length direction), which is conducive to compensating for installation errors when installing the steel structure, and avoiding the breakage of the connection parts at the relevant connection nodes by the crossbeam's compliance when the steel structure deforms (such as deformation caused by earthquakes). For this reason, a connection device is provided between the column and the crossbeam, which can make the crossbeam or the crossbeam and the column have a certain compliance.

[0004] The connection device in the prior art usually includes a circumferentially arranged columnar spring disposed between the column and the beam or between two sections of the beam. The columnar spring makes the beam compliant in the lateral direction by expansion and contraction, thereby compensating for installation errors and preventing the connection components (such as bolts) at the relevant connection points from breaking.

[0005] However, the connection device of the steel structure in the prior art has the following defects:

[0006] 1. The connection device makes the bending and shearing capacity of the beam in all directions worse. However, when the connection device is applied to a beam of an I-shaped structure that is required to bear a larger load, the connection device will significantly reduce the bending and shearing capacity of the beam in the vertical plane.

[0007] 2. The I-shaped crossbeam is a special-shaped structure, and the numerous circumferentially arranged columnar springs are difficult to be directly arranged at the end of the crossbeam, which leads to the need to reconfigure the adaption structure at the end of the crossbeam, for example, a disc-shaped component is configured at the end of the crossbeam to facilitate the circumferential arrangement of the columnar springs. Summary of the invention

[0008] In view of the above technical problems existing in the prior art, an embodiment of the present invention provides a connecting device between a steel structure column and a beam.

[0009] In order to solve the above technical problems, the technical solution adopted in the embodiments of the present invention is:

[0010] A connecting device for a steel structure column and a crossbeam, comprising:

[0011] A column having a flat wall surface;

[0012] A crossbeam, which is defined as an I-shaped structure by two cross plates arranged above and below and a web located between the two cross plates, and the crossbeam is divided into a main body section and end sections located on both sides of the main body section;

[0013] A retaining frame, which has an outer end face facing the column and an inner end face facing the cross beam, the outer end face of the retaining frame is used to butt against the wall face of the column, the retaining frame is provided with an I-shaped groove extending along the length direction of the cross beam and having two ends penetrating the outer end face and the inner end face, the I-shaped groove matches the I-shaped structure of the cross beam, and the end section is provided with the I-shaped groove;

[0014] An elastic damping assembly comprises a plurality of elastic wing members, wherein the plurality of elastic wing members are fixed on both sides of the web of the end section, the plurality of elastic wing members on each side of the web are arranged at intervals along the length direction of the cross beam and protrude in the width direction, and the elastic wing members have wing plates; inclined guide walls are provided on the two groove walls in the middle part of the I-shaped groove, and the two guide walls are symmetrically arranged about the web of the end section, and the ends of the wing plates of the elastic wing members on both sides of the web are used to abut against the guide walls and are pressed by the guide walls to force the wing plates to deform elastically, thereby allowing the end section to elastically expand and contract relative to the retaining frame.

[0015] Preferably, the elastic wing member further comprises a pasting plate, wherein an angle less than 90° is formed between the pasting plate and the wing plate, and the pasting plate and the wing plate are integrally bent; wherein:

[0016] The plate is detachably fixed to the web by being fastened by fasteners, or the plate is non-detachably fixed to the web by welding.

[0017] Preferably, the wing plates of all the elastic wing members on each side of the web are bent toward the outer end surface of the retaining frame.

[0018] Preferably, a column is arranged at the end of the wing plate, and the outer peripheral surface of the column abuts against the guide wall.

[0019] Preferably,

[0020] The plate is detachably fixed to the web by fastening with fasteners, the end section and the main section are an integral structure, and the end section is provided with the I-shaped groove from the outer end surface of the retaining frame.

[0021] or

[0022] The patch plate is non-detachably fixed to the web by welding, the end section and the main section are separate structures, the end section is penetrated by the I-shaped groove from the inner end surface of the retaining frame, and after the I-shaped groove is penetrated, the end section is fixedly connected to the main section.

[0023] Preferably, the top notch and the bottom notch of the I-shaped notch gradually increase from the outer end surface to the inner end surface of the retaining frame.

[0024] Preferably, a mounting plate is fixed on the web of the section where the end section extends out of the retaining frame, the mounting plate is opposite to the inner end surface of the retaining frame, a plurality of screws arranged in a rectangular shape are passed through the mounting plate, the mounting plate can move relative to the screws along with the end section, and the ends of the screws are screwed into the retaining frame; a columnar spring is sleeved between the nut of each screw and the mounting plate.

[0025] Preferably, if the end section and the main body section are separate structures, a connecting plate assembly is provided between the end section and the main body section;

[0026] The connecting plate assembly includes a transverse plate connecting plate and a web plate connecting plate; the transverse plate connecting plate is attached to the transverse plates of the main section and the end section and fixed by fasteners, and the web plate connecting plate is attached to the webs of the main section and the end section and fixed by fasteners.

[0027] Preferably, a rectangular docking plate is formed at the outer end of the retaining frame, an end surface of the rectangular docking plate forms an outer end surface of the retaining frame, and the rectangular docking plate is detachably fixed to the wall surface of the column by a fastener.

[0028] Preferably,

[0029] The retaining frame is an integrated structure, the retaining frame is formed by casting or forging, and the guide wall is formed by boring on a boring machine.

[0030] Compared with the prior art, the connection device of the steel structure column and the crossbeam disclosed in the present invention has the following beneficial effects:

[0031] 1. The connection device provided by the present invention not only allows the crossbeam to perform compliant micro-expansion and contraction, but also does not significantly reduce the bending and shearing resistance of the crossbeam.

[0032] 2. The elastic damping assembly composed of elastic wing members in the connection device provided by the present invention is adapted to the crossbeam of the I-shaped structure, thereby avoiding modification of the structure of the crossbeam.

[0033] This summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with letter suffixes or different letter suffixes may represent different instances of similar parts. The accompanying drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, are used to illustrate the embodiments of the invention. When appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts. Such embodiments are illustrative and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a connection device between a steel structure column and a crossbeam provided in an embodiment of the present invention (the end section and the main section of the crossbeam are an integrated structure).

[0036] Figure 2 A three-dimensional cross-sectional view of a connection device between a steel structure column and a crossbeam provided in an embodiment of the present invention (the end section and the main section of the crossbeam are an integral structure).

[0037] Figure 3 A top sectional view of a connecting device between a steel structure column and a cross beam provided in an embodiment of the present invention (the end section and the main section of the cross beam are an integral structure).

[0038] Figure 4 A schematic diagram of the three-dimensional structure of a connecting device between a steel structure column and a crossbeam provided in an embodiment of the present invention (the end section and the main section of the crossbeam are separate structures).

[0039] Figure 5 A top sectional view of a connecting device between a steel structure column and a cross beam provided in an embodiment of the present invention (the end section and the main section of the cross beam are separate structures).

[0040] Figure 6 It is a schematic diagram of the three-dimensional structure of the elastic wing component.

[0041] Reference numerals:

[0042] 10-crossbeam; 11-main section; 12-end section; 13-cross plate; 14-web; 20-upright column; 21-wall; 30-retaining frame; 31-I-shaped groove; 311-guide wall; 32-top notch; 33-bottom notch; 34-boss; 35-rectangular docking plate; 40-elastic wing member; 41-wing plate; 42-column; 43-attachment plate; 51-mounting plate; 52-screw; 53-column spring; 61-cross plate connecting plate; 62-web connecting plate. DETAILED DESCRIPTION

[0043] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and well-known components are omitted.

[0045] like Figures 1 to 6 As shown, an embodiment of the present invention discloses a connection device between a steel structure column 20 and a crossbeam 10, the device comprising: a column 20, a crossbeam 10, a retaining frame 30 and an elastic damping assembly.

[0046] The crossbeam 10 is a typical I-beam, that is, the cross section of the crossbeam 10 is an I-shaped structure. The crossbeam 10 has upper and lower cross plates 13 and a web 14 located between the two cross plates 13. In the present invention, there is no need to structurally reconfigure the crossbeam 10, and the crossbeam 10 in the prior art can be selected as the crossbeam 10 of the present invention.

[0047] According to the section definition, the cross beam 10 can be divided into a main section 11 and end sections 12 located on both sides of the main section 11, and the end sections 12 are closer to the column 20. The main section 11 and the end section 12 have the same structure and cross-sectional dimensions, that is, the cross-sections are both I-shaped structures.

[0048] The holding frame 30 and the cross beam 10 have the same extension direction, and the length of the holding frame 30 is slightly smaller than the length of the end section 12. The holding frame 30 has an inner end face and an outer end face in the length direction. During the installation of the cross beam 10 and the column 20, the inner end face of the holding frame 30 faces the cross beam 10, and the outer end face of the holding frame 30 faces the column 20. A rectangular docking plate 35 is processed at the outer end of the holding frame 30, and the end face of the rectangular docking plate 35 forms the outer end face of the holding frame 30. The frame has four wall surfaces 21 for connecting the cross beam 10 in four directions. The wall surfaces 21 are provided with vertically extending positioning grooves. The rectangular docking plate 35 is docked with the bottom of the positioning groove and is fixed to the column 20 by bolts, so that the holding frame 30 is fixed to the column 20.

[0049] like Figure 2 and Figure 3 As shown, the holding frame 30 has an I-shaped groove 31 extending in the length direction and having two ends penetrating to the inner end face and the outer end face respectively. The I-shaped groove 31 has a middle groove corresponding to the web 14 of the cross beam 10 and a top notch 32 and a bottom notch 33 corresponding to the two cross plates 13 of the cross beam 10, so that the cross-sectional structure of the end section 12 matches the I-shaped groove 31, and when installed, the end section 12 passes through the I-shaped groove 31. In some preferred embodiments, the top notch 32 and the bottom notch 33 of the I-shaped groove 31 gradually increase from the outer end face to the inner end face of the holding frame 30, so that the inner ends of the top notch 32 and the bottom notch 33 are slightly larger than the outer ends, and the inner ends of the top notch 32 and the bottom notch 33 are slightly larger than the size of the cross plate 13 of the end section 12, so that the cross beam 10 is allowed to be slightly bent relative to the holding frame 30 to compensate for the assembly error between the cross beam 10 and the column 20.

[0050] Two inclined guide walls 311 are symmetrically arranged on the two groove walls of the middle groove of the I-shaped groove 31. The two guide walls 311 pass through the outer end surface of the retaining frame 30, and the distance defined by the outer ends of the two guide walls 311 is greater than the distance defined by the inner ends of the guide walls 311, so that from the outer end surface to the inner end surface, the distance between the guide wall 311 and the web 14 of the end section 12 gradually decreases.

[0051] like Figure 5 Combined with Figure 2 and Figure 3As shown, the elastic damping assembly includes a plurality of elastic wing members 40, each of which includes a wing plate 41 and a plate 43 that is less than 90° with the wing plate 41, and the wing plate 41 and the plate 43 are integrally bent. A plurality of elastic wing members 40 are fixed to both sides of the web 14 of the end section 12 corresponding to the guide wall 311, and the plurality of elastic wing members 40 are arranged at intervals along the length direction, so that the plates 43 of the elastic wing members 40 are fixed to the web 14, so that the wing plates 41 of the elastic wing members 40 extend in the width direction, so that the ends of the wing plates 41 abut against the guide wall 311, and the wing plates 41 are bent toward the outer end of the retaining frame 30. Preferably, the retaining frame 30 is integrally formed by casting and forging, that is, the retaining frame 30 is an integral structure, and the guide wall 311 can be formed by boring by a boring machine. Preferably, a column 42 is processed at the end of the wing plate 41 so that the outer circumference of the column 42 abuts against the guide wall 311, thereby reducing the friction between the wing plate 41 and the guide wall 311. Preferably, from the outer end surface to the inner end surface of the retaining frame 30, the extension amount of the end of the wing plate 41 of the elastic wing member 40 in the width direction gradually decreases to match the inclination angle of the guide wall 311, so that the ends of the wing plates 41 of all the elastic wing members 40 are in contact with the guide wall 311.

[0052] The working principle of the above-mentioned device is introduced below.

[0053] The device is assembled with the column 20 and the beam 10 as follows Figure 3 and Figure 4 The state shown in the figure realizes the connection between the crossbeam 10 and the column 20.

[0054] During or after assembly, if the beam 10 is subjected to a force or impact along the length direction (e.g., when subjected to a pulling force), the force is transmitted to each elastic wing member 40 on the web 14 of the end section 12, so that the elastic wing member 40 is compressed by the guide wall 311 and deformed, and slides along the guide wall 311, thereby allowing the end drive to move relative to the retaining frame 30, and the movement is an elastic movement that can be reset, that is, the retaining frame 30 allows the beam 10 to elastically expand and contract slightly in the length direction, so that the beam 10 has resettable compliance in the transverse direction (i.e., in the length direction).

[0055] Since the end section 12 passes through the I-shaped groove 31 of the retaining frame 30 that matches the cross beam 10, the bending and shearing capabilities of the cross beam 10 in the section retaining the frame 30 are similar to those in other sections.

[0056] In addition, a plurality of elastic wing members 40 for providing resettable elastic expansion and contraction are installed on the web 14 and are located in the space between the two cross plates 13. Therefore, the plurality of elastic wing members 40 are more compatible with the I-shaped structure of the beam 10, and there is no need to configure an additional structure for the beam 10 to achieve elastic expansion and contraction.

[0057] The present invention provides two methods for fixing the elastic wing member 40 to the web 14 of the crossbeam 10 .

[0058] The first fixing method.

[0059] The elastic wing member 40 is detachably fixed to the web 14 of the end section 12 by the fixing plate 43 of the elastic wing member 40 in a bolt-fastened manner.

[0060] This fixing method has the following advantages:

[0061] like Figure 1 and Figure 3 As shown, the end section 12 and the main section 11 are an integral structure, that is, the beam 10 does not need to be divided into the end section 12 and the main section 11, thereby eliminating the docking procedure and docking components between the end section 12 and the main section 11, and will not destroy the overall rigidity of the beam 10.

[0062] The assembly procedure corresponding to this fixing method is: first, by moving the retaining frame 30, the end of the beam 10 (i.e., the end section 12) passes through the I-shaped groove 31 of the retaining frame 30 from the inner end of the retaining frame 30, and the end section 12 extends from the outer end of the retaining frame 30, and then, the elastic wing member 40 is fixed to the web 14 of the end section 12 in sequence by bolts, and then, by moving the retaining frame 30 in the reverse direction, the end section 12 is finally retracted into the retaining frame 30 so that the elastic wing member 40 cooperates with the guide wall 311 inside the retaining frame 30, and finally, the outer end of the retaining frame 30 is fixed to the column 20.

[0063] The second fixing method.

[0064] like Figure 4 and Figure 5 As shown, the plate 43 of the elastic wing member 40 is fixed to the web 14 of the end section 12 by welding, so that the elastic wing member 40 and the web 14 are non-detachably fixed.

[0065] This fixing method requires that the end section 12 and the main section 11 of the cross beam 10 are configured as two separate components, otherwise, the end section 12 and the elastic wing member 40 cannot enter the retaining frame 30 .

[0066] The assembly procedure corresponding to the fixing method is: first, the end section 12 is passed through the retaining frame 30 from the outer end of the retaining frame 30 and the inner end of the end section 12 is extended out of the retaining frame 30, so that the elastic wing member 40 enters between the two guide walls 311 without interference and cooperates with the guide wall 311, then, the inner end of the end section 12 is docked with the end of the main section 11, and finally, the outer end of the retaining frame 30 is fixed to the column 20. The end section 12 is docked with the main section 11 by the following components and methods: docking is performed by using a connecting plate assembly including a transverse plate connecting plate 61 and a web connecting plate 62. More specifically, the transverse plate connecting plate 61 is attached to the transverse plates 13 of the main section 11 and the end section 12 and fixed by fasteners, and the web connecting plate 62 is attached to the web 14 of the main section 11 and the end section 12 and fixed by fasteners.

[0067] In some preferred embodiments of the present invention, a resetting auxiliary structure is further arranged between the retaining frame 30 and the end section 12, and the resetting auxiliary structure is specifically as follows: a mounting plate 51 is fixed on the web 14 of the section where the end section 12 extends out of the retaining frame 30, and the mounting plate 51 is opposite to the inner end surface of the retaining frame 30. A plurality of screws 52 arranged in a rectangular shape are passed through the mounting plate 51. The mounting plate 51 can move relative to the screw 52 along with the end section 12, and the end of the screw 52 is screwed into the boss 34 on the inner end surface of the retaining frame 30; a columnar spring 53 is sleeved between the nut of each screw 52 and the mounting plate 51.

[0068] The function of the reset auxiliary structure is: when the wing plate 41 of the elastic wing member 40 is used to reset the crossbeam 10 and then extend it to reset, if the friction between the end of the wing plate 41 and the guide wall 311 is too large and the wing plate 41 is difficult to reset, then the columnar spring 53 of the reset auxiliary structure applies an elastic force to the crossbeam 10 in the direction of the column 20 to overcome the friction and reset the wing plate 41. Therefore, the reset auxiliary structure enables the crossbeam 10 to always be reset.

[0069] In addition, although exemplary embodiments have been described in the present invention, the scope includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., various embodiments intersecting schemes), adaptations or changes. The elements in the claims will be interpreted broadly based on the language adopted in the claims, and are not limited to the examples described in this specification or during the execution of this application, and the examples will be interpreted as non-exclusive. Therefore, this specification and examples are intended to be considered as examples only, and the true scope and spirit are indicated by the following claims and the full scope of their equivalents.

[0070] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more schemes thereof) may be used in combination with each other. For example, a person of ordinary skill in the art may use other embodiments when reading the above description. In addition, in the above-mentioned specific embodiments, various features may be grouped together to simplify the present invention. This should not be interpreted as an intention that a disclosed feature that is not required to be protected is necessary for any claim. On the contrary, the subject matter of the present invention may be less than all the features of a particular disclosed embodiment. Thus, the following claims are incorporated herein as examples or embodiments in the specific embodiments, wherein each claim is independently a separate embodiment, and it is considered that these embodiments can be combined with each other in various combinations or arrangements. The scope of the present invention should be determined with reference to the appended claims and the full scope of equivalent forms granted by these claims.

[0071] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A connection device between a steel structure column and a beam, characterized in that: include: A column having a flat wall surface; A crossbeam, which is defined as an I-shaped structure by two cross plates arranged above and below and a web located between the two cross plates, and the crossbeam is divided into a main body section and end sections located on both sides of the main body section; A retaining frame, which has an outer end face facing the column and an inner end face facing the cross beam, the outer end face of the retaining frame is used to butt against the wall face of the column, the retaining frame is provided with an I-shaped groove extending along the length direction of the cross beam and having two ends penetrating the outer end face and the inner end face, the I-shaped groove matches the I-shaped structure of the cross beam, and the end section is provided with the I-shaped groove; An elastic damping assembly comprises a plurality of elastic wing members, wherein the plurality of elastic wing members are fixed on both sides of the web of the end section, the plurality of elastic wing members on each side of the web are arranged at intervals along the length direction of the cross beam and protrude in the width direction, and the elastic wing members have wing plates; inclined guide walls are provided on the two groove walls in the middle part of the I-shaped groove, and the two guide walls are symmetrically arranged about the web of the end section, and the ends of the wing plates of the elastic wing members on both sides of the web are used to abut against the guide walls and are pressed by the guide walls to force the wing plates to deform elastically, thereby allowing the end section to elastically expand and contract relative to the retaining frame.

2. The connecting device of steel structure column and beam according to claim 1, characterized in that: The elastic wing member further comprises a pasting plate, wherein an angle less than 90° is formed between the pasting plate and the wing plate, and the pasting plate and the wing plate are integrally bent; wherein: The plate is detachably fixed to the web by being fastened by fasteners, or the plate is non-detachably fixed to the web by welding.

3. The connecting device of steel structure column and beam according to claim 2, characterized in that: The wing plates of all the elastic wing members on each side of the web are bent toward the outer end surface of the retaining frame.

4. The connecting device of steel structure columns and beams according to claim 2, characterized in that: A column is disposed at the end of the wing plate, and an outer peripheral surface of the column abuts against the guide wall.

5. The connecting device between a steel structure column and a crossbeam according to claim 2, characterized in that: The plate is detachably fixed to the web by fastening with fasteners, the end section and the main section are an integral structure, and the end section is provided with the I-shaped groove from the outer end surface of the retaining frame. or The patch plate is non-detachably fixed to the web by welding, the end section and the main section are separate structures, the end section is penetrated by the I-shaped groove from the inner end surface of the retaining frame, and after the I-shaped groove is penetrated, the end section is fixedly connected to the main section.

6. The connecting device of steel structure columns and beams according to claim 1, characterized in that: The top notch and the bottom notch of the I-shaped groove gradually increase from the outer end surface to the inner end surface of the retaining frame.

7. The connection device between a steel structure column and a crossbeam according to claim 1, characterized in that: A mounting plate is fixed on the web of the section where the end section extends out of the retaining frame. The mounting plate is opposite to the inner end surface of the retaining frame. A plurality of screws arranged in a rectangular shape are passed through the mounting plate. The mounting plate can move relative to the screws along with the end section. The ends of the screws are screwed into the retaining frame. A columnar spring is sleeved between the nut of each screw and the mounting plate.

8. The connecting device between a steel structure column and a crossbeam according to claim 5, characterized in that: If the end section and the main section are split structures, a connecting plate assembly is arranged between the end section and the main section; the connecting plate assembly includes a transverse plate connecting plate and a web plate connecting plate; the transverse plate connecting plate is attached to the transverse plates of the main section and the end section and fixed by fasteners, and the web plate connecting plate is attached to the webs of the main section and the end section and fixed by fasteners.

9. The connecting device between a steel structure column and a crossbeam according to claim 1, characterized in that: A rectangular butt joint plate is formed at the outer end of the retaining frame, the end surface of the rectangular butt joint plate forms the outer end surface of the retaining frame, and the rectangular butt joint plate is detachably fixed to the wall surface of the column by a fastener.

10. The connecting device of steel structure columns and beams according to claim 1, characterized in that: The retaining frame is an integrated structure, the retaining frame is formed by casting or forging, and the guide wall is formed by boring on a boring machine.

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