A connecting structure of a steel pipe column and a steel pipe beam

Abstract

The utility model is suitable for steel structure connecting joint technical field provides a kind of connecting structure of steel pipe column and steel pipe beam, including steel pipe column and steel pipe beam, each steel pipe column is provided with connecting pipe, the top of connecting pipe inner chamber is provided with a first support cover, the bottom of steel pipe beam inner chamber is provided with a second support cover, the inner wall top of first support cover outer end support steel pipe beam end, the inner wall bottom of second support cover outer end lap in connecting pipe's stepped portion.This connecting structure of steel pipe column and steel pipe beam, by steel pipe column inside pre-fixed connecting pipe, make the end of connecting pipe and steel pipe beam mutually clamping, simultaneously in connecting pipe and steel pipe beam respectively pre-fixed first fixed cover and second fixed cover, support and positioning during steel pipe beam installation process, make steel pipe beam not easy to deviate, then further connection fixed by welding, connection strength is better, connection is more stable, when bearing load, not one happens deformation or damage, higher reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel structure connection nodes, and particularly relates to a connection structure between a steel pipe column and a steel pipe beam. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. They are mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The components or parts are usually connected by welds, bolts or rivets. Because of their light weight and simple construction, they are widely used in large factories, stadiums, super high-rise buildings, bridges and other fields.

[0003] Currently, in the steel structures used in large factory buildings, the main structure generally includes steel pipe columns and steel pipe beams, as well as reinforcements and connectors. Both steel pipe columns and steel pipe beams are hollow structures. After connection, concrete is poured to fill the inner cavity to improve strength. Existing steel pipe beams are generally welded to one side wall of the steel pipe column or connected by multiple connectors and bolts. Both of these connection methods have the problem of low connection point strength, which can easily lead to unreliable connections between beams and columns, thus affecting the stability of the overall structure. When bearing loads, the joints are prone to deformation or damage. At the same time, during installation, hoisting equipment is needed to lift the steel beams and keep them suspended in the air for construction, which is not convenient for positioning. During construction, the steel beams are prone to swaying and displacement, which can easily affect welding and fastening. Utility Model Content

[0004] This utility model provides a connection structure for steel pipe columns and steel pipe beams, aiming to solve the problems of existing steel column and beam connections using welding or bolts, which have low connection point strength, are prone to deformation or damage at the joints when bearing loads, are difficult to position, and cause the steel beams to sway or shift during construction, which can affect welding and fastening.

[0005] This utility model is implemented as follows: a connection structure between a steel pipe column and a steel pipe beam, including a hollow steel pipe column and a hollow steel pipe beam. Each steel pipe column has a connecting pipe with the same cross-sectional dimensions as the steel pipe beam arranged laterally at its upper part. The end of the connecting pipe extends to the outside of the steel pipe column and forms a stepped part at its outer end. The two ends of the steel pipe beam respectively form inverted stepped parts that are adapted to the stepped parts.

[0006] A first support sleeve is provided at the top of the inner cavity of the stepped section, and the end of the first support sleeve extends to the outside of the upper half of the stepped section. A second support sleeve is provided at the bottom of the inner cavity of the inverted stepped section, and the end of the second support sleeve extends to the outside of the lower half of the inverted stepped section.

[0007] When the steel pipe beam is placed in place, the second support sleeve overlaps the bottom of the inner wall of the stepped section, and the top of the inner walls at both ends of the steel pipe beam overlaps the top of the first support sleeve. The first support sleeve and the steel pipe beam, and the second support sleeve and the connecting pipe are locked together by fasteners and then welded.

[0008] Preferably, the cross-section of the first support sleeve is n-shaped and the cross-section of the second support sleeve is U-shaped.

[0009] Preferably, when the steel pipe beam is placed in place, a gap is formed between the end faces of the first support sleeve and the second support sleeve.

[0010] Preferably, a first connecting hole is provided at the top of the outer end of the first support sleeve, and first mounting holes corresponding to the first connecting hole are provided at the top of both ends of the steel pipe beam.

[0011] Preferably, a second connecting hole is provided at the bottom of the outer end of the second support sleeve, and a second mounting hole corresponding to the second connecting hole is provided at the bottom of the outer end of the connecting tube.

[0012] Preferably, the connecting pipe has a grouting hole.

[0013] Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The connection structure between a steel pipe column and a steel pipe beam of this utility model, by pre-fixing a connecting pipe inside the steel pipe column, and setting matching stepped and inverted stepped portions at the ends of the connecting pipe and the steel pipe beam respectively, allows the ends of the two to engage with each other. At the same time, a first fixing sleeve and a second fixing sleeve are pre-fixed in the stepped and inverted stepped portions respectively, providing support and positioning during the installation of the steel pipe beam, so that the end of the steel pipe beam is precisely engaged with the end of the connecting pipe, making the steel pipe beam less prone to displacement and facilitating subsequent welding operations. Then, the connection and fixation are further achieved through welding. The steel pipe beam and the connecting pipe are tightly connected and fixed by both bolts and other fasteners and welding. On the one hand, this provides better support for the steel pipe beam, and on the other hand, the connection strength is better, the connection is more stable, and it is less likely to deform or break under load, resulting in higher reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the connecting pipe in this utility model;

[0018] Figure 4 This is a schematic diagram of the steel pipe beam in this utility model;

[0019] Figure 5This is a schematic diagram of the connecting pipe in another embodiment of the present invention;

[0020] Figure 6 This is an exploded view of the connecting pipe structure in another embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram of the connecting pipe in another embodiment of the present invention.

[0022] In the figure: 1-steel pipe column, 2-connecting pipe, 21-first support sleeve, 22-first connecting hole, 23-grouting hole, 24-second mounting hole, 25-fitting groove, 3-steel pipe beam, 31-first mounting hole, 32-second support sleeve, 33-second connecting hole, 4-inverted connecting pipe, 41-inverted fitting groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] First Embodiment

[0025] Please see Figure 1-4 This utility model provides a technical solution: a connection structure between a steel pipe column and a steel pipe beam, including a hollow steel pipe column 1 and a hollow steel pipe beam 3. Each steel pipe column 1 has a connecting pipe 2 with the same cross-sectional dimensions as the steel pipe beam 3 arranged laterally on its upper part. The end of the connecting pipe 2 extends to the outside of the steel pipe column 1 and forms a stepped portion at its outer end. The two ends of the steel pipe beam 3 respectively form inverted stepped portions that are adapted to the stepped portions.

[0026] A through hole with a cross-sectional size matching that of the connecting pipe 2 is opened laterally on the steel pipe column 1. The main body of the connecting pipe 2 is located in the through hole, with one end flush with the inner side of the steel pipe column 1 and fixed by welding. Alternatively, the through hole passes through the opposite two side walls of the steel pipe column 1, with one end of the connecting pipe 2 located in the through hole flush with the outer surface of the steel pipe column 1 and fixed by welding, and the other end protruding. The junction of its side wall and the side wall of the steel pipe column 1 is fixed by welding, so that the connecting pipe 2 and the steel pipe column 1 are fully connected, and the force on the connecting pipe 2 is applied to the entire steel pipe column 1, rather than to a certain side wall.

[0027] Please refer to Figure 3 and 4 The stepped section is the upper half of the end structure that is short and the lower half that is long. The inverted stepped section is the upper half that is long and the lower half that is short. At the same time, since the cross section of the steel pipe beam 3 is the same as the cross section of the connecting pipe 2, the inverted stepped section can be exactly overlapped on the stepped section.

[0028] A first support sleeve 21 is provided at the top of the inner cavity of the stepped section, and the end of the first support sleeve 21 extends to the outside of the upper half of the stepped section. A second support sleeve 32 is provided at the bottom of the inner cavity of the inverted stepped section, and the end of the second support sleeve 32 extends to the outside of the lower half of the inverted stepped section.

[0029] The first support sleeve 21 has an n-shaped cross-section, and the second support sleeve 32 has a U-shaped cross-section. The cross-sections of the first support sleeve 21 and the second support sleeve 32 can both be rectangular, that is, they are square tubes, with the top flush with the top of the inner wall of the connecting pipe 2 and the steel pipe beam 3, and the bottom flush with the bottom of the inner wall of the connecting pipe 2 and the steel pipe beam 3.

[0030] The first support sleeve 21 is pre-fixed in the stepped portion of the connecting pipe 2 by welding, and the second support sleeve 32 is pre-fixed in the inverted stepped portion of the steel pipe beam 3 by welding.

[0031] Since the two connecting pipes 2 need to support the steel pipe beam 3 from both ends after the steel structure is installed, the ends of the connecting pipes 2 can only be stepped sections with a shorter upper section and a longer lower section, and cannot be inverted stepped sections, in order to support and position the steel pipe beam 3.

[0032] When the steel pipe beam 3 is placed in place, a gap is formed between the end faces of the first support sleeve 21 and the second support sleeve 32 to prevent the ends of the first support sleeve 21 and the second support sleeve 32 from intersecting in the vertical direction and causing mutual interference when the steel pipe beam 3 is lifted and placed downwards, thus preventing the steel pipe beam 3 from being lowered.

[0033] When the steel pipe beam 3 is placed in place, the second support sleeve 32 overlaps the bottom of the inner wall of the stepped section, and the top of the inner walls at both ends of the steel pipe beam 3 overlaps the top of the first support sleeve 21. The first support sleeve 21 and the steel pipe beam, and the second support sleeve 32 and the connecting pipe 2 are locked together by fasteners and then welded.

[0034] When the steel pipe beam 3 is placed, it is lifted by hoisting equipment to above the connecting pipe 2, and then slowly lowered until the stepped part and the inverted stepped part interlock. At this time, the first support sleeve 21 supports the top of the inner wall of the steel pipe beam 3, and the inner wall surface of the lower half of the stepped part of the connecting pipe 2 supports the second support sleeve 32 inside the steel pipe beam 3. Then, bolts and other fasteners are used to lock them to prevent loosening. At this time, the stable support and positioning of the steel pipe beam 3 have been achieved. The steel pipe beam 3 and the connecting pipe 2 form a complete crossbeam. The steel pipe beam 3 can no longer shift, and it is not necessary to use hoisting equipment to keep it suspended. Then, the connection between the two is reinforced by welding.

[0035] By pre-fixing the connecting pipe 2 inside the steel pipe column 1, and setting matching stepped and inverted stepped sections at the ends of the connecting pipe 2 and the steel pipe beam 3 respectively, the ends of the two are interlocked. The overall length of the steel pipe beam 3 is slightly less than the distance between the two steel pipe columns 1, making it easier to place downwards after hoisting. At the same time, the first fixing sleeve 21 and the second fixing sleeve 32 are pre-fixed in the stepped and inverted stepped sections respectively, providing support and positioning during the installation of the steel pipe beam 3, so that the end of the steel pipe beam 3 is precisely interlocked with the end of the connecting pipe 2, making the steel pipe beam 3 less prone to displacement and facilitating subsequent welding operations. Then, the connection and fixation are further achieved through welding. The steel pipe beam 3 and the connecting pipe 2 are tightly connected and fixed by both bolts and other fasteners and welding. On the one hand, this provides better support for the steel pipe beam 3, and on the other hand, the connection strength is better, the connection is more stable, and the reliability is higher.

[0036] The top of the outer end of the first support sleeve 21 is provided with a first connecting hole 22, and the top of both ends of the steel pipe beam 3 are provided with first mounting holes 31 corresponding to the first connecting hole 22. The bottom of the outer end of the second support sleeve 32 is provided with a second connecting hole 33, and the bottom of the outer end of the connecting pipe 2 is provided with a second mounting hole 24 corresponding to the second connecting hole 33.

[0037] After the steel pipe beam 3 is placed in place, the first connecting hole 22 is aligned with the first mounting hole 31, the second connecting hole 33 is aligned with the second mounting hole 24, and bolts are used to tighten them before welding is performed.

[0038] Nuts can be pre-welded to the inner walls of the first support sleeve 21 and the second support sleeve 32 at positions corresponding to the first connecting hole 22 and the second connecting hole 33. When tightening the bolts after the steel pipe beam 3 is in place, the bolts can be tightened directly from the outside to the inside without having to consider how to put the nuts in.

[0039] Furthermore, a grouting hole 23 is provided on the connecting pipe 2. Since grouting is required inside the steel pipe after the steel structure is installed, a grouting hole 23 is provided on the connecting pipe 2 to prevent the grout from blocking the flow of mortar, so that the mortar can flow and fill the inside of the steel pipe.

[0040] In this embodiment, the connecting pipe 2 is provided with two grouting holes 23. One is located inside the steel pipe column 1, penetrating both the upper and lower surfaces of the connecting pipe 2, and is used to fill the lower part of the steel pipe column 1 with mortar. The other grouting hole 23 is located on the part of the connecting pipe 2 outside the steel pipe column 1, penetrating only the upper wall of the connecting pipe 2 to the inner cavity of the connecting pipe 2, and is used to grout into the connected connecting pipe 2 and the steel pipe beam 3.

[0041] In this embodiment, only one connecting pipe 2 is installed on the steel pipe beam 1. The connecting pipe 2 has a stepped part at one end and the other end can be sealed. This embodiment is applicable to the case where only one steel pipe beam 3 is installed on a steel pipe column 1.

[0042] Second Embodiment

[0043] Please refer to Figure 5 Unlike the first embodiment, in this embodiment, both ends of the connecting pipe 2 are provided with stepped portions, and the through holes on the steel pipe column 1 penetrate the opposite side walls. Both ends of the connecting pipe 2 extend to the outside of the steel pipe 1 (not shown in the figure), so that one connecting pipe 2 can be connected to two symmetrical steel pipe beams 3. In this case, there should be at least three grouting holes 23 on the connecting pipe 3.

[0044] This embodiment applies to the case where two steel pipe beams 3 are installed on a steel pipe column 1, and the two steel pipe beams 3 are symmetrically located on both sides.

[0045] Third Embodiment

[0046] Please refer to Figure 6 and 7 Unlike the first embodiment, this embodiment also includes an inverted connecting pipe 4. Both ends of the inverted connecting pipe 4 are also provided with stepped portions. The inverted connecting pipe 4 has the same size as the connecting pipe 2. The top of the middle section of the connecting pipe 2 is provided with a downward-facing fitting groove 25, which penetrates the top and side wall, so that only the bottom part of the middle section of the connecting pipe 2 is retained. Correspondingly, the bottom of the middle section of the inverted connecting pipe 4 is provided with an upward-facing inverted fitting groove 41, so that only the top part of the middle section of the inverted connecting pipe 4 is retained. At the same time, the widths of the fitting groove 25 and the inverted fitting groove 41 are adapted to the width of the connecting pipe 2, so that the connecting pipe 2 and the inverted connecting pipe 4 can be spliced ​​into a cross-shaped connector, forming stepped portions at the four ends. This can be applied to the connection of the central column and the steel pipe beam, that is, the case where four steel pipe beams 3 are connected to one steel pipe column 1.

[0047] In this embodiment, there should be two through holes on the steel pipe column 1, for the two ends of the connecting pipe 2 and the inverted connecting pipe 4 to extend out respectively. During installation, the connecting pipe 2 is first installed in place, and then the bottom of the inverted connecting pipe 4 is pushed inward along the bottom of the inner wall of the fitting groove 25 (in this process, the overall height of the two is slightly greater than the height of the connecting pipe 4 itself, so there are two layers of bottom height, so the height of the through hole through which the inverted connecting pipe 4 passes should be slightly higher than the height of the inverted connecting pipe 4), until the inverted fitting groove 41 and the fitting groove 25 are positioned opposite each other and the two are engaged. At this time, the solid part of the bottom of the fitting groove 25 just blocks the bottom opening of the inverted fitting groove 41, and the top of the inverted fitting groove 41 blocks the top opening of the fitting groove 25, forming a cross-shaped structure with the top and bottom flush with each other. Then, the joint of the two is welded and fixed and welded to the steel pipe column 1 to complete the installation.

[0048] In addition, in the connection of corner columns (that is, two steel pipe beams 3 arranged in an "L" shape are connected to one steel pipe beam 1) and side columns (that is, three steel pipe beams arranged in a "丄" shape are connected to one steel pipe beam 1) with the steel pipe beams 3, on the basis of the present embodiment, the connecting pipe 2 or the inverted connecting pipe 4 can be shortened, so that only one end of one of them has a stepped portion, so that the entire connecting member forms a structure with three ends for connecting with three steel pipe beams 3.

[0049] The above description is only the preferred embodiments of the present utility model, and is not used to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A connecting structure of a steel pipe column and a steel pipe beam, comprising a hollow steel pipe column (1) and a hollow steel pipe beam (3), characterized in that: Each of the steel pipe columns (1) has a connecting pipe (2) with the same cross-sectional dimensions as the steel pipe beam (3) arranged laterally on its upper part. The end of the connecting pipe (2) extends to the outside of the steel pipe column (1) and forms a stepped part at the outer end. The two ends of the steel pipe beam (3) respectively form inverted stepped parts that are adapted to the stepped parts. A first support sleeve (21) is provided at the top of the inner cavity of the stepped section, and a second support sleeve (32) is provided at the bottom of the inner cavity of the stepped section. When the steel pipe beam (3) is placed in place, the outer end of the first support sleeve (21) is used to support the top of the inner wall of the end of the steel pipe beam (3), and the outer end of the second support sleeve (32) overlaps the bottom of the inner wall of the stepped section of the connecting pipe (2). The first support sleeve (21) and the steel pipe beam and the second support sleeve (32) and the connecting pipe (2) are respectively locked by fasteners.

2. The connection structure of a steel pipe column and a steel pipe beam according to claim 1, characterized in that: The first support sleeve (21) has an n-shaped cross section, and the second support sleeve (32) has a U-shaped cross section.

3. The connection structure of a steel pipe column and a steel pipe beam according to claim 1, characterized in that: When the steel pipe beam (3) is placed in place, a gap is formed between the end faces of the first support sleeve (21) and the second support sleeve (32).

4. The connection structure of a steel pipe column and a steel pipe beam according to claim 1, characterized in that: The top of the outer end of the first support sleeve (21) is provided with a first connecting hole (22), and the top of both ends of the steel pipe beam (3) are provided with first mounting holes (31) corresponding to the first connecting hole (22).

5. The connection structure between a steel pipe column and a steel pipe beam as described in claim 1, characterized in that: The bottom of the outer end of the second support sleeve (32) is provided with a second connecting hole (33), and the bottom of the outer end of the connecting pipe (2) is provided with a second mounting hole (24) corresponding to the second connecting hole (33).

6. The connection structure of a steel pipe column and a steel pipe beam according to claim 1, characterized in that: The connecting pipe (2) is provided with a grouting hole (23).

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