Rectangular steel tube column seat type node for fabricated steel frame

Abstract

The application relates to a rectangular steel pipe column base type node for a fabricated steel frame, and belongs to the technical field of fabricated steel structures, which comprises a column body, two cover plates symmetrically arranged at two ends of the column body, the cover plates being welded and fixed with the column body and used for realizing connection with steel pipe columns with end plates at two ends of the column body, two inner partition plates arranged at the inside of the column body and connected with the column body, and a connecting mechanism arranged at the outside of the column body and used for realizing connection with steel beams with end plates at the outside of the column body. The application replaces the traditional column penetration in the steel frame structure with column layering, realizes simultaneous connection of the steel pipe columns with end plates and the steel beams on the column body through the column layering, can realize quick assembly of the beam-column connection node, does not need long-time welding on site, greatly improves the installation efficiency of the fabricated steel frame structure, is convenient to use, high in assembly efficiency, strong in practicability and worth promoting.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembled steel structures, and in particular relates to a rectangular steel pipe column base node for an assembled steel frame. Background Art

[0002] Steel structures are load-bearing structures made of steel sections or steel plates connected by riveting, welding, and bolting. Therefore, the construction and calculation of node connections directly affect the quality and safety of steel structures, project progress, and overall cost. In existing prefabricated steel structure buildings, beams are generally directly welded or fixed to steel pipe columns by bolts. However, welding beams and columns requires on-site welding, which cannot be quickly assembled, greatly reducing installation efficiency and affecting the construction progress of the building. In addition, the connection method using bolts, whether single-sided bolts or through-bolts, lacks reliability. In addition, through-bolts are not suitable for large-sized steel pipe columns. In other words, the beam-column connection of existing prefabricated steel frames is costly and complex to operate, which is not conducive to large-scale use and seriously limits the promotion of prefabricated steel frame structures. Therefore, there is an urgent need for a rectangular steel pipe column base node for prefabricated steel frames. Summary of the Invention

[0003] In view of this, the present invention provides a rectangular steel tube column base node for an assembled steel frame to address the deficiencies in the prior art.

[0004] The technical solution of the present invention is: a rectangular steel pipe column base node for an assembled steel frame, comprising: a column body; two cover plates, symmetrically arranged at both ends of the column body, the cover plates are welded and fixed to the column body, and are used to connect with steel pipe columns with end plates at both ends of the column body; two inner partitions, spaced apart inside the column body, the inner partitions are connected to the column body; a connecting mechanism, arranged on the outside of the column body, and is used to connect with a steel beam with an end plate on the outside of the column body.

[0005] Preferably, the connecting mechanism includes a plurality of support plates evenly arranged on the bottom cover plate with the central axis of the column body as the center, the support plates are respectively connected to the column body and the cover plate at the bottom thereof, the interior of the column body is hollow and a plurality of first connecting holes are opened on its side, high-strength bolts pass through the first connecting holes and are connected to the steel beam with the end plate, the inner partition is welded and fixed to the inner wall of the column body, and the inner partition is respectively provided with a first mounting hole and is coaxial with the column body.

[0006] Preferably, the support plate is provided with a chamfered surface near the weld between the column body and its bottom cover plate, the support plate is welded and fixed to the column body at both end edges of the chamfered surface, and the bottom of the support plate is welded and fixed to the cover plate.

[0007] Preferably, the cover plate is respectively provided with a second mounting hole and is coaxial with the column body, and the cover plate is evenly provided with a plurality of second connecting holes on the outside of the second mounting hole, and high-strength bolts pass through the second connecting holes to cooperate with the steel pipe column with the end plate.

[0008] Preferably, the column body is a rectangular steel tube.

[0009] The invention provides a rectangular steel pipe column seat node for assembled steel frames, which replaces the traditional column through-hole in the steel frame structure with column layering through the column body, cover plate and connection mechanism. The column layering realizes that the steel pipe column with end plate and the steel beam are connected to the column body at the same time, which can realize the rapid assembly of the beam-column connection node and does not require long-term welding on site, thereby greatly improving the installation efficiency of the assembled steel frame structure, and realizing the standardized design of the beam-column node and the factory automated assembly line production, which greatly saves the cost of the assembled steel frame structure; the cover plate can be connected to the steel pipe columns with end plates of different cross-sectional areas, which can reduce the amount of steel used, increase the net usable area and improve the flexibility of use; the support plate arranged at the bottom of the column body can serve as a temporary support for the installation of the steel beam with end plate on site, and can also provide shear support for the steel beam with end plate, thereby further improving the safety of the steel frame; in addition, the support plate with beveled surface can The invention can avoid the influence of the weld between the column body and the cover plate on the installation of the steel beam with the end plate, and the planing treatment on the top ensures the uniformity of force transmission, further improving the convenience of installation; by opening a first connecting hole in the rectangular steel tube, high-strength bolts pass through from the inside to the outside to fix the steel beam with the end plate, which not only improves the safety of the fixation of the steel beam with the end plate, but also avoids the restriction of the column body by using through bolts, further improving the convenience of use of the column base node; the rigidity of the assembled steel frame node can be improved by arranging the inner partition inside the column body, further improving the safety of the node; the use of the seat type node of the present invention not only overcomes the problem of the complexity of the existing beam-column connection, but also can arrange the inner partition inside the node, improve the safety of the node structure, greatly speed up the construction efficiency of the assembled steel structure building, and is conducive to the promotion of the assembled steel frame structure; the column base node of the present invention is easy to use, has high on-site assembly and installation efficiency, is highly practical, and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a node stereogram of the present invention:

[0011] Figure 2 Schematic diagram of the internal structure of a node of the present invention;

[0012] Figure 3 A three-dimensional diagram of the column body of the present invention;

[0013] Figure 4 A three-dimensional diagram of the inner partition of the present invention;

[0014] Figure 5 A three-dimensional diagram of the cover plate of the present invention;

[0015] Figure 6 A three-dimensional diagram of a support plate according to the present invention;

[0016] Figure 7 This is a schematic diagram of node installation of the present invention. DETAILED DESCRIPTION

[0017] The present invention provides a rectangular steel pipe column base node for an assembled steel frame. Figures 1 to 7 The present invention is described with reference to a structural schematic diagram of FIG.

[0018] Example 1

[0019] like Figure 1 、 3 As shown in Figure 7, a rectangular steel pipe column base node for an assembled steel frame comprises: a column body 1; two cover plates 2, symmetrically arranged at both ends of the column body 1, the cover plates 2 being welded and fixed to the column body 1, and being used to connect with the steel pipe columns with end plates at both ends of the column body 1; two inner partition plates 3, spaced apart inside the column body 1, the inner partition plates 3 being connected to the column body 1, and the stiffness of the assembled steel frame node can be improved by the inner partition plates arranged inside the column body; a connecting mechanism, arranged on the outside of the column body 1, and being used to connect with the steel beam with end plates on the outside of the column body 1, and the steel frame structure is connected by the column body, the cover plates and the connecting mechanism. The traditional through-columns are replaced by column layering. Through the column layering, the steel pipe columns with end plates and the steel beams are connected to the column body at the same time, which can realize the rapid assembly of the beam-column connection nodes and does not require long-term welding on site, greatly improving the installation efficiency of the prefabricated steel frame structure, and realizing the standardized design of the beam-column nodes and factory automated assembly line production, which greatly saves the cost of the prefabricated steel frame structure; the cross-section of the steel pipe columns with end plates includes circular, rectangular, etc., and the cross-section of the steel beams with end plates includes H-shaped, etc. The end plates are set at the ends of the steel pipe columns or steel beams, and screw holes are also opened on the end plates.

[0020] Preferably, the column body 1 is a rectangular steel tube.

[0021] The method for processing a rectangular steel pipe column-type node of the present invention comprises the following steps:

[0022] S1. Clamp the rectangular steel tube on the cutting machine to obtain the column body 1. Clamp the steel plate on the shearing machine to obtain two cover plates 2 and two inner partition plates 3. Then, shape the cover plates 2 and inner partition plates 3 to a flatness of 0.02.

[0023] S2. Place the shaped inner partition 3 inside the column body 1 and weld it. Then, weld the two shaped cover plates 2 to the two ends of the column body 1. Measure the weld feet at the welds between the column body 1 and the cover plates 2. Clamp the steel plates on a milling machine and machine a chamfer C to form an inclined surface 31. The inclined surface 31 is larger than the weld foot size. Then, reshape the steel plates to a flatness of 0.02 to obtain four support plates 21.

[0024] S4. Weld four supporting plates 21 to the connection between the column body 1 and one end cover plate 2 to obtain a node body;

[0025] S5. Fix the vise on the work surface of a machining center or milling machine, flatten it, clamp the node body in the vise, fly one of the cover plates 2 and polish the outer contour, then sequentially machine the second mounting hole 41 and the second connecting hole 42 on the cover plate 2, then machine the first mounting holes 23 on the two inner partitions 3, turn around and clamp it, fly the other cover plate and polish the outer contour, and then machine the second mounting hole 41 and the second connecting hole 42 on the other cover plate 2;

[0026] S6. Clamp the cover plates 2 at both ends of the node body with a vise, flip the node body 90 degrees each time, and process the first connection holes 22 on the column body 1 one by one to obtain a rectangular steel pipe column base node;

[0027] S7. Inspect the completed rectangular steel tube column base node, and proceed to process the next rectangular steel tube column base node after passing the inspection.

[0028] Example 2

[0029] In order to further improve the connection safety of the steel frame, the support plate set at the bottom of the column can serve as a temporary support for the installation of steel beams with end plates on site, and can also provide shear support for the steel beams with end plates.

[0030] like Figure 4 、 6 As shown, preferably, the connecting mechanism includes a plurality of support plates 21 evenly arranged on the bottom cover plate 2 with the central axis of the column body 1 as the center, and the support plates 21 are respectively connected to the column body 1 and the cover plate 2 at the bottom thereof. The interior of the column body 1 is hollow and a plurality of first connection holes 22 are opened on its side. High-strength bolts pass through the first connection holes 22 and are connected to the steel beam with end plates. The inner partition 3 is welded and fixed to the inner wall of the column body 1. First mounting holes 23 are respectively opened on the inner partition 3 and are coaxial with the column body 1. By opening the first connection hole in the rectangular steel tube, high-strength bolts pass through from the inside to the outside to fix the steel beam with the end plate, which not only improves the safety of fixing the steel beam with the end plate, but also avoids the restriction of the column body by using through bolts.

[0031] Example 3

[0032] In order to further improve the convenience of steel frame installation, the support plate with a beveled surface can avoid the impact of the weld between the column body and the cover plate on the installation of the steel beam with the end plate. The planed treatment on the top ensures uniform force transmission.

[0033] Preferably, the support plate 21 is provided with a chamfered surface 31 near the weld between the column body 1 and its bottom cover plate 2. The support plate 21 is welded and fixed to the column body 1 at both end edges of the chamfered surface 31, and the bottom of the support plate 21 is welded and fixed to the cover plate 2. By welding the two side edges of the support plate to the column body and the bottom to the cover plate, it is possible to avoid the occurrence of welds on the top of the support plate, which affects the connection accuracy of the steel beam with the end plate and the column body.

[0034] Example 4

[0035] In order to further improve the convenience of assembly, a second mounting hole is opened on the cover plate, which makes it convenient to pass the high-strength bolts connecting the steel beam with the end plate from the inside to the outside, and the high-strength bolts pass through the second connecting hole from the inside to the outside to fix the steel pipe column with the end plate, which can improve the safety of fixing the steel beam with the end plate.

[0036] like Figure 2 、 5 As shown, preferably, the cover plate 2 is respectively provided with a second mounting hole 41 and is coaxial with the column body 1, and the cover plate 2 is evenly provided with a plurality of second connecting holes 42 on the outside of the second mounting hole 41, and high-strength bolts pass through the second connecting holes 42 and are connected to the steel pipe column with the end plate.

[0037] The present invention provides a rectangular steel pipe column base node for assembled steel frames, which replaces the traditional column through-holes in steel frame structures with column layering through column bodies, cover plates and connecting mechanisms. The column layering realizes that the steel pipe columns with end plates and the steel beams are connected to the column bodies at the same time, which can realize rapid assembly of the beam-column connection nodes and does not require long-term welding on site, thereby greatly improving the installation efficiency of the assembled steel frame structure, and realizing standardized design of beam-column nodes and factory automated assembly line production, which greatly saves the cost of the assembled steel frame structure; the cover plate can be used to connect with steel pipe columns with end plates of different cross-sectional areas, which can not only reduce the amount of steel used, but also increase the net usable area and improve the flexibility of use; the support plate arranged at the bottom of the column body can serve as a temporary support for the installation of steel beams with end plates on site, and can also provide shear support for the steel beams with end plates, thereby further improving the safety of the steel frame; in addition, the support plate with an oblique cut surface can avoid the column The weld between the body and the cover plate affects the installation of the steel beam with end plates, and the planing treatment on the top ensures the uniformity of force transmission, further improving the convenience of installation; by opening a first connecting hole in the rectangular steel tube, high-strength bolts pass through from the inside to the outside to fix the steel beam with end plates, which not only improves the safety of the fixation of the steel beam with end plates, but also avoids the restriction of the column body by using through bolts, further improving the convenience of use of the column base node; the rigidity of the prefabricated steel frame node can be improved by arranging the inner partition inside the column body, further improving the safety of the node; the use of the seat type node of the present invention not only overcomes the problem of complex connection between existing beams and columns, but also can arrange the inner partition inside the node, improve the safety of the node structure, greatly speed up the construction efficiency of prefabricated steel structure buildings, and is conducive to the promotion of prefabricated steel frame structures; the column base node of the present invention is easy to use, has high on-site assembly and installation efficiency, is highly practical, and is worthy of promotion.

[0038] The above disclosure is only a preferred specific embodiment of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A rectangular steel tube column-type node for an assembled steel frame, characterized in that: include: A column body (1); two cover plates (2) symmetrically arranged at both ends of the column body (1), the cover plates (2) being welded and fixed to the column body (1) and used for achieving connection with steel pipe columns with end plates at both ends of the column body (1); two inner partition plates (3) spaced apart and arranged inside the column body (1), the inner partition plates (3) being connected to the column body (1); a connecting mechanism arranged on the outside of the column body (1) and used for achieving connection with a steel beam with end plates on the outside of the column body (1); The connection mechanism comprises a plurality of support plates (21) uniformly arranged on the bottom cover plate (2) of the column body (1) with the central axis of the column body (1) as the center, the support plates (21) are respectively connected to the column body (1) and the cover plate (2) at the bottom thereof, the interior of the column body (1) is hollow and a plurality of first connection holes (22) are opened on its side, high-strength bolts pass through the first connection holes (22) and are connected to the steel beam with the end plate, the inner partition plate (3) is welded and fixed to the inner wall of the column body (1), and the inner partition plate (3) is respectively opened with a first mounting hole (23) and is coaxial with the column body (1); The support plate (21) is provided with a chamfered surface (31) near the weld between the column body (1) and the bottom cover plate (2). The support plate (21) is welded and fixed to the column body (1) at both end edges of the chamfered surface (31). The bottom of the support plate (21) is welded and fixed to the cover plate (2). The top of the support plate (21) is planed. The cover plate (2) is provided with a second mounting hole (41) and is coaxial with the column body (1). The cover plate (2) is evenly provided with a plurality of second connection holes (42) outside the second mounting hole (41). High-strength bolts pass through the second connection holes (42) and are connected to the steel pipe column with the end plate.

2. A rectangular steel tube column-type node for an assembled steel frame according to claim 1, characterized in that: The column body (1) is a rectangular steel tube.

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