Joint connection structure of cross-shaped flange-free steel frame column and steel beam

Abstract

The utility model relates to the field of anti-seismic steel structures, in particular to a node connecting structure of a cross-shaped flange-free steel frame column and a steel beam, which comprises the cross-shaped flange-free steel frame column, the steel beam, an upper partition plate and a lower partition plate, the cross-shaped flange-free steel frame column is arranged perpendicular to the ground, the steel beam is fixedly connected to the middle or the top of the cross-shaped flange-free steel frame column, and the upper partition plate and the lower partition plate are arranged on the cross-shaped flange-free steel frame column. The web is parallel to the first single plate, and the steel beam is welded to the first single plate and the upper partition plate through connecting plate bolts; the upper partition plate and the lower partition plate are fixed between the first single plate and the second single plate at intervals, the upper partition plate is parallel to and fixedly connected with the upper flange, and the lower partition plate is parallel to and fixedly connected with the lower flange. According to the node connecting structure of the cross-shaped flange-free steel frame column and the steel beam, the upper partition plate and the lower partition plate which correspond to the upper flange and the lower flange of the steel beam respectively are arranged to reinforce the node core domain connecting strength between the cross-shaped flange-free steel frame column and the steel beam, and therefore the stability and the safety of the node are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of anti-seismic steel structure, concretely is a cross type no flange steel frame column and steel beam's node connection structure. BACKGROUND

[0002] Steel frame structure system is widely used because of good steel performance, high assembly rate, fast construction speed and easy disassembly. Among them, the cross section form of steel frame column is mainly I-shaped, box-shaped and circular tube, and the cross section form of steel beam is mainly I-shaped. Under the premise of meeting safety and applicability, architects also have certain modeling requirements. In places with small load such as corridor, hall and walkway, cross type no flange steel frame column is adopted because of its novel modeling.

[0003] For the connection of cross type no flange steel frame column and steel beam, the strength and stability of the node core domain connection should be paid attention to when connecting the steel frame column with the steel beam, and the connection process and method should also be specially considered.

[0004] In the seismic design, the connection structure of beam and box type column or I-shaped cross section column is mainly used, and the connection of cross type no flange steel frame column and steel beam is rarely mentioned, even not mentioned. INVENTION CONTENTS

[0005] In view of the problems of the connection of cross type no flange steel frame column and steel beam in the prior art, the utility model provides a node connection structure of cross type no flange steel frame column and steel beam.

[0006] The utility model is realized through the following technical schemes:

[0007] A node connection structure of cross type no flange steel frame column and steel beam, including cross type no flange steel frame column, steel beam, upper baffle and lower baffle, the cross type no flange steel frame column is arranged perpendicularly to the ground, the steel beam is fixedly connected to the middle or top of the cross type no flange steel frame column, the cross type no flange steel frame column includes first single board and second single board that cross perpendicularly, the steel beam includes web, upper flange and lower flange, the upper flange and the lower flange are fixedly arranged on the both sides of the web in parallel and symmetrically, the web is parallel to the first single board, and the steel beam is bolted and welded to the first single board and the upper baffle through the connecting plate;The upper baffle and the lower baffle are fixedly arranged between the first single board and the second single board, the upper baffle is parallel to the upper flange and is fixedly connected, and the lower baffle is parallel to the lower flange and is fixedly connected.

[0008] Preferably, the thickness of the upper baffle is equal to the thickness of the upper flange and is not less than 16mm, and the thickness of the lower baffle is equal to the thickness of the lower flange and is not less than 16mm.

[0009] Preferably, the vertical distance between the upper baffle and the lower baffle is not less than 300mm.

[0010] The application discloses a node connecting structure of a cross-shaped steel frame column without flanges and a steel beam.

[0011] Preferably, the thickness of the wedge-shaped haunch plate is the same as the thickness of the corresponding flange.

[0012] The application discloses a node connecting structure of a cross-shaped steel frame column without flanges and a steel beam.

[0013] Preferably, the slope of the lower flange of the transition section of the second steel beam is not greater than 1:3.

[0014] Preferably, the thickness of the wedge-shaped haunch plate is the same as the thickness of the corresponding flange.

[0015] The application discloses a node connecting structure of a cross-shaped steel frame column without flanges and a steel beam.

[0016] Preferably, the upper flange root of the first steel beam, the upper flange root of the second steel beam, the lower flange root of the first steel beam and the lower flange root of the second steel beam are each provided with a wedge-shaped haunch plate, and the thickness of the wedge-shaped haunch plate is equal to the thickness of the corresponding flange.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a cross type no flange steel frame column and steel beam's node connection structure, through setting up with the upper flange of steel beam, lower flange respectively corresponding upper baffle and lower baffle to strengthen the connecting strength between cross type no flange steel frame column and steel beam, to this guarantee the strength and stability of the node core area, steel frame column upper baffle, lower baffle are connected with the upper flange of steel beam, lower flange, to this guarantee the stable internal force transmission path between steel beam and steel column.

[0019] Further, in the cantilever section connection of cross type no flange steel frame column and steel beam, through setting up wedge-shaped haunch plate to locally enhance the rigidity of the connecting place, and can avoid the damage caused by local stress concentration.

[0020] Further, in the connection of cross type no flange steel frame column and column two sides not equal height steel beam, the height difference is different, and the arrangement mode of inner baffle is also different, to this guarantee effective beam column connection structure. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is cross type no flange steel frame column and steel beam's connection schematic view in the utility model;

[0022] Figure 2 It is cross type no flange steel frame column and steel beam's overhead connection schematic view in the utility model;

[0023] Figure 3 It is cross type no flange steel frame column and steel beam cantilever section's connection schematic view in the utility model;

[0024] Figure 4 It is cross type no flange steel frame column and steel beam cantilever section's overhead connection schematic view in the utility model;

[0025] Figure 5 It is cross type no flange steel frame column and inclined steel beam's connection schematic view in the utility model;

[0026] Figure 6 It is cross type no flange steel frame column and inclined steel beam's overhead connection schematic view in the utility model;

[0027] Figure 7 It is cross type no flange steel frame column and inclined steel beam cantilever section's connection schematic view in the utility model;

[0028] Figure 8 It is the overhead connection schematic view of the cross type no flange steel frame column and the cantilever section of the inclined steel beam in the utility model;

[0029] Figure 9 It is the connection schematic view of the cross type no flange steel frame column and two sides not equal high steel beam (height difference < 150) in the utility model;

[0030] Figure 10 It is the overhead connection schematic view of the cross type no flange steel frame column and two sides not equal high steel beam (height difference < 150) in the utility model;

[0031] Figure 11 It is the connection schematic view of the cross type no flange steel frame column and two sides not equal high steel beam (height difference ≥ 150) in the utility model;

[0032] Figure 12 It is the overhead connection schematic view of the cross type no flange steel frame column and two sides not equal high steel beam (height difference ≥ 150) in the utility model.

[0033] In the drawing, 1, cross type no flange steel frame column;2, steel beam;3, upper partition;4, lower partition;5, upper flange;6, lower flange;7, connecting plate;8, bolt;9, wedge-shaped haunch plate;10, middle partition;11, first steel beam;12, second steel beam;13, first single plate;14, second single plate;15, web;16, second steel beam transition section. DETAILED DESCRIPTION

[0034] The utility model will be further explained in detail in combination with specific embodiment, and the explanation is not the limitation of the utility model.

[0035] The utility model discloses a kind of cross type no flange steel frame column and the node connection structure of steel beam, refer to Figure 1 、 2 , including cross type no flange steel frame column 1, steel beam 2, upper partition 3 and lower partition 4, cross type no flange steel frame column 1 is vertically set to ground, steel beam 2 is fixedly connected in the middle or top of cross type no flange steel frame column 1, cross type no flange steel frame column 1 includes first single plate 13 and second single plate 14 that cross vertically, steel beam 2 includes web 15, upper flange 5 and lower flange 6, upper flange 5 and lower flange 6 are fixedly connected to the two sides of web 15 in parallel symmetry, upper partition 3 and lower partition 4 are fixedly connected between first single plate 13 and second single plate 14, upper partition 3 is parallel with upper flange 5 and fixedly connected, lower partition 4 is parallel with lower flange 6 and fixedly connected. Wherein, the vertical distance between upper partition 3 and lower partition 4 is not less than 300mm, and the thickness of upper partition 3 is equal to the thickness of upper flange 5 and not less than 16mm;The thickness of lower partition 4 is equal to the thickness of lower flange 6 and not less than 16mm.

[0036] Embodiment 1

[0037] With reference to Figure 1 , 2 When the length axis of the cross-shaped steel frame column 1 is perpendicular to the length axis of the steel beam 2, and the cross-shaped steel frame column 1 and the steel beam 2 are fixedly connected through the connecting plate 7 by bolt welding, the upper diaphragm 3 is parallel to and welded with the upper flange 5, and the lower diaphragm 4 is parallel to and welded with the lower flange 6. A plurality of connecting holes are formed on the connecting plate 7, and the connecting holes correspond to the bolts 8 one by one. The side of the connecting plate 7 close to the single plate is welded with the single plate of the cross-shaped steel frame column 1, and is fixedly connected with the web 15 of the steel beam 2 through the cooperation of the bolt 8, the connecting hole and the nut. In the embodiment, the bolt 8 is an M20 bolt 8.

[0038] Embodiment 2

[0039] With reference to Figure 3 , 4 The utility model discloses also a kind of cross-shaped steel frame column and steel beam's node connection structure, including cross-shaped steel frame column 1, steel beam 2, upper diaphragm 3 and lower diaphragm 4, cross-shaped steel frame column 1 is vertically ground setting, steel beam 2 is fixedly connected in the middle part or top of cross-shaped steel frame column 1, cross-shaped steel frame column 1 includes first single plate 13 and second single plate 14 that cross vertically, steel beam 2 includes web 15, upper flange 5 and lower flange 6, upper flange 5 and lower flange 6 are fixed on the two sides of web 15 symmetrically, web 15 is parallel with first single plate 13, and web 15 is directly welded with first single plate 13 (i.e.

[0040] Embodiment 3

[0041] When steel beam 2 is inclined frame beam, upper diaphragm 3 is parallel with and connected with the upper flange 5 of steel beam 2, and lower diaphragm 4 is parallel with and connected with the lower flange 6 of steel beam 2. Whether it is that inclined frame beam and cross-shaped steel frame column 1 are directly rigidly connected (such as Figure 5 , 6 ), or that inclined frame beam and cross-shaped steel frame column 1 are connected through the cantilever section of inclined frame beam (such as Figure 7 , 8), the upper partition plate 3 is parallel to and connected with the upper flange 5 of the steel beam 2, the lower partition plate 4 is parallel to and connected with the lower flange 6 of the steel beam 2, that is, the upper partition plate 3 is inclined at the same angle as the upper flange 5 of the steel beam 2, and the lower partition plate 4 is inclined at the same angle as the lower flange 6 of the steel beam 2, so as to ensure that the force transmission path of the connecting joint is clear and the strength is stable. Similarly, the root of the upper flange 5 and the root of the lower flange 6 of the inclined frame beam cantilever section are fixedly provided with wedge-shaped haunch plates 9, and the thickness of the wedge-shaped haunch plates 9 is equal to the thickness of the corresponding flange.

[0042] Embodiment 4

[0043] The utility model discloses also a kind of node connection structure of cross type no-flange steel frame column and steel beam, refer to Figure 9 、 10 , including cross type no-flange steel frame column 1, first steel beam 11, second steel beam 12, second steel beam transition section 16, upper partition plate 3 and lower partition plate 4, cross type no-flange steel frame column 1 is vertically ground setting, steel beam is fixedly connected in the middle part or top of cross type no-flange steel frame column 1, cross type no-flange steel frame column 1 includes first single board 13 and second single board 14 that cross vertically, the height of first steel beam 11 is greater than the height of second steel beam 12, and the height difference of two is less than 150mm;Upper partition plate 3 and lower partition plate 4 are fixedly spaced between first single board 13 and second single board 14;The upper flange 5 of first steel beam 11, the upper flange 5 of second steel beam 12 and upper partition plate 3 are coplanar and fixedly connected;The lower flange 6 of second steel beam transition section 16 is connected with lower partition plate 4 by gentle slope transition, and the lower flange 6 of first steel beam 11 is coplanar and fixedly connected with lower partition plate 4. The slope of the lower flange 6 of second steel beam transition section 16 is not more than 1:3. The root of the upper flange 5 and the root of the lower flange 6 of second steel beam transition section 16 are provided with wedge-shaped haunch plates 9, and the thickness of the wedge-shaped haunch plates 9 is equal to the thickness of the corresponding flange.

[0044] Embodiment 5

[0045] The utility model discloses also a kind of node connection structure of cross type no-flange steel frame column and steel beam, refer to Figure 11 、 12, including a cross-shaped no-flange steel frame column 1, a first steel beam 11, a second steel beam 12, an upper partition plate 3, a middle partition plate 10 and a lower partition plate 4, the cross-shaped no-flange steel frame column 1 is arranged vertically to the ground, and the first steel beam 11 and the second steel beam 12 are fixedly connected to the two sides of the cross-shaped no-flange steel frame column 1 respectively; the cross-shaped no-flange steel frame column 1 comprises a first single plate 13 and a second single plate 14 which are crossed and vertical, the height of the first steel beam 11 is greater than the height of the second steel beam 12, and the height difference between the two is not less than 150mm, the upper partition plate 3, the middle partition plate 10 and the lower partition plate 4 are fixedly arranged between the first single plate 13 and the second single plate 14, the upper flange 5 of the first steel beam 11, the upper flange 5 of the second steel beam 12 and the upper partition plate 3 are coplanar and fixedly connected, the lower flange 6 of the second steel beam 12 is coplanar with the middle partition plate 10 and is fixedly connected, and the lower flange 6 of the first steel beam 11 is coplanar with the lower partition plate 4 and is fixedly connected. Similarly, the upper flange 5 root of the first steel beam 11, the upper flange 5 root of the second steel beam 12, the lower flange 6 root of the first steel beam 11 and the lower flange 6 root of the second steel beam 12 are all provided with wedge-shaped haunch plates 9, and the thickness of the wedge-shaped haunch plates 9 is equal to the thickness of the corresponding flange.

[0046] The utility model discloses a kind of node connection structures of cross-shaped no-flange steel frame column and steel beam, by setting up and steel beam 2 upper flange 5, lower flange 6 respectively corresponding upper partition plate 3 and lower partition plate 4, to strengthen the connecting strength between cross-shaped no-flange steel frame column 1 and steel beam 2, to ensure the stability and security of the node. At the same time, for different types of steel beam 2, the setting of its inner partition plate is limited respectively, so that the node is more in line with actual, with universal applicability.

[0047] The above-mentioned is only the preferred embodiment of the utility model, and does not use to carry out any limit to the technical scheme of the utility model, and those skilled in the art should understand that, under the premise of not departing from the spirit and principle of the utility model, the technical scheme can be modified and replaced by several simple, and these modifications and replacements also all belong to the protection scope covered in claim book.

Claims

1. A joint connection structure between a cross-shaped flangeless steel frame column and a steel beam, characterized in that, The cross-shaped steel frame column (1) is arranged vertically to the ground, the steel beam (2) is fixedly connected to the middle or top of the cross-shaped steel frame column (1), the cross-shaped steel frame column (1) comprises a first single plate (13) and a second single plate (14) which are crossed and vertical, the steel beam (2) comprises a web (15), an upper flange (5) and a lower flange (6), the upper flange (5) and the lower flange (6) are fixedly connected to the two sides of the web (15) in parallel and symmetrically, the web (15) is parallel to the first single plate (13), and the steel beam (2) is bolted and welded to the first single plate (13) and the upper diaphragm (3) through a connecting plate (7); the upper diaphragm (3) and the lower diaphragm (4) are fixedly arranged between the first single plate (13) and the second single plate (14) in a spaced manner, the upper diaphragm (3) is parallel to and fixedly connected to the upper flange (5), and the lower diaphragm (4) is parallel to and fixedly connected to the lower flange (6).

2. The joint connection structure of a cross-shaped steel column without flange and a steel beam according to claim 1, characterized in that, The thickness of the upper diaphragm (3) is equal to the thickness of the upper flange (5) and is not less than 16 mm, and the thickness of the lower diaphragm (4) is equal to the thickness of the lower flange (6) and is not less than 16 mm.

3. The joint connection structure of a cross-shaped steel column without flange and a steel beam according to claim 1, characterized in that, The vertical distance between the upper diaphragm (3) and the lower diaphragm (4) is not less than 300 mm.

4. A joint connecting structure of a cruciform steel column without flange and a steel beam, characterized by The cross-shaped steel frame column (1) is arranged vertically to the ground, the steel beam (2) is fixedly connected to the middle or top of the cross-shaped steel frame column (1), the cross-shaped steel frame column (1) comprises a first single plate (13) and a second single plate (14) which are crossed and vertical, the steel beam (2) comprises a web (15), an upper flange (5) and a lower flange (6), the upper flange (5) and the lower flange (6) are fixedly connected to the two sides of the web (15) in parallel and symmetrically, the web (15) is parallel to the first single plate (13), and the web (15) is directly welded to the first single plate (13); the upper diaphragm (3) and the lower diaphragm (4) are fixedly arranged between the first single plate (13) and the second single plate (14) in a spaced manner, the upper diaphragm (3) is parallel to and fixedly connected to the upper flange (5), and the lower diaphragm (4) is parallel to and fixedly connected to the lower flange (6); a wedge-shaped haunch plate (9) is arranged between the upper diaphragm (3) and the upper flange (5) and between the lower diaphragm (4) and the lower flange (6).

5. The joint connection structure of a cross-shaped steel column without flanges and a steel beam according to claim 4, characterized in that, The thickness of the wedge-shaped haunch plate (9) is the same as the thickness of the corresponding flange.

6. A joint connecting structure of a cruciform steel column without flange and a steel beam, characterized by The application relates to a cross-shaped steel frame column (1) without flanges, a first steel beam (11), a second steel beam (12), an upper partition plate (3) and a lower partition plate (4), wherein the cross-shaped steel frame column (1) is arranged vertically to the ground, the first steel beam (11) and the second steel beam (12) are fixedly connected to the two sides of the cross-shaped steel frame column (1) respectively, the cross-shaped steel frame column (1) comprises first single plates (13) and second single plates (14) which are perpendicular and cross, the height of the first steel beam (11) is greater than the height of the second steel beam (12), and the height difference between the two is less than 150 mm, the upper partition plate (3) and the lower partition plate (4) are fixedly arranged between the first single plates (13) and the second single plates (14) at intervals, the upper flange (5) of the second steel beam (12), the upper flange (5) of the second steel beam transition section (16) and the upper partition plate (3) are coplanar and fixedly connected, the lower flange (6) of the second steel beam transition section (16) is arranged in an inclined mode and is connected to the lower partition plate (4) through a gentle slope transition, and the lower flange (6) of the first steel beam (11) is coplanar and fixedly connected to the lower partition plate (4).

7. The joint connection structure of a cross-shaped steel column without flanges and a steel beam according to claim 6, characterized in that, The slope of the lower flange (6) of the second steel beam transition section (16) is not greater than 1:

3.

8. The joint connection structure of a cross-shaped steel column without flanges and a steel beam according to claim 6, characterized by The root of the upper flange (5) and the root of the lower flange (6) of the second steel beam transition section (16) are provided with wedge-shaped haunch plates (9), and the thickness of the wedge-shaped haunch plates (9) is equal to the thickness of the corresponding flange.

9. A joint connecting structure of a cruciform steel column without flange and a steel beam, characterized by The application relates to a cross-shaped steel frame column (1) without flanges, a first steel beam (11), a second steel beam (12), an upper partition plate (3), a middle partition plate (10) and a lower partition plate (4), wherein the cross-shaped steel frame column (1) is arranged vertically to the ground, the first steel beam (11) and the second steel beam (12) are fixedly connected to the two sides of the cross-shaped steel frame column (1) respectively, the cross-shaped steel frame column (1) comprises first single plates (13) and second single plates (14) which are perpendicular and cross, the height of the first steel beam (11) is greater than the height of the second steel beam (12), and the height difference between the two is not less than 150 mm, the upper partition plate (3), the middle partition plate (10) and the lower partition plate (4) are fixedly arranged between the first single plates (13) and the second single plates (14) at intervals, the upper flange (5) of the first steel beam (11), the upper flange (5) of the second steel beam (12) and the upper partition plate (3) are coplanar and fixedly connected, the lower flange (6) of the second steel beam (12) is coplanar and fixedly connected to the middle partition plate (10), and the lower flange (6) of the first steel beam (11) is coplanar and fixedly connected to the lower partition plate (4).

10. The joint connection structure of a cross-shaped steel column without flanges and a steel beam according to claim 9, characterized by The root of the upper flange (5) of the first steel beam (11), the root of the upper flange (5) of the second steel beam (12), the root of the lower flange (6) of the first steel beam (11) and the root of the lower flange (6) of the second steel beam (12) are provided with wedge-shaped haunch plates (9), and the thickness of the wedge-shaped haunch plates (9) is equal to the thickness of the corresponding flange.

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