Steel structure of refuge storey of high-rise building

Abstract

The high-rise building refuge storey steel structure comprises a first frame column and a second frame column which are oppositely and obliquely arranged, and an upper chord beam, a waist truss and a lower chord beam are sequentially and horizontally arranged between the first frame column and the second frame column from top to bottom; the lower portion of the first frame column and the lower portion of the second frame column are provided with first nodes and connected with a first inclined strut and a second inclined strut through the first nodes, the first inclined strut and the second inclined strut are oppositely and obliquely arranged, and the middle of the upper chord beam is provided with second nodes and connected with the first inclined strut and the second inclined strut through the second nodes. Third joints are further arranged on the side faces of the lower portions of the first frame column and the second frame column. The upper chord beam, the waist truss and the lower chord beam are arranged on the first frame column and the second frame column, meanwhile, the first inclined strut and the second inclined strut are arranged, and the first inclined strut and the second inclined strut are connected with the waist truss, so that the supporting effect is guaranteed; and by arranging the third joints, other frame columns can be connected through the third joints, connection and fixation are facilitated, and overall construction is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of steel structure high-rise buildings, and in particular to a steel structure of a refuge floor of a high-rise building. Background Art

[0002] A refuge floor refers to a floor in a high-rise building used for fire refuge. Generally, high-rise buildings with a building height of more than 100m have floors specially set up for people to evacuate and take refuge for fire safety. The smoke-proof stairwells passing through the refuge floor should be separated on the refuge floor, and the same floor should be staggered or disconnected from the upper floor. People must pass through the refuge floor to go up and down.

[0003] At present, the truss structure of the refuge floor of high-rise buildings mostly adopts cantilever truss. The basic structure includes supporting columns, diagonal braces and steel beams. There are many structures. At the same time, for some specially designed floor structures, the diagonal braces and steel beams are adjusted according to the position of the supporting columns, which makes the installation inconvenient. Utility Model Content

[0004] The present application provides a steel structure for a refuge floor of a high-rise building which is easy to install and adjust.

[0005] The steel structure of a high-rise building refuge floor provided in this application adopts the following technical solution:

[0006] A steel structure for a refuge floor of a high-rise building comprises a first frame column and a second frame column which are arranged obliquely towards each other, an upper chord beam, a waist truss and a lower chord beam being horizontally arranged in sequence from top to bottom between the first frame column and the second frame column, a first node being arranged at the lower part of the first frame column and the second frame column and being connected with a first diagonal brace and a second diagonal brace via the first node, the first diagonal brace and the second diagonal brace being arranged obliquely towards each other, a second node being arranged at the middle part of the upper chord beam and being connected with the first diagonal brace and the second diagonal brace via the second node, the middle parts of the first diagonal brace and the second diagonal brace being connected with the waist truss, and a third node being arranged at the lower side surface of the first frame column and the second frame column.

[0007] Preferably, the first frame column and the second frame column are hollow cylindrical and concrete is poured inside the first frame column and the second frame column. Partitions are arranged inside the first frame column and the second frame column. There are multiple partitions and the partitions are arranged along the height direction of the first frame column and the second frame column. Through holes are provided on the partitions.

[0008] Preferably, the edges of the partitions are provided with notches or grooves, and vertical connecting plates are provided between adjacent partitions.

[0009] Preferably, the upper chord beam, waist truss and lower chord beam are all I-beams and are provided with transverse stiffening plates, longitudinal stiffening plates and hanging rings, the first frame column and the second frame column are provided with structural beams and are welded to both ends of the upper chord beam, waist truss and lower chord beam, and connecting beams are provided between the structural beam and the first frame column and the second frame column.

[0010] Preferably, the first node includes two first node plates parallel to each other, the first node plates are welded to the lower side surfaces of the first frame column and the second frame column, and both ends of the lower chord beam, the lower end of the first diagonal brace and the lower end of the second diagonal brace are provided with grooves and are welded to the first node plates through the grooves.

[0011] Preferably, the second node includes two second node plates parallel to each other, the middle part of the upper chord beam, the upper end of the first diagonal brace and the upper end of the second diagonal brace are provided with grooves and are welded to the second node plates through the grooves, a rib plate is vertically provided in the middle part of the upper chord beam and both sides of the rib plate are welded to the second node plate, and the length of the rib plate is not less than the length of the second node plate.

[0012] Preferably, the first diagonal brace and the second diagonal brace are both box-type components, the waist truss is welded to the first diagonal brace and the second diagonal brace, and the waist truss passes through the first diagonal brace and the second diagonal brace.

[0013] Preferably, a plurality of H-shaped steels are vertically arranged on the side surfaces of the upper chord beam and the lower chord beam, and a reinforcing cross beam is connected via the H-shaped steels.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The present application arranges an upper chord beam, a waist truss and a lower chord beam on the first frame column and the second frame column, and at the same time arranges a first node at the lower part of the first frame column and the second frame column and connects the first diagonal brace and the second diagonal brace through the first node, and the first diagonal brace and the second diagonal brace are connected to the waist truss to ensure the supporting effect; at the same time, a third node is arranged on the side of the first frame column and the second frame column, and the remaining frame columns can be connected through the third node, which is convenient for connection and fixation and facilitates overall construction.

[0016] 2. By arranging partitions in the first frame column and the second frame column and arranging vertical connecting plates between the partitions, the strength and supporting effect of the first frame column and the second frame column are ensured; at the same time, notches or grooves are arranged on the edges of the partitions to facilitate welding and fixation, and through holes are arranged on the partitions to ensure the flow of poured concrete and facilitate pouring.

[0017] 3. By setting transverse and longitudinal stiffening plates on the upper chord beam, waist truss and lower chord beam, the supporting effect is ensured, and lifting rings are provided to facilitate installation and fixation; by setting structural beams on the first frame column and the second frame column, it is convenient to connect the lower chord beam, waist truss and upper chord beam, and connecting beams are provided on the structural beams to ensure the supporting effect.

[0018] 4. By arranging a rib plate in the middle of the second node plate and welding the rib plate to the second node plate, combined with the grooves arranged on the upper chord beam, the first diagonal brace and the second diagonal brace, the connection is convenient and the supporting effect is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the steel structure of the refuge floor of a high-rise building in a preferred embodiment of the present application.

[0020] Figure 2 It is a three-dimensional diagram of the steel structure of the refuge floor of a high-rise building in a preferred embodiment of the present application.

[0021] Figure 3 yes Figure 2 A local enlarged schematic diagram of point A in the middle.

[0022] Figure 4 It is a schematic diagram of the structure of the partition in the preferred embodiment of the present application.

[0023] Figure 5 It is a schematic diagram of the structure of the upper chord beam in a preferred embodiment of the present application.

[0024] Explanation of the reference numerals: 1. first frame column; 2. second frame column; 3. upper chord beam; 4. waist truss; 5. lower chord beam; 6. first node; 7. first diagonal brace; 8. second diagonal brace; 9. second node; 10. third node; 11. partition; 12. vertical connecting plate; 13. structural beam; 14. connecting beam; 15. rib plate; 16. reinforcing cross beam. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings.

[0026] The embodiment of the present application discloses a steel structure of a refuge floor of a high-rise building.

[0027] Reference Figures 1 to 5A steel structure of a refuge floor of a high-rise building includes a first frame column 1 and a second frame column 2 which are arranged obliquely toward each other. The first frame column 1 and the second frame column 2 are hollow cylindrical and concrete is poured in the first frame column 1 and the second frame column 2. Partitions 11 are arranged in the first frame column 1 and the second frame column 2. The partitions 11 are multiple and are arranged along the height direction of the first frame column 1 and the second frame column 2. Through holes are provided on the partitions 11 to ensure the flow of poured concrete. At the same time, notches or grooves are provided on the edges of the partitions 11 to facilitate fixing the partitions during welding. Vertical connecting plates 12 are arranged between adjacent partitions 11 to strengthen support and ensure the fixation of the partitions 11.

[0028] Reference Figure 1 and Figure 2 , an upper chord beam 3, a waist truss 4 and a lower chord beam 5 are horizontally arranged between the first frame column 1 and the second frame column 2 from top to bottom. Specifically, a structural beam 13 is arranged on the first frame column 1 and the second frame column 2, and the structural beam 13 is welded to the two ends of the upper chord beam 3, the waist truss 4 and the lower chord beam 5. A connecting beam 14 is arranged between the structural beam 13 and the first frame column 1 and the second frame column 2 to ensure stable connection; the upper chord beam 3, the waist truss 4 and the lower chord beam 5 are all I-beams and are provided with transverse stiffening plates, longitudinal stiffening plates and hanging rings thereon to ensure support effect and facilitate installation; a first node 6 is arranged at the lower part of the first frame column 1 and the second frame column 2, and a first diagonal brace 7 and a second diagonal brace are connected through the first node 6 The first and second diagonal braces 7 and 8 are arranged obliquely towards each other, and both of them are box-type components. The waist truss 4 is welded with the first and second diagonal braces 7 and 8, and the waist truss 4 is arranged through the first and second diagonal braces 7 and 8. A second node 9 is arranged in the middle of the upper chord beam 3 and is connected with the first and second diagonal braces 7 and 8 through the second node 9. The middle parts of the first and second diagonal braces 7 and 8 are connected with the waist truss 4. The lower sides of the first frame column 1 and the second frame column 2 are also provided with a third node 10, and the third node 10 can be connected to other frame columns to form a ring-shaped supporting structure. A plurality of H-shaped steels are vertically arranged on the sides of the upper chord beam 3 and the lower chord beam 5, and a reinforcing cross beam 16 is connected through the H-shaped steel.

[0029] Reference Figure 1 , Figure 2 and Figure 5The first node 6 includes two first node plates parallel to each other, the first node plates are welded to the lower side surfaces of the first frame column 1 and the second frame column 2, both ends of the lower chord beam 5, the lower end of the first diagonal brace 7 and the lower end of the second diagonal brace 8 are provided with grooves and are welded to the first node plates through the grooves; the second node 9 includes two second node plates parallel to each other, the middle part of the upper chord beam 3, the upper end of the first diagonal brace 7 and the upper end of the second diagonal brace 8 are provided with grooves and are welded to the second node plates through the grooves, a rib plate 15 is vertically provided in the middle part of the upper chord beam 3 and both sides of the rib plate 15 are welded to the second node plate, and the length of the rib plate 15 is not less than the length of the second node plate.

[0030] The implementation principle is as follows: the present application arranges an upper chord beam 3, a waist truss 4 and a lower chord beam 5 on the first frame column 1 and the second frame column 2, and at the same time arranges a first node 6 at the lower part of the first frame column 1 and the second frame column 2 and connects the first diagonal brace 7 and the second diagonal brace 8 through the first node 6, and the first diagonal brace 7 and the second diagonal brace 8 are connected to the waist truss 4 to ensure the supporting effect; at the same time, a third node 10 is arranged on the side of the first frame column 1 and the second frame column 2, and the remaining frame columns can be connected through the third node 10, which is convenient for connection and fixation and facilitates the overall construction.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A steel structure for a refuge floor of a high-rise building, characterized in that: The invention comprises a first frame column (1) and a second frame column (2) which are arranged to be inclined toward each other, an upper chord beam (3), a waist truss (4) and a lower chord beam (5) are arranged horizontally in sequence from top to bottom between the first frame column (1) and the second frame column (2), a first node (6) is arranged at the lower part of the first frame column (1) and the second frame column (2), and a first diagonal brace (7) and a second diagonal brace (8) are connected through the first node (6), the first diagonal brace (7) and the second diagonal brace (8) are arranged to be inclined toward each other, a second node (9) is arranged at the middle part of the upper chord beam (3), and the first diagonal brace (7) and the second diagonal brace (8) are connected through the second node (9), the middle part of the first diagonal brace (7) and the second diagonal brace (8) are connected to the waist truss (4), and a third node (10) is also arranged on the lower side surface of the first frame column (1) and the second frame column (2).

2. A steel structure for a refuge floor of a high-rise building according to claim 1, characterized in that: The first frame column (1) and the second frame column (2) are hollow cylindrical and concrete is poured inside the first frame column (1) and the second frame column (2). Partition plates (11) are arranged inside the first frame column (1) and the second frame column (2). The partition plates (11) are multiple and are arranged along the height direction of the first frame column (1) and the second frame column (2). Through holes are provided on the partition plates (11).

3. A high-rise building refuge floor steel structure according to claim 2, characterized in that: The edges of the partitions (11) are provided with notches or grooves, and vertical connecting plates (12) are provided between adjacent partitions (11).

4. The steel structure of a high-rise building refuge floor according to claim 1, characterized in that: The upper chord beam (3), waist truss (4) and lower chord beam (5) are all I-beams and are provided with transverse stiffening plates, longitudinal stiffening plates and hanging rings. The first frame column (1) and the second frame column (2) are provided with a structural beam (13) and the structural beam (13) is welded to the upper chord beam (3), waist truss (4) and lower chord beam (5) at both ends. A connecting beam (14) is provided between the structural beam (13) and the first frame column (1) and the second frame column (2).

5. The steel structure of a high-rise building refuge floor according to claim 1, characterized in that: The first node (6) comprises two first node plates parallel to each other, the first node plates are welded to the lower side surfaces of the first frame column (1) and the second frame column (2), and both ends of the lower chord beam (5), the lower end of the first diagonal brace (7) and the lower end of the second diagonal brace (8) are provided with grooves and are welded to the first node plates through the grooves.

6. The steel structure of a high-rise building refuge floor according to claim 1, characterized in that: The second node (9) comprises two second node plates parallel to each other, the middle part of the upper chord beam (3), the upper end of the first diagonal brace (7) and the upper end of the second diagonal brace (8) are provided with grooves and are welded to the second node plates through the grooves, a rib plate (15) is vertically provided in the middle part of the upper chord beam (3) and both sides of the rib plate (15) are welded to the second node plate, and the length of the rib plate (15) is not less than the length of the second node plate.

7. The steel structure of a high-rise building refuge floor according to claim 1, characterized in that: The first diagonal brace (7) and the second diagonal brace (8) are both box-type components, the waist truss (4) is welded to the first diagonal brace (7) and the second diagonal brace (8), and the waist truss (4) passes through the first diagonal brace (7) and the second diagonal brace (8).

8. The steel structure of a high-rise building refuge floor according to claim 1, characterized in that: A plurality of H-shaped steels are vertically arranged on the side surfaces of the upper chord beam (3) and the lower chord beam (5), and a reinforcing cross beam (16) is connected via the H-shaped steels.

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