A keel hoop connection structure

Abstract

The present invention relates to the technical field of prefabricated partition walls, and particularly to a keel hoop connection structure. It is used for the connection between a vertical keel and an inclined support, and includes a hoop sleeved on the inclined support. The hoop includes a first half-ring and a second half-ring, at least one end of the first half-ring is detachably connected to the end of the second half-ring, and the vertical keel is connected to the first half-ring or / and the second half-ring. In this application, the vertical keel and the inclined support are connected through a hoop structure. The hoop structure is only sleeved on the inclined support without causing any damage to the inclined support, effectively avoiding the damage to the fireproof coating on the inclined support, and also avoiding the problem of nail driving damage to the inclined support, which causes stress imbalance of the inclined support and affects the frame strength.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated partition walls, and particularly to a keel hoop connection structure. Background Art

[0002] With the booming development of prefabricated steel structure buildings, systematic technical research aiming to improve their service functions and sustainable performance is continuously carried out. The peripheral enclosure structures (external walls, roofs, doors, windows) and their connection nodes with the steel structure main body have important impacts on the seismic resistance, wind resistance, fire protection, waterproofing, sound insulation, heat insulation and other performances of the building.

[0003] The steel diagonal brace refers to the steel frame - diagonal brace system in a steel structure building, mainly including a square steel frame and diagonal braces arranged on the diagonals of the steel frame. When it is necessary to install a partition wall structure at this kind of position, due to the obstruction and influence of the diagonal braces, there is a problem of inconvenient installation. Generally, the installation of a prefabricated skeleton partition wall is applicable to the situation where there are no diagonal brace members in the plane where the wall is located. For a building with a steel frame structure, there is currently a lack of an installation scheme for a skeleton partition wall with diagonal braces.

[0004] The patent document with the publication number CN213952489U discloses such a connection structure between a diagonal brace and a vertical keel, including: a vertical keel; a first node plate and a second node plate, which are respectively arranged on both sides of the vertical keel, and both the first node plate and the second node plate are provided with through - holes and are threadedly connected to the vertical keel through the through - holes; a diagonal brace, which is arranged between the first node plate and the second node plate and is threadedly connected to the first node plate and the second node plate through the through - holes.

[0005] In this structure, the connection between the vertical keel and the diagonal brace is realized through the node plate. When connecting, it is necessary to perforate and damage the diagonal brace through screws. However, fire - proof coatings are generally provided on the frame and diagonal brace members, and nailing operations on them are likely to damage the fire - proof coatings thereon. Summary of the Invention

[0006] The present invention aims to solve the above problems and provides a keel hoop connection structure.

[0007] The technical solution for the present invention to solve the problem is to provide a keel hoop connection structure for connecting a vertical keel and a diagonal brace, including a hoop sleeved on the diagonal brace, the hoop including a first half - hoop and a second half - hoop, at least one end of the first half - hoop being detachably connected to the end of the second half - hoop, and the vertical keel being connected to the first half - hoop or / and the second half - hoop.

[0008] Preferably, the diagonal brace is a prism structure.

[0009] Preferably, both ends of the first semi-ring are detachably connected to both ends of the second semi-ring respectively.

[0010] Preferably, one of the holding rings is connected to at least one pair of vertical keels; in each pair of vertical keels, the two vertical keels are arranged side by side along the width direction of the inclined support, and the two vertical keels are respectively connected to the first semi-ring and the second semi-ring.

[0011] Preferably, the vertical keel and the holding ring are connected by a connecting member; the connecting member includes a first connecting portion that overlaps and is connected to the vertical keel and a second connecting portion that overlaps and is connected to the outer surface of the holding ring.

[0012] Preferably, the vertical keel includes a bottom plate and side plates respectively arranged at both ends of the bottom plate, and the connecting member includes two first connecting portions, and the two first connecting portions are respectively connected to the two side plates.

[0013] Preferably, the side plate includes an inner side surface close to the bottom plate and an outer side surface opposite to the inner side surface, and the two first connecting portions respectively overlap and are connected to the inner side surfaces of the two side plates.

[0014] Preferably, the ends of the first semi-ring and the second semi-ring are respectively provided with flanging plates, and the flanging plate of the first semi-ring and the flanging plate of the second semi-ring are detachably connected by a screw-nut structure.

[0015] Preferably, in each pair of vertical keels, a reinforcing member is further provided between the two vertical keels, and the reinforcing member includes a supporting portion and reinforcing portions respectively arranged at both ends of the supporting portion, and the two reinforcing portions are respectively connected to the two vertical keels.

[0016] Preferably, the inclined support is provided with a fireproof coating.

[0017] Advantages of the present invention:

[0018] 1. In the present application, the vertical keel and the inclined support are connected by a hoop structure. The hoop structure is only sleeved on the inclined support and will not cause any damage to the inclined support, effectively avoiding the damage of the fireproof coating on the inclined support. At the same time, it also avoids the problem of stress imbalance of the inclined support caused by nail driving damage to the inclined support and affecting the strength of the frame.

[0019] 2. In the present application, the inclined support is set as a prism structure. Compared with a cylindrical structure, after the holding ring is sleeved on it, it is blocked by the edges and will not rotate, ensuring the accuracy of the installation position of the hoop structure and the stability after installation, and further ensuring the verticality of the vertical keel after installation.

[0020] 3. In this application, a pair of vertical keels are installed on a holding ring, which can balance the force on the holding ring and improve the stability of the connection structure. In addition, the pair of vertical keels can be used to install exterior wall panels and interior wall panels respectively, which can save decoration costs.

[0021] 4. In this application, a connecting piece is added between the holding ring and the vertical keel. By means of the connecting piece, the connection area between the holding ring and the vertical keel is increased, and the connection strength is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the use of a keel hoop connection structure;

[0023] Figure 2 is a front view of the use of a keel hoop connection structure;

[0024] Figure 3 is a schematic diagram of the connection between the vertical keel and the hoop structure in a keel hoop connection structure;

[0025] Figure 4 is Figure 3 an enlarged view of part A in;

[0026] Figure 5 is a schematic diagram of Embodiment 1 of the hoop structure in a keel hoop connection structure;

[0027] Figure 6 is Figure 3 an enlarged view of part B in;

[0028] Figure 7 is a schematic diagram of Embodiment 2 of the hoop structure in a keel hoop connection structure;

[0029] Figure 8 is a schematic diagram of Embodiment 3 of the hoop structure in a keel hoop connection structure;

[0030] In the figure: vertical keel 1, bottom plate 11, side plate 12, inclined support 2, reinforcement 3, support part 31, reinforcement part 32, holding ring 41, first half ring 411, second half ring 412, connecting piece 42, first connecting part 421, second connecting part 422, flanging plate 413. DETAILED DESCRIPTION OF THE INVENTION

[0031] The following are the specific embodiments of the present invention, and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0032] Embodiment 1

[0033] A keel hoop connection structure, as shown in Figure 1 and Figure 2As shown in the figure, it is applied to a steel inclined frame with inclined supports 2. The keel frame composed of several vertical keels 1 is used as the connection structure between the steel inclined frame and the wall panel.

[0034] The steel inclined frame refers to a structure with inclined supports 2 arranged on the diagonal of a frame body. Fireproof coatings are provided on the surfaces of both the frame body and the inclined supports 2. The frame body includes a pair of horizontal fixing members and a pair of vertical fixing members. The horizontal fixing members refer to members with a horizontal length direction, and the vertical fixing members refer to members with a vertical length direction. The two horizontal members and the two vertical members are sequentially connected end to end to form a square frame body. The specific structures of the horizontal fixing members and the vertical fixing members are not limited, and various common keels on the market can be used, such as square tube keels, I-shaped keels, C-shaped keels, etc. independently. In this embodiment, both of the two vertical fixing members are selected as square tube keels, which have flat side plates and can be used to install wall panels on both of their side surfaces respectively. And the two side plates are connected by two connecting plates, having good support strength; while both of the two horizontal fixing members are selected as I-shaped keels, also known as H-shaped keels, which also have flat side plates and are convenient for installation. At the same time, based on their I-shaped structure, compared with square tube keels and C-shaped keels, both of their ends have flanges, which are convenient for subsequent balanced lap installation. The horizontal fixing members and the vertical fixing members can be fixed together in various ways. For example, the end face of the horizontal fixing member can be directly welded to the side surface of the vertical fixing member; after the horizontal fixing member and the vertical fixing member are spliced, gusset plates can be additionally provided on both sides of their connection. One gusset plate is welded to both the side surface of the horizontal fixing member and the side surface of the vertical fixing member; or both of the above connection methods can be used at the same time. In this embodiment, based on the subsequent installation of the inclined supports 2, different fixing methods are respectively adopted at the four connections between the horizontal fixing members and the vertical fixing members. As Figure 1 shown, it includes four connections: upper left, upper right, lower left, and lower right. The inclined support 2 is arranged on the diagonal of the frame body, that is, the two ends of the inclined support 2 are respectively connected to the upper left and lower right connections, or the two ends of the inclined support 2 are respectively connected to the upper right and lower left connections. In this embodiment, the latter is adopted. Therefore, at the upper left and lower right connections, the fixing method of directly welding the end face of the horizontal fixing member to the side surface of the vertical fixing member can be adopted; at the upper right and lower left connections, on the basis of direct welding, gusset plates are respectively added on both sides of each connection. One gusset plate is welded to the horizontal fixing member, the vertical fixing member, and the inclined support 2, playing a role in reinforcement and installation of the inclined support 2. A floor slab will also be installed on the steel inclined frame. The floor slab is mainly installed on the lower horizontal fixing member. In order to improve the support strength for the floor slab, the floor slab is lapped on the top of the horizontal fixing member.

[0035] To form a complete wall, wall panels need to be installed on the steel diagonal frame. Before that, several vertical keels 1 need to be installed first to form a wall panel keel frame structure for fixing the wall panels and ensuring the support strength for the wall panels. Due to the obstruction of the diagonal brace 2, a whole keel in the traditional solution needs to be cut into the upper and lower vertical keels 1 in this application. When installing, the upper and lower vertical keels 1 are preferably installed on the same straight line. The two ends of the vertical keel 1 in the length direction are respectively connected to the transverse fixing member and the diagonal brace 2. Based on the different distances between the transverse fixing member and the diagonal brace 2 at different positions, the lengths of the respective vertical keels 1 are different. Generally, the vertical keels 1 with the required lengths are obtained by cutting after measurement at the assembly site. The structure of the vertical keel 1 is not limited, but at least includes a flat side plate 12. During installation, adjust its side plate 12 to be outside and parallel to the vertical plane for installing the wall panel. The vertical keel 1 can be a square tube keel, an I-shaped keel or a U-shaped keel. In this embodiment, a U-shaped keel is adopted. As Figure 4 shown, it includes a bottom plate 11 and side plates 12 respectively arranged at both ends of the bottom plate.

[0036] To avoid damage to the fireproof coating, the vertical keel 1 is connected to the diagonal brace 2 through a hoop structure. As Figure 1 and Figure 2 shown, the hoop structure includes a hoop 41 sleeved on the diagonal brace 2, and the hoop 41 is a detachable structure. As Figure 4 and Figure 5 shown, the hoop 41 includes a first half hoop 411 and a second half hoop 412. The first half hoop 411 and the second half hoop 412 respectively have two ends, and at least one end of the first half hoop 411 is detachably connected to the end of the second half hoop 412. For example: the lower end of the first half hoop 411 can be hinged to the lower end of the second half hoop 412, and flanging plates 413 are respectively provided at the upper ends of the first half hoop 411 and the second half hoop 412, and the two flanging plates 413 are detachably connected through a screw and nut structure; alternatively, flanging plates 413 can be provided at both ends of the first half hoop 411 and both ends of the second half hoop 412, and the flanging plates 413 at both ends are respectively detachably connected through a screw and nut structure; in this embodiment, the latter structure with detachable ends at both ends is adopted to facilitate adapting to diagonal braces 2 with different widths. Among them, the screw and nut structure means that through holes are respectively provided on the two flanging plates 413, the tail of a screw is sequentially passed through the two through holes, and the head of the screw is made to abut against the flanging plate 413, and then a nut is threadedly connected to the tail. Rotate the nut to reduce the distance between the two flanging plates 413 through the abutting action of the nut until the first half hoop 411 and the second half hoop 412 respectively abut against the diagonal brace 2.

[0037] The shape of the inner surfaces of the first half-ring 411 and the second half-ring 412 should match the shape of the outer surface of the inclined support 2. For example, when the inclined support 2 is a circular pipe column, the inner surfaces of the first half-ring 411 and the second half-ring 412 are arc-shaped; when the inclined support 2 is a square pipe column, the inner surfaces of the first half-ring 411 and the second half-ring 412 are U-shaped. Since when the inclined support 2 is a circular pipe column, the holding ring 41 is likely to rotate on the inclined support 2, affecting the position of the connecting structure of the folded edge plate 413 of the holding ring 41, and further affecting the installation position of the subsequent vertical keel 1, therefore, in this embodiment, the inclined support 2 is a square pipe with a prism structure.

[0038] The vertical keel 1 needs to be connected to the holding ring 41. When connecting, based on the different numbers and sizes of the vertical keels 1, the vertical keel 1 can be connected only to the first half-ring 411, or only to the second half-ring 412, or simultaneously to the first half-ring 411 and the second half-ring 412. Considering that if only one half-ring in the holding ring 41 is subjected to the connecting action of the vertical keel 1, there may be a problem of unbalanced overall force on the holding ring 41. Therefore, in this embodiment, as Figure 3 and Figure 4 shown, two rows of wall panel keel frames are provided, and the two wall panel keel frames are arranged in sequence along the width direction of the transverse fixing member. The vertical keels 1 in the two rows of wall panel keel frames are arranged side by side, and the two side-by-side vertical keels 1 are respectively connected to the first half-ring 411 and the second half-ring 412, playing a role in balancing the force received by the holding ring 41.

[0039] The vertical keel 1 can be directly welded to the holding ring 41 at its end. However, considering that the solid area at the end of the vertical keel 1 is small, affecting the welding strength, therefore, in this embodiment, the hoop structure further includes a connecting member 42 for connecting the vertical keel 1 and the holding ring 41. As Figure 4 and Figure 5As shown, the connecting member 42 includes a first connecting portion 421 that overlaps and connects with the vertical keel 1, and a second connecting portion 422 that overlaps and connects with the outer surface of the holding ring 41. The connecting member 42 can be L-shaped. The first connecting portion 421 can be welded after overlapping with the bottom plate 11 or the side plate 12 of the U-shaped vertical keel 1. When overlapping, it can overlap with the inner or outer side surface of the bottom plate 11, or the inner or outer side surface of the side plate 12. The connecting member 42 can also be U-shaped, including two first connecting portions 421. The two first connecting portions 421 are respectively welded after overlapping with the two side plates 12 of the vertical keel 1. In this embodiment, the U-shaped connecting member 42 is adopted to increase the connection area and improve the connection strength between the vertical keel 1 and the connecting member 42. Specifically, when connecting, the two first connecting portions 421 can be respectively and independently connected to the inner or outer side surface of the side plate 12. In this embodiment, the side plate 12 of the vertical keel 1 facing outward and used for subsequent connection with the wall panel is connected to the first connecting portion 421 through the inner side surface to ensure its flat outer side surface; correspondingly, in order to ensure the balance and stability of the connection between the vertical keel 1 and the connecting member 42, the inner side plate 12 of the vertical keel 1 is also connected to the first connecting portion 421 through the inner side surface. The second connecting portion 422 is in a shape that matches the outer surface of the holding ring 41. In this embodiment, the second connecting portion 422 can be selected as a flat plate structure.

[0040] In each pair of vertical keels 1 of this embodiment, one end of the vertical keel 1 close to the holding ring 41 is fixed and limited by the connecting member 42. And some vertical keels 1 are relatively long. If the other end is not fixed and limited, this end is prone to tilt, which will affect the parallelism between the two vertical keels 1. Therefore, in this embodiment, as Figure 6 shown, in each pair of vertical keels 1, a reinforcing member 3 is further provided between the two vertical keels. The reinforcing member 3 is preferably arranged at the end of the vertical keel 1. The reinforcing member 3 includes a supporting portion 31 and reinforcing portions 32 respectively arranged at both ends of the supporting portion 31. The two reinforcing portions 32 are respectively connected after overlapping with the side plates 12 of the two vertical keels 1. It can be connected to the inner side surface of the side plate 12 close to the bottom plate 11, or to the outer side surface away from the bottom plate 11. In this embodiment, the latter is adopted to avoid the reinforcing portion 32 protruding from the end face of the vertical keel 1 and affecting the subsequent connection between the vertical keel 1 and the transverse fixing member.

[0041] The vertical keel 1 also needs to be connected to the transverse fixing member. In this embodiment, the above-mentioned reinforcement member 3 can be directly used to connect the support portion 31 of the reinforcement member 3 to the transverse fixing member. Considering the subsequent installation of the wall panel, a limit seat is also provided between the support portion 31 and the transverse fixing member. The limit seat is U-shaped, including a first fixing portion connected to the transverse fixing member and a limit portion respectively arranged at both ends of the first fixing portion. A U-shaped slot is formed between the first fixing portion and the limit portion. The end of the vertical keel 1 is inserted into the slot. A gap is formed between the vertical keel 1 and the limit portion for the wall panel to be inserted. The reinforcement member 3 is also arranged in the slot. The first fixing portion and the support portion 31 are fixed by expansion screws after being overlapped. In the lower transverse fixing member, since the floor slab is overlapped on the transverse fixing member, the first fixing portion here is actually connected to the floor slab. The transverse fixing member is provided with a fireproof coating, but the partition is usually made of concrete and does not need to be provided with a fireproof coating. Therefore, the first fixing portion can be directly placed on the floor slab and connected by expansion bolts. In the upper transverse fixing member, since there is no floor structure between it and the vertical keel 1, in order to avoid the first fixing part from damaging the layer when installing on the transverse fixing member, a lap joint structure is added here in this embodiment. First of all, the above-mentioned transverse fixing member is selected as an I-shaped keel, which includes a parallel top plate and a bottom plate, and the top plate and the bottom plate are connected by a vertical plate, so that the two ends of the top plate form a folded edge, and the two ends of the bottom plate also form a folded edge. Considering that the upper transverse fixing member is also a receiving transverse fixing member of the upper partition, the lap joint is overlapped with the two folded edges of the bottom plate of the transverse fixing member. The lap joint first includes a first lap joint portion arranged on the side of the folded edge away from the vertical keel 1. This setting method can be an overlap, so it will not cause damage to the folded edge fire retardant coating; at the same time, in order to facilitate subsequent connection, a first installation portion is also connected non-parallel to the first lap joint portion. In order to improve the strength, the two are preferably connected vertically. In cooperation with the first mounting portion, a second mounting portion connected to the first fixing portion is also included. The first fixing portion can be mounted on the horizontal fixing member by overlapping the first mounting portion and the second mounting portion and then connecting them by screws. Furthermore, in order to improve the connection strength between the vertical second mounting portion and the horizontal first fixing portion, a second overlapping portion is also provided. The second overlapping portion is overlapped and connected with the outer side surface of the first fixing portion, thus completing the installation of the second mounting portion on the first fixing portion.

[0042] In the above manner, a plurality of vertical keels 1 can be installed into the steel inclined frame. Since there are gaps between the vertical keels 1, if the wallboard is directly installed thereon, the wallboard part located in the gap will not be supported and is liable to break under stress. Therefore, in this embodiment, a plate member is provided between two adjacent vertical keels 1 along the length direction of the transverse fixing member. The plate member can be directly cut into the desired shape and then clamped between the two vertical keels 1. When necessary, an adhesive can be added for reinforcement. The plate member can be selected as a thermal insulation board, such as a rock wool board, which not only plays a supporting role but also has the functions of heat preservation and sound insulation. The plate surface of the plate member is preferably flush with the installation surface for connecting with the wallboard of the vertical keel 1, that is, the outer side surface. The outer side surface of the vertical keel 1 and the plate surface of the plate member together form a vertical surface to ensure the flatness of the subsequent wallboard installation. Then, the wallboard can be installed. The wallboard can be selected as a gypsum board. A gap is reserved between the vertical keel 1 and the limiting portion in the limiting seat as described above. When installing the wallboard, the upper and lower ends of the wallboard can be directly inserted into the gaps in the upper and lower limiting seats respectively. To further ensure the installation stability of the wallboard, the wallboard and the vertical keel 1 can also be fixed by screwing.

[0043] Embodiment 2

[0044] This embodiment is basically the same as Embodiment 1, and the difference lies only in that:

[0045] As Figure 7 shown, in this embodiment, the inclined support 2 is a cylindrical structure. Correspondingly, both the first half-ring 411 and the second half-ring 412 are semi-circular ring structures. At the same time, the second connecting portion 422 in the connecting member 42 is set as an arc plate with the same radian as the outer surface of the semi-circular ring structure, and vertical first connecting portions 421 are respectively provided at both ends of the arc plate.

[0046] Embodiment 3

[0047] This embodiment is basically the same as Embodiment 1, and the difference lies only in that:

[0048] As Figure 8 shown, in this embodiment, first, only one end of the first half-ring 411 is detachably connected to the end of the second half-ring 412. Specifically: the lower end of the first half-ring 411 is hinged to the lower end of the second half-ring 412, and folding plates 413 are respectively provided at the upper ends of the first half-ring 411 and the second half-ring 412, and the two folding plates 413 are detachably connected by a screw-nut structure.

[0049] Secondly, in this embodiment, only one vertical keel 1 is installed on a holding ring 41, and the vertical keel 1 is connected to both the first half-ring 411 and the second half-ring 412 of the holding ring 41. Specifically: the vertical keel 1 is a U-shaped keel, including a bottom plate 11 and side plates 12 respectively arranged at both ends of the bottom plate 11, and the width of the bottom plate 11 is relatively large. L-shaped connectors 42 are symmetrically arranged on the first half-ring 411 and the second half-ring 412, and the two side plates 12 of the vertical keel 1 are respectively superposed and connected with the first connection parts 421 of the two connectors 42.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A keel hoop connection structure for connecting a vertical keel (1) and a diagonal brace (2), characterized in that: It includes a clamping ring (41) sleeved on the inclined support (2). The clamping ring (41) includes a first half-ring (411) and a second half-ring (412). At least one end of the first half-ring (411) is detachably connected to the end of the second half-ring (412). The vertical keel (1) is connected to the first half-ring (411) or / and the second half-ring (412). One clamping ring (41) is connected to at least one pair of vertical keels (1). In each pair of vertical keels (1), the two vertical keels (1) are arranged side by side in the width direction of the inclined support (2), and the two vertical keels (1) are respectively connected to the first half-ring (411) and the second half-ring (412).

2. The keel hoop connection structure according to claim 1, characterized in that: The inclined support (2) is a prism structure.

3. The keel hoop connection structure according to claim 1, characterized in that: The two ends of the first half-ring (411) are respectively detachably connected to the two ends of the second half-ring (412).

4. The keel hoop connection structure according to claim 1, characterized in that: The vertical keel (1) is connected to the clamping ring (41) through a connecting piece (42). The connecting piece (42) includes a first connecting part (421) that overlaps and is connected to the vertical keel (1) and a second connecting part (422) that overlaps and is connected to the outer surface of the clamping ring (41).

5. The keel hoop connection structure according to claim 4, characterized in that: The vertical keel (1) includes a bottom plate (11) and side plates (12) respectively arranged at both ends of the bottom plate (11). The connecting piece (42) includes two first connecting parts (421), and the two first connecting parts (421) are respectively connected to the two side plates (12).

6. The keel hoop connection structure according to claim 5, characterized in that: The side plate (12) includes an inner side surface close to the bottom plate (11) and an outer side surface opposite to the inner side surface. The two first connecting parts (421) respectively overlap and are connected to the inner side surfaces of the two side plates (12).

7. The keel hoop connection structure according to claim 1, characterized in that: Flanging plates (413) are respectively arranged at the ends of the first half-ring (411) and the second half-ring (412). The flanging plate (413) of the first half-ring is detachably connected to the flanging plate (413) of the second half-ring through a screw and nut structure.

8. The keel hoop connection structure according to claim 1, characterized in that: In each pair of vertical keels (1), a reinforcing member (3) is further arranged between the two vertical keels (1). The reinforcing member (3) includes a supporting part (31) and reinforcing parts (32) respectively arranged at both ends of the supporting part (31). The two reinforcing parts (32) are respectively connected to the two vertical keels (1).

9. The keel hoop connection structure according to claim 1, characterized in that: The inclined support (2) is provided with a fireproof coating.

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