Cast-in-place connection joint of steel structure davit and concrete beam

Abstract

The utility model relates to the technical field of steel structure davit installation, and discloses a cast-in-place connection node of a steel structure davit and a concrete beam, which comprises a concrete beam body and a steel structure davit body positioned below the concrete beam body, and further comprises L-shaped fixing frames positioned on two opposite sides of the concrete beam body, a plurality of fixing bolts with one ends arranged in the concrete beam body in a penetrating mode penetrate through each fixing frame, a bearing plate tightly attached to the lower side face of the concrete beam body is arranged below the two fixing frames, the bearing plate is connected with the lower side faces of the two fixing frames through bolts, and the lower side face of the bearing plate is fixedly connected with a connecting base. According to the steel structure davit, the fixing frame and the fixing bolts with one ends arranged in the concrete beam body in the penetrating mode are arranged, the fixing bolts can be pre-embedded in advance and can also be installed in the later period, and meanwhile the requirement for installation of the steel structure davit body needing to be pre-embedded and additionally arranged in the later period is met; and the application range of mounting the steel structure davit body below the concrete beam body is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure hanging column installation, in particular to a cast-in-place connection node between a steel structure hanging column and a concrete beam. Background Technique

[0002] In the existing situation, due to reasons such as building structures, it is often necessary to install steel structure hanging columns below concrete beams to maximize the utilization rate of the space inside the building.

[0003] In order to facilitate the installation of steel structure hanging columns below concrete beams, the prior art has made many improvements to the cast-in-place connection nodes between steel structure hanging columns and concrete beams. For example, the patent with the publication number CN218990490U discloses a cast-in-place connection node between a steel structure hanging column and a concrete beam, including: a number of horizontally distributed bottom beam longitudinal bars, and a number of horizontally distributed top beam longitudinal bars are arranged directly above the bottom beam longitudinal bars. A horizontal steel plate is arranged between the bottom beam longitudinal bars and the top beam longitudinal bars. Two extension steel plates arranged side by side left and right are welded on the upper surface of the horizontal steel plate. The extension steel plates are perpendicular to the orientations of the bottom beam longitudinal bars and the top beam longitudinal bars. A connecting steel bar in contact with all the top beam longitudinal bars is welded at the upper end of the extension steel plate; this utility model can directly cast the steel hanging column in the concrete beam without waiting for the concrete strength to meet the requirements before installation, greatly saving the construction period, and avoiding the cumbersome construction such as setting up platforms for later installation, greatly simplifying the construction and making the construction convenient.

[0004] The above patent has obvious beneficial effects, but there are still the following deficiencies in actual operation:

[0005] In the above comparative document, the horizontal steel plate is embedded in the concrete beam to realize the convenience of later installation of the steel structure hanging column. In reality, many steel structure hanging columns in buildings are added later. Maybe there is no such steel structure hanging column on the building drawings before pouring the concrete beam. For the later-added steel structure hanging columns, they cannot be installed through the connection nodes in the above comparative document, thus reducing the applicable range of installing steel structure hanging columns. Therefore, it is urgent in this field to improve the cast-in-place connection nodes between steel structure hanging columns and concrete beams to solve the defects of the prior art. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the utility model provides a cast-in-place connection node between a steel structure hanging column and a concrete beam, which improves the applicable range of installing the steel structure hanging column body below the concrete beam body.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A cast-in-place connection node between a steel structure hanging column and a concrete beam, including a concrete beam body and a steel structure hanging column body located below the concrete beam body, further including fixing frames located on opposite sides of the concrete beam body. The fixing frames are L-shaped, and a plurality of fixing bolts with one end inserted into the concrete beam body penetrate through each fixing frame. Below the two fixing frames, there is a bearing plate closely attached to the lower side of the concrete beam body. The lower side of the bearing plate and the lower sides of the two fixing frames are connected by bolts. A connecting seat is fixedly connected to the lower side of the bearing plate, and the upper end of the steel structure hanging column body is fixedly installed at the lower part of the connecting seat by bolts.

[0008] Preferably, it further includes a plurality of embedded threaded rods. The upper ends of the embedded threaded rods are located in the concrete beam body, the lower ends of the embedded threaded rods penetrate through the bearing plate, the upper ends of the embedded threaded rods are in a hook shape, and the ends of the fixing bolts are welded to the sides of the embedded threaded rods.

[0009] Preferably, a plurality of first adjustment slots are penetrated and opened on the fixing frames. The first adjustment slots are horizontal and adapted to the fixing bolts.

[0010] Preferably, on the side of the fixing frame away from the concrete beam body and on the bearing plate, adapted second adjustment slots are penetrated and opened. The first adjustment slots and the second adjustment slots are in a cross shape.

[0011] Preferably, a plurality of third adjustment slots are penetrated and opened on the bearing plate. The third adjustment slots and the second adjustment slots are in a cross shape.

[0012] Preferably, a positioning plate is sleeved between the sides of the plurality of embedded threaded rods, and the number of the positioning plates is at least two.

[0013] Preferably, a first connecting plate is fixedly connected to the upper end of the steel structure hanging column body, second connecting plates adapted to the first connecting plate are fixedly connected to the opposite sides of the connecting seat, and second reinforcing ribs are fixedly connected between the opposite sides of the first connecting plate and the steel structure hanging column body.

[0014] Preferably, installation openings are penetrated and opened on the opposite sides of the connecting seat, and first reinforcing ribs are fixedly connected between the two sides of the fixing frame.

[0015] Aiming at the deficiencies of the prior art, the present utility model provides a cast-in-place connection node between a steel structure hanging column and a concrete beam, overcoming the deficiencies of the prior art. The beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, by providing a fixing frame and a plurality of fixing bolts with one end inserted into the concrete beam body, the fixing bolts can be pre-embedded in advance or installed later, which can satisfy the installation requirements for both pre-embedding and later adding a steel structure hanging column body, and improve the application range of installing the steel structure hanging column body under the concrete beam body.

[0017] 2. In the present utility model, after the fixing bolts are pre-embedded or installed on-site, if the steel structure hanging column body deviates during later installation, the positions of the fixing frame and the bearing plate can be finely adjusted through the first adjustment groove, the second adjustment groove and the third adjustment groove, which improves the practicability of the overall connection node.

[0018] 3. In the present utility model, when it is necessary to pre-embed the fixing bolts and the pre-embedded threaded rods, first pass a plurality of pre-embedded threaded rods through two or more positioning plates, and weld the end of the fixing bolt to the side of the pre-embedded threaded rod by welding. At the same time, weld the positioning plate, the fixing bolt or the pre-embedded threaded rod to the beam reinforcement to improve the stability of the positions of the fixing bolts and the pre-embedded threaded rods during pre-embedding.

[0019] Other features and advantages of the present utility model will be described in the subsequent specification, and, in part, will become obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structures pointed out in the specification, the claims and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0021] Figure 1 It is a schematic structural view of the steel structure hanging column body installed under the concrete beam body in the present utility model;

[0022] Figure 2 It is a schematic structural view of the first connecting plate in the present utility model;

[0023] Figure 3 It is a schematic structural view of the fixing frame in the present utility model;

[0024] Figure 4 It is a schematic structural view of the connecting seat in the present utility model;

[0025] Figure 5 It is a schematic structural view of the positioning plate in the present utility model.

[0026] In the figure: 1. Concrete beam body; 2. Steel structure hanging column body; 3. Fixing frame; 4. Fixing bolt; 5. Bearing plate; 6. Connecting seat; 7. Embedded threaded rod; 8. First adjustment groove; 9. Second adjustment groove; 10. Third adjustment groove; 11. Positioning plate; 12. First connecting plate; 13. Second connecting plate; 14. Installation opening; 15. First reinforcing rib; 16. Second reinforcing rib. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Embodiment 1

[0029] Please refer to Figures 1 - 5 , a cast-in-place connection node between a steel structure hanging column and a concrete beam, including a concrete beam body 1 and a steel structure hanging column body 2 located below the concrete beam body 1, and further including fixing frames 3 located on opposite sides of the concrete beam body 1. The fixing frames 3 are L-shaped, and a plurality of fixing bolts 4 with one end penetrating into the concrete beam body 1 are penetrated through each fixing frame 3. A bearing plate 5 in close contact with the lower side of the concrete beam body 1 is provided below the two fixing frames 3. The bearing plate 5 and the lower sides of the two fixing frames 3 are connected by bolts. A connecting seat 6 is fixedly connected to the lower side of the bearing plate 5. The upper end of the steel structure hanging column body 2 is fixedly installed on the lower part of the connecting seat 6 by bolts. It also includes a plurality of embedded threaded rods 7. The upper ends of the embedded threaded rods 7 are located in the concrete beam body 1, the lower ends of the embedded threaded rods 7 penetrate through the bearing plate 5, the upper ends of the embedded threaded rods 7 are hooked, and the ends of the fixing bolts 4 are welded to the sides of the embedded threaded rods 7.

[0030] The specific implementation mode in this embodiment: When it is necessary to pre-embed and install the steel structure hanging column body 2, the embedded threaded rods 7 and the fixing bolts 4 are pre-embedded inside the formwork of the concrete beam body 1 before the concrete of the concrete beam body 1 is poured. The fixing bolts 4 penetrate through the two side formworks of the concrete beam body 1, and the embedded threaded rods 7 penetrate through the lower side formwork of the concrete beam body 1. The embedded threaded rods 7, the fixing bolts 4 and the beam reinforcement in the concrete beam body 1 are welded to position the embedded threaded rods 7 and the fixing bolts 4. After the concrete of the concrete beam body 1 is poured and cured, the formwork is removed. The fixing frames 3 are sleeved on the sides of a plurality of fixing bolts 4 and are threadedly connected to the sides of the fixing bolts 4 by nuts to limit and fix the positions of the fixing frames 3. The bearing plate 5 is sleeved on the sides of a plurality of embedded threaded rods 7 and is threadedly connected to the lower side of the lower ends of the embedded threaded rods 7 by nuts to limit and fix the bearing plate 5. Subsequently, the bearing plate 5 and the fixing frames 3 are fixedly connected by bolts. The steel structure hanging column body 2 is installed on the lower part of the connecting seat 6 by bolts.

[0031] When it is necessary to install the steel structure hanging column body 2 later, determine the position where the fixing frame 3 is to be installed, and detect the position of the beam reinforcement inside the concrete beam body 1 through a detector. Avoid the position of the beam reinforcement, and fix the fixing bolts 4 on both sides of the concrete beam body 1 by using the existing technology of implanting anchor bolts. The fixing frame 3 is sleeved on the sides of several fixing bolts 4, and the fixing frame 3 is fixed by screwing nuts on the sides of the fixing bolts 4. The bearing plate 5 is installed on the lower sides of the two fixing frames 3 by bolts, and the steel structure hanging column body 2 is fixedly installed on the lower part of the connecting seat 6. Through the above settings, it can meet the installation requirements of both pre-embedding and later adding the steel structure hanging column body 2, and improve the application range of installing the steel structure hanging column body 2 under the concrete beam body 1.

[0032] Embodiment 2

[0033] Please refer to Figure 3 and Figure 4 This embodiment includes the above embodiment, and further includes: a plurality of first adjustment slots 8 are formed through the fixing frame 3. The first adjustment slots 8 are in the horizontal direction and are adapted to the fixing bolts 4. Through holes adapted to the first adjustment slots 8 are formed through both the side of the fixing frame 3 away from the concrete beam body 1 and the bearing plate 5. The first adjustment slots 8 and the through holes are in a cross shape. A plurality of third adjustment slots 10 are formed through the bearing plate 5. The third adjustment slots 10 and the through holes are in a cross shape.

[0034] The specific implementation method in this embodiment: The fixing frame 3 can be finely adjusted horizontally along the first adjustment slots 8 through the first adjustment slots 8. The bearing plate 5 can be finely adjusted horizontally along the through holes through the through holes. The bearing plate 5 can be finely adjusted horizontally along the third adjustment slots 10 through the third adjustment slots 10, and the through holes and the third adjustment slots 10 are in two directions perpendicular to the horizontal direction. After the fixing bolts 4 are pre-embedded or installed on site, if the steel structure hanging column body 2 is offset during later installation, the positions of the fixing frame 3 and the bearing plate 5 can be finely adjusted through the first adjustment slots 8, the through holes, and the third adjustment slots 10, improving the practicability of the overall connection node.

[0035] Embodiment 3

[0036] Please refer to Figures 2 - 5, this embodiment includes all the above embodiments, and further includes: a positioning plate 11 is sleeved between the sides of several embedded threaded rods 7, the number of positioning plates 11 is at least two, a first connecting plate 12 is fixedly connected to the upper end of the steel structure hanging column body 2, and a second connecting plate 13 adapted to the first connecting plate 12 is fixedly connected to the opposite sides of the connecting seat 6. A second reinforcing rib 16 is fixedly connected between the opposite sides of the first connecting plate 12 and the steel structure hanging column body 2. An installation opening 14 is formed through the opposite sides of the connecting seat 6, and a first reinforcing rib 15 is fixedly connected between the two sides of the fixing frame 3.

[0037] The specific implementation manner in this embodiment: When it is necessary to embed the fixing bolts 4 and the embedded threaded rods 7, first pass several embedded threaded rods 7 through more than two positioning plates 11, and weld the end of the fixing bolt 4 to the side of the embedded threaded rod 7 by welding. At the same time, weld the positioning plate 11, the fixing bolt 4 or the embedded threaded rod 7 to the beam reinforcement to improve the stability of the positions of the fixing bolt 4 and the embedded threaded rod 7 during embedding. The second connecting plate 13 and the first connecting plate 12 are connected by bolts to install the steel structure hanging column body 2. The installation opening 14 facilitates installing the nut on the lower side of the embedded threaded rod 7. The first reinforcing rib 15 improves the anti-deformation strength of the fixing frame 3, and the second reinforcing rib 16 improves the connection strength between the first connecting plate 12 and the steel structure hanging column body 2.

[0038] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cast-in-place connection joint between a steel structure hanging column and a concrete beam, comprising a concrete beam body (1) and a steel structure hanging column body (2) located below the concrete beam body (1), characterized in that, It further includes fixing brackets (3) located on opposite sides of the concrete beam body (1). The fixing brackets (3) are in an L shape, and a number of fixing bolts (4) with one end inserted into the concrete beam body (1) penetrate through each fixing bracket (3). A bearing plate (5) that is in close contact with the lower side of the concrete beam body (1) is provided below the two fixing brackets (3). The lower side of the bearing plate (5) and the lower sides of the two fixing brackets (3) are connected by bolts. A connecting seat (6) is fixedly connected to the lower side of the bearing plate (5). The upper end of the steel structure hanging column body (2) is fixedly installed on the lower part of the connecting seat (6) by bolts.

2. The cast-in-place connection node of a steel structure suspension column and a concrete beam according to claim 1, characterized in that, It further includes a number of embedded threaded rods (7). The upper ends of the embedded threaded rods (7) are located inside the concrete beam body (1). The lower ends of the embedded threaded rods (7) penetrate through the bearing plate (5). The upper ends of the embedded threaded rods (7) are in a hook shape. The ends of the fixing bolts (4) are welded to the sides of the embedded threaded rods (7).

3. The cast-in-place connection joint between a steel structure suspension column and a concrete beam according to claim 1, wherein A number of first adjustment slots (8) are penetrated and opened on the fixing brackets (3). The first adjustment slots (8) are in a horizontal direction and are adapted to the fixing bolts (4).

4. The cast-in-place connection node of a steel structure suspension column and a concrete beam according to claim 3, characterized in that, On the side of the fixing bracket (3) away from the concrete beam body (1) and on the bearing plate (5), matching second adjustment slots (9) are penetrated and opened. The first adjustment slots (8) and the second adjustment slots (9) are in a cross shape.

5. The cast-in-place connection node between a steel structure suspension column and a concrete beam according to claim 4, characterized in that, A number of third adjustment slots (10) are penetrated and opened on the bearing plate (5). The third adjustment slots (10) and the second adjustment slots (9) are in a cross shape.

6. The cast-in-place connection joint between a steel structure suspension column and a concrete beam according to claim 2, wherein, A positioning plate (11) is sleeved between the sides of the number of embedded threaded rods (7). The number of the positioning plates (11) is at least two.

7. The cast-in-place connection node of a steel structure suspension column and a concrete beam according to claim 1, characterized in that, A first connecting plate (12) is fixedly connected to the upper end of the steel structure hanging column body (2). Second connecting plates (13) adapted to the first connecting plate (12) are fixedly connected to the opposite sides of the connecting seat (6). A second reinforcing rib (16) is fixedly connected between the opposite sides of the first connecting plate (12) and the steel structure hanging column body (2).

8. The cast-in-place connection node between a steel structure suspension column and a concrete beam according to claim 1, characterized in that, Installation openings (14) are penetrated and opened on the opposite sides of the connecting seat (6). A first reinforcing rib (15) is fixedly connected between the two sides of the fixing bracket (3).

Images