Basement post-cast strip independent supporting system

Abstract

The utility model relates to a basement post-cast strip independent supporting system, which belongs to the technical field of post-cast strip construction, is matched with a full space supporting frame for use, and comprises a structural beam and a concrete column, wherein the structural beams are located on the two sides of the post-cast strip, and beam bottom holes are formed in the bottoms of the structural beams; the structural beam is formed by pouring a beam formwork, and an open hole is formed in the bottom of the beam formwork. Beam steel bars are arranged in the structural beam and are kept continuous at the post-cast strip; the concrete columns are arranged on the two sides of the post-cast strip and are formed by pouring column formworks; the open hole is matched with the column template; column steel bars are arranged in the concrete column, and the column steel bars and the beam steel bars are bound and overlapped. According to the basement post-cast strip independent supporting system, the concrete columns and the structural beams are integrally poured and formed, the column steel bars and the beam steel bars are bound and lapped, the structural strength is high, when the full-space supporting frame is dismantled, special attention is not needed to avoid collision of the concrete columns, the working pressure of constructors is reduced, and the dismantling efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of post-cast strip construction, in particular to an independent support system for a post-cast strip in a basement. Background Art

[0002] A post-cast joint refers to a concrete strip left at the corresponding positions of beams, slabs (foundation slabs) and walls in accordance with design or construction specifications during construction to prevent harmful cracks in cast-in-place reinforced concrete structures due to temperature changes, uneven shrinkage, uneven settlement or construction needs.

[0003] The traditional steel pipe scaffolding top support system requires strict control of each process such as the erection of the support system. In particular, the post-casting strip formwork system needs to be erected independently and cannot be dismantled or modified before the post-casting strip is closed. The process requires a lot of effort to manage.

[0004] In the prior art, Chinese invention patent application CN116856689A discloses a construction method for plain concrete column supports for post-cast strips of top slabs. This patent sets plain concrete column supports on both sides of the post-cast strip. When removing the formwork, the other formwork systems can be removed first. After the post-cast strip meets the pouring conditions, the plain concrete column supports can be removed. Although this patent provides an independent support system for the construction of the post-cast strip, the structural strength of plain concrete is not high. Due to the limitations of the plain concrete structural strength, when removing other formwork systems, care should be taken to avoid collision with the plain concrete columns. This will limit the demolition work space and affect the efficiency of the demolition operation.

[0005] Therefore, how to provide an independent support system for post-cast strips that does not affect construction efficiency is a technical problem that urgently needs to be solved. Utility Model Content

[0006] In response to the shortcomings of the existing technology, the utility model provides an independent support system for the basement post-cast strip, which is formed by integrally casting concrete columns and structural beams, and the column steel bars and beam steel bars are tied and overlapped. The structure has high strength, and there is no need to pay special attention to avoid collision with concrete columns when dismantling the full-floor support frame, which reduces the work pressure of construction workers and can improve the efficiency of demolition operations.

[0007] The utility model provides an independent support system for a basement post-cast zone, which is used in conjunction with a full-floor support frame and includes:

[0008] Structural beams are located on both sides of the post-casting strip, with openings at the bottom of the beams. The structural beams are cast using beam formwork, with openings at the bottom of the beam formwork. Steel bars are installed in the structural beams, and the steel bars remain continuous at the post-casting strip to enhance the integrity of the structure.

[0009] Concrete columns are arranged on both sides of the post-cast strip and cast through column formwork; the openings match the column formwork so that the concrete columns and structural beams are cast and formed as one piece; column steel bars are provided in the concrete columns, and the column steel bars are tied and overlapped with the beam steel bars.

[0010] This technical solution is formed by integrally casting concrete columns and structural beams, and the column reinforcement and beam reinforcement are tied and overlapped, resulting in high structural strength. When dismantling the full-floor support frame, there is no need to pay special attention to avoid collision with the concrete columns, which reduces the work pressure of construction workers and can improve the efficiency of the demolition operation.

[0011] In some embodiments, when the underlying layer of the post-cast strip construction work layer is a foundation, the foundation ground is provided with embedded rebar, which is tied and overlapped with the column reinforcement. When the underlying layer of the post-cast strip construction work layer is a floor slab, the floor slab reinforcement is overlapped with the column reinforcement using a bent anchor. This technical solution ensures a secure connection between the concrete column and the underlying structure by connecting the column reinforcement to the underlying embedded rebar or floor slab reinforcement, thereby improving the structural stability of the concrete column.

[0012] In some embodiments, the independent support system for the basement post-cast strip further includes steel pipes disposed between the column formwork and the full-floor support frame to reinforce the column formwork. This technical solution can enhance the stability of the column formwork and prevent deformation or displacement during concrete pouring.

[0013] In some embodiments, the column formwork is provided with vent holes. This technical solution prevents the bubbles generated during concrete pouring from being unable to be properly discharged, which may cause quality defects such as loose vibration and honeycombed surface.

[0014] In some embodiments, the column formwork is a PVC pipe formwork. This technical solution can reduce construction costs.

[0015] In some embodiments, a wire mesh is provided between the post-cast strip and the structural beam to prevent concrete from flowing into the post-cast strip. This technical solution can prevent concrete from flowing into the post-cast strip area, thereby ensuring the construction quality and structural integrity of the post-cast strip.

[0016] In some embodiments, reflective strips are attached to the surface of the concrete column. This technical solution can serve as a warning, reminding construction workers to avoid it, and further improve the safety management level of the construction site.

[0017] In some embodiments, the surface of the concrete column is painted with warning paint. This technical solution can serve as a warning, reminding construction workers to pay attention to avoid, and further improve the safety management level of the construction site.

[0018] Based on the above scheme, the independent support system for the basement post-cast joint in the embodiment of the utility model can enhance the integrity and stability of the structure by arranging beam reinforcement in the structural beam and maintaining continuity at the post-cast joint; a beam bottom opening is opened at the bottom of the structural beam and matches the column formwork of the concrete column, so that the concrete column and the structural beam can be cast as one piece, reducing the construction process and improving the construction efficiency; and, by casting the concrete column and the structural beam as one piece, the column reinforcement and the beam reinforcement are tied and overlapped, the structural strength is high, and there is no need to pay special attention to avoid collision with the concrete column when dismantling the full-floor support frame, which reduces the work pressure of the construction personnel and can improve the efficiency of the demolition operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of the independent support system for the post-cast zone of the basement of the utility model;

[0021] Figure 2 For the Figure 1 Cross-sectional view along line AA;

[0022] Figure 3 This is a structural diagram after the full-hall support frame is removed;

[0023] Figure 4 For the Figure 3 Cross-sectional view along line BB.

[0024] In the picture:

[0025] 1. Structural beam; 2. Beam reinforcement; 3. Beam bottom opening; 4. Column reinforcement; 5. Column formwork; 6. Full-floor support frame; 7. Steel pipe; 8. Embedded reinforcement; 9. Wire mesh; 10. Post-cast joint; 11. Concrete column; 12. Warning paint; 13. Cutting line. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "installation," "overlap," and "connection" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0029] like Figures 1-4 As shown, in one embodiment of the independent support system of the basement post-cast strip 10 of the present invention, the independent support system of the basement post-cast strip 10 is used in conjunction with the full-floor support frame 6, and includes a structural beam 1 and a concrete column 11; wherein, the structural beam 1 is located on both sides of the post-cast strip 10, and a beam bottom opening 3 is opened at the bottom of the structural beam 1; the structural beam 1 is cast by a beam formwork, and an opening is opened at the bottom of the beam formwork; a beam steel bar 2 is provided in the structural beam 1, and the beam steel bar 2 remains continuous at the post-cast strip 10 to enhance the integrity of the structure; the concrete column 11 is arranged on both sides of the post-cast strip 10, and is cast by the column formwork 5; the opening is matched with the column formwork 5, so that the concrete column 11 and the structural beam 1 are cast and formed as a whole; the concrete column 11 is provided with a column steel bar 4, and the column steel bar 4 is tied and overlapped with the beam steel bar 2.

[0030] In the above exemplary embodiment, the independent support system of the basement post-casting zone 10 is used in conjunction with the full-floor support frame 6. After the concrete column 11 is poured, when the concrete column 11 reaches the strength requirement, the full-floor support frame 6 can be removed first, and the construction of the post-casting zone 10 is supported only by the concrete column 11. When the concrete of the post-casting zone 10 reaches the design strength, Figure 4As shown, a cutting machine is used to cut and remove the concrete columns 11 along the cutting line 13. The independent support system of the basement post-cast strip 10 in this embodiment is capable of enhancing the integrity and stability of the structure by providing beam reinforcement 2 in the structural beam 1 and maintaining continuity at the post-cast strip 10; a beam bottom opening 3 is provided at the bottom of the structural beam 1, which matches the column formwork 5 of the concrete column 11, so that the concrete column 11 and the structural beam 1 can be cast as one piece, reducing the construction process and improving the construction efficiency; and, by casting the concrete column 11 and the structural beam 1 as one piece, the column reinforcement 4 and the beam reinforcement 2 are tied and overlapped, the structural strength is high, and when removing the full-floor support frame 6, there is no need to pay special attention to avoid collision with the concrete column 11, which reduces the work pressure of the construction workers and can improve the efficiency of the demolition operation.

[0031] In some embodiments, as Figure 1 As shown, when the lower layer of the post-cast strip 10 construction work layer is the foundation, the foundation ground is provided with embedded steel bars 8, which are tied and overlapped with the column reinforcement bars 4; when the lower layer of the post-cast strip 10 construction work layer is a floor slab, the floor slab reinforcement bars are overlapped with the column reinforcement bars 4 by bending and anchoring. The connection between the column reinforcement bars 4 and the lower embedded steel bars 8 or the floor slab reinforcement ensures a firm connection between the concrete column 11 and the lower structure, thereby improving the structural stability of the concrete column 11. It should be noted that when the lower layer of the construction work layer is a floor slab, overlapping reinforcement bars need to be reserved to overlap with the column reinforcement bars 4.

[0032] Furthermore, if Figure 2 As shown, the independent support system of the basement post-cast strip 10 further includes a steel pipe 7, which is arranged between the column formwork 5 and the full-floor support frame 6 to reinforce the column formwork 5. By arranging the steel pipe 7 between the column formwork 5 and the full-floor support frame 6 to reinforce the column formwork 5, the stability of the column formwork 5 can be enhanced, and the column formwork 5 can be prevented from deformation or displacement during the concrete pouring process, thereby ensuring construction quality.

[0033] In some embodiments, the column formwork 5 is provided with vent holes. It should be noted that the vent holes are provided at intervals. The provision of the vent holes prevents the inability to properly discharge bubbles generated during concrete pouring, which can lead to quality defects such as loose vibration and honeycombed surfaces.

[0034] In some embodiments, the column formwork 5 is a PVC pipe formwork. Using a PVC pipe formwork as the column formwork 5 has the advantages of being light in weight, easy to install and disassemble, and also having good corrosion resistance and reusability, thereby reducing construction costs.

[0035] In some embodiments, as Figure 1As shown, a steel mesh 9 is provided between the post-cast strip 10 and the structural beam 1 to prevent concrete from flowing into the post-cast strip 10. By providing the steel mesh 9 between the post-cast strip 10 and the structural beam 1, concrete is prevented from flowing into the post-cast strip 10 area, thereby ensuring the construction quality and structural integrity of the post-cast strip 10.

[0036] In some embodiments, reflective strips are attached to the surface of the concrete column 11. The reflective strips serve as a warning to remind construction workers to avoid them, thereby further improving the safety management level of the construction site.

[0037] In some embodiments, as Figure 3 As shown, the surface of the concrete column 11 is painted with warning paint 12. The warning paint 12 plays a warning role, reminding construction workers to pay attention to avoid, further improving the safety management level of the construction site.

[0038] The following combination Figures 1-4 The construction process of an embodiment of the independent support system of the basement post-cast zone 10 of the present invention is described below:

[0039] During on-site construction, the full-floor support frame 6 is first erected according to the construction plan. At this time, in order to ensure the integrity and continuity of the frame, the full-floor support frame 6 is not disconnected at the post-casting strip 10, and no independent support is required. After the full-floor support frame 6 is erected, the beam formwork and column formwork 5 are supported. When supporting the beam formwork, a hole needs to be opened at the bottom of the beam formwork. A special hole opener is used according to the positioning line on the beam formwork. The size of the beam bottom opening 3 matches the column formwork 5. After the beam formwork and column formwork 5 are supported, the beam reinforcement 2 and the column reinforcement 4 are tied. The beam reinforcement 2 is not disconnected at the post-casting strip 10 to ensure the integrity and safety of the later structure. When the lower layer of the post-cast strip 10 construction working layer is the foundation, the foundation ground is provided with embedded steel bars 8, and the embedded steel bars 8 are tied and overlapped with the column steel bars 4; when the lower layer of the post-cast strip 10 construction working layer is the floor slab, the floor slab steel bars are overlapped with the column steel bars 4 by bending and anchoring, that is, it is necessary to reserve overlapping steel bars in advance when constructing the lower floor slab of the construction working layer; at the same time, the column steel bars 4 are extended into the structural beam 1 and overlapped with the beam steel bars 2 by anchoring. The anchoring connection of the upper and lower ends of the steel bars realizes the connection of the concrete column 11 with the structure as a whole, ensuring its later stress stability and safety and reliability. Before pouring concrete, a wire mesh 9 is set at the post-cast strip 10 to intercept the concrete and prevent the concrete from flowing into the post-cast strip 10. After pouring is completed, when the concrete strength of the structural beam 1 reaches 100% of the design strength, the full-floor support frame 6 at this position can be removed, and only the concrete column 11 is used for support, and reflective strips are pasted on the concrete column 11 or warning paint 12 is applied to the concrete column 11 to serve as a warning during construction to avoid collision disturbance. After the concrete pouring of the post-casting zone 10 is completed and reaches the designed strength, the concrete columns 11 are cut and removed along the cutting line 13 using a cutting machine. Before removal, the horizontal column formwork 5 is numbered in the order of removal to achieve symmetrical and synchronous removal. After the removal is completed, the bottom surface of the structural beam 1 is trimmed and leveled with anti-crack mortar.

[0040] Through the description of multiple embodiments of the independent support system for the post-cast basement strip 10 of the present invention, it can be seen that the independent support system for the post-cast basement strip 10 of the present invention has at least one or more of the following advantages:

[0041] 1. The independent support system of the basement post-cast strip 10 provided by the present invention can enhance the integrity and stability of the structure by providing beam reinforcement 2 in the structural beam 1 and maintaining continuity at the post-cast strip 10;

[0042] 2. The utility model provides an independent support system for the basement post-cast strip 10. The bottom of the structural beam 1 is provided with a beam bottom opening 3, which matches the column formwork 5 of the concrete column 11, so that the concrete column 11 and the structural beam 1 can be cast and formed as a whole, reducing the construction process and improving the construction efficiency.

[0043] 3. The independent support system of the basement post-cast strip 10 provided by the utility model is formed by integrally casting the concrete column 11 and the structural beam 1, and the column steel bars 4 and the beam steel bars 2 are tied and overlapped. The structural strength is high, and there is no need to pay special attention to avoid collision with the concrete column 11 when dismantling the full-floor support frame 6, which reduces the work pressure of the construction workers and can improve the efficiency of the demolition operation.

[0044] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0045] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention. They should all be included in the scope of the technical solution for which protection is requested in the present invention.

Claims

1. An independent support system for post-cast strips in a basement, used in conjunction with a full-floor support frame, characterized in that: include: Structural beams are located on both sides of the post-casting strip, with a beam bottom opening at the bottom of the structural beam; the structural beams are cast using a beam formwork, with an opening at the bottom of the beam formwork; beam reinforcement is provided within the structural beam, and the beam reinforcement remains continuous at the post-casting strip to enhance the integrity of the structure; Concrete columns are arranged on both sides of the post-cast strip and are cast through column formwork; the openings match the column formwork so that the concrete columns and the structural beams are cast as one piece; column steel bars are provided in the concrete columns, and the column steel bars are tied and overlapped with the beam steel bars.

2. The independent support system for post-cast zone of basement according to claim 1, characterized in that: When the lower layer of the post-cast strip construction working layer is the foundation, the foundation ground is provided with embedded steel bars, and the embedded steel bars are tied and overlapped with the column steel bars; when the lower layer of the post-cast strip construction working layer is the floor slab, the floor slab steel bars are bent and anchored and overlapped with the column steel bars.

3. The independent support system for post-cast zone of basement according to claim 1, characterized in that: It also includes a steel pipe, which is arranged between the column formwork and the full-floor support frame to reinforce the column formwork.

4. The independent support system for post-cast zone of basement according to claim 1, characterized in that: The column template is provided with an exhaust hole.

5. The independent support system for post-cast zone of basement according to claim 1, characterized in that: The column template is a PVC pipe template.

6. The basement post-cast zone independent support system according to claim 1, characterized in that: A steel mesh is provided between the post-cast strip and the structural beam, and the steel mesh is used to prevent concrete from flowing into the post-cast strip.

7. The basement post-cast zone independent support system according to claim 1, characterized in that: Reflective strips are pasted on the surface of the concrete column.

8. The independent support system for post-cast zone of basement according to claim 1, characterized in that: The surface of the concrete column is painted with warning paint.

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