A unitary integrated column formwork structure for cast-in-situ construction of building vertical members

By using a combination of aluminum alloy formwork and modular support frames in prefabricated buildings, the problem of complex support systems in the cast-in-place construction of vertical components is solved, enabling construction without external support, improving efficiency and safety, and reducing costs.

CN224413117UActive Publication Date: 2026-06-26SHAANXI CONSTR ENG GRP CO LTD THE FIRST BUILDING +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI CONSTR ENG GRP CO LTD THE FIRST BUILDING
Filing Date
2025-09-24
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In prefabricated buildings, the cast-in-place construction of vertical components requires a complex temporary support system, which leads to low construction efficiency, many safety hazards, low material turnover rate and poor coordination with prefabricated components.

Method used

The internal aluminum alloy template and modular support frame are used, combined with tie rods, square steel back ribs and diagonal braces to form a unit-integrated column formwork structure, eliminating the need for external scaffolding support and realizing the rigidity of the template module itself as temporary support.

Benefits of technology

It improved construction efficiency by 50%, reduced labor intensity and material consumption, ensured the dimensional accuracy and surface flatness of cast-in-place columns, enhanced construction safety and overall stability, and saved costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to building construction technical field, and disclose a unit formula integrated column module structure for building vertical component cast-in-place construction, including internal aluminium alloy form, the four around of aluminium alloy form all are covered with modular support frame, both sides of modular support frame all are fixedly connected with the connecting lug board symmetrically, the connecting lug board is set up in the interval from top to bottom, and the modular support frame is connected and fixed with the modular support frame of adjacent side through the connecting lug board, the front side of modular support frame all is provided with the pull -in screw rod, square steel back ridge and inclined support, and the pull -in screw rod and square steel back ridge are set up on the modular support frame in the alternate interval, and one end of inclined support is rotatably connected with structure board surface, and the other end is rotatably connected with modular support frame. The utility model discloses an integrated design to make the template module have enough rigidity and strength, can be used as the temporary support of subsequent procedure such as masonry wall after assembling and forming, realizes exempting from external support construction, and greatly improves construction efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, specifically a unit-type integrated column formwork structure for cast-in-place construction of vertical building components. Background Technology

[0002] In prefabricated construction, the cast-in-place construction of vertical components (such as columns) typically requires the erection of complex temporary support systems to secure the formwork. This not only consumes a large amount of labor and materials but also suffers from low construction efficiency and numerous safety hazards. Traditional formwork construction has the following drawbacks:

[0003] 1. Complex support system: A large amount of steel pipe scaffolding needs to be erected as temporary support for the formwork. Installation and dismantling are time-consuming and labor-intensive, and occupy a large area.

[0004] 2. Construction accuracy is difficult to guarantee: The cumulative error of the multi-layer support system is large, which can easily lead to deviations in the verticality and flatness of the column;

[0005] 3. Low material turnover rate: Traditional wooden or steel formwork requires thorough cleaning after dismantling, resulting in high losses and limited reuse.

[0006] 4. Poor coordination with precast components: In prefabricated structures, the connection nodes between cast-in-place columns and precast beams and slabs are complex, and the traditional formwork system lacks adaptability and integrity. Utility Model Content

[0007] To address the problems mentioned in the background art, this utility model provides a unitized integrated column formwork structure for cast-in-place construction of vertical building components. Through integrated design, the formwork modules have sufficient rigidity and strength, and after assembly, they can serve as temporary supports for subsequent processes such as masonry walls, achieving construction without external supports and greatly improving construction efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A unit-type integrated column formwork structure for cast-in-place construction of vertical building components includes an internal aluminum alloy formwork. Each side of the aluminum alloy formwork is covered with a modular support frame. Multiple sets of connecting ear plates are symmetrically fixed to both sides of each modular support frame. The multiple sets of connecting ear plates are arranged at vertical intervals. The modular support frame on each side is connected and fixed to the modular support frame on the adjacent side through the connecting ear plates.

[0010] The front side of each modular support frame is provided with multiple sets of tie rods, multiple square steel back ribs and diagonal supports. The tie rods and square steel back ribs are arranged alternately on the modular support frame. One end of the diagonal support is rotatably connected to the structural plate surface and the other end is rotatably connected to the modular support frame.

[0011] Each modular support frame on each side is composed of multiple sets of top components, multiple sets of upper components, multiple sets of middle components, multiple sets of bottom components, and multiple adjustable top supports. The bottom components are fixed to the structural plate by limiting bolts. The middle components are tenoned and mortised into the top of the bottom components. The upper components are tenoned and mortised into the top of the middle components. The top components are tenoned and mortised into the top of the upper components. The adjustable top supports are vertically and vertically inserted into the top of the top components.

[0012] Preferably, each set of pull screws consists of two pull lugs and a threaded rod, with the two pull lugs slidably threaded to both ends of the threaded rod.

[0013] Preferably, the connecting lugs on each side of the modular support frame are fixedly connected to the connecting lugs on the adjacent side of the modular support frame by steel pins.

[0014] Preferably, each bottom component consists of a fixed base, two hollow bottom steel sections, and multiple bottom connecting beams. The fixed base is fixedly connected to the structural plate by limiting bolts. The two hollow bottom steel sections are symmetrically fixedly connected to the top two sides of the fixed base. The multiple bottom connecting beams are connected vertically between the hollow bottom steel sections on both sides.

[0015] Preferably, each of the central components is composed of two central hollow steel sections and multiple central connecting beams. The two central hollow steel sections are respectively inserted into the top of two bottom hollow steel sections, and the multiple central connecting beams are connected between the two central hollow steel sections at vertical intervals.

[0016] Preferably, each set of upper components is composed of two upper hollow steel sections and multiple upper connecting beams. The two upper hollow steel sections are respectively inserted into the top of the two middle hollow steel sections, and the multiple upper connecting beams are connected between the two upper hollow steel sections at intervals.

[0017] Preferably, each set of top components is composed of a top hollow steel section, a top support, and multiple top connecting beams. The top hollow steel section is inserted into the top of one of the upper hollow steel sections, the top support is suspended above the top of the other upper hollow steel section, and the multiple top connecting beams are connected between the top hollow steel section and the top support at vertical intervals.

[0018] The top of the top support is provided with a threaded hole that extends to the bottom, and the adjustable top support can be raised and lowered to the top of the top component through the threaded hole.

[0019] Preferably, the front sides of the bottom hollow steel, the middle hollow steel, and the upper hollow steel are symmetrically fixedly connected with back rib hooks, and the square steel back ribs are engaged in the back rib hooks.

[0020] Preferably, each of the bottom connecting beam, middle connecting beam and upper connecting beam has a threaded hole on its front side for connecting a pull plate, and the pull plate is fixedly connected to the bottom connecting beam by connecting bolts passing through the threaded hole.

[0021] Preferably, the inclined support includes a fixed hinge seat, a first support rod, and a second support rod. The fixed hinge seat is fixedly connected to the structural plate surface. One end of each of the first and second support rods is rotatably connected to the fixed hinge seat, and the other end is connected to the modular support frame through the connecting hinge seat.

[0022] The length of the first support rod is greater than the length of the second support rod. The first and second support rods are connected to the modular support frame to form a triangular structure.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1. This utility model provides a unitized integrated column formwork structure for cast-in-place construction of vertical building components. By adopting a combination design of internal aluminum alloy formwork, modular support frame, connecting ear plate, tie rod, square steel back rib and diagonal support, an integrated design is formed after assembly. This allows the rigidity of the formwork module itself to be utilized, eliminating a large amount of external scaffolding support, saving more than 70% of support materials, shortening the construction period, and serving as temporary support for subsequent processes such as masonry walls, thus achieving construction without external support.

[0025] 2. This utility model provides a unitized integrated column formwork structure for cast-in-place construction of vertical building components. By adopting a modular design and connecting through standard interfaces, the installation and disassembly efficiency is increased by more than 50%, and the labor intensity is significantly reduced. The modules have high processing precision and tight joints, ensuring the dimensional accuracy and surface flatness of the cast-in-place columns, and the verticality deviation can be controlled within H / 1000. The overall stability is good, avoiding the risk of instability of traditional support systems, and the construction safety is significantly improved. The cost is lower than that of traditional wooden formwork systems, and a lot of labor and machinery shifts are saved. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the unit-type integrated column formwork assembly structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the top component structure of the unit-type integrated column mold of this utility model;

[0028] Figure 3 This is a schematic diagram of the upper component structure of the unit-type integrated column mold of this utility model;

[0029] Figure 4This is a schematic diagram of the central component structure of the unit-type integrated column mold of this utility model;

[0030] Figure 5 This is a schematic diagram of the bottom component structure of the unit-type integrated column mold of this utility model.

[0031] Marked in the diagram: 1. Top component; 11. Top hollow steel section; 12. Top support; 13. Top connecting beam;

[0032] 2. Upper components; 21. Upper hollow steel section; 22. Upper connecting beam;

[0033] 3. Middle component; 31. Middle hollow steel section; 32. Middle connecting beam;

[0034] 4. Bottom assembly; 41. Fixing base; 42. Bottom hollow steel section; 43. Bottom connecting beam;

[0035] 5. Pull screw; 51. Pull lug; 52. Threaded rod;

[0036] 6. Square steel back rib; 7. Adjustable top support; 8. Connecting ear plate; 9. Steel pin; 10. Back rib hook; 15. Structural panel; 16. Limit bolt; 17. Aluminum alloy formwork;

[0037] 14. Diagonal support; 1401. Fixed hinge seat; 1402. First support rod; 1403. Second support rod; 1404. Connecting hinge seat. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] like Figures 1 to 5 As shown, a unitized integrated column formwork structure for cast-in-place construction of vertical building components includes an internal aluminum alloy formwork 17. The inner side of the internal aluminum alloy formwork 17 has pre-embedded parts or reserved holes for connection with precast beams, floor slabs, and other components, ensuring accurate node connections. Each side of the aluminum alloy formwork 17 is covered with a modular support frame. Multiple sets of connecting ear plates 8 are symmetrically fixed to both sides of each modular support frame. These connecting ear plates 8 are spaced vertically, and each modular support frame on one side is connected and fixed to the adjacent modular support frame via the connecting ear plates 8.

[0040] Each side of the modular support frame is provided with multiple sets of tie rods 5, multiple square steel back ribs 6 and diagonal supports 14 on the front side. The tie rods 5 and square steel back ribs 6 are arranged alternately on the modular support frame. One end of the diagonal support 14 is rotatably connected to the structural plate 15 and the other end is rotatably connected to the modular support frame.

[0041] Each side of the modular support frame is composed of multiple sets of top components 1, multiple sets of upper components 2, multiple sets of middle components 3, multiple sets of bottom components 4, and multiple adjustable top supports 7. The bottom components 4 are fixed to the structural plate 15 by limiting bolts 16. The middle components 3 are tenoned and inserted into the top of the bottom components 4. The upper components 2 are tenoned and inserted into the top of the middle components 3. The top components 1 are tenoned and inserted into the top of the upper components 2. The adjustable top supports 7 can be raised and lowered and inserted into the top of the top components 1.

[0042] It should be noted that this application adopts modular components. The core load-bearing structure of the components uses cold-formed rectangular hollow steel to be nested and welded into mortise and tenon joint columns. The mortise and tenon joints of each component form a continuous force transmission structure. The height of the top component 1 and the bottom component 4 is fixed, while the height of the upper component 2 and the middle component 3 is determined according to the 3M module of the building to adapt to different floor height requirements. Steel reinforcing connecting ear plates 8 are welded to the sides of the hollow steel. The connecting ear plates 8 are provided with steel pin connection holes to realize rapid and accurate assembly and locking between modules. Steel back rib hooks 10 and tie bolt ear plates 51 are welded to the hollow steel. Horizontally adjacent components are adapted to different cast-in-place column sections through square steel back ribs 6 and tie rods 5. The top component 1 is equipped with an adjustable top support 7, which can be finely adjusted to adapt to the precast beam elevation through support. The bottom component 4 uses limit bolts 16 to fix the outer frame to the structural plate surface to prevent template displacement. Adjustable diagonal supports further enhance the anti-overturning capacity of the external frame under pressure.

[0043] In one embodiment, each set of tie rods 5 consists of two tie lugs 51 and a threaded rod 52. The two tie lugs 51 are slidably threaded to both ends of the threaded rod 52. By setting the tie rods 5 as adjustable tie rods 5, it is convenient to make corresponding adjustments according to the on-site construction requirements.

[0044] In one embodiment, each of the bottom connecting beam 43, the middle connecting beam 32, and the upper connecting beam 22 has a threaded hole on its front side for connecting the pull tab 51. The pull tab 51 is fixedly connected to the bottom connecting beam 43 by connecting bolts passing through the threaded holes.

[0045] In one embodiment, the connecting lug 8 on each side of the modular support frame is fixedly connected to the connecting lug 8 on the adjacent side of the modular support frame by steel pins 9. By adopting the connection method of connecting lug 8 and steel pins 9, the modular support frame can be easily and quickly assembled and disassembled, which greatly improves the construction efficiency.

[0046] In one embodiment, each set of bottom components 4 is composed of a fixed base 41, two bottom hollow steel sections 42 and multiple bottom connecting beams 43. The fixed base 41 is fixedly connected to the structural plate 15 by limiting bolts 16. The two bottom hollow steel sections 42 are symmetrically fixedly connected to the top two sides of the fixed base 41. The multiple bottom connecting beams 43 are connected vertically between the bottom hollow steel sections 42 on both sides.

[0047] In one embodiment, each group of central components 3 is composed of two central hollow steel sections 31 and a plurality of central connecting beams 32. The two central hollow steel sections 31 are respectively inserted into the top of two bottom hollow steel sections 42, and the plurality of central connecting beams 32 are connected between the two central hollow steel sections 31 at intervals.

[0048] In one embodiment, each set of upper components 2 is composed of two upper hollow steel sections 21 and multiple upper connecting beams 22. The two upper hollow steel sections 21 are respectively inserted into the top of two middle hollow steel sections 31, and the multiple upper connecting beams 22 are connected between the two upper hollow steel sections 21 at intervals.

[0049] In one embodiment, each set of top components 1 is composed of a top hollow steel section 11, a top support 12, and a plurality of top connecting beams 13. The top hollow steel section 11 is inserted into one of the tops of the upper hollow steel section 21, the top support 12 is suspended above the top of the other upper hollow steel section 21, and the plurality of top connecting beams 13 are connected between the top hollow steel section 11 and the top support 12 at vertical intervals.

[0050] The top of the top support 12 has a threaded hole that extends to the bottom. The adjustable top support 7 can be raised and lowered to the top of the top component 1 through the threaded hole. This design allows for fine adjustment of the adjustable top support 7 to adapt to the elevation of the precast beam.

[0051] In one embodiment, the front sides of the bottom hollow steel 42, the middle hollow steel 31, and the upper hollow steel 21 are symmetrically fixedly connected with back rib hooks 10, and the square steel back ribs 6 are engaged in the back rib hooks 10. Through this structure, the stability and safety of the modular support frame can be greatly improved.

[0052] In one embodiment, the inclined support 14 includes a fixed hinge seat 1401, a first support rod 1402, and a second support rod 1403. The fixed hinge seat 1401 is fixedly connected to the structural plate surface 15. One end of each of the first support rod 1402 and the second support rod 1403 is rotatably connected to the fixed hinge seat 1401, and the other end is connected to the modular support frame via a connecting hinge seat 1404. The length of the first support rod 1402 is greater than the length of the second support rod 1403. The first support rod 1402 and the second support rod 1403 are connected to the modular support frame to form a triangular structure. By setting the inclined support 14, the stability of the modular support frame can be greatly improved.

[0053] The unit modules of this application can be assembled into an integral column form on site. After being hoisted into place, they can be leveled and straightened by the adjustable fixing seat 41, and their own rigidity can be maintained to ensure stability. They can be used as temporary supports for masonry and other operations. After the connecting bolts are loosened, the modules can be removed individually with a low damage rate. After cleaning and maintenance, they can be reused.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A unitized integrated column formwork structure for cast-in-place construction of vertical building components, characterized in that: It includes an internal aluminum alloy template (17), and each side of the aluminum alloy template (17) is covered with a modular support frame. Each side of the modular support frame is symmetrically fixed with multiple sets of connecting ear plates (8). The multiple sets of connecting ear plates (8) are arranged at intervals between the upper and lower sides. The modular support frame on each side is connected and fixed to the modular support frame on the adjacent side through the connecting ear plates (8). Each side of the modular support frame is provided with multiple sets of tie rods (5), multiple square steel back ribs (6) and diagonal supports (14) on the front side. The tie rods (5) and square steel back ribs (6) are arranged alternately on the modular support frame. One end of the diagonal support (14) is rotatably connected to the structural plate (15), and the other end is rotatably connected to the modular support frame. Each of the modular support frames on each side is composed of multiple sets of top components (1), multiple sets of upper components (2), multiple sets of middle components (3), multiple sets of bottom components (4) and multiple adjustable top supports (7); the bottom components (4) are fixed to the structural plate (15) by limiting bolts (16), the middle components (3) are tenoned and inserted into the top of the bottom components (4), the upper components (2) are tenoned and inserted into the top of the middle components (3), the top components (1) are tenoned and inserted into the top of the upper components (2), and the adjustable top supports (7) can be raised and lowered and inserted into the top of the top components (1).

2. The unit-type integrated column formwork structure for cast-in-place construction of vertical building components according to claim 1, characterized in that: Each set of the pull screws (5) consists of two pull lugs (51) and a threaded rod (52), with the two pull lugs (51) being slidably threaded to both ends of the threaded rod (52).

3. The unit-type integrated column formwork structure for cast-in-place construction of vertical building components according to claim 1, characterized in that: The connecting lugs (8) on each side of the modular support frame are fixedly connected to the connecting lugs (8) on the adjacent side of the modular support frame by steel pins (9).

4. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 2, characterized in that: Each bottom component (4) is composed of a fixed seat (41), two bottom hollow steel sections (42) and multiple bottom connecting beams (43). The fixed seat (41) is fixedly connected to the structural plate (15) by limiting bolts (16). The two bottom hollow steel sections (42) are symmetrically fixedly connected to the top two sides of the fixed seat (41). The multiple bottom connecting beams (43) are connected vertically between the bottom hollow steel sections (42) on both sides.

5. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 4, characterized in that: Each of the central components (3) is composed of two central hollow steel sections (31) and multiple central connecting beams (32). The two central hollow steel sections (31) are respectively inserted into the top of the two bottom hollow steel sections (42), and the multiple central connecting beams (32) are connected between the two central hollow steel sections (31) at intervals.

6. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 5, characterized in that: Each set of upper components (2) is composed of two upper hollow steel sections (21) and multiple upper connecting beams (22). The two upper hollow steel sections (21) are respectively inserted into the top of the two middle hollow steel sections (31), and the multiple upper connecting beams (22) are connected between the two upper hollow steel sections (21) at intervals.

7. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 6, characterized in that: Each of the top components (1) is composed of a top hollow steel section (11), a top support (12) and multiple top connecting beams (13). The top hollow steel section (11) is inserted into one of the tops of the upper hollow steel section (21), and the top support (12) is suspended above the top of the other upper hollow steel section (21). The multiple top connecting beams (13) are connected between the top hollow steel section (11) and the top support (12) at intervals. The top of the top support (12) is provided with a top support connecting threaded hole that extends to the bottom. The adjustable top support (7) can be raised and lowered to the top of the top component (1) through the top support connecting threaded hole.

8. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 7, characterized in that: The front sides of the bottom hollow steel (42), the middle hollow steel (31), and the upper hollow steel (21) are symmetrically fixed with back rib hooks (10), and the square steel back rib (6) is locked in the back rib hooks (10).

9. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 7, characterized in that: Each of the bottom connecting beam (43), middle connecting beam (32), and upper connecting beam (22) has a threaded hole on its front side for connecting a pull plate (51). The pull plate (51) is fixedly connected to the bottom connecting beam (43) by connecting bolts passing through the threaded hole.

10. A unitized integrated column formwork structure for cast-in-place construction of vertical building components according to claim 1, characterized in that: The inclined support (14) includes a fixed hinge seat (1401), a first support rod (1402), and a second support rod (1403). The fixed hinge seat (1401) is fixedly connected to the structural plate (15). One end of the first support rod (1402) and the second support rod (1403) are rotatably connected to the fixed hinge seat (1401), and the other end is connected to the modular support frame through the connecting hinge seat (1404). The length of the first support rod (1402) is greater than the length of the second support rod (1403). The first support rod (1402) and the second support rod (1403) are connected to the modular support frame to form a triangular structure.