Formwork reinforcing device for joint of top of concrete cylinder and beam
By designing a beam side formwork reinforcement mechanism and a cylindrical formwork reinforcement component, the problem of difficulty in reinforcing the formwork at the junction of the top of the concrete cylindrical column and the beam was solved, achieving effective reinforcement in a confined space and ensuring the appearance quality of the concrete.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-04-03
AI Technical Summary
The formwork at the junction of the top of the concrete column and the beam is difficult to reinforce effectively in a confined space, which makes the formwork prone to deformation during concrete pouring and affects the appearance quality.
The beam side formwork reinforcement mechanism and the cylindrical formwork reinforcement components are adopted, including main ribs, secondary ribs, tie rod assemblies, adapters, struts, locking nuts, clamps and support bars. By connecting the tie rod assemblies and adjusting the struts, back support force is provided to the cylindrical formwork to achieve effective reinforcement.
In a confined space, the formwork at the junction of the top of the concrete column and the beam was effectively reinforced, preventing formwork deformation and ensuring the appearance quality of the concrete.
Smart Images

Figure CN224078674U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to formwork construction in buildings, specifically to a formwork reinforcement device at the junction of the top of a concrete column and a beam. Background Technology
[0002] With the diversification of architectural designs, the application of concrete columns is increasing. Currently, during the formwork construction of concrete columns, the formwork is typically secured with steel clamps and reinforced with support rods around the column. However, due to the small angle between the top of the concrete column and the beam, it is impossible to install support rods for reinforcement at this point. Consequently, the formwork at this location is not reinforced and is relatively weak. During the concrete pouring process, due to the self-weight of the concrete, the impact force generated by vibration, and the lateral pressure of the formwork, the formwork at this location is prone to bulging, leading to dimensional deformation, irregular shape, and affecting the appearance quality of the concrete. Utility Model Content
[0003] The purpose of this utility model is to provide a formwork reinforcement device at the junction of the top of a concrete column and a beam. This device can provide back support for the column formwork in a confined space, thus effectively reinforcing the formwork at the junction of the top of the concrete column and the beam.
[0004] The technical solution adopted in this utility model is:
[0005] A formwork reinforcement device for the connection between the top of a concrete cylindrical column and a beam includes beam side formwork, cylindrical formwork, beam side formwork reinforcement mechanism, and cylindrical formwork reinforcement mechanism. The beam side formwork is installed on both sides of the beam at two locations on the top of the cylindrical column, and the cylindrical formwork is installed on the top of the column between the two beams. The beam side formwork reinforcement mechanism is used to reinforce the beam side formwork on both sides of the same beam, and includes main ribs, secondary ribs, and a tie rod assembly. The main ribs and secondary ribs are sequentially laid on the outside of the beam side formwork, and the tie rod assembly passes through the beam side formwork on both sides, with its two ends respectively pulling and pressing against the secondary ribs on both sides. The reinforcement assembly is used to reinforce the cylindrical formwork. It is located between two beams at the top of the cylindrical formwork and includes a connector, a tie rod assembly II, a strut, a locking nut, a retainer, and a support bar. The two ends of the connector rest on the secondary ribs of the side formwork of the two beams, and the middle faces the cylindrical formwork. The tie rod assembly II passes through the side formwork of the beams on both sides of the same beam and its two ends are respectively pulled and pressed against the end of the connector and the secondary rib. The strut passes through the middle of the connector and is adjusted in length against the connector by the locking nut. The retainer is located at one end of the strut, and the support bar is vertical and located inside the retainer. The retainer holds the support bar against the outside of the cylindrical formwork.
[0006] Preferably, the main beams are made of timber, and the secondary beams are made of round pipes.
[0007] Preferably, the tie rod assembly adopts a mountain-shaped locking element.
[0008] Preferably, the adapter is made of a zigzag-shaped metal square tube or metal strip.
[0009] Preferably, two adapters are arranged as a group, with the pull screw assembly passing through the two adapters in the same group, and the strut passing through the two adapters in the same group.
[0010] Preferably, the second tie rod assembly adopts a plate-shaped locking element.
[0011] Preferably, the support strips are made of timber.
[0012] The beneficial effects of this utility model are:
[0013] The beam side formwork reinforcement mechanism in this device can reinforce the beam side formwork and provide an installation platform for the adapter. The adapter provides back support for the struts, brackets and struts, so it can provide back support for the cylindrical formwork in a confined space, thus effectively reinforcing the formwork at the junction of the top of the concrete cylindrical column and the beam. Attached Figure Description
[0014] Figure 1 This is a top view of the formwork reinforcement device at the junction of the top of the concrete column and the beam.
[0015] Figure 2 This is a front view of the adapter being installed on the beam side formwork reinforcement mechanism.
[0016] In the diagram: 1-Cylindrical formwork; 2-Support bar; 3-Card holder; 4-Support rod; 5-Locking nut; 6-Adapter; 7-Tie rod assembly two; 8-Secondary rib; 9-Tie rod assembly one; 10-Beam side formwork; 11-Main rib. Detailed Implementation
[0017] The present application will be further described below with reference to the accompanying drawings and embodiments.
[0018] This application discloses a formwork reinforcement device at the junction of the top of a concrete cylinder and a beam, such as... Figure 1 and Figure 2 As shown, it includes:
[0019] Beam side formwork 10 is installed on both sides of the beam at the top of the cylindrical column, as shown in the image. Figure 1 ;
[0020] Cylindrical formwork 1, located at the top of the cylindrical column and between two beams, see... Figure 1 ;
[0021] A beam side formwork reinforcement mechanism is used to reinforce the beam side formwork 10 on both sides of the same beam. It includes a main rib 11, secondary ribs 8, and a tie rod assembly 9. The main rib 11 and secondary ribs 8 are laid sequentially on the outside of the beam side formwork 10. The tie rod assembly 9 passes through the beam side formwork 10 on both sides and its two ends are respectively pulled and pressed against the secondary ribs 8 on both sides. (See...) Figure 1 and Figure 2 ;
[0022] A cylindrical formwork reinforcement assembly, used to reinforce the cylindrical formwork 1, is located between two beams at the top of the cylindrical formwork. It includes a connector 6, a tie rod assembly 7, a strut 4, a locking nut 5, a retainer 3, and a support bar 2. The two ends of the connector 6 rest on the secondary ribs 8 of the side formwork 10 of the two beams, with the middle facing the cylindrical formwork 1. The tie rod assembly 7 passes through the side formwork 10 of the beams on both sides of the same location, with its two ends pulling and pressing against the ends of the connector 6 and the secondary ribs 8, respectively. The strut 4 passes through the middle of the connector 6 and is adjusted in length against the connector 6 via the locking nut 5. The retainer 3 is located at one end of the strut 4. The support bar 2 is vertical and located inside the retainer 3, which presses the support bar 2 against the outside of the cylindrical formwork 1. (See attached image) Figure 1 and Figure 2 .
[0023] Regarding the beam side formwork reinforcement mechanism, in this embodiment, preferably: as follows: Figure 1 and Figure 2 As shown, the main joists 11 are made of timber, the secondary joists 8 are made of round tubes, and the tie rod assembly 9 uses a mountain-shaped locking device.
[0024] Regarding the cylindrical formwork reinforcement mechanism, in this embodiment, preferably: as follows: Figure 1 As shown, adapter 6 is made of a zigzag-shaped metal square tube or metal strip; such as Figure 2 As shown, two adapter pieces 6 form a group, and the tie rod assembly 7 passes through the two adapter pieces 6 in the same group; the support rod 4 passes through the two adapter pieces 6 in the same group; as Figure 1 As shown, the tie rod assembly 7 uses a plate-shaped locking element; as Figure 1 As shown, support bar 2 is made of wood.
[0025] The beam side formwork reinforcement mechanism in this device can reinforce the beam side formwork 10, and at the same time provide an installation platform for the adapter 6. The adapter 6 provides back support for the strut 4, the bracket 3 and the support bar 2, so it can provide back support for the cylindrical formwork 1 in a narrow space, thus effectively reinforcing the formwork at the junction of the top of the concrete cylindrical column and the beam.
[0026] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
Claims
1. A formwork reinforcement device for the junction of a concrete cylinder top with a beam, characterised in that: The beam side formwork, the cylindrical formwork, the beam side formwork reinforcing mechanism, and the cylindrical formwork reinforcing mechanism are included. The beam side formwork is arranged at the two sides of the two beams on the top of the cylinder. The cylindrical formwork is arranged on the top of the cylinder and between the two beams. The beam side formwork reinforcing mechanism is used for reinforcing the beam side formworks on the two sides of the same beam and includes a main beam, a secondary beam, and a pair of pull screw assemblies. The main beam and the secondary beam are sequentially arranged on the outside of the beam side formwork. The pair of pull screw assemblies pass through the beam side formworks on the two sides and are tightly pressed on the secondary beams on the two sides at the two ends. The cylindrical formwork reinforcing mechanism is used for reinforcing the cylindrical formwork and is arranged between the two beams on the top of the cylinder. The cylindrical formwork reinforcing mechanism includes an adapter, a pair of pull screw assemblies, a support rod, a locking nut, a clamping seat, and a support strip. The two ends of the adapter are respectively arranged on the secondary beams of the beam side formworks on the two sides and face the cylindrical formwork. The pair of pull screw assemblies pass through the beam side formworks on the two sides of the same beam and are tightly pressed on the secondary beams and the ends of the adapter at the two ends. The support rod passes through the middle part of the adapter and is adjustably arranged on the adapter by the locking nut. The clamping seat is arranged at one end of the support rod. The support strip is vertically arranged in the clamping seat. The clamping seat arranges the support strip on the outside of the cylindrical formwork.
2. The form tieback assembly of claim 1, wherein: The main beam is made of a square wood. The secondary beam is made of a round pipe.
3. The form tieback assembly of claim 2, wherein: The pair of pull screw assemblies is made of a mountain-shaped locking piece.
4. The form tieback assembly of claim 1, wherein: The adapter is made of a broken line-shaped metal square pipe or a metal strip.
5. The form tieback assembly of claim 4, wherein: the first and second tieback members are each a threaded rod; the first and second tieback members are each secured to the formwork assembly by a nut; and the first and second tieback members are each secured to the concrete column by a nut. 5 Two adapters are arranged in a group. The pair of pull screw assemblies passes through the two adapters in the same group. The support rod passes through the two adapters in the same group.
6. The form tieback assembly of claim 4, wherein: The pair of pull screw assemblies is made of a plate-shaped locking piece.
7. The form tieback assembly of claim 1, wherein: The support strip is made of a square wood.