Post-cast strip PVC pipe mold concrete independent column supporting structure
By installing a PVC pipe formwork concrete independent column support structure under the post-pouring strip, the problem of long occupation time of traditional steel pipe support frame is solved, realizing efficient material turnover and reducing labor costs, and improving the stability of the base plate and post-pouring strip.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING XINZHOU ARCHITECTURE ENG CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional steel pipe support frames take a long time to construct post-pouring strips, are inconvenient for material turnover, and increase labor costs.
The PVC pipe formwork concrete independent column support structure is adopted. By installing pipes and pouring support columns under the post-pouring strip, the full-span scaffolding is removed after the base slab concrete is formed, and then the support frame is erected for support, which reduces the material occupation time and the amount of erection.
It shortens the time required for the post-pouring strip support frame, reduces material requirements and labor costs, and improves the stability and robustness of the base plate and post-pouring strip.
Smart Images

Figure CN224228248U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of post-cast strip construction technology, and in particular to a post-cast strip PVC pipe formwork concrete independent column support structure. Background Technology
[0002] A post-cast strip is a concrete strip left at a corresponding location in the base slab, wall, or beam during building construction to prevent harmful cracks that may occur in reinforced concrete structures due to uneven shrinkage or settlement. It is installed according to design or construction specifications. The post-cast strip temporarily divides the structure into several parts. After a certain period of time, following the internal shrinkage of the components, the concrete at this construction joint is poured to connect the structure into a unified whole.
[0003] Currently, the traditional method for supporting the post-cast strip in the foundation slab uses a conventional steel pipe support frame system. This support frame needs to be disconnected from the main scaffolding and retained until the post-cast strip is closed and the concrete is cured. This method suffers from several drawbacks: long material usage time for the support frame, inconvenience in later relocation from the basement, and significant increases in labor costs. Utility Model Content
[0004] To address the issue of increased labor costs due to the long material usage time of the post-cast strip support frame, this application provides a post-cast strip PVC pipe formwork concrete independent column support structure.
[0005] The technical solution for the post-cast strip PVC pipe formwork concrete independent column support structure provided in this application is as follows:
[0006] A PVC pipe formwork concrete independent column support structure for post-pouring strip includes a pipe, a support column, and a support frame. The pipe is connected and installed below the post-pouring strip. The support column is formed by pouring concrete into the pipe during the pouring of the base slab concrete. The support frame is erected at the post-pouring strip after the scaffolding is dismantled to support the post-pouring strip.
[0007] By adopting the above technical solution, when constructing the foundation slab concrete support system, the pipes are installed below the post-pouring strip. When pouring the foundation slab concrete, the concrete is simultaneously poured into the pipes to form support columns to support the post-pouring strip. After the foundation slab concrete is formed, the full-span scaffolding can be removed. At this time, the support columns support the post-pouring strip position. Then, a support frame is erected to support the post-pouring strip position. This reduces the time occupied by the post-pouring strip support frame and also reduces the amount of post-pouring strip support frame erected, thus improving the problem of long material occupation time and increased labor costs associated with the foundation slab post-pouring strip support frame.
[0008] Optionally, the support frame includes two rows of steel pipe frames, which are respectively erected on both sides of the post-cast strip to support the bottom slab concrete on both sides of the post-cast strip.
[0009] By adopting the above technical solution, two rows of steel pipe frames support the bottom plates on both sides of the post-cast strip, thereby improving the stability of the bottom plates on both sides of the post-cast strip.
[0010] Optionally, a transverse support rod is provided between the two rows of steel pipe frames, and the transverse support rod abuts against the bottom of the post-pouring strip.
[0011] By adopting the above technical solution, the horizontal support rod supports the bottom of the post-pouring strip, thereby improving the stability of the bottom of the post-pouring strip when pouring concrete.
[0012] Optionally, a support beam is slidably disposed on the pipe, and a positioning element is disposed on the support beam for positioning the support beam on the pipe.
[0013] By adopting the above technical solution, after the pipe is installed, the support beam is driven to slide on the pipe until it is pressed against the bottom of the post-pouring strip. Then, the support beam is positioned by the positioning component, which increases the contact area between the pipe and the bottom of the post-pouring strip and improves the support effect on the bottom of the post-pouring strip.
[0014] Optionally, the positioning element includes a clamp, which is mounted on the support beam and used to clamp the pipe fitting.
[0015] By adopting the above technical solution, the clamp can be tightened onto the pipe fixture, making it easy to position the support beam on the pipe fixture.
[0016] Optionally, the support beam is circumferentially fitted onto the pipe.
[0017] By adopting the above technical solution, when the support beam is driven to press against the bottom of the post-pouring strip, the support beam fitted on the pipe can seal the gap between the top of the pipe and the post-pouring strip, reducing the accuracy requirements for the length of the pipe.
[0018] Optionally, an anti-slip pad is provided on the side of the clamp near the pipe fitting.
[0019] By adopting the above technical solution, the anti-slip pad increases the friction between the clamp and the pipe, thereby improving the stability of the clamp on the pipe.
[0020] Optionally, the support column has built-in support bars, which are anchored to the reinforcing bars at the post-cast strip location.
[0021] By adopting the above technical solution, the supporting ribs enhance the structural strength of the supporting column and improve the stability of the supporting column in supporting the post-cast strip.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. Reduce the time occupied by post-pouring strip support frames and reduce the amount of post-pouring strip support frames to be erected, thus improving the problem of increased labor costs due to the long material occupation time of post-pouring strip support frames for the foundation slab;
[0024] 2. Two rows of steel pipe frames support the bottom plates on both sides of the post-cast strip, improving the stability of the bottom plates on both sides of the post-cast strip;
[0025] 3. The support beam fitted onto the pipe can seal the gap between the top of the pipe and the post-cast strip, reducing the accuracy requirements for the pipe length. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the post-cast strip PVC pipe formwork concrete independent column support structure according to an embodiment of this application.
[0027] Figure 2 This is a schematic diagram of the pipe fitting according to an embodiment of this application.
[0028] Reference numerals: 1. Pipe; 2. Support column; 3. Support frame; 31. Steel pipe frame; 4. Horizontal support rod; 5. Support beam; 6. Positioning component; 61. Clamp. Detailed Implementation
[0029] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0030] This application discloses a concrete independent column support structure with a PVC pipe formwork for post-cast strips.
[0031] Reference Figure 1 , Figure 2 The PVC pipe formwork concrete independent column support structure for the post-pouring strip includes a pipe 1, a support column 2, and a support frame 3. The pipe 1 is installed below the post-pouring strip. In this embodiment, the pipe 1 is a PVC pipe and is connected to the formwork of the post-pouring strip. The support column 2 is installed inside the pipe 1 and is formed by pouring concrete into the pipe 1 during the pouring of the base slab concrete.
[0032] When constructing the concrete support system for the base slab, pipe 1 is installed below the post-pouring strip, and holes are made in the formwork of the post-pouring strip to connect pipe 1 with the post-pouring strip. When pouring the base slab concrete, the concrete is poured into pipe 1 simultaneously from the formwork opening of the post-pouring strip. After the concrete reaches the design strength, a support column 2 is formed inside pipe 1, which supports the post-pouring strip.
[0033] Reference Figure 1 , Figure 2A support beam 5 is slidably installed on the pipe 1 along its length. The support beam 5 is circumferentially fitted onto the pipe 1. In this embodiment, the support beam 5 is a steel ring. A positioning component 6 is installed on the support beam 5. The positioning component 6 is used to position the support beam 5 on the pipe 1. The positioning component 6 includes a clamp 61, which is installed at the bottom of the support beam 5 and is used to tighten it onto the pipe 1. An anti-slip pad is installed on the side of the clamp 61 near the pipe 1. In this embodiment, the anti-slip pad is a rubber pad.
[0034] After the pipe fitting 1 is installed, the sliding support beam 5 is pressed against the bottom of the post-pouring strip template. Then, the clamp 61 is tightened onto the pipe fitting 1. The anti-slip pad enhances the friction between the clamp 61 and the pipe fitting 1, improving the stability of the clamp 61 on the pipe fitting 1. The clamp 61 can then provide stable support for the support beam 5, making the support beam 5 close to the bottom of the post-pouring strip template. This increases the contact area between the pipe fitting 1 and the template at the bottom of the post-pouring strip, thus improving the support effect on the bottom of the post-pouring strip. At the same time, the support beam 5, which is circumferentially fitted onto the pipe fitting 1, can also seal the gap between the top of the pipe fitting 1 and the post-pouring strip, reducing the accuracy requirements for the length of the pipe fitting 1 and reducing the possibility of concrete seeping out from between the pipe fitting 1 and the bottom of the post-pouring strip when pouring concrete into the pipe fitting 1.
[0035] Reference Figure 2 The support column 2 has built-in support bars, which are anchored to the reinforcing bars at the post-cast strip location. The support bars increase the tensile strength and structural strength of the support column 2, thereby improving the stability of the support column 2 in supporting the post-cast strip.
[0036] Reference Figure 1 The support frame 3 is erected at the post-pouring strip after the full scaffolding is dismantled to support the post-pouring strip. The support frame 3 includes two rows of steel pipe frames 31, which are erected on both sides of the post-pouring strip. The two rows of steel pipe frames 31 abut against the bottom of the base plate on both sides of the post-pouring strip to support the base plate concrete. A transverse support rod 4 is installed between the two rows of steel pipe frames 31, and the transverse support rod 4 abuts against the bottom of the post-pouring strip.
[0037] After the base slab concrete reaches the design strength and is formed, the full-span scaffolding is removed. Then, two rows of steel pipe frames 31 are erected at the post-pouring strip location, and supporting crossbars are erected between the two rows of steel pipe frames 31. The two rows of steel pipe frames 31 support the base slab concrete on both sides of the post-pouring strip, and the supporting crossbars support the bottom of the post-pouring strip, effectively improving the stability of the base slab on both sides of the post-pouring strip and enhancing the stability of the bottom of the post-pouring strip when the post-pouring strip concrete is poured subsequently.
[0038] The implementation principle of the PVC pipe formwork concrete independent column support structure for post-cast strip in this application embodiment is as follows: When erecting the base slab concrete support system, the pipe 1 is installed below the post-cast strip, so that the support beam 5 is pressed against the template at the bottom of the post-cast strip, and the support reinforcement is installed inside the pipe 1. Then, the base slab concrete is poured, and the concrete is poured into the pipe 1 simultaneously, so that the concrete forms the support column 2 inside the pipe 1. The support column 2 can support the bottom of the post-cast strip, and the template at the bottom of the post-cast strip supports both sides of the post-cast strip. After the base slab concrete reaches the design strength and is formed, the full-span scaffold can be removed, and two rows of support frames 3 can be erected to support the base slab on both sides of the post-cast strip. After the subsequent post-cast strip is poured, the pipe 1 and support column 2 are removed, which reduces the occupation time of the post-cast strip support frame 3 and reduces the amount of post-cast strip support frame 3 required to be erected, thus improving the problem of long material occupation time and increased labor costs of the base slab post-cast strip support frame 3.
[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A post-cast PVC pipe formwork concrete independent column support structure, characterized in that: It includes a pipe (1), a support column (2) and a support frame (3). The pipe (1) is connected and installed below the post-pouring strip. The support column (2) is formed by pouring concrete into the pipe (1) when pouring the bottom slab concrete. The support frame (3) is erected at the post-pouring strip after the full-span scaffold is dismantled to support the post-pouring strip.
2. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 1, characterized in that: The support frame (3) includes two rows of steel pipe frames (31), which are erected on both sides of the post-cast strip to support the bottom slab concrete on both sides of the post-cast strip.
3. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 2, characterized in that: A transverse support rod (4) is provided between the two rows of steel pipe frames (31), and the transverse support rod (4) abuts against the bottom of the post-pouring strip.
4. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 1, characterized in that: A support beam (5) is slidably provided on the pipe (1), and a positioning element (6) is provided on the support beam (5) for positioning the support beam (5) on the pipe (1).
5. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 4, characterized in that: The positioning component (6) includes a clamp (61), which is mounted on the support beam (5) and used to clamp the pipe (1).
6. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 4, characterized in that: The support beam (5) is circumferentially fitted onto the pipe (1).
7. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 5, characterized in that: The clamp (61) is provided with an anti-slip pad on the side near the pipe (1).
8. The post-cast strip PVC pipe formwork concrete independent column support structure according to claim 1, characterized in that: The support column (2) has built-in support bars, which are anchored to the steel bars at the post-cast strip position.