Post-cast strip independent supporting structure
The independent support structure composed of temporary concrete columns and corbels solves the problem of tilting and leveling difficulties at the cantilever end of the post-cast strip during settlement, and realizes flexible leveling and material reuse without the need for ground-mounted scaffolding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTRUCTION ENGINEERING GROUP
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-15
AI Technical Summary
The existing independent support device for the cantilever end of the post-pouring strip is prone to tilting during settlement, making leveling cumbersome and requiring the erection of ground-mounted scaffolding, which is inconvenient.
The post-cast strip independent support structure consists of temporary concrete columns, first and second corbels, fixed hinge supports, adjustable bases, and movable supports. One side of the crossbeam has a fixed hinge support, and the other side has a movable support. The height of the crossbeam can be adjusted by the adjustable base to accommodate settlement, and subsequent horizontal adjustments and material reuse are also possible.
It eliminates the need for ground-mounted scaffolding, flexibly adapts to settlement, facilitates leveling and setting up of the bottom formwork base, and has a high material utilization rate.
Smart Images

Figure CN224244426U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of independent support for post-cast strips, and in particular to an independent support structure for post-cast strips. Background Technology
[0002] For example, Chinese invention patent publication number CN 108442692 A discloses an independent support device for the cantilevered end of a post-cast strip, which includes an independent support mechanism for the cantilevered end of the post-cast strip, two full-span scaffolding groups, and an independent support reinforcement mechanism. The independent support reinforcement mechanism is located at the bottom center of the independent support mechanism for the cantilevered end of the post-cast strip, and the two full-span scaffolding groups are symmetrically arranged on both sides of the bottom of the independent support mechanism for the cantilevered end of the post-cast strip. It relies on erecting a ground-supported scaffolding to support the bottom formwork. However, for post-cast strips used for closure, sometimes they serve as settlement joints between the main structure and the podium. In this case, the ground-supported scaffolding is prone to tilting during settlement, making subsequent leveling cumbersome and inconvenient. Utility Model Content
[0003] The purpose of this utility model is to provide an independent support structure for post-pouring strips, which eliminates the need for ground-mounted scaffolding, can adapt to settlement, and can level the base surface for supporting the bottom formwork, making it more flexible and convenient.
[0004] To solve the above problems, an independent support structure for post-cast strips was adopted, which includes:
[0005] Temporary concrete columns are installed under the cantilever beam sections on both sides of the post-cast strip;
[0006] The first corbel is set on a temporary concrete column on one side of the post-cast strip;
[0007] The second corbel is set on the temporary concrete column on the other side of the post-cast strip and spaced below the first corbel;
[0008] A fixed hinge support is fixed to the first bracket.
[0009] An adjustable base is fixed to the second bracket.
[0010] The movable support is fixed to the upper end of the adjustable base;
[0011] The crossbeam has one end fixed to a fixed hinge support and the other end slidably connected to a movable support.
[0012] With this structure, the crossbeam can serve as the base for the bottom formwork of the post-cast strip between the main structure and the podium. One side is a fixed hinge support, and the other side is a movable support, forming a simply supported beam that does not restrict rotation. This is beneficial for adapting to different settlements between the main structure and the podium. Subsequently, the height of one end of the crossbeam can be adjusted by the adjustable base to bring the crossbeam back to a horizontal state. After the settlement joint is sealed, the upper and lower ends of the temporary concrete column are cut off, and after the corbel is removed, it can serve as a lintel for doors and windows, so as to make full use of the material.
[0013] As a further improvement of this utility model, the fixed hinge support includes:
[0014] The first galvanized embedded plate is embedded on the first bracket, and the first expansion bolts are installed at its four corners for fixation.
[0015] The first support plate is vertically fixed to the galvanized embedded plate;
[0016] The second support plate is hinged between the two first support plates;
[0017] The top plate is fixed to the second support plate and bolted to the crossbeam.
[0018] With this structure, relative rotation can occur between the first support plate and the second support plate. After the top plate is fixed to the crossbeam, a fixed hinge support is formed, which only restricts the vertical and horizontal displacement of the crossbeam, but does not restrict its rotation.
[0019] As a further improvement of this utility model, the adjustable base includes:
[0020] The second galvanized embedded plate is fixed to the top surface of the second bracket, and the second expansion bolts are installed at its four corners for fixation.
[0021] A threaded sleeve, which is fixed to a second galvanized embedded plate;
[0022] A screw is threaded into a threaded sleeve, and a U-shaped support is fitted onto its upper end; rotating arms are provided on both sides of the screw.
[0023] With this structure, the rotating arm is operated to rotate the screw, which moves up and down along the axial direction of the threaded sleeve. The height of the movable support can be adjusted. After the settlement is basically stable, the crossbeam is adjusted to be horizontal to support the bottom formwork of the post-pouring strip.
[0024] As a further improvement of this utility model, the movable support includes:
[0025] A stepped base, which is installed in a U-shaped bracket, includes an upper step and a lower step. A pin hole is provided at the top of the lower step, and a pin is provided on the bottom surface of the upper step and slidably inserted into the pin hole.
[0026] With this structure, the lower step can rotate with the U-shaped support, while the upper step can rotate relative to the lower step, thus avoiding affecting the support of the crossbeam.
[0027] As a further improvement of this utility model, the crossbeam is an I-beam, and spaced ribs are provided on the bottom surface of its lower flange plate on both sides of the upper step.
[0028] With this structure, the ribs prevent the ends of the crossbeam from tilting horizontally, and the crossbeam can maintain rotation in the vertical plane during the up-and-down movement of the movable support.
[0029] This utility model eliminates the need for erecting ground-mounted scaffolding, can adapt to settlement, and allows for leveling of the base surface of the frame supporting the bottom formwork, making it more flexible and convenient. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of an embodiment.
[0031] Figure 2 This is a schematic diagram of a fixed hinge support.
[0032] Figure 3 This is a schematic diagram of the installation structure of the movable support.
[0033] Figure 4 This is a schematic diagram of the stepped base structure.
[0034] 1. Temporary concrete column; 2. First corbel; 3. Second corbel;
[0035] 4. Fixed hinge support; 401. First galvanized embedded plate; 402. First expansion bolt; 403. First support plate; 404. Second support plate; 405. Top plate;
[0036] 5. Adjustable base; 501. Second galvanized embedded plate; 502. Second expansion bolt; 503. Threaded sleeve; 504. Screw; 505. U-shaped support; 506. Rotating arm;
[0037] 6. Movable support;
[0038] 601, Step seat; 6011, Going up the steps; 6012, Going down the steps;
[0039] 602, pin hole; 603, pin;
[0040] 7. Crossbeam; 701. Lower flange plate; 702. Rib plate
[0041] 8. Post-cast strip; 9. Cantilever beam segment. Detailed Implementation
[0042] 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.
[0043] Example 1
[0044] like Figures 1-4 As shown, a post-cast strip independent support structure includes:
[0045] Temporary concrete column 1 is installed under the cantilever beam sections 9 on both sides of the post-cast strip 8;
[0046] The first corbel 2 is set on the temporary concrete column 1 on one side of the post-cast strip 8;
[0047] The second corbel 3 is set on the temporary concrete column 1 on the other side of the post-cast strip 8 and spaced below the first corbel 2;
[0048] Fixed hinge support 4 is fixed to the first bracket 2;
[0049] Adjustable base 5, which is fixed on the second bracket 3;
[0050] The movable support 6 is fixed to the upper end of the adjustable base 5;
[0051] The crossbeam 7 has one end fixed to the fixed hinge support 4 and the other end slidably connected to the movable support 6.
[0052] With this structure, the crossbeam 7 can serve as the base for the bottom formwork of the post-cast strip between the main body and the podium. One side of it is a fixed hinge support, and the other side is a movable support, forming a simply supported beam that does not restrict rotation. This is beneficial for adapting to different settlements between the main body and the podium. Subsequently, the height of one end of the crossbeam 7 can be adjusted by the adjustable base 5 to bring the crossbeam 7 back to a horizontal state.
[0053] In this embodiment, the fixed hinge support 4 includes:
[0054] The first galvanized embedded plate 401 is embedded on the first bracket 2, and the first expansion bolts 402 are installed at its four corners for fixation.
[0055] The first support plate 403 is vertically fixed to the galvanized embedded plate 401 at intervals;
[0056] The second support plate 404 is hinged between the two first support plates 403;
[0057] The top plate 405 is fixed on the second support plate 404 and bolted to the crossbeam 7.
[0058] With this structure, relative rotation can occur between the first support plate 403 and the second support plate 404. After the top plate 405 is fixedly connected to the crossbeam 7, a fixed hinge support is formed, which only restricts the vertical and horizontal displacement of the crossbeam 7, but does not restrict its rotation.
[0059] In this embodiment, the adjustable base 5 includes:
[0060] The second galvanized embedded plate 501 is fixed to the top surface of the second bracket 3, and the second expansion bolts 502 are installed at its four corners for fixation.
[0061] Threaded sleeve 503 is fixed on the second galvanized embedded plate 501;
[0062] The screw 504 is threadedly connected to the threaded sleeve 503, and its upper end is fitted with a U-shaped support 505; rotating arms 506 are provided on both sides of the screw 504.
[0063] With this structure, the rotating arm 506 is operated to rotate the screw 504, which moves up and down along the axial direction of the threaded sleeve 503. The height of the movable support 6 can be adjusted. After the settlement is basically stable, the crossbeam is adjusted to be horizontal to support the bottom formwork of the post-pouring strip.
[0064] In this embodiment, the movable support 6 includes:
[0065] The stepped base 601 is installed in the U-shaped support 505. It includes an upper step 6011 and a lower step 6012. The lower step 6012 is provided with a pin hole 602 at the top. The upper step 6011 is provided with a pin 603 on the bottom surface, which is slidably inserted into the pin hole 602.
[0066] With this structure, the lower step 6012 can rotate with the U-shaped support 505, while the upper step 6011 can rotate relative to the lower step 6012, thus avoiding affecting the support of the crossbeam 7.
[0067] In this embodiment, the crossbeam 7 is an I-beam, and spaced ribs 702 are provided on the bottom surface of its lower flange plate 701 on both sides of the upper step 6031.
[0068] With this structure, the rib plate 702 can prevent the end of the crossbeam 7 from tilting horizontally, and the crossbeam 7 can maintain rotation in the vertical plane during the up and down movement of the movable support 6.
[0069] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several equivalent substitutions or obvious modifications can be made without departing from the concept of the present invention, and all such modifications, with identical performance or use, should be considered within the protection scope of the present invention.
Claims
1. A post-cast strip independent support structure, characterized in that... include: Temporary concrete columns (1) are set under the cantilever beam sections (9) on both sides of the post-cast strip (8); The first corbel (2) is set on a temporary concrete column (1) on one side of the post-cast strip (8); The second corbel (3) is set on the temporary concrete column (1) on the other side of the post-cast strip (8) and spaced below the first corbel (2); Fixed hinge support (4), which is fixed on the first bracket (2); An adjustable base (5) is fixed to the second cow leg (3); The movable support (6) is fixed to the upper end of the adjustable base (5); The crossbeam (7) has one end fixed to the fixed hinge support (4) and the other end slidably connected to the movable support (6).
2. The independent support structure for the post-cast strip according to claim 1, characterized in that... The fixed hinge support (4) includes: The first galvanized embedded plate (401) is embedded on the first bracket (2), and the first expansion bolts (402) are installed at its four corners for fixation; The first support plate (403) is vertically fixed to the galvanized embedded plate (401); The second support plate (404) is hinged between the two first support plates (403); The top plate (405) is fixed on the second support plate (404) and bolted to the crossbeam (7).
3. The independent support structure for the post-cast strip according to claim 1, characterized in that... The adjustable base (5) includes: The second galvanized embedded plate (501) is fixed to the top surface of the second bracket (3), and the second expansion bolts (502) are installed at the four corners of the plate for fixing. A threaded sleeve (503) is fixed on a second galvanized embedded plate (501); The screw (504) is threadedly connected in the threaded sleeve (503), and its upper end is fitted with a U-shaped support (505); rotating arms (506) are provided on both sides of the screw (504).
4. The independent support structure for the post-cast strip according to claim 3, characterized in that... The movable support (6) includes: A stepped base (601) is installed in a U-shaped bracket (505). It includes an upper step (6011) and a lower step (6012). A pin hole (602) is provided at the top of the lower step (6012), and a pin (603) is provided on the bottom surface of the upper step (6011) and slidably inserted into the pin hole (602).
5. The independent support structure for the post-cast strip according to claim 4, characterized in that... The crossbeam (7) is an I-beam, and its lower flange plate (701) has spaced ribs (702) on the bottom surface located on both sides of the upper step (6031).