A column-holding ground type bent cap bearing formwork support platform
By using a column-supported, ground-mounted cap beam support frame, which uses column-supporting steel rings to fix the cap beam to the column, the problem of insufficient load-bearing capacity of large-size cap beams is solved, achieving efficient, economical, and environmentally friendly support effects, and avoiding resource waste and environmental pollution in foundation treatment.
Patent Information
- Application Number
- CN202522535465.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-28
AI Technical Summary
When dealing with large-sized cap beams, conventional clamps cannot meet the load-bearing requirements, leading to the need for large-scale foundation treatment, resulting in resource waste, extended construction period, and environmental pollution.
The formwork supports are made of column-mounted, ground-supported cap beams. They are fixed to the columns by steel rings, utilizing the permanent structural bearing capacity to avoid foundation treatment. They are designed with high bearing capacity, are easy to install, and are safe and reliable.
It achieves a high load-bearing capacity, economic and environmental benefits, shortens the construction period, reduces resource consumption, and conforms to the concept of sustainable development.
Smart Images
Figure CN224930953U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of support platforms in engineering construction, and in particular relates to a column-supported, ground-mounted cap beam load-bearing formwork support platform. Background Technology
[0002] Generally, when the size of the cap beam is small, the cap beam of the bridge pier often adopts the process of casting in place with clamps and load-bearing formwork, which simplifies the construction process, avoids the erection of ground scaffolding, and saves the cost of foundation treatment and scaffolding erection.
[0003] However, when the weight of the cap beam is large and conventional clamps cannot meet the load-bearing requirements, a large-scale foundation treatment + foundation + ground-supported load-bearing formwork casting process is often adopted. The following problems will be encountered during construction: 1) Uneconomical: Large-scale foundation treatment will result in a large consumption of personnel, machinery and materials, which is not economical; 2) Long construction period: Foundation treatment, preloading and scaffolding erection will waste a lot of time, which will inevitably extend the construction period; 3) Not environmentally friendly: The treated foundation will inevitably produce a large amount of solid waste, which does not conform to the current concept of sustainable development, green and environmental protection. Summary of the Invention
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a column-supported ground-mounted cap beam load-bearing formwork support platform. This solves the problem that the cast-in-place cap beam is too large to use the clamp + ground-mounted load-bearing formwork support process, and avoids many drawbacks such as resource waste, construction delays and environmental damage caused by large-scale foundation treatment.
[0005] The purpose of this utility model is achieved through the following technical solution: the supporting platform of this column-supported ground-mounted cap beam formwork support includes a column-supporting steel ring; the column-supporting steel ring is composed of two semi-circular steel rings, and each of the two outer side walls at the open end of the steel ring is provided with a connecting ear unit. The two steel rings are fixed together by bolts through their respective connecting ear units to form the column-supporting steel ring. A support platform is fixed to the outer side wall of each steel ring by welding. The height of the support platform and the height of the connecting ear unit are equal to the height of the column-supporting steel ring.
[0006] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up a column-holding steel ring and providing support platforms on both sides, and by using two steel rings and bolts to hold and fix the column to the column, and then placing it on the ground to serve as a support platform for the cap beam formwork; it has the advantages of large load-bearing capacity, simple installation, safety and reliability, and economic and environmental protection.
[0007] Preferably, the connecting ear unit includes a connecting ear plate and a stiffening plate. The connecting ear plate is fixed to the outer wall of the opening end of the steel ring by welding, and the connecting ear plate has several bolt holes. Several stiffening plates are provided and fixed between the connecting ear plate and the outer wall of the steel ring by welding, and the stiffening plates are arranged along the height direction of the connecting ear plate and are evenly distributed. With the above structure, the structure is relatively simple to form and has good strength, which makes the bearing capacity between the column-holding steel ring and the column better.
[0008] Preferably, the connecting lugs are symmetrically distributed on the steel rings, and the connecting lugs between the two steel rings are relatively distributed, and the bolt holes are distributed in a one-to-one correspondence; with the above structure, not only is installation more convenient, but the force of the two steel rings and the column to hold and fix them is also better.
[0009] Preferably, the support platform includes vertical load-bearing ribs, grating stiffening plates, and surface steel plates. Two surface steel plates are provided and fixed to the outer wall of the steel ring by welding, with the two surface steel plates flush with the upper and lower ends of the steel ring, respectively. The vertical load-bearing ribs are fixed between the two surface steel plates by welding, and the grating stiffening plates are fixed between the two vertical load-bearing ribs by welding. This structural design not only facilitates molding but also improves load-bearing capacity.
[0010] Preferably, the vertical load-bearing ribs are provided in several pieces, and adjacent vertical load-bearing ribs are welded together sequentially along the height direction of the support platform; in this way, the modular splicing of the vertical load-bearing ribs can be set according to the height of the support platform, which makes construction more convenient, and the height can be predetermined according to the actual situation.
[0011] Preferably, the grating stiffening plate is provided in several pieces, and the grating stiffening plate is fixed between adjacent vertical load-bearing ribs along the width direction of the support platform. The several pieces of grating stiffening plate together form a stiffening plate with the same shape as the surface steel plate. Through the above structure, modular splicing between the grating stiffening plates can be realized, which facilitates construction and the forming of the support platform.
[0012] Preferably, the inner diameter of the column-holding steel ring is equal to the outer diameter of the column, so that the column-holding steel ring and the column achieve an interference fit and better holding force. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the main structure of the load-bearing platform of this utility model.
[0014] Figure 2 This is a top view schematic diagram of the load-bearing platform of this utility model.
[0015] Figure 3 This is a schematic diagram of the structure between the steel ring and the connecting ear unit of this utility model.
[0016] Figure 4 This is a schematic diagram of the main structure of the load-bearing platform of this utility model in actual application.
[0017] The labels in the attached diagram are as follows: 1. Column retaining steel ring; 2. Connecting ear unit; 3. Support platform; 4. Column; 5. Pile head; 6. Concrete; 11. Steel ring; 21. Connecting ear plate; 22. Stiffening plate; 23. Bolt hole; 31. Vertical load-bearing rib; 32. Grating stiffening plate; 33. Surface steel plate. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings: as shown in the drawings Figures 1 to 4 As shown, this utility model includes a column-holding steel ring 1; the column-holding steel ring 1 is composed of two semi-circular steel rings 11, and each steel ring 11 has a connecting ear unit 2 on its two outer side walls at the open end. The two steel rings 11 are fixed together by bolts through their respective connecting ear units 2 to form the column-holding steel ring 1. A support platform 3 is fixed to the outer side wall of each steel ring 11 by welding. The height of the support platform 3 and the height of the connecting ear unit 2 are equal to the height of the column-holding steel ring 1. The permanent structure bears the load transferred from the upper structure to the load-bearing platform. The load-bearing platform uses the treated pile foundation and column interface platform as the force-bearing point to transfer the load downward to the permanent structure pile foundation. The friction force between the column-holding steel ring 1 and the column 4 serves only as a safety reserve. Its effect is: 1. High load-bearing capacity: The maximum allowable load-bearing capacity of a single load-bearing platform is 500T; 2. Easy and safe installation: Installation can be completed on the ground within 2 hours using one 25T truck crane and two skilled workers, avoiding high-altitude installation work; 3. Economic and environmental benefits: Since the load-bearing platform makes full use of the load-bearing capacity of the permanent structure, there is no need for large-scale foundation treatment and no solid waste is generated, resulting in significant economic and environmental benefits.
[0019] The connecting ear unit 2 includes a connecting ear plate 21 and a stiffening plate 22. The connecting ear plate 21 is fixed to the outer wall of the opening end of the steel ring 11 by welding, and a number of bolt holes 23 are provided on the connecting ear plate 21. A number of stiffening plates 22 are provided and fixed between the connecting ear plate 21 and the outer wall of the steel ring 11 by welding, and the number of stiffening plates 22 are arranged along the height direction of the connecting ear plate 21 and are distributed at equal intervals.
[0020] The connecting lugs 21 are symmetrically distributed on the steel rings 11, and the connecting lugs 21 between the two steel rings 11 are relatively distributed, and the bolt holes 23 are distributed in a one-to-one correspondence.
[0021] The support platform 3 includes vertical load-bearing ribs 31, grating stiffening plates 32, and surface steel plates 33. Two surface steel plates 33 are provided and are fixed to the outer wall of the steel ring 11 by welding. The two surface steel plates 33 are flush with the upper and lower ends of the steel ring 11, respectively. The vertical load-bearing ribs 31 are fixed between the two surface steel plates 33 by welding, and the grating stiffening plates 32 are fixed between the two vertical load-bearing ribs 31 by welding.
[0022] Several vertical load-bearing ribs 31 are provided, and adjacent vertical load-bearing ribs 31 are welded together in sequence along the height direction of the support platform 3.
[0023] Several grid stiffening plates 32 are provided, which are fixed between adjacent vertical load-bearing ribs 31 along the width direction of the support platform 3, and the several grid stiffening plates 32 together form a stiffening plate with the same shape as the surface steel plate 33. The vertical load-bearing ribs 31 and grid stiffening plates 32 mentioned above are distributed at equal intervals along the width direction of the support platform 3.
[0024] The inner diameter of the steel ring 1 is equal to the outer diameter of the column 4. The pile head treatment is as follows: The pile head 5 is removed using a pneumatic hammer to the designed pile top elevation, ensuring a firm concrete surface and uniform aggregate distribution within the pile body area. If the concrete quality within the pile body area at the pile top elevation is poor, continue removing until a fresh concrete surface is reached. A 2.8m diameter C40 concrete 6 is poured within the bottom 50cm of the column 4, and an HRB400 Φ25 reinforced concrete structure 7 is installed on the top surface as the load-bearing point at the bottom of the load-bearing platform.
[0025] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A column-supported, ground-mounted formwork support platform for cap beams, comprising a column-supporting steel ring (1); characterized in that: The column-holding steel ring (1) is composed of two semi-circular steel rings (11). Each of the two outer side walls of the opening end of each steel ring (11) is provided with a connecting ear unit (2). The two steel rings (11) are fixed together by bolts through their respective connecting ear units (2). Each of the outer side walls of each steel ring (11) is fixed with a support platform (3) by welding. The height of the support platform (3) and the height of the connecting ear unit (2) are equal to the height of the column-holding steel ring (1).
2. The column-supported, ground-mounted formwork support platform for cap beams according to claim 1, characterized in that: The connecting ear unit (2) includes a connecting ear plate (21) and a stiffening plate (22). The connecting ear plate (21) is fixed to the outer wall of the opening end of the steel ring (11) by welding, and the connecting ear plate (21) has a plurality of bolt holes (23). The stiffening plate (22) has a plurality of pieces and is fixed between the connecting ear plate (21) and the outer wall of the steel ring (11) by welding, and the plurality of stiffening plates (22) are arranged along the height direction of the connecting ear plate (21) and are distributed at equal intervals.
3. The column-supported, ground-mounted formwork support platform for cap beams according to claim 2, characterized in that: The connecting lugs (21) are symmetrically distributed on the steel rings (11), and the connecting lugs (21) between the two steel rings (11) are relatively distributed, and the bolt holes (23) are distributed in a one-to-one correspondence.
4. The column-supported, ground-mounted formwork support platform for cap beams according to claim 1, characterized in that: The support platform (3) includes vertical load-bearing ribs (31), grid stiffening plates (32), and surface steel plates (33). The surface steel plates (33) are provided in two pieces and are fixed to the outer wall of the steel ring (11) by welding. The two surface steel plates (33) are flush with the upper and lower ends of the steel ring (11). The vertical load-bearing ribs (31) are fixed between the two surface steel plates (33) by welding. The grid stiffening plates (32) are fixed between the two vertical load-bearing ribs (31) by welding.
5. The column-supported, ground-mounted formwork support platform for cap beams according to claim 4, characterized in that: The vertical load-bearing ribs (31) are provided in several pieces, and adjacent vertical load-bearing ribs (31) are welded together in sequence along the height direction of the support platform (3).
6. The column-supported, ground-mounted formwork support platform for cap beams according to claim 4, characterized in that: The grating stiffening plate (32) is provided in several pieces. The grating stiffening plate (32) is fixed between the adjacent vertical load-bearing ribs (31) along the width direction of the support platform (3), and the several grating stiffening plates (32) together form a stiffening plate with the same shape as the surface steel plate (33).
7. The column-supported, ground-mounted formwork support platform for cap beams according to claim 1, characterized in that: The inner diameter of the steel ring (1) is equal to the outer diameter of the column (4).