Rapid construction method for diaphragm plate of thin-wall hollow pier
By reserving steel bars and pre-embedded parts for hanging formwork, combined with a liftable platform and synchronous construction, the problem of frequent disassembly and assembly of inner formwork in the construction of thin-walled hollow pier diaphragms was solved, achieving efficient, stable and economical construction results.
Patent Information
- Application Number
- CN202511035576.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-25
- Publication Date
- 2025-11-28
AI Technical Summary
The frequent disassembly and assembly of the climbing formwork system during the construction of existing thin-walled hollow pier diaphragms results in a cumbersome construction process, long construction time, and high costs, which hinders the rapid progress of the project.
During construction, pre-embedded reinforcing bars for the diaphragm and pre-embedded hanging formwork are reserved. The climbing formwork system is used to move the entire structure upward to provide space, simplifying the installation and pouring steps of the hanging formwork and avoiding repeated disassembly and assembly of the inner formwork. A liftable construction platform and hanging formwork design are adopted to carry out the construction of the diaphragm and the next column section simultaneously.
It simplifies the construction process, shortens the construction cycle, reduces costs, improves construction efficiency and smoothness, and enhances the structural stability of the diaphragm.
Smart Images
Figure CN121023931A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of bridge pier construction, and in particular to a rapid construction method for thin-walled hollow pier diaphragms. Background Technology
[0002] In the field of bridge engineering, thin-walled hollow piers are a common structural form that has been widely used. With their advantages such as light weight and material savings, they play a vital role in the construction of various bridges, greatly promoting the development of bridge construction towards higher and more complex structures. Thin-walled hollow piers can not only adapt to different terrains and geological conditions, but also effectively reduce the load-bearing pressure on bridge foundations, improving the overall stability and safety of bridges, and providing strong support for the convenience and efficiency of modern transportation.
[0003] In the construction of thin-walled hollow piers, especially when it comes to the construction of diaphragms, traditional construction methods follow a set of standard procedures. Thin-walled hollow piers mainly consist of a solid foundation section, a hollow column section, and diaphragms. The diaphragms are located within the cavities of the column section, serving to support and strengthen it. Column section construction typically employs a climbing formwork system, which mainly consists of an outer formwork and an inner formwork. When it's time to construct the diaphragms, the inner formwork of the climbing formwork system is usually removed to provide sufficient space for the diaphragm mounting. After the diaphragm construction is completed, the inner formwork of the climbing formwork system is reinstalled before proceeding to the next column section. This construction method has long been used in the industry and is a relatively mature approach.
[0004] However, existing construction methods have significant drawbacks. The frequent removal and reinstallation of the inner formwork of the climbing formwork system during diaphragm construction is extremely cumbersome and severely impacts the smoothness of construction. The increased number of steps requires more time and manpower, lengthening the overall construction cycle, increasing costs, and hindering the rapid progress of the project. Summary of the Invention
[0005] To improve the construction efficiency of thin-walled hollow piers, this application provides a rapid construction method for the transverse diaphragm of thin-walled hollow piers.
[0006] This application provides a rapid construction method for thin-walled hollow pier diaphragms, which adopts the following technical solution:
[0007] A rapid construction method for thin-walled hollow pier diaphragms includes the following steps:
[0008] S1: Construction of the foundation section, and binding of the column section reinforcement at the top of the foundation section;
[0009] S2: Assemble the climbing formwork system and install a liftable construction platform inside the climbing formwork system. Hoist the climbing formwork system to the top of the foundation section and place it in place.
[0010] S3: Use a climbing formwork system to pour the column section at the top of the foundation section;
[0011] S4: After the first section of the column body is poured, continue to tie the reinforcing bars of the next section of the column body, then demold the climbing formwork system, and continue to lift the climbing formwork system so that the climbing formwork system is in place at the next construction position of the column body section;
[0012] S5: Repeat S3 and S4 until the column section at the diaphragm construction location is ready. First, tie the steel bars of the column section at the diaphragm location and reserve the diaphragm steel bar embedded parts and hanging formwork embedded parts. Then, the climbing formwork system is in place and the pouring construction is carried out. After the pouring construction is completed, the climbing formwork system is demolded. Then, the climbing formwork system is lifted and moved out from the diaphragm construction location and placed in place at the next column section construction location.
[0013] S6: Lower the construction platform and the diaphragm formwork from the climbing formwork system, so that the construction platform and the diaphragm formwork are in place at the diaphragm construction position. The construction platform is used to complete the installation and fixing of the diaphragm formwork around the formwork.
[0014] S7: Install the reinforcing bars in the pre-embedded parts of the diaphragm reinforcing bars and complete the binding and fixing of the reinforcing bars. The diaphragm formwork is positioned and fixed by the pre-embedded parts of the formwork.
[0015] S8: Pour concrete at the construction location of the diaphragm to form the diaphragm.
[0016] By adopting the above technical solution, the column section reinforcement is tied at the top of the foundation section, and the column section is poured using a climbing formwork system. When constructing the diaphragm, relevant embedded parts are reserved in advance. After the climbing formwork system moves up as a whole, sufficient space is provided for the construction of the diaphragm. The construction platform and diaphragm formwork are lowered from the climbing formwork system and positioned. The formwork is installed and fixed, the reinforcement is tied and positioned, and finally the concrete is poured to form the structure. This avoids the repeated disassembly and assembly of the climbing formwork system's inner formwork, simplifies the construction process, improves the smoothness of construction, and effectively shortens the construction cycle.
[0017] Preferably, in step S6, the middle of the diaphragm formwork has a pre-reserved opening for the construction platform to pass through, and the periphery of the opening is surrounded by a maintenance opening side template. After the diaphragm is cast in step S8, a maintenance opening is formed in the middle of the diaphragm, and the construction platform moves upward through the maintenance opening.
[0018] By adopting the above technical solution, an opening is reserved in the middle of the diaphragm hanging formwork and an inspection port side template is set at the edge of the opening. This allows the diaphragm to form an inspection port in the middle after it is cast, which can be passed through by the construction platform. This makes it easy for the construction platform to be removed from the position below the diaphragm. At the same time, the setting of the inspection port facilitates subsequent inspection and maintenance of the interior of the hollow pier and the interior of the diaphragm.
[0019] Preferably, in S6, the diaphragm hanging mold includes a horizontal plate disposed on the periphery of the horizontal template and an inclined plate disposed in the middle of the horizontal plate. The inclined plate extends downward at an angle toward the inner wall of the column section. In S8, after the diaphragm is formed, a reinforcing part with a downward chamfer shape is formed at the bottom of the periphery of the diaphragm.
[0020] By adopting the above technical solution, the diaphragm hanging formwork adopts a structure including a horizontal plate and a peripheral inclined plate, and the inclined plate extends downward towards the inner wall of the column section, so that the bottom of the peripheral side of the diaphragm forms a reinforced part with a downward chamfer shape after the diaphragm is formed, which strengthens the structural strength of the diaphragm and improves the overall stability of the thin-walled hollow pier.
[0021] Preferably, in step S6, the construction platform is positioned below the formwork of the diaphragm, and a support system is constructed between the construction platform and the bottom of the formwork to support the bottom of the formwork.
[0022] By adopting the above technical solution, a support system is constructed between the construction platform and the bottom of the formwork, which can support the bottom of the formwork, ensure the stability and safety of the installation and fixing of the diaphragm formwork, and facilitate the smooth construction of the diaphragm.
[0023] Preferably, in step S6, the support system between the construction platform and the bottom of the formwork adopts detachable support rods, with a plurality of support rods supporting the outer side of the inclined plate and a plurality of support rods supporting the bottom of the horizontal plate.
[0024] By adopting the above technical solution, several support rods support the outer side of the inclined plate and the bottom of the horizontal plate, which can effectively ensure the stability of the diaphragm formwork during construction. Moreover, after the diaphragm is poured, the detachable support rods are easy to disassemble and recycle, which is conducive to the reuse of construction materials and reduces resource waste.
[0025] Preferably, after the diaphragm is cast, the support rods below the hanging mold are disassembled and recycled.
[0026] By adopting the above technical solution, the detachable support rods under the formwork can be disassembled and recycled after the diaphragm is poured, which can realize the reuse of the support rods, reduce construction costs, facilitate subsequent construction operations, and improve construction efficiency.
[0027] Preferably, the climbing formwork system is equipped with a liftable temporary scaffold. In step S7, construction workers are lowered onto the hanging formwork via the temporary scaffold to carry out the work of binding the diaphragm reinforcement.
[0028] By adopting the above technical solution, the climbing formwork system is equipped with a liftable temporary scaffold, which allows construction workers to be lowered onto the hanging formwork to carry out the work of binding the diaphragm reinforcement. This facilitates the workers' access to the work position and improves the convenience and efficiency of the diaphragm reinforcement binding work.
[0029] Preferably, while the diaphragm of S8 is being poured, the next column section is also being constructed simultaneously using a climbing formwork system.
[0030] By adopting the above technical solution, the construction of the next column section can be carried out simultaneously during the construction of the diaphragm. There is no need to remove and reinstall the inner formwork of the climbing formwork system when constructing the diaphragm, which improves the smoothness of construction and shortens the construction cycle.
[0031] In summary, this application includes at least one of the following beneficial technical effects:
[0032] 1. There is no need to remove and reinstall the inner formwork of the climbing formwork system, simplifying operation and improving construction smoothness;
[0033] 2. Reduce operational steps, shorten construction period, and lower construction costs;
[0034] 3. The next column section can be constructed simultaneously with the pouring of the diaphragm, thereby improving construction efficiency. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the state during the construction of the transverse diaphragm in a rapid construction method for thin-walled hollow piers according to an embodiment of this application.
[0036] Figure 2 This is a schematic diagram of the outer and inner formwork of the climbing formwork system during the construction of the column section in a rapid construction method for a thin-walled hollow pier diaphragm according to an embodiment of this application.
[0037] Figure 3 This is a schematic diagram of the support system between the construction platform and the hanging formwork in a rapid construction method for thin-walled hollow pier diaphragms according to an embodiment of this application.
[0038] Explanation of reference numerals in the attached drawings: 1. Climbing formwork system; 11. Outer formwork; 12. Inner formwork; 2. Lifting mechanism; 3. Construction platform; 4. Hanging formwork; 41. Inclined plate; 42. Horizontal plate; 43. Side formwork; 5. Inspection port; 6. Diaphragm; 61. Reinforcing section; 7. Column section; 8. Support rod; 9. Horizontal hydraulic cylinder. Detailed Implementation
[0039] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0040] This application discloses a rapid construction method for the transverse diaphragm 6 of a thin-walled hollow pier. The method includes steps such as foundation construction, assembly of the climbing formwork system 1, pouring of the column section 7, moving of the climbing formwork system 1, installation of the formwork 4 for the transverse diaphragm 6, rebar tying, and concrete pouring. Through a series of orderly construction steps, the frequent disassembly and reassembly of the inner formwork 12 of the climbing formwork system 1, as in traditional construction, is avoided, thus improving construction smoothness and shortening the construction cycle. This is because the entire construction process is carried out in a reasonable sequence, reducing unnecessary operational steps and enabling more efficient construction. The specific steps are as follows:
[0041] S1: In the foundation section construction steps, the foundation must first be treated. Surveying instruments are used to determine the accurate location and elevation of the foundation section, ensuring the bearing capacity of the foundation meets requirements. Next, the formwork for the foundation section is erected. Steel or wooden formwork can be used, selecting the appropriate material based on the actual situation. The formwork installation must be firm and dimensionally accurate. Then, the concrete for the foundation section is poured. The concrete must be mixed according to the designed mix ratio, transported to the construction site using a concrete mixer truck, and then pumped into the formwork. During pouring, a vibrator is used for thorough compaction to ensure the concrete's density. The reinforcing bars for column section 7 are tied at the top of the foundation section. The type, specifications, and quantity of the reinforcing bars must meet design requirements, and the tying of the reinforcing bars must comply with relevant building codes, ensuring accurate spacing. In actual construction, the type and specifications of the reinforcing bars can be adjusted according to specific circumstances, but it must ensure that they meet the structural stress requirements. Then, the reinforcing bars for column section 7 are tied at the top of the foundation section, preparing for the construction of the first column section 7.
[0042] S2: Assembly steps of climbing formwork system 1: First, transport all components of climbing formwork system 1 to the construction site for cleaning and inspection to ensure that the components are free from damage, deformation, or other problems. Then assemble climbing formwork system 1. Climbing formwork system 1 generally consists of an outer mold 11 and an inner mold 12. The outer mold 11 is used to shape the external form of column segment 7, while the inner mold 12 is used to control the internal dimensions of column segment 7. The assembly of the outer mold 11 and the inner mold 12 must ensure a firm connection and that the dimensional accuracy meets the requirements. In this embodiment, the inner mold 12 is divided into multiple mold units, each with a set of horizontal hydraulic cylinders for telescopic drive, to achieve the positioning and demolding of the inner mold 12.
[0043] Next, install the liftable construction platform 3 and the liftable hanging formwork 4 within the climbing formwork system 1. The construction platform 3 can be made of steel structure, possessing sufficient strength and stability. The liftability can be achieved through a hydraulic system or a lifting mechanism 2 such as an electric hoist. For the hydraulic system, ensure the cleanliness and stable pressure of the hydraulic oil; for the electric hoist, ensure the normal operation of the motor and reliable braking. After installation, test the lifting function of the construction platform 3 to ensure it can operate smoothly at different heights. Finally, hoist the climbing formwork system 1 to the top of the foundation section using a crane. During hoisting, maintain the balance and stability of the climbing formwork system 1. After positioning, secure it to ensure accurate placement. In some special cases, other types of lifting devices can also be used, as long as they can meet the lifting requirements of the construction platform 3.
[0044] S3: Column Segment 7 Pouring Steps. Column segment 7 is poured on top of the foundation segment using climbing formwork system 1. Before pouring, carefully check that the climbing formwork system 1 is securely installed, all connections are tight, the reinforcement arrangement meets requirements, and the concrete cover thickness is accurate. Concrete pouring should be done in layers. The thickness of each layer should be determined based on the type of concrete and the performance of the vibration equipment, generally controlled at around 300-500mm. A concrete pump can be used to deliver the concrete to the pouring location. During pouring, vibration is required to remove air bubbles from the concrete. An immersion vibrator can be used for vibration. The vibration time and frequency should be determined based on the concrete mix proportions and pouring thickness. Generally, the vibration time at each point is 20-30 seconds, until the concrete surface no longer settles, no more air bubbles appear, and a layer of cement paste forms on the surface.
[0045] S4: Moving steps of climbing formwork system 1: After the first section of column segment 7 is poured, wait for the concrete to reach a certain strength, which can be determined by the test results of concrete test blocks. Then continue to tie the reinforcing bars for the next section of column segment 7. The connection methods for the reinforcing bars can be welding, mechanical connection, etc., and the quality of the connection must be ensured. Next, demolding of climbing formwork system 1: First, loosen the connecting parts between climbing formwork system 1 and the poured column segment 7, and then use the lifting device to lift climbing formwork system 1 a certain distance to separate it from the poured column segment 7. Then continue to lift climbing formwork system 1 to position it at the next construction position of column segment 7. After positioning, check the position and verticality of climbing formwork system 1 again to ensure that it meets the requirements.
[0046] S5: When preparing to construct column segment 7 at the location of diaphragm 6, first tie the reinforcing bars of column segment 7 at the location of diaphragm 6, and pre-install the reinforcing bar embedded parts for diaphragm 6 and the pre-installed parts for formwork 4. The binding of the reinforcing bars must ensure the accurate positioning of the embedded parts. Construction platform 3 provides a stable operating platform for the installation of formwork 4 and the binding of reinforcing bars. Additionally, construction personnel can use construction platform 3 to transfer to the surface of formwork 4 for reinforcing bar binding and the installation and fixing of formwork 4. Formwork 4 is mainly stabilized using an electric hoist with lifting function in climbing formwork system 1. The embedded reinforcing bars must be firmly fixed to the reinforcing bars, which can be done by welding or binding to ensure no displacement during concrete pouring. Then, climbing formwork system 1 is positioned and pouring is carried out, following the same pouring steps as column segment 7. After pouring is completed, climbing formwork system 1 is demolded, and then lifted to move it from the location of diaphragm 6 and position it at the next column segment 7 construction location.
[0047] S6: Installation steps for the diaphragm 6 formwork 4: Lower the construction platform 3 and the diaphragm 6 formwork 4 from the climbing formwork system 1. Use a lifting device to slowly lower the construction platform 3 and the diaphragm 6 formwork 4, carefully observing their descent speed and balance during the lowering process. Position the construction platform 3 and the diaphragm 6 formwork 4 at the construction location of the diaphragm 6. After positioning, adjust to ensure the accurate placement of the formwork 4. Fixing can be done using bolt connections, welding, etc., to ensure the stability of the formwork 4. The diaphragm 6 formwork 4 can be made of wood or steel, customized according to the size and shape of the diaphragm 6. During installation, ensure the accurate positioning of the formwork 4 and its tight connection with the column section 7.
[0048] S7: Rebar Binding Steps. Install the reinforcing bars into the embedded parts of the transverse diaphragm 6 and complete the reinforcing bar binding and fixing operation. The connection and binding of the reinforcing bars must meet the relevant specifications to ensure a firm connection between the reinforcing bars. The formwork 4 for the transverse diaphragm 6 is positioned and fixed using the embedded parts of the formwork 4. The positioning must be accurate and the fixing reliable to ensure that the position and dimensions of the transverse diaphragm 6 meet the design standards. After binding is completed, the construction personnel disconnect the electric hoist from the formwork 4, retrieve the electric hoist, and then all construction personnel return to the construction platform 3 to carry out subsequent construction operations.
[0049] S8: Concrete pouring steps: Pour concrete at the construction location of diaphragm 6 to form diaphragm 6. The concrete pouring should be uniform and continuous to avoid quality problems such as cold joints. During the pouring process, the concrete should be vibrated to ensure its compactness. The vibration method is the same as the pouring steps for column section 7.
[0050] The implementation principle of this embodiment is as follows: By rationally arranging the construction steps, the construction method of this embodiment avoids the frequent disassembly and assembly of the inner formwork 12 of the climbing formwork system 1 in traditional construction, reducing cumbersome steps in the construction process and improving the smoothness of construction. The entire construction process is carried out in a certain sequence, with each step closely connected, enabling efficient construction, thereby shortening the construction cycle, reducing construction costs, and improving construction quality. This provides a more efficient and reliable construction solution for the construction of thin-walled hollow piers.
[0051] In this embodiment, the partition plate 6 hanging mold 4 has a pre-reserved opening in the middle, through which the construction platform 3 can pass. The edge of the opening is surrounded by a side template 43 for the inspection port 5. After the partition plate 6 is cast and formed, the inspection port 5 is formed in the middle of the partition plate 6, so that the construction platform 3 can be easily moved out through the inspection port 5 after the construction is completed.
[0052] The diaphragm 6 and the formwork 4 include a horizontal plate 42 and an inclined plate 41 disposed around the periphery of the horizontal template. An opening is located in the middle of the horizontal plate 42. The inclined plate 41 extends downwards at an angle towards the inner wall of the column section 7. After the diaphragm 6 is formed, a chamfered reinforcement 61 is formed at the bottom of the periphery of the diaphragm 6. The reinforcement 61 improves the connection strength between the diaphragm 6 and the column section 7, enhancing the stability of the structure.
[0053] The construction platform 3 is positioned below the formwork 4 of the transverse diaphragm 6, and a support system is constructed between the construction platform 3 and the bottom of the formwork 4 to support the bottom of the formwork 4. The support system between the construction platform 3 and the bottom of the formwork 4 uses detachable support rods 8. Several support rods 8 support the outer side of the inclined plate 41, and several support rods 8 support the bottom of the horizontal plate 42. During the installation of the support rods 8, it is essential to ensure their verticality and secure connection so that they can evenly bear the weight of the formwork 4. After the transverse diaphragm 6 is poured, the support rods 8 below the formwork 4 are disassembled and recycled. Disassembly must be carried out in a specific order to avoid damage to the formwork 4 and other structures. This support system ensures the stability of the formwork 4 during concrete pouring, and the detachable design facilitates the reuse of the support rods 8.
[0054] The climbing formwork system 1 is equipped with a liftable temporary suspended platform. During the rebar tying process, construction workers are lowered onto the hanging formwork 4 via the temporary suspended platform to perform the rebar tying work on the transverse diaphragm 6. The temporary suspended platform also provides a stable operating platform for the installation of the hanging formwork 4, allowing construction workers to install and secure it. The temporary suspended platform must ensure the reliability of its safety devices, such as safety belts and safety locks. Before use, the temporary suspended platform must be inspected and tested to ensure smooth lifting and reliable braking. The temporary suspended platform provides convenient access for construction workers, improving construction safety and efficiency.
[0055] While the diaphragm 6 is being poured, the next column segment 7 is also being constructed simultaneously via the climbing formwork system 1. During this simultaneous construction, the construction sequence and timing must be carefully planned to avoid mutual interference. For example, the reinforcement binding of the diaphragm 6 can be carried out first, followed by the reinforcement binding of the next column segment 7, and then the concrete pouring of both the diaphragm 6 and the next column segment 7. This simultaneous construction method can further improve construction efficiency, fully utilize construction resources, and shorten the overall construction period.
[0056] This embodiment improves the structural performance of the diaphragm 6 through special design of the formwork 4 for the diaphragm 6, such as reserving openings and setting inclined plates 41 to form a reinforcing part 61. The support system ensures the stability of the formwork 4 during concrete pouring, and the detachable support rods 8 facilitate recycling. The use of temporary suspended scaffolds facilitates the operation of construction personnel and improves construction safety. The synchronous construction method effectively improves construction efficiency and further optimizes the construction scheme of the thin-walled hollow pier diaphragm 6, which has significant advantages over traditional construction methods and can better meet the needs of engineering construction.
[0057] 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 rapid construction method for thin-walled hollow pier diaphragms, characterized in that: Includes the following steps: S1: Construction of the foundation section, and binding of the steel bars of the column section (7) at the top of the foundation section; S2: Assemble the climbing formwork system (1), install the liftable construction platform (3) inside the climbing formwork system (1), and hoist the climbing formwork system (1) to the top of the foundation section; S3: Using the climbing formwork system (1), the column section (7) is poured on top of the foundation section; S4: After the first section of column segment (7) is poured, continue to tie the reinforcing bars of the next section of column segment (7), then demold the climbing formwork system (1), and continue to lift the climbing formwork system (1) so that the climbing formwork system (1) is in place at the next construction position of column segment (7). S5: Repeat S3 and S4 until the column section (7) at the construction position of the diaphragm (6) is ready to be constructed. First, tie the steel bars of the column section (7) at the position of the diaphragm (6), and reserve the steel bar embedded parts of the diaphragm (6) and the formwork (4) embedded parts. Then, the climbing formwork system (1) is in place and the pouring construction is carried out. After the pouring construction is completed, the climbing formwork system (1) is demolded. Then, the climbing formwork system (1) is lifted and moved out from the construction position of the diaphragm (6) and placed in place at the construction position of the next column section (7). S6: Lower the construction platform (3) and the diaphragm (6) formwork (4) from the climbing formwork system (1) so that the construction platform (3) and the diaphragm (6) formwork (4) are in place at the construction position of the diaphragm (6). The construction platform (3) is used to complete the installation and fixing of the formwork (4) of the diaphragm (6) around the formwork (4). S7: Install the reinforcing bars in the pre-embedded parts of the reinforcing bars of the diaphragm (6) and complete the binding and fixing of the reinforcing bars. The formwork (4) of the diaphragm (6) is positioned and fixed by the pre-embedded parts of the formwork (4). S8: Pour concrete at the construction location of the diaphragm (6) to form the diaphragm (6).
2. The rapid construction method for thin-walled hollow pier diaphragm according to claim 1, characterized in that: In S6, the middle of the partition plate (6) hanging mold (4) has a reserved opening, which allows the construction platform (3) to pass through. The edge of the opening is surrounded by a side template (43) for inspection opening (5). After the partition plate (6) in S8 is cast, the middle of the partition plate (6) forms an inspection opening (5), and the construction platform (3) moves upward through the inspection opening (5).
3. The rapid construction method for thin-walled hollow pier diaphragm according to claim 2, characterized in that: In S6, the diaphragm (6) hanging mold (4) includes a horizontal plate (42) and an inclined plate (41) arranged around the horizontal template. The opening is arranged in the middle of the horizontal plate (42). The inclined plate (41) extends downwards at an angle toward the inner wall of the column section (7). In S8, after the diaphragm (6) is formed, a reinforcing part (61) with a lower chamfer shape is formed at the bottom of the diaphragm (6).
4. The rapid construction method for thin-walled hollow pier diaphragm according to claim 3, characterized in that: In S6, the construction platform (3) is positioned below the hanging formwork (4) of the diaphragm (6), and a support system is constructed between the construction platform (3) and the bottom of the hanging formwork (4) to support the bottom of the hanging formwork (4).
5. The rapid construction method for thin-walled hollow pier diaphragm according to claim 4, characterized in that: In S6, the support system between the bottom of the construction platform (3) and the hanging formwork (4) adopts detachable support rods (8), and a plurality of the support rods (8) support the outside of the inclined plate (41) and the bottom of the horizontal plate (42).
6. The rapid construction method for thin-walled hollow pier diaphragm according to claim 5, characterized in that: After the diaphragm (6) is poured, the support rod (8) below the hanging mold (4) is disassembled and recycled.
7. A rapid construction method for a thin-walled hollow pier diaphragm according to claim 6, characterized in that: The climbing formwork system (1) is equipped with a liftable temporary sump. In S7, the construction workers are lowered onto the hanging formwork (4) via the temporary sump to carry out the reinforcement binding work of the diaphragm (6).
8. The rapid construction method for thin-walled hollow pier diaphragm according to claim 7, characterized in that: While the diaphragm (6) of S8 is being poured, the next column section (7) is also being constructed simultaneously through the climbing formwork system (1).