A cylinder template, support system and construction method

Abstract

The application discloses a cylinder template, a supporting system and a construction method, which comprise a template unit and a center supporting and releasing mechanism, wherein the template unit is provided in plurality, the plurality of template units are surrounded to form a cylinder with a rectangular horizontal section, and a sliding assembly is arranged at the diagonal of the rectangular cylinder; the center supporting and releasing mechanism comprises a driving shaft, the driving shaft is arranged at the axis of the rectangular cylinder, a plurality of supporting units are arranged along the axis of the driving shaft, the supporting units are hinged with the sliding assembly, and when the driving shaft drives the supporting units, the supporting units make the template units converge to the center of the rectangular cylinder or expand outward; the application improves the working efficiency of the cylinder template supporting, optimizes the economy and environmental protection, and guarantees the concrete pouring quality through the modular and integrated cylinder template.

Description

Technical Field

[0001] This invention relates to the field of formwork technology in building construction, specifically to a cylindrical formwork, support system, and construction method. Background Technology

[0002] Traditional support systems are generally used in building construction. While these systems are versatile and experience-based, they still have many drawbacks. For example, incomplete formwork assembly and cumbersome installation lead to low efficiency; significant material waste results in poor economic and environmental performance; excessive material usage hinders on-site construction; and numerous formwork joints lead to poor concrete pouring quality. Traditional support systems are also poorly suited for the construction of numerous cylindrical structures in radioactive solid waste temporary storage facilities. Therefore, it is necessary to design a new, more targeted support system. Summary of the Invention

[0003] To address the challenges of constructing numerous cylindrical structures for radioactive solid waste temporary storage facilities in nuclear power plant projects, this invention aims to provide a cylindrical formwork, support system, and construction method. By employing modular and integrated cylindrical formwork, it improves the efficiency of formwork erection, optimizes economic efficiency and environmental friendliness, and ensures the quality of concrete pouring.

[0004] To achieve the above-mentioned technical objectives, the present invention is implemented through the following technical solution:

[0005] A cylindrical template, comprising:

[0006] Template units, wherein multiple template units are provided, and the multiple template units are enclosed to form a cylindrical body with a rectangular horizontal cross section, and sliding components are provided at the diagonal of the rectangular cylindrical body;

[0007] A demolding center adjustment mechanism is provided, which includes a drive shaft located at the axis of the rectangular cylinder. The drive shaft has multiple support units along its own axis, and the support units are hinged to the sliding assembly. When the drive shaft drives the support units, the support units cause the template units to retract toward the center of the rectangular cylinder or expand outward.

[0008] In this solution, multiple modular template units are used to enclose and form a cylindrical body, thereby saving time in template assembly and installation. At the same time, the template units can be adjusted through the support and demolding center adjustment mechanism to complete the three states of assembly, support and demolding, thereby improving the efficiency of cylindrical template support. Moreover, the modular cylindrical template is also conducive to material turnover and maintenance, reducing material damage during the support and demolding process.

[0009] As a further technical solution for the cylindrical template, the sliding assembly includes a steel corner template and a sliding support;

[0010] The steel angle template is located at the opposite corner of the rectangular cylinder, and the two right-angled ends of the steel angle template are movably connected to the template unit respectively.

[0011] The horizontal cross-section of the sliding support is an isosceles right triangle. The two right-angled sides of the sliding support are movably connected to the adjacent template unit, the right angle of the sliding support is rigidly connected to the center of the steel angle template, and the midpoint of the hypotenuse of the sliding support is hinged to the support unit.

[0012] In this scheme, the two right-angle ends of the steel angle template are movably connected to the template unit, and the two right-angle sides of the sliding support are movably connected to the adjacent template unit. The sliding support is rigidly connected to the steel angle template. When the support unit is driven, the two right-angle sides of the sliding support slide along the edge of the template unit and drive the steel angle template and the template unit to close or unfold towards the center, thereby completing the three states of the cylindrical template from assembly, support and demolding.

[0013] As a further technical solution for the cylindrical template, the outer sides of the two right-angle ends of the steel angle template are provided with limiting portions extending toward the template unit, and the outer end of the template unit near the steel angle template is provided with a limiting groove matching the limiting portions.

[0014] In this scheme, when the cylindrical formwork is in the formwork support state, the cooperation between the limiting part and the limiting groove causes the joint between the formwork unit and the steel corner formwork to shift outward, thereby reducing the impact of the joint on the concrete pouring quality.

[0015] As a further technical solution for the cylindrical template, positioning holes are provided at the two right-angle ends of the steel angle template, and positioning posts matching the positioning holes are provided on the outer end of the template unit opposite to the steel angle template.

[0016] In this scheme, when the cylindrical formwork is transformed from three states—assembly, support, and demolding—the positioning holes and positioning columns will guide and position the relative movement of the steel corner formwork and the formwork unit, thereby improving the efficiency of the cylindrical formwork support work.

[0017] As a further technical solution for the cylindrical template, the diameter of the positioning hole is larger than the diameter of the positioning post, or the positioning hole is an elliptical rectangle.

[0018] In this scheme, since the template unit will retract inward, that is, move inward relative to the two right-angle ends of the steel angle template, in order to enable the positioning column to continuously provide guidance and positioning in this relative movement, the diameter of the positioning hole is larger than the diameter of the positioning column, or the positioning hole is an elliptical rectangle, and the major axis of the elliptical rectangle is the direction of movement of the positioning column.

[0019] As a further technical solution for the cylindrical template, a slider is provided on the inner end of each adjacent template unit, and the two right-angled sides of the sliding support are respectively provided with grooves that match the slider.

[0020] In this design, the slider is a T-shaped slider, which ensures that the sliding support will not fall off during the sliding process, thus improving the reliability of the device.

[0021] As a further technical solution for the cylindrical template, the support unit includes an upper pin, a support arm, and a lower pin;

[0022] Both the upper pin and the lower pin are threadedly connected to the drive shaft, and the threads of the upper pin and the lower pin rotate in opposite directions.

[0023] The support arms are provided in at least two pairs, one pair of which is hinged to the sliding component and the upper pin, and the other pair of which is hinged to the sliding component and the lower pin.

[0024] In this design, the upper and lower pins are spaced apart on the drive shaft, and the threads of the upper and lower pins rotate in opposite directions. When the drive shaft is rotated, the upper and lower pins can move towards or away from each other, thereby driving the support arm to retract or expand, achieving the purpose of the cylindrical template in three states: assembly, support, and demolding.

[0025] A cylindrical template support system employs a cylindrical template as described in any of the above technical solutions. The cylindrical templates are arrayed in a matrix, and adjacent cylindrical templates are connected by a template adjuster, which can adjust the shape of adjacent cylindrical templates.

[0026] In this scheme, the cylindrical formwork can be connected by one or more formwork adjusters. After the cylindrical formwork is arrayed in a matrix, the spacing and verticality of adjacent cylindrical formwork can be adjusted by the formwork adjusters to complete the formwork support. The integrated support formwork of the cylindrical formwork can also improve the quality of concrete pouring. At the same time, it is highly targeted for the construction of a large number of cylindrical structures in the radioactive solid waste temporary storage facility and can meet the site requirements.

[0027] As a further technical solution to the cylindrical template support system, multiple sets of template adjusters are connected between adjacent cylindrical templates, and the template adjuster includes an adjusting cylinder and an adjusting shaft;

[0028] The adjusting cylinders are arranged in pairs, and the pairs of adjusting cylinders are respectively connected to the cylinder template. The two ends of the adjusting shaft are respectively matched with the pairs of adjusting cylinders.

[0029] In this design, the adjusting shaft is a screw structure that is threadedly connected to the adjusting cylinder on the adjacent cylindrical template, thereby adjusting the spacing and perpendicularity of the adjacent cylindrical templates through the threaded connection.

[0030] This invention also provides a construction method for a cylindrical formwork support system, which adopts the cylindrical formwork support system described in the above technical solution. The specific construction steps are as follows:

[0031] S1. Clean the base layer, mark the bottom and top of the structure, and determine the position of the cylindrical formwork;

[0032] S2. Hoist the cylindrical formwork support system that meets the working conditions to the position determined in step S1;

[0033] S3. Connect all the cylindrical templates using the template adjuster;

[0034] S4. The shape of the cylindrical template is corrected by adjusting the template adjuster;

[0035] S5. Reinforce the bottom of the corrected cylindrical formwork by driving in steel bars to complete the erection of the cylindrical formwork support system.

[0036] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0037] 1. The present invention provides a cylindrical template, comprising template units and a support and demolding center adjustment mechanism. A cylindrical body is formed by enclosing multiple modular template units, thereby saving time in template assembly and installation. At the same time, the template units can be adjusted through the support and demolding center adjustment mechanism to complete the three states of assembly, support and demolding, thereby improving the efficiency of cylindrical template support work. Moreover, the modular cylindrical template is also conducive to material turnover and maintenance, reducing material damage during the support and demolding process.

[0038] 2. The present invention also provides a cylindrical formwork support system, wherein the cylindrical formwork can be connected by one or more formwork adjusters. When the cylindrical formwork is arrayed in a matrix, the spacing and verticality of adjacent cylindrical formwork can be adjusted by the formwork adjusters. Furthermore, the integrated support formwork of the cylindrical formwork can also improve the quality of concrete pouring. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This invention provides a schematic diagram of the elevation structure of a cylindrical template in the assembly state.

[0041] Figure 2A partial elevation view of a cylindrical template in the assembly state is provided by the present invention.

[0042] Figure 3 This is a schematic diagram of the planar structure of a cylindrical template in the assembly state provided by the present invention;

[0043] Figure 4 This is a structural schematic diagram of the support unit;

[0044] Figure 5 A schematic diagram of the elevation structure of a cylindrical template in the formwork support state provided by the present invention;

[0045] Figure 6 This invention provides a schematic diagram of the planar structure of a cylindrical template in the formwork support state.

[0046] Figure 7 A schematic diagram of the elevation structure of a cylindrical template in the demolding state provided by the present invention;

[0047] Figure 8 This is a schematic diagram of the planar structure of a cylindrical template in the demolding state provided by the present invention;

[0048] Figure 9 for Figure 3 A schematic diagram of the structure marked A in the middle;

[0049] Figure 10 for Figure 6 A schematic diagram of the structure marked B in the middle;

[0050] Figure 11 for Figure 8 A schematic diagram of the structure marked C;

[0051] Figure 12 A schematic diagram of the elevation structure of a cylindrical formwork support system in the formwork support state provided by the present invention;

[0052] Figure 13 A schematic diagram of the planar structure of a cylindrical template support system in the formwork support state provided by the present invention;

[0053] Figure 14 for Figure 13 A schematic diagram of the structure marked D in the middle.

[0054] The attached diagram shows the markings and corresponding component names:

[0055] 1-Turntable, 2-Demolding center adjustment mechanism, 3-Support unit, 4-Lifting lug, 5-Template unit, 6-Upper pin, 7-Support arm, 8-Lower pin, 9-Steel template, 10-Straight steel template, 11-Sliding component, 12-Drive shaft, 13-Steel angle template, 14-Limiting part, 15-Limiting groove, 16-Sliding support, 17-Slider, 18-Positioning column, 19-Positioning hole, 20-Wall, 21-Guide wall, 22-Template adjuster, 23-Adjusting cylinder, 24-Adjusting shaft, 25-Adjusting handle. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0057] Example 1

[0058] This embodiment 1 provides a cylindrical template, such as Figures 1-4 As shown, the device includes template units 5 and a demolding center adjustment mechanism 2. Four template units 5 are provided, forming a cylindrical body with a rectangular horizontal cross-section. Sliding components 11 are provided at the diagonal corners of the rectangular cylindrical body. The demolding center adjustment mechanism 2 includes a drive shaft 12, which is located at the axis of the rectangular cylindrical body. Multiple support units 3 are arranged along the drive shaft 12's axis. The support units 3 are hinged to the sliding components 11. When the drive shaft 12 drives the support units 3, the support units 3 cause the template units to retract towards the center of the rectangular cylindrical body or expand outwards, allowing the cylindrical template to complete the assembly (e.g., ...). Figure 1 ), formwork (such as) Figure 5 ), demolding (e.g.) Figure 7 The transition between the three states.

[0059] Please refer to Figure 2 and Figure 4 As shown, the support unit 3 includes an upper pin 6, a support arm 7, and a lower pin 8. Both the upper pin 6 and the lower pin 8 are threadedly connected to the drive shaft 12, and the threads of the upper pin 6 and the lower pin 8 rotate in opposite directions. At least two pairs of support arms 7 are provided. To improve the reliability of the support unit 3, four pairs of support arms 7 are provided in this embodiment. Two pairs of support arms 7 are hinged to the sliding assembly 11 and the upper pin 6 along the diagonal of the rectangular cylinder, and the other two pairs of support arms 7 are hinged to the sliding assembly 11 and the lower pin 8 along the diagonal of the rectangular cylinder. In this embodiment, the upper pin 6 and the lower pin 8 are spaced apart on the drive shaft 12. When the drive shaft 12 is rotated by the turntable 1, the upper pin 6 and the lower pin 8 can move towards each other or away from each other, thereby driving the support arm to retract or expand.

[0060] Please refer to the following: Figures 4-11As shown, the template unit 5 includes a steel template 9, a straight steel template 10 covering the outer surface of the steel template 9, and a lifting lug 4 set on the steel template 9. The sliding component 11 includes a steel angle template 13 and a sliding support 16. The steel angle template 13 is set at the diagonal of the rectangular cylinder. The horizontal cross section of the steel angle template 13 is an L-shaped shape with two symmetrical sides. The horizontal cross section of the sliding support 16 is an isosceles right triangle. The two right-angled ends of the steel angle template 13 are movably connected to the steel template 9, and the two right-angled sides of the sliding support 16 are movably connected to the adjacent steel angle template 13. The right angle of the sliding support 16 is rigidly connected to the center of the steel angle template 13, and the midpoint of the hypotenuse of the sliding support 16 is hinged to the support unit 3. When the support unit 3 retracts or expands towards the center of the rectangular cylinder, the two right-angled sides of the sliding support 16 slide along the inner side of the steel template 9, while driving the steel angle template 13 and the template unit 5 to close or expand towards the center, thereby completing the three states of the cylinder template from assembly, support, and demolding.

[0061] Because there will be joints between the steel angle formwork 13 and the formwork unit 5, which will affect the pouring quality, such as Figures 9-11 As shown, the two right-angle ends of the steel angle template 13 are provided with limiting parts 14 extending towards the template unit 5. The template unit 5 is provided with a limiting groove 15 matching the limiting part 14 near the outer end of the steel angle template 13. When the cylindrical template is in the formwork support state, the limiting part 14 and the limiting groove 15 are fully engaged, so that the outer side of the steel angle template 13 is flush with the outer side of the straight steel template 10 to form a support surface. Because the joint between the template unit 5 and the steel angle template 13 is offset to the outside, the contact area between the steel angle template 13 and the template unit 5 is increased, thereby improving the sealing effect and reducing the impact of the joint on the concrete pouring quality.

[0062] Meanwhile, in order to guide and position the relative movement of the steel angle template 13 and the template unit 5, positioning holes 19 are provided at the two right-angle ends of the steel angle template 13. Positioning posts 18 matching the positioning holes 19 are provided on the outer end of the template unit 5 opposite to the steel template 9. The diameter of the positioning hole 19 is larger than the diameter of the positioning post 18, or the positioning hole 19 is an elliptical rectangular hole, and the major axis of the elliptical rectangular hole is the direction of movement of the positioning post 18. When the cylindrical template is converted from the three states of assembly, formwork support, and demolding, the positioning hole 19 and the positioning post 18 will guide and position the relative movement of the steel angle template 13 and the template unit 5, thereby improving the efficiency of the cylindrical template support work.

[0063] In addition, to ensure that the sliding support 16 will not fall off during the sliding process, T-shaped sliders 17 are provided on the inner ends of adjacent template units 5, and grooves matching the sliders 17 are provided on the two right-angled sides of the sliding support 16.

[0064] The following is a description of a cylindrical template provided in Embodiment 1 during assembly (e.g.) Figure 1), formwork (such as) Figure 5 ), demolding (e.g.) Figure 7 The operation process in the three states:

[0065] Assembly state: The rotating turntable 1 drives the demolding center adjustment mechanism 2 to reduce the distance between the upper pin 6 and the lower pin 8, which drives the support arm 7 to push the sliding support 16 and the steel corner template 13 to expand outward until the positioning column 18 and the positioning hole 19 are completely separated. This is the assembly state of the cylindrical template. In this state, the device can be assembled or disassembled.

[0066] Demolding state: After assembly, the rotating turntable 1 drives the demolding center adjustment mechanism 2 to increase the distance between the upper pin 6 and the lower pin 8, which drives the support arm 7 to pull the sliding support 16 and the steel corner template 13 to retract towards the center until the positioning post 18 and the positioning hole 19 are fully matched. This is the demolding state of the cylindrical template. This state is either the state before or after demolding.

[0067] Formwork support state: In the demolding state, the rotating turntable 1 drives the demolding center adjustment mechanism 2 to reduce the distance between the upper pin 6 and the lower pin 8, which in turn drives the support arm 7 to pull the sliding support 16 and the steel angle template 13 outward. When the limiting part 14 and the limiting groove 15 are completely in contact, it is the formwork support state of the cylindrical template. When this state is completed, formwork construction can be carried out.

[0068] Example 2

[0069] This embodiment 2 provides a cylindrical template support system, such as Figures 12-14 As shown, a cylindrical template from Example 1 is used. The cylindrical templates are arranged in a matrix array. The cylindrical templates can be connected by one or more template adjusters 22. When the cylindrical templates are arranged in a matrix array, for the construction of a large number of cylindrical structures in the radioactive solid waste temporary storage facility, the spacing and verticality of adjacent cylindrical templates can be adjusted by the template adjuster 22 to meet the on-site requirements.

[0070] Please refer to Figure 13 and Figure 14 As shown, the template adjuster 22 includes an adjusting cylinder 23 and an adjusting shaft 24. The adjusting cylinders 23 are arranged in pairs and have a screw structure. The paired adjusting cylinders 23 are respectively connected to the cylindrical template. The two ends of the adjusting shaft 24 are respectively threaded to the paired adjusting cylinders 23. The spacing and verticality of adjacent cylindrical templates can be adjusted by screwing them together.

[0071] Example 3

[0072] This embodiment 3 provides a construction method for a cylindrical formwork support system, using a cylindrical formwork support system from embodiment 2. This embodiment describes the formwork erection process after the reinforcement binding is completed on the construction site. The specific construction steps are as follows:

[0073] S1. Clean the base layer, mark the bottom and top of the structure, and determine the position of the cylindrical formwork;

[0074] S2. The cylindrical formwork support system that meets the working conditions is hoisted to the position determined in step S1. At this time, the cylindrical formwork support system is in the formwork support state. Meanwhile, for the guide wall 21 of the waste bin storage room, it can be adapted by replacing steel formwork 9 of different sizes to meet the working conditions.

[0075] S3. Connect all the cylindrical templates using template adjuster 22;

[0076] S4. The spacing and verticality of the cylindrical template are corrected by adjusting the template adjuster 22;

[0077] S5. Reinforce the bottom of the corrected cylindrical formwork by driving in steel bars to complete the erection of the cylindrical formwork support system. After the cylindrical formwork support system is erected, pour concrete into the gap between adjacent cylindrical formworks. After cooling and solidification, the required wall 20 is formed. Finally, rotate the turntable 1 to drive the demolding center adjustment mechanism 2 to increase the distance between the upper pin 6 and the lower pin 8 to complete the demolding state. Then, lift the cylindrical formwork support system out of the formed foundation pit as a whole to complete the construction.

[0078] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cylindrical template, characterized in that, include: Template unit (5), multiple template units (5) are provided, and multiple template units (5) are enclosed to form a cylindrical body with a rectangular horizontal cross section, and sliding components (11) are provided at the opposite corners of the rectangular cylindrical body. The sliding assembly (11) includes a steel angle template (13) and a sliding support (16); the steel angle template (13) is located at the diagonal of the rectangular cylinder, and the two right-angled ends of the steel angle template (13) are movably connected to the template unit (5); the horizontal cross-section of the sliding support (16) is an isosceles right triangle, and the two right-angled sides of the sliding support (16) are movably connected to the adjacent template unit (5), the right angle of the sliding support (16) is rigidly connected to the center of the steel angle template (13), and the midpoint of the hypotenuse of the sliding support (16) is used for hinge connection with the support unit (3); the steel angle template (13) The two right-angle ends are provided with limiting parts (14) extending towards the template unit (5), and the template unit (5) is provided with a limiting groove (15) matching the limiting part (14) on the outer end near the steel angle template (13); the two right-angle ends of the steel angle template (13) are provided with positioning holes (19), and the template unit (5) is provided with a positioning post (18) matching the positioning hole (19) on the outer end opposite to the steel angle template (13); the inner ends of adjacent template units (5) are provided with sliders (17), and the two right-angle sides of the sliding support (16) are respectively provided with grooves matching the sliders (17); The demolding center adjustment mechanism (2) includes a drive shaft (12), which is located at the axis of the rectangular cylinder and has multiple support units (3) along its own axis. The support unit (3) includes an upper pin (6), a support arm (7), and a lower pin (8). The upper pin (6) and the lower pin (8) are threadedly connected to the drive shaft (12), and the threads of the upper pin (6) and the lower pin (8) are in opposite directions. The support arm (7) is provided in at least two pairs, one pair of which is hinged to the midpoint of the hypotenuse of the sliding support (16) of the sliding assembly (11) and the upper pin (6), and the other pair of which is hinged to the midpoint of the hypotenuse of the sliding support (16) of the sliding assembly (11) and the lower pin (8). When the drive shaft (12) drives the support unit (3), the support unit (3) causes the template unit (5) to retract toward the center of the rectangular cylinder or expand outward.

2. The cylindrical template according to claim 1, characterized in that, The diameter of the positioning hole (19) is greater than the diameter of the positioning post (18), or the positioning hole (19) is an elliptical rectangle.

3. A cylindrical formwork support system, characterized in that, Using a cylindrical template as described in claim 1 or 2, the cylindrical templates are arrayed in a matrix, and adjacent cylindrical templates are connected by a template adjuster (22), which can adjust the shape of adjacent cylindrical templates.

4. The cylindrical template support system according to claim 3, characterized in that, Multiple sets of template adjusters (22) are connected between adjacent cylindrical templates. Each template adjuster (22) includes an adjusting cylinder (23) and an adjusting shaft (24). The adjusting cylinders (23) are arranged in pairs, and the paired adjusting cylinders (23) are respectively connected to the cylinder template. The two ends of the adjusting shaft (24) are respectively matched with the paired adjusting cylinders (23).

5. A construction method for a cylindrical formwork support system, characterized in that, The specific construction steps of the cylindrical formwork support system described in claim 3 are as follows: S1. Clean the base layer, mark the bottom and top of the structure, and determine the position of the cylindrical formwork; S2. Hoist the cylindrical formwork support system that meets the working conditions to the position determined in step S1; S3. Connect all the cylindrical templates using the template adjuster (22); S4. The shape of the cylindrical template is corrected by adjusting the template adjuster (22); S5. Reinforce the bottom of the corrected cylindrical formwork by driving in steel bars to complete the erection of the cylindrical formwork support system.

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