Formwork supporting structure for pouring circular column

Abstract

The utility model provides a formwork structure for pouring a circular column. The formwork structure comprises a cylindrical formwork body located in a supporting steel pipe frame set, and a steel reinforcement framework is assembled in the cylindrical formwork body; a gap between the steel reinforcement framework and the cylindrical formwork body is filled with a steel reinforcement protective layer. The cylindrical template body comprises a plurality of arc-shaped templates; any two adjacent arc-shaped templates are connected through a limiting slot structure; the device further comprises a plurality of hoop assemblies, and each hoop assembly is provided with an adjusting locking piece. In the application, the steel reinforcement framework and the steel reinforcement protective layer are used as inner supports of the cylindrical template body, so that deformation is avoided; the outer wall of the cylindrical formwork body is extruded and positioned through the multiple hoop assemblies and the supporting steel pipe frame sets, surface flatness errors caused by joint dislocation are avoided, operation is convenient and flexible, the cylindrical formwork can be repeatedly recycled, energy is saved, and the environment is protected; the construction quality is ensured while the construction progress is accelerated, and the working efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of cylindrical pouring in building construction, and particularly relates to a formwork structure for pouring circular columns. Background Art

[0002] Cylindrical columns are widely used in construction projects for their beauty and practicality. During the construction of cylindrical buildings, the role of the formwork structure is to provide effective support for the pouring construction of cylindrical columns and take into account aesthetics. Commonly used formwork structures are steel formwork and wooden formwork. Each has its own advantages. Steel formwork can provide effective support when pouring cylindrical columns, but the manufacturing cost of steel formwork is high and the opportunity for recycling is small, making its cost performance relatively low; moreover, the self-weight of steel formwork is too large, making hoisting difficult, thus increasing the construction cost and raising the safety requirements for construction technology; while wooden formwork has a low cost, but the traditional cylindrical wooden formwork system uses a lot of materials, and the formwork has flat joints, which are extremely prone to dislocation, thus affecting the appearance of the concrete cylinder obtained by pouring, and the surface flatness is poor after demoulding, and the overall formwork structure strength cannot meet the design requirements. Especially during the pouring process, vibrating the concrete is extremely likely to affect the stability of the formwork structure and also have an adverse impact on the quality of the shape of the poured cylindrical column. Utility Model Content

[0003] This application provides a formwork structure for pouring circular columns, which is relatively light in overall weight, has a tighter joint, ensures the construction quality, reduces costs, and improves work efficiency while accelerating the construction progress.

[0004] The formwork structure for pouring circular columns provided by this application includes: a cylindrical formwork body located in the support steel pipe frame group, and a steel bar framework is concentrically assembled inside the cylindrical formwork body;

[0005] The gap between the steel bar framework and the cylindrical formwork body is filled with a steel bar protective layer;

[0006] The cylindrical formwork body includes a plurality of arc-shaped templates that can be spliced to form a circle; among them,

[0007] Any two adjacent arc-shaped templates are connected through a limit slot structure;

[0008] The formwork structure for pouring circular columns further includes a plurality of hoop assemblies arranged at intervals along the height direction of the cylindrical formwork body, and each hoop assembly is provided with an adjusting and locking member.

[0009] In this application, a steel bar skeleton and a steel bar protective layer are used as the internal support of the cylindrical formwork body to prevent deformation; the limit slot structure makes the joints tighter. Multiple hoop assemblies and support steel pipe frames extrude and position the outer wall of the cylindrical formwork body, avoiding surface flatness errors caused by joint misalignment. It is convenient and flexible to operate, can be recycled multiple times, is energy-saving and environmentally friendly, and ensures the construction quality and improves work efficiency while accelerating the construction progress.

[0010] In a specific feasible implementation, each of the multiple arc-shaped formworks is a formwork made of plywood with a smooth inner wall. Using plywood made of wood or bamboo as the formwork has the characteristics of high strength, smooth surface, and high durability, facilitating the flatness of demoulding in the later stage, and can be recycled.

[0011] In a specific feasible implementation, the support steel pipe frame group includes: a peripheral support frame group with horizontal and vertical intersections, and an inner support frame group connected to the inside of the peripheral support frame group; among them,

[0012] The inner support frame group is distributed at intervals along the height direction of the cylindrical formwork body, and the inner support frame group fits and presses against the outer wall of the cylindrical formwork body. Using scaffold tubes to erect the peripheral support frame group and the inner support frame group around the cylindrical formwork body, the overall erection process is simple and forms a relatively effective support.

[0013] In a specific feasible implementation, the inner support frame group is horizontally connected to the peripheral support frame group through fasteners. The connection method is simple and reliable.

[0014] In a specific feasible implementation, when the number of the multiple arc-shaped formworks is two,

[0015] The two arc-shaped formworks are respectively a first semi-circular formwork and a second semi-circular formwork;

[0016] The radius of the first semi-circular formwork is the same as that of the second semi-circular formwork. The split design is adopted, which is simple and convenient to install, has a relatively light overall weight, and reduces the cumbersome hoisting process.

[0017] In a specific feasible implementation, the limit slot structure includes: pointed protrusions arranged at both ends of the first semi-circular formwork, and V-shaped grooves arranged at both ends of the second semi-circular formwork;

[0018] The two pointed protrusions are respectively inserted into the two V-shaped grooves in a one-to-one correspondence. The joint connection is tight, reducing the surface flatness error caused by misalignment.

[0019] In a specific feasible implementation, the steel bar framework is arranged along the height direction of the cylindrical formwork body, and a plurality of steel bar protective layers are circumferentially arranged around the periphery of the steel bar framework, realizing the internal support function for the cylindrical formwork body and preventing deformation.

[0020] In a specific feasible implementation, the distance between any two adjacent hoop assemblies up and down is 300 mm. Multiple-point circumferential clamping ensures the tightness of the joint.

[0021] In a specific feasible implementation, each hoop assembly includes: a flat steel hoop and connectors connected to both ends of the flat steel hoop;

[0022] The adjusting and locking member is a fastening screw threadedly connected between the two connectors. The fastening method is simple and convenient, realizing internal and external support and avoiding dislocation.

[0023] In a specific feasible implementation, the length of the flat steel hoop is less than the circumference of the cylindrical formwork body, providing a relatively wide fastening force and allowing corresponding adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The top view of the formwork structure for pouring circular columns provided by the embodiment of the present application;

[0025] Figure 2 The front view of the formwork structure for pouring circular columns provided by the embodiment of the present application;

[0026] Figure 3 The structural schematic diagram of the adjusting and locking member provided by the embodiment of the present application;

[0027] Figure 4 The structural schematic diagram of the first semi-circular formwork provided by the embodiment of the present application;

[0028] Figure 5 The structural schematic diagram of the second semi-circular formwork provided by the embodiment of the present application.

[0029] Reference Numerals in the Drawings:

[0030] The first semi-circular formwork - 1, the second semi-circular formwork - 2, the flat steel hoop - 3, the connector - 4, the fastening screw - 5, the joint - 6, the inner support frame group - 7, the outer support frame group - 8, the steel bar framework - 9, the steel bar protective layer - 10, the floor slab - 11, the tip protrusion - 12, the V-shaped groove - 13. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To make the objectives, technical solutions, and advantages of the present disclosure clearer and more understandable, the present disclosure will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0032] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of this specification should have the ordinary meanings understood by those of ordinary skill in the art to which this disclosure belongs. The terms "first", "second" and similar words used in one or more embodiments of this specification do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0033] To facilitate the understanding of the formwork structure for pouring circular columns provided in the embodiments of the present application, its application scenario will be described first. Circular columns are widely used in construction projects for their beauty and practicality. During the construction of circular column buildings, the role of the formwork structure is to provide effective support for the pouring construction of circular columns and take into account aesthetics. Commonly used formwork structures are steel formwork and wooden formwork. Each has its own advantages. Steel formwork can provide effective support when pouring circular columns, but the production cost of steel formwork is high and the opportunity for recycling is small, making its cost performance relatively low; moreover, the self-weight of steel formwork is too large, making hoisting difficult, thus increasing the construction cost and raising the safety requirements for construction technology; while wooden formwork has a low cost, but the traditional circular column wooden formwork system uses a large amount of materials, the formwork has flat joints, and it is very easy to produce misalignment, which will affect the appearance of the concrete circular column obtained by pouring. In addition, the surface flatness after demoulding is relatively poor, and the overall formwork structure strength cannot meet the design requirements. Especially during the pouring process, vibrating the concrete is very likely to affect the stability of the formwork structure and also have an adverse impact on the quality of the shape of the poured circular column. In view of this, the present application provides a formwork structure for pouring circular columns, which has a relatively light overall weight, closer joints, and while accelerating the construction progress, ensures the construction quality, reduces costs, and improves work efficiency.

[0034] Reference Figure 1 and Figure 2As shown in the figure, the formwork structure for pouring circular columns in the embodiments of the present application includes: a cylindrical formwork body located in the support steel pipe frame group; the support steel pipe frame group is arranged on the floor slab 11 of the floor, and formwork is carried out by connecting steel pipes with a diameter of 48 mm through fasteners. After formwork is completed, the cylindrical formwork body in the middle is protected. First, the position of the pouring circular column is located, and the steel bar skeleton 9 is vertically tied. After adding multiple steel bar protective layers 10 around the steel bar skeleton 9, the inner support process of the cylindrical formwork body is completed. Subsequently, the cylindrical formwork body is installed. After ensuring the verticality of the cylindrical formwork body, multiple hoop assemblies are tied around the outer circle of the cylindrical formwork body to bind the cylindrical formwork body. Subsequently, a support steel pipe frame group is erected with steel pipes. After ensuring that the verticality of the cylindrical formwork body and the tightness of the joint 6 meet the construction requirements, concrete is poured to complete the whole set of processes. In the later stage, maintenance and form removal are carried out to realize the recyclability of the cylindrical formwork body, and the flatness error of the surface of the cylindrical concrete caused by the dislocation of the formwork joint in the traditional process is eliminated.

[0035] Specifically, a steel bar protective layer 10 is filled in the gap between the steel bar skeleton 9 and the cylindrical formwork body; the steel bar skeleton 9 is arranged along the height direction of the cylindrical formwork body, and multiple steel bar protective layers 10 are arranged circumferentially around the steel bar skeleton 9. The inner support effect on the cylindrical formwork body is realized to prevent deformation. The steel bar protective layer 10 is made of concrete blocks or rubber blocks and is installed on the steel bar skeleton 9 at circumferential intervals, and it is ensured that the outer diameter of its outer circle is the same as the inner diameter of the cylindrical formwork body.

[0036] The cylindrical formwork body includes multiple arc-shaped templates that can be spliced to form a circle; among them, multiple arc-shaped templates are all templates made of plywood with a smooth inner wall. Using plywood made of wood or bamboo as the formwork has the characteristics of high strength, smooth surface, and high durability, which is convenient for the flatness of form removal in the later stage and can be recycled and used. In a specific embodiment of the present application, in combination with Figure 4 and Figure 5 As shown in the figure, the number of multiple arc-shaped templates is two, and the two arc-shaped templates are the first semi-circular template 1 and the second semi-circular template 2 respectively; the radii of the first semi-circular template 1 and the second semi-circular template 2 are the same. Adopting a split design, the installation is simple and convenient, the overall weight is lighter, and the cumbersome hoisting process is reduced. The limit slot structure includes: tip protrusions 12 arranged at both ends of the first semi-circular template 1, and V-shaped grooves 13 arranged at both ends of the second semi-circular template 2; the two tip protrusions 12 are inserted into the two V-shaped grooves 13 in a one-to-one correspondence. The joint 6 is tightly connected, reducing the surface flatness error caused by dislocation.

[0037] In the application, it is preferred that the number of multiple arc-shaped templates is two. Of course, it does not exclude that the number of multiple arc-shaped templates is three or four. When setting three or four arc-shaped templates to be spliced into a circle, the limit slot structure is also used to complete the connection of the joint 6.

[0038] Continue to refer to Figure 1 and Figure 3 In this application, the formwork support structure for pouring circular columns further includes a plurality of hoop assemblies arranged at intervals along the height direction of the cylindrical formwork body, and an adjustment and locking member is provided on each hoop assembly. Specifically, the distance between any two adjacent hoop assemblies above and below is 300 mm. Multi-point circumferential clamping ensures the tightness of the joint 6. After checking that the joint 6 and the perpendicularity are qualified, install a hoop assembly 200 - 400 mm below the top of the column of the cylindrical formwork body, install a hoop assembly 200 - 400 mm above the bottom of the column of the cylindrical formwork body, and install a plurality of hoop assemblies at intervals not exceeding 3000 mm along the height direction in the middle.

[0039] Each of the hoop assemblies includes: a flat steel hoop 3 and connectors 4 connected to both ends of the flat steel hoop 3; the length of the flat steel hoop 3 is less than the circumference of the cylindrical formwork body. In a specific embodiment of this application, the height of the circular column to be poured is 3.2 m, and the diameter of the circular column is 500 mm. After formwork support on the floor slab bottom 11, concrete is poured, and after the concrete solidifies, it is demolded to form a circular column with good support performance and beauty. When pouring a circular column with a diameter of 500 mm, the length of the flat steel hoop 4 is 1560 mm, providing a relatively wide fastening force and can be adjusted accordingly. Select cold-drawn flat steel with a thickness of 2 mm and a width of 30 mm as the flat steel hoop 3, and open through holes on the connectors 4 at both ends. The adjustment and locking member is a fastening screw 5 threadedly connected between the two connectors 4. After the fastening screw 5 passes through the through holes on the connectors 4 at both ends, through the locking nut, the joint 6 of the cylindrical formwork body is tightened during the continuous locking process. The fastening method is simple and convenient, realizing internal and external support and avoiding misalignment.

[0040] In addition, after checking that the perpendicularity of the cylindrical formwork body and the joint 6 meet the pouring requirements, a support steel pipe frame group is erected on the periphery of the cylindrical formwork body. The support steel pipe frame group includes: an outer support frame group 8 with horizontal and vertical intersections, and an inner support frame group 7 connected to the inside of the outer support frame group 8; among them, the inner support frame group 7 is distributed at intervals along the height direction of the cylindrical formwork body, and the inner support frame group 7 fits and presses against the outer wall of the cylindrical formwork body. Use scaffolding pipes to erect the outer support frame group 8 and the inner support frame group 7 on the periphery of the cylindrical formwork body. The overall erection process is simple, forming a relatively effective support. The inner support frame group 7 is horizontally connected to the outer support frame group 8 through fasteners. The connection method is simple and reliable. Then pour concrete. After coagulation and curing, it is gradually removed in the reverse order of installation, with higher overall recyclability and ensuring the construction quality.

[0041] In this application, the steel bar framework 9 and the steel bar protective layer 10 are used as the internal supports of the cylindrical formwork body to avoid deformation; the limit slot structure makes the joint 6 tighter, and multiple hoop assemblies and support steel pipe frames extrude and position the outer wall of the cylindrical formwork body, avoiding the surface flatness error caused by joint misalignment. It is convenient and flexible to operate, and can be recycled multiple times, saving energy and the environment. While accelerating the construction progress, it ensures the construction quality and improves work efficiency.

[0042] In summary, the formwork structure provided by this application can not only provide effective support and take into account aesthetics, but also has a relatively light self-weight compared with traditional steel forms, is convenient for hoisting, has relatively low construction costs and requirements for construction technology safety, has good formwork stability, and the formed cylindrical shape is beautiful, avoiding affecting the quality level due to the formwork structure. It can be adapted to the construction of cylinders with different diameters and realizes recycling.

[0043] The commonly used formwork structures are steel forms and wooden forms. Each has its own advantages. Steel forms can provide effective support and are beautiful when pouring cylinders, but the production cost of steel forms is high and the opportunity is few, making their cost performance relatively low; and the self-weight of steel forms is too large, making hoisting difficult, thus increasing construction costs and raising the requirements for construction technology safety; while wooden forms have low costs, but the traditional cylindrical wooden formwork system uses a lot of materials, and the formwork has flat joints, which are extremely prone to misalignment, thus affecting the appearance of the concrete cylinder obtained by pouring, and the surface flatness is relatively poor after demoulding, and the overall formwork structure strength cannot meet the design requirements. Especially during the pouring process, vibrating the concrete is extremely likely to affect the stability of the formwork structure and also have an adverse impact on the quality of the formed cylindrical shape and other aspects.

[0044] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary, and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; under the concept of the present disclosure, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of one or more embodiments of the present specification as above, which are not provided in detail for the sake of brevity.

[0045] In addition, for simplicity of explanation and discussion, and in order not to make one or more embodiments of this specification difficult to understand, well-known power / ground connections of other components may or may not be shown in the provided drawings. Further, the devices may be shown in block diagram form in order to avoid making one or more embodiments of this specification difficult to understand, and this also takes into account the fact that details regarding the implementation of these block diagram devices are highly dependent on the platform on which one or more embodiments of this specification are to be implemented (i.e., these details should be completely within the understanding of those skilled in the art). In cases where specific details have been set forth to describe exemplary embodiments of the present disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations of these specific details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0046] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification shall be included within the scope of protection of this disclosure.

Claims

1. A formwork structure for casting a circular column, comprising a cylindrical formwork body located in a supporting steel pipe frame group, wherein a steel reinforcement skeleton is concentrically assembled inside the cylindrical formwork body; characterized in that: The gap between the steel bar skeleton and the cylindrical formwork body is filled with a steel bar protective layer; The cylindrical template body comprises a plurality of arc-shaped templates that can be spliced ​​together to form a circle; wherein, Any two adjacent arc-shaped templates are connected via a limiting slot structure; The formwork structure for casting a circular column also includes a plurality of hoop assemblies arranged at intervals along the height direction of the cylindrical formwork body, and each of the hoop assemblies is provided with an adjusting locking piece.

2. The formwork structure for casting a circular column according to claim 1, characterized in that: The multiple arc-shaped templates are all templates made of plywood with smooth inner walls.

3. The formwork structure for casting a circular column according to claim 1, characterized in that: The supporting steel pipe frame group includes: a peripheral supporting frame group staggered horizontally and vertically, and an inner supporting frame group connected to the peripheral supporting frame group; wherein, The inner support frame groups are distributed at intervals along the height direction of the cylindrical template body, and the inner support frame groups are pressed against the outer wall of the cylindrical template body.

4. The formwork structure for casting a circular column according to claim 3, characterized in that: The inner support frame group is horizontally connected to the outer support frame group through fasteners.

5. The formwork structure for casting a circular column according to claim 2, characterized in that: When the number of the plurality of arc-shaped templates is two, The two arc-shaped templates are respectively a first semicircular template and a second semicircular template; The radius of the first semicircular template is the same as the radius of the second semicircular template.

6. The formwork structure for casting a circular column according to claim 5, characterized in that: The limiting slot structure includes: pointed protrusions arranged at both ends of the first semicircular template, and V-shaped grooves arranged at both ends of the second semicircular template; The two pointed end protrusions are inserted into the two V-shaped grooves in a one-to-one correspondence.

7. The formwork structure for casting a circular column according to claim 5, characterized in that: The steel bar skeleton is arranged along the height direction of the cylindrical formwork body, and a plurality of steel bar protective layers are arranged circumferentially around the outer periphery of the steel bar skeleton.

8. The formwork structure for casting a circular column according to claim 1, characterized in that: The distance between any two adjacent clamp assemblies is 300 mm.

9. The formwork structure for casting a circular column according to claim 8, characterized in that: Each clamp assembly comprises: a flat steel clamp and connecting pieces connected at both ends of the flat steel clamp; The adjusting locking member is a fastening screw threadedly connected between the two connecting members.

10. The formwork structure for casting a circular column according to claim 9, characterized in that: The length of the flat steel hoop is smaller than the circumference of the cylindrical formwork body.

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