Circular foundation formwork structure

Abstract

The utility model relates to civil engineering technical field discloses a kind of circular foundation formwork structure, including concrete cushion, circular formwork and pull rod, circular formwork is located on concrete cushion, circular formwork is cylindrical, circular formwork includes two oppositely arranged arc-shaped wood formworks, and the both ends of one arc-shaped wood formwork are respectively connected with the both ends of another arc-shaped wood formwork one-to-one by connecting assembly, to form circular formwork, connecting assembly includes two connecting sleeves respectively fixed in the end of arc-shaped wood formwork, the outside of connecting sleeve is equipped with connecting plate, and the two connecting plates in connecting assembly are fixedly connected by connecting piece, pull rod is located in circular formwork, one end of pull rod penetrates one arc-shaped wood formwork and extends to outside, the other end of pull rod penetrates another arc-shaped wood formwork and extends to outside, and the both ends of pull rod are respectively equipped with tension nut, and tension nut is in abutment with the outside of arc-shaped wood formwork.The utility model is simple in construction, and structure is stable.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a circular foundation formwork structure. Background Technology

[0002] Circular foundations are a common type of foundation in civil and building engineering. They typically refer to foundation structures with a circular plan shape, used to transfer the load of the superstructure (such as columns, chimneys, storage tanks, wind turbine towers, etc.) to the foundation soil or rock. Formwork erection for circular foundations is a crucial step in construction, directly affecting the foundation's geometric dimensions, the quality of the concrete appearance, and construction safety. Currently, the formwork for circular foundations is generally erected using custom-made circular templates based on the foundation's diameter and height, with steel pipes used to support the external circular templates. Custom-made templates are expensive, and the steel pipes often cannot withstand the forces exerted by the concrete on the circular templates, easily leading to formwork bursting. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a circular foundation formwork structure that is easy to construct and has a stable structure.

[0004] To solve the above-mentioned technical problems, this utility model provides a circular foundation formwork structure, including a concrete pad, a circular template, and tie rods. The circular template is disposed on the concrete pad and is cylindrical. The circular template includes two opposing arc-shaped wooden templates. The two ends of one arc-shaped wooden template are respectively connected to the two ends of the other arc-shaped wooden template through connecting components to form the circular template. The connecting component includes two connecting sleeves respectively fitted and fixed to the ends of the arc-shaped wooden templates. The shape of the connecting sleeves is adapted to the shape of the ends of the arc-shaped wooden templates. A connecting plate is provided on the outer side of the connecting sleeve. The two connecting plates in the connecting component are oppositely disposed and fixedly connected by connectors. Multiple tie rods are provided. The tie rods are disposed inside the circular template. One end of the tie rod passes through one of the arc-shaped wooden templates and extends to the outside. The other end of the tie rod passes through the other arc-shaped wooden template and extends to the outside. Each end of the tie rod is provided with a tension nut, which abuts against the outer side of the arc-shaped wooden template.

[0005] As a preferred embodiment of this utility model, the connecting sleeve is provided with an arc-shaped groove that mates with the end of the arc-shaped wooden template. One end of the arc-shaped groove is an open end, and the other end of the arc-shaped groove is a closed end. The top surface of the connecting sleeve is flush with the top surface of the arc-shaped wooden template, and the bottom surface of the connecting sleeve is flush with the bottom surface of the arc-shaped wooden template.

[0006] As a preferred embodiment of this utility model, the top surface of the connecting plate is flush with the top surface of the arc-shaped wooden template, and the bottom surface of the connecting plate is flush with the bottom surface of the arc-shaped wooden template.

[0007] As a preferred embodiment of this utility model, the connecting plate is provided with a plurality of fixing holes arranged vertically at intervals, the fixing holes of the two connecting plates of the connecting assembly are aligned one by one, the connecting member includes a fixing bolt and a fixing nut, the fixing bolt passes through the two aligned fixing holes and is connected to the fixing nut.

[0008] As a preferred embodiment of this utility model, the connecting plate is provided with a clearance hole, and a locking steel bar is surrounded on the circular template. The locking steel bar passes through the clearance hole, and the two ends of the locking steel bar are connected by a threaded sleeve.

[0009] As a preferred embodiment of this utility model, diagonal bracing components are provided on the two opposite sides of the two curved wooden templates. Each diagonal bracing component includes a fixed seat and a diagonal bracing rod. The fixed seat is fixed to the concrete pad, and one end of the fixed seat is fixedly connected to the diagonal bracing rod. The other end of the diagonal bracing rod is fixedly connected to the outer side of the curved wooden template.

[0010] As a preferred embodiment of this utility model, the diagonal brace includes a first diagonal brace and a second diagonal brace, with the first diagonal brace located above the second diagonal brace.

[0011] As a preferred embodiment of this utility model, an arc-shaped fixing plate is fixed to the outer side of the arc-shaped wooden template. The arc-shaped fixing plate is coaxially arranged with the arc-shaped wooden template, and the end of the diagonal brace away from the fixing seat is fixedly connected to the arc-shaped fixing plate.

[0012] This utility model provides a circular foundation formwork structure. Compared with the prior art, its advantages are as follows: During construction, firstly, fixed connecting sleeves are fitted onto both ends of the curved wooden formwork. Then, the two curved wooden formworks are spliced ​​together and placed on the concrete pad. Next, the two connecting plates in the connecting assembly are fixedly connected by connectors. Subsequently, multiple tie rods are passed through the two curved wooden formworks respectively. Finally, tension nuts are tightened at both ends of the tie rods, so that the tension nuts abut against the outer side of the curved wooden formwork. Construction is simple. The two curved wooden formworks are connected by the connecting assembly to form a circular formwork, eliminating the need for customization and reducing costs. The tie rods and tension nuts prevent the two curved wooden formworks from separating, ensuring a stable structure. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention;

[0014] Figure 2 This is a structural diagram of the connecting sleeve of this utility model;

[0015] Figure 3 This is a structural diagram of the locking steel bar of this utility model, in which both ends are connected by threaded sleeves;

[0016] Figure 4 This is a structural diagram of the connection between the diagonal brace and the fixed base of this utility model;

[0017] Figure 5 This is a structural diagram of the arc-shaped fixing plate of this utility model;

[0018] In the figure, 1 is a concrete base layer; 2 is a circular formwork; 3 is an arc-shaped wooden formwork; 4 is a connecting component; 41 is a connecting sleeve; 411 is an arc-shaped groove; 42 is a connecting plate; 421 is a fixing hole; 423 is a clearance hole; 43 is a connector; 431 is a fixing bolt; 432 is a fixing nut; 5 is a tie rod; 51 is a tension nut; 6 is a locking rebar; 61 is a threaded sleeve; 7 is a diagonal brace assembly; 71 is a fixing seat; 72 is a diagonal brace; 721 is a first diagonal brace; 722 is a second diagonal brace; and 73 is an arc-shaped fixing plate. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figure 1-5As shown, a preferred embodiment of the present invention provides a circular foundation formwork structure, including a concrete pad 1, a circular template 2, and tie rods 5. The circular template 2 is placed on the concrete pad 1 and is cylindrical. The circular template 2 includes two opposing arc-shaped wooden templates 3. The two ends of one arc-shaped wooden template 3 are respectively connected to the two ends of the other arc-shaped wooden template 3 through connecting components 4 to form the circular template 2. That is, two sets of connecting components 4 are provided between the two arc-shaped wooden templates 3. The connecting components 4 include two connecting sleeves 41 respectively fitted and fixed to the ends of the arc-shaped wooden templates 3. The shape of the connecting sleeves 41 is adapted to the shape of the ends of the arc-shaped wooden templates 3. Generally, the bottom surface of the connecting sleeves 41 is flush with the bottom surface of the arc-shaped wooden templates 3 so that the circular template 2 is flatly placed on the concrete pad 1. The ends of the two connecting sleeves 41 in the connecting components 4 are connected to the ends of the arc-shaped wooden templates 3. For the surface-to-surface connection, in order to keep the inner side of the circular template 2 flat, the inner diameter of the end of the arc-shaped wooden template 3 (the part connected to the connecting sleeve 41) can be designed to be smaller than the inner diameter of the circular template 2, while the inner diameter of the connecting sleeve 41 is the same as the inner diameter of the circular template 2. The outer side of the connecting sleeve 41 is provided with a connecting plate 42. The two connecting plates 42 in the connecting assembly 4 are arranged opposite to each other and fixedly connected by a connector 43. There are multiple tie rods 5. The tie rods 5 are located inside the circular template 2. One end of the tie rod 5 passes through one of the arc-shaped wooden templates 3 and extends to the outside. The other end of the tie rod 5 passes through another arc-shaped wooden template 3 and extends to the outside. That is, the arc-shaped wooden template 3 is provided with a through hole for the tie rod 5 to pass through. It can be understood that there is sufficient sealing between the through hole and the tie rod 5. The two ends of the tie rod 5 are respectively provided with a tension nut 51, which abuts against the outer side of the arc-shaped wooden template 3.

[0022] The construction process of this embodiment is as follows: First, fixation connecting sleeves 41 are fitted onto both ends of the curved wooden template 3. Then, the two curved wooden templates 3 are spliced ​​together and placed on the concrete pad 1. Next, the two connecting plates 42 in the connecting component 4 are fixedly connected by the connector 43. Then, multiple tie rods 5 are respectively inserted into the two curved wooden templates 3. Finally, tension nuts 51 are tightened at both ends of the tie rods 5 so that the tension nuts 51 abut against the outer side of the curved wooden template 3, which is simple to construct. The two curved wooden templates 3 are connected by the connecting component 4 to form a circular template 2, which does not require customization and has low cost. The tie rods 5 and tension nuts 51 can prevent the two curved wooden templates 3 from separating from each other, and the structure is stable.

[0023] For example, the connecting sleeve 41 is provided with an arc-shaped groove 411 that mates with the end of the arc-shaped wooden template 3. One end of the arc-shaped groove 411 is an open end, and the other end of the arc-shaped groove 411 is a closed end, so as to facilitate the installation of the connecting sleeve 41. The top surface of the connecting sleeve 41 is flush with the top surface of the arc-shaped wooden template 3, and the bottom surface of the connecting sleeve 41 is flush with the bottom surface of the arc-shaped wooden template 3. That is, both the top and bottom ends of the arc-shaped groove 411 are open, which helps to keep the top and bottom surfaces of the circular template 2 flat as a whole.

[0024] For example, the top surface of the connecting plate 42 is flush with the top surface of the curved wooden template 3, and the bottom surface of the connecting plate 42 is flush with the bottom surface of the curved wooden template 3. The connecting plate 42 is provided with a plurality of fixing holes 421 arranged vertically at intervals. The fixing holes 421 of the two connecting plates 42 of the connecting assembly 4 are aligned one by one. The connecting member 43 includes fixing bolts 431 and fixing nuts 432. The fixing bolts 431 pass through the two aligned fixing holes 421 and are connected to the fixing nuts 432. A fixing bolt 431 is provided on each pair of aligned fixing holes 421 to ensure that the two connecting plates 42 are firmly connected.

[0025] For example, the connecting plate 42 is provided with a clearance hole 423, and a locking steel bar 6 is wrapped around the circular template 2. The locking steel bar 6 passes through the clearance hole 423. The clearance hole 423 facilitates the locking steel bar 6 to be wrapped around the circular template 2. The two ends of the locking steel bar 6 are connected by a threaded sleeve 61. By rotating the threaded sleeve 61, the locking steel bar 6 can be tightened, so that the locking steel bar 6 hugs the two arc-shaped wooden templates 3, thereby improving the overall stress of the template and playing a good reinforcement effect on the template, preventing the formwork from bursting during concrete pouring. Generally, there are multiple locking steel bars 6 arranged at intervals along the vertical direction.

[0026] For example, two curved wooden formwork 3 are provided with diagonal bracing components 7 on opposite sides. Generally, the two diagonal bracing components 7 are symmetrically arranged on both sides of the circular formwork 2. The diagonal bracing component 7 includes a fixing seat 71 and a diagonal bracing rod 72. The fixing seat 71 is fixed to the concrete pad 1, such as by expansion bolts. The fixing seat 71 is fixedly connected to one end of the diagonal bracing rod 72, and the other end of the diagonal bracing rod 72 is fixedly connected to the outside of the curved wooden formwork 3, thereby providing support and reinforcement for the curved wooden formwork 3.

[0027] For example, the diagonal brace 72 includes a first diagonal brace 721 and a second diagonal brace 722, with the first diagonal brace 721 located above the second diagonal brace 722, as shown below. Figure 1 and 4 As shown, in this embodiment, the connection between the first diagonal bar 721 and the arc-shaped wooden template 3 is located above the connection between the second diagonal bar 722 and the arc-shaped wooden template 3. The first diagonal bar 721 and the second diagonal bar 722 support the arc-shaped wooden template 3 at different heights, resulting in a good overall reinforcement effect.

[0028] For example, an arc-shaped fixing plate 73 is fixed to the outside of the arc-shaped wooden template 3. The arc-shaped fixing plate 73 is coaxially arranged with the arc-shaped wooden template 3. The end of the diagonal brace 72 away from the fixing seat 71 is fixedly connected to the arc-shaped fixing plate 73. The diagonal brace 72 is connected to the arc-shaped wooden template 3 through the arc-shaped fixing plate 73, which helps to fix the diagonal brace 72.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A circular foundation formwork structure, characterized in that: The system includes a concrete base layer, a circular template, and tie rods. The circular template is cylindrical and is placed on the concrete base layer. It comprises two opposing curved wooden templates. The ends of one curved wooden template are connected to the ends of the other curved wooden template via connecting components to form the circular template. Each connecting component includes two connecting sleeves fitted and fixed to the ends of the curved wooden templates. The shape of the connecting sleeves matches the shape of the ends of the curved wooden templates. Connecting plates are provided on the outer sides of the connecting sleeves. The two connecting plates in the connecting component are opposite to each other and fixedly connected by connectors. Multiple tie rods are provided inside the circular template. One end of each tie rod passes through one of the curved wooden templates and extends to the outside, while the other end passes through the other curved wooden template and extends to the outside. Tensioning nuts are provided at both ends of each tie rod, and these nuts abut against the outer sides of the curved wooden templates.

2. The circular foundation formwork structure according to claim 1, characterized in that: The connecting sleeve is provided with an arc-shaped groove that mates with the end of the arc-shaped wooden template. One end of the arc-shaped groove is an open end, and the other end of the arc-shaped groove is a closed end. The top surface of the connecting sleeve is flush with the top surface of the arc-shaped wooden template, and the bottom surface of the connecting sleeve is flush with the bottom surface of the arc-shaped wooden template.

3. The circular foundation formwork structure according to claim 2, characterized in that: The top surface of the connecting plate is flush with the top surface of the arc-shaped wooden template, and the bottom surface of the connecting plate is flush with the bottom surface of the arc-shaped wooden template.

4. The circular foundation formwork structure according to claim 3, characterized in that: The connecting plate is provided with a plurality of fixing holes arranged vertically at intervals. The fixing holes of the two connecting plates of the connecting assembly are aligned one by one. The connecting member includes a fixing bolt and a fixing nut. The fixing bolt passes through the two aligned fixing holes and is connected to the fixing nut.

5. The circular foundation formwork structure according to claim 1, characterized in that: The connecting plate is provided with a clearance hole, and a locking steel bar is surrounded on the circular template. The locking steel bar passes through the clearance hole, and the two ends of the locking steel bar are connected by a threaded sleeve.

6. The circular foundation formwork structure according to claim 1, characterized in that: Two curved wooden formwork panels are provided with diagonal bracing components on their opposite sides. Each diagonal bracing component includes a fixed base and a diagonal bracing rod. The fixed base is fixed to the concrete pad layer and is fixedly connected to one end of the diagonal bracing rod. The other end of the diagonal bracing rod is fixedly connected to the outer side of the curved wooden formwork panel.

7. The circular foundation formwork structure according to claim 6, characterized in that: The diagonal brace includes a first diagonal brace and a second diagonal brace, with the first diagonal brace located above the second diagonal brace.

8. The circular foundation formwork structure according to claim 6, characterized in that: An arc-shaped fixing plate is fixed to the outside of the arc-shaped wooden template. The arc-shaped fixing plate is coaxially arranged with the arc-shaped wooden template, and the end of the diagonal brace away from the fixing seat is fixedly connected to the arc-shaped fixing plate.

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