A semi-circular buttress steel formwork support structure

Abstract

This application relates to the field of buttress formwork technology, and in particular to a semi-circular buttress steel formwork support structure, which includes a first steel plate, a first template, a second steel plate, a second template, connectors, and water-stop tie bolts. The connectors include a connecting body, a first connecting plate, and a second connecting plate, both of which have grooves. The first template includes a limiting plate and two first ear plates, each of which has a protrusion that fits into the groove, and each first ear plate is connected to the first steel plate via connectors. The second template includes an arc-shaped plate and two second ear plates, each of which has a protrusion that fits into the groove, and each second ear plate is connected to the second steel plate via connectors. The first steel plate and the second steel plate are connected and fixed by water-stop tie bolts and nuts. This application improves the problem of water and grout leakage during the construction of circular exterior wall buttresses, thereby improving the construction effect of circular exterior wall buttresses.

Description

Technical Field

[0001] This application relates to the field of buttress formwork technology, and in particular to a semi-circular buttress steel formwork support structure. Background Technology

[0002] In the construction industry, a buttress is a column that is built close to the wall and constructed at the same time as the wall to increase the strength or rigidity of the wall. To ensure the stability of the wall in the beam direction and to deal with factors such as local compression, buttresses are generally installed during the construction of a house.

[0003] With urbanization, underground space development is increasing. The key to basement exterior wall construction is quality control of concrete pouring to prevent cracks and potential leaks. Formwork design and installation are crucial steps in concrete construction, directly impacting the overall quality. As architectural forms diversify, functional requirements also rise, leading to the application of various structural designs. In basement construction, direct connection between structural beams and continuous underground walls is insufficient for effective vertical load transfer; therefore, buttresses are necessary.

[0004] The construction method for buttress columns described in the relevant technology is as follows: 1) Remove the plaster layer on the original masonry surface, clean the surface debris and dust, and rinse and moisten with water; 2) Drive connecting reinforcing bars into the mortar joints of the brick wall; 3) Tie sealing bars at the opening edge; 4) Pour concrete to form the buttress column.

[0005] Circular external wall buttresses can add a unique dimension to basement exterior wall construction. However, circular external wall buttresses cannot be constructed using normal buttress construction methods. They are mostly reinforced with wooden formwork, ring steel hoops, and steel pipe diagonal bracing systems. Due to the difficulty in setting up formwork for circular external wall buttresses, this construction method has poor results and is prone to water and grout leakage during construction. Summary of the Invention

[0006] In order to improve the construction effect of circular external wall buttresses by addressing the issues of water and grout leakage, this application provides a semi-circular buttress steel formwork support structure.

[0007] The technical solution for a semi-circular buttress column steel formwork support structure provided in this application is as follows:

[0008] A semi-circular buttress column steel formwork support structure includes a first steel plate, a first formwork, a second steel plate, a second formwork, connectors, and water-stop tie bolts;

[0009] The connector is installed between the first steel plate and the first template, and between the second steel plate and the second template. The connector includes a connecting body, a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate are respectively located on both sides of the connecting body. The first connecting plate and the second connecting plate are provided with grooves, and the opening directions of the grooves on the first connecting plate and the second connecting plate are the same.

[0010] The first template includes a limiting plate and two first ear plates. The two first ear plates are integrally formed on both sides of the limiting plate, and each first ear plate is connected to the first steel plate through the connector.

[0011] The second template includes an arc-shaped plate and two second ear plates. The two second ear plates are integrally formed on both sides of the arc-shaped plate. Each first ear plate and each second ear plate are formed with a protrusion that fits the groove. Each second ear plate is connected to the second steel plate through the connector.

[0012] The first steel plate and the second steel plate are connected and fixed by the water-stop tie bolts and nuts. The first steel plate, the second steel plate, the connecting body and the first template are all formed with a first surface for contacting the concrete. When the first steel plate and the first template and the second steel plate and the second template are connected, the first surfaces of the first steel plate, the connecting body and the first template are all flush. The first surface of the second steel plate is flush with the first surface of the connecting body.

[0013] By adopting the above technical solution, a tight connection can be achieved between the first template and the connector, and between the first steel plate and the connector, through the cooperation of protrusions and grooves. Similarly, a tight connection can also be achieved between the second steel plate and the connector, and between the outer steel plate and the connector. The first steel plate and the second steel plate are then connected and fixed by water-stop tie bolts. In this way, the first and second steel plates facilitate the construction of the second template and the first template. At the same time, the connection between them is tighter under the action of the connectors, which improves the problem of water and grout leakage that is prone to occur during the construction of circular external wall buttresses, and improves the construction effect of circular external wall buttresses.

[0014] Optionally, it also includes clamping elements for fastening, which are respectively installed on the opposite sides of the connectors. Each connector has multiple clamping elements, which are evenly distributed on the first connecting plate and the second connecting plate.

[0015] By adopting the above technical solution, the clamping component can play a clamping role, further improving the tightness of the connection.

[0016] Optionally, the clamping component includes a connecting rod, a compression spring, a sliding block, a fastening nut, and two support legs. The connecting rod includes a first threaded portion that can be threadedly connected to the first connecting plate, the second connecting plate, the first ear plate, and the second ear plate, a second threaded portion that is threadedly connected to the fastening nut, and a sliding portion located between the first threaded portion and the second threaded portion. The sliding block is slidably connected to the sliding portion. The two ends of the compression spring are respectively connected to the sliding portion and the sliding block. The two support legs are located on both sides of the sliding block.

[0017] By adopting the above technical solution, when in use, the first threaded part is screwed and fixed, the sliding block slides on the sliding part until the two legs abut against the surface of the first connecting plate or the second connecting plate, and the fastening nut is screwed on to achieve a tight fit, which makes the connection more compact.

[0018] Optionally, it also includes a sealing assembly for sealing the gap between the first steel plate and the ground, and the gap between the second steel plate and the ground.

[0019] By adopting the above technical solution, the sealing component is used to seal the bottom of the steel plates and templates on both sides, thereby improving the sealing degree between the second steel plate, the first steel plate, the second template, and the first template and the ground, and reducing the possibility of leakage from the bottom.

[0020] Optionally, the sealing assembly includes a horizontally arranged first sealing plate, a second sealing plate perpendicular to the first sealing plate, and a support rod. The first sealing plate can abut against the ground, and the second sealing plate can abut against the first steel plate or the second steel plate. The second sealing plate can be connected to the first steel plate or the second steel plate by fasteners. The first steel plate or the second steel plate has positioning holes for fasteners to screw into. One end of the support rod is hinged to the first sealing plate, and the other end of the support rod is hinged to the first steel plate or the second steel plate.

[0021] By adopting the above technical solution, the support rod can press the first sealing plate tightly, and the fastener can press the second sealing plate tightly, thereby ensuring the overall sealing effect.

[0022] Optionally, a rubber sealing plate is provided on the side of the first sealing plate that is in contact with the ground and on the side of the second sealing plate that is in contact with the first steel plate or the second steel plate.

[0023] By adopting the above technical solution, the rubber sealing plate can further seal the bottom gaps and prevent bottom grout leakage.

[0024] Optionally, both the protrusion and the groove are covered with a self-lubricating layer.

[0025] By adopting the above technical solution, the self-lubricating layer can effectively reduce the wear of protrusions and grooves and extend their service life.

[0026] Optionally, wooden supports are installed on both the first steel plate and the second steel plate, with the wooden supports located on opposite sides of the first steel plate and the second steel plate.

[0027] By adopting the above technical solutions, wooden supports can play a supporting and reinforcing role, thereby improving the stability of the overall structure.

[0028] Optionally, the arc-shaped plate has multiple protruding ridges formed on the side opposite to the first template, and the multiple protruding ridges are spaced apart along the length direction of the arc-shaped plate.

[0029] By adopting the above technical solution, the protruding ridge can improve the overall strength of the curved plate and reduce the possibility of deformation of the curved plate.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. This application includes a first template, a second template, a first steel plate, a second steel plate, water-stop tie bolts, and connectors. The connectors include a connecting body, a first connecting plate, and a second connecting plate. The first and second connecting plates are located on both sides of the connecting body. Both the first and second connecting plates have grooves. The first template, the second template, the first steel plate, and the second steel plate all have ear plates formed on them. The ear plates have protrusions that fit into the grooves. The connectors are located between the first steel plate and the first template, and between the second steel plate and the second template. Through the cooperation of the protrusions and the grooves, a tight connection can be achieved between the first template and the connectors, and between the first steel plate and the connectors. Similarly, a tight connection can also be achieved between the second steel plate and the connectors, and between the outer steel plate and the connectors. The first steel plate and the second steel plate are then connected and fixed by water-stop tie bolts. In this way, the first and second steel plates make it easier to build the second and first templates. At the same time, the connection between them is tighter under the action of the connectors, which improves the problem of water and grout leakage during the construction of circular external wall buttress columns and improves the construction effect of circular external wall buttress columns.

[0032] 2. This application also includes a sealing component, which is used to seal the bottom of the steel plates on both sides and the templates on both sides, thereby improving the sealing degree between the second steel plate, the first steel plate, the second template and the first template and the ground, and reducing the possibility of leakage from the bottom;

[0033] 3. In this application, for the construction of semi-circular buttress columns with different curvatures, only the second formwork needs to be replaced, eliminating the need to make the entire casting formwork separately, which greatly improves the convenience of construction and reduces construction costs. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of the semi-circular buttress column steel formwork support structure in this application;

[0035] Figure 2 This is a top view of the semi-circular buttress column steel formwork support structure in this application;

[0036] Figure 3 This is a top view of the connector in this application;

[0037] Figure 4 This is a top view of the clamping element in this application;

[0038] Figure 5 This is a schematic diagram of the sealing component in this application.

[0039] Explanation of reference numerals in the attached drawings: 1. First steel plate; 2. First template; 21. Limiting plate; 22. First ear plate; 23. Protrusion; 3. Second steel plate; 4. Second template; 41. Arc plate; 42. Second ear plate; 5. Connecting piece; 51. Connecting body; 52. First connecting plate; 53. Second connecting plate; 54. Groove; 6. Water-stop tie bolt; 7. Clamping piece; 71. Connecting rod; 711. First threaded part; 712. Sliding part; 713. Second threaded part; 72. Compression spring; 73. Sliding block; 74. Fastening nut; 75. Support leg; 8. Sealing assembly; 81. First sealing plate; 82. Second sealing plate; 83. Support rod; 9. Rubber sealing plate; 10. Wooden support; 11. Protruding ridge. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0041] This application discloses a steel formwork support structure for a semi-circular buttress column, referring to... Figure 1 and Figure 2 The semi-circular buttress column steel formwork support structure includes a first steel plate 1, a first template 2, a second steel plate 3, a second template 4, a connector 5, and a water-stop tie bolt 6. The connector 5 is installed between the first steel plate 1 and the first template 2, and between the second steel plate 3 and the second template 4. The first steel plate 1 and the second steel plate 3 are connected and fixed by the water-stop tie bolt 6 and nuts. The first steel plate 1, the second steel plate 3, the connecting body 51, and the first template 2 are all formed with a first surface for contacting the concrete.

[0042] Both ends of the first template 2 are connected to the first steel plate 1 via connectors 5, and both ends of the second template 4 are connected to the second steel plate 3 via connectors 5. With the help of the first steel plate 1 and the second steel plate 3, the installation of the first template 2 and the second template 4 is more convenient, and the stability of the support structure is improved. With the help of connectors 5, the connection is tighter, which improves the problem of water leakage and grout leakage during the construction of circular external wall buttress columns, and improves the construction effect of circular external wall buttress columns.

[0043] Specifically, refer to Figure 2 and Figure 3 The connector 5 includes a connecting body 51, a first connecting plate 52 and a second connecting plate 53. The first connecting plate 52 and the second connecting plate 53 are located on both sides of the connecting body 51. The first connecting plate 52 and the second connecting plate 53 are provided with grooves 54, and the opening directions of the grooves 54 on the first connecting plate 52 and the second connecting plate 53 are the same.

[0044] Reference Figure 1 , Figure 2 and Figure 3 The first template 2 includes a limiting plate 21 and two first ear plates 22. The two first ear plates 22 are integrally formed on both sides of the limiting plate 21. Each first ear plate 22 is connected to the first steel plate 1 through a connector 5. The second template 4 includes an arc plate 41 and two second ear plates 42. The two second ear plates 42 are integrally formed on both sides of the arc plate 41. Each first ear plate 22 and each second ear plate 42 has a protrusion 23 that fits into the groove 54. Each second ear plate 42 is connected to the second steel plate 3 through a connector 5.

[0045] With the cooperation of protrusions 23 and grooves 54, the protrusions 23 on the first steel plate 1 connect to the grooves 54 on the first connecting plate 52, the protrusions 23 on the first template 2 connect to the grooves 54 on the second connecting plate 53, the protrusions 23 on the second steel plate 3 connect to the grooves 54 on the first connecting plate 52, and the protrusions 23 on the second template 4 connect to the grooves 54 on the second connecting plate 53. This improves the tightness of the connection. At the same time, the first surfaces of the first steel plate 1, the connecting body 51, and the first template 2 are all flush, and the first surface of the second steel plate 3 is flush with the first surface of the connecting body 51, greatly improving the construction effect.

[0046] It should be noted that the steel plates and formwork are connected to form an integrated support structure. Depending on the work requirements, only the formwork needs to be designed individually to meet the needs of semi-circular buttress columns with different curvatures. This facilitates replacement and assembly, improves construction efficiency, and reduces construction costs. Both the protrusion 23 and the groove 54 are covered with a self-lubricating layer (not shown in the figure). The self-lubricating layer can be made of polytetrafluoroethylene (PTFE), which effectively reduces the wear on the protrusion 23 and the groove 54.

[0047] Reference Figure 3 and Figure 4 Each connector 5 is also equipped with clamping members 7, which are installed on opposite sides of the connector 5. Multiple clamping members 7 are provided on each connector 5, evenly distributed on the first connecting plate 52 and the second connecting plate 53. In this embodiment, four clamping members 7 are provided on each connector 5, with two on each of the first connecting plate 52 and the second connecting plate 53. The clamping members 7 provide a clamping effect, further improving the tightness of the connection.

[0048] Specifically, refer to Figure 1 and Figure 4 , refer to Figure 1 and Figure 2 The clamping component 7 includes a connecting rod 71, a compression spring 72, a sliding block 73, a fastening nut 74, and two support legs 75. The connecting rod 71 includes a first threaded portion 711 that can be threadedly connected to the first connecting plate 52, the second connecting plate 53, the first ear plate 22, and the second ear plate 42; a second threaded portion 713 that can be threadedly connected to the fastening nut 74; and a sliding portion 712 located between the first threaded portion 711 and the second threaded portion 713. The sliding block 73 is slidably connected to the sliding portion 712. The two ends of the compression spring 72 are respectively connected to the sliding portion 712 and the sliding block 73. The two support legs 75 are symmetrically arranged on both sides of the sliding block 73. The sliding block 73, the connecting rod 71, and the two support legs 75 form an umbrella-shaped support structure. In use, the first threaded part 711 is screwed in and fixed, and the sliding block 73 slides on the sliding part 712 until the two support legs 75 abut against the surface of the first connecting plate 52 or the second connecting plate 53. The fastening nut 74 is then screwed in to secure the connection, making the joint tighter and further reducing the possibility of water or grout leakage. The compression spring 72 can drive the support legs 75 to automatically return to their original position.

[0049] Reference Figure 1 and Figure 5 Since there may be gaps between the first steel plate 1 and the ground, and between the second steel plate 3 and the ground, there may be water leakage or grout leakage through these gaps, which may affect the construction effect. In order to seal these gaps, sealing components 8 are installed at the bottom of the first steel plate 1 and the second steel plate 3.

[0050] Reference Figure 1 and Figure 5 The sealing assembly 8 includes a horizontally positioned first sealing plate 81, a second sealing plate 82 perpendicular to the first sealing plate 81, and a support rod 83. The first sealing plate 81 can abut against the ground, and the second sealing plate 82 can abut against the first steel plate 1 or the second steel plate 3. The first sealing plate 81 and the second sealing plate 82 are generally L-shaped. The first steel plate 1 or the second steel plate 3 has positioning holes (not shown in the figure) for fasteners to screw into. The second sealing plate 82 can be connected to the first steel plate 1 or the second steel plate 3 by fasteners. One end of the support rod 83 is hinged to the first sealing plate 81, and the other end of the support rod 83 can be hinged to the first steel plate 1 or the second steel plate 3. Under the action of the first sealing plate 81 and the second sealing plate 82, the bottom gap can be sealed, reducing the probability of grout seeping out through the gap, thereby improving construction efficiency.

[0051] Of course, the end of the support rod 83 that connects to the first steel plate 1 or the second steel plate 3 can be directly hinged or a connecting block can be used. The connecting block is embedded or snapped in to facilitate assembly and disassembly. In this embodiment, no further details will be provided.

[0052] Reference Figure 1 and Figure 5 The first sealing plate 81, which is used to abut against the ground, and the second sealing plate 82, which is used to abut against the first steel plate 1 or the second steel plate 3, are both provided with rubber sealing plates 9. The rubber sealing plates 9 on the first sealing plate 81 and the second sealing plate 82 can be integrally formed. The rubber sealing plates 9 can further seal the bottom gaps and prevent the bottom grout leakage.

[0053] Reference Figure 1 Wooden supports 10 are installed on both the first steel plate 1 and the second steel plate 3, with the wooden supports 10 located on the opposite side of the first steel plate 1 and the second steel plate 3. The wooden supports 10 serve to support and reinforce, improving the stability and robustness of the overall structure. The wooden supports 10 can be bound and fixed by water-stop tie bolts 6.

[0054] Reference Figure 1 The curved plate 41 has multiple protruding ridges 11 formed on the side opposite to the first template 2, and the multiple protruding ridges 11 are distributed at intervals along the length direction of the curved plate 41. The protruding ridges 11 can improve the overall strength of the curved plate 41 and reduce the possibility of deformation of the curved plate 41, so as to ensure the overall construction effect.

[0055] The implementation principle of the semi-circular buttress steel formwork support structure in this application embodiment is as follows: Through the cooperation of the protrusion 23 and the groove 54, tight connections can be achieved between the first template 2 and the connector 5, between the first steel plate 1 and the connector 5, between the second steel plate 3 and the connector 5, and between the outer steel plate and the connector 5. The first steel plate 1 and the second steel plate 3 are then connected and fixed by water-stop tie bolts 6, and further tightened by clamping members 7. The bottom is sealed by a sealing component 8. Thus, the first steel plate 1 and the second steel plate 3 facilitate the construction of the second template 4 and the first template 2. Simultaneously, the connection between them is tighter under the action of the connector 5, improving the problem of water and grout leakage during the construction of circular external wall buttress columns, and enhancing the construction effect of circular external wall buttress columns.

[0056] 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 semi-circular buttress column steel formwork support structure, characterized in that: It includes a first steel plate (1), a first template (2), a second steel plate (3), a second template (4), a connector (5), and a water-stop tie bolt (6); The connector (5) is installed between the first steel plate (1) and the first template (2), and between the second steel plate (3) and the second template (4). The connector (5) includes a connecting body (51), a first connecting plate (52) and a second connecting plate (53). The first connecting plate (52) and the second connecting plate (53) are located on both sides of the connecting body (51). The first connecting plate (52) and the second connecting plate (53) are provided with grooves (54). The opening directions of the grooves (54) on the first connecting plate (52) and the second connecting plate (53) are the same. The first template (2) includes a limiting plate (21) and two first ear plates (22). The two first ear plates (22) are integrally formed on both sides of the limiting plate (21). Each first ear plate (22) is connected to the first steel plate (1) through the connector (5). The second template (4) includes an arc plate (41) and two second ear plates (42). The two second ear plates (42) are integrally formed on both sides of the arc plate (41). Each first ear plate (22) and each second ear plate (42) has a protrusion (23) that fits into the groove (54). Each second ear plate (42) is connected to the second steel plate (3) through the connector (5). The first steel plate (1) and the second steel plate (3) are connected and fixed by the water-stop tie bolts (6) and nuts. The first steel plate (1), the second steel plate (3), the connecting body (51) and the first template (2) are all formed with a first surface for contacting concrete. When the first steel plate (1) and the first template (2), and the second steel plate (3) and the second template (4) are connected, the first surfaces of the first steel plate (1), the connecting body (51) and the first template (2) are all flush. The first surface of the second steel plate (3) is flush with the first surface of the connecting body (51).

2. The semi-circular buttress column steel formwork support structure according to claim 1, characterized in that: It also includes clamping members (7) for fastening, which are respectively installed on the opposite sides of the connectors (5). Each connector (5) has multiple clamping members (7), which are evenly distributed on the first connecting plate (52) and the second connecting plate (53).

3. The semi-circular buttress column steel formwork support structure according to claim 2, characterized in that: The clamping member (7) includes a connecting rod (71), a compression spring (72), a sliding block (73), a fastening nut (74), and two support legs (75). The connecting rod (71) includes a first threaded portion (711) that can be threadedly connected to the first connecting plate (52), the second connecting plate (53), the first ear plate (22), and the second ear plate (42), a second threaded portion (713) that is threadedly connected to the fastening nut (74), and a sliding portion (712) located between the first threaded portion (711) and the second threaded portion (713). The sliding block (73) is slidably connected to the sliding portion (712). The two ends of the compression spring (72) are respectively connected to the sliding portion (712) and the sliding block (73). The two support legs (75) are located on both sides of the sliding block (73).

4. The semi-circular buttress column steel formwork support structure according to claim 1, characterized in that: It also includes a sealing assembly (8) for sealing the gap between the first steel plate (1) and the ground, and the gap between the second steel plate (3) and the ground.

5. The semi-circular buttress column steel formwork support structure according to claim 4, characterized in that: The sealing assembly (8) includes a horizontally arranged first sealing plate (81), a second sealing plate (82) perpendicular to the first sealing plate (81), and a support rod (83). The first sealing plate (81) can abut against the ground, and the second sealing plate (82) can abut against the first steel plate (1) or the second steel plate (3). The second sealing plate (82) can be connected to the first steel plate (1) or the second steel plate (3) by fasteners. The first steel plate (1) or the second steel plate (3) has positioning holes for fasteners to screw into. One end of the support rod (83) is hinged to the first sealing plate (81), and the other end of the support rod (83) is hinged to the first steel plate (1) or the second steel plate (3).

6. The semi-circular buttress column steel formwork support structure according to claim 5, characterized in that: The first sealing plate (81) and the side of the second sealing plate (82) that are in contact with the ground are both provided with rubber sealing plates (9).

7. The semi-circular buttress column steel formwork support structure according to claim 1, characterized in that: Both the protrusion (23) and the groove (54) are covered with a self-lubricating layer.

8. The semi-circular buttress column steel formwork support structure according to claim 1, characterized in that: Wooden supports (10) are installed on both the first steel plate (1) and the second steel plate (3), and the wooden supports (10) are located on the opposite side of the first steel plate (1) and the second steel plate (3).

9. The semi-circular buttress column steel formwork support structure according to claim 1, characterized in that: The arc-shaped plate (41) has a plurality of protruding ridges (11) formed on the side opposite to the first template (2), and the plurality of protruding ridges (11) are spaced apart along the length direction of the arc-shaped plate (41).

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