Wall formwork single-side supporting structure and construction method thereof

Abstract

The invention relates to the field of wall formwork supporting, and provides a wall formwork single-side supporting structure and a construction method thereof. The wall formwork single-side supporting structure comprises a supporting assembly. The supporting assembly is arranged on the side, away from the existing building structure, of the formwork. The supporting assembly comprises a stand column, a ground force bearing piece, a first supporting unit and a balance pull rod. The ground force bearing part is fixed to the ground, the stand column is vertically arranged, the lower end of the stand column is connected with the ground force bearing part, the first supporting unit and the balance pull rod are located between the formwork and the stand column, the first supporting unit comprises at least one first supporting rod, one end of the first supporting rod is connected with the formwork, and the other end of the first supporting rod is connected with the upper half portion of the stand column. The balance pull rod is obliquely arranged, the lower end of the balance pull rod is connected with the ground force bearing piece, and the higher end of the balance pull rod is connected with the stand column. The problems that a traditional formwork supporting structure is large in side effect and needs a large setting space are solved.

Description

Technical Field

[0001] The present application relates to the field of wall formwork support, and in particular to a single-sided support structure of a wall formwork and a construction method thereof. Background Art

[0002] The wall formwork support structure plays an important role in building construction. It ensures the stability and safety of the formwork during concrete pouring through reasonable mechanical design.

[0003] Due to the limitation of engineering conditions, the external wall of underground structure of buildings can only support the wall formwork on one side during construction. There are usually two ways to support the wall formwork on one side, namely using tension bolts or using props to support the formwork.

[0004] However, when using tension bolts, water seepage channels will inevitably be left inside the concrete, weakening the waterproof ability of the concrete structure; when using the formwork with a prop, a larger space for the prop is required. Especially in the formwork of tall walls, a larger space for the support is required. However, the construction site of underground structures is complex and crowded, especially in the construction of the central area of ​​the city, the site is narrow and limited, and it is difficult to provide a large space for the erection, which limits the height of the wall formwork and affects the economic efficiency and quality of the project. Summary of the invention

[0005] In order to solve the problem that the traditional formwork support structure has large side effects and requires a large installation space, the present application provides a wall formwork single-sided support structure and a construction method thereof.

[0006] The present application provides a wall formwork single-side support structure and a construction method thereof using the following technical solutions: In a first aspect, the present application provides a wall formwork single-side support structure, comprising: A support assembly is arranged on a side of the template away from the existing building structure, and the support assembly includes a column, a ground bearing member, a first support unit and a balance rod; The ground bearing member is fixed to the ground, the column is vertically arranged and its lower end is connected to the ground bearing member, the first support unit and the balance rod are both located between the template and the column, the first support unit includes at least one first support rod, one end of the first support rod is connected to the template, and the other end is connected to the upper half of the column; The balancing rod is tilted, with the lower end connected to the ground load-bearing member and the higher end connected to the column.

[0007] By adopting the above technical solution, the stability between the formwork and the existing building structure is significantly improved. The columns are fixed to the ground through ground load-bearing members, providing a solid foundation for the entire support structure. The first support rod in the first support unit connects the formwork and the upper half of the column, which can effectively transmit and disperse the force on the formwork to prevent the formwork from tilting or displacement. The first support rod is connected to the upper half of the column, so that the first support rod only needs a smaller setting space to support the upper half of the formwork. The inclined setting of the balance rod further enhances the anti-overturning ability of the structure. Its two ends are respectively connected to the ground load-bearing members and the column, so that the pressure exerted by the formwork on the column can be balanced by the balance rod, ensuring the safety and reliability of the entire support structure during the construction process.

[0008] Optionally, an included angle a between the first support rod and a horizontal plane satisfies: -45°≤a≤45°.

[0009] By adopting the above technical solution, the angle between the first support rod and the horizontal plane is limited to the range of -45° to 45°, thereby ensuring that the first support rod can connect the formwork and the column at a more reasonable angle, thereby more effectively transferring and dispersing the load on the formwork and reducing the risk of structural deformation.

[0010] Optionally, there are multiple first support rods, at least one of which is horizontally arranged and perpendicular to the template, and the remaining first support rods are inclined and the inclination angles are not completely the same.

[0011] By adopting the above technical solution, the arrangement of multiple first support rods can improve the overall stability of the template, wherein at least one first support rod is arranged horizontally and perpendicular to the template, and this arrangement can directly enhance the support force of the template in the horizontal direction, effectively preventing the template from lateral displacement or tilting. The design of the remaining first support rods being arranged at an angle with different inclination angles can provide additional support force in different directions, further improving the anti-overturning ability of the template structure, and at the same time reasonably dispersing the external force acting on the template, avoiding structural deformation or damage caused by excessive local force.

[0012] Optionally, the support assembly further comprises a second support unit, the second support unit is located below the first support unit, the second support unit comprises at least one second support rod, one end of the second support rod is connected to the template, and the other end is connected to the lower half of the column or the ground bearing member.

[0013] By adopting the above technical solution, the addition of a second support unit can effectively improve the overall stability of the single-sided support structure of the wall formwork. Specifically, the setting of the second support rod provides an additional support point for the formwork, disperses the force acting on the formwork, and thus reduces the load pressure of the first support unit. At the same time, since the second support rod is located below the first support unit and is connected to the lower half of the column or the ground bearing member, this layout further enhances the structure's ability to resist deformation. The first support rod and the second support rod can support different areas of the formwork respectively, so that the formwork can still maintain good flatness and stability when subjected to a large load.

[0014] Optionally, there are a plurality of balancing rods, and projections of at least two balancing rods whose ends away from the columns on the template are located on opposite sides of the projections of the columns on the template.

[0015] By adopting the above technical solution, there are multiple balancing rods, and at least two balancing rods have their ends away from the columns whose projections on the template are located on opposite sides of the projections of the columns on the template. This design can effectively disperse the external forces acting on the columns, and prevent the columns from tilting or structural deformation due to the load from the template.

[0016] Optionally, the support assembly further includes a reinforcing plate, the first support rod and the second support rod penetrate the reinforcing plate, and the reinforcing plate is connected to the column.

[0017] By adopting the above technical solution, the provision of the reinforcing plate can effectively improve the stability of the first support rod and the second support rod, and prevent them from being offset or deformed during the force-bearing process. The specific effects are as follows: 1. The reinforcement plate is connected to the column to form a stable supporting structure, which improves the bearing capacity of the overall structure.

[0018] 2. By strengthening the restraining effect of the plate, the vibration of the support rod during the construction process is reduced, the support rod is prevented from being deformed due to excessive force, and the construction safety is improved.

[0019] Optionally, at least one of the first support rods and one of the second support rods are arranged obliquely; The wall formwork single-side support structure further includes a tensioning assembly, and the reinforcing plate is connected to the column via the tensioning assembly; The tension assembly includes a screw rod and a limiting nut, wherein the screw rod horizontally penetrates the middle of the column and the reinforcing plate, and the reinforcing plate and the column are both provided with the limiting nut on the side away from each other, and the limiting nut is threadedly connected to the screw rod; The pulling assembly is used to drive the reinforcing plate to approach the column, so that the reinforcing plate applies force to the first supporting rod and the second supporting rod which are arranged obliquely.

[0020] By adopting the above technical solution, the setting of the tension assembly can effectively enhance the overall stability of the support structure. Specifically, the use of the screw rod and the limit nut enables the reinforcing plate to be adjusted until a force is applied to the inclined first support rod and the second support rod, and the reinforcing plate is fixed by the tension assembly, the inclined first support rod and the inclined second support rod, thereby improving the limiting effect of the reinforcing plate on the inclined first support rod and the inclined second support rod.

[0021] Optionally, the tensioning assembly further includes a support block, wherein the support block is located between the reinforcing plate and the column, one end of the support block is threadedly connected to the reinforcing plate, and the other end of the support block is abutted against the column.

[0022] By adopting the above technical solution, the setting of the support block can effectively enhance the stability of the tension assembly. Specifically, the support block is located between the reinforcement plate and the column, one end of which is threadedly connected to the reinforcement plate, and the other end is in contact with the column. This structural design allows a portion of the load from the first support rod borne by the reinforcement plate to be transferred to the middle part of the column, reducing the load on the upper half of the column and avoiding damage to the column. At the same time, the threaded connection method of the support block allows the support block to be rotated after the position of the reinforcement plate is adjusted, so as to move to contact with the column, reducing the complexity and reliability of the construction.

[0023] Optionally, pads are provided on opposite sides of the column, and the pads are sleeved on the screw rod and abut against the column.

[0024] By adopting the above technical solution, pads are arranged on opposite sides of the column, and the pads are sleeved on the screw rods and abut against the column, which can effectively prevent the column from bending and avoid structural damage caused by local stress concentration.

[0025] In a second aspect, the present application also provides a construction method of a wall formwork single-side support structure, comprising: Install ground bearing members; Install the uprights and balancing rods; Connect the support block to the reinforcing plate, then sequentially pass the first support rod and the second support rod through the reinforcing plate, and complete the installation of the first support rod and the second support rod; Installing a pulling assembly, and then gradually pulling the reinforcing plate closer to the column until the reinforcing plate applies force to the first support rod and the second support rod which are arranged obliquely; The support block is rotated until the support block abuts against the column.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging a support assembly on one side of the formwork, including a column, a ground bearing member, a first support unit and a balancing rod, the space limitation problem during construction on one side of the existing building structure can be effectively solved, and stable support of the formwork can be achieved; 2. The first support rod in the first support unit is connected to the upper half of the column, and combined with the inclined setting of the balance rod, a stable force-bearing structure is formed to ensure that the template remains balanced when subjected to external forces during the pouring process, thereby improving the rigidity and safety of the overall structure; 3. The reinforcing plate can limit the first support rod and the second support rod to prevent the first support rod and the second support rod from bending, and part of the pressure applied by the template to the inclined first support rod will be transmitted to the reinforcing plate, and then transmitted to the middle part of the column by the reinforcing plate through the tensioning assembly, thereby reducing the pressure from the first support rod on the upper half of the column and preventing the column from deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of an embodiment of a single-sided support structure of a wall formwork provided in the present application.

[0028] Figure 2 It is a structural schematic diagram of another embodiment of the single-sided support structure of the wall formwork provided in the present application.

[0029] Description of reference numerals: 1. Support assembly; 11. Column; 12. Ground bearing member; 13. First support unit; 14. Second support unit; 15. Balance rod; 16. Reinforcement plate; 2. Pull assembly; 21. Screw rod; 22. Limit nut; 23. Support block; 3. Pad; 200. Formwork; 300. Existing building structure. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1 to 2 This application is described in further detail.

[0031] like Figure 1 As shown, an embodiment of the present application discloses a single-sided support structure for a wall formwork, including a support assembly 1.

[0032] Specifically, the template 200 is arranged on one side of the existing building structure 300, and the support assembly 1 is arranged on the side of the template 200 away from the existing building structure 300 and is used to support the template 200. The template 200 includes a panel, a keel and a connecting member. Among them, the keel includes a plurality of vertical keels and a plurality of transverse keels, and the transverse keels are respectively connected to the plurality of vertical keels. The panel is connected to the vertical keel. The connecting member can be a conventional component such as a bolt, which is used to connect the components.

[0033] The support assembly 1 includes a column 11 , a ground bearing member 12 , a first support unit 13 , a second support unit 14 and a balancing rod 15 .

[0034] The ground bearing member 12 may specifically be a support seat.

[0035] The column 11 may be a steel column, which is vertically arranged and the bottom is connected to the ground bearing member 12 .

[0036] The first supporting unit 13 , the second supporting unit 14 and the balancing rod 15 are all located between the template 200 and the column 11 .

[0037] The first support unit 13 includes at least one first support column, one end of the first support rod is connected to the upper half of the template 200, and the other end is connected to the upper half of the column 11, and the angle a between the first support rod and the horizontal plane satisfies: -45°≤a≤45°. In practice, multiple first support rods can be set, at least one of which is horizontally set and perpendicular to the template 200, and the remaining first support rods are all inclined and the inclination angles are not exactly the same.

[0038] For example, the number of first support rods may be three, and the three first support rods are coplanar and have different heights. The angle between the top first support rod and the horizontal plane is 45°, that is, the higher end of the first support rod is connected to the upper half of the template 200, and the lower end is connected to the upper half of the column 11; the middle first support rod is arranged horizontally; the angle between the bottom first support rod and the horizontal plane is -45°, and the lower end of the first support rod is connected to the upper half of the template 200, and the higher end is connected to the upper half of the column 11. By setting the first support rods in different directions, a better support effect can be provided for the upper half of the template 200, and the end of the first support rod facing away from the template 200 is connected to the upper half of the column 11 instead of the ground, so that the space required for the setting of the first support rod is greatly reduced, and good support can be provided for the template 200 in a narrow space.

[0039] The second support unit 14 is located below the first support unit 13 and includes at least one second support rod, which can be coplanar with the first support rod. One end of the second support rod is connected to the lower half of the template 200, and the other end is connected to the lower half of the column 11 or the ground bearing member 12.

[0040] For example, the number of the second support rods is also three, and the heights of the three second support rods are all different, and the inclination angles of the three second support rods gradually increase from bottom to top. The bottom second support rod is horizontally arranged and perpendicular to the template 200; the angle between the top second support rod and the horizontal plane is 45°; the angle between the middle second support rod and the horizontal plane is between 0° and 45°.

[0041] The balancing rod 15 is tilted, with its lower end connected to the ground bearing member 12, and its higher end connected to the middle of the column 11. The balancing rod 15 can provide a pulling force to the column 11, thereby balancing the pressure from the template 200 on the column 11, and preventing the rod from tipping over or deforming. There are multiple balancing rods 15, for example, two. The projections of the ends of the two balancing rods 15 away from the column 11 on the template 200 are located on opposite sides of the projection of the column 11 on the template 200. By applying a pulling force to the column 11 by two balancing rods 15 at the same time, it is possible to reduce the pulling force value on a single balancing rod 15 and further reduce the probability of deformation or tilting of the column 11.

[0042] like Figure 2 As shown, in some embodiments, the support assembly 1 further includes a reinforcing plate 16 , and the single-sided support structure of the wall formwork further includes a tensioning assembly 2 .

[0043] The first support rod and the second support rod pass through the reinforcing plate 16, and the reinforcing plate 16 is connected to the column 11 through the tension assembly 2. The reinforcing plate 16 can limit the first support rod and the second support rod to prevent the first support rod and the second support rod from bending.

[0044] The tension assembly 2 includes a screw rod 21, a limiting nut 22 and a support block 23. The screw rod 21 horizontally penetrates the middle of the column 11 and the reinforcing plate 16. The reinforcing plate 16 and the side of the column 11 away from each other are both provided with a limiting nut 22, and the limiting nut 22 is threadedly connected to the screw rod 21. The support block 23 is located between the reinforcing plate 16 and the column 11, and one end of the support block 23 is threadedly connected to the reinforcing plate 16, and the other end is in contact with the column 11.

[0045] By screwing the limit nut 22, the reinforcing plate 16 can be moved toward the column 11 or show a tendency to move toward the column 11, so that the reinforcing plate 16 squeezes the inclined support rod. By adjusting the position of the reinforcing plate 16 so that the reinforcing plate 16 is pressed against the inclined support rod, on the one hand, the mutual limiting effect between the support rod and the reinforcing plate 16 can be enhanced; on the other hand, when the template 200 applies pressure to the inclined first support rod, part of the load borne by the first support rod will be transferred to the reinforcing plate 16, and then transferred to the middle part of the column 11 by the reinforcing plate 16 through the support block 23, thereby reducing the load borne by the upper half of the column 11 from the first support rod, preventing the column 11 from bending.

[0046] The function of the threaded connection between the support block 23 and the reinforcing plate 16 is that when the position of the reinforcing plate 16 is adjusted by screwing the limit nut 22, the support block 23 can be set not to contact the column 11 to avoid interference with the movement of the reinforcing plate 16. When the position of the reinforcing plate 16 is adjusted, the support block 23 can be moved to abut against the column 11 by screwing the support block 23.

[0047] Furthermore, pads 3 are provided on opposite sides of the column 11, and the pads 3 are sleeved on the screw rod 21 and abut against the column 11. By providing the pads 3, the risk of bending of the column 11 can be reduced. Similarly, the side of the reinforcing plate 16 away from the column 11 can also be provided with a pad 3 to prevent the reinforcing plate 16 from bending and deformation, and the pad 3 is also sleeved on the screw rod 21.

[0048] According to the above-mentioned wall formwork single-sided support structure, the embodiment of the present application also provides a construction method of the wall formwork single-sided support structure, comprising the following steps: Step 1: Install the ground bearing member 12.

[0049] The ground bearing member 12 can be fixed on the hard ground by anchor rods or bolts so as to increase the load-bearing effect of the ground bearing member 12 .

[0050] Step 2: Install the column 11 and the balancing rod 15.

[0051] The column 11 can be connected to the ground load-bearing member 12 by screw connection. The balance rod 15 is hinged to the ground load-bearing member 12 and the column 11 respectively.

[0052] Step 3: Thread the support block 23 to the reinforcing plate 16, then sequentially pass the first support rod and the second support rod through the holes reserved on the reinforcing plate 16, and then respectively connect the opposite ends of the first support rod and the second support rod to the column 11 and the preset connection points on the template 200, thereby completing the installation of the first support rod and the second support rod. The connection method can be hinged.

[0053] Step 4: Install the tension assembly 2. Pass the screw rod 21 through the reinforcing plate 16, the support block 23 and the column 11 in sequence, and then install the limit nut 22 on the screw rod 21. By screwing the limit nut 22, the reinforcing plate 16 is gradually brought close to the column 11 or tends to approach the column 11 by the principle of tension, so that the reinforcing plate 16 is pressed against the inclined first support rod and the second support rod until the adjustment of the reinforcing plate 16 is completed.

[0054] Step 5: Rotate the support block 23 until the support block 23 abuts against the column 11, completing the construction of the single-sided support structure of the wall formwork. After the single-sided support structure of the wall formwork is completed, a steel cage is placed between the formwork 200 and the existing building structure 300, and concrete is poured and cured, and then the formwork 200 and the single-sided support structure of the wall formwork are removed, and the entire construction process can be completed.

Claims

1. A single-side support structure for a wall formwork, characterized in that: include: A support assembly (1) is arranged on a side of the template (200) away from the existing building structure (300), the support assembly (1) comprising a column (11), a ground bearing member (12), a first support unit (13) and a balancing pull rod (15); The ground bearing member (12) is fixed to the ground, the column (11) is vertically arranged and its lower end is connected to the ground bearing member (12), the first support unit (13) and the balance rod (15) are both located between the template (200) and the column (11), the first support unit (13) comprises at least one first support rod, one end of the first support rod is connected to the template (200), and the other end is connected to the upper half of the column (11); The balancing rod (15) is arranged obliquely, with its lower end connected to the ground bearing member (12) and its higher end connected to the column (11).

2. The wall formwork single-side support structure according to claim 1, characterized in that: An included angle a between the first support rod and the horizontal plane satisfies: -45°≤a≤45°.

3. The wall formwork single-side support structure according to claim 2, characterized in that: There are a plurality of first support rods, at least one of which is arranged horizontally and perpendicular to the template (200), and the remaining first support rods are arranged obliquely and the inclination angles are not completely the same.

4. The wall formwork single-side support structure according to claim 1, characterized in that: The support assembly (1) further comprises a second support unit (14), the second support unit (14) being located below the first support unit (13), the second support unit (14) comprising at least one second support rod, one end of the second support rod being connected to the template (200), and the other end of the second support rod being connected to the lower half of the column (11) or the ground bearing member (12).

5. The wall formwork single-side support structure according to claim 1, characterized in that: There are a plurality of balancing rods (15), and projections of at least two balancing rods (15) whose ends away from the upright posts (11) on the template (200) are located on opposite sides of a projection of the upright posts (11) on the template (200).

6. The wall formwork single-side support structure according to claim 4, characterized in that: The support assembly (1) further comprises a reinforcing plate (16), the first support rod and the second support rod passing through the reinforcing plate (16), and the reinforcing plate (16) is connected to the column (11).

7. The wall formwork single-side support structure according to claim 6, characterized in that: There is at least one first support rod and one second support rod arranged obliquely; The wall formwork single-sided support structure further comprises a tensioning assembly (2), and the reinforcing plate (16) is connected to the column (11) via the tensioning assembly (2); The tensioning assembly (2) comprises a screw rod (21) and a limiting nut (22), wherein the screw rod (21) horizontally penetrates the middle of the column (11) and the reinforcing plate (16), and the limiting nut (22) is provided on the side of the reinforcing plate (16) and the column (11) away from each other, and the limiting nut (22) is threadedly connected to the screw rod (21); The tensioning assembly (2) is used to drive the reinforcing plate (16) to approach the upright column (11), so that the reinforcing plate (16) applies force to the first supporting rod and the second supporting rod which are arranged obliquely.

8. The wall formwork single-side support structure according to claim 7, characterized in that: The tensioning assembly (2) further comprises a support block (23), wherein the support block (23) is located between the reinforcing plate (16) and the column (11), one end of the support block (23) is threadedly connected to the reinforcing plate (16), and the other end is in contact with the column (11).

9. The wall formwork single-side support structure according to claim 7, characterized in that: Pads (3) are provided on opposite sides of the upright column (11), and the pads (3) are sleeved on the screw rod (21) and abut against the upright column (11).

10. A construction method for a wall formwork single-side support structure, characterized in that: include: Installing ground bearing members (12); Install the column (11) and the balancing rod (15); Connecting the support block (23) to the reinforcing plate (16), and then sequentially passing the first support rod and the second support rod through the reinforcing plate (16), and completing the installation of the first support rod and the second support rod; Installing a pulling assembly (2), and then pulling the reinforcing plate (16) gradually closer to the column (11) until the reinforcing plate (16) applies force to the first support rod and the second support rod that are arranged obliquely; The support block (23) is rotated until the support block (23) abuts against the column (11).

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