Tensioning supporting device for single-side formwork erecting and using method of tensioning supporting device

Abstract

The invention relates to a tensioning and supporting device for single-side formwork erecting and a using method thereof.The tensioning and supporting device for single-side formwork erecting is used for supporting a formwork in basement outer wall single-side formwork erecting construction in cooperation with an enclosure wall and the ground, and the tensioning and supporting device comprises a cross brace, a steel inhaul cable and a tensioning jack; the upper end and the lower end of the vertical support are connected with the enclosure wall and the ground correspondingly and abut against the formwork. The transverse supports are evenly distributed on the sides, back on to the formwork, of the vertical supports from top to bottom, and the transverse supports are perpendicular to the vertical supports. The enclosure wall and the ground are connected through the vertical supports to support the formwork, after the tensioning jacks on the vertical supports are started, prestress can be applied to the transverse supports through the steel inhaul cables, the transverse supports enable the vertical supports to generate certain deformation so as to cope with loads borne by the vertical supports in the construction process, and therefore the vertical supports are prevented from being pressed and deformed in the construction process; the purpose of stably supporting the formwork is achieved, the supporting effect of the formwork can be guaranteed, and the occupied space of the supporting device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a tensioning support device for single-side formwork and a use method thereof. Background Art

[0002] Usually, the outer walls of basements of industrial and civil buildings are constructed using the double-sided formwork method. This method has certain requirements for the construction site. There must be at least 0.8m of operating space on the outside of the outer wall to basically meet the double-sided formwork operation requirements. If the site is small and cannot meet the conditions for double-sided formwork, it will be very difficult to complete the construction smoothly.

[0003] Traditional single-sided formwork usually uses square steel pipes to make a large tripod as a fixed frame for single-sided formwork. Although this method can complete the construction task, the material cost is relatively high, and the large tripod takes up a lot of indoor operating space, which seriously affects the construction of other processes and the construction period. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art, to provide a tensioning support device for single-sided formwork and a method of using the same, so as to solve the problem in the prior art that the support frame for single-sided formwork occupies a large space and affects the construction.

[0005] To achieve the above-mentioned purpose, the present invention provides a tensioning support device for single-sided formwork and a method for using the same, which is used to support the formwork in the single-sided formwork construction of the basement exterior wall in cooperation with the enclosure wall and the ground, wherein the tensioning support device comprises a cross brace, a steel cable and a tensioning jack;

[0006] The upper and lower ends of the vertical support are respectively connected to the enclosure wall and the ground, and abut against the template;

[0007] The horizontal braces are evenly arranged from top to bottom on the side of the vertical braces facing away from the template, and the horizontal braces are perpendicular to the vertical braces;

[0008] The upper end of the steel cable is connected to the upper end of the vertical support, the lower end of the steel cable is passed through the lower end of the vertical support, and the cable body of the steel cable is pressed against the end of the horizontal support that is connected to the vertical support.

[0009] The tensioning jack is arranged at the lower end of the vertical support, and the protruding end of the tensioning jack is connected to one end of the steel cable passing through the lower end of the vertical support.

[0010] By adopting this technical solution, vertical supports are used to connect the retaining wall and the ground to support the formwork. After the tensioning jacks on the vertical supports are started, prestress can be applied to the transverse supports through steel cables. The transverse supports will cause the vertical supports to deform to a certain extent to cope with the loads on the vertical supports themselves during construction, thereby preventing the vertical supports from being compressed and deformed during construction, thereby achieving the purpose of stably supporting the formwork. This can not only ensure the supporting effect of the formwork, but also reduce the space occupied by the supporting device, and will not cause problems that hinder the construction of other processes.

[0011] Furthermore, both upper and lower ends of the vertical support are provided with connection holes, and the vertical support is connected to the retaining wall and the ground respectively through the connection holes and bolts.

[0012] By adopting this technical solution, the vertical support has a detachable function and can be recycled after use, which is in line with the concept of green construction.

[0013] Furthermore, the lengths of the plurality of evenly distributed horizontal supports decrease gradually from the middle of the vertical support to both sides.

[0014] By adopting this technical solution, the length of the horizontal brace determines the strength of the prestressed stress at that position. It is set to decrease in length from the middle of the vertical brace to both sides to adapt to the situation where the middle of the formwork is under high pressure during actual construction. It can improve the anti-deformation effect of the vertical brace, thereby increasing the support stability of the formwork when it is under pressure during construction.

[0015] Furthermore, a through hole is formed at one end of the horizontal brace which is opposite to the vertical brace, and the steel cable passes through the horizontal brace through the through hole.

[0016] By adopting this technical solution, the correlation between the cross brace and the steel cable is increased, avoiding the situation where the steel cable is separated from the cross brace and affects the stable support.

[0017] Furthermore, the upper end of the steel cable is connected with a fork ear anchor, and is rotatably connected to the upper end of the vertical support through the fork ear anchor.

[0018] By adopting this technical solution, the provision of a fork ear anchor and a rotational connection with the upper end of the vertical support can reduce the wear on the upper end of the steel cable, thereby increasing the stability of the connection between the steel cable and the upper end of the vertical support.

[0019] Furthermore, a lock buckle is installed at the lower end of the vertical support, and the steel cable passes through the lower end of the vertical support through the lock buckle.

[0020] By adopting this technical solution, a lock is set to achieve the connection between the steel cable and the lower end of the vertical support, while also providing the function of locking the steel cable.

[0021] The present invention also provides a method for using a tension support device for single-sided formwork, which is based on the template and the surrounding wall to form a single-sided formwork for basement exterior wall construction, including the following steps:

[0022] S1. Place the vertical support against the side of the formwork facing away from the retaining wall;

[0023] S2. After adjusting the vertical support position, connect its upper end to the retaining wall and its lower end to the ground;

[0024] S3, start the tensioning jack to apply prestress to the horizontal brace and vertical brace by pulling the steel cable;

[0025] S4. Tighten the lock to complete the installation.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] Vertical supports are used to connect the retaining wall and the ground to support the formwork. After the tensioning jacks on the vertical supports are activated, prestress can be applied to the horizontal supports through steel cables. The horizontal supports will cause the vertical supports to deform to a certain extent to cope with the loads on the vertical supports themselves during construction, thereby preventing the vertical supports from being compressed and deformed during construction, thereby achieving the purpose of stably supporting the formwork. This can not only ensure the supporting effect of the formwork, but also reduce the space occupied by the supporting device, and will not hinder the construction of other processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the use state of the tension support device for single-side formwork in the present invention;

[0029] Figure 2 It is a schematic structural diagram of the tensioning support device used for single-sided formwork in the present invention.

[0030] Explanation of the reference numerals: 1. retaining wall; 2. steel cage; 3. formwork; 4. supporting keel; 51. vertical brace; 52. horizontal brace; 53. steel cable; 54. tensioning jack; 55. fork ear anchor; 56. lock. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0032] Please refer to the attached Figure 1-2The present invention provides a tensioning support device for single-sided formwork, which is used to support the formwork 3 in the single-sided formwork construction of the basement exterior wall in cooperation with the enclosure wall 1 and the ground, and is characterized in that the tensioning support device includes 51, a horizontal brace 52, a steel cable 53 and a tensioning jack 54; the upper and lower ends of the vertical brace 51 are respectively connected to the enclosure wall 1 and the ground, and abut against the formwork 3; the horizontal brace 52 is evenly arranged from top to bottom on the side of the vertical brace 51 facing away from the formwork 3, and the horizontal brace 52 and the vertical brace 51 are perpendicular to each other; the upper end of the steel cable 53 is connected to the upper end of the vertical brace 51, the lower end of the steel cable 53 is passed through the lower end of the vertical brace 51, and the cable body of the steel cable 53 is pressed against the end of the horizontal brace 52 that is connected to the vertical brace 51; the tensioning jack 54 is arranged at the lower end of the vertical brace 51, and the protruding end of the tensioning jack 54 is connected to the end of the steel cable 53 passing through the lower end of the vertical brace 51;

[0033] The vertical supports 51 are used to connect the retaining wall 1 and the ground to support the formwork 3. After the tensioning jacks 54 on the vertical supports 51 are started, prestress can be applied to the transverse supports 52 through the steel cables 53. The transverse supports 52 will cause the vertical supports 51 to produce a certain deformation to cope with the load on the vertical supports 51 themselves during construction, thereby preventing the vertical supports 51 from being compressed and deformed during construction, thereby achieving the purpose of stably supporting the formwork 3. This can not only ensure the supporting effect of the formwork 3, but also reduce the space occupied by the supporting device, and will not cause problems that hinder the construction of other processes.

[0034] In order to make the tension support device recyclable after use to comply with the green construction concept, tension holes are provided at both upper and lower ends of the vertical support 51, and the vertical support 51 is connected to the retaining wall 1 and the ground respectively through the tension holes and bolts.

[0035] In order to adapt to the characteristic that the force in the middle of the formwork 3 is greater than the force on the upper and lower sides during pouring, the lengths of a number of evenly distributed transverse braces 52 are set to decrease from the middle of the vertical brace 51 to both sides. The length of the transverse brace 52 determines the strength of the prestressed stress at this position. When it is set to decrease in length from the middle of the vertical brace 51 to both sides, it can adapt to the situation where the middle of the formwork 3 is subjected to a large degree of pressure during actual construction, and can improve the anti-deformation effect of the vertical brace 52 to increase the supporting stability of the formwork 3.

[0036] In order to increase the reliability of the steel cable 53 and the degree of fit with the horizontal brace 52 , a through hole is formed at one end of the horizontal brace 52 which is opposite to the vertical brace 51 , and the steel cable 53 passes through the horizontal brace 52 through the through hole.

[0037] In order to achieve the connection between the steel cable 53 and the vertical support 51 and at the same time provide the function of locking the steel cable 53, a lock buckle 56 is installed at the lower end of the vertical support 51, and the steel cable 53 passes through the lower end of the vertical support 51 through the lock buckle 56.

[0038] The present invention also provides a method for using a tensioning support device for single-sided formwork, which is based on the single-sided formwork formed by the template 3 and the retaining wall 1 to construct the basement exterior wall, including the following steps: S1, after setting the steel cage 2 and the template 3 on one side of the retaining wall 1, setting the support keel 4 on the side of the template 3 facing away from the retaining wall 1 for basic support, and then placing the vertical support 51 against the surface of the support keel 4 on the side of the template 3 facing away from the retaining wall 1; S2, after adjusting the position of the vertical support 51, connect the upper end of the vertical support 51 to the retaining wall 1 by bolts, and connect the lower end to the ground by bolts; S3, start the tensioning jack 54 at the lower end of the vertical support 51, and pull the steel cable 53 through the tensioning jack 54 to apply prestress to the horizontal support 52 and the vertical support 51, and the prestress causes the vertical support 51 to produce a certain deformation; S4, lock the lock buckle 56 to complete the installation.

[0039] Furthermore, during the pouring of concrete for the basement exterior wall, the deformation of the vertical support 51 can be adjusted by the long-tooth jack 54 according to the actual deformation of the template 3 to ensure that the template 3 is in a vertical state, thereby increasing the stability and effect of the support.

[0040] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A tensioning support device for single-sided formwork, used to support the formwork in single-sided formwork construction of basement exterior walls in cooperation with the surrounding wall and the ground, characterized in that: The tensioning support device includes a cross brace, a steel cable and a tensioning jack; The upper and lower ends of the vertical support are respectively connected to the enclosure wall and the ground, and abut against the template; The horizontal braces are evenly arranged from top to bottom on the side of the vertical braces facing away from the template, and the horizontal braces are perpendicular to the vertical braces; The upper end of the steel cable is connected to the upper end of the vertical support, the lower end of the steel cable is passed through the lower end of the vertical support, and the cable body of the steel cable is pressed against the end of the horizontal support that is connected to the vertical support. The tensioning jack is arranged at the lower end of the vertical support, and the protruding end of the tensioning jack is connected to one end of the steel cable passing through the lower end of the vertical support.

2. The tension support device for single-sided formwork and the method of using the same according to claim 1, characterized in that: The upper and lower ends of the vertical support are provided with connection holes, and the vertical support is respectively connected to the enclosure wall and the ground through the connection holes and bolts.

3. The tension support device for single-sided formwork and the method of using the same according to claim 1, characterized in that: The lengths of the evenly distributed horizontal supports decrease gradually from the middle of the vertical supports to both sides.

4. The tension support device for single-sided formwork and the method of using the same according to claim 1, characterized in that: A through hole is formed at one end of the horizontal brace which is opposite to the vertical brace, and the steel cable passes through the horizontal brace through the through hole.

5. The tension support device for single-sided formwork and the method of using the same according to claim 1, characterized in that: The upper end of the steel cable is connected with a fork ear anchor and is rotatably connected to the upper end of the vertical support through the fork ear anchor.

6. The tension support device for single-sided formwork and the method of using the same according to claim 1, characterized in that: A lock buckle is installed at the lower end of the vertical support, and the steel cable passes through the lower end of the vertical support through the lock buckle.

7. A method for using the tension support device for single-sided formwork according to any one of claims 1 to 6, based on the single-sided formwork formed by the template and the surrounding wall to carry out basement exterior wall construction, characterized in that: The steps include: S1. Place the vertical support against the side of the formwork facing away from the retaining wall; S2. After adjusting the position of the vertical support, connect its upper end to the retaining wall and its lower end to the ground; S3, start the tensioning jack to apply prestress to the horizontal brace and vertical brace by pulling the steel cable; S4. Tighten the lock to complete the installation.

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