Combined steel formwork anchored and reinforced by using existing column

Abstract

The utility model discloses a combined steel formwork anchored and reinforced by using an existing column, relates to the technical field of column reinforcement, and aims to solve the technical problems that a wall body needs to be dismantled firstly, then a column body needs to be reinforced, and then the wall body needs to be built again after reinforcement is completed at present. Comprising an original wall body, an original column body arranged between the original wall body, a steel formwork arranged on the outer side of the original column body, a connecting mechanism and a column hoop mechanism, the connecting mechanism and the column hoop mechanism are arranged on the steel formwork, the two ends of the steel formwork make contact with the original wall body, and the connecting mechanism comprises split bolts arranged at the front end and the side end of the steel formwork; the column hoop mechanism comprises an adjustable pulling plate. The utility model has the advantages that the section of the reinforcing column is expanded under the condition that the wall body is not dismantled, so that the hidden danger of cracks caused by the combination of different materials of the rebuilt wall body and the column body is avoided, the stability and the integrity of a building structure are enhanced, and the material purchasing cost, the labor cost and the like required for dismantling and rebuilding the wall body are saved; and the construction cost is directly reduced.

Description

Technical Field

[0001] This utility model relates to the field of column reinforcement technology, and more specifically, to a combined steel formwork that utilizes existing column anchoring for reinforcement. Background Technology

[0002] In current reinforcement projects involving enlarging the cross-section of existing wall reinforcement columns, the traditional method often involves first demolishing the wall, then reinforcing the column, and finally rebuilding the wall after reinforcement. This traditional method has many disadvantages. The demolition and subsequent rebuilding processes involve more manpower and resources, significantly increasing construction costs. Furthermore, the rebuilt wall and the reinforced column are made of different materials, and due to differences in material properties, cracks are easily generated between them during subsequent use, affecting the integrity and stability of the building structure. The cumbersome demolition and rebuilding procedures also significantly extend the entire construction period, increasing time costs and potentially impacting the overall project schedule. Therefore, we propose a method using existing column anchorage reinforcement combined steel formwork. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a combined steel formwork that uses existing column anchoring for reinforcement, so as to solve the current technical problem that it is necessary to first demolish the wall and then reinforce the column, and then rebuild the wall after the reinforcement is completed.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a combined steel formwork for anchoring and reinforcing existing columns, comprising an original column set between the original wall and the original wall, a steel formwork set on the outside of the original column, and a connecting mechanism and a column hoop mechanism set on the steel formwork. The steel formwork is L-shaped, and there are four steel formworks in total. The two ends of the steel formwork are in contact with the original wall. The connecting mechanism includes tie bolts set at the front end and side end of the steel formwork. Adjacent tie bolts are staggered. The tie bolts pass through the original column to connect adjacent steel formworks. The column hoop mechanism includes an adjustable pull plate.

[0005] Preferably, an array of post-installed rebar tie rod anchors are implanted on the original column, the post-installed rebar tie rod anchors protrude from the steel template, and nuts are installed on the post-installed rebar tie rod anchors.

[0006] Preferably, the adjustable pull plate includes two fixed plates and an adjusting screw installed between the fixed plates. The adjusting screw passes through the original wall at its middle position, and nuts are installed at both ends of the adjusting screw.

[0007] Preferably, the fixing plate includes a straight plate portion, a connecting portion, and a positioning portion. The connecting portion is bent at ninety degrees and located at the beginning of the straight plate portion. The connecting portion has a mounting hole, and the adjusting screw is located in the mounting hole.

[0008] Preferably, the positioning part is located at the end of the straight plate, the long axis of the positioning part is a downward-bent arc, the overall shape of the positioning part is U-shaped, and the spacing of the U-shaped opening matches the thickness of the fixing plate.

[0009] Preferably, there are four adjustable pull plates, adjacent adjustable pull plates are hooked together, and the four adjustable pull plates form a rectangle around the outside of the steel formwork.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model, through the design of a steel formwork structure, allows four L-shaped steel formwork panels to be perfectly positioned between the walls on the outside of the original column. Furthermore, it employs a three-stage fixing mechanism using tie bolts, post-installed rebar anchors, and column clamps to ensure the stability of the reinforced column during pouring. This eliminates the need to demolish the original wall, saving on material and labor costs associated with demolition and reconstruction, directly reducing construction costs. Moreover, by expanding the cross-section of the reinforced column without demolishing the wall, it avoids the potential for cracks caused by the combination of different materials in the reconstructed wall and column, enhancing the stability and integrity of the building structure. This solves the current problem of requiring the demolition of the wall before column reinforcement, followed by the reconstruction of the wall after reinforcement.

[0012] 2. This utility model also features an adjustable pull plate structure. Four adjustable pull plates form a rectangular clamp on the outside of the steel formwork. The distance between the fixed plates can be adjusted by adjusting the screws. Combined with the U-shaped hooks formed by the bending of the positioning part, adjacent adjustable pull plates are hooked and tightened together, providing reliable external constraints for the steel formwork. This ensures that the formwork will not shift or deform during concrete pouring, thereby guaranteeing the forming quality of the reinforced column. Moreover, the process of reinforcing the steel formwork only requires drilling screw holes in the original wall, solving the problem of large wall openings caused by the large cross-section of existing column clamps and the time and material consumption of wall patching in the later stage. This further ensures that the original wall does not need to be demolished to expand the cross-section of the reinforced column. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model;

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 This is a partial front view schematic diagram of the structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the original wall structure of this utility model;

[0017] Figure 5This is a schematic diagram of the steel formwork structure of this utility model;

[0018] Figure 6 This is a schematic cross-sectional view of the steel formwork structure of this utility model;

[0019] Figure 7 This is a schematic diagram of the column clamp mechanism of this utility model;

[0020] Figure 8 This is a front view schematic diagram of the partial column clamp mechanism of this utility model.

[0021] The following are the labels in the diagram: 101, original wall; 102, original column; 103, steel formwork; 200, connecting mechanism; 201, tie bolt; 202, post-installed rebar tie rod anchor; 300, column hoop mechanism; 301, adjustable pull plate; 302, fixing plate; 3021, straight plate section; 3022, connecting section; 3023, positioning section; 303, adjusting screw. Detailed Implementation

[0022] like Figures 1 to 8 As shown, this utility model relates to a combined steel formwork for anchoring and reinforcing existing columns, including an original column 102 set between the original wall 101 and the original wall 102, a steel formwork 103 set outside the original column 102, a connecting mechanism 200 and a column clamping mechanism 300 set on the steel formwork 103. The steel formwork 103 is L-shaped and there are four steel formworks 103 in total. Both ends of the steel formwork 103 are in contact with the original wall 101. The connecting mechanism 200 includes tie bolts 201 set at the front end and side end of the steel formwork 103. Adjacent tie bolts 201 are staggered and pass through the original column 102 to connect adjacent steel formworks 103. The column clamping mechanism 300 includes an adjustable pull plate 301. This invention allows for the reinforcement and expansion of column cross-sections without demolishing the wall, avoiding the potential cracking issues caused by the combination of different materials in the reconstructed wall and column. This enhances the stability and integrity of the building structure and saves on material procurement and labor costs associated with demolishing and rebuilding the wall, directly reducing construction costs.

[0023] Specifically, arrayed post-installed rebar anchors 202 are embedded in the original column 102. The post-installed rebar anchors 202 protrude from the steel formwork 103, and nuts are installed on the post-installed rebar anchors 202. The installation of post-installed rebar anchors 202 can initially fix the steel formwork 103.

[0024] Furthermore, the adjustable pull plate 301 includes two fixed plates 302 and an adjusting screw 303 installed between the fixed plates 302. The adjusting screw 303 passes through the original wall 101 at its middle position, and nuts are installed at both ends of the adjusting screw 303. The setting of the adjusting screw 303 can adjust the distance between the two fixed plates 302, so that the four adjustable pull plates 301 can be clamped to the outside of the steel formwork 103.

[0025] It is worth noting that the fixing plate 302 includes a straight plate portion 3021, a connecting portion 3022, and a positioning portion 3023. The connecting portion 3022 is bent at ninety degrees and located at the beginning of the straight plate portion 3021. A mounting hole is provided on the connecting portion 3022, and the adjusting screw 303 is located in the mounting hole. The bending of the connecting portion 3022 allows the adjusting screw 303 to be located above the adjustable pull plate 301, which facilitates the adjustment of the adjustable pull plate 301.

[0026] It is worth noting that the positioning part 3023 is located at the end of the straight plate part 3021. The long axis of the positioning part 3023 extends in a downward-bending arc shape, and the overall shape of the positioning part 3023 is U-shaped. The spacing of the U-shaped opening matches the thickness of the fixing plate 302. The U-shaped hooks formed by the bending of the positioning part 3023 allow adjacent adjustable pull plates 301 to hook and tighten together, providing reliable external constraints for the steel formwork 103. This ensures that the formwork will not shift or deform during concrete pouring, thereby guaranteeing the forming quality of the reinforced column.

[0027] It is worth noting that there are four adjustable pull plates 301 in total. Adjacent adjustable pull plates 301 are hooked together, and the four adjustable pull plates 301 form a rectangular clamp on the outside of the steel formwork 103. The four adjustable pull plates 301 forming a rectangular clamp on the outside of the steel formwork 103 ensures that the formwork will not shift or deform during the concrete pouring process, thereby ensuring the forming quality of the reinforced column.

[0028] Working Principle: This embodiment provides a combined steel formwork for anchoring and reinforcing existing columns. In use, holes are made in the original wall 101 for tie bolts 201 and adjusting screws 303 to pass through. Holes are made in the original column 102 for inserting post-reinforcement tie rod anchors 202. Four L-shaped steel formwork templates 103 are arrayed between adjacent original wall sections 101. Then, post-reinforcement tie rod anchors 202 are inserted according to the hole positions, and nuts are attached to the post-reinforcement tie rod anchors 202 to initially fix the four steel formwork templates 103. Tie bolts 201 are then inserted, and anchors are installed at both ends of the tie bolts 201. Nuts are used to tighten the four steel templates 103 together with tie bolts 201, thus providing secondary fixation for the steel templates 103. Finally, the column clamp mechanism 300 is installed on the outside of the steel templates 103. During installation, adjusting screws 303 are inserted into holes made in the original wall 101, and then adjustable pull plates 301 are installed at both ends of the adjusting screws 303. After the four adjustable pull plates 301 are installed, the distance between the fixing plates 302 of the adjustable pull plates 301 is adjusted by adjusting screws 303, so that the positioning parts 3023 of adjacent adjustable pull plates 301 can be hooked together and tightened (e.g., Figure 7 This completes the installation of the steel formwork 103. When dismantling the steel formwork 103 after the pouring is completed, the tie bolts 201 and the post-installed rebar anchors 202 extending from the poured column can be directly cut off and left inside the column.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A composite steel formwork system that utilizes existing column anchoring for reinforcement, characterized in that, The system includes an original column (102) set between the original wall (101) and the original column (102), a steel formwork (103) set outside the original column (102), a connecting mechanism (200) and a column hoop mechanism (300) set on the steel formwork (103). The steel formwork (103) is L-shaped and there are four steel formworks (103). Both ends of the steel formwork (103) are in contact with the original wall (101). The connecting mechanism (200) includes tie bolts (201) set at the front end and side end of the steel formwork (103). The adjacent tie bolts (201) are staggered. The tie bolts (201) pass through the original column (102) to connect the adjacent steel formworks (103). The column hoop mechanism (300) includes an adjustable pull plate (301).

2. The composite steel formwork for anchoring and reinforcing existing columns according to claim 1, characterized in that, The original column (102) is implanted with arrayed post-reinforcement tie rod anchors (202), which protrude from the steel template (103) and are fitted with nuts.

3. The composite steel formwork for anchoring and reinforcing existing columns according to claim 2, characterized in that, The adjustable pull plate (301) includes two fixed plates (302) and an adjusting screw (303) installed between the fixed plates (302). The adjusting screw (303) passes through the original wall (101) at its middle position, and nuts are installed at both ends of the adjusting screw (303).

4. The composite steel formwork for anchoring and reinforcing existing columns according to claim 3, characterized in that, The fixing plate (302) includes a straight plate part (3021), a connecting part (3022) and a positioning part (3023). The connecting part (3022) is bent at ninety degrees and is located at the beginning of the straight plate part (3021). The connecting part (3022) has an installation hole, and the adjusting screw (303) is located in the installation hole.

5. A composite steel formwork for anchoring and reinforcing existing columns according to claim 4, characterized in that, The positioning part (3023) is located at the end of the straight plate part (3021). The positioning part (3023) extends in a downward curved direction along its long axis. The overall shape of the positioning part (3023) is U-shaped, and the spacing between the U-shaped openings matches the thickness of the fixing plate (302).

6. A composite steel formwork for anchoring and reinforcing existing columns according to claim 5, characterized in that, There are four adjustable pull plates (301) in total. The adjacent adjustable pull plates (301) are hooked together, and the four adjustable pull plates (301) form a rectangle around the outside of the steel template (103).

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