Adjustable free-pulling steel formwork suitable for super-high concrete column

Abstract

The utility model discloses a kind of adjustable exempt from to pull steel formworks suitable for superhigh concrete column, it is related to engineering construction technical field, including formwork, several pull bolts, the quantity of formwork is four, both ends of the formwork are opened with end mounting hole, the lateral surface of the formwork is equipped with adjusting hole two, and metal sheet is welded outside adjusting hole two. The adjustable exempt from to pull steel formworks suitable for superhigh concrete column simple structure, according to the different installation position of pull bolt in assembly process, and then have multiple installation modes, not only can be adjusted according to the cross-sectional area of column formwork in construction site, and installation and disassembly are very convenient, can be repeatedly used, while formwork, triangular plate, connecting plate and B-shaped bracket are steel structure products, bearing capacity is strong, formwork is not easy to lose stability, will not be stupid line to pull bolt hole, improve the practicability of the adjustable exempt from to pull steel formworks suitable for superhigh concrete column.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically to an adjustable, tie-free steel formwork suitable for ultra-high concrete columns. Background Technology

[0002] With the rapid development of the construction industry, especially the increasing number of high-rise and super high-rise buildings, cast-in-place concrete columns, as the core load-bearing units in frame structures, directly affect the safety, stability, and overall construction period of a project due to their construction quality. The application of ultra-high concrete columns (≥8m in height) is becoming increasingly widespread, particularly in tall spatial structures (such as high-rise buildings, bridge piers, and industrial plants). However, traditional concrete column formwork construction typically uses tie bolts for fixing, which presents the following problems:

[0003] Low construction efficiency: The installation of tie bolts is cumbersome and requires repeated adjustments, affecting the construction progress, especially when working at heights, which poses significant safety hazards. Taking a 10m high concrete column as an example, traditional methods require scaffolding and layered reinforcement, and the formwork installation time for a single column can reach 3 to 5 days, severely restricting the construction period.

[0004] Poor concrete surface quality: Tie bolt holes are prone to grout leakage and misalignment, requiring manual repairs later, increasing costs. Statistics show that repair costs account for approximately 8% to 12% of the total cost of formwork engineering, and the repaired areas may become weak points in durability.

[0005] Significant material waste: Tie bolts are disposable consumables, and ultra-high columns require a large quantity (e.g., a 10m high column requires 15-20 rows of bolts), resulting in poor economic efficiency. Data from one project shows that tie bolt waste accounts for more than 25% of the formwork material consumption.

[0006] Limited load-bearing capacity: Traditional wooden formwork or small steel formwork is insufficient to meet the lateral pressure requirements (80kN / m) of ultra-high columns. 2 It is prone to bulging or deformation, especially during high-speed pumping of concrete, where the local lateral pressure peak can reach 100 kN / m. 2 The risk of instability in traditional templates has increased significantly. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides an adjustable, tie-free steel formwork suitable for ultra-high concrete columns, solving the problems mentioned in the background section.

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable tie-free steel formwork suitable for ultra-high concrete columns, comprising a formwork and several tie bolts. The formwork has four templates, both ends of which have end mounting holes. An adjustment hole two is provided on the side of the formwork. A metal sheet is welded to the side of the formwork outside the adjustment hole two. A B-shaped bracket is inserted into the end of the formwork, and an abutment block is fixedly installed on the B-shaped bracket.

[0009] The template has mounting holes, and a connecting plate is provided on the mounting holes. Bolts are threaded onto the connecting plate and the bolts are threaded into the inner cavity of the mounting holes. A triangular plate is provided on one side of the connecting plate, and an adjustment hole is provided on one side of the triangular plate.

[0010] Preferably, the bolt passes through both the through hole and the adjustment hole and is threaded with a nut, and the bolt is provided with a washer.

[0011] Preferably, one side of the triangular plate is in contact with the abutment block or template.

[0012] Preferably, the template, triangular plate, connecting plate, B-shaped bracket, and abutment block are all made of high-strength stainless steel.

[0013] Preferably, the abutment block contacts the end of the template, and the B-shaped bracket and the abutment block are provided with through holes.

[0014] This utility model provides an adjustable, tie-free steel formwork suitable for ultra-high concrete columns, which has the following advantages:

[0015] This adjustable, tie-free steel formwork for ultra-high concrete columns uses a combination of formwork, tie bolts, adjustment hole one connecting plate, B-shaped bracket, and adjustment hole two. Its simple structure allows for multiple installation modes depending on the tie bolt installation position. It can be adjusted according to the cross-sectional area of ​​the column formwork on the construction site, and is very convenient to install and disassemble. It is reusable. Furthermore, the formwork, triangular plate, connecting plate, and B-shaped bracket are all steel structure products with strong load-bearing capacity, preventing formwork instability and avoiding deviation from the tie bolt holes, thus improving the practicality of this adjustable, tie-free steel formwork for ultra-high concrete columns. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the usage state of this utility model;

[0018] Figure 3 This is a schematic diagram showing the usage state of this utility model;

[0019] Figure 4 This is a schematic diagram showing the usage state of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the triangular plate of this utility model;

[0021] Figure 6 This is a top view of the structure of the template of this utility model.

[0022] In the diagram: 1. Template; 2. End mounting hole; 3. Mounting hole; 4. Triangular plate; 5. Adjustment hole one; 6. Connecting plate; 7. B-shaped bracket; 8. Bolt; 9. Adjustment hole two; 10. Metal sheet; 11. Abutment block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1: Refer to Figure 2 and Figure 6 This utility model provides an adjustable, tie-free steel formwork suitable for ultra-high concrete columns, including formwork 1 and tie bolts 8. There are four formwork 1s, and each of the four formwork 1s has end mounting holes 2 at both ends. The side of the formwork 1 has adjustment holes 9, and a metal sheet 10 is welded to the side of the formwork 1 outside the adjustment holes 9.

[0025] See Figure 2 When in use, place the four templates 1 in a windmill shape, pass one end of the bolt 8 through the adjustment hole 2 9 on one template 1 and the end mounting hole 2 on the other template 1, and fix them with nuts. The bolt 8 is fitted with a washer, and the bolt 8 punctures the metal sheet 10 at the end of the corresponding adjustment hole 2 9. After use, a new metal sheet 10 needs to be welded to the end of the adjustment hole 2 9.

[0026] Repeat the above steps to assemble the four templates 1. By adjusting the holes 9 at different installation positions, column templates with different cross-sectional dimensions can be adapted. Figure 2 Formwork A, B, C, D, and E can be adapted to square column formwork of 1200mm, 1100mm, 1000mm, 900mm, and 800mm respectively.

[0027] Example 2;

[0028] Reference Figure 1 , Figure 5 , Figure 6This utility model provides an adjustable, tie-free steel formwork suitable for ultra-high concrete columns, including a formwork 1 and tie bolts 8. There are four formwork 1s. Each formwork 1 has end mounting holes 2 at both ends. An adjustment hole 9 is provided on the side of the formwork 1. A metal sheet 10 is welded to the side of the formwork 1 outside the adjustment hole 9. A B-shaped bracket 7 is inserted into the end of the formwork 1. An abutment block 11 is fixedly installed on the B-shaped bracket 7 and contacts the end of the formwork 1. Through holes are provided on the B-shaped bracket 7 and the abutment block 11.

[0029] The template 1 has an installation hole 3, and a connecting plate 6 is provided on the installation hole 3. A bolt is threaded on the connecting plate 6 and the bolt thread is fitted into the inner cavity of the installation hole 3. A triangular plate 4 is provided on one side of the connecting plate 6, and an adjustment hole 5 is provided on one side of the triangular plate 4. One side of the triangular plate 4 is in contact with the abutment block 11.

[0030] In use, place the four templates 1 in a U-shape, insert the bolts 8 through the through holes and the adjustment holes 5 and thread the nuts, then connect the triangular plate 4 with the abutment block 11 and the B-shaped bracket 7, and then assemble the four templates 1. This can be used for 1150mm square column templates.

[0031] Example 3;

[0032] Reference Figure 3 and Figure 4 , Figure 5 , Figure 6 This utility model provides an adjustable, tie-free steel formwork suitable for ultra-high concrete columns, comprising a formwork 1. The formwork 1 consists of four templates, each with end mounting holes 2 at both ends, and adjustment holes 9 on the side of the template 1. A metal sheet 10 is welded to the side of the template 1 outside the adjustment holes 9.

[0033] The template 1 has an installation hole 3, and a connecting plate 6 is provided on the installation hole 3. A bolt is threaded on the connecting plate 6 and the bolt thread is fitted into the inner cavity of the installation hole 3. A triangular plate 4 is provided on one side of the connecting plate 6, and an adjustment hole 5 is provided on one side of the triangular plate 4. One side of the triangular plate 4 is in contact with the template 1.

[0034] In use, the four templates 1 are placed in a windmill shape. One end of the bolt 8 is passed through the adjustment hole 9 on one of the templates 1 and the adjustment hole 5 on the corresponding triangular plate 4, and then secured with nuts and washers.

[0035] Repeat the process of connecting the four templates 1 to the four triangular plates 4, and then assemble the four templates 1. By installing the adjustment holes 2 9 and 1 5 at different positions, it is possible to adapt to column templates with different cross-sectional sizes. This assembly method can adapt to square column templates of 1050mm, 950mm, 850mm, 750mm, 700mm, 650mm, 550mm, and 500mm.

[0036] Please see Figure 3 and Figure 4 , Figure 3 and Figure 4 The letters F, G, H, I, J, K, N, and M correspond to square column formwork of 1050mm, 950mm, 850mm, 750mm, 700mm, 650mm, 550mm, and 500mm respectively.

[0037] It should be noted that the pull bolt 8 punctures the metal sheet 10 at the end of the corresponding adjustment hole 2 9. After use, a new metal sheet 10 needs to be welded to the end of the adjustment hole 2 9 for future use.

[0038] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0040] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable, tie-free steel formwork suitable for ultra-high concrete columns, comprising a formwork (1) and several tie bolts (8), characterized in that: The template (1) consists of four parts. Each template (1) has an end mounting hole (2) at both ends. An adjustment hole (9) is provided on the side of the template (1). A metal sheet (10) is welded to the side of the template (1) and outside the adjustment hole (9). A B-shaped bracket (7) is inserted into the end of the template (1). An abutment block (11) is fixedly installed on the B-shaped bracket (7). The template (1) has an installation hole (3), the installation hole (3) has a connecting plate (6), the connecting plate (6) has a threaded bolt installed on it, and the bolt threaded into the cavity of the installation hole (3). A triangular plate (4) is provided on one side of the connecting plate (6), and an adjustment hole (5) is provided on one side of the triangular plate (4).

2. The adjustable, tie-free steel formwork for ultra-high concrete columns according to claim 1, characterized in that: The bolt (8) passes through the through hole and the adjustment hole (5) and is threaded with a nut. A washer is provided on the bolt (8).

3. The adjustable, tie-free steel formwork for ultra-high concrete columns according to claim 1, characterized in that: One side of the triangular plate (4) is in contact with the abutment block (11) or the template (1).

4. The adjustable, tie-free steel formwork for ultra-high concrete columns according to claim 1, characterized in that: The template (1), triangular plate (4), connecting plate (6), B-shaped bracket (7), and abutment block (11) are all made of high-strength stainless steel.

5. The adjustable, tie-free steel formwork for ultra-high concrete columns according to claim 1, characterized in that: The contact block (11) contacts the end of the template (1), and the B-shaped bracket (7) and the contact block (11) are provided with through holes.

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