Scaffold-free construction concrete independent column steel formwork and construction method

Abstract

The invention discloses a scaffold-free construction concrete independent column steel formwork and a construction method, and belongs to the technical field of building construction.The scaffold-free construction concrete independent column steel formwork comprises four steel formwork bodies of the same specification, a detachable steel grating operation platform, a scaffold-free construction platform and a scaffold-free construction platform, the detachable steel grating operation platform is connected with an insertion hole preset in the outer side of the steel formwork through a plug pin, the formwork fixing device is connected with a fixing bolt hole of the steel formwork, and the safety protection device is connected with the edge of the detachable steel grating operation platform through a hinge. By the adoption of the structure, the concrete independent column steel formwork for scaffold-free construction saves cost, reduces material loss, improves pouring quality, is simple and easy to operate, and responds to the advocated material-saving concept in four-section one-environment protection.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a scaffold-free concrete independent column steel formwork and a construction method. Background Art

[0002] At present, most of the super-high concrete independent columns in the project are constructed by setting up external scaffolding and casting wooden formwork. The traditional method requires a large amount of formwork wood, and the frame will occupy a large construction site, resulting in serious material waste and severe site restrictions, which runs counter to the concept of green construction.

[0003] In view of the existing problems, the present invention aims to provide a scaffold-free concrete independent column steel formwork and construction method with a stable, firm and highly safe structure, which is simple to construct, easy to operate, reduces material waste, eliminates the need for scaffolding installation, and does not occupy a large amount of construction site. Summary of the invention

[0004] The purpose of the present invention is to provide a scaffold-free concrete independent column steel formwork and a construction method to solve the problem that a large number of external frames need to be erected for super-high independent columns, which requires a large site area and wastes construction materials.

[0005] To achieve the above object, the present invention provides a scaffold-free concrete independent column steel formwork, comprising:

[0006] Four steel templates of the same specification, the four steel templates being connected by a corner interlocking mechanism;

[0007] A detachable steel grating operating platform, wherein the detachable steel grating operating platform is connected to a preset socket on the outer side of the steel template via a latch;

[0008] A template fixing device, the template fixing device is connected to the fixing bolt holes of the steel template;

[0009] A safety protection device is connected to the edge of the detachable steel grating operating platform through a hinge.

[0010] Preferably, the corner interlocking mechanism includes steel formwork corner interlocking fixing bolts and an operating platform hook, the steel formwork corner interlocking fixing bolts connect adjacent steel formworks through an L-shaped corner joint that passes through the steel formworks, and one end of the operating platform hook is arranged on the steel formwork, and the other end overlaps the adjacent steel formwork.

[0011] Preferably, the detachable steel grating operating platform includes a steel grating panel, an operating platform keel and a latch, the operating platform keel is arranged at the bottom of the steel grating panel, and is fixed by inserting the latch into a preset socket on the outside of the steel formwork, and adjacent detachable steel grating operating platforms are horizontally overlapped by the operating platform hooks.

[0012] Preferably, the formwork fixing device comprises a PVC pipe, and the PVC pipe is arranged on an independent concrete column for fixing the steel formwork.

[0013] Preferably, the safety protection device includes a guardrail, and the guardrail is connected to the keel of the operating platform through a hinge.

[0014] A construction method for a concrete independent column steel formwork without scaffolding construction comprises the following steps:

[0015] S1. First, use wooden formwork to cast the first section of 4m high concrete independent columns, embed PVC pipes 20cm away from the top of the columns, and reserve through holes for fixing the upper steel formwork;

[0016] S2. After the first section of concrete independent columns reaches the conditions for demolding, remove the wooden formwork, insert the tension screws (Ф22 steel bars) into the holes reserved at the top, install the steel formwork in place, and tighten the bolts to fix it;

[0017] S3. A removable steel grating operating platform is set outside the steel formwork for workers to install the upper steel formwork and pour concrete. A 1.2m high guardrail is set at the edge of the removable steel grating operating platform to ensure construction safety;

[0018] S4. The second section of concrete independent column is operated in the same way as the first section. To ensure the pouring quality, except for the first section of concrete, the pouring height of each section of concrete is ≤3m. A PVC pipe hole is reserved at the top to fix the next section of steel formwork. The steel formwork is recycled until the pouring of the concrete independent column is completed.

[0019] Preferably, the installation process of the steel formwork in S2 is:

[0020] S21, assemble the four steel templates into a column by interlocking fixing bolts at the corners of the steel templates, and insert the tension screws into the fixing bolt holes of the steel templates to lock them;

[0021] S22. Install the detachable steel grating operating platform and insert the pins into the preset sockets on the outside of the steel formwork;

[0022] S23. After the steel formwork is installed, the verticality is corrected by interlocking the fixing bolts at the corners of the steel formwork. Sponge strips are set at the joints of the upper and lower steel formworks to prevent leakage when pouring concrete, and the steel formworks are fixed with bolts through the fixing bolt holes.

[0023] Therefore, the lubricating oil directional transport mechanism based on a valveless piezoelectric micro pump using the above structure has the following beneficial effects:

[0024] (1) Reasonably reduce the investment in a large number of wooden formworks and scaffolding, save costs and reduce material loss, and improve the casting quality. It is simple and easy to operate, responding to the concept of saving materials in the "four savings and one environmental protection" advocated;

[0025] (2) The difficulties in constructing super-high independent columns were overcome by fixing the upper steel formwork with the partially cast concrete independent columns at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic plan view of a scaffold-free concrete independent column steel formwork of the present invention;

[0027] Figure 2 A plan view of a single-piece steel formwork and a detachable steel grid operating platform of a scaffold-free concrete independent column steel formwork of the present invention;

[0028] Figure 3 It is an elevation view of a single-piece steel formwork and a detachable steel grid operating platform of a scaffold-free concrete independent column steel formwork of the present invention;

[0029] Figure numerals: 1. Removable steel grating operating platform; 2. Operating platform keel; 3. Tension screws; 4. Steel formwork; 5. Interlocking fixing bolts at the corners of the steel formwork; 6. Operating platform hook; 7. Fixing bolt hole; 8. Pin. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0031] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0032] Example

[0033] like Figure 1-Figure 3As shown, a scaffold-free concrete independent column steel formwork includes four steel formworks 4 of the same specification, the steel formworks 4 are made of Q235 steel, the panel is made of 6mm thick steel plate, the frame and ribs are 12mm steel plates, the vertical ribs are 10# channel steel, the four steel formworks 4 are connected by a corner interlocking mechanism, a detachable steel grating operating platform 1, the detachable steel grating operating platform 1 is connected to the preset sockets on the outer side of the steel formwork 4 through a latch 8, the steel formwork 4 has a socket at a vertical interval of 1m, the construction site can adjust the position of the detachable steel grating operating platform 1 of each layer according to needs, a formwork fixing device, the formwork fixing device is connected to the fixing bolt holes 7 of the steel formwork 4, and a safety protection device is connected to the edge of the detachable steel grating operating platform 1 through a hinge.

[0034] The corner interlocking mechanism includes a corner interlocking fixing bolt 5 of the steel formwork 4 and an operating platform hook 6. The corner interlocking fixing bolt 5 of the steel formwork 4 connects the adjacent steel formworks 4 through an L-shaped corner joint that passes through the steel formwork 4. One end of the operating platform hook 6 is set on the steel formwork 4, and the other end overlaps the adjacent steel formwork 4.

[0035] The detachable steel grating operating platform 1 includes a steel grating panel, an operating platform keel 2 and a latch 8. The operating platform keel 2 is arranged at the bottom of the steel grating panel and is fixed by inserting the latch 8 into a preset socket on the outside of the steel template 4. Adjacent detachable steel grating operating platforms 1 are horizontally overlapped by operating platform hooks 6.

[0036] The formwork fixing device comprises a PVC pipe, which is arranged on the concrete independent column for fixing the steel formwork 4.

[0037] The safety protection device includes a guardrail, which is connected to the operating platform keel 2 through a hinge, and the guardrail is 1.2m high.

[0038] It is necessary to first make matching steel keels according to the cross-sectional dimensions of the concrete independent columns in the drawings.

[0039] A construction method for a concrete independent column steel formwork without scaffolding construction comprises the following steps:

[0040] S1. First, use wooden formwork to cast the first section of 4m high concrete independent columns, embed PVC pipes 20cm away from the top of the column, and reserve through holes to fix the upper steel formwork 4. The spacing between PVC embedded pipes is 20-30cm (specifically set according to the spacing between the fixing bolt holes 7 of the steel formwork 4 and the size of the concrete independent columns). The verticality of the first section of the column is the key to quality control and needs to be carefully checked before pouring concrete.

[0041] S2. After the first section of concrete independent columns reaches the conditions for demolding, remove the wooden formwork, insert the tension screws 3 (Ф22 steel bars) into the holes reserved at the top, install the steel formwork 4 in place, and tighten the bolts to secure it.

[0042] S21, assemble the four steel templates 4 into a column by interlocking fixing bolts 5 at the corners of the steel templates 4, and insert the tension screws 3 into the fixing bolt holes 7 of the steel templates 4 to lock them;

[0043] S22, installing the detachable steel grid operating platform 1, and inserting the latch 8 into the preset socket on the outer side of the steel template 4;

[0044] S23. After the steel formwork 4 is installed, the verticality is corrected by the interlocking fixing bolts 5 at the corners of the steel formwork 4. Sponge strips are set at the joints of the upper and lower steel formworks 4 to prevent leakage when pouring concrete, and the steel formworks are fixed by bolts through the fixing bolt holes 7.

[0045] S3. A detachable steel grating operating platform 1 is set outside the steel formwork 4 for workers to install the upper steel formwork 4 and pour concrete. A 1.2m high guardrail is set at the edge of the detachable steel grating operating platform 1 to ensure construction safety.

[0046] S4. The second section of the concrete independent column is operated in the same way as the first section. To ensure the pouring quality, except for the first section of concrete, the pouring height of each section of concrete is ≤3m. A PVC pipe hole is reserved at the top to fix the next section of steel formwork 4. The steel formwork 4 is recycled until the pouring of the concrete independent column is completed.

[0047] Therefore, the present invention adopts a scaffolding-free concrete independent column steel formwork and construction method of the above-mentioned structure, which reasonably reduces the investment in a large number of wooden formworks and scaffoldings, saves costs and reduces material loss, and improves the pouring quality. It is simple and easy to operate, and responds to the concept of saving materials in the four savings and one environmental protection.

[0048] Finally, it should be noted that the above embodiments are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concrete independent column steel formwork for scaffold-free construction, characterized in that: include: Four steel templates of the same specification, the four steel templates being connected by a corner interlocking mechanism; A detachable steel grating operating platform, wherein the detachable steel grating operating platform is connected to a preset socket on the outer side of the steel template via a latch; A template fixing device, the template fixing device is connected to the fixing bolt holes of the steel template; A safety protection device is connected to the edge of the detachable steel grating operating platform through a hinge.

2. The concrete independent column steel formwork for scaffold-free construction according to claim 1 is characterized by: The corner interlocking mechanism includes steel formwork corner interlocking fixing bolts and an operating platform hook. The steel formwork corner interlocking fixing bolts connect adjacent steel formworks through an L-shaped corner joint that passes through the steel formworks. One end of the operating platform hook is set on the steel formwork, and the other end overlaps the adjacent steel formwork.

3. The concrete independent column steel formwork for scaffold-free construction according to claim 2 is characterized by: The detachable steel grating operating platform includes a steel grating panel, an operating platform keel and the latch. The operating platform keel is arranged at the bottom of the steel grating panel and is fixed by inserting the latch into a preset socket on the outer side of the steel template. Adjacent detachable steel grating operating platforms are horizontally overlapped by the operating platform hooks.

4. The concrete independent column steel formwork for scaffold-free construction according to claim 3 is characterized in that: The template fixing device comprises a PVC pipe, and the PVC pipe is arranged on a concrete independent column for fixing the steel template.

5. The concrete independent column steel formwork for scaffold-free construction according to claim 3 is characterized by: The safety protection device comprises a guardrail, and the guardrail is connected to the keel of the operating platform through a hinge.

6. A method for constructing a concrete independent column steel formwork without scaffolding as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1. First, use wooden formwork to cast the first section of 4m high concrete independent columns, embed PVC pipes 20cm away from the top of the columns, and reserve holes for penetration; S2. After the first section of concrete independent columns meet the conditions for demolding, remove the wooden formwork, insert the tension screws into the holes reserved at the top, install the steel formwork in place, and tighten the bolts to fix it; S3. A removable steel grating operating platform is set on the outside of the steel formwork, and a 1.2m high guardrail is set on the edge of the removable steel grating operating platform; S4. The second section of the concrete independent column is operated in the same way as the first section. A PVC pipe hole is reserved at the top to fix the next section of the steel formwork. The steel formwork is reused until the concrete independent column is poured.

7. The construction method of a concrete independent column steel formwork without scaffolding construction according to claim 6 is characterized in that: The installation process of the steel formwork in S2 is: S21, assemble the four steel templates into a column by interlocking fixing bolts at the corners of the steel templates, and insert the tension screws into the fixing bolt holes of the steel templates to lock them; S22. Install the detachable steel grating operating platform and insert the pins into the preset sockets on the outside of the steel formwork; S23. After the steel formwork is installed, the verticality is corrected by interlocking fixing bolts at the corners of the steel formwork. Sponge strips are set at the joints of the upper and lower steel formworks, and they are fixed by bolts through the fixing bolt holes.

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