Non-trepanning column-wrapping keel construction method for concrete column

Abstract

The invention relates to a construction method for a non-perforated column-wrapping keel of a concrete column, which comprises the following steps of: bending a galvanized steel sheet in the middle into a 90-degree right angle, bending two end parts into 135-degree angles, enabling the distance between a 90-degree angle folding point and a 135-degree angle folding point at one end to be equal to the width of the front surface of the concrete column, and enabling the distance between the 90-degree angle folding point and the 135-degree angle folding point at the other end to be equal to the width of the side surface of the concrete column; two galvanized steel sheets are combined and then wrapped on the outer surface of the concrete column, and the angle edges of the 135-degree angle are fixed; three galvanized steel plate rings are arranged at the upper midpoint of the concrete column; the galvanized square tubes are welded on the outer surface of the galvanized steel sheet, and two galvanized square tubes are arranged on each surface; longitudinal square tube keels are welded at the end parts of the galvanized square tubes and are parallel to the concrete columns; after the longitudinal square tube keels are welded, the transverse square tube keels are welded according to the width size of the hardcover panel; and after welding construction is completed, anti-rust paint is brushed for rust prevention. According to the construction method, the concrete column is not damaged.

Description

Technical Field

[0001] The invention belongs to the technical field of building decoration construction, and particularly relates to a construction method for a concrete column without opening a hole in the column keel. Background Art

[0002] In recent years, fully-decorated houses have become a trend, accepted by the general public and construction companies, and have become a strategy and measure for real estate to expand the market and accelerate marketing.

[0003] In order to facilitate interior decoration modification, the current construction process of designing building columns as concrete columns wrapped with column keels is often used. Specifically, The first method is to reserve embedded bolts and steel plates on the concrete columns and around the concrete, and then weld galvanized square tubes on the reserved steel plates to act as the keel of the fine decoration panel. This is a public process. Although the structure and firmness are the most stable, the steel bars of the concrete columns are tied, the positioning of the steel plate bolts during the pre-embedded process, the vibration of the concrete during the pouring process, and the finished product damage by the workers. The huge amount of engineering work for reserving embedded bolts and steel plates results in that the final products of the embedded plates and embedded bolts are often unsatisfactory. Instead, the reserved steel plates on the concrete columns have to be chiseled again, which affects the structural damage of the concrete columns.

[0004] The second method is to fix the steel plate with embedded steel bars and chemical bolts after the construction of the concrete column is completed, and then weld the keel of the hardcover panel on the steel plate. This is the most common construction method at present. This method is fast in construction, accurate in positioning, and has a large fault tolerance rate. However, the biggest disadvantage of this method is that a huge number of holes are drilled in the concrete body for embedding steel bars and using chemical bolts. In addition, it is very easy to cause permanent damage to the steel bars in the concrete during the drilling process, and it is easy to cause irreparable structural damage to the concrete body structure. After the hole position is wrong, the hole is often re-drilled, causing more serious structural damage to the concrete structure. Summary of the invention

[0005] The technical problem to be solved by the present invention is the problem that the concrete column is damaged when the decorative structure is fixed on the concrete column.

[0006] The present invention solves the above-mentioned problem by adopting the following technical solution: A method for constructing a concrete column keel without opening holes, specifically comprising the following steps: Step 1: Make a steel plate ring for column wrapping: Use a galvanized steel plate, bend the middle part into a 90° right angle, and bend the two ends into a 135° angle to form a first galvanized steel plate, the distance from the 90° angle turning point to the 135° angle turning point at one end is equal to the width of the front surface of the concrete column, and the distance from the 90° angle turning point to the 135° angle turning point at the other end is equal to the width of the side surface of the concrete column; the second galvanized steel plate is made in the same way, and the two galvanized steel plates are combined into a rectangular steel plate ring for column wrapping; Step 2: Attach rubber gaskets to the inner surfaces of the first galvanized steel plate and the second galvanized steel plate, and then wrap them to the outer surface of the concrete column. The 135° angles of the two ends of the two galvanized steel plates are bent tightly together, and then fastened with bolts to firmly fix the galvanized steel plate ring to the concrete column; Step 3: Repeat the operation of step 2, and install the galvanized steel plate ring at 300mm from the bottom of the concrete column, 300mm from the top of the concrete column, and in the middle of the concrete column; Step 4: Weld galvanized square tubes on the outer surface of the galvanized steel plate, with four sides in total, and arrange two galvanized square tubes on each side; Step 5: Weld the longitudinal square tube keel at the end of the galvanized square tube, and the longitudinal square tube keel is parallel to the concrete column; Step 6: After the longitudinal square tube keel is welded, weld the transverse square tube keel according to the width of the hardcover panel; Step 7: After the welding construction is completed, apply anti-rust paint on the surface of the galvanized steel plate ring, longitudinal square tube keel and transverse square tube keel to prevent rust.

[0007] Compared with the prior art, the present invention adopting the above structure has the following beneficial effects: This construction method effectively prevents concrete cracking caused by drilling holes in the concrete column body to plant reinforcement and using chemical bolts, avoids damage to the steel bars in the concrete during the drilling process, and is flexible and convenient to construct. This solution can appropriately increase or decrease the number of galvanized steel plates for column wrapping according to the height of the concrete column, and can also add galvanized steel plates for column wrapping at various locations such as wire boxes and weld them to the galvanized steel plates for column wrapping, effectively saving various construction procedures, saving manpower and material costs, and also effectively preventing random drilling of holes in concrete columns to prevent damage to the main structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the structure of the first galvanized steel sheet of the present invention; Figure 2 It is the appearance diagram of installing galvanized steel sheet ring on concrete column; Figure 3 It is a schematic diagram of an example of the arrangement of galvanized steel plate rings; Figure 4 It is a schematic diagram of the layout structure of galvanized square and rectangular tubes; Figure 5It is the reference drawing for the construction of longitudinal square tube keel; Figure 6 It is a reference drawing for the construction of horizontal square tube keels; Figure 7 It is a top-down structural diagram of the column-wrapping structure of the present invention.

[0009] In the figure: 1. galvanized steel plate ring; 2. concrete column; 3. galvanized square tube; 4. longitudinal square tube keel; 5. transverse square tube keel; 6. rubber gasket; 101. 90° angle inflection point; 102. 135° angle inflection point. DETAILED DESCRIPTION

[0010] The present invention will be further described below in conjunction with embodiments, the purpose of which is only to provide a better understanding of the content of the present invention. Therefore, the examples given do not limit the protection scope of the present invention.

[0011] Concrete column: It is the main supporting structure of the building, and it is the intermediate supporting column between the top and bottom plates in the room.

[0012] The keel is used to construct a support system indoors and serves as a fixing foundation for interior decorative panels.

[0013] The hardcover panels are used to cover unsightly structural parts and serve as aesthetically pleasing surface trims for side walls and partition walls.

[0014] The invention provides an indoor decoration construction method based on a concrete column for fixing a foundation, aiming to solve the problem of damage to the concrete column when fixing a structure on the concrete column in the existing practice.

[0015] A concrete column without opening a hole to wrap the column keel construction process, see Figures 1 to 7 , specifically including the following steps: Step 1: Make a steel plate ring for column wrapping: Use a galvanized steel plate, bend the middle part to a 90° right angle, and bend the two ends to a 135° angle to form the first galvanized steel plate, the distance between the 90° angle fold point 101 and the 135° angle fold point 102 at one end is equal to the width of the front surface of the concrete column 2, and the distance between the 90° angle fold point 101 and the 135° angle fold point 102 at the other end is equal to the width of the side surface of the concrete column 2. The second galvanized steel plate is made in the same way, and the two galvanized steel plates are combined into a rectangular steel plate ring for column wrapping. The galvanized steel plate can be selected to have a thickness of 6mm and a length greater than 400mm, which is the sum of the widths of the two adjacent sides of the concrete column 2.

[0016] Step 2: Attach rubber gasket 6 to the inner surfaces of the first galvanized steel plate and the second galvanized steel plate, and then wrap them to the outer surface of the concrete column 2. The rubber gasket 6 can be selected to be 4mm thick; the 135° angle edges of the two ends of the two galvanized steel plates are bent tightly together, and then fastened with bolts to firmly fix the galvanized steel plate ring 1 and the concrete column 2.

[0017] Step 3: Repeat the operation of step 2, and install the galvanized steel plate ring 1 at 300 mm from the bottom of the concrete column 2, 300 mm from the top of the concrete column 2, and in the middle of the concrete column 2 respectively.

[0018] Step 4: Weld galvanized square tubes 3 on the outer surface of the galvanized steel plate, four sides in total, with two galvanized square tubes 3 arranged on each side.

[0019] Step 5: Weld a longitudinal square tube keel 4 at the end of each galvanized square tube 3 , and the longitudinal square tube keel 4 is parallel to the concrete column 2 .

[0020] Step 6: After the longitudinal square tube keel 4 is welded, the transverse square tube keel 5 is welded according to the width of the hardcover panel. If a structure such as a wire box is set on the concrete column 2, a galvanized steel plate can be added to the position of the wire box to be welded on the galvanized steel plate to effectively save various construction processes, save manpower and material costs, and effectively prevent random openings on the concrete column 2 to prevent damage to the main structure.

[0021] Step 7: After the welding construction is completed, anti-rust paint is applied on the surface of the galvanized steel plate ring 1, the longitudinal square tube keel 4 and the transverse square tube keel 5 to prevent rust.

[0022] Beneficial effects of the present invention: The use of this construction process can effectively prevent concrete cracking caused by drilling holes in the concrete column body and planting steel bars and using chemical bolts, and avoid damage to the steel bars in the concrete during the drilling process. The construction is flexible and convenient. This solution can appropriately increase or decrease the number of galvanized steel plates for column wrapping according to the height of the concrete column, and can also add galvanized steel plates for column wrapping at various locations such as wire boxes and weld them to the galvanized steel plates for column wrapping, effectively saving various construction procedures, saving manpower and material costs, and effectively preventing random drilling of holes in concrete columns to prevent damage to the main structure.

[0023] The above description is only a preferred feasible embodiment of the present invention, and does not limit the scope of rights of the present invention. All equivalent changes made using the contents of the present specification and its drawings are included in the scope of rights of the present invention.

Claims

1. A method for constructing a concrete column keel without opening holes, characterized in that: The specific steps include: Step 1: Making a column-wrapping steel plate ring (1): using a galvanized steel plate, bending the middle portion to a 90° right angle, and bending the two ends to a 135° angle to form a first galvanized steel plate, wherein the distance between the 90° angle turning point (101) and the 135° angle turning point (102) at one end is equal to the width of the front surface of the concrete column (2), and the distance between the 90° angle turning point (101) and the 135° angle turning point (102) at the other end is equal to the width of the side surface of the concrete column (2); using the same method to make a second galvanized steel plate, the two galvanized steel plates are combined into a rectangular column-wrapping steel plate ring (1); Step 2: Attach rubber gaskets (6) to the inner surfaces of the first galvanized steel plate and the second galvanized steel plate, and then wrap them around the outer surface of the concrete column (2). The 135° angles of the two ends of the two galvanized steel plates are bent tightly together, and then bolts are used to tighten them so that the galvanized steel plate ring is firmly fixed to the concrete column (2); Step 3: Repeat the operation of step 2 to install the galvanized steel plate ring at 300 mm from the bottom of the concrete column (2), 300 mm from the top of the concrete column (2), and in the middle of the concrete column (2); Step 4: Welding galvanized square tubes (3) on the outer surface of the galvanized steel plate, with four surfaces in total, and arranging two galvanized square tubes (3) on each surface; Step 5: welding a longitudinal square tube keel (4) to the end of the galvanized square tube (3), wherein the longitudinal square tube keel (4) is parallel to the concrete column (2); Step 6: After the longitudinal square tube keel (4) is welded, the transverse square tube keel (5) is welded according to the width of the hardcover panel; Step 7: After the welding construction is completed, anti-rust paint is applied to the surface of the galvanized steel plate ring, the longitudinal square tube keel (4) and the transverse square tube keel (5).

2. The method for constructing a concrete column keel without opening holes according to claim 1 is characterized in that: If a wire box is provided on the concrete column (2), a galvanized steel plate ring is additionally provided at the position of the wire box.

3. The method for constructing a concrete column keel without opening holes according to claim 1, characterized in that: The material used to make the first galvanized steel plate and the second galvanized steel plate has a thickness of 6 mm and a length greater than 400 mm, which is the sum of the widths of two adjacent surfaces of the concrete column (2).

4. The method for constructing a concrete column (2) without opening a hole for the column keel according to claim 1, characterized in that: The thickness of the rubber gasket (6) is 4 mm.

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