Construction method for scaffold buttress on slope

Abstract

The invention discloses a construction method of a scaffold buttress on a slope, and the construction method comprises the following steps: S1, cleaning a concrete surface; s2, carrying out pay-off operation; s3, punching is conducted, steel bars are planted, four steel bars are arranged in each buttress, the four steel bars are distributed in a central symmetry mode with the vertical steel pipe as the center, and the upper ends of the steel bars are bent towards the side of the vertical steel pipe to form an L shape; s4, binding annular ribs for reinforcement; s5, a horizontal table is reserved in the center of the buttress in advance, and the vertical steel pipe is fixedly connected with the four steel bars through the four positioning steel bars; s6, a formwork is erected; s7, concrete buttresses are poured; and S8, after the concrete is completely solidified, a scaffold is built on the vertical steel pipes, and construction is completed. Compared with the prior art, the site application range is wide, the scaffold can be erected on the concrete face with the inclination angle of 30-70 degrees, safety and perpendicularity are high, and it can be guaranteed that the perpendicularity of the vertical steel pipe meets the requirement.

Description

Technical Field

[0001] The present invention relates to the field of construction engineering, and particularly to a construction method for scaffolding piers on slopes. Background Art

[0002] During the construction of existing scaffolding erection, the basic materials of the scaffolding generally use wooden cushion boards or I-beam cushion blocks, mainly to play a role in stabilizing the frame body for some projects with slopes less than 30°. However, in some projects, the slope surface is very large, and the inclination angle is greater than 30°, even up to 70°. When using a wooden cushion board to erect a scaffolding on such a slope, the wooden cushion board cannot play a role in stabilizing the frame body, and serious safety accidents may occur in severe cases. At present, there is no application of erecting a scaffolding on such slopes in China.

[0003] During the construction of the pool wall of a large sewage treatment plant by our company, it was found that the slope of the slope surface was extremely steep, reaching 70° at the steepest place, and the slope surface was very high, and the slope surface was poured with a concrete surface. It was impossible to directly build a scaffolding on the slope surface with cushion blocks, which greatly affected the construction progress of the project. Summary of the Invention

[0004] The present invention provides a construction method for scaffolding piers on slopes that solves the above problems, which is applicable to projects with slopes of concrete surfaces or hard soil surfaces and inclination angles greater than 30° - 70°. It not only solves the above problems but also meets the requirements of scaffolding construction safety and construction quality.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: a construction method for scaffolding piers on slopes, and the construction method is as follows.

[0006] S1. Clean the concrete surface;

[0007] S2. Carry out line laying operations to determine the position and size of each pier;

[0008] S3. Use a drill to drill holes at the drilling positions on the concrete surface and carry out rebar planting. There are four steel bars in each pier, and the four steel bars are symmetrically distributed around the vertical steel pipe. After the lower ends of the steel bars are inserted into the holes, a rebar planting adhesive is used for strengthening and stabilizing. The upper ends of the steel bars are bent towards the side of the vertical steel pipe to form an L shape;

[0009] S4. Bind the circumferential bars around the four steel bars for reinforcement;

[0010] S5. Advance a horizontal platform is reserved in the center of the pier as the base surface for the vertical steel pipe. Place the vertical steel pipe vertically on the horizontal platform and fixedly connect it to the four steel bars respectively through four positioning steel bars;

[0011] S6. Set up formwork;

[0012] S7. Pour concrete piers and cure them.

[0013] S8. After the concrete has completely solidified, remove the formwork and erect a scaffolding on the vertical steel pipes to complete the construction.

[0014] Preferably, in step S2, each pier has a rectangular size of 220*240.

[0015] Preferably, in step S3, the hole size of the drill hole is 26 mm and the embedding depth is 20d.

[0016] Preferably, in step S4, the upper part of the four steel bars is reinforced with a circular bar, and the two steel bars are reinforced with a tie bar.

[0017] Preferably, in step S5, four short steel bars with a length of 15 mm and a diameter of 10 mm are used as positioning steel bars.

[0018] Preferably, in step S6, formwork with a thickness of 14 mm is used to support the piers.

[0019] Preferably, in step S7, C30 concrete is used for pouring.

[0020] Compared with the prior art, the advantages of the present invention are as follows:

[0021] (1) Wide application range of the site: By using the present invention, a scaffolding can be erected on a concrete surface with an inclination angle of 30°-70°, which can solve the adverse factors brought by such slopes.

[0022] (2) High safety: The present invention adopts a reinforced concrete structure of C30 concrete and steel bars with a diameter of 22, and the poured piers have high compressive performance.

[0023] (3) High verticality: The present invention adopts the process of pre-reserving vertical steel pipes and the four-way steel bar positioning technology, which can ensure that the verticality of the vertical steel pipes meets the requirements and is conducive to the vertical erection of the vertical steel pipes of the scaffolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the construction process flow chart of the present invention;

[0025] Figure 2 is the connection structure schematic diagram of the pier and the vertical steel pipe of the scaffolding of the present invention;

[0026] Figure 3 is the internal structure schematic diagram of the pier of the present invention;

[0027] Figure 4 is the external structure schematic diagram of the pier of the present invention;

[0028] Figure 5 This is the construction effect diagram of the abutment of the present invention on the slope.

[0029] In the figure: 1. Abutment; 11. Steel bars; 12. Ring-shaped steel bars; 13. Tie bars; 2. Vertical steel pipes; 3. Horizontal platform; 4. Slope; 5. Positioning steel bars. Specific implementation manners

[0030] The present invention will be further described below.

[0031] Embodiment: A construction method for a scaffolding abutment on a slope. Refer to Figures 1 to 5 , and the construction method is as follows:

[0032] S1. Clean the concrete surface; use a broom to groove the concrete surface to remove soft stones and mud lumps to avoid affecting the construction of the abutment 1.

[0033] S2. Perform line laying operations to determine the position and size of each abutment 1; through strength testing of the test blocks of the abutment 1, the size of each abutment 1 is a rectangle of 220*240, which can meet the construction requirements.

[0034] S3. Use a drill to drill holes at the hole positions on the concrete surface and perform steel bar planting. There are four steel bars 11 with a diameter of 22 mm in each abutment 1, and the four steel bars 11 are centrally symmetrically distributed with the vertical steel pipe 2 as the center. After the lower ends of the steel bars 11 are inserted into the holes, planting glue is used for strengthening and stabilizing. The hole size drilled by the drill is 26 mm, and the embedding depth is 20d; through testing, by using four steel bars 11 with a diameter of 22 mm, inserting them into the holes with an embedding depth of 20d, and fixing them with planting glue, the construction requirements of the abutment 1 can be met; the upper ends of the steel bars 11 are bent towards the side of the vertical steel pipe 2 to form an L shape. One is to prevent the poured concrete from collapsing, and the other is to serve as a connection and positioning component for the vertical steel pipe 2 of the scaffolding to improve the installation stability of the vertical steel pipe 2.

[0035] S4. Bind ring-shaped steel bars 12 around the four steel bars 11 for reinforcement. Through the binding of the ring-shaped steel bars 12, the structural strength between the four steel bars 11 is improved, making the structure of the abutment 1 more stable; since the installation heights of the steel bars 11 on the slope 4 are inconsistent, to improve the overall stability of the steel bar skeleton, multiple ring-shaped steel bars 12 can be used to reinforce the upper parts of the four steel bars 11 until the roots of the two steel bars 11 with higher horizontal positions. For the roots of the two steel bars 11 with lower horizontal positions, tie bars 13 can be used for mutual reinforcement.

[0036] S5. Advance and reserve a 10mm×10mm horizontal platform 3 at the center of the abutment 1 as the base surface for the vertical steel pipe 2. Place the vertical steel pipe 2 vertically on the horizontal platform 3 and fixedly connect it to the four steel bars 11 respectively through four positioning steel bars 5. Among them, to ensure the verticality of the vertical steel pipe 2 and the convenience of subsequent installation, the installation position of the vertical steel pipe 2 in the present invention is reserved in advance, which can greatly improve the safety of the scaffolding system. The horizontal platform 3 can also be opened later, but the levelness of the horizontal platform 3 needs to be ensured to ensure that the vertical steel pipe 2 is vertically installed. In addition, four short steel bars 11 with a length of 15mm and a diameter of 10mm are used as the positioning steel bars 5 to connect the horizontal parts of the vertical steel pipe 2 and the four steel bars 11, aiming to ensure the verticality of the vertical steel pipe 2.

[0037] S6. Support the formwork; use a 14mm-thick formwork to support the abutment 1.

[0038] S7. Pour the concrete abutment 1 and carry out maintenance. To meet the design strength, C30 concrete can be used for pouring.

[0039] S8. After the concrete is completely solidified, remove the formwork, that is, complete the construction of the abutment 1. Finally, build a scaffolding on the vertical steel pipe 2 to complete the construction of the scaffolding platform.

[0040] A scaffolding installation structure on a slope includes a slope 4 and a scaffolding. The scaffolding is composed of vertical steel pipes 2 and horizontal steel pipes. Multiple abutments 1 for installing vertical steel pipes 2 are poured on the slope 4. There are four steel bars 11 in each abutment 1, and the four steel bars 11 are centrosymmetrically distributed with the vertical steel pipe 2 as the center. The lower ends of the steel bars 11 are inserted into the slope 4. The vertical steel pipe 2 is inserted into the abutment 1 and fixedly connected to the upper ends of the four steel bars 11 respectively through positioning steel bars 5, and is poured and fixed on the slope 4 together with the abutment 1. The present invention uses the abutment 1 with relatively high structural strength as the installation structure of the scaffolding, greatly improving the safety and stability of the scaffolding installation and construction on the large-angle slope 4. Each abutment 1 uses four steel bars 11 inserted into the slope 4 as the connection framework, greatly improving the structural stability of the abutment 1 after pouring, and realizing the connection and fixation with the vertical steel pipe 2 through the four steel bars 11 and the positioning steel bars 5, making the connection between the vertical steel pipe 2 of the scaffolding and the slope 4 more stable. Finally, the slope 4, the steel bars 11 and the vertical steel pipe 2 are integrally poured and formed with concrete, further improving the installation stability of the vertical steel pipe 2 on the large-angle slope 4.

[0041] To facilitate the connection between the steel bar 11 and the slope 4, holes for inserting the steel bar 11 are opened on the slope 4. The lower end of the steel bar 11 is inserted into the hole and fixed with planting glue, so that the steel bar 11 is firmly fixed on the slope 4.

[0042] The upper ends of the steel bars 11 are all bent towards the side of the vertical steel pipe 2 and are in an L shape, which is convenient for tying with the positioning steel bars 5, so that the vertical steel pipe 2 is vertically arranged between the steel bars 11.

[0043] The four steel bars 11 are tied with a circular steel bar 12 around them. Inside the pier 1, between the two steel bars 11 at a lower horizontal position, its root is reinforced and connected by a tie bar 13. The structural stability of the internal steel structure of the pier 1 can be further increased through the circular steel bar 12 and the tie bar 13.

[0044] A horizontal platform 3 for placing the vertical steel pipe is provided on the slope 4, and the vertical steel pipe 2 is vertically placed on the horizontal platform 3, which is convenient for keeping the vertical steel pipe 2 in a vertical state when installing it.

[0045] The above has introduced in detail a construction method of the scaffolding pier 1 on the slope 4 provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. It is possible to make changes and improvements to the present invention without exceeding the concept and scope defined by the appended claims. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A construction method for scaffolding piers on slopes, characterized in that, The construction method is as follows: S1. Clean the concrete surface; S2. Conduct layout operations to determine the positions and sizes of each pier; S3. Use a drill to drill holes at the hole positions on the concrete surface and implant steel bars. There are four steel bars in each pier, and the four steel bars are symmetrically distributed around the vertical steel pipe as the center. After the lower ends of the steel bars are inserted into the holes, anchor glue is used for strengthening and stabilizing. The upper ends of the steel bars are bent towards the vertical steel pipe side to form an L shape; S4. Bind a circular steel bar around the four steel bars for reinforcement; S5. Advance a horizontal platform is reserved in the center of the pier as the base surface of the vertical steel pipe. The vertical steel pipe is vertically placed on the horizontal platform and fixedly connected to the four steel bars through four positioning steel bars respectively; S6. Set up formwork; S7. Pour the concrete pier and carry out maintenance; S8. After the concrete is completely solidified, remove the formwork and build a scaffold on the vertical steel pipe to complete the construction.

2. The construction method of the scaffolding pier on the slope according to claim 1, characterized in that: In step S2, the size of each pier is a rectangle of 220*240.

3. A construction method for scaffolding piers on a slope according to claim 1, characterized in that: In step S3, the hole size of the drill hole is 26mm, and the embedding depth is 20d.

4. A construction method of a scaffolding pier on a slope according to claim 1, characterized in that: In step S4, the upper parts of the four steel bars are reinforced with circular steel bars, and the two steel bars are reinforced with tie bars.

5. A construction method of scaffolding piers on a slope according to claim 1, characterized in that: In step S5, four short steel bars with a length of 15mm and a diameter of 10mm are used as positioning steel bars.

6. A construction method for scaffolding piers on a slope according to claim 1, characterized in that: In step S6, formwork with a thickness of 14mm is used to set up the pier.

7. A construction method for scaffolding piers on a slope according to claim 1, characterized in that: In step S7, C30 concrete is used for pouring.

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