Annular wall embedded part mounting construction method

Abstract

The invention relates to the technical field of building engineering, and discloses an annular wall embedded part mounting construction method which comprises the following steps: S1, determining the plane position of the circle center point of an annular wall according to a building reference point and a design drawing; s2, a concrete foundation is dug out and used for installing a center stand column; s3, paying off of the annular wall body is conducted under the guidance of a protractor, and on-site splicing is conducted through narrow-strip-shaped formworks; s4, after construction of the reinforcing steel bars and the formwork is completed, embedded parts are installed; s5, a leveling instrument and a self-made adjustable positioning tool are used for conducting secondary checking on the center point position and the elevation of the embedded part; s6, after the positions and the elevations of the embedded parts are confirmed to be correct through secondary checking, welding construction is conducted; and S7, after welding is completed, annular wall body concrete pouring is conducted. The center point is used for erecting the graduator in the construction process, and the self-made adjustable positioning tool is combined for installation and checking, so that the installation precision of the embedded part can be effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to an installation construction method for an annular wall embedded part. Background Art

[0002] In construction projects, the installation of embedded wall parts is a key step to ensure the stability and functionality of the subsequent structure. Especially for annular walls, due to the uniqueness of their structure and geometric complexity, the installation accuracy requirements of embedded parts are more stringent. At present, the traditional method of installing embedded parts mainly relies on manual measurement and empirical judgment. It is easy to cause deviations due to human factors during the installation process, resulting in the angle and distance between embedded parts not meeting the requirements, which in turn affects the safety of the overall structure and the construction progress.

[0003] Traditional construction usually relies on manual measurement and marking. However, due to the curved characteristics of the annular wall structure, the accurate positioning of embedded parts becomes more difficult. Existing measurement tools and methods are insufficient in curved surface positioning, which can easily lead to errors in the angles and spacing between embedded parts and fail to meet the design accuracy requirements. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a method for installing and constructing annular wall embedded parts, which solves the problem that traditional construction usually relies on manual measurement and marking, while the accurate positioning of embedded parts becomes more difficult due to the curved characteristics of the annular wall structure.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A method for installing and constructing an annular wall embedded part, comprising the following steps: S1. Layout of the center point of the circular wall Determine the plane position of the center point of the circular wall according to the building reference point and the design drawing, and mark the plane position of the center point of the circular wall with a colored flag; S2. Install the center column and indexing instrument Dig out the concrete foundation to install the center column, and install the indexing instrument after the concrete reaches the design strength; S3. Annular wall construction Under the guidance of the protractor, the circular wall is laid out, and narrow strip templates are used for on-site assembly. The radius of the template is checked for accuracy using a protractor; S4. Embedded parts installation After completing the construction of the steel bars and formwork, install the embedded parts. First, install the embedded parts on the 0° line and arrange them along the outer diameter of the annular wall. The angle between the subsequent embedded parts is controlled by the pointer rotation angle of the indexer. S5. Secondary verification of embedded parts Use a level and a self-made adjustable positioning tool to perform a secondary check on the center point position and elevation of the embedded parts; S6. Embedded parts welding After the position and elevation of the embedded parts are confirmed to be correct after secondary verification, welding construction shall be carried out, and welding rods with less damage to the embedded parts and steel bars shall be selected; S7. Pouring of circular wall concrete After welding is completed, the annular wall concrete is poured.

[0006] Preferably, in the step S1, the outline of the column foundation is laid out by spreading white lime at the center point of the annular wall, so that the geometric symmetry of the annular wall and the correct matching of various components are achieved.

[0007] Preferably, in step S2, the installation of the dividing instrument needs to ensure that the 0° position completely coincides with the 0° line position marked in the drawing.

[0008] Preferably, in step S4, a level is used to measure the elevation when the embedded parts are installed to detect whether the height of the embedded parts meets the design requirements.

[0009] Preferably, in the step S5, the self-made adjustable positioning tool has an adjustable positioning pin and a clamp, and the spacing between the center points of the positioning pins is adjusted to meet the requirements by adjusting the adjustable nut.

[0010] Preferably, in the step S6, before welding the embedded parts, rust spots, oil stains and debris on the welding parts of the embedded parts and the steel bars need to be cleaned.

[0011] Preferably, in step S7, before pouring the concrete, a 50 mm thick cement mortar having the same mix ratio as the concrete is evenly poured on the bottom surface, and the mortar is poured into the mold with a shovel.

[0012] Preferably, in the step S7, the wall concrete pouring needs to be vibrated using a vibrating rod with a moving interval of less than 500 mm to prevent the vibrating rod from touching the steel bars and embedded parts to prevent position shift.

[0013] The present invention provides a method for installing and constructing an annular wall embedded part. It has the following beneficial effects: 1. The present invention can effectively ensure the accuracy of embedded parts during installation by using a center point to set up a protractor during the construction process, and combining it with a self-made adjustable positioning tool for installation and verification. The protractor provides precise angle control to ensure the consistency of the angle, distance and elevation between each embedded part. This method minimizes the installation deviation and ensures that the positions of all embedded parts can be accurately arranged according to the requirements of the design drawings, thereby significantly improving the accuracy of the installation.

[0014] 2. In the construction of the present invention, insufficient installation accuracy often leads to problems of rework and construction delay. Through the secondary verification step in the method, construction personnel can reconfirm whether the position and elevation of the embedded parts meet the requirements after installation. This double guarantee can greatly reduce the rework caused by initial installation errors, reduce unforeseen risks in the construction process, reduce waste of resources, and effectively ensure that the construction plan is completed on time.

[0015] 3. The present invention significantly improves construction efficiency through the use of optimized construction processes and self-made tools. The use of a protractor can quickly and accurately complete the laying out of the annular wall, and the self-made positioning tool can make the installation process of the embedded parts more efficient. At the same time, by reducing the rework caused by errors, the entire construction period is greatly shortened, which is particularly important for projects with tight construction schedules and helps to complete engineering tasks on time or even ahead of schedule. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A method flow chart of a method for installing and constructing a ring-shaped wall embedded part according to the present invention; Figure 2 It is a schematic diagram of the structure of the level ruler of the present invention; Figure 3 It is a schematic diagram of the structure of the self-made positionable and adjustable tool of the present invention; Figure 4 It is a schematic diagram of the local structure of the rotating pointer of the present invention; Figure 5 It is a schematic diagram of the local structure of the central column of the present invention.

[0017] Among them, 1. Self-made positioning adjustment tool; 101. Adjustable nut; 102. Clamp; 103. Positioning pin; 2. Level ruler; 3. Level bubble; 4. Rotating pointer; 5. Dial; 6. Cushion; 7. Column foundation; 8. Protractor; 9. Center column. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Please see attached Figure 1 -Attached Figure 5 The embodiment of the present invention provides a method for installing and constructing an annular wall embedded part, comprising the following steps: S1. Layout of the center point of the circular wall Determine the plane position of the center point of the circular wall according to the building reference point and the design drawing, and mark the plane position of the center point of the circular wall with a colored flag; S2. Install the center column 9 and the dividing instrument 8 Dig out the concrete foundation to install the center column 9, and install the indexing instrument 8 after the concrete reaches the designed strength; S3. Annular wall construction Under the guidance of the dividing instrument 8, the circular wall is laid out, a narrow strip template is used for on-site assembly, and the radius of the template is checked for accuracy using the dividing instrument 8; S4. Embedded parts installation After the construction of the steel bars and the formwork is completed, the embedded parts are installed. First, the embedded parts on the 0° line are installed and arranged along the outer diameter of the annular wall. The angle between the subsequent embedded parts is controlled by the pointer rotation angle of the indexer 8; S5. Secondary verification of embedded parts Use the level ruler 2 and the self-made adjustable positioning tool 1 to perform a secondary check on the center point position and elevation of the embedded part; S6. Embedded parts welding After the position and elevation of the embedded parts are confirmed to be correct after secondary verification, welding construction shall be carried out, and welding rods with less damage to the embedded parts and steel bars shall be selected; S7. Pouring of circular wall concrete After welding is completed, the annular wall concrete is poured.

[0020] Specifically, the present invention provides a method for installing and constructing annular wall embedded parts, which effectively solves the problem of inaccurate positioning of embedded parts in traditional construction by using an annular wall center point dividing instrument 8, a self-made adjustable positioning tool and a secondary calibration step during the construction process.

[0021] Improve installation accuracy: Use the indexer 8 and the adjustable positioning tool to ensure the accuracy of the angle, distance and elevation when installing the embedded parts, and effectively control the construction error.

[0022] Reduce rework and save construction time: Through the secondary verification method, the rework caused by errors is reduced and the overall construction efficiency is improved.

[0023] Reduce construction costs: The tools are easy to use and multifunctional and can be used in multiple construction processes, thus reducing construction costs.

[0024] Improve structural safety: During the construction process, the geometric symmetry of the annular wall and the correct matching of each component are strictly controlled to ensure the stability and safety of the wall structure.

[0025] In step S1, the outline of the column foundation 7 is laid out by spreading white lime at the center point of the annular wall, so that the geometric symmetry of the annular wall and the correct matching of the components are achieved.

[0026] Specifically, the plane position of the center point of the circular wall is determined according to the building benchmark and design drawings, and it is marked with colored flags. The center point is used as the benchmark for the subsequent construction of the circular wall, foundation and embedded parts. The accuracy of its plane position must be ensured, and then it is compounded according to the single plane and elevation control network, and the outline of the column foundation 7 is sprinkled with white lime.

[0027] In step S2, the installation of the indexing instrument 8 must ensure that the 0° position completely coincides with the 0° line position marked in the drawing.

[0028] Specifically, after the center position is determined, the earth and stone of the center column foundation 7 is excavated, and the foundation size is 400×400×600C30 reinforced concrete foundation, and the center column 9 is installed in its center. In order to prevent the verticality and center position of the column from being disturbed during the concrete pouring process, resulting in a large error, the center column 9 needs to be calibrated again after the concrete pouring is completed, and fixed with a bracket. The cushion layer 6 serves as a support for the center column foundation 7.

[0029] After the concrete strength reaches the design requirements, the protractor 8 can be installed. The 80° position of the protractor must coincide with the 0° line position in the drawing.

[0030] In step S3, a steel tape measure can be installed on the rotating pointer 4 of the dividing instrument 8 to lay out the annular wall and its foundation. In order to ensure the curvature of the wall and facilitate adjustment and reinforcement of the wall template, a narrow strip template is used for on-site assembly. After the template construction is completed, the dividing instrument 8 can be used to check the quality of the annular wall radius of the installed template. The dial 5 is used to observe the scale.

[0031] In step S4, a level is used to measure the elevation when the embedded parts are installed to check whether the height of the embedded parts meets the design requirements.

[0032] Specifically, the construction of the ring wall reinforcement and formwork is completed and accepted before the embedded parts can be installed. During installation, the first piece on the 0° line is installed first, the center line of the embedded part coincides with the 0° line, and it is installed against the outer diameter of the wall. The level is used to measure the elevation. After checking that it is correct, the subsequent installation work can be carried out. The angle of the center line of each embedded part can be controlled by the rotation angle of the 8 pointer of the dividing instrument.

[0033] In step S5, the self-made adjustable positioning tool 1 has an adjustable positioning pin 103 and a clamp 102. By adjusting the adjustable nut 101, the center point spacing of the positioning pin 103 meets the requirements.

[0034] Specifically, use a spirit level 2 + a self-made positioning card to make an adjustable positioning tool, and perform a secondary check of the position and elevation through the straight-line distance between the center points of the embedded parts.

[0035] When in use, adjust the positioning card to make the center point spacing of the positioning pin 103, tighten the adjustable nut 101, and the positioning pin 103 passes through the central exhaust hole of the embedded part for verification; by observing the horizontal bubble 3 of the level ruler 2, it is possible to measure whether the elevation error between the two embedded parts meets the requirements.

[0036] In step S6, before welding the embedded parts, rust, oil stains and debris on the embedded parts and the steel bar welding positions need to be cleaned.

[0037] Specifically, after the position and elevation of the embedded parts are verified twice, welding construction can be carried out. Before formal welding, the welders involved in the welding should conduct welding process tests under on-site conditions, and only after passing the tests can they officially carry out welding operations; before welding construction, rust, oil stains, and debris on the surface of the wall reinforcement and embedded parts welding parts should be removed, and the ends of the reinforcement should be straightened if they are bent or twisted.

[0038] Select welding rods that cause less damage to embedded parts and steel bars, which will cause less damage to embedded parts and increase welding quality.

[0039] The weld should be cleaned after welding, the surface should be smooth, the weld should be beautiful, and there should be no excessive defects. If any appearance defects such as undercut and incomplete filling are found, they should be repaired in time.

[0040] In step S7, before pouring the concrete, a 50 mm thick cement mortar having the same mix ratio as the concrete is evenly poured on the bottom surface, and the mortar is poured into the mold with a shovel.

[0041] In step S7, the wall concrete pouring needs to be vibrated with a vibrating rod, and the moving interval is less than 500mm to prevent the vibrating rod from touching the steel bars and embedded parts to prevent position deviation.

[0042] Specifically, before pouring concrete, a 50mm thick cement mortar with the same concrete mix ratio should be evenly poured on the bottom surface, and the mortar should be poured into the mold with a shovel. The wall concrete should be poured continuously, with an interval of no more than 2 hours, and the pouring thickness of each layer should be controlled at about 500mm, so the concrete unloading position and the number of vibrator operators must be arranged in advance.

[0043] The moving distance of the vibrating rod should be less than 500mm, and the duration of each vibration point should be until the surface shows floating slurry. In order to combine the upper and lower layers of concrete into a whole, the vibrator should be inserted into the lower layer of concrete by 50mm. When vibrating, be careful to avoid touching the steel bars to prevent excessive deviation in the position of the embedded parts.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for installing and constructing an annular wall embedded part, characterized in that: The following steps are involved: S1. Layout of the center point of the circular wall Determine the plane position of the center point of the circular wall according to the building reference point and the design drawing, and mark the plane position of the center point of the circular wall with a colored flag; S2. Install the center column and indexing instrument Dig out the concrete foundation to install the center column, and install the indexing instrument after the concrete reaches the design strength; S3. Annular wall construction Under the guidance of the protractor, the circular wall is laid out, and narrow strip templates are used for on-site assembly. The radius of the template is checked for accuracy using a protractor; S4. Embedded parts installation After completing the construction of the steel bars and formwork, install the embedded parts. First, install the embedded parts on the 0° line and arrange them along the outer diameter of the annular wall. The angle between the subsequent embedded parts is controlled by the pointer rotation angle of the indexer. S5. Secondary verification of embedded parts Use a level and a self-made adjustable positioning tool to perform a secondary check on the center point position and elevation of the embedded parts; S6. Embedded parts welding After the position and elevation of the embedded parts are confirmed to be correct after secondary verification, welding construction shall be carried out, and welding rods with less damage to the embedded parts and steel bars shall be selected; S7. Pouring of circular wall concrete After welding is completed, the annular wall concrete is poured.

2. A method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S1, the outline of the column foundation is laid out by spreading white lime at the center point of the annular wall, so that the geometric symmetry of the annular wall and the correct matching of the components are achieved.

3. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In step S2, the installation of the dividing instrument must ensure that the 0° position completely coincides with the 0° line position marked in the drawing.

4. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S4, a level is used to measure the elevation when the embedded parts are installed to detect whether the height of the embedded parts meets the design requirements.

5. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S5, the self-made adjustable positioning tool has an adjustable positioning pin and a clamp, and the center point spacing of the positioning pins is adjusted to meet the requirements by adjusting the adjustable nut.

6. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S6, before welding the embedded parts, rust, oil stains and debris on the embedded parts and the welding parts of the steel bars need to be cleaned.

7. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S7, before pouring the concrete, a 50 mm thick cement mortar having the same mix ratio as the concrete is evenly poured on the bottom surface, and the mortar is poured into the mold with a shovel.

8. The method for installing and constructing an annular wall embedded part according to claim 1, characterized in that: In the step S7, the wall concrete pouring needs to be vibrated using a vibrating rod, and the moving interval is less than 500 mm to prevent the vibrating rod from touching the steel bars and embedded parts to prevent position deviation.

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