Detachable split pre-embedded safety belt tying and hanging point process

Abstract

The invention relates to the technical field of safety belt tying and hanging point construction, in particular to a detachable split pre-embedded safety belt tying and hanging point process. Comprising the following steps of formulating operation procedures through a construction drawing; confirming the position of a safety belt hanging point; positioning and trepanning the hanging point template; the formwork is installed; a split type embedded part is installed; concrete pouring operation is conducted; removing the template after the strength of the coagulation map reaches the standard; and eyebolts are installed. According to the detachable split pre-embedded technology, through modular design, high-precision positioning and rust-proof optimization, the problems that a traditional technology is not detachable, difficult to maintain and low in precision are solved, the construction efficiency and safety are remarkably improved, and the detachable split pre-embedded technology is suitable for complex and changeable high-place operation scenes and is superior to a traditional building construction scheme.

Description

Technical Field

[0001] The present invention relates to the technical field of construction technology for safety belt hanging points, and specifically to a detachable split embedded safety belt hanging point process. Background Art

[0002] The construction of safety belt hanging points is a key measure set in building construction to ensure the safety of high-altitude workers. The core is to pre-set fixed points in dangerous areas such as edges, openings, and exterior walls for workers to hang their safety belts to prevent falling accidents. The construction requires precise positioning of embedded parts, concrete pouring and fixing, and installation of detachable eyebolt bolts, etc., to ensure that the hanging points have sufficient load-bearing capacity and durability.

[0003] However, generally, the traditional process uses integral embedded parts, which are integrated with the concrete structure after pouring and cannot be adjusted or replaced. If the embedded parts are damaged or the position needs to be adjusted, the concrete needs to be damaged, resulting in high repair costs and affecting the structural integrity. The position of the embedded parts needs to be determined during the formwork installation stage, making it difficult to adapt to the requirements of multiple processes. It often requires repeated setting of hanging points, increasing the construction cost. Long-term exposure leads to corrosion of the embedded parts, and local chiseling of concrete is required during maintenance, making the construction complex and affecting the progress. At the same time, it relies on manual positioning, which is prone to deviation and affects the safety performance.

[0004] Based on this, the present invention provides a detachable split embedded safety belt hanging point process to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a detachable split embedded safety belt hanging point process to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions: A detachable split embedded safety belt hanging point process is provided, including the following steps: S1. Formulate operation procedures through construction drawings; S2. Confirm the position of the safety belt hanging point; S3. Position and drill holes in the hanging point formwork; S4. Install the formwork; S5. Implement the installation of split embedded parts; S6. Carry out concrete pouring operations; S7. Remove the formwork after the concrete strength reaches the standard; S8. Install the eyebolt bolts.

[0007] Preferably, the implementation of step S1 is as follows: Before construction, comprehensively analyze the construction drawings through building BIM software and laser rangefinders, clarify the masonry operation process of shear wall walls and the installation operation of exterior windows, and mark the hanging point positions on the drawings, ensuring that the marking accuracy error ≤ 50 mm. After the drawings are printed, review the relevance of the operation process in combination with the actual situation on site to ensure that at least 5 types of operation areas are covered, providing accurate basis for subsequent construction.

[0008] Preferably, the implementation of step S2 is as follows: Based on the drawing markings, use a total station with a positioning error ≤ 3 mm and a steel tape to conduct on-site lofting. Prioritize the selection of common hanging point positions that can cover ≥ 80% of the operation processes. Set 1 hanging point at every 3 m interval in the edge area, and encrypt it to 1.5 m at the corners, and clearly mark it on the surface of the formwork with a marker pen to ensure that the point distribution is reasonable and meets the requirements of safe operation.

[0009] Preferably, the implementation of step S3 is as follows: Use a laser locator in cooperation with an electric drill with a Φ32 mm drill bit for precise hole opening. The center deviation of the hole position ≤ 2 mm, and the perpendicularity ≤ 1 mm / m. Before hole opening, calibrate the flatness of the formwork with a spirit level to ensure that the hole diameter strictly matches the outer diameter of the embedded part Φ32 mm ± 0.5 mm to avoid subsequent installation deviation.

[0010] Preferably, the implementation of step S4 is as follows: Use an aluminum alloy formwork system and a hydraulic support frame for formwork installation. The formwork joint offset ≤ 1 mm, and the flatness ≤ 2 mm / m. After installation, review the hole positions through Φ30 mm positioning pins, with a deviation ≤ 3 mm, to ensure the accurate installation position of the embedded part.

[0011] Preferably, the implementation of step S5 is as follows: Select a split-type embedded part made of Q235B steel with a yield strength ≥ 235 MPa, with a surface galvanized treatment. After one-sided formwork is fixed, embed the embedded part into the hole opening, and use an M12 bolt with a pre-tightening force of 20 - 30 N·m in cooperation with a positioning fixture for temporary fixation to prevent displacement during concrete pouring, and spray anti-rust lubricant to protect the threads.

[0012] Preferably, the implementation of step S6 is as follows: Detect the slump before pouring, use a pump truck to transport the concrete, and when using an inserted vibrator for vibration, keep a distance of ≥ 200 mm from the embedded part, vibrate each point for 20 - 30 seconds, avoid direct impact, and smooth it in time after pouring to ensure that the area around the embedded part is dense and free of voids.

[0013] Preferably, the implementation of step S7 is as follows: When the concrete strength ≥ 15 MPa, after using a rebound hammer to detect that the strength meets the standard, remove the formwork in the order of non-load-bearing first and then load-bearing. For large formworks, use a tower crane for hoisting, and add an anti-vibration rubber head to the crowbar operation to avoid loosening of the embedded part caused by violent formwork removal.

[0014] Preferably, the implementation of step S8 is as follows: after the formwork is removed, clean the cement residue in the internal thread of the embedded part. Use a torque controller to set a pneumatic wrench with a torque of 100 - 150 N·m to screw the M16 - M20 high-strength hanging ring bolts into the embedded part, with an exposed length ≥ 50 mm. Apply thread anti-seize compound before installation, and randomly check 10% of the torque values at the points after installation, with the deviation ≤ ±5%, to ensure that the safety belt hanging points are firm and reliable.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The detachable split embedded part of the present invention consists of an embedded base and a detachable hanging ring bolt, which can be disassembled and replaced at any time, avoiding structural damage and supporting repeated use. The hanging ring bolt is connected by threads, with an exposed length ≥ 50 mm, facilitating installation and later maintenance. The total station, laser locator and BIM technology are used in coordination for positioning, with the deviation of the hole center ≤ 2 mm and the verticality ≤ 1 mm / m, ensuring the accuracy of the hanging point position. The formwork opening diameter and the embedded part are strictly matched, reducing installation errors. Through the design of shared hanging points, repeated settings are reduced. One point is set every 3 m in the edge area, and the corners are encrypted to 1.5 m, improving the resource utilization rate. The embedded part is made of Q235B steel, galvanized on the surface, and combined with an anti-rust lubricant, significantly extending the service life. The thread anti-seize compound is applied before installing the hanging ring bolt to avoid thread corrosion and ensure convenient disassembly. At the same time, the formwork opening, embedded part installation and concrete pouring are carried out step by step, allowing dynamic adjustment. The formwork is removed after the concrete strength ≥ 15 MPa, and the hanging ring bolt is quickly installed using a pneumatic wrench, with the randomly checked torque deviation ≤ ±5%, ensuring the construction quality. In summary, the detachable split embedded process of the present invention solves the pain points of the traditional process such as non-detachability, difficult maintenance and low precision through modular design, high-precision positioning and anti-rust optimization, significantly improving the construction efficiency and safety, and is applicable to complex and changeable high-altitude operation scenarios, being superior to the traditional building construction scheme. Description of the Drawings

[0016] Figure 1 It is a construction structure schematic diagram of the detachable split embedded safety belt hanging point process of the present invention; Figure 2 It is a process flow chart of the detachable split embedded safety belt hanging point process of the present invention.

[0017] Legend Explanation: 1. Shear wall; 2. Detachable split embedded part; 3. Hanging ring bolt. Specific Embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] For the embodiments, please refer to Figure 1 , the split embedded part 2 is composed of an embedded base and a detachable eyebolt 3, which can be disassembled and replaced at any time, avoiding structural damage and supporting reuse. The present invention proposes a detachable split embedded seat belt hanging point process. Specifically, it includes the following steps: S1. Formulate the operation procedures through construction drawings; In this embodiment, it should also be noted that the implementation method of step S1 is: before construction, comprehensively analyze the construction drawings through building BIM software and a laser rangefinder, clarify the wall masonry and exterior window installation operation procedures of the shear wall 1, and mark the hanging point positions on the drawings to ensure that the marking accuracy error ≤ 50 mm. After the drawings are printed, combine with the actual situation on site to review the relevance of the procedures to ensure that at least 5 types of operation areas are covered, providing accurate basis for subsequent construction; S2. Confirm the positions of the seat belt hanging points; In this embodiment, it should also be noted that the implementation method of step S2 is: based on the drawing markings, use a total station with a positioning error ≤ 3 mm and a steel tape for on-site lofting. Prioritize the selection of common hanging point positions that can cover ≥ 80% of the procedures. Set 1 hanging point at every 3 m interval in the edge area, and encrypt it to 1.5 m at the corners, and clearly mark it on the surface of the formwork with a marker pen to ensure reasonable point distribution and meet the safety operation requirements; S3. Position and drill holes in the formwork for the hanging points; In this embodiment, it should also be noted that the implementation method of step S3 is: use a laser locator in cooperation with an electric drill with a Φ32 mm drill bit for precise drilling. The deviation of the hole center is ≤ 2 mm, and the perpendicularity is ≤ 1 mm / m. Before drilling, calibrate the flatness of the formwork with a spirit level to ensure that the hole diameter strictly matches the outer diameter of the embedded part Φ32 mm ± 0.5 mm, avoiding subsequent installation deviations; S4. Install the formwork; In this embodiment, it should also be noted that the implementation method of step S4 is: use an aluminum alloy formwork system and a hydraulic support frame for formwork installation. The formwork joint offset is ≤ 1 mm, and the flatness is ≤ 2 mm / m. After installation, review the hole positions through Φ30 mm positioning pins, with a deviation ≤ 3 mm, to ensure accurate installation positions of the embedded parts; S5. Install the split embedded part 2; In this embodiment, it should also be noted that the implementation method of step S5 is: select a split embedded part 2 made of Q235B steel with a yield strength ≥ 235 MPa, with surface galvanized treatment. After one-sided formwork is fixed, embed the embedded part into the drilled hole, and use an M12 bolt with a pre-tightening force of 20 - 30 N·m in cooperation with a positioning fixture for temporary fixation to prevent displacement during concrete pouring, and spray anti-rust lubricant to protect the threads; S6. Perform concrete pouring operation; In this embodiment, it should also be noted that the implementation method of step S6 is as follows: Before pouring, detect the slump. Use a pump truck to transport the concrete. When vibrating with an inserted vibrator, the distance from the embedded part should be ≥200 mm. Vibrate each point for 20 - 30 seconds to avoid direct impact. After pouring, smooth it in time to ensure that the periphery of the embedded part is dense and there are no cavities; S7. Remove the formwork after the concrete strength reaches the standard; In this embodiment, it should also be noted that the implementation method of step S7 is as follows: When the concrete strength ≥15 MPa, after using a rebound hammer to detect that the strength reaches the standard, remove the formwork in the order of non - load - bearing first and then load - bearing. For large formworks, use a tower crane for hoisting. When operating with a crowbar, install an anti - shock rubber head to avoid loosening of the embedded parts caused by violent formwork removal; S8. Install the lifting ring bolt 3; In this embodiment, it should also be noted that the implementation method of step S8 is as follows: After the formwork is removed, clean the cement residue in the internal thread of the embedded part. Use a torque controller to set a pneumatic wrench with a torque of 100 - 150 N·m to screw the M16 - M20 high - strength lifting ring bolt 3 into the embedded part, with an exposed length ≥50 mm. Apply thread anti - seizure compound before installation. After installation, randomly check 10% of the torque values of the points, and the deviation ≤±5%, to ensure that the safety belt hanging point is firm and reliable.

[0020] During the construction process of the present invention, adjust in combination with the design load GB 50497 - 2019 "Safety Technical Code for High - Altitude Work in Building Construction" to ensure that the process flow is standardized.

[0021] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0022] The above - disclosed preferred embodiments of the present invention are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation manners described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. The process of detachable split embedded safety belt hanging point is characterized by: The following steps are involved: S1. Formulate the operation procedures through construction drawings; S2. Confirm the location of the seat belt fastening point; S3. Positioning and opening of the template for the hanging point; S4. Install the template; S5. Implement the installation of split embedded parts; S6. Carry out concrete pouring operation; S7. Remove the formwork after the concrete strength reaches the standard; S8. Install the eyebolts.

2. The detachable split pre-buried safety belt hanging point process according to claim 1 is characterized in that: The implementation method of step S1 is as follows: before construction, the construction drawings are comprehensively analyzed through the building BIM software and the laser rangefinder to clarify the shear wall masonry and external window installation work procedures, and the hanging point positions are marked on the drawings to ensure that the marking accuracy error is ≤50mm. After the drawings are printed, the correlation of the work procedures is reviewed in combination with the actual site to ensure that at least 5 types of work areas are covered, providing an accurate basis for subsequent construction.

3. The detachable split pre-buried safety belt hanging point process according to claim 2 is characterized in that: The implementation method of step S2 is: based on the drawing marking, use a total station with a positioning error of ≤3mm and a steel tape measure to carry out on-site layout, give priority to the common hanging point positions that can cover ≥80% of the processes, set one hanging point at a spacing of every 3m in the edge area, and increase the spacing to 1.5m at the corners, and clearly mark the template surface with a marker to ensure that the point distribution is reasonable and meets the safety operation requirements.

4. The detachable split pre-buried safety belt hanging point process according to claim 3 is characterized in that: The implementation method of step S3 is: use a laser locator and an electric drill with a Φ32mm drill bit to accurately drill holes, with the hole center deviation ≤2mm and the verticality ≤1mm / m. Use a spirit level to calibrate the flatness of the template before drilling the hole to ensure that the hole diameter and the outer diameter of the embedded part strictly match Φ32mm±0.5mm to avoid subsequent installation deviations.

5. The detachable split pre-buried safety belt hanging point process according to claim 4 is characterized in that: The implementation method of step S4 is: use an aluminum alloy formwork system and a hydraulic support frame to install the formwork, the template joint misalignment is ≤1mm, and the flatness is ≤2mm / m. After the installation is completed, the hole position is checked by a Φ30mm positioning pin, and the deviation is ≤3mm to ensure the accurate installation position of the embedded parts.

6. The detachable split pre-buried safety belt hanging point process according to claim 5 is characterized in that: The implementation method of step S5 is as follows: a split embedded part made of Q235B steel with a yield strength of ≥235MPa is selected, the surface is galvanized, and after the single-side template is fixed, the embedded part is embedded in the opening, and an M12 bolt with a preload of 20-30N·m is used to temporarily fix it with a positioning fixture to prevent displacement during concrete pouring, and an anti-rust lubricant is sprayed to protect the thread.

7. The detachable split pre-buried safety belt hanging point process according to claim 6 is characterized in that: The implementation method of step S6 is as follows: the slump is tested before pouring, concrete is transported by a pump truck, the inserted vibrator is vibrated at a distance of ≥200mm from the embedded parts, each point is vibrated for 20-30 seconds to avoid direct impact, and smoothing is carried out in time after pouring to ensure that the surrounding area of ​​the embedded parts is dense and free of voids.

8. The detachable split pre-buried safety belt hanging point process according to claim 7 is characterized in that: The implementation method of step S7 is as follows: when the concrete strength is ≥15MPa, after the strength is tested by a rebound tester and meets the standard, the formwork is removed in the order of first non-load-bearing and then load-bearing. Large formwork is hoisted by a tower crane, and shock-proof rubber heads are installed when operating with a crowbar to avoid loosening of embedded parts due to violent formwork removal.

9. The detachable split pre-buried safety belt hanging point process according to claim 8 is characterized in that: The implementation method of step S8 is as follows: after the template is removed, the cement residue in the inner thread of the embedded part is cleaned, and the pneumatic wrench with a torque controller set to 100-150N·m is used to screw the M16-M20 high-strength eye bolt into the embedded part, with the exposed length ≥50mm, and the thread anti-bite agent is applied before installation. After installation, the torque value deviation of 10% of the points is randomly checked to be ≤±5%, so as to ensure that the safety belt hanging point is firm and reliable.

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