Construction method for inserting light steel keel partition wall in advance

Abstract

The invention relates to the technical field of decoration engineering, and discloses a light steel joist partition wall advanced interpenetration construction method which comprises the following steps: early-stage preparation and foundation treatment: firstly, performing three-dimensional modeling by utilizing a BIM technology according to a design drawing and an on-site actual condition, and constructing a light steel joist partition wall; the position and size of a light steel keel wall and the position and size of a pipeline reserved hole are accurately simulated, meanwhile, foundation treatment is conducted on the bottom of the wall, and it is ensured that the ground flatness and strength meet the construction requirements; line snapping and grading are carried out at the joints of the partition wall and the upper, lower and two base bodies. According to the advanced insertion construction method for the light steel joist partition wall, after construction of a main body structure is completed, a concrete reverse ridge with the same height as a decorative terrace is poured at the bottom of the light steel joist wall in a line snapping mode, holes are reserved in combination with BIM deepening pipelines, light steel joist process construction is conducted before terrace pouring, the construction period can be well shortened, and the construction efficiency is improved. And pollution and damage to materials in the construction process can be reduced, and the green building effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of decoration and renovation engineering, and in particular to a method for pre-insertion construction of a light steel keel partition wall. Background Art

[0002] Lightweight steel keel is a new type of building material. In recent years, it has been widely used in hotels, terminal buildings, passenger stations, railway stations, theaters, shopping malls, factories, office buildings, old building renovation, interior decoration, ceilings and other places.

[0003] Usually, there are two construction sequences for decorating light steel frame partition walls: before the floor and after the floor. The construction of light steel frame partition walls before the floor can shorten the construction period, but the subsequent floor concrete and mortar construction often easily cause pollution, mold, or even damage to the keel and wall panels at the root of the light steel frame partition wall, causing quality and safety hazards and increasing subsequent maintenance costs. The construction of light steel frame partition walls after the floor is usually larger in area, the construction period is longer, and the subsequent construction period progress often does not meet the requirements.

[0004] Therefore, there is an urgent need for a method of pre-installation construction of light steel frame partition walls, which can complete the main installation work of the light steel frame wall before the floor is poured, and combine BIM technology for precise planning and reserved openings to achieve comprehensive optimization of construction efficiency, quality and cost. Summary of the invention

[0005] The purpose of the present invention is to provide a method for pre-insertion construction of light steel frame partition walls, by completing the main installation work of the light steel frame wall before floor pouring, and combining BIM technology for precise planning and reserved openings, so as to achieve comprehensive optimization of construction efficiency, quality and cost.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for pre-insertion construction of light steel keel partition walls, comprising the following steps: Preliminary preparation and foundation treatment: First, according to the design drawings and actual site conditions, 3D modeling was performed using BIM technology to accurately simulate the position and size of the light steel keel wall and the position and size of the reserved openings for pipelines. At the same time, the bottom of the wall was treated with foundation treatment to ensure that the flatness and strength of the ground met the construction requirements; Marking and dividing: At the junction of the partition wall and the upper, lower and two side bases, the line should be marked according to the width of the keel. According to the design requirements and the size of the fiber cement board, the position of the vertical keel, cross brace and additional keel should be determined; Make concrete counter-bump: According to the positioning of the layout, pour the concrete counter-bump at the bottom of the light steel keel wall with the same height as the decorative floor. At the same time, use BIM technology to deepen the design and accurately reserve the pipeline opening; Installation of keels: Fix the top and ground keels on the ceiling and the countersill respectively along the elastic line, and fix the frame keels along the elastic line. The edge line of the keel should coincide with the elastic line. Electrical pipeline laying and wall-mounted equipment installation: Electrical pipeline laying and wall-mounted equipment installation are carried out simultaneously, using the precise data provided by the BIM model to ensure reasonable pipeline laying and accurate equipment installation; Keel inspection: Before installing the cement board, check the firmness of the partition frame and the installation of wall-mounted equipment and pipelines, and make necessary reinforcements to ensure that the vertical deviation and surface flatness of the keel meet the design requirements; Installation of fiber cement board: The fiber cement board is installed by vertical laying. The joints are treated by beveling and embedding putty and pasting fiberglass tape to ensure that the board surface is flat and the joints are beautiful and firm. Post-processing and acceptance: After completing all construction steps, carry out post-cleaning and sorting work, and conduct acceptance.

[0007] Preferably, in the preliminary preparation and basic processing steps, the collision detection function of the BIM model can be used to discover and solve possible problems in the design in advance, and based on the data provided by the BIM model, precise layout can be carried out on site to determine the position of the light steel keel wall.

[0008] Preferably, the lines drawn in the marking and grading steps should be clear and accurately positioned, and the vertical main purlins and secondary purlins should be set according to the requirements of the design drawings when dividing the gradations.

[0009] Preferably, in the step of making the concrete counter-ridge, the position is determined according to the positioning according to the laying out, and the line is drawn at the bottom of the light steel keel wall to determine the position of the concrete counter-ridge. The template is built along the drawn line to ensure that the template is stable and the position is accurate. The height of the template should be consistent with the height of the decorative floor. The position of the pipeline opening is pre-marked on the template, and holes are opened on the template to ensure that the position of the opening is accurate before pouring.

[0010] Preferably, during the keel installation step, nails or expansion bolts are used to fix the keel. The spacing between the fixing points of the top and ground keels should be no more than 600 mm to ensure that the keels are butted straight. The ends of the frame keels should be fixed, and the spacing between the fixing points should be no more than 1 meter to ensure that they are firmly fixed.

[0011] Preferably, during the electrical pipe laying and wall-mounted equipment installation, pre-buried pipes and wall-mounted equipment are required to be installed simultaneously with the installation of the keel, or before the other side of the fiber cement board is sealed, and local reinforcement measures are taken to ensure that it is firmly fixed.

[0012] Preferably, the keel inspection step should check whether the firmness of the partition frame, the installation and fixation of door and window frames, various wall-mounted equipment, and pipelines meet the design requirements, and whether the vertical deviation and surface flatness of the keel meet the design requirements, among which the vertical deviation of the keel should be ≤3mm, and the surface unevenness should be ≤2mm.

[0013] Preferably, in the fiber cement board installation step, the fiber cement board is fixed with self-tapping screws, the screw spacing along the periphery of the fiber cement board should not be greater than 200 mm, the screw spacing in the middle part should not be greater than 300 mm, and the distance between the screws and the edge of the board should be 10 to 15 mm.

[0014] Preferably, in the post-processing and acceptance steps, the construction site is first cleaned up to ensure that all construction equipment and tools have been properly returned or evacuated from the site, and then the construction team is organized to conduct self-inspection, and finally subsequent acceptance work is carried out.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: First, the present invention, after the main structure is completed, a concrete counter-slope is cast at the same height as the decorative floor at the bottom of the light steel keel wall, and a hole is reserved for deepening the pipeline in combination with BIM, so that the light steel keel process is constructed before the floor is cast, which can not only save construction time, but also reduce pollution and damage to materials caused during the construction process, and achieve the effect of green construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall construction process structure of the present invention; Figure 2 This is a schematic diagram of the preparation and basic processing flow structure of the present invention; Figure 3 This is a schematic diagram of the structure of the line springing and grading process of the present invention; Figure 4 The present invention is a schematic diagram of the concrete back-up process structure; Figure 5 This is a structural schematic diagram of the keel installation process of the present invention; Figure 6 It is a structural schematic diagram of the process of laying pipes for electrical appliances, installing wall-mounted equipment, and installing fiber cement boards according to the present invention; Figure 7 It is a schematic diagram of the post-processing and acceptance structure of the present invention. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments 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.

[0018] The present invention provides the following technical solutions: See also Figure 1-Figure 7 A method for pre-insertion construction of a light steel keel partition wall comprises the following steps: 1. Preliminary preparation and foundation treatment: First, according to the design drawings and the actual situation on site, use BIM technology to carry out 3D modeling, accurately simulate the position and size of the light steel keel wall and the position and size of the reserved openings for pipelines, and at the same time carry out foundation treatment on the bottom of the wall to ensure that the flatness and strength of the ground meet the construction requirements; Before construction, carefully review the design drawings, clarify the position and size of the light steel keel wall and the position and size of the reserved openings for pipelines, conduct a detailed survey of the construction site, confirm the actual construction conditions and environment, confirm the spatial layout and structural characteristics of the site, record the actual size and ground conditions of the site, and use BIM technology for 3D modeling to accurately simulate the position and size of the light steel keel wall and the position and size of the reserved openings for pipelines. Make necessary adjustments to the 3D model based on the actual site conditions, confirm that the model is consistent with the actual site dimensions, and adjust the position and size of the reserved openings for pipelines to ensure that they match the actual site conditions; The foundation treatment includes treating the foundation at the bottom of the light steel keel wall to ensure that the flatness and strength of the ground meet the construction requirements, and ensure that the ground strength meets the construction requirements. For example, the uneven ground is polished or filled to ensure that the ground is flat. If the ground strength is insufficient, reinforcement treatment is carried out, such as applying epoxy resin or laying steel mesh, to ensure that the flatness and strength of the ground before construction meet the construction requirements, improve construction quality, reduce rework, and improve construction efficiency through detailed preliminary preparation work.

[0019] 2. Marking and dividing: At the junction of the partition wall and the upper, lower and two side bases, the line should be marked according to the width of the keel. According to the design requirements and the size of the fiber cement board, the position of the vertical keel, cross brace and additional keel should be determined; When marking the lines, use a laser rangefinder or a level ruler to determine the position of the keel from top to bottom at the junction of the partition wall and the upper, lower and two side substrates. Use a chalk line box or ink fountain to mark the lines along the junction of the substrates on both sides of the partition wall to ensure that the lines are clear and the position is accurate, which is convenient for subsequent construction personnel to identify. When dividing the walls into sections, use a tape measure to measure the actual length and height of the partition wall. According to the design drawings and the size of the fiber cement board, determine the position of the vertical keel. According to the position of the vertical keel, determine the position of the cross brace and additional keel. Mark the position of each keel on the marking line to ensure that the position is accurate. Through precise marking operations, ensure that the position of the keel is accurate, improve construction accuracy, reduce rework, and through reasonable grading operations, ensure that the positions of the vertical keel, cross brace and additional keel are reasonable, thereby improving construction quality and efficiency.

[0020] 3. Make concrete counter-slope: According to the positioning of the layout, pour the concrete counter-slope at the bottom of the light steel keel wall with the same height as the decorative floor. At the same time, use BIM technology to deepen the design and accurately reserve the pipeline opening; When making a concrete counter-bump, use a laser rangefinder or a level to accurately lay out and locate the bottom of the light steel keel wall. According to the position on the design drawing, use a chalk line box or ink fountain to draw lines at the bottom of the wall to determine the position of the concrete counter-bump. Use a marking pen to make detailed marks on the marked position to ensure that the position is accurate. Then build the template along the marked position to ensure that the template is stable and accurately positioned. Use a support frame or fixings to fix the template in the correct position to prevent the template from moving. Then pre-mark the position of the pipeline opening on the template and drill a hole in the template to ensure that the hole position is accurate. After preparation is completed, pour the concrete. After construction is completed, the concrete should be properly maintained to keep it moist and ensure that it is fully hardened. After the concrete reaches a certain strength (usually 24 hours), the formwork should be removed and the quality of the concrete counter-ridge should be checked to ensure that the surface is flat and free of cracks, and that the height is consistent with the decorative floor. The reserved pipeline openings should be checked to ensure that the openings are accurately located and of appropriate size. By ensuring the quality of the concrete counter-ridge, the stability of the overall structure is enhanced. By ensuring the accurate location and size of the openings, the construction accuracy is improved. By accurately reserving openings, rework in subsequent pipeline installation is reduced, reducing construction costs.

[0021] 4. Installation of keels: Fix the top and ground keels on the ceiling and the countersill respectively along the elastic line, and fix the frame keels along the elastic line. The edge line of the keel should coincide with the elastic line. Use a nail gun or electric drill on the ceiling along the elastic line, and select nails or expansion bolts to fix the top keel according to the design requirements. Use a nail gun or electric drill on the ground along the elastic line, and select nails or expansion bolts to fix the ground keel according to the design requirements. The spacing between the fixing points of the top keel and the ground keel should not be greater than 600mm to ensure that the keels are straight. Use a nail gun or electric drill along the elastic line, and select nails or expansion bolts to fix the frame keels according to the design requirements. The ends of the frame keels should be fixed, and the spacing between the fixing points should not be greater than 1 meter to ensure that they are firmly fixed. Fix the keel with nails or expansion bolts to ensure that the spacing between the fixing points meets the requirements, thereby improving the fixing strength of the keel. Through strict fixing spacing and levelness inspections, ensure that the keel is straight and the stability of the overall structure is improved.

[0022] 5. Electrical pipeline laying and wall-mounted equipment installation: Electrical pipeline laying and wall-mounted equipment installation are carried out simultaneously, using the precise data provided by the BIM model to ensure reasonable pipeline laying and accurate equipment installation; The precise data provided by the BIM model is used to ensure that the location, size and specifications of all pipelines and equipment are accurate. During the installation of the keel, the pre-embedded electrical pipelines are carried out simultaneously. According to the requirements of the drawings, holes are drilled in the wall with an electric drill to pre-embed cable trays, wire pipes or wire troughs. During the installation of the keel, the installation of wall-mounted equipment is carried out simultaneously. According to the marked positions, holes are drilled in the wall with an electric drill. Local reinforcement measures are taken in key areas and near equipment with larger loads. Additional fixings (such as expansion bolts, reinforcement brackets, etc.) are used for reinforcement to ensure that all reinforcement measures meet the design requirements and are firmly fixed. By strictly following the requirements of the drawings to pre-embed pipelines and equipment, the location of all electrical facilities is ensured to be accurate, the construction accuracy is improved, and firm fixation is ensured. By simultaneously installing the keel and electrical equipment, and taking local reinforcement measures, all equipment is ensured to be firmly fixed, the stability of the structure is enhanced.

[0023] 6. Keel inspection: Before installing the cement board, check the firmness of the partition frame and the installation of wall-mounted equipment and pipelines, and make necessary reinforcement to ensure that the vertical deviation and surface flatness of the keel meet the design requirements; Before installing cement board, use flashlight and steel ruler to check each connection point of partition frame, check whether the connection between keels is firm and whether there is any looseness, check whether the keel is firmly fixed to the wall and whether the fixing points meet the requirements, use steel ruler to measure whether the position of door and window frames meets the design requirements, use steel ruler to measure whether the position of wall-mounted equipment meets the design requirements, use flashlight to check whether there are gaps or looseness around wall-mounted equipment, use steel ruler to measure whether the position of pipes meets the design requirements, check whether pipes are firmly fixed and whether the spacing between fixing points meets the design requirements, use flashlight to check whether there is any looseness around pipes, use level ruler or laser to check whether the pipes are firmly fixed and whether the spacing between fixing points meets the design requirements, use flashlight to check whether there is any looseness around pipes, use level ruler or laser to check whether the pipes are firmly fixed and whether the spacing between fixing points meets the design requirements, use flashlight to check whether the pipes are loose, use level ruler or laser to check whether the pipes are loose, use level ruler or laser to check whether the position of door and window frames meets the design requirements, use steel ruler to measure whether the position of wall-mounted equipment meets the design requirements, use steel ruler to measure whether the position of pipes meets the design requirements, use steel ruler to measure whether the position of pipes meets the design requirements, use steel ruler to measure whether the pipes are firmly fixed and whether the spacing between fixing points meets the design requirements, use flashlight to check whether the pipes are loose, use level ruler or laser to check whether the pipes are loose, use level ruler or laser to check whether the position of door and window frames meets the design requirements, use steel ruler to measure whether the position of wall-mounted equipment ... Use a distance meter to check the verticality of the keel to ensure that the vertical deviation of the keel is ≤3mm. If the deviation is found to be more than 3mm, it needs to be adjusted or reinforced. Use a steel ruler or tape measure to measure the surface flatness of the keel to ensure that the surface unevenness of the keel is ≤2mm. If the flatness is found to be more than 2mm, it needs to be adjusted or repaired. Through detailed inspection, ensure that the installation and fixation of partition frames, door and window frames, wall-mounted equipment and pipelines meet the design requirements, enhance the firmness and stability of the structure, and through strict inspection standards (vertical deviation of the facade ≤3mm, surface flatness ≤2mm), ensure that the accuracy of the keel meets the design requirements and improve the construction quality.

[0024] 7. Installation of fiber cement board: Fiber cement board is installed by vertical laying. The joints are treated by beveling and embedding putty and pasting fiberglass tape to ensure that the board surface is flat and the joints are beautiful and firm. Prepare enough fiber cement boards according to the design requirements, check whether the boards are damaged or deformed, ensure the quality of the boards is qualified, install the fiber cement boards in a vertical laying manner, install the fiber cement boards one by one along the vertical keel, ensure that each board is close to the keel, use an electric screwdriver or electric drill to fix the boards, and ensure that the screw spacing meets the requirements: the screw spacing along the periphery of the fiber cement board should not be greater than 200mm, the screw spacing in the middle part should not be greater than 300mm, the distance between the screws and the edge of the board should be 10-15mm, and the joints should be properly Leave a gap (usually 3-6mm) and make sure the grooves are connected. Use sandpaper or a grinder to grind the joints to ensure that the joints are flat. Embed WKF joint putty at the joints to ensure that the putty is fully embedded and scraped flat with the grooves. Paste fiberglass tape at the joints to ensure that the fiberglass tape is tightly combined with the putty. Use a scraper to compact the fiberglass tape to ensure that the fiberglass tape is flat and free of bubbles. Ensure that the surface of the fiber cement board is flat and the construction quality is improved by strictly controlling the screw spacing and joint treatment. Ensure that the joints are beautiful and firm by connecting the grooves, embedding putty, and pasting fiberglass tape.

[0025] 8. Post-processing and acceptance: After completing all construction steps, carry out post-cleaning and sorting work and conduct acceptance.

[0026] During acceptance, remove all waste, debris and excess materials from the construction site, use brooms, vacuum cleaners, mops and other tools to clean the ground, ensure that the construction site is clean and free of residues, clean and return all construction equipment and tools, check the status of equipment and tools to ensure they are intact, organize the construction team to conduct a comprehensive self-inspection to ensure that the construction quality meets the design requirements and relevant standards, check whether the installation of light steel keel walls is firm and flat, check whether the installation of fiber cement boards is flat and the joints are beautiful, check whether the installation of electrical pipelines and wall-mounted equipment meets the requirements, check whether the quality of concrete counter-ridges is qualified and there are no cracks, voids and other problems. After the price difference is completed, rectify the problems and finally conduct acceptance. Through strict post-cleaning and self-inspection procedures, ensure that the construction quality meets the design requirements and relevant standards.

[0027] While 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 alterations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for early insertion of light steel keel partition walls, characterized in that: The following steps are involved: Preliminary preparation and foundation treatment: First, according to the design drawings and actual site conditions, 3D modeling was performed using BIM technology to accurately simulate the position and size of the light steel keel wall and the position and size of the reserved openings for pipelines. At the same time, the bottom of the wall was treated with foundation treatment to ensure that the flatness and strength of the ground met the construction requirements; Marking and dividing: At the junction of the partition wall and the upper, lower and two side bases, the line should be marked according to the width of the keel. According to the design requirements and the size of the fiber cement board, the position of the vertical keel, cross brace and additional keel should be determined; Make concrete counter-slope: According to the positioning of the layout, pour the concrete counter-slope at the bottom of the light steel keel wall with the same height as the decorative floor. At the same time, use BIM technology to deepen the design and accurately reserve the pipeline opening; Installation of keels: Fix the top and ground keels on the ceiling and the countersill respectively along the elastic line, and fix the frame keels along the elastic line. The edge line of the keel should coincide with the elastic line. Electrical pipeline laying and wall-mounted equipment installation: Electrical pipeline laying and wall-mounted equipment installation are carried out simultaneously, using the precise data provided by the BIM model to ensure reasonable pipeline laying and accurate equipment installation; Keel inspection: Before installing the cement board, check the firmness of the partition frame and the installation of wall-mounted equipment and pipelines, and make necessary reinforcements to ensure that the vertical deviation and surface flatness of the keel meet the design requirements; Installation of fiber cement board: The fiber cement board is installed by vertical laying. The joints are treated by beveling and embedding putty and pasting fiberglass tape to ensure that the board surface is flat and the joints are beautiful and firm. Post-processing and acceptance: After completing all construction steps, carry out post-cleaning and sorting work, and conduct acceptance.

2. A method for early insertion of light steel keel partition walls according to claim 1, characterized in that: In the preliminary preparation and basic processing steps, the collision detection function of the BIM model can be used to discover and solve possible problems in the design in advance, and based on the data provided by the BIM model, precise layout can be carried out on site to determine the position of the light steel keel wall.

3. A method for early insertion of light steel keel partition walls according to claim 1, characterized in that: During the marking and grading steps, the marking lines should be clear and the positions should be accurate. When dividing the gradations, the vertical main purlins and secondary purlins should be set according to the requirements of the design drawings.

4. A method for early insertion construction of light steel keel partition walls according to claim 1, characterized in that: In the steps of making the concrete counter-ridge, the position is determined according to the layout, and a line is drawn at the bottom of the light steel keel wall to determine the position of the concrete counter-ridge. The template is built along the marked position to ensure that the template is stable and the position is accurate. The height of the template should be consistent with the height of the decorative floor. The position of the pipeline opening is pre-marked on the template, and holes are drilled in the template to ensure that the position of the opening is accurate before pouring.

5. The method for early insertion construction of a light steel keel partition wall according to claim 1 is characterized in that: During the keel installation process, use nails or expansion bolts to fix the keel. The spacing between the fixing points of the top and ground keels should be no more than 600mm to ensure that the keels are straight. The ends of the frame keels should be fixed, and the spacing between the fixing points should be no more than 1 meter to ensure that they are firmly fixed.

6. The method for early insertion of light steel keel partition walls according to claim 1 is characterized in that: During the installation of electrical pipes and wall-mounted equipment, pre-buried pipes and wall-mounted equipment shall be carried out according to the requirements of the drawings. This shall be carried out simultaneously with the installation of the keel, or before the other side of the fiber cement board is sealed, and local reinforcement measures shall be taken to ensure that it is firmly fixed.

7. The method for early insertion construction of a light steel keel partition wall according to claim 1 is characterized in that: During the keel inspection step, you should check whether the firmness of the partition frame, the installation and fixation of door and window frames, various wall-mounted equipment, and pipelines meet the design requirements, and whether the vertical deviation and surface flatness of the keel meet the design requirements. The vertical deviation of the keel should be ≤3mm, and the surface unevenness should be ≤2mm.

8. The method for early insertion construction of a light steel keel partition wall according to claim 1 is characterized in that: During the installation steps of the fiber cement board, the fiber cement board is fixed with self-tapping screws. The screw spacing along the periphery of the fiber cement board should not be greater than 200mm, the screw spacing in the middle part should not be greater than 300mm, and the distance between the screws and the edge of the board should be 10-15mm.

9. The method for early insertion construction of a light steel keel partition wall according to claim 1 is characterized in that: In the post-processing and acceptance steps, the construction site is first cleaned up to ensure that all construction equipment and tools have been properly returned or evacuated from the site, then the construction team is organized to conduct self-inspection, and finally subsequent acceptance work is carried out.

Images