1) door and window construction process
Preparation & rarr; Measurement, pay-off & rarr; Confirm installation benchmark & rarr; Install door and window frame & rarr; Correction & rarr; Fixed door and window frame & rarr; Civil plastering closing & rarr; install door and window fan & rarr; Fill foaming agent & rarr; Plug sponge stick & rarr; Door and window outer ring glue & rarr; Install door and window hardware & rarr; Clean and clean doors and windows & rarr; Check and accept
(2) construction preparation
1) technical preparation
① preparation of construction organization
After receiving the drawings, the installation personnel should be familiar with the drawings first. Not only should we understand the construction drawing of doors and windows, but also the construction drawing of civil buildings, mainly understanding the following aspects:
Have a comprehensive understanding of the drawing content;
Find out the dominant size (grid) of the design, and the size cannot be adjusted and adjustable;
Verify the construction scheme and design against civil engineering drawings;
Understand the location of elevation changes and the characteristics of elevation changes.
② before installation on the wall, first check the flatness and verticality of the opening surface should conform to the construction specifications, and review the baseline provided by civil engineering. Negotiate with the civil construction team in advance on the wall installation steps, technical requirements, etc., to achieve mutual cooperation, to ensure the quality of product installation.
③ measure the plane position, elevation and hole size deviation of each door and window opening according to the control line of door and window installation elevation and plane center position line pop up in civil construction. It is required that the allowable deviation of the width and height of the opening is ± 10mm, and the maximum deviation of the vertical horizontal degree of the opening is no more than 10mm. Otherwise, the civil construction team is required to repair the super-poor hole before installing the door and window frame.
④ according to the measured deviation of door and window openings, conduct mathematical statistics, and finally determine the plane position and elevation of each door and window installation according to the statistical results.
a. Determination of installation plane position of doors and windows
According to the statistical data of the plane position deviation of the door and window opening in the same part of each floor, the average V1 of the plane position deviation of the door and window in this part is obtained (this value has direction); then, the deviation Q1 with the highest probability of the position deviation of the center line of the door and window opening is counted.
When the occurrence probability of the deviation Q1 with the highest probability is less than 50%, the plane position of door and window installation is: the theoretical position of the center line of door and window hole plus the mean V1 of the plane position deviation of door and window hole; when the occurrence probability of the deviation Q1 with the highest probability is greater than 50%, the installation plane position of doors and windows is: the theoretical position of the center line of doors and windows holes plus the deviation Q1 with the highest probability of occurrence.
B. Determine the installation elevation of doors and windows
The installation elevation of doors and windows shall be determined on each floor, and the lintel of doors and windows of different types on the same floor shall be ensured to be at the same elevation.
Elevation deviation A measured by the elevation control line of doors and windows. According to the elevation deviation of all doors and windows on this floor, the average deviation V2 (this value has direction) and the deviation Q2 with the highest probability of occurrence are obtained. When the probability of occurrence of deviation Q2 with the highest probability is less than 50%, the installation elevation of doors and windows on this floor is: the theoretical position elevation of doors and windows holes plus the average value V2 of the elevation deviation of doors and windows holes; when the occurrence probability of the deviation Q2 with the highest probability is greater than 50%, the installation elevation of doors and windows on this floor is: the theoretical position elevation of doors and windows holes plus the deviation Q2 with the highest probability of occurrence.
⑤ clean the holes one by one.
2) Personnel Preparation
① construction personnel
Installation personnel must undergo professional technical training.
② pre-job training
After the workers enter the site, the project manager will explain the importance of the project to all the construction personnel entering the site, so that all the construction personnel can understand the general situation of the project and various requirements of the site.
The constructor will explain the relevant standards, specifications, safety management regulations on the construction site and safety production standards to the operators in detail.
Technicians provide construction personnel with the disclosure of construction scheme, technology, safety and other aspects, so that workers can know fairly well before construction and be familiar with the construction quality standards of each link, in order to achieve strict control in the construction process.
(3) installation of door and window frame
Doors and window frames shall be carried out before exterior wall insulation and indoor plastering construction. According to the construction plan, the door and window frame to be installed will be transported to the designated position, and pay attention to the protection of its surface.
Insert the fixed piece into the assembled door and window frame. The position of the fixed piece should be 150 ~ 2OOmm from door and window corners, middle vertical frame and middle horizontal frame, and the spacing between the fixed pieces should not be more than 60omm. The fixing piece shall not be directly installed on the gear lever top of the middle horizontal frame or the middle vertical frame.
According to the design drawings and the opening direction of the door and window fan, determine the installation position of the door and window frame, install the door and window frame into the hole, and align the middle line of the upper and lower frames with the middle line of the hole. Measures to prevent deformation of doors and windows should be taken during installation. Vertical hinged door without lower frame shall make the lower legs of the two frames 3Omm lower than the ground elevation line. Vertical hinged door or sliding door of the lower frame should make the lower frame lower than the ground elevation line lOmm. Then fix a fixed piece of the upper frame on the wall, and adjust the levelness, verticality and square trowel of the door frame, and fix it temporarily with wooden wedge. When the length of the current frame is greater than 0.9m, the middle of the frame is also blocked with wooden wedge. Then adjust verticality, levelness and square trowel.
(4) installation of door and window fan and hardware
Process: construction preparation & rarr; Inspection and acceptance & rarr; Place the door casement in layers & rarr; Initial installation & rarr; Adjustment & rarr; Fixed & rarr; Self-inspection & rarr; Inspection.
Doors and windows are installed before the external insulation construction is closed and the exterior wall coating is constructed. Doors and windows can be assembled on the ground first, or installed after the installation and acceptance of the door and window frame.
Use vertical lifting equipment to transport the door casement and glass to each floor to be installed one after another, and the workers will transport them to the installation site.
Review the assembled doors and windows before putting them on the wall. If it is found that the assembly is not qualified, or if there are serious scratches or scratches, the lack of accessories should be dealt with in time.
Install the door and window fan according to the drawing requirements; The frame and the door and window fan are closely matched and the gap is even; The allowable deviation of the overlapping width between the door and window fan and the frame is ± 1mm.
Door and window accessories must be fully installed, accurate in position, firm in installation, correct in opening or rotating direction, flexible in opening and closing, and free of noise. Accessories that bear repeated movements should be easily replaced in structure.
(5) glass installation and gluing
Fixed doors and windows glass, after the door and window frame needs to be plastered for health preservation, use adjustable pad pieces to adjustable pad the glass in strict accordance with the "plastic steel doors and windows Technology Standard.
Before installation, adjust the hinge, control the reserved gap on both sides of the glass is basically the same, and then install the buckle. When installing glass, use plastic pads to plug the glass up and down to prevent the deformation of doors and windows; After assembly, ensure the gap between the glass and the inlaid groove, and install anti-vibration pad pieces in the main parts, it can buffer the impact of opening and closing force.
Clean and modify.
The sealing work, such as foaming agent, plug sponge stick, glue, etc., shall be carried out before the construction of exterior wall coating of insulation surface layer and main frame is completed.
First, clean up all the garbage in the reserved slot around the door and window frame with compressed air, then inject foaming agent into the slot, and make the foaming agent overflow the slot naturally; clean up the overflow foaming agent and make it into a groove with width × depth 10mm × 10mm(53 series doors and windows) and 20mm × 10mm(64 series doors and windows) along the perimeter of the main frame. Insert sponge stick into the groove to accurately position, then clean up the dust and sundries on the surface of the base layer, put the protective tape and glue it. After the glue injection is completed, tear off the protective tape and clean the main frame of doors and windows and the surface of window sill (if necessary, wipe it with solvent). Pay attention to maintenance after glue injection. Do not stick Gray and bump glue-line before glue is completely cured. Finally, do a good job of cleaning up.
4.1.4 quality standards for processing and installation of doors and windows
(1) the allowable deviation of door and window assembly is shown in the following table.
Allowable deviation table for door and window assembly
Allowable deviation of items
(mm) inspection method
1 door and window slot width and height ≤ 1500mm 2 check with steel ruler
> 1500mm 3
2 door and window slot diagonal length difference ≤ 2000mm 3 check with steel ruler
> 2000mm 5
3 the verticality of the front and side of the door and window frame 3 check with 1m vertical measuring ruler
4 horizontal degree of horizontal frame of doors and windows 3 check with 1m horizontal ruler and feeler gauge
5 door and window frame Elevation 5 check with steel ruler
6 vertical deviation of doors and windows from the center 5 check with straight steel ruler
7 double-layer doors and windows inner and outer frame spacing 4 check with steel ruler
8 The height difference between adjacent fans of flat doors and windows of the same floor 2 check with straight steel ruler
9 vertical hinged door casement hinge parts fit gap +2;-1 check with feeler gauge
10 sliding door casement and lap volume +1.5;-2.5 check with straight steel ruler
11 sliding door casement parallelism with vertical frame 2 check with 1m horizontal ruler and feeler gauge
4.1.5 finished product protection measures
(1) protection in processing stage
Profiles processing, storage required bench, etc. are padded rubber mat and other soft objects.
Profiles turnover trolley, tools and other contact parts with profiles are protected by rubber mat, and profiles are not allowed to directly contact with steel parts or other hard objects.
The processed door and window frame is placed vertically, and the lower part is wooden square.
Protective measures such as rubber pad are taken on the glass shelf for glass transportation.
The glass processing platform should be flat and padded with soft objects such as felt.
(2) protection in packaging stage
The profile packaging adopts the method of sticking protective tape first and then outsourcing knitted belt to implement protection. Before packaging, clean the surface and debris in the cavity to prevent scratching the profile; When defects such as profile deformation, surface scratching, bubbles, corrosion, etc. or other product quality problems are found during the packaging process, it should be extracted immediately, store separately and do not leave the factory.
For profiles with small section size, they should be bound with knitted belt according to the specific size; Profiles with different specifications, sizes and models cannot be mixed together; The packaging should be tight, avoid bulk bags during turnover transportation.
After the packaging is completed, if it cannot be loaded and sent to the site immediately, it should be placed in the designated place and stored neatly.
(3) construction site protection
Frame materials not on the wall shall be stored in the temporary warehouse of the construction site, and shall be placed neatly according to the category and size.
Before the frame material is put on the wall, remove the package knitted belt; However, the engineering protective tape pasted on the surface of the frame material shall not be torn off to prevent the indoor and outdoor plastering and painting from polluting the frame material. The protective tape on the surface of the door and window frame and the fan should be torn off after the exterior wall coating, indoor plastering and external scaffold removal.
When sealing sealant is applied to the door and window frame and the wall surface and spraying exterior wall coating, Casement should be pasted on the glass, door and window frame and textured paper to prevent contamination of the frame material and glass.
Strengthen on-site supervision to prevent collision with the surface of doors and windows frame materials when removing scaffolding, so as to prevent deformation and surface damage.
Key points of door and window engineering construction
Door and window engineering
1. Construction preparation
(1). The type and variety of doors and windows meet the requirements of the drawings and are qualified by on-site sampling.
(2) the allowable deviation of the quality, shape and size of doors, windows and glass products shall conform to the specifications.
(3) check the position, size and elevation of door and window holes, and check whether the quantity and quality of embedded parts of door holes meet the design requirements.
(4) before construction, the professional foreman will set out the layout and the team disclosure according to the actual construction drawing.
2. Process Flow
Bullet line finding rules & rarr; Door and window opening Processing & rarr; Position and temporary fixing & rarr; Door and window frame fixing & rarr; Caulking & rarr; Casement installation & rarr; install hardware accessories & rarr; Clean up
3. Installation and construction of doors and windows
(1) installation of doors and window frames should be carried out after wet operations such as indoor and external plastering, leveling and roughening are completed. (2). Elastic line: first, the center line in the door and window hole should be popped out, and the width of the reference hole should be determined from the center line. After the door and window frame is installed, it should be consistent with the size of the wall external corner line. Horizontal lines with the same elevation are displayed on both sides of the opening, and the elevation of the horizontal lines should be the same in the same floor.
(3) installation of door and window frame: fix the door and window frame with wooden wedge temporarily according to the position of the elastic line, repeatedly correct the verticality and levelness of the door and window frame with horizontal ruler and supporting board, and adjust wooden wedge until the door and window frame is vertical and horizontal. Finally, use fastener to fix its connector on the wall. After checking and correcting, attach the protective laminating film. In the future construction, it is forbidden to put aside foot plank or other heavy objects.
(4) the connection position between the door and window frame and the wall: it should be set at 150mm from the angle of the frame and the intersection of the frame, the middle horizontal frame and the middle vertical frame, and the spacing between the connection points should not be greater than 500.
(5). Clearance treatment between door and window frame and wall: the outer door and window should first be fill plug foaming agent, and then sealed with special sealant. Wooden door frame the gap between the wall and the wall should be fill plug and dense with mixed mortar twice.
(6) Casement installation: After the construction of the surface layer of the inner and outer wall and the ground of the building is completed, the installation will be carried out.
(7). Sealant construction: remove the oil and dust on the surface of the sticky object. The sticky object should ensure a certain degree of dryness. It is required that the sealant should be eaten into the window frame 5mm, and the surface of the sealant should be flat after construction.
4. Quality standards and assurance measures
(1) doors and windows must conform to the design requirements and construction specifications.
(2) in order to ensure that the door and window frame are installed firmly, embedded parts or blocks and connecting iron parts must meet the requirements and be installed firmly.
(3), the gap between the four sides of the door and window should not be too large or too small, and should be filled full.
(4), the door and window are closed tightly, open flexibly, without block, rebound and upturn; The accessories are complete.
5. Protection of finished products and semi-finished products
(1) strengthen the protection during construction, and do not tear off the protection laminating film attached to the edge of the frame at will. After the painting process is completed, the protective laminating film will be torn off, and the plastic laminating film will leave glue marks on the surface of the plastic aluminum profile, which should be cleaned with banana water.
(2) in cross operations, especially in the process of removing scaffolding, wood baffle should be used to protect the installed doors and windows to avoid steel pipes or hard objects from being damaged.
