I. Compilation Description
Compilation basis of 1. 1
1, the engineering drawings and construction contract of the second phase 15# building of Jianghuai Renjia Community provided by Huai 'an Ping 'an Real Estate Development Co., Ltd.;
2. Unified standards for construction quality acceptance of building projects;
3. Regulations on the Administration of Work Safety in Construction Projects;
4. Construction organization design of buildings 12#, 15# and 18# in Jianghuai Renjia Residential Area Phase II.
Second, the project overview
2. 1 Employer: Huaian Ping 'an Real Estate Development Co., Ltd.
2.2 project name: buildings 12#, 15# and 18# in the second phase of Jianghuai Renjia Community.
2.3 Project location: north of Beijing West Road, east of Beijing North Road, in Jianghuai residential area.
2.4 Designer: Beijing Sino-foreign Architectural Design Co., Ltd.
2.5 Supervision unit: Huai 'an Zhongsheng Construction Engineering Supervision Co., Ltd.
2.6 Construction unit: Huai 'an Branch of Zhejiang Xintianyi Construction Co., Ltd.
2.6 Overview of some construction projects
Jianghuai Renjia Community Phase II 12# Building is located in the east of Building 2# in the community. The foundation is a strip foundation, and the main body is a six-story frame structure and special-shaped section frame columns. The attic has a sloping roof. 0.000 is equivalent to the elevation of the Yellow Sea14.100m.15 # building is located in the northeast of 5 # building in the community. The foundation is a strip foundation, and the main body is a 6-story frame structure and special-shaped section frame columns. The attic has a sloping roof. The building 15# 0.000 is equivalent to the elevation of the Yellow Sea 15.800 m ... The second phase of Jianghuai Renjia Community 18# building is located on the east side of the 5# building in the community. The foundation of 18# building is raft foundation; The main body is a 6-story frame structure and a frame column with special-shaped section; The roof of the attic is a sloping roof, and 0.000 is equivalent to the elevation of the Yellow Sea15.800 m. The balcony doors and windows of Jianghuai Renjia Phase II 12#, 15# and 18# all adopt plastic steel doors and windows and aluminum shutters.
Third, the construction method and key points
3. 1 process flow:
Striking lines to find rules-door and window hole treatment-installation connector inspection-door and window processing inspection-installation-sealing around-hardware accessories-cleaning.
3.2 Stacking, storage and hoisting of finished door window frames.
Before entering the site for installation, the project leader must make construction disclosure to all the staff of the door and window installation team, archive the written disclosure information and provide the installation baseline.
3.3 Plastic doors and windows assembly technical requirements
This door and window combination material shall be manufactured and installed with reference to Su J002-2000 Atlas. Before doors and windows enter the site, three basic physical properties must be tested: wind resistance, air permeability and rain leakage.
(1) Our company is very strict in the choice of accessories for finished products:
(1) door and window profiles meet the requirements of GB/88 14.
(2) the sealing strip for doors and windows meets the requirements of GB/ 1200Z.
(3) The surface of steel bars for doors and windows and their fasteners has been rusted. The wall thickness of reinforced steel shall not be less than1.2mm. The specifications and quality of metal materials of reinforced steel fasteners and hardware for doors and windows must meet the mechanical performance requirements of doors and windows.
(4) The glass used for doors and windows must be float glass with national certificate, the thickness is generally not less than 5mm, and the single-layer glass of insulating glass is not less than 4 mm. ..
2 door and window assembly:
(1) The strength of door and window frames and door and window angles meets the national standards.
(2) The reinforcement must be consistent with the inner cavity of the profile, and its length should not affect the welding of the end. There shall be no less than three fasteners for fixing each reinforced section steel, with the spacing not greater than 300mm and the distance from the end of the section steel not greater than 100mm. Fixed reinforcement shall not be loose.
(3) Fasteners adopt φ4mm self-tapping screws with large head, and the diameter of drilled bottom hole is not more than 3.2 mm ..
(4) The door window frame has a drain.
(5) The diagonal difference of door window frame and door window sash is not more than 3 mm ..
⑥ The assembly gap between adjacent components of door window frame and door sash should not be greater than 0.5 mm, and the same flatness of the welded parts of two adjacent components should not be greater than 0.8 mm. ..
⑦ At the four corners of door and window frames and door and window sashes of assembled structure, lining connectors should be added in the inner cavity of component profiles. The connector is connected with the reinforced section steel through fasteners.
After the end sealing strip is assembled, it is uniform and firm, with tight interface and no groove phenomenon.
Pet-name ruby when loading glass, add shockproof blocks around the glass.
(3) Installation technology of plastic doors and windows:
The installation method of our project department is divided into fastener installation or direct expansion screw installation, which generally depends on the actual situation of the hole.
(1) The clearance between the door frame and the hole should be between 0.5 and 20 mm. ..
(2) the lower frame sliding door frame height should be smaller than the hole height 5 ~10 mm..
(3) There are not less than 3 fasteners on each side of the door window frame, and the gap between each adjacent fastener is not more than 400 mm ..
(4) Fasteners are connected to the wall with tapping screws of not less than φ4mm at one end of the door window frame, and directly driven into the wall with nails at the other end, with a depth of not less than 2mm.
(5) the expansion screws are directly driven into the wall from the inside of the door window frame, the length of the expansion screws is not less than 80mm, and the spacing between adjacent expansion screws is not more than 500 mm ..
⑥ Treatment method of joint between door and window frame and wall: fill the gap between frame and wall with foaming agent, level the overflowing part of foaming agent with a shovel, and then cover it with cement. After the cement is dried, evenly apply sealant to the joint.
(4) Technical methods of plastic door and window glass installation:
(1) Before installing the glass, clean up the dirt in the cutting mouth, and evenly apply 1~3mm thick bottom putty along the whole length of the cutting mouth.
(2) Install glass whose long side is greater than 1.5m or whose short side is greater than 1m, and fix it with rubber pads, battens and screws.
(3) The glass installed in the mullion should be placed on two identical locating blocks, and the distance between the placing point and the vertical edge of the glass should be 1/4 of the glass width and should not be less than150 mm..
(4) When installed on the fan glass, the position of the locating block shall be determined according to the opening direction. The width of the positioning pad should be greater than the thickness of the supported glass, and the length should be not less than 25mm, and it should meet the design requirements.
(5) after the glass is installed in place, its edge shall not contact with the frame, fan and its accessories, with a gap of 2 ~ 3 mm ..
⑥ All materials used for glass installation shall not affect the smooth drainage system.
⑦ When the glass is embedded in the sash, the stress around the glass should be uniform when the filler and fillet are filled.
3.4 Windows and doors installation requirements
(1) (1) The position of UPVC window frame fasteners is apart from the window angle, middle vertical frame and middle horizontal frame 150-200mm, and the spacing of fasteners is less than or equal to 600mm. The plastering layer or facing layer should be temporarily separated from the window frame by thin plates around the outer edge of the window frame. The width of the base layer is 5 mm and the depth is 5-8 mm. After the plaster layer or adhesive layer is hardened, the thin plate should be removed and the sealing paste should be squeezed into the gap for sealing. For projects with high requirements for thermal insulation and sound insulation, sealing paste should also be used between the inside of the hole and the window frame.
(2) The position of ⑵UPVC door frame fasteners is away from the door angle 150-200mm, and the spacing of fasteners is less than or equal to 600mm.
(3) (3) UPVC doors and windows and metope, should be fixed on the door frame, and then fixed door frame. The hole of concrete wall should be fixed with nails or plastic expansion screws; Brick hole should be fixed with plastic expansion screws or cement nails, and brick joints should not be fixed; For holes with embedded iron parts, welding method should be adopted, or bottom holes should be drilled on the embedded parts according to the specifications of fasteners, and then fixed with fasteners. When inlaying with a rubber pad, the rubber pad should be close to the cutting mouth, glass and layering, and be neat and consistent.
(4) The assembling material of the combination window and casement window door should be reinforced as the lining, and the length of both ends of the reinforced bar should be10 ~15 mm.. The section size, shape and wall thickness of the external window should enable the combined window to withstand the instantaneous wind pressure in this area.
3.5 The installation of door and window accessories shall meet the following requirements
(1) Accessories shall be complete and there are no missing parts.
(2) Accessories shall be assembled firmly and reliably, and all fasteners shall reach the tightest position.
③ The assembled accessories should be applied flexibly to realize their respective functions.
Fourth, the construction management
4. 1 The planned construction period of doors and windows is 20 days, and the quality of doors and windows is qualified.
4.2 According to the requirements of the construction period and quality commitment determined by this project, in the construction of doors and windows, the factors of production are rationally allocated to ensure the construction progress, ensure the construction quality of basic projects and achieve the contract objectives.
4.3 In the process of construction, the relationship between each type of work and the construction sequence should be arranged reasonably to ensure the orderly construction. Reasonable deployment of labor force to meet the needs of construction progress.
4.4 According to the construction progress, timely purchase building materials, and do a good job in the inspection according to the specification requirements.
4.5 In the construction of doors and windows, the construction shall be carried out in strict accordance with the requirements of relevant specifications to ensure the construction quality of external wall insulation engineering.
4.6 Strengthen the supervision and guidance in the construction process, and effectively control the whole process of door and window construction.
4.7 Each type of work should do a good job in team self-inspection and process inspection during construction to ensure the construction quality of each process.
4.8 Collect, record and sort out the quality assurance data in time according to the specification requirements, so as to ensure that the data are true, complete, standardized and synchronized with the construction progress.
Five, safety and civilized construction
5. 1 The goal of safe and civilized construction of doors and windows engineering is: zero safety accidents above minor injuries, and the construction site is clean and civilized.
5.2 Before construction, all mechanical equipment shall be inspected, debugged and submitted for inspection before being put into use. In the process of use, the responsibility system is implemented by special personnel, and special personnel are assigned to carry out daily repair and maintenance work.
5.3 In the process of construction, the construction personnel shall be given safety education, and the safety precautions shall be made clear. In the process of construction, all safety rules and regulations and operating procedures must be strictly observed to ensure safe construction.
5.4 Construction materials shall be stacked in an orderly manner as required to keep the site clean and tidy.
5.5 Attention should be paid to the pollution of glass during installation of glass engineering, and it should be cleaned after installation to ensure the cleanliness of glass. After the completion of the glass project, the surface should be clean, and no stains such as putty, cement slurry and paint can be left.
Construction and acceptance of door and window covers
build
1. Make curtain boxes according to the requirements of rooms and drawings. If curtain rod is installed directly without curtain box, attention should be paid to the opening distance of window frame and the thickness and length of curtain rod when installing curtain rod.
2. When making a panel curtain box, first make a 7-shaped frame and nail it on it, and seal both sides with joinery boards. The lower mouth of mullion shall be reinforced and nailed with 20* 18mm batten to prevent deformation. For example, if the panel is sealed with clear water and painted with mixed water, it is necessary to ensure that the surface of the grass-roots level is smooth and bright.
3. When the window cover is joinery board or density board, the base plate should be fixed on the base keel of the window frame first, and then the lines and serrated nails should be nailed to prevent the lines from warping, and the included angle should be dense and flat. Marble should be used for the lower opening of the window cover to avoid blackening and deformation due to moisture.
4. The door cover should be made of wooden frame, planed and straightened, and then assembled and installed on the wall to cover the base plate and decorative panel.
Inspection before acceptance
1, the door cover should be vertical, the decorative panel should be pasted flat and square, and there should be no big head and bell mouth.
2, wooden doors, window coverings, neat corners, tight joints, smooth surface, no gouges, burrs.