The early formwork removal system used in the project can remove the formwork at the floor and beam bottom in advance when the strength of the floor has not reached the formwork removal strength specified in the construction specification, so as to speed up the formwork turnover
.
The flue must be installed at the joint of the floor, and the joint between the upper and lower pipes shall be sealed with cement sand and plain ash
.
For the installation of window frame, the size of concrete window opening shall be checked before installation, and then the position of window frame shall be determined according to the horizontal and vertical center points, which shall be fixed with shooting nails
.
The direction of electrical pipes must be arranged in strict accordance with the water and electricity pipeline diagram
.
When installing the handrail, pay attention to the base treatment of the construction site first
.
The foaming agent beyond the frame shall be pressed to 2-5mm lower than the frame surface and shall not be cut
. 
▲ for the embedded installation of electrical pipes and bottom boxes, the N-9 layer is plastered with wet environment cement mortar, and the N-9 layer is plastered with wet environment cement mortar
.
During the installation of window sashes, attention shall be paid to the assembly quality, and the joint shall be flat without edge splitting and angle channeling
.
The simultaneous processes are formwork removal and structural repair
.
During the installation of water supply pipe, attention shall be paid to the inside of the wall and under the ground, and the connecting accessories shall be used or not used as much as possible to reduce the potential leakage points
.
When the reserved opening of the pipe shaft is used for hanging, the opening must be cleaned, and the formwork must be poured and wetted after the opening is erected
.
The area within 50 cm around the hole must be cleaned and the inner wall must be wetted with clean water
. 
▲ embedded installation of electrical pipes and bottom boxes on the n-8th floor of masonry back caulking
.
Some uneven places of the external wall shall be polished with a grinder
. 
The installation plane of the bottom box must be vertical, and the bottom box in the same room must be installed on the same horizontal line
.
Embedded installation of electrical pipes and bottom boxes shall be carried out on the n-8th floor
.
▲ for interlayer water stop, the window frame shall be caulked and sprayed with foaming agent outside the N-2 layer
. 
During the indoor operation of the n-3 floor, the external wall shall be insulated and coated
.
Each process on the same floor can be divided into several construction surfaces according to the single external facade, which can be completed in sequence
. 
During the construction process, it shall comply with code for acceptance of construction quality of concrete structures GB50204
.
When pouring and mixing with concrete not less than C20 and a small amount of expansion agent, the hole after pouring should be 10 to 20mm lower than the floor slab surface
.
The nth-5th floor is for guide wall construction and flue installation
.
The thermal insulation construction is followed by the construction of anti crack mortar and putty coating
.
When the masonry back joint is plugged, the back joint shall be filled with micro expansion concrete and troweled
. 
How can the main body and decoration be constructed synchronously? Instance sharing! The main body and decoration are constructed simultaneously, that is, during the construction of the main structure of the building, the decoration processes such as doors and windows, thermal insulation, coating and railings of each floor below the construction floor are constructed synchronously with the main structure, and each construction process is independent and does not interfere with each other, so as to realize three-dimensional operation, shorten the overall construction period and improve the overall construction efficiency
.
Click the blue word to share and pay attention to our typical example of synchronous interspersed construction of main body and decoration
.
▲ window frame installation, interlayer water stop, drainage riser installation, window caulking, foaming agent application, interlayer water stop and drainage riser installation on layer n-2
The above procedures shall be completed within 1 ~ 2 months after the capping of the main structure, so as to improve work efficiency and shorten the construction period
.
Example sharing: in the Vanke project, the sixth company of China Construction Fourth Engineering Bureau Co., Ltd
.
It can be repaired only after meeting the requirements
.
The insulation construction can be carried out only after the requirements of the insulation materials are met
.
▲ the installation of window sashes on the N-11 layer of indoor thin plastering and the installation of external window sashes on the N-11 layer of floor construction
.
There shall be no looseness at the part where the handrail is installed, and the installation elevation shall meet the design requirements
. 
Indoor thin plastering on the nth-10th floor indoor thin plastering on the nth-10th floor
. 
The progress of each process is carried out with the climbing progress of the climbing frame, and all working faces are concentrated on the floor covered by the climbing frame, so as to realize three-dimensional operation
.
Waterproof cement mortar shall be used in kitchen, toilet and other wet environments
. 
▲ during masonry construction, the N-7 layer masonry back joint and the N-7 layer flue hanging hole shall be treated with masonry back joint and flue hanging hole
.
Synchronous interspersed construction characteristics (1) the process optimization of the combination of construction deepening and design drawings is one of the preconditions for the smooth development of synchronous construction of various disciplines above the ground of residential engineering（ 2) All working faces are concentrated on the floor covered by climbing frames
. 
▲ masonry construction on the n-6th floor of the guide wall
.
Before the flue hanging hole, check whether the hole has been repaired to meet the requirements
. 
After the railing is installed, it is mainly wrapped for finished product protection
. 
Through the process optimization of the combination of construction deepening and design drawings, the project prepared detailed construction schedule and special construction scheme for each construction process of different disciplines, relying on aluminum alloy formwork and attached integral lifting scaffold, during the construction of the main structure, The doors and windows, thermal insulation, coating, railings and other construction processes are inserted in each floor below the construction floor
.
Due to the rainwater and maintenance water flowing down from the reserved openings on the high floor, toilets, balcony landing openings, elevator shafts and staircases, the alternate construction and finished product protection of other subdivisional works downstairs will be affected, Therefore, this method is adopted to ensure the progress of interleaved construction
.
The installation of connecting accessories shall be firm without leakage
. 
During the construction, pay attention to the cleaning of the base course, clean the dust on the surface, wet the apron, and finally press polish.
.
The indoor concrete wall is free of plastering, and the infilled wall is leveled with the concrete wall by thin plastering
.
Before thin plastering, the joint between infilled wall and concrete wall shall be strengthened as required
.
▲ thermal insulation construction ▲ setting out of kitchen and toilet inverted sill, water supply pipe installation and railing installation on the nth-4th floor of coating construction; setting out of kitchen and toilet inverted sill in advance on the nth-4th floor
.
The base course shall be inspected before the insulation construction
.
After the formwork is removed, the screw hole shall be blocked, and some uneven edges and corners shall be repaired
.
The uneven parts must be removed or repaired
.
▲ window caulking, foaming agent ▲ external wall screw hole plugging, top support removal of layer n-3, pipe hanging hole, external wall insulation construction and primer layer n-3, the concrete strength has met the requirements, and the top support can be removed and recycled to the upper concrete structure construction layer for further use
.
▲ when the formwork is removed, repair shall be carried out in the room on the N-1 floor, and the external wall shall also be repaired
.
▲ installation of window sashes the floor shall be constructed at the same time as the installation of window sashes
.
See code for acceptance of construction quality of concrete structures (GB50204) for guide wall construction
. 
The construction processes of each floor are independent and do not interfere with each other（ 3) Space three-dimensional synchronous construction can greatly improve the overall construction efficiency and shorten the overall construction period（ 4) Phased acceptance creates favorable conditions for synchronous construction of all disciplines in advance（ 5) The finished products of each discipline and each process have high quality assurance, creating favorable conditions for unit project acceptance
. 
▲ guide wall construction and flue installation on the nth-5th floor of railing installation
.
The handrail shall be installed outdoors on the n-4 floor
. 
Before spraying foaming agent into the gap between the window frame and the wall, the floating ash around the window frame shall be chiseled and cleaned, and the hole shall be watered
.
During the construction, product protection must be strictly done, and the mortar splashed on the surface of doors and windows must be removed in time
.
Before the installation of the flue, the ventilation flue must be checked
.
Before the hanging hole, the hole must be roughened
.
▲ binding of wall column reinforcement ▲ formwork removal, structural repair, external wall repair and window frame installation on the N-1 floor of wall column formwork erection
.
See code for design of masonry structures (gb50007) for masonry construction on the n-6th floor
.
Whether the construction efficiency can be reasonably improved and the construction period can be shortened by organizing synchronous interspersed construction also tests the construction management level of the project department
.
carried out the synchronous interspersed construction of the main body and decoration
.
Process flow instance sharing layer n The nth layer of reinforced concrete structure construction is the construction layer of reinforced concrete structure layer, including slab binding of wall column reinforcement, wall column formwork, top support support, beam slab formwork and slab binding of beam slab reinforcement
.
The floor construction is mainly the construction of fire stairs
.
