The characteristics of precast building engineering and the key points of supervision control are all right?
The ideal state is that the decoration can be carried out simultaneously with the main construction.
After pointing, it may be easy to fall off.
The gap is sometimes too large or uneven integrity during assembly, The characteristics of the cast structure in the ideal state with relatively weak seismic resistance The construction process of the cast building The lower space of the precast column hoisting is small, and it is not easy to observe.
It is completed in the form of cast structure.
Through the reflection principle of the small vanity mirror, it is convenient to insert the lower reserved reinforcement and the upper precast column hole, which increases the connection between the cast component and the cast-in-place layer, and ensures the reliability and safety of the structure, The surface of cast components shall be reserved with keyways or roughened.
At present, the floor slab usually adopts the form of 7+8 (70mm thick precast floor+80mm thick cast-in-place layer).
Adopt the integrated design and construction of architecture and decoration.
Key points of supervision and control for the construction of assembled monolithic concrete structure 1.
PC processing and installation control supervision measures 5 Acceptance of sub-divisional works of PC assembly integrated concrete structure PC construction supervision safety management 1.
After hoisting, bind the reinforcement of the cast-in-place layer and prepare to cast the cast-in-place layer concrete.
The reserved hole location accuracy is high.
PC component installation control supervision work methods: 3.
Key points of PC component installation supervision work methods and measures 1.
Key points of safety supervision for PC installation construction 4.
PC component processing supervision work methods 2.
There are also certain errors in the size of precast components.
Other structures are completed by cast-in-situ method.
PC structure quality acceptance requirements 4.
Features and advantages of precast building A large number of building components are produced and processed by the workshop.
Source: The copyright of Zhulong Forum belongs to the original author Project overview The total construction area of the project is about 140000 meters ²。 It includes a sales center, 6 residential buildings and underground garage.
Key points of safety protection for PC component installation construction 3.
Among them, the slab, stair, air conditioning board and partition wall of the residential building.
The setting out is accurate, the elevation measurement is accurate, and the allowable error is small.
With the digital management of the factory, the cost performance of the whole precast building will be higher and higher.
With the standardization of design and the informatization of management, the more standard the components are, the higher the production efficiency is, and the corresponding component costs will be reduced.
Meet the requirements of green buildings.
There can be many connection modes between precast components.
The building form is reinforced concrete shear wall structure.
General provisions of safety management 2.
The plate bottom gap is in the shape of an octagon.
There are a lot of assembly operations on site, which is much less than the original cast-in-place operation.
The main types of components are: exterior wall panels, interior wall panels, laminated panels, balconies, air-conditioning panels, stairs, precast beams, precast columns, etc.
Key points of safety supervision measures and methods Dust control supervision internal management Spring Festival welfare receipt click picture
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Disadvantages Due to the low popularity and high cost, the partial cast structure can not shorten the construction period.
Key points of PC component production control 2.