Train Compartment
MACTOLLI
Technical brief
1.Introduction and application background of aluminum formwork system
-Effect of construction quality improvement (construction quality depends on the quality of design and manufacture)
-To reduce the effect of construction cost
-To improve the effect field construction (to improve the construction ability of non-specialized person while reducing labor force)
-Improvement effect of construction site environment
-To build safe construction site (to prevent the occurrence of the accident of the construction site)
2.Effect of construction quality improvement (construction quality depends on the quality of design and manufacture))
-To keep accuracy of frame with high-quality design and accurate processing
-Vertical and horizontal accuracy
-To prevent the phenomenon of wallboard bulge and floor slab droop during frame construction
-To maintain consistency of frame quality (to prevent any change of the field builders)
-To prevent the occurrence of flaw and crack phenomenon
3.To reduce the effect of construction cost
-To shorten construction period
-To reduce the cost of opening, gap treatment and wall decoration
-To reduce scaffold, supporting and other related mounting cost and porterage
-To reduce the occurrence of construction waste and cost of field cleaning
-To reduce the cost of aided construction
4.To improve the effect field construction (to improve the construction ability of non-specialized person while reducing labor force)
-To ensure safe construction period (4-6d/layer)
-To improve the construction ability of non-specialized person
-Be sure to inspect drawings before construction to improve the efficiency of aided construction
-Accuracy of building landfill matter position (cable and equipment)
5.Improvement effect of construction site environment
-Cyclic utilization of material (wastes reduction, environmental protection, energy saving and emission reduction, conforming to the regulations of national green construction)
-Neat field management
6.To build safe construction site (to prevent the occurrence of the accident of the construction site)
-Guarantee support space to ensure enough working space
-Accurate design calculation system is applied to ensure construction safety
-To reduce the rate of accident in spot clean process
7.Outline of aluminum formwork system
1. Material and composition of aluminum formwork
(1) Definition: aluminum formwork system is the formwork system the aluminum formwork is processed via aluminium alloy extrusion proximate matter to make efficiency of construction of the construction site maximized.
(2) Material: A6061-T6
Characteristic:
Item Unit Proportion 6061-T6
Proportion Kg/cm3 2.71
Tensile strength Rm/MPa >260MPa
Tolerance Degree of stress Kgf/cm2 1.250
Zero coefficient Kgf/cm2 7.0*105
Composition
① Wallboard ②Floor slab, side keel, middle keel, cradle head ③ Slab connecting piece and support ④ Corner and beam side plate⑤ Materials of construction parts: pin (round), pin piece, pin (long), junction plate, support, others
Installation and price
Type of formwork | Aluminium alloy formwork | Bamboo glue formwork | Steel formwork | Plastic building formwork |
Price | 1400 | 50 | 800 | 100-230 |
Turnover frequency (times) | 200 | 5-6 | 100-200 | 50 |
Construction speed (day/layer) | 3-4 | 4-5 | 6-7 | 6-7 |
Proportion | 2.6-2.8 | 0.8-1.1 | 7.0-8.0 | 0.9-1.1 |
Carrying capacity | high | higher | high | low |
Applied rang | wall, column, beam and slab | wall, column, beam and slab | wall | wall, column, beam and slab |
Difficulty of construction | easy | easy | difficult | easy |
Maintenance charge | low | low | high | low |
Efficiency of construction | high | low | higher | higher |
Recovery value | high | low | recoverable, great loss | low |
Safet | good | poor | worse | good |
Structural flexibility | better, 20% nonstandard part | Good, formwork arrangement at any time available | Poor, limited quantity | Poor |
Summary | High recycling frequency, light, easy to build, large primary input-cost | Cheap, no limit in quantity, easy to absorb water, less practicality frequency, consumption of timber | Reusable, high maintenance charge, limited quantity | Moderate cost, durable, small rigidity and easy cracking |
Cost performance of aluminium alloy formwork and timber formwork | ||
Aluminium alloy formwork | Timber formwork | |
Price |
current price is 1800 Yuan/m2 |
45 Yuan/m2 (Contracting for labor and materials) |
Number of use | 300-500 times (One set of formwork can be reversely used according to standard construction) |
3-7 times (Note: be sure to consider the man-hour and manpower to remove the old timber formwork) |
According to the above comparison, it can be seen that usage rate of aluminum formwork is about 60 times of the timber formwork, Thus, we can calculate the price after the comparison between the actual price of aluminium alloy formwork and |
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Actual price of aluminium alloy for a block of 30-layer building is 1800÷60=30¥/m2. Plus manual installation cost of 200¥/m2, actual price is only 52¥/m2, exclusive of the recovery of aluminium scrap (400¥/m2), actually, it is lower than the price of timber formwork. |
Cases
Conglin Aluminum Technology
Conglin Aluminum will devote itself to the R&D and manufacturing of aluminum alloy deep processing and lightweight equipment, continuously expand the application fields of aluminum, and provide high-quality products for rail transit, energy-saving vehicles, offshore equipment, and green buildings.
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