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Economic comparison between aluminum formwork and traditional formwork

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Economic comparison between aluminum formwork and traditional formwork

Date of release:2018-10-24 Author: Click:

The construction budget cost of China's support and formwork, including equipment and working hours costs, far exceeds that of other countries. The reason is that we still use traditional and low-efficiency traditional formwork and extensive construction methods.


       The key to solving these problems is the adoption of new templates and support systems that are efficient, modular, and reusable.


       The new formwork - the aluminum alloy formwork system is a formwork system that uses aluminum alloy extruded profiles to form aluminum formwork to maximize the construction efficiency of the construction site.


Aluminum alloy template


       1. Wall panel 2. Floor slab, side keel, middle keel, support head 3. Floor joint and support 4. Corner and beam side panel 5. Construction parts and materials: pin (round), pin, pin (long) , connecting plates, brackets, and others.


       2. Aluminum formwork system (stereo) assembly drawing.


First, the type and composition of aluminum template


       1. Wallboard Template for wall construction


       2. Floor slabs for floor construction


       3, blocking plate for the construction of the wall end parts


       4, corners for the main construction of the corner panel


       5, beam side panel template


       6. Corner member The link member between the wall panel and the floor panel


       7. Inner corners Internal link members between the wall panel and the ceiling panel


       8. Medium keel The formwork member located in the middle to support the supporting force of the floor


       9. Side keel The material at the end of the floor


       10. Support head The material of the floor support head is retained before the concrete solidifies (retains 3 layers)


2. Auxiliary materials and tools


       1, pin (circle) connection template


       2, pin piece for connecting pin


       3, the pin connects the support column head and beam


Aluminum formwork system economic indicators


 01 Reduce the cost of construction


       1. Shorten the construction period


       2. Reduce the cost of gap treatment and wall decoration at the opening


       3, reduce scaffolding, support and related installation costs and handling fees


       4. Reduce the cost of construction waste and on-site cleaning


       5, reduce the cost of auxiliary construction


02 Improve the effect of on-site construction and reduce labor


       1. Ensure a safe construction period (4-6 days/layer)


       2. Improve the construction capacity of non-professionals


       3. Improve the efficiency of auxiliary construction by checking the drawings beforehand.


       4. Accuracy of building landfill location (cables, equipment)


03 Construction quality improvement effect


       1. Maintain high precision and accurate accuracy of the frame with high quality design and precise machining


       2. Improve the construction capacity of non-industry personnel to prevent wall panel bulging and floor sag during frame construction


       3. Maintain the consistency of the frame quality (prevent the site builder from arbitrarily changing)


       4. Prevent the occurrence of flaws and cracks


 


          Economic comparison between aluminum formwork and traditional formwork


      Case study: cost analysis of 30-story tower formwork system, construction area of 1000m2, expansion area of 3200m2


Aluminum alloy template


       Material price: 900-1200 yuan / m2, including a set of templates + 3 sets of support + one floor accessories


       Number of uses: more than 300 times


       Whether to support the use of early demolishing template: must include a template for early dismantling template support technology, three sets of support


       Material specifications: 4mm thick aluminum panel, template thickness 65mm Support: high strength Q235 steel tube support


       Recycling value: 30%


       Decoration fee: the concrete surface is smooth and smooth, the door and window openings, the balcony bay window, the stairs, the wall column beam surface and the node forming rules, the repair amount is very small, which greatly saves the engineering decoration cost.


       Non-generic parts usage times: the number of repeating floors is basically the same according to the structure


       Installation manual (average): 25 yuan / m2


       Installation machinery costs: 0


       Single-story high-rise comparison (30 floors): 51 yuan / m2


       Comparison of two different high-rises: 47 yuan / m2


       Comparison of two identical floors: 47 yuan / m2


       Comparison of three high-rises: 40 yuan / m2


Wood template


       Material price: 150 yuan / m2 (wood template + wood + support + nail) including a set of templates and a set of support


       Number of uses: 6


       Whether to support the use of early demolishing template: must include a template for early dismantling template support technology, three sets of support


       Material specifications: 15mm thick laminated plywood Support: Q235 steel pipe fastener scaffolding


       Recycling value: 0 (abandoned template plus cleaning fee)


       Decoration fee: the amount of concrete surface repair is getting bigger and bigger


       Non-general parts usage: 5-6 times


       Installation manual (average): 25 yuan / m2


       Installation machinery cost: 1 yuan / square meter


       Single-story high-rise comparison (30 floors): 53 yuan / m2


       Comparison of two different high-rises: 53 yuan / m2


       Comparison of three high-rises: 53 yuan / m2


In summary: the aluminum alloy template has obvious advantages over the traditional template, and the aluminum template is widely used. The selection of the aluminum welding wire in the welding process is particularly important. The "one product gold" brand aluminum template welding wire is selected, which is cost-effective and reliable.


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