oxford brookes university -...
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Mod
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Uni
teS
tone
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ay 2
004
Mod
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Generic Advantages of MMC
• Rapid speed of construction• Reliable quality control • Reduced reliance on traditional skills• Competitive economics• High quality design and detailing• Excellent environmental credentials.
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Selected Trends in MMC
• Use of modules and panels to give hybrid solutions• Use of long span floors to give adaptable internal
space• Building heights of up to 10 stories• Efficient light steel structures that allow for a wide
range of geometries and architectural treatments• New methods of accommodating services.• Light foundation systems
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General Environmental Benefits
• Exceptionally efficient use of material• Minimal wastage• Long service life• High recycling rates• Reliable thermal and acoustic performance• New foundation systems reduce ground
contamination
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Environmental Benefits: Building Design
• Opportunities for detailed building physics appraisal and testing
• Efficient pre-engineered service systems easily incorporated
• High correlation between theoretical and actual thermal and acoustic performance
• Varying levels of acoustic and thermal insulation possible, and high performance standards easily achieved.
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Environmental Benefits: Construction
• Site installation is rapid and quiet• Units can be delivered sequentially ‘just in time’• Total number of deliveries to site is much reduced• Site waste is reduced by approximately 30%• Relatively light foundation systems can usually be
used
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Environmental Benefits: In Use
• Good thermal insulation reduces energy needs and improves occupant comfort.
• Good acoustic insulation avoids excessive noise transfer between dwelling or between dwellings and communal areas.
• Modern modular buildings are easily adapted and reconfigured
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Environmental Benefits: Re-use
• Demolition is straightforward• Materials can be easily recycled• Modules can be reused• Light foundations are relatively simple to remove
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-5% -10%Base
30% 30%
Site-intensiveconstruction
Small OSMproject
Large OSMproject
Time-relatedsaving
Materials costin site-intensiveconstruction
5%Wasteand re-work
35%
15%15%
15%15%
Transport andspecialist equipment
Site personnelcosts
Site overheadcosts(preliminaries)
25%
35%
100%
Construction cost:(before preliminaries)
Total cost:
Total cost:(less time savings)
85%
100%
100%
10%
10%
95%
105%
100%
30%
10%
5%
Factory overheadcost (inc. capitalinvestment in manufacture)
Transport and installationSite overhead costs
85%
90%
80%
30%
20%Personnel costs in factoryproduction and site work
Materials andbought incomponents costin factoryproduction