oxford brookes university -...

25
Modern Methods of Construction Oxford Brookes university January 2008

Upload: hoangdan

Post on 22-Jul-2018

226 views

Category:

Documents


0 download

TRANSCRIPT

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Uni

teS

tone

hous

eM

ay 2

004

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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.

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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.

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

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

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

Environmental Benefits: Re-use

• Demolition is straightforward• Materials can be easily recycled• Modules can be reused• Light foundations are relatively simple to remove

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

-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

Mod

ern

Met

hods

of C

onst

ruct

ion

Oxf

ord

Bro

okes

uni

vers

ityJa

nuar

y 2

008

• The Steel Construction Institute• Corus• Unite Modular Solutions• Terrapin• WSP• HTA• Cartwright Pickard• Research Fund for Coal and Steel• University of Surrey• Oxford Brookes University

With thanks to