Construction Technology 3 D39 TA Dr Mohamed Abdel-Wahab Edwin Chadwick Building, Room 1.16 [email protected] www.mohamedabdel-wahab.co.uk Lecture 4 – Offsite production: case studies and general issues
Feb 25, 2016
Construction Technology 3 D39 TA
Dr Mohamed Abdel-WahabEdwin Chadwick Building, Room 1.16
Lecture 4 – Offsite production: case studies and general issues
Quiz
1) What does SIPs stand for?2) Name at least 3 practical considerations
associated with volumetric pods3) What is the 11-step production process for OSBs?
Go to m.socrative.com
Lecture Outline
1. Introduction2. Case studies
3. General issues
(Labour, Transport, cranes, site layout and access)
Is offsite – MMC commonly used in the construction industry?
“We see MMC as a key component to stepping-up performance...but our industry has been very, very slow to respond to that”
The extent to which offsite is being applied is currently unclear!
In the Housing Market Intelligence conference in 2004, Housing Minister Keith Hill
(Construction Manager, 2004)
Does the industry need to increase take-up of Offsite-MMC?
Elements which offer greatest potential for Offsite-MMC – the top100’s view
Residential applications
Case studies
Plan layout of Edinburgh Forte Posthouse showing original and new extension
Courtesy of Yorkon Ltd
Isometric representation of hotel bedroom units
Courtesy of Yorkon Ltd
structural steel hot-rolled columns
anti-corrosive paint finish
Structural frame
Commercial applications
Embankment Place office development, central London
Guidance on the decision making process and practical applications should help increase the take-up of offsite modern methods of construction.
(Pan et al 2007)
While the factory end of off-site production (prefabrication) could be a smooth process, there are many on-site issues to be considered.
What are the general issues associated with the use of offsite production?
Labour and training
1. Do we have enough labour?2. Are they are appropriately skilled and qualified?
www.cskills.org
Transport
Transport
Cranes
Site layout and access
Site organisation
String diagram
Studies show that a productivity of 2 gangs doing identical jobs on the same site at the same time can differ by more than 50%
Source - More for less: a contractor’s guide to improving productivity
Summary
1. Introduction2. Case studies3. Practical issues (Labour, Transport, cranes, site layout and access)
Suggested references
www.we-inter.com/Design-and-Concept-of-Precast-Concrete-Jail-Cells-in-the-USA.aspx
Self Erecting Tower Cranes Demo
Info4education.com