Stage 03: The application of BIM technology in residential house construction (Masterclass)
Date: 2014-04-23, Track: Session 1
Managing Director – Bisco
New Zealand construction and challenges of new technology and increasing productivity. 1700’s construction was prefab. Then English construction methods of stone and brick. Timber a major part of construction and adapting.
Tectonic plates colliding created NZ
Timber frame is the standard method.
Prefab in factories with added structural steel.
Masonry as a cladding.
NZ do not have local authorities or housing associations.
The typical house builder is small. Lack internal processes, low adoption of IT but represent more potential gains than larger companies.
10% of GDP from construction means any gain raises the GDP. This is of great interest to the government. 20% increase in productivity by 2020
Lower productivity = lower wages and profits. Expensive and less innovation.
ICT in manufacturer had more gains than construction , there is always a lag factor at the beginning.
Manufacturing vs construction
Standardisation vs houses are generally different.
Long production runs and long term supply. Vs one off
Long term relationships with investment in communication vs transient
Longer life projects seem more attractive to adopters.
Often builder is not known at the design stage
Builders deal with a range of designers
Often builders regularly use the same trades
Trades deal with multiple
Very few make investment in communication
Industry is still fundamentally appear based.
Different results and different methods result in different outcomes. Content of communication has not changed much, just sending PDFs instead of paper.
Windows are not made until holes are made due to lack of trust in information.
Construction is a complex process, try to remove as much as possible.
Getting the systems in place is hard, the benefit comes once you start using it and then leveraging it.
Challenges – multiple data sources, IP, varying construction methods, lack of understanding of true construction costs. Talk with builders on how they cost.
Main communication is still PDF, models do not contain everything.
2d provides a process break so allows users to resolve specific details. People assume the model is right and it reality it might not be.
Making something manual increases the risk. Hard to audit.
Two objects existing in space, where they intersect there is a cost impact and a work impact. Not recognised in many systems.
Systems – IFC is the only game in town