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in the architectural design and can discuss
advantages and disadvantages of aspects of
the design concept (form following function).
What is the level of BIM
expertise in SA?
We have a high level of expertise placed in
a small number of competent people, but
these are too few to drive our entire industry.
Part of the difficulty is because these
individuals are so valuable within organisa-
tions, they become very project or company
focused and contribute less to driving the
BIM industry as a whole.
How is BIM measured?
Arup has developed a BIM maturity measure-
ment application based on work by the Penn
State University that anyone can use. It uses
a quick and transparent Excel spreadsheet to
measure both maturity and progress within a
project and in comparison to other projects.
It can be completed by project managers
or discipline leads with the input of a BIM
manager or the BIM lead on the project.
This allows each project to set clear
goals and measure its progress at each stage.
These measurements assess against Arup’s
own Phase 1 BIM Targets for all projects and
against external benchmarks such as the UK
Government’s BIM Level 2 measure.
Results can be amalgamated by group,
discipline and region and consists of a series
of multiple choice questions asked about the
project’s information management process
and each disciplines’ information modelling
practices. The weighted ratings are then
measured against criteria aligned with a
maturity rating.
Can the system be used when
renovating an existing building?
BIM can be used effectively on existing build-
ings. Existing buildings, particularly older
ones, often have very little data to start with.
We are now able to use BIM with 3D point
What are the advantages of
the BIM system?
• Substantial construction,
maintenance, energy saving and
lifecycle ownership cost reductions.
• Pre-build co-ordination and
associated cost and time savings and
accuracies down the line.
• Reduction of repetitive work by all
professional designers involved.
• Access to live and pertinent
information by all at any time for
better early decision making.
• Better integrated design across
diciplines.
• Better understanding of the client’s
building requirements.
• Clearer communication between
design team and client, especially in
terms of the consequences of design
changes.
• Live bills of quantity and cost
variation implications, if so required.
• Better procurement management
and future purchase agreements
across single and multiple projects.
• And many more – each project
demonstrates more advantages to
both designers and users.
cloud image scanning or photogrammetry to
create a model based on the existing struc-
ture and services.
These projects often turn out better
than new projects as existing sizes, materials
and innate performance defects are usually
apparent and more tailored solutions can be
found to resolve these historic client issues.
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The 15 000 ton bunker comprises of a total 491 precast panels.
The project saw an average of 3,2 panels placed per day,
peaking at 22 panels on the sloping and vertical wall units.
This process was completed without the use of normal scaffolding
for access. Rope access teams were deployed to install and complete
the majority of the work. This method, in addition to minimising risk
by cutting time spent constructing and working from scaffolding, also
reduced the installation programme by a third.
The precast panels were stitched together and a total of 1 010 m
3
of concrete was used for this.
The vertical walls were stitched by means of an in-house designed
self-compacting concrete. This self-compacting concrete was used to
reduce the safety risk of working with heavy equipment at heights.
Stefanutti Stocks Civils Completed a 4 000 and
a 15 000 ton precast coal bunker at Kinross,
Mpumalanga for Sandvik Mining.
PRECAST COAL BUNKER
COMPLETED
Project safety stats
Site team size:
315
Total Hours Completed:
915 225
LTIFR 12 month rolling:
0.15
Injuries over last 12 month:
0.00
RCR 12 month rolling:
0.60
CONSTRUCTION WORLD
SEPTEMBER
2016
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