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The Merits of Structural Steelwork
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What does the client want? |
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Value for money |
Flexibility |
Speed |
Safety |
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An economic construction material |
In design |
Pre-engineered
solutions |
During design and fabrication |
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Continuous development in technology |
During
Construction |
Short
construction period |
During construction |
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Built in a short construction period |
In use |
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Savings throughout the project |
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| Quality
and Reliability |
Professional Approach |
Sustainability |
Prestige |
| During
the design process |
Competent
and responsible contractors |
At the
construction stage |
Aesthetically
pleasing |
| During
construction |
Advice
and support |
After
completion |
A structure
that reflects the clients ambitions |
| Relating
to cost |
Integrated
electronic transfer of information |
Environmentally
friendly |
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| After
occupation |
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What
the Client wants?
How
steel helps to achieve this:
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| Value for Money |
AN ECONOMIC CONSTRUCTION
MATERIAL
- Increased productivity in steel
manufacture and design, fabrication and erection have made steel
a low cost way of building.
- New low cost approaches to fire
and corrosion protection are available.
- Costs have fallen in real terms
CONTINUOUS DEVELOPMENT IN TECHNOLOGY
- By investment in IT and CAD/CAM
technology for engineering and production
A SHORT CONSTRUCTION PERIOD
- Earlier possession of the building
for use or rent.
- Lower financing costs
- Better site utilisation
- Earlier access for following trades
SAVINGS THROUGHOUT THE WHOLE PROJECT
- Early involvement of the steelwork
contractor in the design process
- Large unsupported spans
- Smaller site footprint
- A durable form of construction which
meets the building life requirements
- Slender columns resulting in maximising
floor area.
- An excellent strength to weight
ratio so lower foundation costs
- Offsite fabrication and lower site
costs during construction
- Prefabricated therefore greater
independence from the weather
- Low cost and efficient approaches
to fire protection
- Easy integration of services
- Great flexibility in accommodating
changes to the building
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| Flexibility |
IN DESIGN
- IT and software.
- Steel's excellent strength to weight
ratio creates an attractive and economic use of space when beams
and columns have small profile areas.
- New rolled and prefabricated section
shapes.
- Economic methods for shaping and
curving.
- Standardised solutions for floor
systems and connections.
- Opportunities to integrate large
openings, for doors and windows
- Fire engineering.
DURING CONSTRUCTION
- Complementary structural components
can easily be accommodated curtain walling readily and efficiently
connected to the structure, and other modularised elements such
as toilet pods, dry-casing, M&E items easily fitted.
- Easy adaptation - during the construction
period the client may wish to alter installations and this can
readily and rapidly be achieved.
- Steelwork connections, particularly
bolted ones, can easily be released or re-made in whatever form
necessary.
IN USE
- The client may need to extend, to
change the use of the building, to absorb changes in loading requirements,
and to incorporate new installations.
- Should an increase in loading requirements
occur, then the structural elements can easily be individually
strengthened, or additional members introduced or altered to suit.
- Steel's relative lightness in weight
allows adaptation in the future to be easily accomplished.
- New connections can easily be introduced
by bolting or welding enabling alterations for services or changes
of use.
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| Speed |
PRE-ENGINEERED SOLUTIONS
- The construction preparatory phase
enables the structure to be planned and connections to be selected
for speed of erection.
- Just-in-Time manufacturing techniques.
- The steel frame is designed and
manufactured from computer models directly linked to the CNC machines
thus ensuring high dimensional accuracy and speed of erection.
- Quick drying coatings technologies.
SHORT CONSTRUCTION PERIOD
- Economical foundations - steel's
excellent strength to weight qualities result in small foundations
which then take minimum time to construct.
- Off-site manufactured elements -
ready for immediate erection upon arrival on site, with no subsequent
delays. This means following trades can carry out their work in
parallel.
- New erection techniques, eg use
of mobile working platforms.
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| Safety |
DURING DESIGN AND FABRICATION
- Extensive research and development
by the steel construction industry into accident prevention.
- Wide ranging Health and Safety guidance
documents and procedures
DURING CONSTRUCTION
- Off-site manufacture means less
site activity.
- Regulatory monitoring of machinery.
- Risk assessments.
- Use of mobile elevating working
platforms.
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| Quality and Reliability |
DURING THE DESIGN PROCESS
- World Class companies using tried
and tested solutions.
- Steel is a homogenous material and
is subject to documented quality control procedures during manufacture
and rolling. The Client can be assured of obtaining reliable and
constant quality.
- A wide range of section shapes and
sizes in a range of qualities offers the most efficient and economic
solution for the design requirements.
- Successful use of IT.
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DURING CONSTRUCTION
- A qualified and trained workforce
- in the fabrication shops staff are permanently employed, often
for the whole of their working lives, and on site erection companies
maintain a permanently employed labour force.
- Independent Certification of in-house
quality systems gives ongoing assurance of procedures and products.
- Improved coatings technologies.
- High quality surface finishes available
for pre-site approval.
- Bolted and welded connections are
generally exposed and therefore are simple to check for quality
and safety.
RELATING TO COSTS
- Costs are predictable, which helps
with a meaningful calculation of the investment and risk involved
in the project.
AFTER OCCUPATION
- The steel frame is visible for ongoing
inspection.
- The plastic behaviour of steel provides
additional security in extreme loading situations, such as explosion,
impact, terrorist attack and earthquake.
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| Professional Approach |
COMPETENT AND RESPONSIBLE
CONTRACTORS
- The steel construction industry
can give assistance to the client and his professional team with
technical and budgetary advice at the planning stage of the project.
- Industry standard details in design
and connections offer economy in construction.
- Full design can be carried out where
required by the steelwork contractor.
- Greater co-operation within the
project team through partnering and the consequent improved payment
profile result in benefits for all.
ADVICE AND SUPPORT
- The industry's advisory organisations
can help the client and his team on all aspects of the design,
costing, procurement, fabrication and erection process.
- The Register of Qualified Steelwork
Contractors enables clients to select independently audited companies
appropriate to the project.
- The National Structural Steelwork
Specification can be relied upon to provide industry accepted
standards.
- Continual R&D in areas such
as fire design, seismic resistance, health and safety, etc provide
the client with safe structures and a dynamic industry.
INTEGRATED ELECTRONIC TRANSFER OF INFORMATION
- The industry uses software for all
aspects of its processes and engineering modelling tools enable
the client and his professional team to interface directly with
the steelwork contractor.
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| Sustainability |
AT THE CONSTRUCTION STAGE
- Delivery of steelwork is relatively
straightforward - requiring little space, time or inconvenience.
The hours of delivery can be selected in order to reduce public
nuisance.
- Because steelwork comprises prefabricated
elements, there is as a result less site disruption with adjoining
properties.
- Construction equipment normally
used to erect steelwork is cranes and mobile platforms. These
by their nature require little permanent or temporary space to
operate.
- Noise when manufacturing, delivering
or erecting steelwork is not a major problem.
- The speed of steelwork erection
means inconvenience caused is reduced to a minimum period.
AFTER COMPLETION
- Steel can be easily maintained so
that colour and appearance can always be made to suit a constant
or changing environment.
Coatings developed through new technology last longer.
ENVIRONMENTALLY FRIENDLY
- Steel is basically a clean, user-friendly
material - no dust, no spillage, little waste etc - and consequently
no equipment employed to counteract such problems.
- Steel can be reused, relocated or
recycled once its use has been overtaken by events. Use is therefore
responsible in environmental terms.
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| Prestige |
AESTHETICALLY PLEASING
Steel by its very nature has:
- Clean lines
- Slenderness
- Large spanning
- Architectural possibilities
- It appeals to the client and his
designer in terms of attractiveness as well as economy.
- Colour, through paint, can easily
and economically transform a building to satisfy the designer's
options.
A STRUCTURE THAT REFLECTS THE CLIENT'S
AMBITIONS
- Steel has exhibited consistently
great architectural beauty - suspension bridges, tall towers and
high buildings, for example, the world over are magnets for tourism.
Many steel structures worldwide are viewed as amongst the greatest
achievements of mankind.
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