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Construction
The erection of structural steelwork consists of the assembly of steel components into a frame on site. The
processes involve lifting and placing components into position, then connecting them together. Generally
this is achieved through bolting but sometimes site welding is used. The assembled frame needs to
be aligned before bolting up is completed, and the structure handed over to the principal contractor.
Often the ability to complete these processes safely, quickly and economically is influenced significantly
by early decisions made during design long before erection commences. It is important that designers
clearly understand the impact that their decisions can have; "buildability" is a valid design objective. In
this context, this article draws on the wider advice given in the SCI publication P178 Design for
Construction.
Good site co-ordination will facilitate a smooth running project. Adequate access is required by the
steelwork contractor for steel transportation, unloading and erection, both on the site as well as on
surrounding or adjacent access roads. The provision of well prepared level ground that is able to take the
requisite wheel loads is essential. Use of the BCSA Safe Site Handover Certificate will assist in meeting
these requirements, thus reducing the risk of accidents and delays due to poor and unsafe site conditions.
Trinity Square, Gateshead
(Image courtesy of William Hare Ltd.)
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1 Planning for Construction
o 1.1 Construction sequence
o 1.2 Design factors
o 1.3 Site practice
2 Steel erection
o 2.1 Erection techniques
2.1.1 Mobile cranes
2.1.2 Tower cranes
o 2.2 Typical erection rates
o 2.3 Lining, levelling and plumbing
o 2.4 Tolerances
o 2.5 Interfaces
2.5.1 Structural interfaces
2.5.2 Non-structural interfaces
o 2.6 Site bolting
o 2.7 Site welding
o 2.8 Temporary works
o 2.9 Erection handover
3 Installation of metal decking
o 3.1 Edge protection
o 3.2 Methods of fall arrest
4 Quality management
5 Health & safety
6 References
7 Resources
8 Further reading
9 See also
[top]Planning for Construction
To achieve the client’s aspirations on cost, programme and quality, planning for construction should start
at the very beginning of the design process. Such planning should consider the construction sequence, the
design factors that affect buildability, and site practice in terms of typical erection plant.
[top]Construction sequence

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Construction The erection of structural steelwork consists of the assembly of steel components into a frame on site. The processes involve lifting and placing components into position, then connecting them together. Generally this is achieved through bolting but sometimes site welding is used. The assembled frame needs to be aligned before bolting up is completed, and the structure handed over to the principal contractor. Often the ability to complete these processes safely, quickly and economically is influenced significantly by early decisions made during design long before erection commences. It is important that designers clearly understand the impact that their decisions can have; "buildability" is a valid design objective. In this context, this article draws on the wider advice given in the SCI publication P178 Design for Construction. Good site co-ordination will facilitate a smooth running project. Adequate access is required by the steelwork contractor for steel transportation, unloading and erection, both on the site as well as on surrounding or adjacent access roads. The provision of well prepared level ground that is able to take the requisite wheel loads is essential. Use of the BCSA Safe Site Handover Certificate will assist in meeting these requirements, thus reducing the risk of accidents and delays due to poor and unsafe site conditions. Trinity Square, Gateshead (Image courtesy of William Hare Ltd.) Contents  [hide] 1 Planning for Cons ...
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