BS 5975 2019 Extract - Flipbook - Page 8
BS 5975:2019
BRITISH STANDARD
Subsequent to the revision of BS EN 12812, this British Standard was updated in 2011, to
BS 5975:2008+A1:2011, and the principal changes introduced by that amendment were as follows.
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The term temporary works co-ordinator (TWC) was adopted to reflect the need for procedural
controls of all temporary works and to recognize that the majority of contractors already control
temporary works in this manner.
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Information on the wind loading on falsework and attached formwork, together with
the effects of shielding of falsework members in unclad structures, in accordance with
BS EN 1991-1-4:2005+A1 and the UK National Annex (NA) was retained.
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The section for the design of falsework was substantially rewritten, in BS 5975:2008+A1:2011,
to bring it up-to-date with current practice and materials. It defines the conditions for top
restrained and free standing falsework and the dependency of the former on the stability of the
permanent works and plate action of the formwork.
Although BS EN 1991-1-4:2005+A1:2010 is widely applicable, its application in accordance with
its National Annex (NA to BS EN 1991-1-4:2005+A1:2010) restricts its use to the UK. For other
locations covered by BS EN 1991-1-4, users can refer to the relevant National Annex. For locations
outside of those covered by BS EN 1991-1-4, local design codes can be used to calculate the peak
velocity pressure.
Users of this British Standard are reminded that it might be necessary for them to appraise third
parties, with whom they are not in contractual relations, of certain provisions in this code of practice.
Use of this document
As a code of practice, this British Standard takes the form of guidance and recommendations. It
should not be quoted as if it were a specification and particular care should be taken to ensure that
claims of compliance are not misleading.
Any user claiming compliance with this British Standard is expected to be able to justify any course of
action that deviates from its recommendations.
It has been assumed in the preparation of this British Standard that the execution of its provisions
will be entrusted to appropriately qualified and experienced people, for whose use it has
been produced.
Presentational conventions
The provisions of this standard are presented in roman (i.e. upright) type. Its recommendations are
expressed in sentences in which the principal auxiliary verb is
