NSC 27
June 18
BS EN PUBLICATIONS
BS EN ISO 2081:2018
Metallic and other inorganic coatings.
Electroplated coatings of zinc with
supplementary treatments on iron
or steel
Supersedes BS EN ISO 2081:2008
BS EN ISO 4545-1:2018
Metallic materials. Knoop hardness
test. Test method
Supersedes BS EN ISO 4545-1:2005
BS EN ISO 4545-2:2017
Metallic materials. Knoop hardness
test. Verification and calibration of
testing machines
Supersedes BS EN ISO 4545-2:2005
BS EN ISO 4545-3:2017
Metallic materials. Knoop hardness
test. Calibration of reference blocks
Supersedes BS EN ISO 4545-3:2005
BS EN ISO 6507-1:2018
Metallic materials. Vickers hardness
test. Test method
Supersedes BS EN ISO 6507-1:2005
BS EN ISO 6507-2:2018
Metallic materials. Vickers hardness
test. Verification and calibration of
testing machines
Supersedes BS EN ISO 6507-2:2005
BS EN ISO 6507-3:2018
Metallic materials. Vickers hardness
test. Calibration and reference blocks.
Supersedes BS EN ISO 6507-3:2005
BS EN ISO 7345:2018
Thermal performance of buildings
and building components. Physical
quantities and definitions
Supersedes BS EN ISO 7345:1996
BS EN ISO 7500-1:2018
Metallic materials. Calibration and
verification of static uniaxial testing
machines. Tension/compression
testing machines. Calibration and
verification of the force-measuring
system
Supersedes BS EN ISO 7500-1:2015
BS EN ISO 11130:2018
Corrosion of metals and alloys.
Alternate immersion test in salt
solution
Supersedes BS EN ISO 11130:2010
BS EN ISO 26203-1:2018
Metallic materials. Tensile testing
at high strain rates. Elastic-bar-type
systems
Supersedes BS EN ISO 26203-1:2010
CORRIGENDA TO BRITISH
STANDARDS
BS EN 1090-5:2017
Execution of steel structures and
aluminium structures. Technical
requirements for cold-formed
structural aluminium elements and
cold-formed structures for roof,
ceiling, floor and wall applications.
CORRIGENDUM, March 2018
BRITISH STANDARDS REVIEWED
AND CONFIRMED
BS EN ISO 3059:2012
Non-destructive testing. Penetrant
testing and magnetic particle testing.
Viewing conditions
BRITISH STANDARDS WITHDRAWN
BS EN ISO 2081:2008
Metallic and other inorganic coatings.
Electroplated coatings of zinc with
supplementary treatments on iron
or steel
Superseded by BS EN ISO 2081:2018
BS EN ISO 4545-1:2005
Metallic materials. Knoop hardness
test. Test method
Superseded by BS EN ISO 4545-1:2018
BS EN ISO 4545-2:2005
Metallic materials. Knoop hardness
test. Verification and calibration of
testing machines
Superseded by BS EN ISO 4545-2:2017
BS EN ISO 4545-3:2005
Metallic materials. Knoop hardness
test. Calibration of reference blocks.
Superseded by BS EN ISO 4545-3:2017
BS EN ISO 6507-1:2005
Metallic materials. Vickers hardness
test. Test method
Superseded by BS EN ISO 6507-1:2018
BS EN ISO 6507-2:2005
Metallic materials. Vickers hardness
test. Verification and calibration of
testing machines
Superseded by BS EN ISO 6507-2:2018
BS EN ISO 6507-3:2005
Metallic materials. Vickers hardness
test. Calibration of reference blocks
Superseded by BS EN ISO 6507-3:2018
BS EN ISO 7345:1996
Thermal insulation. Physical quantities
and definitions
Superseded by BS EN ISO 7345:2018
BS EN ISO 7500-1:2015
Metallic materials. Calibration and
verification of static uniaxial testing
machines. Tension/compression
testing machines. Calibration and
verification of the force-measuring
system
Superseded by BS EN ISO 7500-1:2018
BS EN ISO 11130:2010
Corrosion of metals and alloys.
Alternate immersion test in salt
solution
Superseded by BS EN ISO 11130:2018
BRITISH STANDARDS CONFIRMED
BS EN ISO 26203-1:2010
Metallic materials. Tensile testing
at high strain rates. Elastic-bar-type
systems
Superseded by BS EN ISO 26203-1:2018
New and revised codes & standards
From BSI Updates May 2018
Codes & Standards
Reprinted from Volume 5 No. 1
February1968
As the inclined planes of cables are
attached to the outer decks only, the
middle deck will be connected to the
outer decks through the 16-ft space
between them, with shallow struts at
approximately 36ft on centres.
The bridge as envisioned solves
two problems: extreme width (650
ft between abutments), and a 65 ft
clearance underneath for almost the
entire width. This maximum clearance
is being achieved by utilising the
system of cables incorporated which
does not require stiffening trusses
and permits the use of an extremely
thin deck only 4 ft deep: this compares
with 15ft in the case of a conventional
bridge and 8 ft for a suspension bridge
requiring stiffening trusses.
Many recent technological advances
are embodied in the design. The
basket suspension system is extremely
rigid in all directions. An unusual
feature is the concave cables which
will be anchored to the ground. They
pull down on the convex cables and
provide rigidity to the bridge in all
directions as well as stabilising it
against vibration.
There have been very few innovations
in structural systems of bridges in the
last four decades. Any improvements
have been confined to site construction
or in variations of conventional
structural systems. Of all the schemes
studied and developed for this
particular project, and there have been
many including horizontal girders,
arches, steel frames, shells and cable
suspensions with concrete, prestressed
concrete and structural steelwork, the
one submitted has come nearest to
satisfying the required criteria. Most
others because of the significant depth
of structural members did not offset
the desired clearance under the bridge
or clear sight view from the bridge.
The only possible alternative design,
other than cable suspension, that
might satisfy the two requirements
would be a thin concrete shell above
the bridge from which the decks would
be supported by vertical hangers. The
shell would be structurally unique and
aesthetically exciting but would be
substantially more expensive than the
design submitted.
The structural system for the bridge
as described consists of components
that have been widely applied in
construction in recent years. An
overriding consideration is that this
bridge would employ one third of
the weight of steelwork that would
be required for the same span using
conventional construction.