BS 5975-1:2024 - Book - Page 58
BS 5975‑1:2024
BRITISH STANDARD
12.9.2
Any alterations to the temporary works proposed by the site team should be referred to the PC’s TWC
or TWC, as appropriate, who should contact the TWD for incorporation of the change into the design.
12.9.3
Where the designer considers that the alteration is significant, the alteration should be referred to the
design checker. Any revised design or design check documentation should be recertified when
considered appropriate by the PC’s TWC or TWC as appropriate.
12.10
Standard solutions
12.10.1
An organization might publish technical data in the form of arrangements of temporary works of
their equipment based on certain conditions of use; these arrangements, known as standard
solutions and often presented in a tabular or readily assimilated format, should relate to the
organization’s products only. The organization should carry out the structural design calculations
and verify the arrangements with design check certificates.
NOTE Provided the equipment is erected, used and operated within the limitations placed in the standard solution,
a TWC does not need to further verify the design calculations of the standard solution (see design checks at 12.7
and Table 2).
12.10.2
For each standard solution the organization should identify the limitations of its use and of the
organization’s design responsibility.
NOTE For example, a standard solution for a proprietary soffit system might not include design of the foundations
or the method by which top restraint is obtained for lateral stability. Equally, it might not include design of any face
contact material, although the standard solution might assume a certain grade of material is used.
12.10.3
Users of a standard solution should verify that:
a)
the solution assumes that the equipment specified is used, without substitutions;
b)
the concept is acceptable for the location;
c)
the conditions of use and limitations on use are within the specified limits;
NOTE For trench support systems this includes verification that the ground conditions (including groundwater
level) are as specified for the equipment.
d)
the assembly is erected to the expected tolerances;
e)
the solution is within the experience of the workforce and its supervision;
f)
the equipment is not damaged and does not show signs of excessive wear;
g)
the method of loading the system is as stated in the standard solution;
h)
the ancillary items, or additional temporary works (such as foundations), by others have been
designed and supplied as required; and
i)
the arrangement, prior to use, has been separately checked for conformity to the guidance
provided by the supplier or organization responsible for the standard solution.
13 Site considerations
13.1 Coordination, supervision and checking of work on site
13.1.1
Work on site should be carefully directed, supervised, inspected and checked, so that:
a)
the temporary works is constructed safely in accordance with the design and specified materials
and equipment; and
b)
only when all checks have proved satisfactory is the works loaded, used, maintained, unloaded
and then dismantled in accordance with an implementation plan.
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