Where would you look for a needle beam?
This has nothing to do with needles and nothing to
do with light. A needle beam is a term used by builders and architects to
describe the supports used when the foundations of a wall or a column need
attention.
If a wall needs underpinning to enable the
foundations to be strengthened, steel needle beamsare inserted through slots
cut into the wall a foot or so from the bottom. The ends of the beams are
supported by screw jacks which can be moved along the beams according to the
extent of the foundation area needing attention. Once work has been done and
the foundations have been restored, the needle beams are removed and the holes
in the wall filled.
When a needle beam is so called because it is
“Threaded” through the wall it has to support.
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