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Steel beams are viable and
economical alternative to
concrete girders in many large
infrastructural projects. The
savings are realised from the
high strength of steel beams
relative to its weight, and the
fact that each individual
members can be pre-engineered to
exact tolerances and transported
from the factory, ready for
immediate site erection.
As a result, project time can be
considerably shortened and it is
for this reason built-up steel
beams is increasingly being used
for Bridges, Multi-story
Buildings and Huge
Infrastructural Construction
Projects.
Structural designers can select
the most suitable profile and
grade of steel to suit the
specific load characteristics.
Various grades of beams are
available from Sanki, namely -
JIS SS41-50, SMA 41-50, ASTM
A36, A572, Gr. 50, A588 Gr. A
and others.
Firstly, the beam flanges and
web sections are profile cut by
Sanki's CNC Profile Cutting
Machine. The flange and web
sections are then pre-assembled
by accurately aligning the
flange and web sections then
tacking them together using
Sanki's Beam Assembly Machine.
This ensures that the flange and
web sections are exactly in-line
prior to final submerged arc
welding in the Automatic Beam
Welding and Straightening
Machine.
The flange to web welding must
be on both sides, and welding
thickness depending on the
desired load characteristics.
The flange sections are
automatically and simultaneously
straightened immediately
following the welding process,
thus ensuring the beams are
maintained to exact tolerances.
Subsequent to welding, the beams
can be drilled and cut to length
in accordance with the
designer's specifications.
Various beam profiles can be
produced, namely- Built-up,
Castellated or Box Beams
depending on the specific load
and application requirements.
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