SYSTEM AND CONTROL
(Strengthening frame structures)
A stable structure is one that is
safe and will not collapse. There
are several ways of making
structures more stable the most
common being the use of;
• Triangulation.
• Cross-bracing.
• Gusset plates.
TRIANGULATION
This is the process of adding
additional member between the
corners of a frame to form a
triangle.
This stabilizes and strengthen
the framed structure since
other shapes can collapse due
to the force acting on them.
CROSS-BRACING
GUSSET PLATE
Unlike triangulation, this is similar but rather
than the crossing member running from
corner to corner, it runs from side to side.
These are small sheets of metals
called plates used at joints of
framed structures to connect
beams to columns. This improves
stability, strength and rigidity.
This is used to strengthen the edges of the
framed structure and prevents it from
wobbling.
TRUSSES
These are structural frameworks
consisting of a combination of beam,
strut and tie that are joined together to
support loads. Trusses are commonly
used for roofs of buildings, bridges,
Trusses are
constructed using
both stee and timber
SPACE FRAMES
These are three dimensional (3D) truss used to span large areas.
This is designed to avoid the use of intermediate columns.
Space frames are typically made from tubular (tube-like)
members which helps make the frame lightweight. They are used
in areas such as airports, cinemas, stadiums, warehouse,
complex roof structures etc.