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SUSPENSION BRIDGE APPARATUS : PSAW-802SM
Cables are
frequently used to support loads over large spans such as cable stayed for
suspension bridges, cable car systems and stadium roof. They are used
extensively for permanent guys on structures such as microwave towers and
derricks. They are also used for temporary guys during erection. The only force
in a cable is direct tension. They are too flexible to carry any moment.
A cable is used
to carry concentrated loads, uniformly distributed load along its length and
uniformly distributed load along the horizontal span. It takes the shape of a
polygon under concentrated loads, a centenary under uniform load along its
length (such as its own weight), and a parabola under uniform load along the
horizontal span.
TECHNICAL SPECIFICATION:
· Apparatus Consists of two mild steel cables 0.5cm diameter in cross section and 150cm long, pinned to two supports 90cm apart situated symmetrically.
·
One
of the ends can be converted to a roller by applying a known load at the end
with the help of suspended pulley system.
·
Vertical
loads can be applied at various points along the span of the beam.
·
A
dial gauge with 25mm travel (with a magnetic base) is to be supplied with the
apparatus complete with a supporting stand and a set of weights.
EXPERIMENT:
· Study the Extension of each spring Balance Left & Right Both.
·
Study
of the effect of a point load
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