4th WCSET-2015 at Japan
Civil Engineering:
Title:
Investigation on the behaviour of Pre-stressed concrete
poles of different lengths
Authors:
Gurunaathan K., G. S. Thirugnanam
Abstract: Load
testing is one of the reliable tests to be carried out
on any pre-stressed concrete structural element. Unlike
other concrete elements, the internal stresses are
introduced by pre-stressing methods and the
load carrying capacity is mainly dependent on
pre-stressing forces applied. It is the method of
applying the loads by gradually increasing and measuring
the deflection for the corresponding loads. It helps
identify the maximum load that it can carry and
withstand without much deflection. In this paper, the
strengths of pre-stressed concrete poles of different
lengths made of M42 grade concrete have been studied by
conducting the load-deflection test. The load-deflection
test on 7.5metre and 8metre long pre-stressed concrete
poles which are widely used as line supports for low
tension supply in the distribution wings of electricity
boards, have been carried out. Only by conducting the
load test, it is possible to say whether the poles
manufactured can withstand the load for which they have
been designed.
Keywords: Pre-stressed
concrete pole, Load test, Transverse strength,
Dynamometer, Deflection
Pages:
196-200