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Case Studies: |
Ambient Test of Reconstructed Old Bridge in Mostar
The measurements
and analysis
presented
here are
performed by
Associate Prof.
Dr Lidija
Krstevska and
Prof. Dr
Ljubomir Taskov,
Institute of
Earthquake
Engineering and
Engineering
Seismology (IZIIS),
University "Ss.
Cyril and
Methodius",
Skopje, Republic
of Macedonia in
April 2007,
within the
scientific
cooperation
between IZIIS
and the Civil
Engineering
Faculty,
University of
Mostar, Bosnia
and Herzegovina.
The
stone-masonry
Old Bridge in
Mostar is a
symbol of the
town and it is
well known in
the world
database of
historical
heritage. The
original Old
Bridge was built
during 16th
century. In 1993
the bridge was
completely
demolished by an
explosion as
shown below, and
in 2003
completely
reconstructed
with the same
appearance as
the original
one.
The bridge is a
stone-masonry
arch structure
13.5m in height
and 29m in
length, as shown
below.
The Measurements
For measuring
the ambiental
vibrations three
Ranger
seismometers,
Kinemetrics
product, were
used.
Measurements
were performed
in transversal,
longitudinal and
vertical
direction, in 22
points along the
bridge. 11
points in one
test setup on
one side and 11
in another test
setup on the
other as shown
below.
The management
of measurements,
geometry and DOF
definitions was
conducted by the
ARTeMIS Testor.
The Analysis
The Operational
Modal Analysis
was performed
using ARTeMIS
Extractor 2008
and below the
most important
modes can be
viewed as AVI
animations.
Remember to set
the Movie Player
to "Repeat
Forever".
AVI movies
of some of the
identified
modes:
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