Authors :
Rajkapoor Mandraia; Dr. Arafat Rehman
Volume/Issue :
Volume 7 - 2022, Issue 10 - October
Google Scholar :
https://bit.ly/3IIfn9N
Scribd :
https://bit.ly/3Nh6SGD
DOI :
https://doi.org/10.5281/zenodo.7263760
Abstract :
Various aspects relevant to precast segmental
bridges such as vibration characteristics, Behaviour of
pre-stressing tendons, methods of improving ductility
are addressed towards estimating dynamic response and
resisting seismic forces. Findings of several
International codes and recent worldwide research are
discussed. The discussion and conclusions provided
herein will be useful in designing precast segmentally
constructed bridges against high seismic forces with
greater reliability. The bridge is designed to resist
seismic forces in which certain parts of the structure
are allowed to yield (ductility) to dissipate energy. In the
precast segmental construction, various segments
(transverse slices) normal to the longitudinal axis of the
bridge are joined together with or without use of
epoxy. The segment-to-segment joints can undergo large
displacement and rotation of repeated opening and
closure under reversed cyclic loading induced in
seismic events. Therefore, designing the precast
segmental bridge resisting high seismic forces is more
challenging; as it offers a more complex Behaviour and
the ductility demand imposed by substructure may be
more than conventional bridges.
Keywords :
Safety in construction, Dynamic analysis, Damping of structure, Ductile Behaviour, Bhopal REGION.
Various aspects relevant to precast segmental
bridges such as vibration characteristics, Behaviour of
pre-stressing tendons, methods of improving ductility
are addressed towards estimating dynamic response and
resisting seismic forces. Findings of several
International codes and recent worldwide research are
discussed. The discussion and conclusions provided
herein will be useful in designing precast segmentally
constructed bridges against high seismic forces with
greater reliability. The bridge is designed to resist
seismic forces in which certain parts of the structure
are allowed to yield (ductility) to dissipate energy. In the
precast segmental construction, various segments
(transverse slices) normal to the longitudinal axis of the
bridge are joined together with or without use of
epoxy. The segment-to-segment joints can undergo large
displacement and rotation of repeated opening and
closure under reversed cyclic loading induced in
seismic events. Therefore, designing the precast
segmental bridge resisting high seismic forces is more
challenging; as it offers a more complex Behaviour and
the ductility demand imposed by substructure may be
more than conventional bridges.
Keywords :
Safety in construction, Dynamic analysis, Damping of structure, Ductile Behaviour, Bhopal REGION.
