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When bridge construction work is implemented in an
urban area, the neighborhood and road users strongly
request the shortening of its construction period and
alleviation of the traffic congestion caused by lane control
during the period. Normally, safety in the construction
work is the top priority, requiring secured working
areas by a lane control or traffic closure. It has become
more important, however, to shorten the period of lane
control or road closures as much as possible in order to
meet the needs and requests.This report presents several
cases of bridge building and replacement work that
responded to such community requirements, and details
the applied construction technologies.
1) Quick replacement of a bridge implemented within
a five-day road closure.
2) Lane expansion of a truss girder bridge remaining
in service.
3) Erection of a new overpass-bridge above an underpass
in service and its vicinity. |
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