Page 38 - World Of Nurol Magazine-27

the main span distance. With 1.550 meters of steel slabs and anchorage rooms were bridge towers are the largest caisson
of middle span, Osmangazi Bridge ranks equipped with a dehumidifying system that structures of the world constructed until
4th among the largest bridges of the world. supplies dry air to protect them against today. The caisson foundations that have
Suspension Bridge towers are at a height of corrosion. Our bridge has the feature of dimensions of 67x54x15 meters were
252 meters from the sea level and are only being the first SUSPENSION BRIDGE constructed in two different locations,
12 meters shorter than the Safir building where all of its major components were namely in dry and wet docks, in two different
in Istanbul. In order to decrease the steel implemented with a dehumidifying system stages in 12 months, floated to their places
tower vibrations during the construction as early as the design phase. and were sunk to the sea bottom reinforced
stage of the bridge and in its service life, two with driven piles on 15 March 2014 and 26
active mass dampers (AMD) are used at each Would you please mention the construction March 2014. Base area of the caissons is
tower. stages of the bridge in sequence? Basic 3650 square meters and is about the size of
structures, deck slabs, towers, etc. a football filed at minimum dimensions; the
The Suspension Bridge was designed a height of 15 meters corresponds roughly to
monumental structure with a service life Suspension Bridge construction period the height of a 5-floor apartment building.
of 100 years in accordance with European was determined as 37 months, appropriate
Technical Specifications. In order to ensure construction techniques were used in The bridge was known to be the second
that the bridge is kept in its best condition accordance with this and its construction largest bridge of the world. Then it was
for a longer period of time, sensors were was completed in a much shorter time than announced to the fourth one. Why was
placed at various points on the bridge similar suspension bridges in the world. As that?
to detect temperature, tension, motion the service life of the bridge was designed
and similar events and Structural Health as 100 years, the concrete structures were As a result of the comprehensive soil
Monitoring System (SHMS) was installed, made accordingly. For this reason, necessary investigations made by Fugro on behalf
which records the collected data and makes chlorine impermeability limits and necessary of Japan IHIITOCHU consortium, soil maps
them available for monitoring at the bridge spacers were calculated and special concrete of the region were generated with and
control center. The bride was designed production was made that meets these without faults. As mentioned above, the
according to international wind criteria and limits and that has low water permeability. detected secondary fault was taken into
it passed all performed wind tunnel tests consideration and the southern anchorage
successfully. Main cable of the Suspension Our reinforced concrete caisson structures block was displaced 138 meters in the north
Bridge, insides of the steel towers, insides that form the foundation of the suspension direction. The southern tower was displaced

Gebze - Orhangazi - İzmir Motorway Main Management Center