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Contractors World International - 2015 Vol 6 No 2

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Turkey:  Mega bridge project: 64 m above the Sea of Marmara - continued

With more than 250 cranes and other heavy equipment, Aydin Vinc A.S. is one of the largest logistics service providers in TurkeyThe ambitious infrastructure project is scheduled for completion in 2017 and will not only complete the highway from Istanbul to Izmir, it will also be the fourth longest suspension bridge in the world at a total length of about 2,700  m.

The extensive project is currently progressing at full speed. As one of the contracted companies, crane service provider Aydin Vinc A.S. of Turkey relies on a Sennebogen 5500 crawler crane for numerous lifting and logistics tasks at the enormous construction site.

To minimise risk from seismic activity, over 4,000 dampeners are installed across the bridge viaduct.Moving massive elements with ease

With more than 250 cranes and other heavy equipment, Aydin Vinc A.S. is one of the largest logistics service providers in Turkey. Founded in 1980, the company specializes in heavy transport and port logistics in addition to crane rental.

To minimise risk from seismic activity, over 4,000 dampeners are installed across the bridge viaduct.

The Sennebogen 5500 crawler crane provided for this job by our Sales and Service Partner Forsen A.Ş. in Turkey at the end of 2014 is equipped with a 35.5 m long main boom and can lift the massive bridge members into position with ease. The 180 t crane is powered by a 261 kW diesel engine.
The flexible crawler crane is particularly suited for the job thanks to its stable wide-gauge undercarriage and 160 kN winch. Even when under load, the heavy steel and precast concrete members can be transported and placed with precision.

The Maxcab comfort cab, which can be inclined up to 20°, offers the operator an ideal overview of the work area.

Seismic Dampening Bridge Bearings

The suspension bridge is located in Izmit Bay - a very highly seismically hazardous area . Therefore, all approaching viaducts will be isolated against a possible earthquake using 4,376 seismic rubber bearings that will be installed on top of the viaducts.

All 4376 bearings have been supplied by the Turkish specialists contractors, EM-KE Construction Ltd. by using Dynamic Isolation Systems (USA) and Robinson Seismic Ltd. (New Zealand) products.


Sennebogen
Aydin Vinc A.S


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