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The ambitious infrastructure

project is scheduled for comple-

tion 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 cur-

rently progressing at full speed.

As one of the contracted com-

panies, 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.

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.

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 pre-

cast 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 vi-

aducts 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

Page 14

Contractors World International Vol 6 No 1

To minimise risk from

seismic activity, over

4,000 dampeners are

installed across the

bridge viaduct.