Page 41 - World Of Nurol Magazine-27

“ Our Southern
Approach
Viaduct project
gave important
experiences to
the construction
sector that
entered
the bridge
construction
literature. It
became one of
the reference
projects of bridge
construction
with its design
and construction
techniques,
especially push-
drive and heavy
lifting methods,
foundation
structure and
corrosion
protection
features. “

separately at each span. In the Southern a section of 1.123 meters and with heavy Southern Approach Viaduct project gave
Approach Viaduct, on the other hand, we lifting method in a section of 256 meters. important experiences to the construction
made use of the flexibility of steel in its sector that entered the bridge construction
design and construction because of the size The push-drive method used in the project literature. It became one of the reference
of the earthquake loads. For this reason, its was implemented by pushing upwards a projects of bridge construction with its
entire superstructure above the foundation, single piece of deck slab structure with an design and construction techniques,
which consists of the abutment and the deck overall length of 1.123 meters, width of 36 especially push-drive and heavy lifting
slab, is steel. Its deck slab is continuous, meters and weight of 22.500 tons in a radius methods, foundation structure and
single piece and welded along 1.379 meters. of 2.000 meters and at a slope of 3,5%, and corrosion protection features.
it is the first one in the world with these
Its foundation structure in reinforced characteristics. Looking at the project as a whole, which
concrete; due to the soil structure consisting companies are performing the works in
of sand and clay and due to the magnitude In addition to the construction works carried progress and in which regions? Are the
of the earthquake loads, it was constructed out by Nurol Construction, we know that dates for opening the sections to traffic
with Diaphragm Wall Type Foundation steel construction and steel deck slab drive definite in the future periods?
structure with continuous reinforcement works are performed by Nurol Steel, one of
in horizontal, which is implemented in our our group companies. A Turkey record was The section between Gebze-Gemlik has
country for the first time in this project. broken as of July 2015 by placing the last been opened to traffic as of 30 June. The
deck slab. Would you please mention about Gemlik-Bursa section is being constructed
It is coated with a special surface protector this? by Makyol, Bursa-Susurluk section by
due to the reasons that its upper structure Göçay, Susurluk-Balıkesir section by Astaldi,
is steel and it is located in a corrosive As I mentioned just above, construction of Balıkesir-Kırkağaç-Akhisar section by Nurol,
atmosphere, that is in marine environment. the viaduct deck slab was made by applying Akhisar-Manisa section by Özaltın-Makyol
It has a surface protection with cold zinc the heavy lifting method in a section of 256 Partnership and Manisa-İzmir section by
coating material and special paint coating meters consisting of 2 small and 2 big parts. Özaltın.
that does not require any maintenance for
35 years. Its geometry was affected by the The largest of these parts is 124 meters long, Works are being carried out at all sections
geography it is located in; the environmental 36 meters wide and weighs 2.600 tons. This intensively; Gemlik-Bursa section and the
and historical circumstances and its part was constructed on the ground and was 20-km part between Bornova-Kemalpaşa
construction became difficult. For this lifted to its position at a height of 57 meters. are planned to be opened to traffic at the
reason, the construction of the viaduct deck With these characteristics, a country record end of 2016 and the other sections are
slab was made with push-drive method in was broken as construction technique. Our planned to be opened in 2019.

41
41