e-mosty September 2018 Vessels and Equipment Used for Bridge Construction | Page 72

Transportation of Tower Blocks and Panels:
The tower blocks and tower panels were transported by
self propelled barges to the Yaşarsan Shipyard and to the
tower locations.
Main Dimension/ Properties
Length over all 92.9 m.
Breadth 22 m.
Depth 4.5 m.
DWT 4200 ton
Table 1: Properties of Self Propelled Barge “GMK-1”
Figure 4 : Self propelled Barge “GMK-1”
Erection of Towers:
The lower part of the tower legs were erected segment-
by-segment using a floating crane with 1200 ton lifting
capacity. The upper part of the tower legs beyond the
reach of the floating crane were erected panel-by-panel
using a self-climbing crane with a 46 ton lifting capacity.
The tower leg segments nos.1 thru. 11 were therefore
delivered to the site as a fully welded segment, while the
upper tower leg segments 12 thru. 22 were delivered to
the site as 4 stiffened panels.
The lower cross beam between the tower legs was
erected in one piece by floating crane after being
assembled from three smaller sections at the assembly
yard. The upper cross beam was erected in three sections
using the self-climbing crane, then connected together at
height.
↑ Figure 5 : Transportation of tower panels on Barge “Ayyıldız” towed
by a tugboat
↓ Figure 6 : Transportation of tower blocks by “Taklift 7” and “Taklift 6”
from Yaşarsan Shipyard to tower locations
3/2018