e-mosty March 2019 Long Span and Multiple Span Bridges | Page 13
Figures 13 and 14: Wind tunnel testing
PROJECT BENEFITS
This has resulted in specific design challenges and
detailing of reinforcement, e.g. diagonal bars in
some walls and slabs.
The bridge will provide direct access from Europe
to the south-western part of Turkey, while
boosting economic development in the western
region.
SEISMIC ANALYSIS
The bridge is located relatively close to the North
Anatolian Fault but does not cross it directly. The
design criteria consider 3 potential events:
By providing a direct link to the south-west region,
the bridge will also reduce traffic congestion in
Istanbul, which witnesses high-traffic inflow from
Europe.
Functional Evaluation Earthquake (FEE) –
125 year return period
Safety Evaluation Earthquake (SEE) – 975
year return and
No Collapse Earthquake (NCE) – 2475 year
return
The project will also help in improving traffic safety
by reducing the number of intersections, which are
a major cause for accidents.
Source:
The analysis applies displacements in three
directions and these are applied at the six main
supports – two anchorages, two end supports and
.
two towers. Seven sets of time-displacement
actions are applied to the dynamic finite element
model to understand the non-linear element
behaviour. This included the influence of using
hydraulic buffers at the towers, wind bearings and
soil-structure interaction.
www.1915canakkale.com
Presentation “1915 Canakkale Bridge design –
meeting the challenge”. COWI. Istanbul Bridge
Conference, 5 – 6 November 2018
Figure 15: Testing of various profiles
1/2019