The Art of Structural Design - page 101

99
Category 2: Civil Structures
2
Contact
M. van der Burg, B. Hesselink, R. Geijsen
Address Daalseplein 100
Postbus 2855
3500 GW Utrecht, The Netherlands
Website
Movares is an engineering consultancy
providing solutions in the fields
of mobility, infrastructure, building and spatial planning. Usability, future
value and sustainability play a major role in the designs we produce. We
contribute to accessibility through our unique combination of expertise.
Infrastructure is the backbone of development, both for society and the
economy. Movares plays an active role throughout the entire consulting
and engineering process. Our combination of knowledge, expertise and
innovativeness is summed up in our motto:
‘Giving shape to mobility’
.
Owner
Provincie Zuid Holland
Architect
A&E Architecten
General Contractor
Heijmans BV
Engineering Office
Movares Nederland BV
Construction Period 01/2015 - 2/2016
The
Parallelstructuur Gouda
consists of two new regional roads, built
to decrease traffic intensity on the main A12 and A20 highways near
Gouda. One of these roads crosses the river Gouwe with a
new bascule
movable bridge
. The bridge has a width of about 22 m and the main
girder has a span length of 30 m. Therefore it is one of the
largest
bascule bridges in the Netherlands.
The design is an
orthotropic
steel deck
with steel main girders. The
process of designing of a bridge with a steel bridge deck is dominated by
the
fatigue
testing. This means a very detailed model in SCIA Engineer
was required, with a fine mesh, and a model made with only plate
elements. From this model, influence lines could be exported and a
fatigue test carried out. The
strength and stability
verification is also
done using this model, as well as determining the counterweight for
balancing
the bridge.
Special attention was paid to the
stability of the web plate
around the
main centre of rotation. A specific demand was that this plate could not
have stiffeners. Consequently a combination of
plate buckling
and
global buckling
can occur. Since the plate is not rectangular, no proper
Eurocode calculation was possible, so a
non-linear calculation
was done
using SCIA Engineer.
Bascule Bridge Parallelstructuur A12 - Gouda, The Netherlands
SE
Movares Nederland BV
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