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Movable Bridges
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EC Driver used LUSAS to carry out a
three-dimensional frame analysis of the double-leaf, trunnion bascule
leaves to investigate the forces, moments, shears and reactions in the
various members of the complex structure.
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Chelsea Street
Bridge
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“The
use of LUSAS helped us prove our erection design. Early
communication between the client, Massachusetts DOT, the
Contractor, J. F. White, and FINLEY created a design that took the
Contractor’s strengths into account and maximized the use of
existing support structures to create a reliable and efficient
erection plan".
Jerry M Pfuntner,
P.E., Finley Engineering Group, Inc
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Twin Sails Bridge
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Twin Sails Bridge is a novel
steel bascule road bridge that spans a navigation channel linking
Holes bay with Poole Harbour in the UK. Ramboll worked
closely with architect Wilkinson Eyre and mechanical engineer
Bennett Associates to develop the bridge concept and used
LUSAS Bridge analysis software to assist with its design of the
crossing.
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MediaCityUK Footbridge
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MediaCityUK Footbridge is an
asymmetric, cable-stayed, pedestrian swing bridge whose form and
function was dictated by site constraints. The bridge comprises
two spans: a main span, approximately 65m in length, which
traverses the shipping channel of the Canal, and a 18m flared
concrete-filled back span that forms the counterweight to balance
the asymmetric spans during opening,
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Cathedral Green Footbridge
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Cathedral Green Footbridge is an
award-winning pedestrian and cycle cable-stayed swing bridge. It
has a 30m main span and an 18m cranked back-span that
counterbalances the main deck. The bridge rotates on a pintle
bearing, with a central wheel to support its weight and swings to
one side automatically when the river is in flood.
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Helix Bridge, Paddington Basin
- Static analysis of a steel
and glass retractable footbridge
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"Finite
element analysis with LUSAS was essential on this project and proved
that the differential movement between the glass and the steel helix
was within the strain limits of the silicon adhesive."
Phil Snowsil, Senior
Design Engineer, Davy Markham
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Bellmouth Passage swing
bridges
- Analysis of construction
process and installation of glass and steel swing
footbridges with calculation of pre-camber required to ensure
correct closure
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"Analysis with LUSAS was needed in order to calculate the amount of pre-camber required to ensure closure due to a 120mm deflection along the length of the cantilever span."
Phil Snowsil, Senior
Design Engineer, Davy Markham
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Falkirk Wheel
- Linear and nonlinear
analysis of moving parts of the world's first rotating
boat lifting bridge
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"We needed assurance that the axially loaded joint
(
in the main axle situated just inside the clawed arm) would
not prise apart, and the results from the LUSAS model formed a vital part of this
assurance." Richard Prosser,
Project Engineer,
Tony Gee and Partners.
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Novi
Sad Friendship Bridge
- Global and local analyses
of a cable stayed swing footbridge
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"Using LUSAS
was the only viable way of analysing the structure for the multitude
of loadcases that had to be considered - in effect, we couldn't have
done it any other way."
Karim Yngstrom, Buro Happold
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Gateshead
Millennium Bridge
- Staged construction and
nonlinear dynamic analysis of a cable stayed opening
footbridge
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"Using
LUSAS was essential on the design of this bridge because a
full 3D staged construction analysis to model the
construction sequence, and a step-by-step integration with
large angles, to model the opening and closing sequence was
required."
Shapour
Mehrkar-Asl, Project Engineer, Ramboll
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