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West 7th Street Bridge
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Design and
analysis of what is believed to be the world's first precast
network arch bridge, involving post-tensioning analysis, eigen
buckling, nonlinear analysis and staged construction modelling.
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"Once
initial section sizing calculations had been performed, we then
used LUSAS to analyse numerous post-tensioning layouts for a
variety of construction stages... then, once a tendon layout that
satisfied all stress limits had been found, strength checks were
made and the tendon profile approved."
Dean Van Landuyt,
Principal Engineer, Texas Department of Transportation
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Olympic Park Bridges
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Using LUSAS, Atkins found that
existing industry and codified guidance was not always sufficient
to ensure that a structure with unusual buckling behaviour was
correctly modelled and the behaviour correctly accounted for.
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Assessment of Brick
Vaulted Arches at Glasgow Central Station
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"Although
there was new-build design work on this project, which might have
grabbed the headlines from a photographer's point of view, the
real crux of this project from a design/assessment perspective was
being able to justify the new railway tracks over 90m of old
vaulted arches."
Dr. Danny
Boothman, Project Engineer, URS.
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Navvies Bridge
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"We used
modal and transient dynamic analyses to ensure that the response
of the structure would remain within the acceptable limits given
by EN 1990, using pedestrian excitations from the UK National
Annex to EN1991-2."
Antonio Di Caprio,
Project Engineer, Capita Symonds.
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BEBO Arch System
Modelling
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"BEBO engineers have a lot
of experience in the use of finite element analysis software, not
only for the design of projects involving soil-structure
interaction, but also for a variety of materially nonlinear
analysis, particularly of reinforced concrete structures. To
assist us with the design of our range of BEBO Arch Bridge
Solutions, and for our general structural analysis requirements,
LUSAS meets our needs perfectly."
Gian Nick, Managing
Director, BEBO Arch International AG
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New Mizen Head
Footbridge
- Structural assessment of
historical ageing concrete through-arch structure and a staged
construction analysis of a new replacement structure constructed
during the sequential demolition of existing structure
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"It was a very interesting
project, not only because of its complexity, but because of the
project timescale we used variations of our LUSAS model for
assessment, design and construction over a period of 10
years."
Kieran Ruane,
Technical Director, RPS Consulting Engineers Ltd.
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Redhayes Bridge
- Detailed linear, noninear and
pedestrian moving-load and steady-state analysis to assist in the development
of the first major highway infrastructure project designed and
constructed to Eurocodes in the UK.
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This 82m span twin-arch
bowstring bridge was developed with the aid of LUSAS bridge
analysis software and on completion was believed to be the first
major highway infrastructure project designed and constructed to
Eurocodes in the UK.
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Ponte
della Musica
- Natural frequency, forced
vibration analysis and nonlinear buckling analysis of a steel
arch pedestrian bridge.
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"In
addition to using LUSAS for dynamic analysis of the structure; for
both natural frequency and forced vibration, we also used it to
perform nonlinear bucking analysis of the two large arches as well
as for the design of sections using output derived under static
load combinations, for both trams and buses, and also for large
crowd loading."
Davood Liaghat,
Bridge Team Leader at Buro Happold
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Michigan's I-94 Gateway
Arch Bridges
- Optimization of arch
profiles, vehicle load optimisation, and examination of
hanger forces and stressing requirements
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"The
arch optimization phase was greatly enhanced by the result
processing facilities in LUSAS and the ease with which the
geometrical outline of the structure could be
manipulated."
Dr Hiba
Abdalla, Senior Designer, Alfred Benesch
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Watergate Bridge
- Linear and nonlinear
buckling analysis and localised connection
modelling for a steel arch road bridge
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"LUSAS was used throughout the design, from preliminary
sizing of members right through to the detailed design of the more
complex fabricated elements. It helped us to provide the client
with an efficient, aesthetically pleasing structure."
David Doyle, Structural Engineer, Roughan & O’Donovan
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Forsmo Bridge
- Assessment of a steel
truss arch railway bridge using iterative model
development from strain gauge results to assess
Ultimate, Serviceability and Fatigue Limit States.
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"Ramboll successfully
used strain gauge measurements on the Forsmo Bridge in
Sweden to fine-tune a LUSAS Bridge model prior to
carrying-out an in-depth assessment of the structure for a
proposed increase in freight train axle loading."
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Widening
of Kingston Bridge
- 2D plain stress analysis
of reinforced concrete arch bridge widening scheme.
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Newark
High Speed Rail Bridge
- Detailed dynamics analysis
using Interactive Modal Dynamics techniques
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"LUSAS Bridge
analysis software was used to carry out detailed dynamic
analysis for their client Railtrack London North Eastern.
The Interactive Modal Dynamics (IMD) techniques used greatly
reduced the time required to assess the dynamic response of
the structure for numerous combinations of different moving
train loads and speeds."
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Namdo
Bridge
- Linear static analysis to
optimise arch/girder stiffener arrangement
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"LUSAS is good at modelling this kind of
problem. Its shell and solid elements are easy to use, and the ability to plot results on
selected parts of the model allows us to check the stress levels in a very straightforward
manner. This is one of the many benefits in using LUSAS on this and other projects".
Joonsang Son,
Engineer, Sambo Engineering
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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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York Millennium Bridge
- Linear, nonlinear and
dynamic analysis of a cable stayed footbridge with
staged construction checks
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"By using LUSAS, the
entire philosophy of the design, and of pushing back the
boundaries of engineering, could be met. The computer
modelling enabled us to provide a very slender, elegant, and
cost-effective structure that previously could not have been
designed with confidence."
Des Mairs,
Partner, Whitby Bird
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Masonry arch assessment
- Linear and nonlinear
analysis of a medieval masonry arch structure to prove load
capacity
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