The
Composite Bridge Deck Design software option carries out comprehensive
calculations on design members for steel or steel/composite bridge decks to
supported codes, allowing otherwise
time-consuming and error-prone manual design calculations to be carried out
efficiently.
Provides
full details of the calculations made, referencing all relevant
clauses and equations from the design code. Full details of design
checks undertaken can also be written to a model report.
Allows
for the complexity of the analysis model to be increased without
changing the design data, and also allows evaluation of a design
change, without having to change or solve the analysis model each
time.
For
use with 2D Grillage/Plate and 3D element model types. When used
with LUSAS Bridge LT, only 3D beam and 2D grillage models are
permitted.
The
following design codes are currently supported:
AASHTO
LRFD 8th Edition (2017) - AASHTO LRFD Bridge Design
Specifications, 8th Edition, American Association of State
Highway and Transportation Officials, 2017.
AASHTO
LRFD 9th Edition (2020) - AASHTO LRFD Bridge Design
Specifications, 9th Edition, American Association of State
Highway and Transportation Officials, 2020.
CSA S6:19
and CSA S6-14 - Canadian Highway Bridge Design
Codes.
Use the
Steel Composite Bridge Wizard
to automatically create the required Composite Bridge Deck Design members
when bridge design materials are additionally specified for all I-girders.
Add details for transverse stiffener design also.
Define additional design
details for each design member using a tabbed dialog. Span lengths,
segments (a portion of a span defined by a constant or tapered
section), bracing locations, web stiffeners, shear connectors and
locations at which design checks will be made, can all be specified.
Composite Bridge Deck Design
member dialog
Design calculations and results output
Construction
phases supported:
Phase 1
– Self weight
Phase 2a
– Permanent loads
Phase 2b
– Concrete Shrinkage
Phase 3a
– Thermal actions
Phase 3
b – Traffic loads
AASHTO 8th Edition clauses
supported:
6.10.1.6 Flange stresses
6.10.2 Cross-section proportion
limits
6.10.3 Constructability
6.10.3.2 Flexure
6.10.3.3 Shear
6.10.4 Service
6.10.4.2 Permanent Deformations
6.10.5 Fatigue and Flexure
6.10.5.1 Fatigue (Shear connectors and web stiffener/flange connections)
6.10.5.3 Special Fatigue for Webs
6.10.6 Strength
6.10.6.2 Flexure
6.10.6.3 Shear
6.10.7 Positive Flexure
6.10.8 Negative Flexure or Appendix A6 as applicable
6.10.11.1 Transverse Stiffeners
6.10.11.2 Bearing Stiffeners
Summary results
Display design check results in a
summary format that references the checks carried out and the values
obtained. Click on separate tabs to show full results for each check.
Design checks are colour coded green to indicate a pass, and red to
indicate a failure. Each result cell provides a context menu to allow
further investigation of a design check value.
Summary design check
results
Check explorer
Drill-down into the outline results to examine
the various parts of the design check. Each check clicked displays more detail
in the adjacent panel.
Design check explorer
Detailed calculations
View detailed calculations to see the
full details of the design checks carried out for a selected design
value.
Display analysis data such as
section dimensions and section materials, and forces, properties
and stresses used in the various phases of design, to allow
checking of such details.
Click on a clause reference and
utilisation value to view detailed calculations for that check and
result.
Detailed design
calculations - analysis and design check results
Other capabilities
View section stress profiles for the
various load phases and section properties used in the design
check.
Edit section dimensions and see the
design check calculations re-evaluated instantly based on the new
section data using the previously solved results from the model.
This provides the ability to make what-if design changes to try
and ensure a valid design before re-visiting and updating the
bridge model.
Section stress profile and
composite section editing dialogs
Reporting
Print or add analysis data and rendered
design checks to a model report. Each time the model report is
generated, the member report data will be updated to match the current
state of the model.
Watch the Composite Bridge Deck
Design option in action
LUSAS is a trademark and
trading name of Finite Element Analysis Ltd. Copyright 1982 - 2022. Last
modified: March 09, 2023
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policy.
Any modelling, design and analysis capabilities described are
dependent upon the LUSAS software product, version and option in use.
