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1
AASHTOWare Bridge Rating Design Update
AASHTO SCOBS
T-19
Saratoga Springs, NY – April 20, 2015
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Comprehensive Bridge Software
AASHTOWare Bridge Design and Rating
“A Software Success Story”
A 16 year history of the development progression
from common to complex bridge analysis
for more than 40 agencies and 600 consultants!
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Steel Girder Superstructures
• Rolled shapes
• Welded plate
girders
• Built-up I
shapes
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P/S Concrete Superstructures
Precast shapes
• I beams
• Boxes
• Multi-stem Tee
• U beams
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Reinforced Concrete Superstructures
• Tee beams
• Slabs
• I beams
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Multi-cell boxes
Reinforced Concrete
Post-tension Concrete
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Trusses
• Deck
• Through
• Combination
• Counters
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Floor Systems
• Girder-Floorbeam-
Stringer
• Girder-Floorbeam
• Truss-Floorbeam-
Stringer
• Truss-Floorbeam
• Floorbeam-Stringer
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Floor Systems
• Floor trusses
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R/C Box Culverts
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3D Analysis – R/C Multi-girder
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3D Analysis – P/S Multi-girder
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3D Analysis - Steel Multi-girder
Straight – 3D
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3D Analysis – Curved Steel Girder
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Permit Routing & Nonstandard Gage
Billerica
Carlisle
Concord
Burlington
Lexington
Lincoln
BedfordNorth
Road
Carlisle
Road
Concord
Road
Springs
Road
Pine
Hill
Road
Old Billerica
Road
Burlington
Road
Page
Road
Page
Road
Shawsheen
Road
Brooksbie
Road
Hartwell
Road
South
Road
Summer
Street
Hartwell
Avenue
The Great
Road
Bedford
Road
Grove
Street
Bedford
Street
Middlesex
Turnpike
Burlington
Mall
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4
225
225
62
62
62
3
3
128
128
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Substructure - Piers
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AASHTO Spec Checking
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AASHTO Spec Checking
Multiple versions supported…
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AASHTOWare Bridge Rating
Agency Licenses = 39 Licensee
NJ Turnpike
Map Key
Consultant Licenses = 573 Non- Licensee
Washington D.C.
NY City, NY
Manitoba, Canada
Country
Maricopa, AZ
Army Corps of Engr.
City/County/Territory
Phoenix, AZ
Puerto Rico
Current Participation
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AASHTOWare Bridge Design
Manitoba, Canada
Country
City/County/Territory
Cincinnati, OH
Agency Licenses = 17 Licensee
Map Key
Consultant Licenses = 35 Non- Licensee
Current Participation
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Enhancements for 6.7 – June 2015
User Group Top Enhancements
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Enhancements for 6.7 – June 2015
Gusset Plate Rating
• Includes LRFR Truss Rating
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Enhancements for 6.7 – June 2015
Splice Analysis and Rating for Steel Girders
• LRFD, LRFR, LFR
• Hybrid splices
• Splices for Curved Girders
• Simple for Dead Load, Continuous for Live Load
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Enhancements for 6.7 – June 2015
• Cut Top Strand for Prestress Concrete Beams
• Splayed Girder Computation of Distribution
Factors
• Implement RC Slab System in Substructure
• LRFR for Floor System
• AISC Steel Shape Update
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Enhancements for 6.7 – June 2015
• LRFR Lateral Flange Moment Report
• AASHTO Engine Specification updates
MBE 2nd Edition, 2015 interim
LRFD 7th Edition 2015 interim
• Other Maintenance Improvements
Allow negative epsilon in concrete shear computation
Report actions for both sides of a point-of-interest
User-defined DL distribution by percentage
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Design Tools - Update
Automated Prestressed Concrete Beam Design
• Completed the software design
• Phase 1 – Single Beam Design
• Phase 2 – Framing Plan Design
• Nearly complete with the user interface
development for Phase 1
• Release of Phase 1
– 1st quarter 2016
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Design Tools Update
Steel Plate Girder Design Optimization
• Software design is in progress
• Defining requirements
• Preparing user interface mockups
• Formulating the steel design algorithm
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Modernization Update
The modernization proposes to create more
powerful, easier to use tools to assist
agencies in designing and load rating their
inventory in a more cost-effective manner.
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Modernization Update
Why Modernize?
• Life span of the Bridge Design/Bridge Rating
predecessor, BARS, was 20+ years
• It has been nearly 20 years since the design and
development of the current system began and 16
years since it’s April 1999 release (formerly known
as Virtis)
• The design is based on the technology of the late
1990s.
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Modernization Update
Why Modernize?
When development started:
• Windows 95 or NT was common
and was replacing Windows 3.11
• Needed a 386DX processor
• Needed minimum 4 MB RAM (8 MB recommended)
• Hard drives in the 40-100 MB size were common
• There have been 7 versions of Windows OS since
development began:
• Windows 95, 98, ME, XP, Vista, 7, and 8
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Modernization Update
Why Modernize?
Currently:
• Windows 7 or 8 – 64 bit
• Memory – 16 to 32 GB common
• Hard drives in 1 or 2 TB are common, very fast solid
state drives becoming common in 250-500 GB range
Tremendous changes in OS and hardware over the
last 15-20 years
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Modernization Update
Why Modernize?
• Recent addition of 3D analysis pushes the computational
limits of the current system
• Software tools for development have significantly improved
• User expectations have matured
• Hardware has improved, need to take full advantage of new
hardware capabilities (e.g. multi-threading)
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Modernization Update
Benefits:
It is time to migrate to a new architecture using the latest
development tools.
• Significantly upgrade the core technology to a modern
software architecture that better utilizes current and
future hardware, and the latest software development
technologies
• Improve analysis performance by taking advantage of
multi-threading (running multiple tasks simultaneously)
capabilities of the latest hardware
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Modernization Update
Benefits:
• Improve and simplify the user interface - easier to use for
beginners without losing modeling flexibility for advanced
users
• Improve reporting capabilities
• Reduce maintenance costs
• Reduce implementation time for new features
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Modernization Update
Progress:
• Conducted a workshop with stakeholders to identify the
requirements that drive the software design.
• Completed an architecture design that will satisfy those
requirements.
• Prepared conceptual user interface mockups of the
modernized user interface.
• Solicitation for funding later this year (2015)
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Modernization Update
In conclusion…
Improve efficiency for more than 600 consultants
and 40 agencies.
“It’s all about the data!” Licensing agencies
have an enormous investment in their bridge
data. The data and your investment will be
preserved.
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Thank you
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