AASHTO SCOBS - sp.bridges.transportation.orgsp.bridges.transportation.org/Documents/2015 SCOBS... · AASHTO SCOBS T-19 Saratoga Springs, NY ... 27 Design Tools - Update Automated

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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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Gusset Plate Rating

• Includes LRFR Truss Rating

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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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• 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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• 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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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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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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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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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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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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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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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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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