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1 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated1 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
From InRoads to 3D Bridge Modeling using LEAP
Ron Gant, P.E. (TX), Industry Marketing Director, Roads
2 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
InRoads
InRoads offers immersive interaction of
– Survey
– Geometry
– Terrain modeling
– Corridor modeling
– Dynamic cross sections
– Civil cells
– Design intent
– Design-time visualization
3 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
LEAP Bridge for Everyday Bridges
LEAP Bridge Enterprisefor Concrete Bridges
LEAP Bridge Steelfor Steel Bridges
4 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Which Comes First?
Chicken or Egg?
Bridge or Road?
5 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Design and Rating of Steel Bridges
LEAP Bridge Steel
6 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
LEAP Bridge Steel Overview
• Bridge Configurations– Simple and continuous spans
– Straight and curved alignments
– Rolled shapes, Welded plate girders
– LRFD Specification, 6th Edition, and
– AASHTO Manual for Bridge Evaluation, 2nd Edition
• Provides:– Parametric modeling
– Streamlined analysis
– Design, and Load Rating
7 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Workflow
• Libraries
• Roadway definition
• Superstructure
• Substructure
• Analysis
• Design
• Rating
8 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated8 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Libraries
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Appurtenance Library
• Parapets, Medians, Sidewalks, and Railings
• Automatic DC2 load generation
• User extensible
10 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Vehicle Library
• Standard Design, Legal and Permit vehicles
• Lane Load
• User –defined vehicles
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Material Library
• Concrete
• Steel
• Reinforcing Steel
12 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated12 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Roadway Elements
13 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Roadway Data
Import from Bentley InRoads and GEOPAK
Define manually
14 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Roadway
Alignment, Profile and Cross Section Define a Roadway
15 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated15 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Superstructure
16 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Pier Lines
• Define location of abutments and piers
• Normal or skewed to alignment
• Offset to alignment
17 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Deck Slab
• Define as a single slab or slab segments
• Slab segments can be used for deck placement analysis
• Composite/non-composite based in shear connector locations
18 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Deck Reinforcing Steel
• Locate longitudinal and/or transverse slab steel
• Locations based on slab definition
19 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Member Groups
• Member Group = Framing Plan
• Simple and/or continuous spans
• Curved, straight or flared girder arrangements
20 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Standard Rolled Sections List
• Select standard rolled shapes from library
• Use for main girders, cross frames and shear connectors
21 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Member Definition
• Rolled shapes and/or Built-Up members
• Schedule based methodology
• Linear, parabolic and circular transitions
22 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Cross Frames / Diaphragms
• X, V, inverted V and diaphragms
• Control of work lines relative to girders
• Angle leg and channel toe orientation
23 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Locate Cross Frames / Diaphragms
• Per bay or Entire Span/Bridge
• Wizards to automatically locate connection plates and bearing stiffeners
24 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Stiffener Definition and Location
• Define Bearing and Connection plates, and Shear Stiffeners
• Corner clipping
• Manual or auto locate
25 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Shear Connector Definition and Location
• Define stud, channel or “generic” connectors
• Locate along members by range
• Copy locations from one member to another
26 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Appurtenance Locations
• Locate parapets, medians, railing, sidewalk and generic bridge appurtenances
• Automatic dead load calculation
• Defines travel way for live load analysis
27 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated27 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Substructure
28 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Abutments
• Pile Cap or Step Wall
• Define abutment configuration and geometry
• Define pile size and arrangement
29 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Piers
• Multi-Column or Hammerhead
• Define pier configuration and geometry
• Define pile size and arrangement
30 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Support Condition
Pinned, roller, fixed, float and directional (guided)
31 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated31 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Analysis
32 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Points of Interest
• Automatically generated at key feature locations
• User specified increments
• User custom POIs
• Section breaks
33 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Deck Placement Sequence
Stage Initial
Stage 2
Stage 3
Stage Final
34 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Loads and Load Combinations
Automatically generated Stage 1
deck slab dead load
35 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Analysis
• Line Girder or Grillage Live Load Analysis
• Takes into account structure stiffness variations during staged construction and final analysis for DC1, DC2 and DW loading
• Displays results in graphic and report form
• Powered by STAAD.Pro
36 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Graphical Results
Moment and Shear diagrams
for Stage 1 – end slab
placement
37 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Tabular Results
Displacement report for Stage 1, slab dead load
38 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated38 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Design
AASHTO LRFD Bridge Design Specifications, 6th Edition
39 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Design
Sample reports
• Pass or Fail Report
• Under or Over Design Report
40 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated40 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
Rating
AASHTO Manual of Bridge Evaluation, 2nd Edition with 2013 Interims
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3D MicroStation Model
42 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated42 | WWW.BENTLEY.COM | © 2014 Bentley Systems, Incorporated
From InRoads to 3D Bridge Modeling using LEAP
Ron Gant, P.E. (TX), Industry Marketing Director, Roads