from inroads to 3d bridge modeling using leap · analysis •line girder or grillage live load...

From InRoads to 3D Bridge Modeling using LEAP

Ron Gant, P.E. (TX), Industry Marketing Director, Roads

InRoads

InRoads offers immersive interaction of

– Survey

– Geometry

– Terrain modeling

– Corridor modeling

– Dynamic cross sections

– Civil cells

– Design intent

– Design-time visualization

LEAP Bridge for Everyday Bridges

LEAP Bridge Enterprisefor Concrete Bridges

LEAP Bridge Steelfor Steel Bridges

Which Comes First?

Chicken or Egg?

Bridge or Road?

Design and Rating of Steel Bridges

LEAP Bridge Steel

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

Workflow

• Libraries

• Roadway definition

• Superstructure

• Substructure

• Analysis

• Design

• Rating

Libraries

Appurtenance Library

• Parapets, Medians, Sidewalks, and Railings

• Automatic DC2 load generation

• User extensible

Vehicle Library

• Standard Design, Legal and Permit vehicles

• Lane Load

• User –defined vehicles

Material Library

• Concrete

• Steel

• Reinforcing Steel

Roadway Elements

Roadway Data

Import from Bentley InRoads and GEOPAK

Define manually

Roadway

Alignment, Profile and Cross Section Define a Roadway

Superstructure

Pier Lines

• Define location of abutments and piers

• Normal or skewed to alignment

• Offset to alignment

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

Deck Reinforcing Steel

• Locate longitudinal and/or transverse slab steel

• Locations based on slab definition

Member Groups

• Member Group = Framing Plan

• Simple and/or continuous spans

• Curved, straight or flared girder arrangements

Standard Rolled Sections List

• Select standard rolled shapes from library

• Use for main girders, cross frames and shear connectors

Member Definition

• Rolled shapes and/or Built-Up members

• Schedule based methodology

• Linear, parabolic and circular transitions

Cross Frames / Diaphragms

• X, V, inverted V and diaphragms

• Control of work lines relative to girders

• Angle leg and channel toe orientation

Locate Cross Frames / Diaphragms

• Per bay or Entire Span/Bridge

• Wizards to automatically locate connection plates and bearing stiffeners

Stiffener Definition and Location

• Define Bearing and Connection plates, and Shear Stiffeners

• Corner clipping

• Manual or auto locate

Shear Connector Definition and Location

• Define stud, channel or “generic” connectors

• Locate along members by range

• Copy locations from one member to another

Appurtenance Locations

• Locate parapets, medians, railing, sidewalk and generic bridge appurtenances

• Automatic dead load calculation

• Defines travel way for live load analysis

Substructure

Abutments

• Pile Cap or Step Wall

• Define abutment configuration and geometry

• Define pile size and arrangement

• Multi-Column or Hammerhead

• Define pier configuration and geometry

• Define pile size and arrangement

Support Condition

Pinned, roller, fixed, float and directional (guided)

Analysis

Points of Interest

• Automatically generated at key feature locations

• User specified increments

• User custom POIs

• Section breaks

Deck Placement Sequence

Stage Initial

Stage 2

Stage 3

Stage Final

Loads and Load Combinations

Automatically generated Stage 1

deck slab dead load

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

Graphical Results

Moment and Shear diagrams

for Stage 1 – end slab

placement

Tabular Results

Displacement report for Stage 1, slab dead load

Design

AASHTO LRFD Bridge Design Specifications, 6th Edition

Design

Sample reports

• Pass or Fail Report

• Under or Over Design Report

Rating

AASHTO Manual of Bridge Evaluation, 2nd Edition with 2013 Interims

3D MicroStation Model

From InRoads to 3D Bridge Modeling using LEAP

Ron Gant, P.E. (TX), Industry Marketing Director, Roads

from inroads to 3d bridge modeling using leap · analysis •line girder or grillage live load...

Documents

inroads design guidelines

inroads design_guidelines.pdf

inroads survey 2004 editionhturner/ce313/cogo.pdf ·...

grillage analogy c.s.surana r.agrawal

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instructor inroads

inroads tutorial v8.9

curso inroads 8

grillage analogy

wooden grillage foundations

introduction to inroads roadway designer - · pdf...

inroads briefing

inroads quantity calculations

inroads against addiction - hlc.org · inroads against...

inroads geometry update

introduction to inroads

grillage analogy in bridge analysis

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inroads demonstration

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