AASHTOWare BrDR 6.8 Feature Tutorial ADJ1 Analysis with Routine Traffic in Adjacent Lane

Similar documents
AASHTOWare BrDR 6.8 Feature Tutorial 2016 BrDR User Requested Enhancements

AASHTOWare BrDR Prestressed Concrete Bridge Tutorial PS15 - Two Span PS Adjacent Box With Straight Strands

AASHTOWare BrR 6.8 Steel Tutorial Steel Plate Girder Using LRFR Engine

AASHTOWare BrD/BrR Prestress Tutorial 1 Simple Span Prestressed I Beam Example

AASHTOWare BrDR 6.8 Steel Tutorial STL6 Two Span Plate Girder Example

AASHTOWare BrDR D FEM Analysis Tutorial. Curved Steel Multi-Span 3D Example

Elevation. Typical Section

Prestressed Concrete Structure Tutorial

AASHTOWare BrR/BrD 6.8 Reinforced Concrete Structure Tutorial RC2 Reinforced Concrete Slab Example

Prestress Superstructure Tutorial

AASHTOWare BrDR 6.8 3D FEM Analysis Tutorial Steel Diaphragm and Lateral Bracing Specification Checking Example

AASHTOWare BrR/BrD 6.8 Reinforced Concrete Structure Tutorial RC5 Schedule Based Tee Example

AASHTOWare BrD 6.8. BrR and BrD Tutorial. PS7-3 Stem PS Bridge Example

BrD Superstructure Tutorial

Hand Calculation Examples. CG Gilbertson

MDOT Camelback Bridge Example

T4 Floor Truss Example. AASHTOWare BrR 6.8 Truss Tutorial

AASHTOWare Bridge Rating/DesignTraining. STL9 Curved Steel 3D Example (BrR/BrD 6.5)

LRFR Ratings on Existing Bridge Inventories A Case Study

AASHTOWare BrDR 6.8 Prestressed Concrete Design Tool Getting Started

AASHTOWare Bridge Rating/DesignTraining. STL8 Single Span Steel 3D Example (BrR/BrD 6.4)

INTRODUCTORY WEBINAR:

Chapter 13 Bridge Load Rating

AASHTOWare BrR 6.8. Truss Tutorial. T5 - Truss Enhancements

How Loads Are Distributed

Release Notes MERLIN DASH V10.8 (WIN 6.2)

Slab Bridge Designer 2.1 Help: Example Analysis

AASHTOWare Bridge Design and Rating Product Overview. 56 th Annual IHEEP September 2014

The MnDOT Bridge Load Rating Manual Scope of Work and Deliverables

Release Notes MERLIN DASH

STRUCTURE DESIGN CALCULATIONS, DESIGN CHECK CALCULATIONS & RATING REQUIREMENTS. Dave Madden, P.E. Bridge Design Engineer

Session 2: Basic Load Rating Calculations

For Two Steel Bridges

AASHTOWare Bridge Rating Design Update AASHTO SCOBS. T-19 Saratoga Springs, NY April 20, 2015

ERRATA for Manual for Bridge Evaluation, 3rd Edition (MBE-3)

TxDOT Superheavy Bridge Report Requirements. Bridge Division

AASHTOWare BrD 6.8 Substructure Tutorial Modify Footing Example

Bridge Evaluation Based on Health Monitoring Data

Inventory Inspection and Load Rating of a Complex Segmental Concrete Bridge. Presented by Matthew J. Lengyel, PE, SE

MIDAS Civil 2016 v2.1 Release Webinar. PSC Composite Design Check / Load rating

Dead Loads. Load Resistance ηγ i Q i ΦR n. Design Criteria. EGCE 406 Bridge Design III. Loads on Bridge Summary of Concepts.

Chapter 1. General Design Information. Section 1.03 Loads and Load Factors. Introduction. Load Modifying Factors

COMPARATIVE LOAD RATING STUDY UNDER LRFR AND LFR METHODOLOGIES FOR ALABAMA HIGHWAY BRIDGES

AASHTOWare BrD 6.8 Substructure Tutorial Solid Shaft Pier Example

2008 Bridge Load Rating Class 101

At the spring meeting of 1993 the AASHTO Subcommittee

LRFD Bridge Design Manual Changes

THE NEW AASHTO MANUAL FOR BRIDGE EVALUATION 2008

Load Rating Guidance Document Issue Date: 2018

CONTINUOUS SLAB BRIDGE COMPARITIVE STUDY

EGCE 406: Bridge Design

MASTER AGREEMENT FOR BRIDGE DESIGN SERVICES SCOPE OF WORK

2015 Mini, Small, Medium and Large Estimates

Guidelines for Determining Load Capacity Ratings through Engineering Judgment

2015 HDR, Inc., all rights reserved.

Substructure Tutorial

STATE OF NEW HAMPSHIRE DEPARTMENT OF TRANSPORTATION LOAD RATING REPORT GENERAL SULLIVAN BRIDGE - DOVER 200/023 OVER THE LITTLE BAY

CE 4460 Bridge Project Spring By: Megan Allain Bryan Beyer Paul Kocke Anna Wheeler

DEVELOPMENT OF BRIDGE LOAD TESTING PROCESS

Appendix D.2. Redundancy Analysis of Prestressed Box Girder Superstructures under Vertical Loads

AASHTOWare BrD 6.8 Substructure Tutorial Pier Drilled Shaft Example

Flexure Design Sequence

AASHTOWare BrD 6.8. BrR and BrD Tutorial. PS12 - Three Span Prestressed I Beam Stirrup Design Example

Class Topics & Objectives

AASHTO SUBCOMMITTEE ON BRIDGES & STRUCTURES ANNUAL STATE BRIDGE ENGINEERS SURVEY (2015) 47 States Responded

Overview. Fracture Critical Inspection History Project Overview Research to Determine Criteria Case Studies Conclusions

Proposed Modifications to the LRFD Design of U-Beam Bearings

Design of Short Span Steel Bridges

Outline of LRFR for Steel Bridges. Probabilistic Design and Evaluation

Simplified Live Load Distribution Formula NCHRP 12-62

Photo here Todd Thompson, Chair Eric Christie, Vice Chair Spokane, WA

US 34 Over the Missouri River Philip Rossbach, PE - HDR

Creative Approaches to Truss Analysis Using BrR

Implementation of a Refined Shear Rating Methodology for Prestressed Concrete Girder Bridges

Simplified Live Load Distribution Factor Equations

MIDAS Training Series

Recalibration of LRFR Live Load Factors in the AASHTO Manual for Bridge Evaluation

CHEF MENTEUR BRIDGE REPLACEMENT

MnDOT Bridge Load Rating and Evaluation Manual TABLE OF CONTENTS

2010 STATE BRIDGE ENGINEERS QUESTIONNAIRE

PENNDOT e-notification

Chapter 1. General Design Information. Introduction. Bridge Design Manual Chapter 1 General Design Information

Load Rating of Complex Bridges

DESIGNING TWIN TUB GIRDER BRIDGES TO BE NON-FRACTURE CRITICAL. Twin Tub Task Group (T3) Texas Steel Quality Council

OUTLINE. Why? Bridge Inventory Triage Method Triage Example Application What s Next

Design and Rating of Steel Bridges

SHEAR STRENGTH OF DETERIORATED STEEL GIRDERS IN MULTI-GIRDER BRIDGES

BRIDGE DESIGN MANUAL UPDATES. Jamie F. Farris, P.E.

Moving Load Analysis for Bridge Structures

Live-load Distribution Factors: A Parametric Study

CURVED STEEL I GIRDER BRIDGES RAMP GH OVER THE ERIE CANAL INTRODUCTION BEHAVIOR OF CURVED BRIDGES DIFFERENCES FROM STRAIGHT BRIDGES

BRIDGE MANAGEMENT, EVALUATION AND REHABILITATION. Idaho Transportation Department Matt Farrar

Potential for high-performance steel in a long span truss bridge

Appendix D.1. Redundancy Analysis of Composite Spread Box Girder Superstructures under Vertical Loads

V Slab Bridge Design Software, Version 4.0 Superstructure Design Check

Bridge Load Rating JOINT TRANSPORTATION RESEARCH PROGRAM. Rafael R. Armendariz. Mark D. Bowman

Bridging Your Innovations to Realities

Scott Neubauer. Bridge Maintenance and Inspection Engineer Office of Bridges and Structures Iowa DOT

MERLIN-TRAP. Steel Truss Rating and Analysis Program

Bridge Superstructure Tolerance to Total and Differential Foundation Movements

Transcription:

AASHTOWare BrDR 6.8 Feature Tutorial ADJ1 Analysis with Routine Traffic in Adjacent Lane

Topics Covered Methodology implemented for considering routine traffic in adjacent lane Allow distribution factors to be used to compute effects of permit loads with routine traffic Specify adjacent vehicle in the Analysis Settings window Example 1: LFR analysis and LRFR analysis using BID 10 (Example 7) Example 2: LFR analysis using BID 19 (TrussTrainingExample) Example 3: LRFD design review using BID 1 (TrainingBridge1) Methodology implemented for considering routine traffic in adjacent lane The release of version 6.8 provides users the capability to perform design review and rating analysis for permit vehicles with routine traffic in adjacent lanes. When an adjacent vehicle is included in the rating analysis, the live load distribution factor approach specified in LRFD Article 4.6.2.2.5 will be used to deduct the adjacent vehicle live load demand from the capacity. Capacity articles that are dependent on the load applied will use the combined force effect when determining the capacity. LRFD Article 4.6.2.2.5: G = Gp = g1 = GD = gm = Z = Final force effect applied to a girder Force effect due to overload truck Single lane live load distribution factor Force effect due to design loads Multiple lane live load distribution factor A factor taken as 1.20 where the lever rule was not utilized, and 1.0 where the lever rule was used for a single lane live load distribution factor The single lane live load distribution factor, g1, will be applied to the permit vehicle. The multiple lane live load distribution factor, gm, minus the single lane live load distribution factor, g1, will be applied to the adjacent vehicle. For Standard Specifications rating, the Z factor will be ignored. Last Modified: 8/9/2016 1

Allow distribution factors to be used to compute effects of permit loads with routine traffic In the Live Load Distribution window, the Allow distribution factors to be used to compute effects of permit loads with routine traffic checkbox specifies whether the live load distribution factor approach in LRFD Article 4.6.2.2.5 is allowed. This checkbox is always enabled so the user can control whether the live load distribution factor approach for analyzing adjacent vehicle is allowed or not. Standard Specifications live load distribution: Last Modified: 8/9/2016 2

LRFD Specifications live load distribution: The Compute from Typical Section button in this window will compute the live load distribution factors and populate the checkbox by checking the two restrictions listed in LRFD Article 4.6.2.2.5. LRFD Article 4.6.2.2.5 restrictions: The lever rule has been specified for both single lane and multiple lane loadings. The special requirement for exterior girders of beam-slab bridge cross-sections with diaphragms specified in Article 4.6.2.2.2d has been utilized for simplified analysis. If the live load distribution factors are not entered, the AASHTO Engine will compute the live load distribution factors and determine whether the live load distribution factor approach for analyzing adjacent vehicle is allowed. Last Modified: 8/9/2016 3

Specify adjacent vehicle in the Analysis Settings window In the Analysis Settings window, adjacent vehicle can be specified in the Legal Operating, Permit Inventory and Permit Operating categories for LFR analysis. Inventory load factors are applied to the Permit Inventory vehicles. Operating load factors are applied to the Legal Operating and Permit Operating vehicles. Legal Operating analysis considers the legal train of vehicles with the adjacent vehicle requirement (MBE 6B.7.2). LFR analysis: For LRFR analysis, adjacent vehicle can be specified in the Permit Load Rating category. LRFR analysis: For LRFD design review, adjacent vehicle can be specified in the Permit Loads category. LRFD design review: Last Modified: 8/9/2016 4

The live load factor to be applied to the adjacent vehicle is entered in the Advanced Vehicle Properties window. If the Adjacent vehicle live load factor is not entered, the adjacent vehicle will not be included in the analysis. For LRFR analysis, the adjacent vehicle will not be considered for permits that have Unlimited Crossing frequency. Advanced Vehicle Properties window: Last Modified: 8/9/2016 5

Example 1: LFR analysis and LRFR analysis using BID 10 (Example 7) From the Bridge Explorer, open the Bridge Workspace for BID 10 (Example7). Expand the Bridge Workspace and select member G2 s member alternative Interior Member. The Bridge Workspace for BID10 (Example 7) is shown below. Last Modified: 8/9/2016 6

LFR analysis: Open the Analysis Settings window. Select to perform a LFD Rating, add the Type 3 vehicle to the Permit Operating category and the HS 20-44 vehicle as the Adjacent Vehicle. Open the Advanced Vehicle Properties window and enter 1.2 as the Adjacent vehicle live load factor. Click OK to save the settings and close the window. Last Modified: 8/9/2016 7

Click on the Analyze button to perform the LFD Rating. Click OK to close the Analysis Progress window after the analysis is completed. Click on the View Spec Check button to open the Specification Checks window. Expand the tree and select the Stage 3 s Span 1-60.00 ft folder. Open the Spec Check Detail window for the 6B.5.3.3 PS Flexure Rating specification reference to review the ratings. Close the Spec Check Detail window. Last Modified: 8/9/2016 8

LRFR analysis: Expand the Interior Member in the Bridge Workspace. Open the Live Load Distribution window and select the LRFD tab. Select the Allow distribution factors to be used to compute effects of permit loads with routine traffic checkbox. Click OK to close the Live Load Distribution window. Select member G2 s member alternative Interior Member in the Bridge Workspace. Open the Analysis Settings window. Select to perform a LRFR Rating, add the Type 3 vehicle to the Permit Load Rating category and the HL- 93 (US) vehicle as the Adjacent Vehicle. Open the Advanced Vehicle Properties window and enter 1.2 as the Adjacent live load factor. Click OK to save the settings and close the window. Last Modified: 8/9/2016 9

Last Modified: 8/9/2016 10

Click on the Analyze button to perform the LRFR Rating. Click OK to close the Analysis Progress window after the analysis is completed. Click on the View Spec Check button to open the Specification Checks window. Expand the tree and select the Stage 3 s Span 1-60.00 ft folder. Open the Spec Check Detail window for the 6A.4.2.1 General Load Rating Equation - Concrete Flexure specification reference to review the ratings. Last Modified: 8/9/2016 11

Close the Spec Check Detail window. Example 2: LFR analysis using BID 19 (TrussTrainingExample) From the Bridge Explorer, open the Bridge Workspace for BID 19 (TrussTrainingExample). Expand the Bridge Workspace and select Truss 1. Open the Analysis Settings window. Select to perform a LFD Rating, add the Type 3 vehicle to the Permit Operating category and the HS 20-44 vehicle as the Adjacent Vehicle. Open the Advanced Vehicle Properties window and enter 1.2 as the Adjacent vehicle live load factor. Click OK to save the analysis settings and close the window. Click on the Analyze button to perform the LFD Rating. Click OK to close the Analysis Progress window after the analysis is completed. Click on the View analysis output button to open the Analysis Output window. Open the Rating Results Report to review the ratings. Last Modified: 8/9/2016 12

Example 3: LRFD design review using BID 1 (TrainingBridge1) From the Bridge Explorer, open the Bridge Workspace for BID 1 (TrainingBridge1). Expand the Bridge Workspace and select member G2 s member alternative Plate Girder. Open the Analysis Settings window. Select to perform a LRFD Design Review, add the HS 20-44 vehicle to the Permit Loads category and the HL-93 (US) vehicle as the Adjacent Vehicle. Open the Advanced Vehicle Properties window and enter 1.2 as the Adjacent vehicle live load factor. Click OK to save the settings and close the window. Last Modified: 8/9/2016 13

Click on the Analyze button to perform the LRFD Design Review. Click OK to close the Analysis Progress window after the analysis is completed. Click on the View Spec Check button to open the Specification Checks window. Expand the tree and select the Stage 3 s Span 1-80.50 ft folder. Review the 6.10.9 Shear Resistance specification reference. Last Modified: 8/9/2016 14

Last Modified: 8/9/2016 15

Close the Spec Check Detail window. Perform another LRFD Design Review without the adjacent vehicle and review the 6.10.9 Shear Resistance specification reference. Last Modified: 8/9/2016 16

2024 © businessdocbox.com Privacy Policy | Terms of Service | Feedback