Bridge Analysis/manual

From CSI

Contents 1 Overview 2 BrIM - Bridge Information Modeler 3 Bridge Analysis Procedure 4 Lanes 4.1 Centerline and Direction 4.2 Eccentricity 4.3 Width 4.4 Interior and Exterior Edges 4.5 Discretization 5 Influence Lines and Surfaces 6 Vehicle Live Loads 6.1 Direction of Loading 6.2 Distribution of Loads 6.3 Axle Loads 6.4 Uniform Loads 6.5 Minimum Edge Distance 6.6 Restricting a Vehicle to the Lane Length 6.7 Application of Loads to the Influence Surface 6.8 Length Effects 6.9 Application of Loads in Multi-Step Analysis 7 General Vehicle 7.1 Specification 7.2 Moving the Vehicle 8 Vehicle Response Comments 8.1 Superstructure (Span) Moment 8.2 Negative Superstructure (Span) Moment 8.3 Reactions at Interior Supports 9 Standard Vehicles 10 Vehicle Classes 11 Moving Load Analysis Cases 11.1 Example 1 - AASHTO HS Loading 11.2 Example 2 - AASHTO HL Loading 11.3 Example 3 - Caltrans Permit Loading 11.4 Example 4 - Restricted Caltrans Permit Loading 12 Moving Load Response Control 12.1 Bridge Response Groups 12.2 Correspondence 12.3 Influence Line Tolerance 12.4 Exact and Quick Response Calculation 13 Step-By-Step Analysis 13.1 Loading 13.2 Static Analysis 13.3 Time-History Analysis 13.4 Enveloping and Load Combinations 14 Computational Considerations 15 Attachments

Overview

BrIM - Bridge Information Modeler

Bridge Analysis Procedure

Lanes

Centerline and Direction

Eccentricity

Width

Interior and Exterior Edges

Discretization

• lane discretization
• lane loading point

Influence Lines and Surfaces

Vehicle Live Loads

Direction of Loading

Distribution of Loads

Axle Loads

Uniform Loads

Minimum Edge Distance

Restricting a Vehicle to the Lane Length

Application of Loads to the Influence Surface

• distribution of moving loads in influence-based moving load analysis

Length Effects

Application of Loads in Multi-Step Analysis

• distribution of moving loads in step-by-step moving load analysis

General Vehicle

Specification

Moving the Vehicle

Vehicle Response Comments

Superstructure (Span) Moment

Negative Superstructure (Span) Moment

Reactions at Interior Supports

Standard Vehicles

Vehicle Classes

Moving Load Analysis Cases

Example 1 - AASHTO HS Loading

Example 2 - AASHTO HL Loading

Example 3 - Caltrans Permit Loading

Example 4 - Restricted Caltrans Permit Loading

Moving Load Response Control

Bridge Response Groups

Correspondence

Influence Line Tolerance

Exact and Quick Response Calculation

Step-By-Step Analysis

Loading

Static Analysis

Time-History Analysis

Enveloping and Load Combinations

Computational Considerations

Attachments

• Bridge Analysis (Analysis Reference Manual) (PDF, 0.32 MB)

 

Bridge Analysis
Overview	Overview Moving load analysis  · Influenced-based moving load analysis  · Step-by-step moving load analysis
Creating Model	Bearings and foundation springs  · List of Standard Vehicles  · Vehicle Response Components Bridge Object Parameters: Abutment  · Bent  · Deck Section  · Expansion Joints  · Hinges  · Restrainers
Reviewing Results	Vehicle Definition for Animation
Design	Design
Verification Examples	Overview
Example Problems	Overview  · Steel Bridge  · Concrete Box Girder Bridge  · Cable-Stayed Bridge
Test Problems	List of Bridge Test Problems
Miscellaneous	Desired Features  · Bridge Modeler FAQ  · Modeling Recommendations  · Troubleshooting  · Horizontally curved bridges  · Limitations  · Mixed Models  · Tips
	(e)