Moving-load analysis is available to the bridge modeler for generating the influence lines and surfaces of vehicle loading within the traffic lanes of bridge and roadway infrastructure. Vehicle load may be created or selected from a variety of code-based standards, then combined and enveloped with additional static and dynamic load patterns.
Additional information is available in the CSI Analysis Reference Manual, Chapter "Moving-Load Analysis".
Articles
Tutorials
| Title | Description | Program |
|---|---|---|
| Influence-based moving-load analysis first steps (CSiBridge) | Procedure for setting up influence-based moving-load analysis. | CSiBridge |
| Influence-based moving-load analysis first steps (SAP2000) | Procedure for initiating influence-based moving-load analysis. | SAP2000 |
| Lane definition per layout line or frame | This tutorial provides guidelines for lane definition according to either layout-line or frame-object configuration. | SAP2000 |
| Step-by-step moving-load analysis first steps (CSiBridge) | Procedure for setting up step-by-step moving-load analysis. | CSiBridge |
| Step-by-step moving-load analysis first steps (SAP2000) | Procedure for initiating step-by-step moving-load analysis. | SAP2000 |
Test Problems
| Title | Description | Program |
|---|---|---|
| Horizontal moving loads | Demonstration of horizontal moving loads compared against hand calculated results. | CSiBridge |
| Influence surface | Influence-surface verification for a cantilever beam modeled using shell objects. | SAP2000 |
| Moving-load analysis section cuts | Verification of section-cut forces generated during moving-load analysis. | SAP2000 |
| Saving section cuts during moving-load analysis | Sections cuts may be saved during moving-load analysis through this procedure. | SAP2000 |
| Vehicle remains fully in lane | Verification of moving-load analysis when the option is specified for a vehicle to remain fully in lane. | SAP2000 |