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Setting up step-by-step moving load analysis involves the following steps:

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* Define [kb:Vehicle] (via "Define > Bridge Loads > Vehicles")

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* Define [kb:Lane] (via "Define > Bridge Loads > Lanes")

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* Use "Define > Load Pattern" menu command to define [kb:Load pattern] of type BRIDGE LIVE. Click "Modify Bridge Live Button" to define the parameters for this live load pattern, such as lanes, vehicles, vehicle speed, movement direction,

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 etc.

!Define_bridge_live_load_pattern.png!

* This will automatically create a Multi-step static load case that you can review using "Define > Load Cases" menu command.

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* You can also evaluate dynamic response by changing the load case type from "Multi-step Static" to "Time History" and setting analysis type to nonlinear, direct-integration. Set the damping and other parameters as necessary.

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h1. See Also

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* CSI Analysis Reference Manual, chapter "Bridge Analysis", section "Step-by-Step" Analysis"

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