Tips & Tricks
October 22, 2024
How to View Step Results for Moving Loads in RISA-3D?
In RISA-3D, moving load results are generated by simulating a load that moves across a structure in defined increments. These loads are often used for designing bridges, cranes, or other structures where dynamic loads shift across the structure over time. Moving loads are complex because they involve numerous load steps, each with its own set of internal forces and deflections. Due to the large number of iterations, RISA-3D envelopes moving load results, meaning only the maximum and minimum values for each member or section are shown. This helps simplify the output and avoids an overwhelming volume of data. However, to view individual load steps for detailed analysis, a different approach must be used. Viewing and Creating Moving Load Steps in Load Combinations To review moving load results such as deflections and force diagrams step by step in RISA-3D, you need to generate load combinations that reflect individual moving load steps. Here’s how you can view and create these steps: Identify the Desired Moving Load Step: First, you must determine which moving load step you want to investigate in detail. This can be done by reviewing the envelope results and noting the governing load combination and step number in the "LC"…
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