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This page is devoted to frequently asked questions (FAQ) related to Modeling techniques. |
How is flange local buckling checked?
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- Time-history analysis, where the dynamic effects of load application are taken into account. Dynamic effects are dependent upon the rate of load application, along with properties inherent to the structure itself, such as natural frequencies. Load may be applied slowly, in a quasi-static manner, such that dynamic effects are negligible, or at the rate desired. To gauge the sensitivity of response, various rates may be applied and compared.
- Staged-construction analysis, where the entire structure is added in the first stage, then separate stages are defined for each increment of load application.
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Answer: Depending on design methodology, safety factors may be considered by applying a factor which either reduces the resistance of structural members (ASD), or increases the magnitude of loading (LRFD). This may be accomplished through a number of means, including factored load combinations, allowable stresses, resistance factors, etc. The modeling procedure appropriate for any given project depends on the building code being followed. CSI Software then enables factored load combinations and design procedures to be based on allowable stresses or ultimate resistance.
Is there a command to copy objects along with their assignments?
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