To report zero differences between analysis and design sections, fewer members must be provided to the Auto List, especially for sections available to the lateral systems.Ĭan different performance measures (D/C ratio) be assigned to various objects during steel frame design?Īnswer: Yes, design overwrites may be applied to various structural members within a single model.
When convergence occurs, it is best to review the results, then if necessary, make changes manually. As a result, each additional iteration may again slightly change member selection and the resultant load path.
With each iteration, design changes cause load path to redistribute. Is there an explanation?Īnswer: This indicates that design has converged to the best solution available to the sections presented on the Auto List. On the first iteration, 2000 members differed between analysis and design, and now that it is down to 100, there is no further reduction, and sometime the number increases. Why do some members always differ during design iterations?Įxtended Question: I have done iterative analysis and design many times.
Under Item 1 Design Code, select the appropriate code from the drop-down list. General How do I specify a certain design code?Īnswer: The design code may be specified by selecting Design > _ Frame Design > View/Revise Preferences.
