There are two primary ways to include P-Delta effect:
- Create a nonlinear analysis case for each load combination including the P-Delta geometric nonlinearity parameter.
- Create an Initial P-Delta Analysis case including the P-Delta geometric nonlinearity parameter for the anticipated gravity loads, and consider all other analyses as linear using the stiffness matrix developed for this one set of P-delta loads.
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\\ The two primary means for including [P-Delta|kb:Geometric nonlinearity] effect in [nonlinear|kb:Nonlinear] analysis include: # For each [load combination|kb:Load combination], create a nonlinear analysis [case|kb:Load case] which includes the P-Delta geometric-nonlinearity parameter. \\ \\ # For the gravity loads anticipated, create an Initial P-Delta Analysis [case|kb:Load case] which includes the P-Delta geometric-nonlinearity parameter, then consider all other analyses as linear while using the stiffness matrix developed for this one set of P-Delta loads. \\ The P-Delta Analysis {new-tab-link:http://www.csiberkeley.com/ |
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support/watch-and-learn}Watch & Learn{new-tab-link} video may provide useful demonstration on the subject. |