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tazarv wrote: > The tricky way is to do moment-curvature analysis with the bond_SP01 that > you won't get any error. Then, use Hysteretic material to linearize the > curve and make the moment-rotation envelop. Note that for numerical > calculation the length of zerolength element is unit not zero. T...

thanks a lot ,but how many elements should i divide to get the relative accurate result.by the way ,why the computing convergence of concrete01withsitc is so bad .

Hi,I started my study .I analysed the top of pier which are under the earthquake. From my study ,i learned that i should use the pattern plain command ,the problem is how to input the ground motions .especially for the condition that the number of ground motions is large ,who can help me solve the t...