convergence problem in dynamic analyses-scaling motions

[Jfoyian]

hello,

i'm running dynamic analyses for rc shear walls and when I increase the intensity of the ground motions, (I start from a scaling factor of 0.1 and increase the factor upto failure), it starts not converging at some intensity levels (for instance, for one wall, it stops converging at a factor of 0.95), which are still less than 1. The structure also doesnt fail at that level, but for some reason, it starts not converging. Does anyone have any idea why this's happening? I'm reducing the time steps, playing with the number of integration points, number of iterations, tolerance, and using newton as the algorithm method. What else can I do to achieve convergence at other intensity factors?? Does anyone have the same problem???

[silvia]

have you tried the scripts included in the examples in the examples manual?