Time History Analysis in SAP2000
**** ERROR*** WHILE RUNNING ANALYSIS
INTERNAL PROGRAM ERROR DETECTED: PLEASE RECORD THE FOLLOWING INFORMATION
VALUES= 1. 000000
MESSAGE= History –LoadStepFunctionSBR: Function time-increment is too small
For modal or direct-integration time-history analysis, as solving time history analysis depend on integration, time increment should be 1/10 the shortest time period of interest to accurately capture response.
So run modal analysis and record the shortest time period and compare it with 1/10 the time increment, if the increment is less than 1/10 time increment (but not greatly less than it), it is ok, else it is not accurate.
Good luck
Well ， I have just solved this problem. It is mostly beacuse of the format of your Accelaration time-history records files! Please check your accelearation records files, if the format of time values in the file is prented as "Scientific notation",like "5.00e-3", then just change the format as normal Numerical one, like"0.005" . Hope it will work.
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