SAP2000 v14.1.0 Advanced (Analysis Build 8813/32) File: C:\Users\store\Document...\AnalisisdeEstructuras\Clases Prácticas\2pp.LOG B E G I N A N A L Y S I S 2011/05/21 00:05:30 RUNNING ANALYSIS WITHIN THE GUI PROCESS USING THE ADVANCED SOLVER (PROVIDES LIMITED INSTABILITY INFORMATION) E L E M E N T F O R M A T I O N 00:05:30 L I N E A R E Q U A T I O N S O L U T I O N 00:05:30 FORMING STIFFNESS AT ZERO (UNSTRESSED) INITIAL CONDITIONS TOTAL NUMBER OF EQUILIBRIUM EQUATIONS = 12 NUMBER OF NON-ZERO STIFFNESS TERMS = 69 NUMBER OF EIGENVALUES BELOW SHIFT = 1 L I N E A R S T A T I C C A S E S 00:05:30 USING STIFFNESS AT ZERO (UNSTRESSED) INITIAL CONDITIONS TOTAL NUMBER OF CASES TO SOLVE = 2 NUMBER OF CASES TO SOLVE PER BLOCK = 2 LINEAR STATIC CASES TO BE SOLVED: CASE: DEAD CASE: ACASE1 E I G E N M O D A L A N A L Y S I S 00:05:31 CASE: MODAL USING STIFFNESS AT ZERO (UNSTRESSED) INITIAL CONDITIONS NUMBER OF STIFFNESS DEGREES OF FREEDOM = 12 NUMBER OF MASS DEGREES OF FREEDOM = 0 MAXIMUM NUMBER OF EIGEN MODES SOUGHT = 12 MINIMUM NUMBER OF EIGEN MODES SOUGHT = 1 NUMBER OF RESIDUAL-MASS MODES SOUGHT = 0 NUMBER OF SUBSPACE VECTORS USED = 1397786 RELATIVE CONVERGENCE TOLERANCE = 1.00E-09 FREQUENCY SHIFT (CENTER) (CYC/TIME) = .000000 FREQUENCY CUTOFF (RADIUS) (CYC/TIME) = -INFINITY- ALLOW AUTOMATIC FREQUENCY SHIFTING = YES * * * W A R N I N G * * * THE STRUCTURE HAS NO (UNRESTRAINED) MASS; NO EIGEN MODES CAN BE FOUND * * * W A R N I N G * * * NO EIGEN MODES WERE FOUND A N A L Y S I S C O M P L E T E 2011/05/21 00:05:31