1Example55TitleLongspanbeamwithlevelingforcesDescriptionDeterminethelevelingforcesP1andP2inordertoinducetheidenticalreactionatthesupportsB,C,EandFandtheidenticalverticaldisplacementatthenodesA,DandG.Thislongspanbeamissubjectedtoitsownweightonly.Refertothefigureshownbelow.StructuralgeometryandanalysismodelVerificationExample2ModelAnalysisType2-DstaticanalysisUnitSystemmm,kgfDimensionLength84000mmElementBeamelementMaterialSteelModulusofelasticityE=2.1×104kgf/mm2Poisson’sratioν=0.3SectionPropertyBox300×200×10/15mmBoundaryConditionElasticboundaryconditions(K=1×106kgf/mm)areassignedatthenodes2,3,5and6.LoadCaseAunittensionloadsareappliedateachlevelingpoint.LoadCase1;Load1.0isappliedtothenodes1and7intheZdirection.LoadCase2;Load1.0isappliedtothenode4inthe-Zdirection.LoadCase3;Selfweightisappliedinthe-Zdirection.CompositionofEquationsConstituteequationsinordertoloadcombinationfactors.Thenumberofunknownloadcombinationfactorsandrequiredlimitationsshouldbeequal.Limitation;Theverticaldisplacementatthenodes7and4areindentical.Thereactionforceatthenodes2and3areindentical.Example553ResultsLoadCombinationFactorsCombinedDisplacementsCombinedReactionForcesVerificationExample4CombinedReactionForcesResultsofMIDAS/GenUnit:mm,kgfLoadCaseLoadcombinationfactorLimitationResultsaftercombination1475.89198Verticaldisplacementatthenodes1and4-61.857832-951.78381Reactionatthenodes2and3958.303
