Nonlinear geometric analysis of steel frames by beam-column method.

Abstract

Nonlineargeometricismentionof geometric errorof structureatthe pointincreasing forceandthe nonlinearmaterialismentionof a change material. Nonlineargeometricanalysis byusingbeam-column method andnonlinearmaterialsthat includingplastichinge oftheendingelementsfor simulationtheworkingoftheelementsas wellastheentirethe trusses systemunderthe effect ofexternal forces. Beam-column includingthe effects ofcompressionandbendingthat describesthecombininganalysis of thedeviationof the beamgeometryandstability issuesoftheload-bearingcolumn. The articleusesadvanced analyticalmethods to analyzethe relationship betweenforceanddisplacementofthe trusses systemthroughquadratic curvewhich includingthecombination of effects, Analysisthe relationship between theforce-displacement ateachincreasingforcepoint andthe point reaching structure’slimit. Using thestabilityof beam-column methodenablesto reduce the declarationofelement,reduceanalysis timeand reduce the problem of computer memorycache

Keywords

• dàn thép
• phi tuyến
• hàm ổn định
• dầm-cột