Engineering methodology for calculation of corrugated beams for bending and torsion. Flat bend form stability

An engineering design procedure for calculating bending with torsion in corrugated beams, including finding the critical load of general stability, implemented commonly used MS Excel spreadsheet and verified LIRA-SAPR software package, has been proposed. The method makes it possible to take into account beams section variability corrugation parameters, estimate loading eccentricity effect, availability supporting ribs reinforcements compressed chord from plane. Calculation results particular solutions definition loads at transverse are given. Results test calculation a bent channel beam stress-strain state parameters its verification LIRA-SAP package