Portal de Periódicos da CAPES

BUCKLING OF CONTINUOUS BEAMS ON ELASTIC SUPPORTS

1949; Oxford University Press; Volume: 2; Issue: 3 Linguagem: Inglês

10.1093/qjmam/2.3.257

1464-3855

J. M. Klitchieff,

Structural Load-Bearing Analysis

It a sometimes necessary to select the rigidity of intermediate elastic supports of a beam so that they behave as though they were absolutely rigid when the beam buckles on being subjected to longitudinal compression. The usual method of solving the problem leads to the tedious work of developing a determinant of order m—1 and of solving an equation of degree m—1, m being the number of spans. The author represents the deflexion curve by trigonometric series and arrives at equation (6′), which is more convenient for practical use. The value of the rigidity obtained differs by less than 2·6 per cent, from the true value.