A. GENERAL

1. General Description and application:

Corrugated web beams are built-up girders with a thin-walled, corrugated web and wide plate flanges (Fig 1).

Fig. 1. Corrugated web beam - dimensions, designation

The profiling of the web generally avoids failure of the beam due to loss of stability before the plastic limit-loading for the web is reached. In addition to benefits in production technology, the sinusoidal corrugation has the advantage over trapezoidal profiling of eliminating local buckling of the flat plate strips.

Corrugated web beams may be used as beams (roof or slab beams, structural beams) or as components subject to normal forces (columns or frame columns) virtually without structural limitations. The optimum area of application is in steel structural engineering wherever rolled profiles of structural height greater than 450 mm or low lattice girders of structural height below approximately 1,800 mm were formerly used.

For sample applications see Appendix A.