Abstract
The usual strength of materials approach to the calculation of deflexions of stepped beams can incur errors if applied to stepped beams with large and abrupt changes of section. After initial comparison with experimental results, the finite element displacement method was used in an investigation into the properties of such beams, particular attention being paid to the relationships between the geometry and the centre line deflexion curves. Data are presented so that for a beam of any geometry and any loading condition, the centre line deflexion curve can be calculated by using simple bending relationships in conjunction with an equivalent variable second moment of area.
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