Civil Engineering - Steel Structure Design
Exercise : Steel Structure Design - Section 2
A long plate girder is subjected to a maximum bending moment M in which permitted allowable bending stress is fb. The economical depth de and the thickness of the web tw, is given by
The beams supporting the steps of a stair are generally known as
In a grillage column footing maximum bending moment M occurs at the centre of grillage beams. Its value is (where P, L and a are axial load, length of the beam and length of the column base respectively).
For a steel grillage footing to support two unequal column loads
In case of cantilever fillers, the ratio of the span L to depth d, should not exceed