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 f. The economical depth b d and the thickness of the web e t, is given by w
Answer: Option B
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).
Answer: Option C
For a steel grillage footing to support two unequal column loads
A. line of action of the resultant of two column loads, is made to coincide with the centre of gravity of the base of the footing
B. trapezoidal shape is used for the base footing
C. projections of beams on either side in lower tier are such that bending moments under columns are equal
D. bending moment under the columns are kept equal to the bending moment between to two columns
E. all the above.
Answer: Option E