For the simply supported beam shown, draw influence lines for reactions at B and shear & moment at the center of span BC. Clearly identify critical points on the influence lines with ordinates. The beam supports a uniform dead load of
50l(b)/(f)t, a live (moving) load of
100l(b)/(f)t, and a single live (moving) concentrated load of
100-kips. What is the maximum positive and negative moments at the center of span BC? Show sketches of loadings.
Bis a pin,
Cand
Eare rollers, and
Dis a pinhinge.
q,16
