Question

Using Kani’s method, determine the support moments for the three-span continuous beam with fixed end supports, having spans AB, BC and CD. Span AB carries an eccentric point load of 80kN, 4m span and a load at 1m from point A. Span BC carries an udl of 20 kN/m of 6m span and span CD carries a concentric point load of 60 kN having a span of 4m (EI constant). Sketch the B.M. and S.F.D.

Answer 1

Answer:

Explanation:

A beam ABC is simply supported at A and B and has an overhang BC.

The reaction of top member will acts as the force be the beam ABC.

We need to calculate the value of and

Using figure

For

Put the value of

We need to calculate the value of and

Using figure

For

Put the value of

We need to draw a shear diagram

For diagram,

We need to draw a bending moment diagram

For diagram,

Hence, This is required solution.