$5.$ Moment Distribution Method

$(13$ Marks$)$

a$)$ What is a moment distribution factor? $(3)$

b$)$ Describe the meaning of 'carry over factor'

Now Consider a single longitudinal main frame in the bottom of a ship. Each main frame runs through many web frames $($which are transverse to the axis of the ship$).$ At each Web frame, there is just a small bracket joining the webs. The connevtion only transfers shear, not moment.

c$)$ For a single point load applied to one frame as shown, how would you use the Moment distribution method to determine the bending moment in the frame that contains the point load. Sketch a simplified version of the problem for analysis. $(7)$

sketch of connection

between main frame and web frame

a small bracket is welded

connecting the webs as shown