CE Quiz 24

The stiffness matrix of a beam element is

 Find its flexibility matrix

Select the correct the statement

The cross-stiffness coefficients in elastic structural analysis are

The number of unknown to be determined in the flexibility method will be

To generate the j^th column of the flexibility matrix

The elements of flexibility matrix of a structure

The values of displacement in {D} necessary to ensure the equilibrium of the joints are determined using the relation (displacement vector = {D}; stiffness matrix = [K]; and load vector = {P}

A three-span continuous beam is fixed at the ends and supported by unyielding roller supports in between. What is the size of the stiffness matrix?

In the flexibility matrix method of analysis, the values of redundant forces necessary to ensure geometric continuity of structure are determined by using relation (displacement at release due to applied loading = D_p; flexibility matrix = F; redundant forces on released structure = X_R)

For the structure shown, the elements of the flexibility matrix are