second order moments

EK555

As frame deforms under increasing load, changes in geometry may induce additional second order moments within members. These changes in geometry may be due to the movement at the ends […]

EK157

The second order moments arising from the joint displacements are called the P-Delta effects.

EK156

The second order moments arising from the member deflections from the straight line joining the member ends are called P-delta effects.

EK154

Two methods may be used to allow for second order moments. In the first of these, the moments determined by a first order elastic analysis are amplified by using the […]