P-delta effect
An additional moment developed in a structural member as its longitudinal axis deviates from the line of action of a compressive force, equal to the product of the load and the member deflection at any point. (Ching, 1995)
An additional moment developed in a structural member as its longitudinal axis deviates from the line of action of a compressive force, equal to the product of the load and the member deflection at any point. (Ching, 1995)