![]() For each boundary condition, the table indicates whether the beam is fixed or free in each direction at the point where the boundary condition is defined. For a constraint to exist at a point, the boundary condition must indicate that at least one direction is fixed at that point.Ĭommon boundary conditions are shown in the table below. For a 2-dimensional beam, the directions of interest are the x-direction (axial direction), y-direction (transverse direction), and rotation. The boundary condition indicates whether the beam is fixed (restrained from motion) or free to move in each direction. ![]() Constraints are defined at single points along the beam, and the boundary condition at that point determines the nature of the constraint. Beam Calculator Constraints and Boundary Conditionsįor a beam to remain in static equilibrium when external loads are applied to it, the beam must be constrained.
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