Fixed Column Base Plate Design

The plan dimensions of the slab base plate may now be selected to provide the above area and also so that the projections a and b beyond the rectangle circumscribing the column area nearly equal fig.

Fixed column base plate design.

The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a flat plate of known thickness will deflect under the specified load and distribution. Fixed base columns must also be straight columns and are typically deeper at its base in comparison to pinned base. 3 22 c lumn flange thickness in. The pr gressi n f beam c lumn l adings in rder f in creasing m ments is presented in f ur l ad cases.

Construction of portal frames. A factored load on the column design bearing strength of concrete. Additional plates on the column and anchor rods required. Frames with pinned bases are heavier than those having fixity at the bases.

However frames with fixed base may require a more expensive foundation. Flat plates stress deflection equations and calculators. Beam column base plate design. The graphic of the fixed base column to the left is just an example of what the.

The forces and deformations from the structural analyses used to design the column base plate connection are dependent on the choice of the column base plate connection details. Engineering calculators menu engineering analysis menu. Case a is a l ad case with axial c mpressi n and shear. Typically fixed base columns are recessed below finished floor.

Aisc home american institute of steel construction. The base plate this will result in less labor to fabricate and will result in a more economic design. Connections and element design apex connection column base bracing connection eaves connections purlins. Of the column base plate connection in the elastic and plastic ranges and for seismic loading possibly even the cyclic force deformation relations.

Base plate tensi n interface cantilever parallel t m ment directi n in. Where ƒ ck characteristic strength of concrete. Many of the stress and deflection equations and calculators referenced from. Design bearing strength of concrete 0 45 ƒ ck.