Columns are structural compression members which transmit loads from the upper floors to the lower levels and then to the soil through the foundations. Since columns are compression elements, failure of one column in a critical location can cause the progressive collapse of adjoining floors, and in turn, even the collapse of the entire structure.
Although tied columns are most commonly used because of the lower construction costs, spirally bound circular columns are also used where increased ductility is needed, such as in earthquake zones. The ability of a spirally reinforced column to sustain the maximum load at excessive deformation prevents the complete collapse of the structure before total redistribution of moments and stresses is complete.
Failure in columns could occur as a result of material failure or by loss of lateral structural stability. If a column fails due to material failure, it is classified as a short column, as opposed to the slender column whose failure is by buckling.
The program generates the axial load vs. bending moment interaction diagram of an unconfined circular concrete column, with uniform arrangement of non-prestressed reinforcing bars. The program takes into account the slenderness effects.
Decorative column.
when concrete is vibrated while pouring in to the form work, the cement slurry part tends to get drained through voids between aggregates and the richest part of cement slurry is detained at bottom portion of column. this causes a strong, dense, and void free concrete which ensures better compressive strength than the concrete on top portion of column.
A beam will be placed horizontally, a column will be placed vertically.
Starter may be defined as a base structure before casting of column to keep column in fixed position and to erect form-work.
column curtailment details
a circular
none. circular columns are better than rectangular ones.
An obelisk is a rectangular column ontop of a pyramid
None. It's rectangular.
It does not have to be rectangular. Circular or elliptical ones are common.
A rectangular pyramid has no circular bases.
Animal cells are circular. Plant cells are rectangular.
A cylinder has a circular cross section, a rectangular prism has a rectangular cross section.
A rectangular prism has a rectangular cross section whereas a cylinder has a circular cross section
Plinth
none
a banner is the image at the top of your blog which has your blog title or your name in it. If you have a sidebar circular ones look better, but if your links are at the top a rectangular one looks better.