Explain about the pedestals as construction engineering.

Introduction of pedestals enables the construction engineers to make up levels to supply larger bearing areas to the foundations and to provide enough development length for reinforcements.

The pedestal can be designed either as reinforced or a plain pedestal. When the stress on top of the pedestal is less than 0.45f_ck (A₁/A₂), no steel is theoretically required. However it is advisable to have at least 0.4 percent of the area of the pedestal as nominal longitudinal steel with 12mm laterals binding them together as in columns. When the stress on the base is greater than 0.45f_Ck (A₁/A₂) reinforcements have to be provided either by extending the longitudinal bars from the column into the base or by means of dowels from base to column.

RC.C. Pedestal