Column function is as a successor of forces of the entire building into the foundation. When compared, columns are like human skeleton that ensure a building to stand. Columns are including the main structure to carry the heavy burden of building and others like life load (humans and goods), and wind loads. Columns are very having important function, so that the building does not easily collapse.
Picture: picture of the structure using reinforced concrete columns. Basically a framework that sustains the burden of the whole building.
Structure in columns are made of steel and concrete. Both are a combination of materials that resist the pull and pressure forces. Iron is a pull-resistant material, while the concrete is pressure-resistant material. Combination of these two materials in concrete structure allows columns or other structural parts such as beams or sloof can handle pressure and hold the load of the building.
Location of the columns in the construction
Portal Columns should be made continuously from the lower floor to upper floor, which means that the location of the portal columns should not be shifted on each floor, as this will eliminate the stiffness properties of the portal framework structure. So in the plan, it must be avoided that the column is not at the same portal location to every layer of the floor. The size of the column can be getting smaller, according to the load they support, too. Change of column dimension must be done on the floor layers, so that in a column row has the same stiffness.
sketsa oleh Probo Hindarto
weight of the roof to be divided equally between the ring beams and the load transmitted to foundation through the media columns. Besides receiving the load from the column, the foundation also support the weight above the existing wall so that it also support the overall weight of the building.
(Sketch drawing of sloof relation with columns (unscaled)
Sketches by Probo Hindarto)
Force forwarding principle on the foundation column
A portal beam assemble columns into a single unit. The block receives the entire burden of the floor plate and continue to support columns. Relations of beams and columns are pin-pin, a support system that can hold the moment forces, vertical force and horizontal forces. To increase the beam stiffness, at the base at a meeting with the column, allowed to add thickness.
by Probo Hindarto
© Copyright 2009 astudio Indonesia. All rights reserved.