Civil Engineering - Building Construction - Discussion

Strip or Isolated : for each column, one foundation(i.e; 1 - 1).
Combined : for two or more columns, one foundation(>=2-1).
Raft or Mat : for two or more columns, one foundation(>=2-1).
Strap : between two footings one beam is provided.

Difference b/w combined and raft is:

If the area of excavated soil >= 50% of total area of construction site,
Then go for "RAFT" footing else combined footing.

For every structure or construction basically we need foundation.

It is a substructure i.e; it lies below the ground level.

Foundation can transfer the superstructure loads to the ground.

A foundation is a non-governmental entity that is established as a nonprofit corporation or a charitable trust, with a principal purpose of making grants to unrelated organizations, institutions, or individuals for scientific, educational, cultural, religious, or other charitable purposes. This broad definition encompasses two foundation types: private foundations and grantmaking public charities.

A private foundation derives its money from a family, an individual, or a corporation. An example of a private foundation is the Ford Foundation.

In contrast, a grantmaking public charity (sometimes referred to as a "public foundation") derives its support from diverse sources, which may include foundations, individuals, and government agencies. An example of a grantmaking public charity is the Ms. Foundation for Women. Most community foundations are also grantmaking public charities.

What is foundation?