Fundações – Guia para Projeto e Construção

Foundations – Guide to Design and Construction

Foundations or footings are common types of foundations used in the construction of buildings and smaller structures.

Let's see what a base is.

  • Foundation foundation is a type of foundation
  • It's a flat base
  • It is usually a reinforced concrete structure
  • Foundations are built to support columns or similar structures.
  • They are used to support structures with low axial loads.
  • Foundations rest on the ground and have the necessary load capacity to withstand the applied pressure.

Types of foundations

There are different types of foundations used to support structures. However, they can be divided into two main categories.

  • Shallow foundations
  • Deep foundations

In this article, we will discuss the types of shallow foundations.

Types of foundations

  • Continuation of wall foundations
  • Isolated foundations are also called individual foundations.
  • Combined foundations
  • Strip foundations
  • Belt foundations

Above are the main types of foundations. Additionally, a slab foundation can also be considered a foundation, although it generally covers a larger area.

Furthermore, they can be classified according to the type of structure or structural arrangement. The image below shows the three different types of foundations.

  • Simple foundations
  • Sloping terrain
  • Stepped foundation

Foundation design

The design of the foundation foundations is carried out for the limit state of use and for the limit state of load capacity.

  • Checking the limit state of use

The draft limit phase of use serves to verify the operability requirements. In the limit state of use, the following points are checked:

    • Check whether the pressure exerted by the foundation on the ground is lower than the permissible bearing capacity of the soil, or whether the foundations must be sized so that the permissible bearing capacity is lower than the applied pressure.
    • Choose concrete quality based on durability requirements. The article, How to choose the type of concrete For more information you can contact us.
    • If necessary, check the width of the foundation cracks.
  • Checking the ultimate limit state

In addition to the serviceability limit states, foundations are also designed for the support limit states. When designing foundations, the following procedure must be followed.

    • Check the bending capacity of the foundation.
    • Check Vertical Line Scissors
    • Check for piercing scissors

Some other articles about foundations can also be consulted for more information.

  • How to determine the type of foundation
  • Foundation failure
  • Design of individual foundations

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