Mat Type Foundation

The load applied from structure to the foundation.

Mat type foundation.

Raft or mat foundation the use of mat foundation is for columns and walls foundations where the loads from the structure on columns and walls are very high. The depth of the raft foundation is manly increased at column positions to carry the high bending moments and shear forces. It is called a raft because the building is like a vessel that floats in a sea of soil. 8 types of the foundation footing are used in.

It is also termed as a box mat foundation. Factors on which footing types depends are bearing capacity of the soil. One reason is if the soil on which the building is constructed does not have a bearing capacity. The condition of the soil.

Additionally to the raft is made to improve the flexural stiffness of the foundation. Raft or mat foundations are the types of foundation which are spread across the entire area of the building to support heavy structural loads from columns and walls. Two common foundations that are for very different uses are mat foundations and pile foundations. The type of foundation required depends on many variables.

How to construct a raft or mat foundation a raft foundation is constructed by first excavating the ground to a uniform flat level. Soil type building load and environment to name a few. The walls are connected by slabs at the top and bottom. The depth of the soil at which safe bearing strata exists.

This type of foundation is suitable for loose soil. The type of superstructure is going to construct. The categorization of the mat foundations is made based on the modifications made to the flat plate. There are many reasons why mat foundation is chosen by builders across the globe.

In the cellular mat foundation the structures of boxes are formed and walls of every box act as beams. We would like to show you a description here but the site won t allow us. Types of mat foundation. In a raft the entire basement floor slab acts as the foundation.

Raft foundations also called mat foundations are most often used when basements are to be constructed. It is common to use mat foundation or deep basements to transfer the column loads to the underlying soil as well as provide floor slab for the basement. The weight of the building is spread evenly over the entire footprint of the building. Since this soil is not able to support the building on its own a mat foundation is built.

A mat foundation is used when the subsoil is weak and column loads are so heavy that the conventional spread footings cover more than 50 of the building area.