Mat Foundation Vs Spread Footing

Under some conditions spread footings would have to.

Mat foundation vs spread footing.

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. A footing is under the foundation wall. Mat footings are used when the building load is so high that spread or strip footings could not bear the weight or their employment would be inefficient. Foundation is the support that bears all kinds of loadings.

Footings can be of the following types. Sometimes it is stepped to spread the load over a larger. Footing transmits loads directly to the soil. Foundation is in direct contact with the soil and transmits it to the ground.

Although mat foundations are more difficult and more costly to design than individual spread footings they can be used effectively. A number of footings repose on a foundation. It is circular square or rectangular slab of uniform thickness. The isolated footing is commonly used in reinforced cement concrete columns because it very is simple and most economical as compared to the other footings.

A strip footing is also provided for a row of columns which are so closely spaced that their spread footings overlap or nearly touch each other. This footing is used to. A strip footing is provided for a load bearing wall. Raft mat foundation is used in those places where we have less bearing capacity of the soil.

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. A mat foundation also may be used to resist hydrostatic pressures or to bridge over small soft spots in the soil provided the mat is adequately reinforced. Spread or isolated or pad footing strap footing combined footing strip or continuous footing mat or raft footing what is spread footing or isolated or pad footing. Furthermore mat footings are helping to reduce the varying settlements caused by construction on non homogenous soils or uneven load distribution on the footing.

Mat foundation raft foundation it is a combined footing that may cover the entire area under a structure supporting several columns and walls. Mat foundations are sometimes preferred for soils that have low load bearing capacities but that will have to support high column or wall loads. All footings are foundations. Mat or raft foundation.

In such a case it is more economical to provide a strip footing than to provide a number of spread.