Spread Footing Vs Mat Foundation

Over which wall and column constructed.

Spread footing vs mat foundation. A strip footing is provided for a load bearing wall. Footings can be of the following types. 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. Raft foundation or mat spread foundation.

Raft mat foundation is used in those places where we have less bearing capacity of the soil. In circumstances like these spread footing the foundation is invaluable. 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. Raft foundation is a combined footing that covers the entire area beneath a structure and supports all the walls and columns.

Mat or raft foundation. Spread footing is a fairly old principle that has been updated and re imagined in the light of today s engineering and scientific breakthroughs. In this foundation an r c c. It is a type of shallow foundation typically used for shallow establishments to convey and spread concentrated burdens by pillars or columns and used for ordinary buildings.

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 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. Sometimes it is stepped to spread the load over a larger.

Backdraft june 14 2011. Johnrss you are right. It is circular square or rectangular slab of uniform thickness. At those places we use mat foundations to distributes the whole loads of the structure to the soil when the area of the footing was increase than the soil load bearing capacity will also increase because this foundation reduces the stress on the soil at the same place.

Although mat foundations are more difficult and more costly to design than individual spread footings they can be used effectively. In such a case it is more economical to provide a strip footing than to provide a number of spread.