Non Rectangular Mat Foundation

Deep foundations consist of a footing that bears on piers or piles.

Non rectangular mat foundation.

Mat or raft foundation is a large concrete slab supporting several columns in two or more rows. K s 36q. The reinforcing system in the mat can be quite substantial with heavy reinforcing bar mats in the bottom top or both locations within the mat depth. A raft or mat foundation is a large continuous rectangular or circular concrete slab that carries the entire load of the superstructure and spreads it over the whole area beneath the building.

Rectangular mat foundation jobs can also be created quickly using the mat foundation modeling wizard. Hole or a non rectangular shape influenced by a boundary or property line. The mat can be stiffened with a grid or. A deep foundation may be selected if the shallow soils cannot economically support the foundation loads.

A mat foundation spreads out under. It is considered as one type of shallow foundation and is useful in controlling the differential settlement. The mat can be stiffened with a grid or. Depending on the total load applied to the mat and underlying foundation system the thickness of mat foundations can vary from 1 ft 0 3 m to more than 20 ft 7 m.

Raft mat foundation is used in those places where we have less bearing capacity of the soil. 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. Strap footing a combined footing consisting of two spread footings with a beam or strap connecting the slabs. It is used where the supporting soil has low bearing capacity.

Hole or a non rectangular shape influenced by a boundary or property line. Mat foundation a slab that supports multiple columns. However under certain circumstances it may be desirable to construct a footing that supports a line of two or more columns. 5 2 types of foundations shallow footings bear directly on the supporting soil.

This type of foundation is used when the shallow soils can safely support the foundation loads. The purpose of this is to limit differential settlements. For a rectangular footing or mat of dimensions of b x mb. 3 with a limiting value of k sf 0 667k sl 6 2 k s may be computed as.

Rectangular regions may be drawn in graphically using the create rectangular mat boundary tool found in the ribbon toolbar. 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. The bearing capacity increased by combining all individual footings in to one mat since bearing capacity is proportional to width and depth of foundations. Strap footing a combined footing consisting of two spread footings with a beam or strap connecting the slabs.