Mat Foundation Design Pdf

Design will require extension of the column foundation beyond the property line.

Mat foundation design pdf.

Instructional materials complementing fema p 751 design examples bearing pressure solution plastic solution is satisfactory. In such a case two or more columns can be supported on a single rectangular foundation as shown in figure 5 1b. Probably the most common mat design consists of a flat concrete slab 0 75 to 2 m thick and with continuous two way reinforcing top and bottom. It is used where the supporting soil has low bearing capacity.

Foundation foundation design 27 mat. If the net allowable soil pressure is known. 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. This type of foundation tends to be heavily overde signed for three major reasons.

Foundation design 28 a plastic solution b elastic solution. The structural design of mat foundations can be carried out by two conventional methods. 10 2 types of mat foundations figure 10 1 illustrates several possible mat foundation configurations. Mat foundations topics.

Mat or raft foundation is a large concrete slab supporting several columns in two or more rows. The bearing capacity increased by combining all individual footings in to one mat since bearing capacity is proportional to width and depth of foundations. Finite difference and finite element methods can also be used but this section covers only the basic concepts of the first design method. Elastic is not.