Mat Foundation Examples

A mat foundation is a thick reinforced concrete slab supporting arrangements of columns or walls in a row or rows and transmitting the loads to the soil.
Mat foundation examples. Mat foundations also are known as raft foundations is a thick concrete slab placed on the ground as the foundation of the structure. 8 for this example. Mat foundations are constructed on various occasions such as building construction bridge construction tower construction etc. Raft mat foundation is used in those places where we have less bearing capacity of the soil.
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. This approach is generally referred to as the compensated foundation design and is extremely useful when structures are to be built on very soft clays. Example 8 3 4 see example 8 3 4 in textbook page 363. Staad foundation advancedwill use the imported geometry and support reactions to design a mat foundation for the structure.
Note staad pro must be installed on your computer before proceeding with this exercise. Javascript must be enabled in order to use this site. All columns are 40x40cm ultimate soil bearing pressure q ult 100kpa f yk 300mpa f yd 300 1 15 260 87 mpa c25 f ck 20mpa f ctk 1 5 mpa. It is used to support storage tanks industrial equipment silos chimneys and various tower structures.
Example a mat foundation is to be design by the conventional method rigid method for the loadings shown in fig. Staad foundation advanced help.