Mat Foundation Design Example Safe

Mat or raft foundation is a large concrete slab supporting several columns in two or more rows.

Mat foundation design example safe.

Thus a one meter design strip will be drawn in both x and y directions on the foundation. The raft is modeled in safe software. Slab modeling analysis and design procedures feature a suite of sophisticated tools and applications couple with post tensioning punching shear and beam detailing and integrate the influence of soils ramps columns braces walls rectilinear or curvilinear and other. Safe tutorial analysis design of pile supported mat foundation.

These design strips in x and y direction are usually defined in safe software as layer a and layer b. Compensated foundation the net pressure increase in the soil under a mat foundation can be reduced by increasing the depth d f of the mat. Mats and foundations can include nonlinear uplift from the soil springs and a nonlinear cracked analysis is available for slabs. Safe tutorial analysis design of pile supported mat foundation free download as pdf file pdf text file txt or read online for free.

Raft or mat foundations. It is used where the supporting soil has low bearing capacity. Load path and transfer of seismic forces. All analysis and design are based on the aci code.

Instructional materials complementing fema p 751 design examples foundation design 3. The bearing capacity increased by combining all individual footings in to one mat since bearing capacity is proportional to width and depth of foundations. Foundation foundation design 27 mat. A raft foundation also called a mat foundation is essentially a continuous slab resting on the soil that extends over the entire f.

This is tutorial no 1 of raft mat foundation design course. Generating pattern surface loads is easily done by safe with an automated option. In this special project the method used in the design called the. 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.

Design of raft foundation page 8 2. This report shows the structural design of the raft foundation. 45 x95 x7 0 with top of mat 3 6 below grade. Design strips can be generated by safe or drawn in a completely arbitrary manner by the user with complete control provided for.

Force on a pile eq on unloaded pile. Raft foundation can be design using several methods. Example 8 3 4 see example 8 3 4 in textbook page 363.