Load path and transfer of seismic forces.
Mat foundation design example ppt.
This also covers how to check ultimate moment resistance design reinforcement plac.
Finite difference and finite element methods can also be used but this section covers only the basic concepts of the first two design methods.
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.
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.
Structural design of mat foundations the structural design of mat foundations can be carried out by two conventional methods.
Mat foundation often considered to be used when dealing with the following conditions.
Unmoving soil eq motion.
Structural design of mat foundations the structural design of mat foundations can be carried out by two conventional methods.
The conventional rigid method and the approximate flexible method.
Finite difference and finite element methods can also be used but this section covers only the basic concepts of the first design method.
6 mat raft foundation 7 types of mat foundations 8 to design mat foundation.
Design of raft foundation page 13 3 3 0 why raft should be used.
Deflected shape soil.
Structural design of mat foundation free download as powerpoint presentation ppt pdf file pdf text file txt or view presentation slides online.
If a single square footing need to be designed under the maximum axial load that is occurred in columns type 4.
This foundation will be used for a loose sand soil.
The spread footings cover over 50 of the foundation area because of large column loads.
Conventional rigid method approximate flexible method.
The soil is soft with a low bearing capacity.
Although mat foundations are more difficult and more costly to design than individual spread footings they can be used effectively.
Example 8 3 4 see example 8 3 4 in textbook page 363.
This is tutorial no 7 of raft mat foundation design course in csi safe.
The properties used in the analysis and the design of this raft foundation are shown in table 4.
Force on a pile eq on unloaded pile pile supporting structure.
