What is raft foundation, Mechanical Engineering

Assignment Help:

What is raft foundation?

A raft or mat can be considered as a combined footing which covers the entire building area and supports all columns and walls. Such a foundation may consist of a slab of uniform thickness or a slab stiffened by beams either above or below the slab as demonstrated in figure as:

1956_RAFT FOUNDATION.png

RAFT FOUNDATION

When the allowable soil pressure is low or the building loads are heavy, the use of individual spread footings would cover a major portion of the plan area. When the total area of the footings covers more than fifty percent of the area, it is more economical to use a raft for the entire structure.


Related Discussions:- What is raft foundation

Som, What is the tesisting force

What is the tesisting force

How does a hotchkiss drive differ from a torque tube drive, (a) Explain the...

(a) Explain the terms: full floating, three-quarter floating, semi-floating rear axles and their use in different types of vehicles (b) How does a Hotchkiss drive differ from a

Clutch cable routing- gear complaints, Clutch cable routing :Ensure that t...

Clutch cable routing :Ensure that the cable is routed as per standard routing, through the brackets provided.

Describe natural and synthetic sand, Q. Describe Natural and Synthetic Sand...

Q. Describe Natural and Synthetic Sand? Natural sand: A natural sand is the on which is available from natural deposits. Only assistive and water need to be added to it to ma

Two Stage Reciprocating Air Compressors, How does the Two Stage Reciprocati...

How does the Two Stage Reciprocating Air Compressor works?

Heavy load supports, A number of heavy items are to be off-loaded from a He...

A number of heavy items are to be off-loaded from a Heavy-Lift Ship and placed on a series of "support assemblies" on the quayside to await transportation by road to their destinat

Explain streak line and stream function, Describe the following key terms: ...

Describe the following key terms: (i) Stream Line (ii) Path Line (iii) Streak Line (iv) Stream Function (v) Potential flow function (vi) Flow net

What do you mean by machinibility, (a) What do you mean by machinibility ? ...

(a) What do you mean by machinibility ? Discuss the factors which come into play while evaluating the machinability of any metal. Also describe machinability index. (b) Brass co

Moment of force, Moment of Force: Defin e Moment of Force? Describe...

Moment of Force: Defin e Moment of Force? Describe moment center and moment arm. Also classify the moment. Sol.: It is turning effect produced by force, on the body, on wh

Evaluate secure axial load, Evaluate secure axial load: A small piece ...

Evaluate secure axial load: A small piece of ISA (200 × 100 × 15) angle carries a compressive load, the line of action of which coincides along the intersection of the middle

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd