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

Steam engine main parts, STEAM ENGINE MAIN PARTS:    Connecting Rod: ...

STEAM ENGINE MAIN PARTS:    Connecting Rod: It connects cross head with crank on other side.    Crank Shaft: It is output shaft on which the mechanical power which is a

Types of tool and equipment , TYPES OF TOOL AND EQUIPMENT: We can classify...

TYPES OF TOOL AND EQUIPMENT: We can classify the required tools and equipment into following four categories to understand their uses : General tools, Measuring equipm

Friction, law of static friction

law of static friction

Thermodynamics, why constant volume line has more slop tha constant pressur...

why constant volume line has more slop tha constant pressure line in T-S diagram

Classification of i.c. engines - thermodynamics, Classificatio n of I.C. E...

Classificatio n of I.C. Engines: IC engines are classified as follows: 1 . Nature of thermodynamic cycles as:  Otto cycle engine, Diesel cycle engine and Dual combus

Drum peel strength, what is the dimensions of drum peel strength testing fi...

what is the dimensions of drum peel strength testing fixtures

Functions of geometric modeling, Q. Functions of geometric modeling? De...

Q. Functions of geometric modeling? Design Analysis • Evaluation of area, volume, mass and inertia properties. • Interference checking in assemblies. • Analysis of

Find out the forces in the members of the tower, Find out the forces in the...

Find out the forces in the members of the tower: Find out the forces in the members of the tower. Solution By symmetry, ∠ AFG = ∠ AGF = θ and HG = 7.5 m; while AH = 3

Spot and projection welding machines-rocker arm-press type, Spot and projec...

Spot and projection welding machines On the basis of the mechanical construction, resistance spot welding machines can be of four types viz. rocker arm, press, portable and mul

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