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Unformatted text preview: nagar Steel Plant ( SAI ), New Delhi
SHRIA. A. RAJU
Nagadi Consultants Pvt Ltd, New Delhi
DR Vi V. S. RAO
Cement Corporation of Indta, New Delhi
SHRI0. S. SRIVASTAVA lternate )
College of Engineering, Guindy
DR A. SARGUNAN
SHRIS. B~~MINATHANAlternate )
Public Works Department, Government of Andbra
SHRI K. R. SAXENA
United Technical Consultants Pvt Ltd, New Delhi
DR S. P. SHRIVASTAVA
DR R. KAPUR( Alternate )
Gammon India Limited, Bombay
SHRIT. N. SURBA
SHRIS. A. REDDI( Alternate )
Ministry of Shipping and Transport, New Delhi
SHRID. V. SIKKA Alternate )
Central Public Works Department, New Delhi
SUPERINTENDING G I N E E R
ENGINEER DESIGNS V
( Alternate )
( Continued on page 24) 2 IS : 2950 ( Part I ) - 1981 Indian Standard
CODE OF PRACTICE FOR
DESIGN AND CONSTRUCTION OF RAFT
PART ( I DESIGN Second Revision)
0. FOREWO’RD 0.1 This Indian Standard ( Part I ) was adopted by the Indian Standards
Institution on 5 October 1981, after the draft finalized by the Foundation
Engineering Sectional Committee had been approved by the Civil Engineering Division Council.
0.2 Raft foundation is a substructure supporting an arrangement of columns
or walls in a row or rows and transmitting the loads to the soil by means of
a continuous slab with or without depressions or openings. Such types of
foundations are found useful where soil has low bearing capacity. This
standard was first published in 1965 and revised in 1973. In this revision,
besides making its contents up-to-date, guidelines have been given to choose
particular type of methods in particular situations and giving reference to
‘finite difference method which will be covered at a later stage.
0.3 For the purpose of deciding whether a particular requirement of this
standard is complied with, the final value, observed or calculated, expressing
the result of a test, shall be rounded off in accordance with IS : 2-1960*.
The number of significant places retained ,in the rounded off value should be
same as that of the specified value in this standard.
1.1 This standard ( Part I ) covers the design of raft foundation based on
( for rigid foundation ) and simplified methods
(flexible foundation ) for residential and industrial buildings, store-houses,
silos, storage tanks, etc, which have mainly vertical and evenly distributed
*Rules for rounding off numerical values ( revised ).
3 IS : 2950 ( Part I ) - 1981
2.1 For the purpose of this standard,
IS : 2809-1972* shall apply. the definitions of terms given in 3. NECESSARY INF’ORMATION
3.1 For satisfactory design and construction
following information is necessary: of a raft foundation, the a) Site Plan - Site plan showing the location of the proposed as well
as neighbouring structure. b) Building plan and vertical cross-sections
levels, ducts and openings, etc, layout
columns, shear walls, etc. showing different floor
of load bearing wal...
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This note was uploaded on 03/14/2014 for the course CE 684 taught by Professor Prof.deepankarchoudhury during the Spring '13 term at IIT Bombay.
- Spring '13