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REPORT NO. 33
TO THE
Federal Housing Administration
Criteria for
Selection anct Design
of
Residential
STabs-on-Ground
PREPARED BY
A SPECIAL ADVISORY COMMITTEE
OF THE
Building Research Advisory Board
DIVISION OF ENGINEERING
NATIONAL RESEARCH COUNCIL
Publication 1571
NATIONAL ACADEMY OF SCIENCES / WASHINGTON, D.C. / 1968
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The National Academy of Sciences
was granted permission to publish this report by the
Federal Housing Administration
This report has been prepared under FHA Contract No. HA ( - ) fll-743,
and may not be reprinted or quoted extensively without the
permission of the Federal Housing Administration and the
National Academy of Sciences. This permission is not required for
agencies within the United States Government.
Available through the
Printing and Publishing Office
National Academy of Sciences
Washington, D.C.
Inquiries concerning this Publication should be addressed to:
The Executive Director,
Building Research Advisory Board,
National Academy of Sciences-National Research Council
2101 Constitution Avenue, N.W.,
Washington, D.C. 20418
Library of Congress Catalog Card Number 67-62924
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Special Advisory Committee
JOHN P. GNAEDINGER, Chairman; President, Soil Testing Services, Inc.
Chicago, Illinois
RAYMOND F. DAWSON, Associate Director, Bureau of Engineering Re-
search, University of Texas, Austin, Texas
RUDARD A. JONES, Director, Small Homes Council, University of Illinois,
Urbana, Illinois
SAMUEL JUDD, Chief, Structural Engineering & Architectural Branch,
U.S. Bureau of Reclamation, Department of Interior, Denver, Colorado
(Retired)
CHESTER P. SIESS, Professor of Civil Engineering, University of Illinois,
Urbana, Illinois
HERBERT C. S. THOM, Chief Climatologist, Office of Climatology, U.S.
Weather Bureau, Washington, D.C.
BRAB Professional Staff
MICHAEL C. SOTERIADES, Staff Consultant
ROBERT M. DILLON, Executive Director
S. W. LIPSMAN, Editorial Consultant
FHA Technical Liaison
Liaison from the Federal Housing Administration was provided by the
following:
FRANCIS M. CROMPTON, Acting Chief, Studies and Experimental Housing
Section
ELVIN F. HENRY, Soils Engineer, Office of Technical Standards
JAMES A. MCCULLOUGH, Chief, Engineering Section, Architectural
Standards Division, Office of Technical Standards
JOHN T. DRESSEL, Structural Engineer, Office of Tecbuical Standards
ARTHUR M. SNIDER, Structural Engineer, Office of Technical Standards
.
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FOREWORD
This report was prepared by a Special Advisory Committee of the
Building Research Advisory Board of the Division of Engineering
of the National Research Council. It has been reviewed, accepted,
and approved for transmittal to the Federal Housing Administration
by a Review Subcommittee of the Board, acting on behalf of the
Board.
In so doing, and with the concurrence of the Special Advisory
Committee Chairman, the Board recommends to FHA that, in fur-
therance of the aims of this report, it consider the development
and publication of perhaps ten or more standard designs for what
the report describes as Type III slabs. Although this report pro-
vides adequate guides to design of these slabs (for expansive and
compressible soils) and tables to expedite such design, this addi-
tional simplification could prove of great value to the man in the
field-i.e., he would have available to him the choice of electing to
use a standard design which will in all respects meet or exceed
his requirements, or of using the recommended design procedures
which, although superior in the sense of permitting a design of
greater cost effectiveness, would entail greater effort on his part.
The Board is pleased to acknowledge the work of the Committee
in developing this extensive report. It also acknowledges the assis-
tance given the Committee by the professional staff members of
the Federal Housing Administration who provided valuable technical
liaison, and all those who gave assistance to the Committee through
either correspondence or personal contact, in particular, the pro-
fessional staffs of the Portland Cement Association and the National
Association of Home Builders.
ROBINSON NEWCOMB, Chairman
Building Research Advisory Board
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