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DESIGN

OF

WELDED

STRUCTURES

THE -JAMES F. LINCOLN ARC WELDING FOUNDATION

CLEVELAND OHIO

BY

er W. Blodgettmo

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Published as a Service to Education

by

THE JAMES F. LINCOLN ARC WELDING FOUNDA liON

First Printing June 1966Fourteenth Printing May 1991

Special acknowledgment is herewith made to

Watson N. Nordquist

who has contributed much to the editing

and organization of the material from

which this manual has been prepared

Trustees of the Foundation:

Dr. Donald N. Zwiep, Chairman,Worcester Polytechnic Institute,

Worcester, Massachusetts

John T. Frieg, Trustee, Cleveland, Ohio

Leslie L. Knowlton, Trustee, Arter & Hadden,

Cleveland, Ohio

Officers:

Secretary-Richard'S. Sabo, Cleveland, Ohio

Library of Congress Catalog Card Number: 66-23123

Printed in U.S.A.

Permission to reproduce any material contained herein will be granted upon request,

provided proper credit is given to The James F. Lincoln Arc Welding Foundation,

P. O. Box 17035, Cleveland, Ohio, 44117.

Copyright 1966 by The James F. Lincoln Arc Welding Foundation

The serviceability of a product or structure utilizing this type of information is andmust be the sole responsibility of the builder/user. Many variables beyond the control

of The James F. Lincoln Arc Welding Foundation affect the results obtained in applying

this type of information. These variables include, but are not limited to welding proce-

dure, plate chemistry and temperature, weldment design, fabrication methods and

service requirements.

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PREFACE

WELDED STRUCTURAL CONNECTIONS have long been used in the

construction of buildings, bridges, and other structures. The first welded buildings

were erected in the '20s-the greatest application being in low-level buildings of

many types. The American Welding Society first published specifications for

welded bridges in 1936. But early progress came slowly.

During that year, 1936, The James F. Lincoln Arc Welding Foundation

was created by The Lincoln Electric Company to help advance the progress in

welded design and construction. Through its award programs and educationalactivities, the Foundation provided an exchange of experience and gave impetus

to the growing application of welding.

Thus, within the last decade and particularly the past few years, unitized

welded design has become widely accepted for high-rise buildings and bridges

of nobler proportions in addition to the broad base of more modest structures.

Now, the Foundation publishes this manual for further guidance and

challenge to architects, structural engineers, fabricators and contractors who

will build the structures of tomorrow ... and to the educators who will prepare

young people for these professions. This material represents an interpretation

of the best in accumulated experience of all who have participated in prior

Foundation activities. The author has coordinated this with a continuing study

of current welding research conducted both in the United States and Europe,

and against a background of participation on various code-writing committees.

Much of the direct instructional information that resulted has been pretested

in over 70 structural seminars attended by over 4000 engineers.

The production of this manual has spanned several years during which

constant effort was made to eliminate errors. The author will appreciate having

called to his attention any errors that have escaped his attention and invites

correspondence on subjects about which the reader may have questions. Neither

the author nor the publisher, however, can assume responsibility for the results

of designers using values and formulas contained in the manual since so many

variables affect every design.

June 1966

Secretary

The James F. Lincoln Arc Welding Foundation

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CREDITS

The author and the publisher gratefully acknowledge the organi-

zations and individuals who have contributed photographs or

other illustrative material:

Allied Steel Corporation

Allison Steel Mfg. Co.Allison Structural Steel Co.

American Bridge Division,

U.S. Steel Corporation

American Institute of Steel Construction

American Iron & Steel Institute

American Welding Society

Barber-Magee & Hoffman

John F. Beasley Construction Co.

Bethlehem Fabricating Co.

Bethlehem Steel Corporation

J. G. Bouwkamp

Burkhardt Steel Company

The California Co.

California State Division of Highways

Canadian Welding Magazine

J. A. Cappuccilli, Architect

Column Research Council

Connecticut State Highway Dept.

Dinwiddie Construction Company

Dominion Bridge Company, Ltd.

Dominion Structural Steel Co., Ltd.

B. M. Dornblatt & Associates, Inc.

Dreier Structural Steel Co.

Edmundson, Kochendoerfer & Kennedy

Engineering News-Record

Englert Engineering Company

Flint Steel Corporation

Frankel Steel Company

General Electric Company,

Industrial Heating Dept.

David R. Graham & Associates

Granco Steel Products Co.

Harley, Ellington, Cowin & Stirton, Inc.

Haven-Busch Co.

Herzberg & Associates

Hewitt-Robins, Inc.

Nathan N. Hoffman

Hoyle, Doran&

BerryInland Steel Company

Jackson & Moreland Division,

United Engineers and Constructors, Inc.

Kaiser Steel Corp.

Kansas City Structural Steel Co.

Felix M. Kraus, Consulting Engineer

Lehigh Construction Company

Lehigh University, Fritz Engineering Laboratory

Robert Charles Lesser, Architect

R. C. Mahon Company

P. H. Mallog Co.

McGraw-Hill Book Co.

Midwest Steel & Iron Works

Nelson Stud Welding Division,

Gregory Industries, Inc.

New England Construction Magazine

Pacific Car & Foundry Co.

Pacific Iron and Steel Corporation

Phillips-Carter-Osborn, Inc.

Pittsburgh-Des Moines Steel Co.

H. Platt Company

Port of New York Authority

Product Engineering Magazine

Republic Steel Corporation

Joseph T. Ryerson & Sons, Inc.

Van Rensselaer P. Saxe, Engineer

Schact Steel Construction, Inc.

Steel Joist Institute

Tennessee Gas Pipeline Co.

United States Steel Corporation

Vermont Structural Steel Co.Paul Weidlinger, Consulting Engineers

Welding Engineer Magazine

Welding Research Council

West Coast Steel Works

Minoru Yamasaki-Smith, Hinchman & Grylls

In certain subject areas, the author has made adaptations of work

done by earlier investigators, to wit:

Friedrich Bleich

"Buckling Strength of Metal Structures"

McGraw-Hill Book Co., New York, N. Y.

Raymond Roark

"Formulas for Stress and Strain"

McGraw-Hill Book Co., New York, N. Y.

F. R. Shanley

"Strength of Materials"

McGraw-Hill Book Co., New York, N. Y.

S. Timoshenko

"Theory of Elasticity"

McGraw-Hill Book Co., New York, N. Y.

S. Timoshenko and S. Woinowsky Krieger

"Theory of Plates and Shells"

McGraw-Hill Book Co., New York, N. Y.

S. Timoshenko and James Gere

"Theory of Elastic Stability"

McGraw-Hill Book Co., New York, N. Y.

The publisher regrets any omissions from this list, and would

appreciate being advised about them so that the records can

be corrected.

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