Analisis De Vibracion

Floor Vibrations
Due to Human Activity
Floor Vibrations
Due to Human Activity
Thomas M. Murray, PhD, P.E.
Montague-Betts Professor of Structural Steel Design
The Charles E. Via, Jr. Department of Civil Engineering
Virginia Polytechnic Institute and State University
Blacksburg, Virginia, USA
David E. Allen, PhD
Senior Research Officer
Institute for Research in Construction
NationalResearch Council Canada
Ottawa, Ontario, Canada
Eric E. Ungar, ScD, P.E.
Chief Engineering Scientist
Acentech Incorporated
Cambridge, Massachusetts, USA
A M E R I C A N I N S T I T U T E OF S T E E L C O N S T R U C T I O N
C A N A D I A N I N S T I T U T E OF S T E E L C O N S T R U C T I O N
Steel Design Guide Series
© 2003 by American Institute of Steel Construction, Inc. All rightsreserved.
This publication or any part thereof must not be reproduced in any form without permission of the publisher.
Copyright  1997
by
American Institute of Steel Construction, Inc.
All rights reserved. This book or any part thereof
must not be reproduced in any form without the
written permission of the publisher.
The information presented in this publication has been prepared inaccordance with recognized
engineering principles and is for general information only. While it is believed
to be accurate, this information should not be used or relied upon for any specific application
without competent professional examination and verification of its accuracy,
suitablility, and applicability by a licensed professional engineer, designer, or architect.
The publication of thematerial contained herein is not intended as a representation
or warranty on the part of the American Institute of Steel Construction or of any other
person named herein, that this information is suitable for any general or particular use
or of freedom from infringement of any patent or patents. Anyone making use of this
information assumes all liability arising from such use.
Caution must beexercised when relying upon other specifications and codes developed
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Institute bears no responsibility for such material other than to refer to it and incorporate
it by reference at the time of the initial publication of this edition.Printed in the United States of America
Second Printing: October 2003
The co-sponsorship of this publication by the Canadian Institute
of Steel Construction is gratefully acknowledged.
© 2003 by American Institute of Steel Construction, Inc. All rights reserved.
This publication or any part thereof must not be reproduced in any form without permission of the publisher.
TABLE OF CONTENTS
1.Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Objectives of the Design G u i d e . . . . . . . . . . . . . . . 1
1.2 Road M a p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 B a c k g r o u n d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.4 Basic Vibration Terminology . . . . . . . . . . . . . . . . . 1
1.5Floor Vibration Principles . . . . . . . . . . . . . . . . . . . 3
2. Acceptance Criteria For Human Comfort . . . . . . . . 7
2.1 Human Response to Floor M o t i o n . . . . . . . . . . . . . 7
2.2 Recommended Criteria for Structural Design . . . . 7
2.2.1 Walking Excitation . . . . . . . . . . . . . . . . . . 7
2.2.2 Rhythmic Excitation . . . . . . . . . . . . . . . . . 9
3. Natural Frequencyof Steel Framed
Floor Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Fundamental Relationships . . . . . . . . . . . . . . . . . 11
3.2 Composite A c t i o n . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Distributed We i g h t . . . . . . . . . . . . . . . . . . . . . . . . 12
3.4 Deflection Due to Flexure: Continuity......... 12
3.5 Deflection Due to...