Steel Design Guide 11 Vibrations

Steel Design Guide Series

Floor Vibrations
Due to Human Activity

Steel Design Guide Series

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 ResearchOfficer Institute for Research in Construction National Research 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 C A N A D I A N

INSTITUTE I N S T I T U T E

OF OF

STEEL STEEL

C O N S T R U C T I O N C O N S T R U C T I O N

© 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.

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 beenprepared in accordance 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 publicationof the material 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 mustbe exercised when relying upon other specifications and codes developed by other bodies and incorporated by reference herein since such material may be modified or amended from time to time subsequent to the printing of this edition. The 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 thisedition. 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 OFCONTENTS
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 Objectives of the Design G u i d e . . . . . . . . . . . . . . . 1.2 Road M a p . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 B a c k g r o u n d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.4 Basic Vibration Terminology . . . . . . . . . . . . . . . . .

1.5 FloorVibration Principles . . . . . . . . . . . . . . . . . . .

1 1 1 1 1 3
7 7 7 7 9
11 11 12

5. Design For Rhythmic Excitation . . . . . . . . . . . . . . . 5.1 Recommended C r i t e r i o n . . . . . . . . . . . . . . . . . . . . 5.2 Estimation of Required Parameters . . . . . . . . . . . 5.3 Application of the Criterion . . . . . . . . . . . . . . . . . 5.4 Example C a l c u l a t i o n s. . . . . . . . . . . . . . . . . . . . . .

37 37 37 39 40

2. Acceptance Criteria For Human Comfort . . . . . . . . 2.1 Human Response to Floor M o t i o n . . . . . . . . . . . . . 2.2 Recommended Criteria for Structural Design . . . . 2.2.1 Walking Excitation . . . . . . . . . . . . . . . . . . 2.2.2 Rhythmic Excitation . . . . . . . . . . . . . . . . .
3. Natural Frequency of Steel...