Lateral loads manual

Automated Lateral Loads Manual
For ETABS

ISO ETA062609M6 Rev. 1 Berkeley, California, USA

Version 9 June 2009

COPYRIGHT
Copyright  Computers and Structures, Inc., 1978-2009 All rights reserved. The CSI Logo® and ETABS® are registered trademarks of Computers and Structures, TM Inc. Watch & Learn is a trademark of Computers and Structures, Inc. The computer program ETABS® and allassociated documentation are proprietary and copyrighted products. Worldwide rights of ownership rest with Computers and Structures, Inc. Unlicensed use of these programs or reproduction of documentation in any form, without prior written authorization from Computers and Structures, Inc., is explicitly prohibited. No part of this publication may be reproduced or distributed in any form or by anymeans, or stored in a database or retrieval system, without the prior explicit written permission of the publisher. Further information and copies of this documentation may be obtained from: Computers and Structures, Inc. 1995 University Avenue Berkeley, California 94704 USA Phone: (510) 649-2200 FAX: (510) 649-2299 e-mail: info@csiberkeley.com (for general questions) e-mail: support@csiberkeley.com(for technical support questions) web: www.csiberkeley.com

DISCLAIMER
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Contents

Automated Lateral Loads
Chapter 1 Introduction
1.1 1.2 1.3 1.4 1.5 About the Manual Technical Support Help Us Help You Telephone Support Online Support 1-1 1-2 1-2 1-3 1-3

Chapter 2

Automatic Seismic Loads
2.1 2.2 Defining Automatic Seismic Load Patterns Automatic Seismic Load Patterns 2.2.1 Distribution of Automatic Seismic Loads at a Story Level 2-2 2-3 2-3i

Automated Lateral Loads Manual

2.2.2 2.2.3 2.3

Load Direction and Diaphragm Eccentricity Story/Elevation Range Data

2-3 2-4 2-5 2-5 2-6 2-7 2-10 2-10 2-12 2-13 2-13 2-15 2-15 2-17 2-17 2-18 2-19 2-21 2-21 2-22 2-23 2-26 2-26 2-27 2-28 2-31 2-31 2-32 2-33 2-36 2-36 2-37 2-38 2-42 2-42 2-42 2-42 2-45 2-45 2-46

1997 UBC Seismic Loads 2.3.1 Options for 1997 UBC Building Period2.3.2 Other Input Factors and Coefficients 2.3.3 Algorithm for 1997 UBC Seismic Loads 1997 UBC Isolated Building Seismic Loads 2.4.1 Other Input Factors and Coefficients 2.4.2 Algorithm for 1997 UBC Isolated Building Seismic Loads 1996 BOCA Seismic Loads 2.5.1 Options for 1996 BOCA Building Period 2.5.2 Other Input Factors and Coefficients 2.5.3 Algorithm for 1996 BOCA Seismic Loads 1995 NBCCSeismic Loads 2.6.1 Options for 1995 NBCC Building Period 2.6.2 Other Input Factors and Coefficients 2.6.3 Algorithm for 1995 NBCC Seismic Loads 2005 NBCC Seismic Loads 2.7.1 Options for 2005 NBCC Building Period 2.7.2 Other Input Factors and Coefficients 2.7.3 Algorithm for 2005 NBCC Seismic Loads 2003 IBC Seismic Loads 2.8.1 Options for 2003 IBC Building Period 2.8.2 Other Input Factors andCoefficients 2.8.3 Algorithm for 2003 IBC Seismic Loads 2006 IBC / ASCE 7-05 Seismic Loads 2.9.1 Options for ASCE 7-05 Building Period 2.9.2 Other Input Factors and Coefficients 2.9.3 Algorithm for ASCE 7-05 Seismic Loads

2.4

2.5

2.6

2.7

2.8

2.9

2.10 1997 NEHRP Seismic Loads 2.10.1 Options for 1997 NEHRP Building Period 2.10.2 Other Input Factors and Coefficients 2.10.3 Algorithm for...