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Concrete Frame Design Manual
ACI 318-05/IBC 2006
For SAP2000® and ETABS®

Berkeley, California

February 2007

COPYRIGHT
Copyright © Computers and Structures, Inc., 1978-2007. All rights reserved. The CSI Logo®, SAP2000®, and ETABS® are registered trademarks of Computers and TM TM Structures, Inc. SAFE and Watch & Learn are trademarks of Computers and Structures, Inc. Thecomputer programs SAP2000® and ETABS® and all associated 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 bereproduced or distributed in any form or by any means, 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) 845-2177 FAX: (510) 845-4096 e-mail: info@csiberkeley.com(for general questions) e-mail: support@csiberkeley.com (for technical support questions) web: www.csiberkeley.com

DISCLAIMER
CONSIDERABLE TIME, EFFORT AND EXPENSE HAVE GONE INTO THE DEVELOPMENT AND DOCUMENTATION OF CSI’S PROGRAMS. THE PROGRAMS HAVE BEEN THOROUGHLY TESTED AND USED. IN USING THE PROGRAMS, HOWEVER, THE USER ACCEPTS AND UNDERSTANDS THAT NO WARRANTY IS EXPRESSED OR IMPLIED BYTHE DEVELOPERS OR THE DISTRIBUTORS ON THE ACCURACY OR THE RELIABILITY OF THE PROGRAMS. THE PROGRAMS ARE VERY PRACTICAL TOOLS FOR THE DESIGN/CHECK OF STRUCTURES. HOWEVER THE USER MUST THOROUGHLY READ THE MANUALS AND MUST CLEARLY RECOGNIZE THE ASPECTS OF DESIGN THAT THE PROGRAM ALGORITHMS DO NOT ADDRESS. THE USER MUST EXPLICITLY UNDERSTAND THE ASSUMPTIONS OF THE PROGRAMS AND MUST INDEPENDENTLYVERIFY THE RESULTS.

3

Contents

Chapter 1 Introduction ....................................................1-1
Organization ............................................................................. 1-2 Recommended Reading/Practice............................................. 1-3

Chapter 2 Design Prerequisites .....................................2-1
Design LoadCombinations ...................................................... 2-1 Seismic Load Effects ................................................................ 2-3 Design and Check Stations ...................................................... 2-4 Identifying Beams and Columns .............................................. 2-4 Design of Beams...................................................................... 2-4 Design of Columns ................................................................... 2-5 Design of Joints ....................................................................... 2-6 P-Δ Effects................................................................................ 2-7 Element Unsupported Length................................................... 2-8

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DesignManual Concrete Frame ACI318-99
Choice of Input Units ................................................................ 2-8

Chapter 3 Design Process .............................................3-1
Notation .................................................................................... 3-1 Design Load Combinations ...................................................... 3-4 Column Design......................................................................... 3-6 Generation of Biaxial Interaction Surface .......................... 3-7 Calculate Column Capacity Ratio .................................... 3-11 Required Reinforcing Area............................................... 3-15 Design Column Shear Reinforcement ............................. 3-15 Beam Design...
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