RISA-3D Rapid Interactive Structural Analysis ­ 3-Dimensional User's Guide 26632 Towne Centre Drive, Suite 210 Foothill Ranch, CA 92610 (949) 951-5815 (949) 951-5848 (FAX) www.risatech.com Copyright ©2010, RISA TECHNOLOGIES, LLC. All Rights Reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic, or mechanical, including photocopying, recording, or otherwise, without the prior written permission of RISA TECHNOLOGIES, LLC. RISA-3D is a trademark of RISA TECHNOLOGIES, LLC. RISA, as applied to structural engineering software, is a trademark of RISA TECHNOLOGIES, LLC. All other trademarks mentioned in this publication are the property of their respective owners. Every effort has been made to make this publication as complete and accurate as possible, but no warranty of fitness is implied. The concepts, methods, and examples presented in this publication are for illustrative and educational purposes only, and are not intended to be exhaustive or to apply to any particular engineering problem or design. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. RISA TECHNOLOGIES, LLC, assumes no liability or responsibility to any person or company for direct or indirect damages resulting from the use of any information contained herein. Table of Contents Table of Contents Introduction .................................................................................................... 1 How to Use this Book ....................................................................................................1 Using the Online Help ...................................................................................................3 Technical Support Information .....................................................................................4 RISA Technologies Online .............................................................................................4 Before You Begin ............................................................................................. 5 RISA-3D Overview .........................................................................................................5 Hardware Requirements ...............................................................................................6 Program Limits ..............................................................................................................6 License Agreement .......................................................................................................7 Installation ....................................................................................................................8 First Look at RISA-3D ........................................................................................ 9 Starting RISA-3D ............................................................................................................9 Menus .........................................................................................................................11 Toolbars ......................................................................................................................12 Tutorial 1 ­ Modeling ..................................................................................... 17 Create a New Model ...................................................................................................19 Members .....................................................................................................................25 Material Properties .....................................................................................................35 Design Rules ­ Size / UC ..............................................................................................36 Boundary Conditions...................................................................................................49 Tutorial 2 ­ Modify ........................................................................................ 53 Modify Members ........................................................................................................63 Drawing Wall Panels and Additional Framing.............................................................68 Drawing Plates ............................................................................................................77 Submeshing Plates ......................................................................................................79 Tutorial 3 ­ Loading ....................................................................................... 91 Area Loads...................................................................................................................93 Surface Loads ..............................................................................................................97 Distributed Loads ........................................................................................................98 i Table of Contents Basic Load Case Spreadsheet ......................................................................................99 Self-weight ................................................................................................................102 Load Categories.........................................................................................................103 Load Combinations ...................................................................................................104 Tutorial 4 ­ Solving & Results ....................................................................... 113 Solving the Model .....................................................................................................114 Graphic Results .........................................................................................................116 Batch Solution ...........................................................................................................123 Envelope Solution .....................................................................................................125 Optimizing Member Sizes .........................................................................................126 Tutorial 5 ­ Dynamic Analysis ....................................................................... 131 Dynamic Solution ......................................................................................................131 Frequencies and Mode Shapes .................................................................................133 Response Spectra Analysis ........................................................................................134 Tutorial 6 ­ Interoperability ......................................................................... 141 RISA-Revit Structure Link ..........................................................................................141 CIS/2 Translator ........................................................................................................143 RISA-3D & CAD ..........................................................................................................144 Conclusion .................................................................................................................146 Appendix A ­ RISA-3D Toolbar Buttons ........................................................ 147 RISA Toolbar ..............................................................................................................147 Window Toolbar .......................................................................................................149 Drawing Toolbar........................................................................................................153 Selection Toolbar ......................................................................................................155 ii Introduction Introduction How to Use this Book Welcome to the RISA-3D User's Guide. If you are a first-time user of RISA-3D, we recommend that you start with this book. This book contains step-by-step tutorials that guide you through the entire modeling process using most RISA-3D features. You will create a real-world example of building and solving a model, making changes, and optimizing the model. Several tips and shortcuts will also be demonstrated along the way. Begin by reviewing First Look at RISA-3D to familiarize yourself with the toolbars and shortcuts, then proceed to the step-by-step tutorials. To complete all the tutorials will take only a few hours. However, you can speed up the process even further if you skip the supporting text and concentrate only on the action steps, which are indicated with diamond-shaped bullets, as shown below: In order for you to achieve accurate results, it is important that you do not miss any of these action steps while performing the tutorials. The tutorials build upon themselves from start to finish. You have the option of performing them all at one time, or performing each one separately. To make this possible, RISA provides model files for you to load at the beginning of each tutorial. These starter files are located in the RISA program folder under Tutorials, and are named RISA-3D Tutorial 2 Starter.r3d, RISA-3D Tutorial 3 Starter.r3d, etc. After you have gone through the tutorials in the RISA-3D User's Guide, you can use Help menu and the RISA-3D General Reference Manual for complete, detailed information on every topic relating to RISA3D. The topics are arranged in alphabetical order and are thoroughly indexed. If you are a more experienced user and are not sure which book will be most helpful your situation, consider that the tutorials in the RISA-3D User's Guide are intended to teach the basics of defining and solving models in RISA-3D, how and when to apply RISA-3D features to help you be most productive, and how to review the results. However, the more in-depth analytical aspects of RISA-3D will be covered in RISA-3D General Reference Manual and the Help menu. For example, steel, concrete, and wood code checks will be performed in this guide, but the specifics of how those code checks are calculated is covered in detail in Help menu and the RISA-3D General Reference Manual (specifically the sections titled Hot Rolled or Cold Formed Steel Design, Concrete Design, and Wood Design). Where to Download RISA-3D Book Updates Every effort has been made to ensure the accuracy of this book at the time of publication. The latest edition of all books and documents relating to this product are available in Adobe PDF format at http://www.risatech.com. Click Downloads, Product Documentation, then RISA-3D. 1 Introduction Document Conventions The following conventions are used throughout this book: This convention: CAPITAL LETTERS KEY+KEY Italic text Bold text Boxed text Indicates: Names of keys on the keyboard ­ for example, SHIFT, CTRL, or ALT. One key should be held down and then another key pressed ­ for example, CTRL+P or ALT+F4. New terms, other publications, and variable expressions ­ for example, filename.txt. User interface options ­ for example, File menu. Notes or modeling tip information. Tutorial action item for building the model. 2 Introduction Using the Online Help Whether you need help on general topics, specific features, or toolbars, it is all built in to the extensive RISA-3D online Help system. The RISA-3D Help menu was designed to enable you to pinpoint the Help information you need quickly, by offering different ways for you to access and locate that Help, as described below: Help on general topics On the RISA Toolbar, click the Help button . This is the fastest way to get help on general topics. You can also go to the Main menu and click Help, then select Help Topics. Once you enter the Help, notice the three tabs on the left: Contents, Index, and Search. You can explore the Help by topic using either Contents or Index, or explore the Help using your own specific keywords using Search. Help on a specific feature (contextsensitive help) As you work, notice the Help buttons at the bottom of many of the dialog boxes. These provide direct access to the Help information related to the task you are performing. This context-sensitive help may be accessed by pressing the Help button on the dialog box or by pressing the F1 key. Help on toolbar buttons Are you uncertain what a toolbar button is for? Simply hold your mouse pointer over that button (without clicking), and a description of that button will be displayed. 3 Introduction Technical Support Information Technical support is an integral part of the software packages offered by RISA Technologies, and is available to all registered licensees at no additional charge. Our knowledgeable support team is ready to answer your most challenging questions. Before contacting technical support, you may wa ...