BIM content development : standards, strategies, and best practices

466 Pages·2011·79.277 MB·English

by  Robert S Weygant

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BIM Content
Development

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BIM Content
Development
Standards, Strategies, and
Best Practices
Robert S. Weygant,
, ,
CSI CDT SCIP
Developed with the cooperation and support of the
Construction Specifi cations Institute

John Wiley & Sons, Inc.
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This book is printed on acid-free paper.
Copyright © 2011 by John Wiley & Sons, Inc. All rights reserved
Published by John Wiley & Sons, Inc., Hoboken, New Jersey
Published simultaneously in Canada
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Library of Congress Cataloging-in-Publication Data:
Weygant, Robert S., 1973-
B IM content development : standards, strategies, and best practices / Robert S. Weygant.
p. cm.
Includes index.
ISBN 978-0-470-58357-9 (pbk.); 978-0-470-95133-0 (ebk); 978-0-470-95152-1 (ebk);
978-1-118-03045-5 (ebk); 978-1-118-03046-2 (ebk); 978-1-118-03047-9 (ebk) 1. Building
information modeling. I. Title.
TH437.W49 2011
690.0285—dc22
2010047226
Printed in the United States of America
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Contents
Introduction vii
PART I Getting Started 1
CHAPTER 1 The Mental Transition to Building
Information Modeling 3
CHAPTER 2 Content Hierarchy 15
CHAPTER 3 Understanding Parameters, Attributes,
and Constraints 23
CHAPTER 4 Standards and Formats 37
CHAPTER 5 Where to Begin 59
PART II BIM Content Basics 75
CHAPTER 6 Basic Modeling Considerations 77
CHAPTER 7 Creation and Management of Materials 99
CHAPTER 8 CAD Imports and Nonparametric Objects 115
CHAPTER 9 BIM Data: The “I” in BIM 121

CHAPTER 10 Quality Control 141
CHAPTER 11 Knowledge Management 153
CHAPTER 12 BIM Data and Specifi cations 167
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vi Contents
PART III BIM Content Types 187
CHAPTER 13 Walls 189
CHAPTER 14 Roofs 205
CHAPTER 15 Floors and Ceilings 217
CHAPTER 16 Windows and Skylights 231
CHAPTER 17 Doors 245
CHAPTER 18 Stairs and Railings 263
CHAPTER 19 Curtain Walls and Storefronts 277
CHAPTER 20 Fixtures and Fittings 293
CHAPTER 21 Lighting 307
CHAPTER 22 Mechanical, Electrical, and Plumbing
Components 321
CHAPTER 23 Site and Landscape Components 337
CHAPTER 24 Detailing and Annotations 349
CHAPTER 25 Constellations 363
APPENDIX A OmniClass Table 49 — Properties 383
Index 437

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Introduction:
Using this Book
UNDERSTANDING BUILDING INFORMATION MODELING
What is BIM? Whether we are talking about building information modeling or
building information management, BIM is a technology that has improved the
way structures are designed and built. Just as CAD (computer-aided design)
improved upon hand drafting, BIM is improving upon CAD. The difference is
that BIM involves so many more project participants than just the architect.
Building information modeling allows the architect to design and detail, the
specifi er to document, and the contractor to develop far more quickly than
previous methods. The owner and facility manager also see tremendous
benefi ts in forecasting and budgeting.
Initially, BIM was viewed as a tool to design in three dimensions and use
components rather than lines. In the time that it has evolved, it has grown
tremendously, to a tool that is used for model analysis, clash detection, product
selection, and whole project conceptualization. Just as the aerospace and auto-
motive industries develop digital prototypes of vehicles, the Architectural,
Engineering and Construction (AEC) disciplines are now able to provide a
digital representation of a building well before the fi rst dollar is spent or the
fi rst shovel hits the ground.
BIM is by no means the panacea for all that ails the AEC communities—it’s
simply a better tool for the job. There is no expectation that every component
will be accurate to the last screw or that colors will match identically. BIM
provides a level of detail necessary to design and construct a specifi c project
under specifi c conditions, analyze the design for its merits, and determine
specifi c courses of action based on a greater level of detail than was previ-
ously available. Until recently, the components used within a BIM project were
generic and simple in nature, more like a symbol for a component that is to
be used than an exact replica of a specifi c product. As hardware and software
technology improves and the number of involved manufacturers increases, the
level of detail and amount of information improve as well.
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viii Introduction
Manufacturers are becoming more and more involved in BIM because
industry trends dictate the necessity of BIM on certain projects. This increases
the accuracy of the product information, in turn increasing the accuracy of the
project. Some of the greatest benefi ts of BIM are the ability to analyze the benefi ts
of a specifi c product when used in conjunction with others, perform space plan-
ning based on different sizes of actually available components, and, in many
cases, conceptualize exactly what the space will look like once completed.
BASIC DEFINITIONS AS THEY APPLY TO BIM
(cid:129) Building: Any structure, project, system, or space.
(cid:129) Information: Knowledge of specifi c events or topics gathered or received
by communication.
(cid:129) Modeling: Creation of a schematic description of a system, theory, or
design that accounts for its known or inferred properties for further
study of its characteristics.
(cid:129) Management: The organization and control of something.
(cid:129) Building information: Knowledge applicable to a given project, system,
or element.
(cid:129) Building modeling: Description of a structure, project, system, or space
by way of visual and graphic representation.
(cid:129) Information modeling: A description of the attributes of a design for
further study of its characteristics.
(cid:129) Building information modeling (BIM): A technology that allows rele-
vant graphical and topical information related to the built environment
to be stored in a relational database for access and management.
(cid:129) Building information management (BIM): The collection, organization,
analysis, and distribution of attributed data contained within a building
project.

WHO SHOULD READ THIS BOOK
Design professionals in the AEC (Architectural Engineering and Construction)
communities can leverage the information in this book to implement best
practices in their BIM strategy. Since every fi rm works a bit differently and
every project has its own requirements, AEC professionals can develop a set of
internal standards that are based on widely accepted formats and principles in
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