Page 19 - Design of Reinforced Masonry Structures

xviii PREFACE TO THE FIRST EDITION

6 (walls subjected to axial and out-of-plane loads), 7 (shear walls), and 8 (retaining and
subterranean walls) cover theory of design, followed by code requirements, and detailed
examples. Chapters 6 and 7 introduce design for wind and earthquake loads with a com-
prehensive discussion of the seismic design provisions of 97-UBC. The examples in each
chapter are presented in a comprehensive, step-by-step manner that is easy to understand.
Every step is worked out from first principles.
Reinforced masonry consists of four different materials: masonry units, mortar, rein-
forcement, and grout. Masonry derives its strength from the assemblage of these four ele-
ments when they are laid together carefully by skilled masons. Therefore, construction
procedures used in masonry work are just as important as design. In recognition, Chap. 9
is devoted to a comprehensive discussion on various aspects of masonry construction that
include placement of reinforcement, mortar joints, grouting, curing, movement joints, and
water-penetration resistance. Chapter 10 presents brief case studies of many masonry high-
rise buildings to inform readers of the potential of masonry as versatile building material.
This is followed by a discussion on planning and layout of masonry load-bearing build-
ing systems, and design example of a four-story concrete masonry shear wall building.
Component design for masonry buildings is covered in Chaps. 4 through 8.
An extensive glossary of terms related to masonry has been provided following Chap. 10
for readers’ quick reference.
The appendices in the book provide rich information. Appendix A presents 24 design
tables referred to throughout the book. These are gathered together for easy reference,
which makes it possible to use the book in design offices or teaching courses without the
need for a handbook.
This book makes frequent references to Chaps. 16 (Structural Design Requirements)
and 21 (Masonry) of the 97-UBC. These two chapters are provided in Apps. B1 and C,
respectively, for ready reference. Appendix B2 presents a comprehensive discussion and
examples of load combinations as specified in IBC 2000 and 1999-ACI Code. These load
combinations are referred to throughout many examples in the book.
The design of masonry structures presented in this book is based on the allowable stress
design (ASD) principles. Appendix D presents a comprehensive discussion on the strength
design philosophy for masonry structures. Concepts of load factors, strength reduction
factors, and slender wall, and the strength design provisions of the 97-UBC for masonry
structures have been introduced. Detailed examples, including design of slender wall, based
on the strength design principles have been presented in this appendix.