Posted by: bupka | April 23, 2010

Reinforced Concrete Slabs

Reinforced Concrete Slabs
R. Park & W. L. Gamble
A Wiley Interscience,1980

x +    618    Hal.

Rp.    57,000    ,-

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PREFACE

The book emphasizes the basic behavior of reinforced concrete slabs in the elastic range and at the ultimate load. As such, it endeavors to give readers a thorough knowledge of the fundamentals of slab behavior. Such a background is essential for a complete and proper understanding of building code requirements and design procedures for slabs.

The content and the treatment of the subject of reinforced concrete slabs in this book is intended to appeal to students, teachers, and practicing members of the structural engineering profession.

The book commences with a general discussion of slab analysis and design, and then treats at some depth the determination of the distribution of moments and shears using elastic theory. The “direct design method” and the “equivalent frame method” of the Building Code of the American Concrete Institute are then explained. Next follows a detailed treatment of limit procedures for the ultimate load analysis and design of slabs using general lower bound theory, the strip method, and yield fine theory. The behavior of slabs at the service load is then discussed, with emphasis on deflection and crack control. This is followed by an examinations of the shear strength of slabs. Prestressed concrete slabs are discussed in an introductory manner near the end of the text, the earlier chapters having dealt specifically with reinforced concrete slabs. Finally, the effect of membrane action on the strength of slabs is reviewed.

The current building code of the American Concrete Institute (ACI 318-77) is one of the most widely accepted reinforced concrete codes. It has been adopted by some countries and has strongly influenced the codes of many others. For this reason, reference is made primarily to ACI provisions, although other building codes are also discussed. The book is not heavily code orientated, however. The emphasis is on why certain decisions should be made rather than on how to execute them. V42 believe that structural engineers should be capable of rationally assessing design procedures.

The book has grown from many years of experience in teaching slab theory and design, from significant involvement in slab research and design, and from ass Elation with design code committees. The chapters on yield line theory have been based on editions of seminar notes entitled “Ultimate Strength Design of Reinforced Concrete Structures,” Vol 2, printed by the University of Canterbury. The book is also intended to complement a previously published text Reinforced Concrete Structures by R. Park and T. Paulay (Wiley, 1975), which does not discuss slabs. The unusual combination of authors from New Zealand and the United States arises from complementary’ interests in aspects of slab behavior and the significant slab research that has been conducted at their two universities through the years.

An aspect of the book which distinguishes it from previous texts on slabs is that it attempts to give a full treatment of the background of most of the possible current approaches to reinforced concrete slab analysis and design. Previous texts have emphasized either elastic theory or the strip method or yield line theory but have not attempted to give a comprehensive treatment of all procedures, together with aspects of shear strength, serviceability, and membrane action. The authors have intentionally dealt almost entirely with reinforced concrete slabs and have given only an introduction to prestressed concrete slabs, since prestressed concrete is an extensive subject that deserves a book of its own. Also, the main consideration of the book is two-way floor systems.

We hope that this book will serve as a useful text for teachers preparing advanced undergraduate or master’s courses. It is also hoped that many practicing engineers, and research engineers, will find the book a useful reference.

We would be grateful for any constructive comments or criticisms that readers may have and for notification of any errors that they will inevitably detect.

We have received a great deal of assistance, constructive comment, encouragement, and inspiration from numerous sources. Thanks are due our many colleagues at the University of Canterbury at Christchurch, at the University of Illinois at Urbana–Champaign, and in the profession in New Zealand and the United States. Particular thanks to colleagues in New Zealand are due to Professor H. J. Hopkins for his encouragement; to Professor T. Paulay, Dr. A. J. Carr, and Dr. P. J. Moss for comments; to a number of dedicated graduate students and technicians who have been involved in test programs; and to Mrs. Alice Watt, whose perseverance when typing parts of the manuscript is greatly appreciated. Particular thanks to colleagues in the United States are due Professors N. M. Newmark, C. P. Siess, and M. A. Sozen of the University of Illinois at Urbana–Champaign and Professor B. Mohraz of Southern Methodist University (formerly of the University of Illinois) for encouragement and much technical information; and to Mrs. Mary Ann Speck for typing most of the remaining parts of the manuscript. Appreciation is also expressed to Professor Emeritus R. B. Peck of the University of Illinois for encouragement in initially deciding to undertake preparation of the manuscript, and to various members of ACI-ASCE Committee 421, Reinforced Concrete Slabs, for encouragement in the later phases of writing.

Our thanks are also due to the following organizations for permission to reproduce copyrighted material: American Concrete Institute, American Society of Civil Engineers, McGraw-Hill Book Co., and the University of Illinois at Urbana-Champaign; Cement and Concrete Association, Building Research Station, and Thames and Hudson of the United Kingdom; Institute of Engineers of Australia; Heron of the Netherlands; and SpringerVerlag of West Germany.

Finally, this undertaking could never have been completed without the patience and understanding of our wives, Kathie and Judy.

R. PARK

W. L. GAMBLE

Christchurch, New Zealand

Urbana, Illinois

December 1979


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