أساسيات الخرسانة المسلحة و الخرسانة سابقة الإجهاد للدكتور محمد هلال

Fundamentals of Reinforced and Prestressed Concrete
Fundamentals of Reinforced and Prestressed Concrete

Fundamentals
of Reinforced and
Prestressed Concrete
By
DIPL. ING. M. HILAL DR. SC. TECHN.
PROFESSOR, FACULTY OF ENGINEERING
CAIRO UNIVERSITY, GIZA
2005

PREFACE
Structures should be designed and constructed to fulfill safety,
economy and efficiency. When dealing with reinforced and prestressed
concrete structures, the designer is facing a combination of two to-
tally different materials, concrete and steel, behaving in a very
complicated manner. A rigorous treatsent of the inelastic, discontinuous, time-dependent behavior of concrete reinforced by steel is virtually an impossibility. However, extensive research in the field of
reinforced and prestressed concrete yielded a good understanding of
their behavior and relatively simple theories have been developed for
analysis and desig. Nevertheless, successful application of these
theories needs a good grasp of the assumptions on which they are
based and of the extent to which they can be applied. This book is
an attempt to present the fundamentals of reinforced and prestressed
concrete necessary for economic, safe and efficient design as viewed
by the author through forty years of experience in this field.
This edition of the book is divided into four parts, published
earlier separately:
Part 1 is composed of three chapters:
Chapter 1 describes the physical and mechanical properties of concrete and reinforcing steel,
Chapter 2 presents the analysis of elements in compression, tension,
bending with and without axial forces, by making use of basic strength
of materials and pertinent simplifications that describe the combined
action of concrete and steel,

Chapter 3 discusses safety provisions and different theories of
design.
Part 2 contains three more chapters dealing with the design of different reinforced concrete elements:
Chapter 4 gives the design of reinforced concrete beams. It explains
the load distribution, internal forces, dimensioning and detailing of
beams. Design of sections of different shapes is presented using both
the working stress design (USD) method and the ultimato strength
design (USD) method,
Chapter 5 deals with common types of slabs: solid, ribbed, hollow and
flat. WSD method is used in solving design examples. Beamless slabs
supported on columns of irregular arrangement are also presented,
Chapter 6 is devoted for columns and elements subjected to eccentric
forces causing uniaxial and bianial bending. Both the WSD and USD
methods are used in the design. This part was first published in 1976
then together with Part 1 they formed Volume I, published in 1978.
Part 3 contains Chapters 7 to 11 covering the following subjects:
stairs, panelled beams, surface and deep foundations, retaining walls
and torsion.
Part 4 presents the fundamentals of prestressed concrete. It is divided into ten sections covering the following subjects: materials,
prestressing systems, loss of prestress, analysis and dimensioning of
sections in bending, shear bond and bearing stresses, deflections,
Layout of tendons in statically determinate beams, and finally compression and tension members. This part was first published in 1970,
then in combination with Part 3 as Volume II in 1978.
.
I wish to thank my colleges, my students and the practicing
engineers for their enthusiastic acceptance of the different parts
of this book. I also wish to apologize for any inconsistency they may
-2-

find in the terminology of the different parts. The unexpected speed
with which the book is in demand for reprinting gives me virtually
no time for revision ! I even think this edition needs some reshuffling and screening of the contents that will hopefully be made in
the next edition.
March 1980
Hilal

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Fundamentals of Reinforced and Prestressed Concrete

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