Prestressed Concrete Design, Second Edition
Prestressed concrete is widely used in the construction industry in buildings, bridges, and other structures. The new edition of this book provides up-to-date guidance on the detailed design of prestressed concrete structures according to the provisions of the latest preliminary version of Eurocode 2: Design of Concrete Structures, DD ENV 1992-1-1: 1992. The emphasis throughout is on design - the problem of providing a structure to fulfil a given purpose - but fundamental concepts are also described in detail. All major topics are dealt with, including prestressed flat slabs, an important and growing application in the design of buildings. The text is illustrated throughout with worked examples and problems for further study. Examples are given of computer spreadsheets for typical design calculations. Prestressed Concrete Design will be a valuable guide to practising engineers, students and research workers.
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1 Basic principles
2 Properties of materials
3 Limit state design
4 Loss of prestress force
5 Analysis of sections
8 Prestressing systems and anchorages
9 Design of members
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analysis anchorage draw-in applied load assumed beam in Example bending moment bond centroid columns composite section compressive stress Concrete grade concrete section concrete stress cracked members creep creep deformations critical perimeter curvature deflection duct eccentricity effect elastic shortening Equation Example 4.1 factor of safety Figure friction given in EC2 imposed load Inequalities initial prestress force kN/m limit state design linear transformation loss of prestress maximum midspan modulus of elasticity N/mm neutral axis partial factors post-tensioned concrete post-tensioned members prestressed concrete members prestressed concrete structures prestressing steel prestressing tendons pretensioned members quasi-permanent load reinforced concrete secondary moments section properties serviceability limit shear force shear reinforcement shear resistance shown in Fig shrinkage simply supported soffit span statically indeterminate steel stress strands stress distribution stress-strain curve Table tendon profile tensile stresses tension total design load transfer ultimate limit ultimate strength unbonded tendons uncracked uniform load untensioned reinforcement vertical wires
Page xv - Structural use of concrete ; and other material from British Standards is reproduced by kind permission of the British Standards Institution, Linford Wood, Milton Keynes, MK14 6LE, from whom complete copies can be obtained. Table 25.1 is reproduced by permission of the American Society of Civil Engineers.