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The ESIS-Technical Committee 9 on Concrete was established in 1990 and has met seven times. A proposal was put to European and extra-European laboratories entitled ""Scale effects and transitional failure phenomena of reinforced concrete beams in flexure"" which lead to several positive responses. The central topic discussed by the committee was that of the minimum reinforcement in concrete members. The minimum amount of reinforcement is defined as that for which ""peak load at first concrete cracking"" and ""ultimate load after steel yielding"" are equal. In this way, any brittle behavi

Concrete beams --- Flexure. --- Testing.

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The in situ rehabilitation or upgrading of reinforced concrete members using bonded steel plates is an effective, convenient and economic method of improving structural performance. However, disadvantages inherent in the use of steel have stimulated research into the possibility of using fibre reinforced polymer (FRP) materials in its place, providing a non-corrosive, more versatile strengthening system.This book presents a detailed study of the flexural strengthening of reinforced and prestressed concrete members using fibre reinforces polymer composite plates. It is based to a large

Fiber reinforced plastics. --- Reinforced concrete construction. --- Engineering --- Civil Engineering --- Concrete beams. --- Buildings, Reinforced concrete. --- Fibrous composites. --- Fiber-reinforced concrete. --- Fibrous concrete --- FRC (Fiber-reinforced concrete) --- Reinforced concrete, Fiber --- Fibrous composites --- Reinforced concrete --- Fiber composites --- Fiber-reinforced composites --- Filament reinforced composites --- Reinforced fibrous composites --- Composite materials --- Reinforced concrete buildings --- Reinforced concrete construction --- Beams, Concrete --- Concrete girders --- Reinforced concrete beams --- Concrete products --- Girders

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This short book analyses the dynamic stability with respect to small perturbations, as well as the local damage of geometrically nonlinear elastic, spatially curved, open section beams with axial precompression. Transient waves, which are the surfaces of strong discontinuity and wherein the stress and strain fields experience discontinuities, are used as small perturbations; in so doing the discontinuities are considered to be of small magnitude. Such waves are initiated during low-velocity impacts upon thin-walled beams. The theory of discontinuities and the method of ray expansions which allow one to find the desired fields behind the fronts of the transient waves in terms of discontinuities in time-derivatives of the values to be found, are used as the methods of solution for short-time dynamic processes. The example of using the ray expansions for analyzing the impact response of spatially curved thin-walled beams of open profile is demonstrated by solving the problem about the normal impact of an elastic hemispherical-nosed rod upon an elastic arch representing itself a channel-beam curved along an arc of the circumference. The influence of the initial stresses on the dynamic fields has been investigated.

Prestressed concrete beams -- Testing. --- Prestressed concrete beams. --- Chemical & Materials Engineering --- Engineering & Applied Sciences --- Applied Mathematics --- Materials Science --- Structural stability. --- Structural dynamics. --- Building dynamics --- Dynamics, Structural --- Structural vibration --- Stability of structures --- Structures, Stability of --- Engineering. --- Computer mathematics. --- Mechanics. --- Continuum mechanics. --- Civil engineering. --- Continuum Mechanics and Mechanics of Materials. --- Computational Science and Engineering. --- Civil Engineering. --- Engineering --- Public works --- Mechanics of continua --- Elasticity --- Mechanics, Analytic --- Field theory (Physics) --- Classical mechanics --- Newtonian mechanics --- Physics --- Dynamics --- Quantum theory --- Computer mathematics --- Discrete mathematics --- Electronic data processing --- Construction --- Industrial arts --- Technology --- Mathematics --- Strains and stresses --- Structural analysis (Engineering) --- Stability --- Safety factor in engineering --- Structural failures --- Mechanics, Applied. --- Computer science. --- Solid Mechanics. --- Classical Mechanics. --- Informatics --- Science --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics