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Mechanical Behavior of Lightweight Concrete Confined by Different Types of Lateral Reinforcement.
Manrique, M. A.; Bertero, V. V.; Popov, E. P.
National Science Foundation, Washington, DC., May 1979, 123 p.
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Results are given of an experimental study to evaluate the different aspects of the behavior of lightweight concrete. The study focuses on the behavior of confined lightweight concrete when subjected to axial, monotonic loading. The effects on confined concrete of the following parameters were considered: (a) concrete cover; (b) longitudina reinforcement; (c) lateral reinforcement arrangement. A total of 30 confined and unconfined specimens were tested. The effect of the mentioned parameters are evaluated; subsequently, the experimental results are compared with the results of a similar investigation carried out on norma weight concrete. An analytical stress-strain relationship for longitudinally reinforced confined lightweight concrete is presented. Practical design implications of the present study are presented.
Seismic design; Earthquake resistant structures; Stress strain diagrams; Reinforced concrete; Dynamic response; Earthquake engineering; Lightweight concretes; Concrete construction; Mechanical properties