AHA-BUCH

A Comparative Study of Cyclic Constitutive Models for Concrete

Hysteretic characteristics of concrete Monotonic and cyclic loading Nonlinear finite element analysis
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ISBN-13:
9783659244094
Einband:
Paperback
Seiten:
280
Autor:
Farhad Aslani
Gewicht:
428 g
Format:
221x149x20 mm
Sprache:
Englisch
Beschreibung:

Experimental programs in laboratories give real results to identify nonlinear behavior of reinforced concrete structures but they are limited to knowledge of particular cases under restricted structural dimensions, sizes, shapes, loading and boundary conditions but the computational simulation approach has no limit to its application. Constitutive models are developed to simulate the dynamic nonlinear response of concrete and steel reinforcement subjected to cyclic loading varying randomly in magnitude. The behavior of structural concrete under monotonic loading is affected by important material aspects including cracking, crushing, tension stiffening, compression softening and bond slip. Reversed cyclic loading introduces further complexities such as stiffness degradation in concrete and the Bauschinger effect in reinforcing steel. In this study the validity and reliability of some proposed constitutive models for concrete considering general loading (i.e. cyclic, monotonic, partial loading) are evaluated. Also, a hysteretic model is developed for unconfined concrete with the intention of providing efficient modeling for the structural behavior of concrete in seismic region.

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