Viscoelasticity: A new perspective on correlation between concrete creep and damping: Fid-Bau Portal

Viscoelasticity: A new perspective on correlation between concrete creep and damping

Mei, Shengqi / Wang, Yuanfeng

Highlights • Short-term creep of concrete under different loading rates were tested. • The influence of hysteretic frequency on concrete material damping were analyzed. • A simplified conversion formula of concrete creep and damping was proposed based on viscoelastic theory.

Abstract Concrete creep and damping are related to reinforced concrete structural static and dynamic performance respectively. Comprehensive investigation of the fundamental behavior of concrete under dynamic and static loading is quite significant to material science of concrete. However, over more than a hundred years since concrete creep was found, it was seldom studied jointly with concrete damping. This paper analyzed the correlation between concrete damping and creep from the perspective of viscoelasticity. Firstly, concrete creep and damping tests under different loading rates were conducted to prove that the damping and creep characteristics of concrete are related to viscoelasticity of concrete. Secondly, in terms of theoretical calculation, a new conversion formula of concrete creep and damping was proposed based on viscoelastic theory. Comparison with experimental results shows that the proposed conversion formula is applicable to concrete.