Influencia de los ciclos térmicos en el comportamiento mecánico del hormigón de estructuras termoactivadas

Abstract

This article examines the behavior of concrete when subjected
to thermal cycles, thus, imitating the process of thermal
loading and unloading in thermo-activated structures,
throughout their in-use period. Cylindrical specimens have
been performed to study the behavior to compression and
tensile strength, and prismatic specimens were performed
to flexural test strength. The analysis of results shows that
in thermo-active structures subjected to thermal cycles,
temperature variation influences on the evolution of concrete
mechanical properties, not staying constant over time. Likewise,
a greater amount of reinforcement to withstand compression is
necessary, as well as the reformulation of calculation methods
outlined in the concrete standard EHE, so that analysis of this
type of structures can be performed on the safe side, regarding
both stresses and strains.