Experimental Verification of Long-Term Behaviour of Concrete Structures

Abstract

Long-term deformations of the concrete are important for determination of behaviour of concrete structures. For prediction of the long-term deformations, rheological models are used. The models are usually derived from measurements on laboratory specimens. There are only few measurements performed on real structures. The objective of the realized experimental program is to compare predicted values of strains and strains measured on a real structure. Vibrating wire strain gauges have been installed in two columns in underground floors of eight-storey office building. Target of this paper is evaluation of measurement from the initial period (approx. 12 months). Measured values have been compared with results of first calculations and with values measured on laboratory specimens placed at the construction site.