000012878 001__ 12878
000012878 005__ 20160920162653.0
000012878 04107 $$aeng
000012878 046__ $$k2016-09-05
000012878 100__ $$aFantilli, A.P.
000012878 24500 $$aThe assessment of concrete strength of existing Italian infrastructures

000012878 24630 $$n6.$$pInsights and Innovations in Structural Engineering, Mechanics and Computation
000012878 260__ $$bTaylor and Francis Group, London, UK
000012878 506__ $$arestricted
000012878 520__ $$2eng$$aTo design retrofit and/or conservation of existing reinforced concrete structures, the assessment of concrete strength is generally required. The current methodologies consist of Destructive Tests (DT), based on uniaxial compression tests performed on concrete cores extracted from a structure, and/or Non-Destructive Tests (NDT), in which the strength of concrete is indirectly estimated by measuring other physical properties (like the ultrasonic pulse velocity). Nevertheless, in several situations (like, e.g., the seismic vulnerability assessment of long-term service infrastructures), the traditional DT and NDT cannot be used. Hence, a new simplified approach is described in this paper. It can be applied to infrastructures located in a precise geographical area, where the average strength of concrete (and the relative percentiles) is a function of the year of construction. Such relationship is summarized by the so-called “strength curves”, statistically computed from a huge database stored in the Department of Structural and Geotechnical Engineering of Politecnico di Torino (Italy). Referring to a concrete dam and stadium built during the 1950s and 1960s in Aosta and in Turin area, respectively, the strength predicted by these curves is in good agreements with the measurements of DT.

000012878 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000012878 653__ $$a

000012878 7112_ $$aSixth International Conference on Structural Engineering, Mechanics and Computation$$cCape Town, South Africa$$d2016-09-05 / 2016-09-07$$gSEMC2016
000012878 720__ $$aFantilli, A.P.$$iFrigo, B.$$iChiaia, B.
000012878 8560_ $$ffischerc@itam.cas.cz
000012878 8564_ $$s1788572$$uhttps://invenio.itam.cas.cz/record/12878/files/326.pdf$$yOriginal version of the author's contribution as presented on CD, 326.pdf.
000012878 962__ $$r12552
000012878 980__ $$aPAPER