Evaluation of the uncertainty related to concrete compressive strength is one of the important aspects in the seismic assessment of an existing RC building. This works aims to characterize the compressive concrete strength based on both in-situ destructive and non-destructive test measurements. A large database of the (destructive) core tests and SONREB (hammer rebound and ultrasonic pulse measurements) non-destructive test results for the same structural elements has been gathered from different existing RC buildings mainly located in Campania region, Italy and constructed in the last century between the decades 30’ and 90’. A regression model is employed in order to derive predictive expressions for calculating the compressive concrete strength based on the ultrasonic test measurements. The paper further investigates the quantification in terms of relative weights of the concrete strength based on ultrasonic test results for seismic performance assessment of existing RC buildings. The calculated relative weights for ultrasonic tests are compared with the NTC 2018 code recommended relative weights of 1 and 1/3 for destructive and non-destructive tests, relatively.

Assessment of concrete compressive strength using non-destructive test measurements / Miano, Andrea; Jalayer, Fatemeh; Prota, Andrea. - (2019), pp. 128-137. (Intervento presentato al convegno L'Ingegneria Sismica in Italia tenutosi a Ascoli Piceno nel 15-19 settembre 2019).

Assessment of concrete compressive strength using non-destructive test measurements

Andrea Miano;Fatemeh Jalayer;Andrea Prota
2019

Abstract

Evaluation of the uncertainty related to concrete compressive strength is one of the important aspects in the seismic assessment of an existing RC building. This works aims to characterize the compressive concrete strength based on both in-situ destructive and non-destructive test measurements. A large database of the (destructive) core tests and SONREB (hammer rebound and ultrasonic pulse measurements) non-destructive test results for the same structural elements has been gathered from different existing RC buildings mainly located in Campania region, Italy and constructed in the last century between the decades 30’ and 90’. A regression model is employed in order to derive predictive expressions for calculating the compressive concrete strength based on the ultrasonic test measurements. The paper further investigates the quantification in terms of relative weights of the concrete strength based on ultrasonic test results for seismic performance assessment of existing RC buildings. The calculated relative weights for ultrasonic tests are compared with the NTC 2018 code recommended relative weights of 1 and 1/3 for destructive and non-destructive tests, relatively.
2019
978-88-3339-256-1
Assessment of concrete compressive strength using non-destructive test measurements / Miano, Andrea; Jalayer, Fatemeh; Prota, Andrea. - (2019), pp. 128-137. (Intervento presentato al convegno L'Ingegneria Sismica in Italia tenutosi a Ascoli Piceno nel 15-19 settembre 2019).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/759863
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