Investigation of concrete compressive strength of existing buildings depending on number of core samples

Concrete strength is one of the most critical parameters that affect the seismic performance of reinforced concrete constructions. One of the common methods to determine the concrete compressive strength is to take core samples from structural members. However, the number of taken core samples-based...

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Main Authors: Hayri Baytan Özmen, Bayam Tanık Çaycı, Mehmet İnel
Format: Article
Language:English
Published: Pamukkale University 2019-11-01
Series:Pamukkale University Journal of Engineering Sciences
Subjects:
Online Access:https://dergipark.org.tr/tr/pub/pajes/issue/50276/649964
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author Hayri Baytan Özmen
Bayam Tanık Çaycı
Mehmet İnel
author_facet Hayri Baytan Özmen
Bayam Tanık Çaycı
Mehmet İnel
author_sort Hayri Baytan Özmen
collection DOAJ
description Concrete strength is one of the most critical parameters that affect the seismic performance of reinforced concrete constructions. One of the common methods to determine the concrete compressive strength is to take core samples from structural members. However, the number of taken core samples-based on the size of the construction–is important for reliable results, especially in old constructions. This study aims to investigate the possibility of determination of the concrete compressive strength values of existing buildings using lower number of core samples than the required number of cores. For this purpose, experimental results of core samples taken from 148 slightly or moderately damaged reinforced concrete buildings during 2011 Simav Earthquake. Concrete compressive strength values based on 15 different sets obtained by using 50% and 70% of the core samples of each building are compared. The compressive strength values calculated from the sets were compared with the average compressive strengths of all core samples to investigate accuracy of estimation of compressive strength with using lower number of core samples. The study also investigates whether there is a significant difference between samples taken from a single story (i.e. ground story) compared to the whole building. It is concluded that the use of %50 of the required core samples is possible for the rapid assessment or large-scale field investigation studies when the obtained concrete strength is equal to or greater than 8 MPa. However, additional core samples to complete 70% of the code required samples are required for concrete strength values lower than 8 MPa.
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spelling doaj.art-83a53c37a2054fd2bb09e2becbc972152023-02-15T16:12:06ZengPamukkale UniversityPamukkale University Journal of Engineering Sciences1300-70092147-58812019-11-01256621626218Investigation of concrete compressive strength of existing buildings depending on number of core samplesHayri Baytan ÖzmenBayam Tanık ÇaycıMehmet İnelConcrete strength is one of the most critical parameters that affect the seismic performance of reinforced concrete constructions. One of the common methods to determine the concrete compressive strength is to take core samples from structural members. However, the number of taken core samples-based on the size of the construction–is important for reliable results, especially in old constructions. This study aims to investigate the possibility of determination of the concrete compressive strength values of existing buildings using lower number of core samples than the required number of cores. For this purpose, experimental results of core samples taken from 148 slightly or moderately damaged reinforced concrete buildings during 2011 Simav Earthquake. Concrete compressive strength values based on 15 different sets obtained by using 50% and 70% of the core samples of each building are compared. The compressive strength values calculated from the sets were compared with the average compressive strengths of all core samples to investigate accuracy of estimation of compressive strength with using lower number of core samples. The study also investigates whether there is a significant difference between samples taken from a single story (i.e. ground story) compared to the whole building. It is concluded that the use of %50 of the required core samples is possible for the rapid assessment or large-scale field investigation studies when the obtained concrete strength is equal to or greater than 8 MPa. However, additional core samples to complete 70% of the code required samples are required for concrete strength values lower than 8 MPa.https://dergipark.org.tr/tr/pub/pajes/issue/50276/649964concrete compressive strengthcorereinforced concrete buildingbeton basınç dayanımıkarotbetonarme binalar
spellingShingle Hayri Baytan Özmen
Bayam Tanık Çaycı
Mehmet İnel
Investigation of concrete compressive strength of existing buildings depending on number of core samples
Pamukkale University Journal of Engineering Sciences
concrete compressive strength
core
reinforced concrete building
beton basınç dayanımı
karot
betonarme binalar
title Investigation of concrete compressive strength of existing buildings depending on number of core samples
title_full Investigation of concrete compressive strength of existing buildings depending on number of core samples
title_fullStr Investigation of concrete compressive strength of existing buildings depending on number of core samples
title_full_unstemmed Investigation of concrete compressive strength of existing buildings depending on number of core samples
title_short Investigation of concrete compressive strength of existing buildings depending on number of core samples
title_sort investigation of concrete compressive strength of existing buildings depending on number of core samples
topic concrete compressive strength
core
reinforced concrete building
beton basınç dayanımı
karot
betonarme binalar
url https://dergipark.org.tr/tr/pub/pajes/issue/50276/649964
work_keys_str_mv AT hayribaytanozmen investigationofconcretecompressivestrengthofexistingbuildingsdependingonnumberofcoresamples
AT bayamtanıkcaycı investigationofconcretecompressivestrengthofexistingbuildingsdependingonnumberofcoresamples
AT mehmetinel investigationofconcretecompressivestrengthofexistingbuildingsdependingonnumberofcoresamples