Uporaba akustične tehnike na betonskih vzorcih

Abstract

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Data

Language:	Slovenian
Year of publishing:	2007
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[T. Bremec]
UDC:	691.32(043.2)
COBISS:	3863393
Views:	1979
Downloads:	546
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	The use od acoustic technique on concrete specimens
Secondary abstract:	This thesis focuses on the use of the acoustic technique (AT) on reinforced and plain concrete specimens. The aim of my research was to gain experience in early detection of crack formation on concrete structures. In the experiments, plain and reinforced beams were bended up to the failure and pull-out tests were carried out. Ribbed and plain reinforcements were used for the simulation of new and old concrete structures. The results of the aforementioned studies indicate that cracks and their locations can be detected much earlier by AT than by visual inspection. Through the experiments, the Kaiser effect was observed as well. All the experiments were performed in ZAG – Slovene National Building and Civil Engineering Institute, Ljubljana.
Secondary keywords:	acoustic technique;concrete;evaluation of structure condition;Kaiser effect;active cracks;damage localization;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Pages:	X, 79 f.
Type (ePrints):	thesis
Title (ePrints):	The Use of Acoustic Technique on Concrete Specimens
Keywords (ePrints):	akustična tehnika;beton;ocenjevanje stanja objektov;Kaiserjev efekt;aktivne razpoke;določanje lokacije razpok.
Keywords (ePrints, secondary language):	acoustic technique;concrete;evaluation of structure condition;Kaiser effect;active cracks;damage localization.
Abstract (ePrints):	V diplomski nalogi je predstavljena uporaba akustične tehnike na armiranih in nearmiranih betonskih vzorcih. Namen moje diplomske naloge je bil pridobiti čim več izkušenj za ocenjevanje stanja betonskih konstrukcij z uporabo akustične tehnike. Opravili smo upogibne preskuse na betonskih prizmah in izvleke armature iz betonskih kock. Za armiranje sta bili uporabljeni gladka in rebrasta armatura: gladka za simuliranje starejših, rebrasta pa za simuliranje novejših AB konstrukcij. Preskuse smo spremljali z akustično tehniko in na ta način zaznavali akustično aktivnost med obremenjevanjem vzorcev. Ugotovili smo, da lahko z akustično tehniko aktivne razpoke in njihovo lokacijo zaznamo prej kot pa s prostim očesom. Iz meritev smo opazili tudi pojav Kaiserjevega efekta. Vsi preskusi so bili opravljeni na Zavodu za gradbeništvo v Ljubljani.
Abstract (ePrints, secondary language):	This thesis focuses on the use of the acoustic technique (AT) on reinforced and plain concrete specimens. The aim of my research was to gain experience in early detection of crack formation on concrete structures. In the experiments, plain and reinforced beams were bended up to the failure and pull-out tests were carried out. Ribbed and plain reinforcements were used for the simulation of new and old concrete structures. The results of the aforementioned studies indicate that cracks and their locations can be detected much earlier by AT than by visual inspection. Through the experiments, the Kaiser effect was observed as well. All the experiments were performed in ZAG – Slovene National Building and Civil Engineering Institute, Ljubljana.
Keywords (ePrints, secondary language):	acoustic technique;concrete;evaluation of structure condition;Kaiser effect;active cracks;damage localization.
ID:	8308105