Primjena ultrazučnih ispitivanja pri sanaciji AB stupova

master's thesis

• Title (english): Application of ultrasound tests in the reconstruction of RC columns
• Author: Vedran Zekušić
• Mentor: Ivan Duvnjak (mentor)
• Committee member: Mario Uroš (predsjednik povjerenstva)
• Committee member: Ivan Duvnjak (član povjerenstva)
• Committee member: Marko Bartolac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Engineering Mechanics); Zagreb
• Defense date and country: 2024-11-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Predmet rada je analiza primjene ultrazvučnih ispitivanja pri sanaciji armiranobetonskih stupova.
U prvom dijelu rada opisane su neke od najčešćih nerazornih ispitnih metoda s naglaskom na metode koje se zasnivaju na djelovanju valova, a posebno na metodu ispitivanja ultrazvukom. Također su opisani i parametri vala, vrste valova i njihova podjela prema načinu na kojem se oni šire kroz različiti medij.
U drugom dijelu rada provedena je studija slučaja sanacije mosta u kojoj je opisano postojeće stanje mosta, prethodno provedena ispitivanja i postupak sanacije jednog njegovog stupa reprofilacijom. U eksperimentalnom dijelu opisan je postupak ultrazvučnog ispitivanja na stupu i dana je analiza dobivenih rezultata prije i nakon sanacije.
Zaključno se dokazalo je li došlo i u kojoj mjeri do povećanja kvalitete betona ispitivanog stupa nakon sanacije.

Abstract (english)

The subject of the work is the analysis of the application of ultrasonic tests in the reconstruction of reinforced concrete columns.
In the first part of the paper, some of the most common non-destructive testing methods are described, with an emphasis on methods based on the action of waves, and especially on the ultrasonic testing method. Wave parameters, types of waves and their division according to the way they propagate through different media are also described.
In the second part of the work, a case study of the reconstruction of the bridge was carried out, in which the existing condition of the bridge was described, the previously conducted tests and the procedure for reconstructing one of its columns by reprofiling. In the experimental part, the procedure of ultrasonic testing on the column is described and the analysis of the results obtained before and after reconstruction is given.
In conclusion, it was proved whether and to what extent there was an increase in the quality of the concrete of the tested column after reconstruction.

• Keywords: nerazorne metode ispitivanja; valovi; most; sanacija; stup mosta; reprofilacija; ultrazvučno ispitivanje
• Keywords (english): nondestructive testing; waves; bridge; reconstruction; bridge column; reprofiling; ultrasonic test
• Language: croatian
• URN:NBN: urn:nbn:hr:237:304717
• Study programme: Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures; Course: Construction Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-12-16 10:15:38