Utjecaj poprečnog presjeka armiranobetonskog stupa na oštećenja izazvanih djelovanjem kumulativnog eksplozivnog naboja

master's thesis

• Title (english): Influence of the Cross-section of a Reinforced Concrete Column on the Damage Caused by a Cumulative Explosive Charge
• Author: Ivan Škoko Gavranović
• Mentor: Marija Kušter Marić (mentor)
• Mentor: Mladen Fusić (komentor)
• Committee member: Tatjana Gazivoda Kraljević (predsjednik povjerenstva)
• Committee member: Marija Kušter Marić (član povjerenstva)
• Committee member: Mladen Fusić (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2022-07-07, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

U ovom diplomskom radu su prikazani tipovi eksploziva, načini na koje se postavljaju i postupak
pripreme eksplozivnih naboja za provedbu rušenja armirano betonskih stupova kvadratnog i
pravokutnog poprečnog presjeka, zatim je provedena analiza rušenja armirano betonskih stupova
te su uspoređeni rezultati stupova kvadratnog i pravokutnog poprečnog presjeka. Kroz ispitivanje
učinka različitih vrsta eksplozivnih naboja na armirano betonske stupove uspoređeni su
kumulativni i vanjski eksplozivni naboj. Ispitivanja su provedena u istim vremenskim uvjetima,
što podrazumijeva tlak, temperaturu i utjecaj atmosferilija. Učinak eksplozivnih naboja je
utvrđen uz pomoć nerazornih metoda ispitivanja što uključuje vizualni pregled, određivanje
tlačne čvrstoće, određivanje brzine ultrazvuka i ispitivanje električne otpornosti. Nerazorne
metode ispitivanja su provedene na svim armirano betonskim stupovima prije i nakon detonacije
eksplozivnih naboja, a lokacija provedbe je bila vojni poligon Cerovac.

Abstract (english)

This master's thesis presents various types of explosives, the ways in which they are mounted
and the procedure for preparing the explosive charges for the demolition of reinforced concrete
piers, followed by the analysis of the demolition of the reinforced concrete piers and the
comparison of the results of the piers of square and rectangular cross sections. Cumulative and
external explosive charges were compared by examining the effect of different types of
explosive charges on reinforced concrete piers. The tests were conducted in the same weather
conditions, which implies pressure, temperature and the influence of the atmosphere. The effect
of explosive charges was determined using non-destructive testing methods which include visual
inspection, determination of compressive strength, determination of ultrasonic velocity and
electrical resistance testing. Non-destructive testing methods were conducted on all reinforced
concrete piers before and after the detonation of the explosive charges, and the location of the
testing was the military training ground Cerovac.

• Keywords: armirano betonski stup; eksplozivni naboj; nerazorna ispitivanja; kumulativni rezač
• Keywords (english): reinforced concrete piers; explosive charges; non-destructive testing methods; cumulative cutter
• Language: croatian
• URN:NBN: urn:nbn:hr:249:155450
• Study programme: Title: Military Engineering; Study programme type: university; Study level: graduate; Academic / professional title: MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA (MAGISTAR/MAGISTRA INŽENJER/INŽENJERKA VOJNOG INŽENJERSTVA)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-02-07 14:51:35