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

master's thesis

• Title (english): Influence of the Cross-section of a Reinforced Concrete Column on the Damage Caused by an Internal Explosive Charge
• Author: Jure Alilović
• 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 okviru ovog diplomskog rada ispitan je utjecaj geometrije na oštećenja i promjenu svojstava
armiranobetonskih stupova prilikom djelovanja unutarnjeg eksplozivnog naboja. Za potrebe
eksperimentalnog istraživanja analizirana su dva poprečna presjeka stupa; kvadratni i pravokutni,
sa približno jednakom količinom armature i betona.
Ispitan je učinak unutarnjeg eksplozivnog naboja na armiranobetonske stupove različitih
geometrija, a zatim je uspoređen sa stupovima iste geometrije na koje je postavljen vanjski
eksplozivni naboj. Da bi se dobili podaci provedeno je rušenje na vv „Cerovac“ u sklopu vježbe
rušenje elemenata i materijala.
Prije i nakon rušenja koristile su se nerazorne metode mjerenja koje uključuju: vizualni pregled,
ultrazvuk, određivanje tlačne čvrstoće i električne otpornosti armiranobetonskog stupa. Na
temelju navedenih metoda utvrđena je ujednačenost kvalitete materijala prije i nakon rušenja.
Na kraju je donesen zaključak o utjecaju poprečnog presjeka elementa i vrsti eksplozivnog
djelovanja na učinke rušenja armiranobetonskih stupova.

Abstract (english)

In this master’s thesis, the influence of geometry on damage and change of properties of
reinforced concrete columns during the action of internal explosive charge was investigated. For
the purposes of experimental research, two cross-sections of columns were analyzed; square and
rectangular, with approximately the same amount of reinforcement and concrete.
The effect of internal explosive charge on reinforced concrete columns of different geometries
was examined and then compared with columns of the same geometry on which the external
explosive charge was placed. The data were obtained by practical demolition of reinforced
concrete piers at the military training area "Cerovac" within the exercise "Blasting of elements".
Before and after the demolition, non-destructive measurement methods were used, including:
visual inspection, ultrasound, determination of compressive strength and electrical resistance of
the reinforced concrete column. Based on these methods, the uniformity of material quality
before and after demolition was determined.
Finally, a conclusion was drawn about the influence of the cross-section of the element and the
type of explosive charge on reinforced concrete columns.

• Keywords: AB stup; unutarnji eksplozivni naboj; vanjski eksplozivni naboj; eksploziv; nerazorna ispitivanja
• Keywords (english): reinforced concrete pier; internal explosive charge; concentrated explosive charge; explosives; non-destructive testing
• Language: croatian
• URN:NBN: urn:nbn:hr:249:318112
• 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: 2023-02-03 10:30:02