Djelovanje unutarnjih eksplozivnih naboja na rušenje potpora mosta

undergraduate thesis

• Author: Jure Alilović
• Mentor: Marija Kušter Marić (mentor)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2021-07-01, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

U okviru završnog rada izvršena je analiza rušenja armiranobetonskih mostova unutarnjim
eksplozivnim nabojem. Ispitan je utjecaj unutarnjeg eksplozivnog naboja na armiranobetonske
potporne stupove mosta. Podaci su dobiveni praktičnim rušenjem armiranobetonskih stupova na
vojnom vježbalištu “Cerovac“ u sklopu vježbe „rušenje elemenata“ koristeći proračunate
količine eksploziva za svaki element. Da bi se odredio stupanj oštećenosti armiranobetonskih
stupova izazvan eksplozivnim nabojem, prije i nakon rušenja primjenjivane su nerazorne
metode ispitivanja što uključuje vizualni pregled uzorka, ispitivanje tlačne čvrstoće betona
sklerometrom, ultrazvučno ispitivanje te ispitivanje električne otpornosti površine betona.
Dobiveni rezultati uspoređeni su s utjecajem vanjskog koncentriranog eksplozivnog naboja na
armiranobetonske stupove jednakih karakteristika.

Abstract (english)

In this baccalaureus graduate thesis, an analysis of the demolition of reinforced concrete bridges
with internal explosive charge was carried out. The influence of the internal explosive charge on
the reinforced concrete supporting piers of the bridge was investigated. The data were obtained
by practical demolition of reinforced concrete piers at the military training area "Cerovac" within
the exercise "Blasting of elements" using the calculated amounts of explosives for each element.
In order to determine the degree of damage to the reinforced concrete columns caused by the
explosive charge, non-destructive testing methods were used before and after the demolition,
including visual inspection of the sample, testing the compressive strength of the concrete using
a schmidt hammer, ultrasonic testing and testing the electrical resistance of the concrete. The
obtained results were compared with the influence of an external concentrated explosive charge
on reinforced concrete columns with the same properties.

• Keywords: AB stup; unutarnji eksplozivni naboj; eksplozivne tvari; nerazorna ispitivanja; potpora mosta
• Keywords (english): reinforced concrete pier; internal explosive charge; explosives; non-destructive testing; bridge support
• Language: croatian
• URN:NBN: urn:nbn:hr:249:583803
• Study programme: Title: Military Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2022-01-11 14:47:00