Područja betonskih mostova osjetljiva na eksplozivno djelovanje

master's thesis

• Title (english): Concrete Bridge Zones Vulnerable to Blast Loading
• Author: Ivana Mijadžiković
• Mentor: Marija Kušter Marić (mentor)
• Mentor: Vladimir Horvat (komentor)
• Committee member: Luka Mihanović (predsjednik povjerenstva)
• Committee member: Marija Kušter Marić (član povjerenstva)
• Committee member: Vladimir Horvat (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2020-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

U okviru diplomskog rada opisano je djelovanje eksplozije na konstrukciju. Analizirano je 6
lučnih mostova na Jadranskoj obali te su napravljeni proračuni potrebne količine eksploziva za
rušenje stupova tih mostova.
Potrebna količina eksploziva prikazana je u količini trinitrotoluena (TNT) i plastičnog eksploziva
(PEP). Proračuni su napravljeni i za kompletno rušenje stupova i za izbijanje betona (gdje je to
moguće).
Analiziran je i jedan novi most na kopnu, a to je most u okolici Slatine, projektiran prema
suvremenim normama. Napravljen je proračun rušenja mosta kako bi se vidjelo gdje je potrebno
postaviti eksploziv kako bi učinak bio najbolji. Napravljeni su proračuni za rušenje donjeg ustroja
(stupovi) i gornjeg ustroja (kolnička ploča i prednapeti nosači). Analizom se ustanovilo gdje je
najbolje postaviti eksploziv.
Na temelju proračuna provelo se rušenje armiranobetonskih ploča. Rušenje armiranobetonskih
ploča se usporedilo s rušenjem armiranobetonskih stupova koje se provelo 2019.g. i došlo se do
zaključka za koji element je trebalo više eksploziva i koji element je bilo zahtjevnije srušiti.

Abstract (english)

Within the diploma thesis, the effect of explosions on the structure is described. 6 arch bridges
on the Adriatic coast were analyzed and the necessary amount of explosion for the demolition of
the pillars of these bridges were calculated.
The required amount of explosive is shown in tirnitrotoluen and plastic explosive. Calculations
have been made for both complete demolition of columns and outbreak of concrete (where
possible).
A new bridge on the mainland was also analyzed, and that is the bridge in the vicinity of Slatina,
desegned according to the current codes. A calculation of the demolition of the bridge was made
to see where the explosives needed to be placed, with the best performance. Calculations were
made for the demolition of the lower structure (columns) and the upper structure (pavement
slab). The answer is given to the question where it is best to place the explosive.
Based on the calculation, the demolition of reinforced concrete slabs was carried out. The
demolition of reinforced concrete slabs was compared to the demolition of reinforced concrete
columns that took place in 2019. and it was concluded which element required more explosives
and which element was more difficult to demolish.

• Keywords: eksplozija; djelomično rušenje; potpuno rušenje; lučni mostovi; proračun potrebne količine eksploziva; most u okolici Slatine; rušenje armiranobetonske ploče
• Keywords (english): explosion; partial demolition; complete demolition; arch bridges; calculation of the required amount of explosives; bridge in the vicinity of Slatina; demolition of reinforced concrete slab
• Language: croatian
• URN:NBN: urn:nbn:hr:249:192471
• 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: 2021-02-01 11:48:06