Djelovanje eksplozije na stupove mosta

master's thesis

• Title (english): Explosive action on bridge piers
• Author: Danijel Marić
• Mentor: Marija Kušter Marić (mentor)
• Committee member: Marija Kušter Marić (predsjednik povjerenstva)
• Committee member: Ivan Lukačević (član povjerenstva)
• Committee member: Vlatka Rajčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Structures); Zagreb
• Defense date and country: 2021-02-18, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Supporting Structures

Abstract

Cilj ovog diplomskog rada je obraditi djelovanje eksplozije na stupove mosta kako bi se ispitala nosivost stupova nakon utjecaja djelomičnog i potpunog razaranja stupova eksplozijom. Uvodni dio baziran je na eksplozije općenito, povijest eksplozivnih tvari te je dan pregled dosadašnjih istraživanja. U sklopu navedenog dan je primjer eksperimentalnog djelovanja eksplozije na umanjenim modelima stupova Šibenskog mosta koji su izvedeni na vojnom poligonu Cerovac. Glavni dio rada posvećen je analizi triju modela oštećenja stupova s različitim površinama oštećenja. Navedena analiza je izrađena u računalnom programu Sofistik metodom konačnih elemenata (FEM), a obuhvaća provjeru naprezanja u betonu i armaturi stupova kao i pomake stupova. Provjera je izvršena u karakterističnim točkama odnosno na dnu, sredini i vrhu stupova, nakon oštećenja eksplozijom pod djelovanjem konstantne vertikalne sile i horizontalne sile koja se povećava do vrijednosti koju numerički model stupa može preuzeti prije otkazivanja.

Abstract (english)

The aim of this thesis is to analyze the effect of the explosion on the bridge piers in order to examine the load-bearing capacity of the piers after the impact of the partial and complete destruction of the pier by the explosion. The introduction is based on explosions in general, the history of explosives and an overview of previous research is given. As part of the above, an examle of the experimental effect of the explosion on scale models of the piers of the Šibenik Bridge, which were performed at the military training ground Cerovac, is given. The main part of the paper is devoted to the analysis of three models of pier damage with a different damage cross-section. This anaysis was performed in the sotware Sofistik, using the finite element method (FEM), and includes the verification of stresses in concrete and column reinforcement, as well as column displacements. The check was performed at characteristic points, ie at the bottom, middle and top of the columns, after damage by an explosion under the action of constant vertical and horizontal force, which increases to the value that the numerical model of the column can take before failure.

• Keywords: eksplozija; nosivost stupova; Šibenski most; Sofistik; oštećenja
• Keywords (english): explosion; load-bearing capacity of piers; Šibenik Bridge; Sofistik; damage
• Language: croatian
• URN:NBN: urn:nbn:hr:237:129322
• 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: Closed access
• Created on: 2023-06-12 08:07:15