Projektiranje lukobrana na pilotima

master's thesis

• Title (english): Design of breakwaters on piles
• Author: Juraj Drašković
• Mentor: Dalibor Carević (mentor)
• Committee member: Damir Bekić (predsjednik povjerenstva)
• Committee member: Dalibor Carević (član povjerenstva)
• Committee member: Goran Lončar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Water Research); Zagreb
• Defense date and country: 2019-09-19, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering; Hydrotechnology

Abstract

U ovom radu izvršena je optimizacija rasporeda pilota prilikom projektiranja ekološkog lukobrana na pilotima. Lukobrani su izloženi opterećenjima vjetra i valova, te je prije svega potrebno odrediti mjerodavne sile za dimenzioniranje pilota. Sile od vjetra određene su tako da se preko Morisonove jednadžbe odredila dinamička sila vjetra koja djeluje na plovilo, te se rješavanjem poligona sila odredila vrijednost sile vjetra koja djeluje na m' lukobrana. Sile od valova određene su izrazima za proračun sile tlaka na vertikalni poluuronjeni ekran lukobrana, za zadane značajne valne visine Hs. Modeli lukobrana izvedeni su u softverskom paketu GEO5, gdje se cijela konstrukcija diskretizirala na više segmenata, od kojih se svaki sastoji od četiri pilota. Analizirale su se razne varijacije modela koje uključuju promjene osnog razmaka pilota, dubine mora te promjera pilota. Ukupno je izrađeno 27 modela, a za svaki model je izračunata potrebna armatura i provjerena tlačna otpornost pilota.Troškovnikom su određene cijene pilota uzimajući u obzir cijenu betona i armature potrebne za njihovu izvedbu, te su pomoću više grafikona prikazane varijacije u cijeni izvedbe pilota mijenjanjem određenog parametra.

Abstract (english)

In this research, an optimization of pile layout during the designing of an ecological breakwater on piles has been performed. Breakwaters are exposed to wind and wave loads, thus it’s necessary to determine the relevant forces needed for the sizing of the piles. Morisons equation was used for determination of the dynamic wind force, whereas the values of wind acting per m' of breakwater were determined through the solving of polygon force. Expressions for the calculation of pressure force on a vertical semi-submerged breakwater screen, for given significant wave heights were used for the determination of wave forces. The breakwater models were created with the usage of GEO5 software package. There, the entire structure was discredited into several segments, each consisting of four piles. Various model variations were analysed, including changes in pile axial spacing, sea depth, and pile diameter. A total of 27 models were made and th required reinforcement and compressive strength of the pilot were calculated for each model. Pile prices are based on the prices of concrete and reinforcement required for their construction, as suggested in the cost estimate. Variations in pile prices caused by changes in certain parameters are displayed in multiple charts.

• Keywords: optimizacija rasporeda pilota; lukobran; valovi; vjetar
• Keywords (english): optimization of pilot schedules; breakwater; waves; wind
• Language: croatian
• URN:NBN: urn:nbn:hr:237:679765
• 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: Hydraulic Engineering; 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: 2019-11-19 08:46:57