magistrsko delo na študijskem programu 2. stopnje UM
Tomaž Motoh (Author), Boštjan Kovačič (Mentor), Matjaž Skrinar (Co-mentor)

Abstract

Poznavanje dejanskega odziva gradbenih konstrukcij na obremenitve je pomemben del pri ocenjevanju stanja in varnosti konstrukcij v njihovi eksploatacijski dobi. Pri objektih, ki so izpostavljeni dinamičnim obremenitvam prometa (npr. mostovi), je potrebno poznati njihovo obnašanje pri cikličnih vplivih. Obstaja vrsta različnih metod za določanje dinamičnih lastnosti objektov, vse bolj pa, hkratno z razvojem opreme, v uporabo prihajajo geodetske metode. Z geodetskimi instrumenti ne merimo več samo statičnih ali zelo počasnih premikov, temveč tudi hitre, dinamične pomike. Robotski tahimeter ali robotska totalna postaja (angl. Robotic Total Station – RTS) je nova generacija geodetskih instrumentov, ki avtomatizirano zajema podatke o spremembi dolžine, horizontalnega kota in vertikalnega kota med robotsko postajo in tarčo v gibanju. V delu so na kratko predstavljeni primeri uporabe metode RTS na premostitvenih konstrukcijah drugih avtorjev. Podrobneje je opisan algoritem za določanje srednje amplitude harmoničnega nihanja in metodi spektralne analize vzorčenih podatkov. Sledi kratka predstavitev uporabljene robotske postaje ter obsežnejši eksperimentalni del, ki je razdeljen na tri dele: laboratorijski test metode na lameli, analiza dinamičnih odzivov mostu za pešce in analiza dinamičnih lastnosti železniškega mostu.

Keywords

gradbeništvo;geodezija;dinamični odziv konstrukcije;meritve;analiza;magistrske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UM FGPA - Faculty of Civil Engineering, Transportation Engineering and Architecture
Publisher: [T. Motoh]
UDC: 528.02:624.21.042.8(043.2)
COBISS: 21231382 Link will open in a new window
Views: 964
Downloads: 94
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Other data

Secondary language: English
Secondary title: The possibility of measuring dynamic response of structures using non-contact geodetic methods
Secondary abstract: Being familiar with the actual response of civil engineering structures to impact of loads is an important part of assessing the condition and safety of structures in their exploitation period. Structures that are exposed to dynamic loads of traffic (e.g. bridges) require the knowledge of their behavior in case of cyclical effects. There are number of different methods for determining the dynamic parameters of structures. More and more, simultaneously with the development of instruments, geodetic methods are employed. Surveying instruments used to measure static or very slow movements but nowadays they allow quick, dynamic observations. Robotic Tachymeter or Robotic Total Station (RTS) is the new generation of geodetic theodolites that automatically captures data like change of length, horizontal angle and vertical angle between the RTS and the reflector or target in motion. This paper briefly presents the examples of RTS dynamic response measurements of bridges by other authors. The algorithm for determining the mean amplitude of harmonic oscillation and the method of spectral analysis of the sampled data are described in detail. This is followed by a brief presentation of the robot total station used and a larger experimental part, divided into three parts: the laboratory test of the method on the lamellae, the analysis of the dynamic responses of the pedestrian footbridge and the analysis of the dynamic properties of the railway bridge.
Secondary keywords: civil engineering;dynamic response of the structure;observations;analysis;
URN: URN:SI:UM:
Type (COBISS): Master's thesis/paper
Thesis comment: Univ. v Mariboru, Fak. za gradbeništvo, prometno inženirstvo in arhitekturo, Gradbeništvo
Pages: IX, 69 str.
ID: 10884865