Search

U ovom diplomskom radu biti će obrađene ne destruktivne metode ispitivanja nosivih konstrukcija. Napravljena će biti usporedba između destruktivnih i ne destruktivnih metoda, te opisan proces tehničke dijagnoze na konstrukciji. Pojasniti će se trajnost betonske konstrukcije koja se mora ostvariti odgovarajućim planiranjem, projektiranjem i dimenzioniranjem, ali i također i odabirom građevnih proizvoda i izvođenjem radova. Tema rada je ne destruktivna Impact-echo metoda. Ista je teoretski obrađena, te su objašnjene teoretske postavke na temelju kojih funkcionira uređaj i način ispitivanja. Proračunima će biti dokazana ispravnost metode i svih njezinih segmenata. U praktičnom dijelu zadatka uređajem će se ispitati oštećeni most, te će se dijagnosticirati oštećenja, lokacija kao i težina oštećenja. In this master work, will be discussed non - destructive methods of testing load - bearing structures. A comparison between destructive and non-destructive methods will be made, and the process of technical diagnosis on the structure will be described. The durability of the concrete structure will be clarified, which must be achieved by appropriate planning, design and dimensioning, but also by the selection of construction products and execution of works. The topic of the this master work is the non-destructive Impact-echo method. It is theoretically processed, and the theoretical settings on the basis of which the device operates and the test method are explained. The calculations will prove the correctness of the method and all its segments.

The subject of this paper is a research of child’ s cot quality during fatigue test and influence of dynamic loading on construction of child’ s cot. Research was not carried out before. The aim of an research was to determine the influence of acting force time on displacement of child’ s cot and wood species, and type of construction of children's cots on rigidity and durability during fatigue test. The modified European standard EN 716 was used in the research in such a way that a displacement, normally measured by the standard, was measured here. The research was carried out on three groups of samples consisting of six children’ s cots made of beech, pine and fir. The research results clearly show that the samples made of beech had greatest rigidity, the samples made of pine had middle rigidity while the samples made of fir had lowest rigidity. The research hypothesis that greater duration of loading will produce greater deformations of child’ s cot was not confirmed.