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Mechanical Characteristics of Concrete Reinforced with Waste Polypropylene Face Masks : Undergraduate Thesis
No full textS obzirom na trenutnu situaciju s pandemijom Covid -19 koja je uz mnoge zdravstvene probleme donijela i probleme rješavanja medicinskog otpada koji se sve više nakuplja, u ovom radu se koristio taj isti otpad kao dodatak mješavini betona. Jednokratne zaštitne maske za lice zajedno s njihovim gumicama, dodane su betonu u količini 0.50% i 0.25% volumena betona. Na uzorcima betonskih mješavina ispitana je obradivost u svježem stanju, te tlačna čvrstoća i dinamički modul elastičnosti kod 28-dnevne starosti uzoraka. Dobiveni rezultati uspoređeni su s rezultatima prijašnjih ispitivanja.Due to current situation with Covid-19 pandemic which has caused many health problems, it also contributed to the problems of medical waste recycling, which is gathered more and more, in this paper there was used that same waste as addition to the mixture of concrete. Disposable face masks together with their rubber bands, are added in concrete in volumes of 0.50% and 0.25% of the volume of concrete. Samples of concrete mixtures were tested on workability in fresh state, compressive strength and dynamic modulus of elasticity on 28 days old samples. The obtained results were compared with the results of previous examinations
Main Design of the Business and Residential Building Number 20; Split : Master's Thesis
No full textU radu je prikazan glavni projekt poslovno–stambene zgrade br. 20; k.o. Split. Građevina se sastoji od etaže suterena, prizemlja te još 3 kata. Za potrebe parkinga stanara omogućen je podzemni parking u 4 odvojene razine međusobno povezane prijelaznim rampama. Građevina je izvedena u armiranom betonu monolitnom izvedbom sa balkonskom konzolnom konstrukcijom projektiranom u čeliku, s armirano-betonskim temeljima, stupovima, zidovima te armirano betonskim pločama kao međukatnim konstrukcijama. Projekt sadrži: tehnički opis konstrukcije, proračun nosivih konstrukcijskih elemenata te karakteristične građevinske nacrte.The main design of the business and residential building, number 20 positioned in Split, is presented in this work. The building consists of a basement floor, a ground floor, and 3 more floors above. For the parking needs of tenants, ground parking is provided on 4 separate levels interconnected by transition ramps. The building is made of reinforced concrete in a monolithic design also with a balcony cantilever structure designed in steel. Also with reinforced concrete foundations, columns, walls, and reinforced concrete slabs as intermediate floor structures. The project includes: a technical description of the construction, calculation of the bearing structural elements, and characteristic construction desig
Shopping Centers as Trip Generators : Master's Thesis
No full textU ovom diplomskom radu opisan je općeniti postupak prometnog planiranja i postupak provedbe prometne analize utjecaja izgradnje novog sadržaja na kvalitetu prometa okolne mreže. Kao generator koji stvara putovanja uzeti su trgovački centri u Splitu i okolici te je izvršeno brojanje prometa radnim danom i subotom kako bi se dobiveni podaci analizirali i zatim usporedili s podacima iz američke literature o stvaranju putovanja. Izvršena je regresijska analiza dobivenih podataka kako bi se utvrdila veza nezavisne varijable (zakupna površina centra) i zavisne varijable (broj vozila).This study describes the general process of traffic planning and the process of implementing a traffic impact analysis of site development on the quality of traffic in the surrounding network. As a vehicle trip generator, shopping centers in Split and its surroundings were taken, and traffic was counted on weekdays and Saturdays in order to analyze the obtained data and then compare it with data from the American literature on trip generation. A regression analysis of the obtained data was performed in order to determine the relationship between the independent variable (leasable area of the center) and the dependent variable (number of vehicles)
Numerical model for parameter identification of microreinforced concrete
No full textOdređivanje parametara materijala ključno je za razumijevanje njihovih fizikalnih svojstava, poboljšanje procesa projektiranja i optimizaciju troškova. Zbog izazova mjerenja parametara betona armiranog vlaknima koriste se numerički modeli i inverzna analiza za identifikaciju parametara. U svrhu izrade jednog takvog modela provedena su laboratorijska ispitivanja, uključujući ispitivanja savojne i tlačne čvrstoće betona, na uzorcima betona bilježeći tri parametra: vertikalni pomak, pomak otvaranja pukotine i nanesenu silu. Rezultati laboratorijskih ispitivanja poslužili su kao referenca za razvoj numeričkog modela mikroojačanog betona koji je generirao podatke naknadno korištene kao ulazne vrijednosti za inverzni model temeljen na Levenberg-Marquardt metodi. Verifikacija modela uključivala je usporedbu rezultata s podacima dobivenim iz laboratorijskih ispitivanja.Determining material parameters is crucial for understanding their physical properties, improving the design process, and optimizing costs. Due to the challenges of measuring parameters in fiber-reinforced concrete, numerical models and inverse analysis are employed for parameter identification. Laboratory tests, including bending and compressive strength tests, were conducted on concrete samples, recording three parameters: vertical displacement, crack mouth opening displacement, and applied force. The laboratory test results served as a reference for developing a numerical model of micro-reinforced concrete, which generated simulated data used as input for an inverse model based on the Levenberg-Marquardt method. Model verification involved comparing the results with the data obtained from the laboratory tests
The Main Project of the Residential Building in sv. Kajo : Master's Thesis
No full textU radu je prikazan glavni projekt stambene zgrade sv. Kajo. Građevina se sastoji od podruma, prizemlja i 2 kata završno sa ravnim krovom. Osnovnu nosivu konstrukciju čine armiranobetonski elementi: temeljna ploča, zidovi, stupovi, visokostijeni nosači, međukatne i krovne ploče te gredni nosači. Proračun je proveden za nosive elemente i za pojedine je izrađen i armaturni plan.The paper presents the main project of a residential building in sv. Kajo. The building contains of a basement, ground floor, and 2 floors with a flat roof. The basic load-bearing structure of the building consists of reinforced concrete elements: foundation slab, walls, columns, high wall girders, reinforced concrete plates as a ceiling slab, and beams. The calculation was carried out for load-bearing elements and a reinforcement plan was made for individual ones