diplomska naloga
Anže Andrejka (Avtor), Violeta Bokan-Bosiljkov (Mentor), Janko Logar (Član komisije za zagovor), Dejan Zupan (Član komisije za zagovor), Tomo Cerovšek (Član komisije za zagovor), Igor Planinc (Član komisije za zagovor), Andraž Mezgec (Komentor)

Povzetek

Učinkovitost izvedbe sanacij premostitvenih AB objektov pod prometno obremenitvijo

Ključne besede

diplomske naloge;gradbeništvo;sanacije;Pull-off;odtržna trdnost;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [A. Andrejka]
UDK: 625.7/8:624.012.4(043.2)
COBISS: 5479777 Povezava se bo odprla v novem oknu
Št. ogledov: 3252
Št. prenosov: 488
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Efficiency of RC bridges repair under traffic load
Sekundarni povzetek: When repairing reinforced concrete bridges under traffic load contractors face high quality requirements of executing repairing works as requested by Principal. It is particulary hard to achieve appropriate bond strength of repair material when repair work are executed on underside of pavement with ongoing traffic. The first part of the diploma thesis describes a concept of repair of reinforced concrete structures and presents SIST EN 1504 standard, which covers the area of repair work. In the second, experimental part of the diploma thesis, the results of pull-of tests of repair material are presented and analyzed. Repair material was applied to the underside of concrete beams exposed to dynamic load. Concrete surface of beams, where the repair material was applied, was prepared in two different ways: with high pressure water blasting and with hand impact technique. Two repair mortars were used, both appropriate for repair work under dynamic load. Compression and flexural strength tests were also carried out on prisms prepared from repair mortars, in order to determine properties of hardened material, when it is exposed to dry or wet curing.
Sekundarne ključne besede: civil engineering;graduation thesis;repair work;Pull-Off;adhesion strength;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XII, 113 str., [2] f. zganj. pril.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Efficiency of rc bridges repair under traffic load
Ključne besede (ePrints): sanacija;Pull-off;odtržna trdnost
Ključne besede (ePrints, sekundarni jezik): repair work;Pull-Off;adhesion strength
Povzetek (ePrints): Pri sanacijah armiranobetonskih premostitvenih objektov pod prometno obtežbo se izvajalci srečujejo z visokimi zahtevami glede kakovosti izvedbe, ki jih predpisuje naročnik. Ko sanacija poteka na spodnji strani voziščne konstrukcije, preko katere oziroma v bližini katere poteka promet, je še posebej težko doseči ustrezne vrednosti odtržnih trdnosti sanacijskega materiala. V prvem delu diplomske naloge je opisan pojem sanacij armiranobetonskih objektov in predstavljen standard SIST EN 1504, ki pokriva področje sanacij. V drugem, raziskovalnem delu diplomske naloge, je določena odtržna trdnost sanacijskega materiala, ki je apliciran na spodnjo stran betonskih nosilcev, ki so izpostavljeni dinamični obtežbi. Površina betonskih nosilcev, na katere je apliciran sanacijski material, je pripravljena na dva načina, z vodnim curkom pod visokim pritiskom in ročno, z udarno tehniko. Uporabljeni sta dve malti, primerni za sanacijska dela na objektih, izpostavljenih dinamični obtežbi. Opravljeni so tudi preizkusi tlačne in upogibne trdnosti sanacijskih malt, z namenom določiti lastnosti strjenega sanacijskega materiala, če je le ta izpostavljen suhi oziroma mokri negi.
Povzetek (ePrints, sekundarni jezik): When repairing reinforced concrete bridges under traffic load contractors face high quality requirements of executing repairing works as requested by Principal. It is particulary hard to achieve appropriate bond strength of repair material when repair work are executed on underside of pavement with ongoing traffic. The first part of the diploma thesis describes a concept of repair of reinforced concrete structures and presents SIST EN 1504 standard, which covers the area of repair work. In the second, experimental part of the diploma thesis, the results of pull-of tests of repair material are presented and analyzed. Repair material was applied to the underside of concrete beams exposed to dynamic load. Concrete surface of beams, where the repair material was applied, was prepared in two different ways: with high pressure water blasting and with hand impact technique. Two repair mortars were used, both appropriate for repair work under dynamic load. Compression and flexural strength tests were also carried out on prisms prepared from repair mortars, in order to determine properties of hardened material, when it is exposed to dry or wet curing.
Ključne besede (ePrints, sekundarni jezik): repair work;Pull-Off;adhesion strength
ID: 8312154