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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Ligações e armaduras de lajes em vigas mistas de aço e de concreto. / Connections and slab reinforcement of concrete-steel composite beams.

Fuzihara, Marisa Aparecida Leonel da Silva 24 November 2006 (has links)
As vigas mistas de aço-concreto vêm ganhando espaço no mundo e no Brasil. Sua grande vantagem é o aproveitamento das melhores propriedades que cada material apresenta. O aço possui excelente resposta para esforços tanto de tração como os de compressão e o concreto para esforços de compressão. As vigas mistas envolvem basicamente o perfil de aço, a laje de concreto, os conectores e as armaduras. Na interface destes materiais ocorrem fenômenos que merecem destaque, como grau de interação, cisalhamento na superfície de contato e separação vertical. Os procedimentos normalmente empregados em projetos de estruturas convencionais de concreto armado e de aço fornecem muitas respostas para questões semelhantes nas estruturas mistas, porém, no geral, não abordam a questão mais relevante que é a ligação entre o aço e o concreto. Na vizinhança dos conectores de cisalhamento, a laje da viga mista de aço e concreto está sujeita a uma combinação de cisalhamento longitudinal e momento fletor transversal, por isso a interface é a região que necessita de uma análise cuidadosa. Esses aspectos são os objetos principais da pesquisa. Adicionalmente são discutidos os procedimentos de projetos adotados pelas normas brasileira (NBR 8800-86), americana (AISC) e européia (EUROCODE 4): nas regiões de ligações entre os materiais por meio de conectores em perfis de aço sob lajes de concreto, no controle da fissuração em seções solicitadas por momentos negativos e nas armaduras transversais de costura. / The use of composite steel-concrete beams is increasing in Brazil and in the world, because this is to take advantage of the best properties of each material. Steel has an excellent response to compression and tension and concrete has to compression. Composite beams include basically the steel beam, concrete slab, connectors and reinforcement. Some phenomena in the interface of these materials must be considered, like the degree of interaction, shear in contact surface and uplift. The procedures normally taken in design of conventional structures of reinforced concrete and steel structures supply many answers to similar questions in composite structures, but, in general, they do not approach the most relevant question which is the bond between steel and concrete. The slab of composite steel-concrete beam is affected by a combination of longitudinal shear and transverse flexure, in the neighborhood of the shear connector. The analysis of the behavior of the slab and the reinforcement are main aspect of the work. In addition, some design procedures adopted by Brazilian Standard (NBR 8800-86), American Standard (AISC-2005) and European standard (EUROCODE 4) are discussed, in especial the related to connects, the crack control in sections with hogging moment and in transverse reinforcement.
2

Ligações e armaduras de lajes em vigas mistas de aço e de concreto. / Connections and slab reinforcement of concrete-steel composite beams.

Marisa Aparecida Leonel da Silva Fuzihara 24 November 2006 (has links)
As vigas mistas de aço-concreto vêm ganhando espaço no mundo e no Brasil. Sua grande vantagem é o aproveitamento das melhores propriedades que cada material apresenta. O aço possui excelente resposta para esforços tanto de tração como os de compressão e o concreto para esforços de compressão. As vigas mistas envolvem basicamente o perfil de aço, a laje de concreto, os conectores e as armaduras. Na interface destes materiais ocorrem fenômenos que merecem destaque, como grau de interação, cisalhamento na superfície de contato e separação vertical. Os procedimentos normalmente empregados em projetos de estruturas convencionais de concreto armado e de aço fornecem muitas respostas para questões semelhantes nas estruturas mistas, porém, no geral, não abordam a questão mais relevante que é a ligação entre o aço e o concreto. Na vizinhança dos conectores de cisalhamento, a laje da viga mista de aço e concreto está sujeita a uma combinação de cisalhamento longitudinal e momento fletor transversal, por isso a interface é a região que necessita de uma análise cuidadosa. Esses aspectos são os objetos principais da pesquisa. Adicionalmente são discutidos os procedimentos de projetos adotados pelas normas brasileira (NBR 8800-86), americana (AISC) e européia (EUROCODE 4): nas regiões de ligações entre os materiais por meio de conectores em perfis de aço sob lajes de concreto, no controle da fissuração em seções solicitadas por momentos negativos e nas armaduras transversais de costura. / The use of composite steel-concrete beams is increasing in Brazil and in the world, because this is to take advantage of the best properties of each material. Steel has an excellent response to compression and tension and concrete has to compression. Composite beams include basically the steel beam, concrete slab, connectors and reinforcement. Some phenomena in the interface of these materials must be considered, like the degree of interaction, shear in contact surface and uplift. The procedures normally taken in design of conventional structures of reinforced concrete and steel structures supply many answers to similar questions in composite structures, but, in general, they do not approach the most relevant question which is the bond between steel and concrete. The slab of composite steel-concrete beam is affected by a combination of longitudinal shear and transverse flexure, in the neighborhood of the shear connector. The analysis of the behavior of the slab and the reinforcement are main aspect of the work. In addition, some design procedures adopted by Brazilian Standard (NBR 8800-86), American Standard (AISC-2005) and European standard (EUROCODE 4) are discussed, in especial the related to connects, the crack control in sections with hogging moment and in transverse reinforcement.
3

Železobetonová monolitická nádrž / Cast-in-place tank

Renczes, Gábor January 2019 (has links)
The thesis deals with the design and assessment of all supporting parts of a cast-in-place reinforced concrete sewage tank in a wastewater treatment plant. The thesis includes a technical report, static analysis, drawing documentations, construction process and visualization. The drawing documentation consists of shape and reinforcement drawings of supporting parts.
4

Monolitická železobetonová nádrž / Monolithic reinforced concrete tank

Kollárik, Adrián January 2020 (has links)
The thesis deals with design and assessment of all supporting parts of cast-in-place reinforced concrete tank. The thesis includes a technical report, static analysis, drawing documentations, construction proces and visualization. The drawing documentation consists of shape and reinforcement drawings of supporting parts.
5

Bytový dům / Flat Building

Podepřel, Petr January 2020 (has links)
The thesis deals with the design and calculation of selected parts of an apartment building in Brno. The apartment building is 6 floors (one underground floor and 5 above-ground floors), the underground floor is the entire reinforced concrete. The work focuses mainly on the static design and assessment of individual elements of reinforced concrete structures. The assessed load-bearing elements are the roof slab, ceiling slab 1.PP, prefabricated staircase, elevator shaft and so-called white bath (foundation slab, walls). All calculations are performed using SCIA Engineer. Individual ceiling slabs and staircases are solved by 2D models and the construction of the white bathtub is made in a 3D model. The design proceeded according to valid European standards ČSN EN 1992-1-1 and ČSN 73 1201. The result of this work is static design of reinforcement of all solved parts and drawing documentation.
6

Návrh betonové konstrukce s ohledem na požární odolnost / Design of concrete structure with respect to fire resistance

Zápotočný, David January 2020 (has links)
Diploma thesis deals with design of selected parts of reinforced concrete construction of a multi-storey building with respect of fire resistance. The proposed elements are reinforced concrete locally suported ceiling slab, selected column and wall. These structures are located in the storage hall on the 1st underground floor. Different variants of structural design are consulted and compared in this work. The calculation of internal forces is performed in the calculation software Scia Engineer 19.1. The thesis includes a structural design as well as drawings. The construction is designed according to ČSN EN standarts.
7

Nosná konstrukce nemocničního pavilonu / Load-bearing Structure of Hospital Pavilion

Hůrka, Jiří January 2015 (has links)
The thesis is focused on the design and assessment of selected elements of load-bearing structure of hospital pavilion. This pavilion consisted of board frame with additionally lined self-supporting perimeter cover. Selected elements of the structure are locally supported slab, columns, foundation pad and staircase . Computational model was assembled of the software RFEM5. Internal forces locally supported slab were verified by manual calculation. The design documentation consist of engineering report, structural analysis and shape and reinforcements drawings of selected structural elements.
8

Železobetonová konstrukce bytového domu / Reinforced concrete load-bearing construction

Ilčík, David January 2016 (has links)
The diploma thesis is aimed for design and assessment main load bearing elements of a apart-ment building on the ultimate and serviceability limit state. Assessed parts of construction are reinforced concrete slab over the second floor, column and shear wall in the first floor, stairway slab and foundation pad. The elements are assessed in a structural design report according valid standard. There is created drawings. Internal forces are calculated using software Scia Engineer, where is modeled and loaded the construction.
9

Železobetonová nosná konstrukce administrativní budovy / Reinforced concrete structure of a administrative building

Čačaný, Matej January 2017 (has links)
The diploma thesis is focused on design and assessment selected parts of the reinforced concrete structure supporting six storey office building with regard to the ultimate and serviceability limit state.This thesis contains a static calculation and technical drawings of concrete slab above first floor, staircase and two columns. For calculation of internal forces was created a 3D structural model in Scia Engineer 16. Assessment of all designed parts of the structure is done according to Eurocode 2 (ČSN EN 1992-1-1).

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