Academic literature on the topic 'Slimfloor'

abstract: Innovative composite structures have been intensively studied towards meeting the demands of civil construction. An example of such structures is slim floor, comprised of concrete or composite slabs positioned at the height of steel beams, reducing the total height of the floor. In Brazil, studies on this system are still in early stages, and due to the lack of both experience and national normative codes, it is hardly used in civil construction. Given the possible combinations between concrete slabs and steel beams, the system exhibits different typologies. This article reports a numerical investigation on two typologies of slim floor, namely Asymmetric Slimflor Beam (ASB), composed of an asymmetric I beam, and Composite Slim-Floor Beam (CoSFB), comprised of an asymmetric beam with small openings at the top of its web. Nonlinear numerical models of ASB and CoSFB typologies were developed by Finite Element-based software ABAQUS®. The models were calibrated with the use of experimental studies from the literature, and showed high accuracy and good results. After calibration, the materials properties and geometric dimensions of the models, such as height and thickness, were standardized for a comparison of the typologies. The comparative analysis showed the particular characteristics of CoSFB promoted higher stiffness and flexural capacity compared to ASB, and a parametric analysis evaluated the influence of steel and concrete parameters on the flexural behavior of the typologies. The parametric study revealed the steel parameters exerted a more substantial influence on the slim floors behavior than the concrete ones.

The diploma thesis deals with project documentation for the realization of the sports centre in Zlín. Object is located on the edge of the city Zlín in build-up area of the sports halls. Object is defined from two sides by major roads, that are connected with family and residential buildings. Building site of the object is sligtly sloping, however with ground adapting adjusts into seeming flat land. The hall is devided on three operation parts. First and dominant unit is formed by gaming area with grandstrand, corresponding facilities included. Second unit is formed by mountaineering wall, corresponding included. Third unit is formed by bar, corresponding facilities included. Object is drafted with consideration of the Baťas architecture. Object is designed like a skeleton construction with combinated system of frames. Main supporting vertical construction of skeleton is designed from reinforced prefabricated concrete column. Main supporting horizontal construction of skeleton is designed like a system solution slimfloor, that is based on placing prestressed segment onto bottom side of a special beam Deltabeam. Within the main supporting construction is designed stifenner and construction of grandstrand as well, maid from reinforced prefabricard concrete. Sheathing of the object is combinated. From the second floor is designed system from thermal insulated sandwich panels, which is anchored into the pre-set steel construction. Roof is designed as a flat roof with trapezoidal metal sheet with thermal insulation and waterproofing layer made from m-PVC. Fillings of the object including light curtain wall is designed from system Schüco.

GFRP pultruded profiles have shown to be structural profiles with great stiffness, strenght and very low specific weight, making it a great candidate for the rehabilitation of damaged strucutres. To further enhance the strucutral mechanism of these type of beams, the Slimflor composite structural system has lead as basis for this analysis; by replacing the steel beam with a GFRP pultruded profile. To further increase its composite action, a continuous shear connector has been set as part of the beam cross section as well as its needed reinforcement and fire protection.

Dissertação de Mestrado em Engenharia Civil, Construção Metálica e Mista, apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
As soluções estruturais com recurso a elementos mistos aço-betão são cada vez mais reconhecidas globalmente como soluções de excelência. Como justificação desse estatuto destaca-se a sua economia, eficiência estrutural, processos construtivos de considerável rapidez ou a sustentabilidade da própria construção. De forma a enquadrar o âmbito de aplicabilidade do trabalho realizado, numa fase inicial é apresentada uma revisão bibliográfica sobre a construção mista, dando-se especial atenção ao elemento tipo viga (soluções convencionais e soluções slimfloor – vigas mistas parcialmente embebidas no pavimento). É apresentada uma evolução cronológica de soluções estruturais, concluindo-se com a apresentação das soluções construtivas de aplicação corrente. Posteriormente, são enunciadas as principais particularidades da construção mista, referindo-se ainda as suas vantagens e desvantagens. Direcionando para o campo da análise e dimensionamento de vigas mistas, são tratados de forma detalhada os conceitos necessários para o efeito, tendo-se como enquadramento regulamentar o Eurocódigo 4 (EN 1994 1-1). Particularmente para soluções slimfloor, visto que tais soluções não são explicitamente abordadas pela regulamentação europeia, recorreu-se a bibliografia internacional de referência, traduzindo-se assim a presente dissertação num documento de elevada utilidade para a análise e dimensionamento desse tipo de soluções. Tendo como base os conceitos técnicos descritos, foi desenvolvida uma ferramenta de cálculo que os aplicasse de uma forma prática em termos de dimensionamento. Com a implementação dos processos de análise global da viga, verificações em fase construtiva, verificações em fases definitiva para estados limites últimos e de serviço foi possível compreende-los de forma mais aprofundada, com especial atenção para as soluções slimfloor. Deste modo, foi possível apontar alguns temas pertinentes para investigação futura na temática. Por fim, é apresentado um exemplo prático de dimensionamento de um piso tipo de um edifício metálico e misto, onde são comparadas aplicações de soluções de vigas convencionais e vigas slimfloor, procurando-se com o mesmo essencialmente justificar a competitividade económica das segundas face às primeiras.
Steel-concrete composite structures are currently accepted as a first-rate structural solution, position sustained by their economy, structural efficiency, quick assembly and sustainability. To point out the scope of the present document, in an initial stage, a bibliographic review about steel-concrete composite construction will be presented, particularly to the beam element (conventional and slimfloor beams – last ones, beams partially encased in the concrete slab), starting with a chronologic review about structural solutions, and ending with the presentation of the currently most applied solutions. After the review, the most important characteristics of steel-concrete composite structures will discussed, as well as their advantages and disadvantages. Focus in the structural analysis and design domain, all the essential concepts are discussed with an extended detail, bearing in mind a normative connection with Eurocode 4 (EN 1994-1-1). Particularly to slimfloor solutions, as they are not explicit covered by European standards, internationally renowned bibliography was used, procedure that classifies the present document as an helpful tool do the design of this type of structural solutions. With all the concepts settled in the domain of structural analysis and design of composite beams, a structural calculation tool was developed, which indorsed all of their relevant practical applications. The procedure, taking into account global analysis, construction stage design, composite stage design to ultimate and serviceability limit states, a superior comprehension of them was reached, condition that guided to an interesting identification of possible future research works. To conclude, a practical design example of a structural floor of a steel and composite building was developed, applying conventional and slimfloor beams, searching for a validation of the economic competitiveness of the slimfloor solutions.