Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"flat slabs"”.
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An investigation on the effectiveness of diagonal tension reinforcement in flat slabs
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1954.
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Preslab - micro-computer analysis and design of prestressed concrete slabs
… for the analysis and design of prestressed flat slabs is presented. The constant strain triangle and the discreet Kirchhoff plate bending triangle are combined to provide an efficient "shell" element. These triangles are used for the finite element analysis of prestressed flat slabs. An …
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Effective Width of Floor Systems for Application in Seismic Analysis
… parameters, and are applicable to floor slabs with supporting beams as well as to flat slabs.
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Zum Durchstanzen von Flachdecken unter Berücksichtigung der Momenten-Querkraft Interaktion und der Vorspannung
Due to their economic and architectural benefits, flat slabs made of reinforced or prestressed concrete are widely used for high-rise and residential buildings. In the surrounding area of slab-column connections, high moment and shear stresses arise, which can cause both bending failure and shear …
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Low-Cost Masonry for the Design of Barrel-Vaulted Flooring Systems
… LEDCs relies on reinforced concrete frames with flat slabs. This structurally inefficient system heavily depends on imported cement and steel for many locations. Compounding this issue, in LEDCs, the construction sector contributes significantly to their annual carbon emissions, sometimes …
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Materially efficient structural floor systems for housing in India
… material costs. As a result, prismatic beams and flat slabs are frequently used despite their structural inefficiency. In its current state, the construction industry is resource intensive and unsustainable. The mounting use of steel-reinforced concrete structures in Indian cities has also …
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Durchstanzen schubbewehrter Flachdecken im Bereich von Innenstützen
… load deflection behaviour of shear reinforced flat slabs by non-linear 3-D finite element analysis? In chapter four to nine these questions were discussed based on 22 own punching tests and several non-linear 3-D finite element studies with the software tools MASA and LIMFES. Finally, an …
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The Application and interpretation of linear finite element analysis results in the design and detailing of hogging moment regions in reinforced concrete flat plates
… concrete pad foundations and simply supported flat slabs. The response to loading, i.e: cracking characteristics, softening of the concrete, moment redistribution, variation of the strain in reinforcement across the section, and deflection is observed and discussed. The results show that the …
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Minimising Embodied Carbon in Concrete Floors
… parametric optimisation for reinforced concrete flat slabs, coupled with a finite element model to estimate non-linear long-term deflections; (3) simultaneous optimisation of the cost and carbon emissions of concrete floors using different conventional slab designs; and (4) comparing the …
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Structural analysis at scale: Computational modeling of embodied carbon in complex floor layouts
… the computational analysis and optimization of flat slabs supported by a network, or grillage, of beams, using a model system of reinforced concrete supported by steel W-sections. The method is used to perform a large-scale analysis of 24,192 unique combinations of beam topologies and assembly …
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Frequency estimation of pre-stressed and composite floors
… Also, new limits on span/depth ratios for flat slabs and span limits for double-T beam floors have been suggested. Similarly, minimum fundamental natural frequencies, damping ratios and maximum static deflections have been suggested for the floors tested. The single panel or beam model may …
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Innovative accessible sunken floor systems for multi-story steel buildings
… been used in reinforced concrete buildings with flat slabs and multi-story steel-framed construction with solid wide-flange beams. However, the design of an accessible sunken floor system with open-web steel joists and joist girders is an innovation, by leading steel design and construction …
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Zur Zuverlässigkeit der Bemessung gegen Durchstanzen bei Einzelfundamenten
… between the punching shear strength of flat slabs and footings. Although experimental investigations clearly indicate that the shear span-depth ratio significantly affects the punching shear behaviour of footings, this effect is not considered in most design codes. A test data bank was …
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Reshaping concrete: Empowering development through low-carbon structural design
… inefficient typologies like prismatic beams and flat slabs despite their structural material waste. This is because their construction mimics the materially inefficient practices of the More Economically Developed Countries (MEDCs), which were developed to reduce labor over material costs. The …
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Einfluss der Bodenreaktionskraft beim Durchstanzen von Einzelfundamenten
… is steeper than observed in punching tests on flat slabs. Since the beginning of the 20th century only few punching tests on footings have been performed. Because the experimental study of a footing under realistic boundary conditions is associated with considerable expenditure, most …
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Studying subduction zone dynamics and continental evolution in South America using data-oriented geodynamic models
… (Chapter 2) and consequences (Chapter 3) of flat subduction, as well as seismic anisotropy caused by subduction-induced mantle flow (Chapter 4). Our model reveals that the flat slabs in South America are caused by the synergy of dynamic suction from the overriding plate and the extra buoyancy …