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Showing 1 to 17 of 17 for “"serviceability limit state"”.
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Vibration based assessment of Kalbaskraal rail bridge
… of structural response 8) Assessment of Serviceability limit state of bridge The overall outcome of the study yielded an effective result in that the conclusions drawn from the outcomes of the methodology correlated well with previous studies on the bridge. The structure under its current …
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Load and resistance factor design of shallow foundations for bridges
… in design parameters for ultimate and serviceability limit states are evaluated. A random field model is employed to investigate the combined inherent spatial variability and systematic error for serviceability limit state. Advanced first order second moment method is then used to …
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Comparative Study of LRFR and LFR Methods of Rating for Missouri Prestressed Bridges
… installation of visible signage of truck weight limit (i.e., load posting). The Missouri Department of Transportation (MoDOT) currently utilizes the Load Factor Rating (LFR) methodology to determine load postings for bridges. The procedures and policies for this load rating process are specified …
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Axial behavior of drilled shafts in soft rock
… of rock sockets in soft rocks. A probabilistic Limit State Design (LSD) framework is adopted. Two limit states are evaluated, namely axial resistance (strength limit state) and settlement (serviceability limit state). The theory of probability is used to calibrate the Load and Resistance Factor …
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Determinação da fluência do concreto e do coeficiente de Poisson diferido em um estado de tensões de compressão bi-axial
… in plane stress. The safety check in the serviceability limit state and in the ultimate limit state of the test slab under systems of self-equilibrated forces are presented in parallel in this work. The set of employed instruments consisted of 31 Carlson electric strain gauges and 12 …
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Sand Deformation Mechanisms and Earth Pressures Mobilised with Retaining Wall Movements
… retaining walls is typically based on ultimate limit state calculations with arbitrary factors of safety, while the assessment of wall deformations is based on serviceability limit state calculations. Such an inconsistency has caused much uncertainty and hence inevitably excessive conservatism …
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Numerical modelling of time-dependent cracking and deformation of reinforced concrete structures
… design of reinforced concrete structures at the serviceability limit state. Despite its importance, code methods for crack control have been developed, in the main, from laboratory observations of the instantaneous behaviour of reinforced concrete members under load and fail to account adequately …
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The Seismic Response of Offshore Wind Turbines Supported by Monopiles and Alternative Foundations in Liquefiable Soils
… tested in this thesis, largely exceeds the Serviceability Limit State (SLS) design requirements of a maximum turbine tilt of 0.5° (DNV-ST-0126, 2021; DNV-RP-0585, 2021). However, the amount of average settlement and rotation experienced by monopiles may be affected by several factors. Among …
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Frequency estimation of pre-stressed and composite floors
… equipment. These uncomfortable vibrations are a serviceability limit state problem and can only be avoided by ensuring a high floor fundamental natural frequency and damping. There is a need, therefore, for a method to accurately predict the fundamental natural frequency and damping of these …
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Experimental and analytical study of the shear transfer in composite shallow cellular floor beams
… is subject to a complex three-dimensional stress state, and it is difficult to analyse it using the mathematical model rather than empirical formula. Finite Element Analysis of the concrete-infill-only shear connection was performed with a parametric study to further verify the design method that …
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Serviceability Design of Long-Span Timber Beams Considering Semi-Rigid Beam-Column Connections
… and control of mid-span deflections at the serviceability limit state (SLS). Conventional timber design practice typically assumes idealised pinned supports in deflection calculations, neglecting the partial rotational restraint provided by real beam-column connections. This simplification …
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Modelling of reinforced concrete slab deflections at service loading
… Cracks, which may or may not be present at the serviceability limit state, have a profound effect on the moment of inertia. Many Codes of practice approach the calculation of deflection in a conservative manner by using the cracked moment of inertia in deflection calculations and ignoring the …
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An investigation into the volume change characteristics of loess like soil in Mount Moorosi Village in Lesotho
… laboratory experiments such as the Atterberg limits, wet sieving, sedimentation, free swell, x-ray diffraction, scanning electron microscope and slaking. The consolidated undrained tests and hydrocollapse potential were also determined from the GEOCOMP triaxial and Global Digital System …
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Statistical analysis of the vertical human walking forces and human structural interaction effects
… excessive vibrations that may compromise the serviceability limit state. Current industry guidance is used ubiquitously to provide all information on the vibration serviceability assessment due to walking, with academic research outcomes often overlooked. Recent research concludes that …
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Stropní konstrukce bytového domu
Cílem bakalářské práce je nadimenzovat a posoudit železobetonovou stropní desku v typickém podlaží obytného domu. K řešení vnitřních sil je využito výpočetního software RFEM. Součástí práce je i ruční výpočet vnitřních sil a porovnání s výsledky ze software a výkresová dokumentace navrženého …
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Návrh železobetonové nosné konstrukce rekreačního objektu
Bakalářská práce se zabývá návrhem vybraných nosných částí železobetonové monolitické konstrukce rekreačního objektu. Spodní stavba, tvořena základovou deskou a obvodovými stěnami, je řešena jako bílá vana, která byla posouzena na mezní stav únosnosti a mezní stav použitelnosti. Práce se dále …
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Návrh předpjatého mostu na silnici I/38
Diplomová práca sa zaoberá návrhom dodatočne predpätej a pôdorysne zakrivenej mostnej konštrukcie na ceste 1.triedy. Most sa nachádza na novovznikajúcom juhovýchodnom obchvate pri českom meste Havlíčkův Brod. Boli navrhnuté tri varianty riešenia hlavnej nosnej konštrukcie, z ktorých bol vybraný …