Global ETD Search
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Showing 1 to 13 of 13 for “"snow load"”.
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Evaluating the Displacement Modes and Associated Risks of Stacked Log Structures
… displacement, especially those associated with snow load, of historic stacked log structures at the Bar BC Ranch in Grand Teton National Park in preparation of a typology of displacement indicators and risk exposures that inform the development of a field survey to help building stewards monitor …
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Snowfall Interception and Ablation in Needleleaf Canopies: Observations and Model Development
Snow falls on forests covering 23% of the global landmass. Here, interception by forest canopies plays a crucial role in the terrestrial water cycle and land-atmosphere energy exchanges. Global changes in climate and vegetation cover have the potential to alter how snowfall is intercepted and …
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The influence of load distribution on the reliability analysis of lumber properties data
… information concerning the statistical nature of loads acting on light frame structures, distributions of maximum lifetime roof snow load and maximum lifetime floor live load were developed for use in differential reliability analyses of lumber properties data. The dead load was combined with the …
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An investigation of an existing aluminum lattice dome under snow loads
… aluminum lattice dome was performed with the loads prescribed by the American National Standards Institute. The pressure snow loads were transformed into a distributed load along the dome members. The analysis of the dome was performed with the structural analysis program STAAD-III. The dome …
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Modeling and stability investigation of a Glulam dome
In order to predict the ultimate load capacity and failure modes of a glued-laminated timer dome, two dome models are analyzed by two finite element methods. I-DEAS is utilized to generate shell elements and to compute nodal forces for the dome model. Wind load requirements are studied, and the …
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Parallel lamella dome under wind and snow loads
… of parallel lamella dome under wind and snow loads. The modified Riks/Wempner method is used to perform the prebuckling and postbuckling analysis. The European Convention for Constructional Steelwork (ECCS code) is used as the code of practice for design wind pressures on domes. Failures …
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Load and resistance factor design for wood structures
… design exist due to the random nature of loads and materials, lack of knowledge, and imperfect modelling of design parameters. Conventional design methods based on deterministic procedures do not always yield designs having consistent safety. In recent years considerable research has been …
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Influence of lumber property correlations on roof truss reliability
… were subjected to a 50 year maximum lifetime snow load distribution plus a dead load distribution. Bending, tensile, and compressive strength properties were modeled by a weighted least squares regression analysis. Modulus of elasticity was used as the independent strength predictor, and was …
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Experiments on the Response of Arch-Supported Membrane Shelters to Snow and Wind Loading
… of how these structures behave under wind and snow loading conditions. Three models were constructed, one at a scale of 1:100 and two at a scale of 1:50. The 1:100 scale model represented a proposed prototypical structure 200 ft long, 75 ft wide, and 50 ft tall, with multiple arches. Of the …
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Geometrically nonlinear finite element analysis of a glulam timber dome
… accurate mesh, the determination of design loads and the specification of load combinations, the application of analysis procedures to trace the complete response of the structure, and the evaluation of the response. The modeling assumptions and analysis procedures are applied to a dome …
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Analysis of Pressurized Arch-Shells
… behavior of arch-shells under various types of loading. The types of loading include a uniformly distributed vertical load representing snow, a wind load, and a horizontal side load distributed along the arc length. Deflections, stress resultants, and moments at various locations are computed …
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Development and Applications of a Flat Triangular Element for Thin Laminated Shells
… and rotations under the action of environmental loads like the wind and snow loads. The wind load is modeled as a nonuniform pressure load and the snow load as lumped concentrated loads. Since the direction of the pressure load is assumed to be normal to the current configuration of the …
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Finite Element Analysis of a Pair of Leaning Pressurized Arch-Shells Under Snow and Wind Loads
… various tilt angles, boundary conditions, and loads is investigated numerically. Several types of loads are considered, including uniformly-distributed vertical loads applied over all or half of the structure (representing snow), and wind loads on the structure. The arches are pinned or fixed …