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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 20 of 118 for “"bending moment"”.
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Redistribution of bending moment in continous structures of reinforced concrete
Generalized moment-curvature relations of reinforced concrete members for various cases have been developed. For a limited range of parameters, graphs have been prepared. With these graphs, and within the range of the parameters given, is possible to solve statically indeterminate structures of …
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An Analytical Study of the Behavior of Reinforced Concrete Beams Without Web Reinforcement Under Combined Shear and Bending Moment
Made available in DSpace on 2014-12-08T23:55:52Z (GMT). No. of bitstreams: 1 6403787.pdf: 7226534 bytes, checksum: b104cd3b61bc3c8cb12361bc70997fa8 (MD5) Previous issue date: 1963
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Plug repairs of marine glass fiber / vinyl ester laminates subjected to in-plane shear stress or in-plane bending moment
… roving laminates subjected to in-plane shear and bending. An advantage of this type of repair scheme is its simplicity when compared to more traditional schemes such as scarf or step repairs. The stress concentrations around circular holes in glass fiber / vinyl ester woven roving laminates …
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The Effects of Pruning on Wind Resistance of Shade Trees
… effectiveness of pruning on reducing drag and bending moment. Pruning methods were thin, reduce and raise and meet the requirements set by the American National Standard Institute A300 standards for Tree Care Operations Trees, Shrub, and Other Woody Plant Maintenance - Standard Practices …
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Redistribuição de momentos fletores em estruturas hiperestáticas
… These beams were dimensioned according to bending moment diagrams differing in 15% and 25% from the bending moment diagram obtained from elastic analysis, at the sections of maximum bending moments. In order to determine the plastic rotation capacity of the plastic hinges, twelve simple …
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Análise da distribuição de momento fletor devido a carga móvel em pontes curvas de concreto armado
… the straight due to the coupling between the bending moment and the torsion moment, leading to the need to use structural members that transmit these forces efficiently. The structural behavior of curved bridges still needs a greater amount of contributions, so the main objective of this work …
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The experimental determination of rotor blade dynamic bending moments of a 10-kw wind turbine
… effects of wind shear and gravity on rotor blade bending moments. A drag sphere based wind measuring system was designed to measure rapid fluctuations in wind velocity at two different heights. However, severe power line noise problems with the low level signals forced the use of standard rotating …
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Prediction and experimental evaluation of planar wing spanloads for minimum drag
… They were designed with a prescribed wing-root bending moment constraint with and without incorporating viscous representation. Wind-tunnel models were created based on the optimum spanloads and the experiments were conducted to evaluate the changes in drag as the design constraints differed. …
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Seismic behavior of circular reinforced concrete bridge columns under combined loading including torsion
… loads, shear force, and flexural and torsional moments can result in complex failure modes of RC bridge columns. This study carried out experimental and analytical studies to investigate the seismic performance of circular RC columns under combined loading including torsion. The main variables …
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Behaviour of single batter piles and pile groups under lateral soil movement in sand
… the single pile tests show that, the maximum bending moment induced in a single batter pile was found to be dependent on, among other factors, batter angle, pile embedded length, distance between the batter piles location and soil movement source, pile diameter, profile of soil movement, sand …
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Structural Condition Assessment and Service Load Performance of Deteriorated Prestressed Concrete Deck Beam Bridges
… Participation factors must be based on relative bending moments of one beam with respect to the total amount of bending moment produced by the applied load and not to the amount of total vertical displacement. The participation factors will vary along the span of the bridge deck and will depend …
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Analysis and comparison of the South African and Eurocode live load models for railway bridges
… with the critical load effects of shear and bending moment. The load models are simulated as moving loads over the full length of simply supported and continuous railway systems with speeds not exceeding 180km/h. The study is limited to short to medium spans ranging from 5m – 40m analysed in …
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A Hybrid Multi-Objective Evolutionary Algorithm for Wind-Turbine Blade Optimization
… of the annual energy production, flapwise root-bending moment and mass of the National Renewable Energy Laboratory's (NREL) 5MW wind-turbine blade. To estimate the aerodynamic and structural performance, blade element momentum (BEM) and beam models were developed and validated. By hybridizing a …
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Graphs and tables for the analysis and design of curved concrete beams
… and derivation of the expression: fer bending moment, torsional moment, and shear at the ends and at any intermediate point along a circularly curved beam. The investigation includes both cantilever beams and fixed ends beams, loaded with a uniformly distributed load, concentrated loads …
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Cantos em concreto armado submetidos a tração na sua parte interna
… concrete corners when subjected to a positive bending moment, i.e., traction in the internal part. For this purpose twenty models were experimented, using as reinforcement basic detail U bars, commonly used in Brazil, changing the following parameters: - Percentage of longitudinal …
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Elasto-plastic stress analysis of curved structures with rectangular section
… Literature considering the combined effects of bending moment and axial force is very rare. In this thesis, the author proposes a new method, incorporating effects of both axial force and bending moment, of determining the evolution of stress distributions and the deflections in the inelastic …
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Full-Scale-Lateral-Load Test of a 1.2 m Diameter Drilled Shaft in Sand
… which was then used to calculate deflection and bending moment as a function of depth. For the pipe pile, deflection and applied load were also measured; however, bending moment was computed based on strain gauges readings along the length of the pile. The lateral response of the drilled shafts …
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Optimum Spanloads Incorporating Wing Structural Considerations And Formation Flying
… constraints for lift coefficient, pitching moment coefficient and wing root bending moment. This wing structural constraint has been introduced such that wing geometry is not changed but the modified load distributions can be related to wing weight. Changes in wing induced drag and weight …
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Análise de esforços em estruturas aporticadas com fundações em estacas
… and graphs for the determination of the maximum bending moment of piles are presented for two hypothesis of the soil reaction modulus: constant or varying linearly with depth.
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A study of the behaviour of pressurized piping elbows
The behaviour of piping elbows under bending and internal pressure is more complicated than expected. The main problem is that the coupling of bending and internal pressure is non-linear; stress and displacement cannot be added according to the principle of superposition. In addition, internal …
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