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Showing 1 to 20 of 35 for “"moment-curvature"”.
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Moment-curvature relationships in reinforced concrete
… and stresses at various layers are computed. Moment-curvature relationships are then obtained from these. The stress-strain curves adopted are from El-Metwally and Chen (1989). The effects of tension stiffening and softening are included by adopting realistic stress-strain curves in both …
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Experimental studies on the limit analysis of reinforced concrete fixed-ended T-beams
… section, but remained constant at the center. Moment-curvature information is developed from the experimental results, and conclusions are drawn concerning present theory for deriving analytical moment-curvature relationships for reinforced concrete sections. Ultimate concrete strain in …
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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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Strengthening of reinforced masonry walls subjected to out-of-plane pseudo-static cyclic load using advanced composite
… of strengthened reinforced masonry wall using moment-curvature analysis. As a result of this study, the proposed model for predicting debonding strain and the moment-curvature relation presented an excellent prediction compared to the experimental results"--Abstract, page iv.
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The Influence of Semi-Rigid Connections on the Behaviour of Beam and Column Structural System
… measurements were used in obtaining the moment curvature relationship. The same joints were tested under hogging and sagging moments to obtain a fuJI understanding of the joint behaviour. Initial moment-curvature diagrams showed different stiffness values between vertical and horizontal …
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Normal-strength and high-strength concrete columns under cyclic axial load and biaxial moment
… a computer code was developed to produce the moment-curvature diagram for concrete sections. The moment-curvature diagram was then input in SAP2000 to study the behavior of reinforced concrete columns. The result of this analysis was found to correlate with experimental data well. The behavior …
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Bifurcations, Multi-stability, and Localization in Thin Structures
… potential use in a bend tester that measures the moment-curvature relationship of soft sheets and filaments. Mechanical rotary pleating is a bending-deformation-dominant process that deforms nonwoven materials into zigzag filter structures. The third work studies what combinations of processing …
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Applications of trilinear coordinates to some problems in plane elasticity
… The concepts of triaxial stress, strain, bending moments and curvature are introduced: utilizing these concepts, the stress-strain relationship, moment-curvature relationship and a few other basic equations of two dimensional elasticity are developed for an isotropic material. All these …
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FRP Confined Reinforced Concrete Circular Cross Section Seismic Applications
… concrete stress-strain model into a developed Moment-Curvature and PM Interaction software. This software conducts a comparison between traditional steel and FRP confined sections while performing parameter studies on the 28-day unconfined concrete compressive strength, longitudinal reinforcing …
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Seismic vulnerability assessment of off-ramp structures of the Las Vegas downtown viaduct
… Vegas downtown viaduct. In the first stage, the moment, shear and deformation capacities of the columns were determined by moment-curvature analysis. Then, the existing design of the bridge columns was compared to the requirements of the current bridge design codes. In the second stage, the …
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Repair of Impact-Damaged Prestressed Bridge Girders Using Strand Splices and Fiber-Reinforced Polymer
… of bridge girders. The cracking and failure moments for each test were evaluated and compared to predictions of the girder's behavior using AASHTO calculations, a moment-curvature diagram, and non-linear finite element modeling.
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Inelastic Seismic Response Of Reinforced Concrete Buildings With Floor Diaphragm Openings
… routine involved in obtaining the idealized moment-curvature curves of floor slabs with openings: symmetric and nonsymmetric). Also, a new option is added so that the user can over-ride IDARC2 idealized moment-curvature curves for slabs with openings and by defining their own. The results are …
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Análisis del pandeo de pilares en régimen no lineal mediante splines generalizados
… en los que es posible predecir la ley de momentos o equivalentemente la distribución de curvaturas. Para este tipo de problemas la utilización de relaciones momento curvatura dada por una poligonal permite establecer una serie de ecuaciones de equilibrio y compatibilidad con las que …
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Performance-Based Analysis of a Reinforced Concrete Shear Wall Building
… from ASCE 41-06 and first-principle mechanics. Moment-curvature analysis and fiber cross-section elements were used in developing the computer models for the nonlinear procedures. The results for the analysis procedures showed that the building met the Basic Safety Objective as defined in ASCE …
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Numerical analysis of a tape spring hinge folded about two axes
… The mechanical response of these hinges (moment-curvature, energy stored etc.) is important in ensuring safety, deployment accuracy as well as optimizing cost of the structure. In an effort to learn more about the folding and deployment properties, finite element software, Abaqus\u2122, …
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An analytical model for the seismic analysis of reinforced concrete frame structures
… The model is developed for a member in double curvature bending and consists of two inelastic zones on either side of a central elastic zone. The bar-slippage which occurs in the beam-column joint is included at the ends of the beam model. A linear bending moment distribution is assumed along …
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Service and Ultimate Limit State Flexural Behavior of One-Way Concrete Slabs Reinforced with Corrosion-Resistant Reinforcing Bars
… at service and ultimate limit states. Moment-curvature predictions from the computer-based sectional analysis program Response 2000 were consistent with the tested results, demonstrating its viability for use with high strength and non-metallic bar without a defined yield plateau. …
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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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Investigation of Out-of-Plane Properties of Interlocking Compressed Earth Block Walls
… ICEB walls under out-of-plane loading. </p> <p>A moment-curvature relationship was developed that accurately predicts the behavior of these walls in the elastic range as well as the inelastic range. By comparing the data provided by two walls of similar sizes, one including a pilaster and one …
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Short-term and time-dependent flexural behaviour of steel fibre-reinforced reactive powder concrete
… loading to determine their cracking and ultimate moment capacity. The remaining 4 beams were used to investigate the time-dependent flexural behaviour of prestressed SF-RPC slabs. The material properties were measured using a range of short-term tests and included the compressive and flexural …
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