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Showing 1 to 20 of 74 for “"beam-column"”.
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Disproportionate Collapse Resistance of Timber Beam-column Connections
… damage, such as element removal. Multi-material beam-column connections in timber post-and-beam buildings provide deformation capacity, continuity, and ductility necessary to form alternative load paths in the event of such initial damage. Accordingly, these alternative load paths can avert …
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Load-Deformation Characteristics of Beam-Column Connections of Reinforced Concrete
Made available in DSpace on 2014-12-05T17:37:27Z (GMT). No. of bitstreams: 1 6202887.pdf: 9935525 bytes, checksum: 846e2e87bf39f8389ccad5b416cf8cd3 (MD5) Previous issue date: 1962
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Comparison and convergence studies of nonlinear finite element beam-column models
… conducted with two non- linear finite element beam-column models. Both models admit physical and geometric nonlinearities. The models differ in their respective strain field representations. Model 2 permits a linear longitudinal and transverse strain variation. The strain field of model 3 can …
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Ultimate Strength Analysis of Stiffened Panels Using a Beam-Column Method
An efficient beam-column approach, using an improved step-by-step numerical method, is developed in the current research for studying the ultimate strength problems of stiffened panels with two load cases: 1) under longitudinal compression, and 2) under transverse compression. Chapter 2 presents an …
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Serviceability Design of Long-Span Timber Beams Considering Semi-Rigid Beam-Column Connections
… partial rotational restraint provided by real beam-column connections. This simplification often results in overly conservative designs, inefficient material use, and underutilisation of structural capacity. Addressing this gap, this thesis investigates the influence of semi-rigid connection …
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Modeling of Hysteretic Behavior of Beam -Column Connections Based on Self -Learning Simulation
In this research, a new neural network (NN) based cyclic material model is applied to inelastic hysteretic behavior of connections. In the proposed model, two energy-based internal variables are introduced to expedite the learning of hysteretic behavior of materials or structural components. The …
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Performance of Reinforced Concrete Edge Beam -Column -Slab Connections Subjected to Earthquake Loading
"In seismic analysis of MRFs, beam-column connections are often modeled with rigid joint zones. However, it has been demonstrated that, in ductile RCMRFs designed based on current codes (to say nothing of older non-ductile frames), the joint zones are in fact not rigid, but rather undergo …
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Beam-column connection flexural behavior and seismic collapse performance of concentrically braced frames
… investigates the flexural behavior of beam-column connections with gusset plates and their ability to improve the seismic collapse performance of concentrically braced frames. Previous experimental and field observations demonstrated that reserve lateral force-resisting capacity due to …
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An Analytical Study on the Behavior of Reinforced Concrete Interior Beam-Column Joints
… the United States and throughout the world. The beam-column (BC) joints are the most crucial regions in a RC moment frame structure as any deterioration of strength and/or stiffness in these areas can lead to global collapse of the structure. Thus, accurate simulations of the joint behavior are …
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Nonlinear Cyclic Truss Model for Beam-Column Joints of Non-ductile RC Frames
… environment in areas with seismic hazards. The beam-to-column joints of these frames are key components that have a significant impact on the structure's behavior. Modern detailing provides sufficient strength within these joints to transfer the forces between the beams and the columns during a …
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Joint Shear Behavior of Reinforced Concrete Beam-Column Connections Subjected to Seismic Lateral Loading
An extensive experimental RC beam-column connection database (of 341 subassemblies in total) was constructed. RC joint shear behavior (joint shear stress v. joint shear strain) was described as an envelope curve by connecting key points displaying the most distinctive stiffness changes. At the …
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Modeling and Behavior of the Beam/Column Joint Region of Steel Moment Resisting Frames
The effect of panel zone (PZ) flexibility and yielding on the stiffness and strength of steel moment resisting frames (SMRF) has been the topic of numerous papers over the past thirty years. When properly detailed, the PZ is an excellent source of energy dissipation, even under large inelastic …
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Small oscillations of a beam-column with finite electrical conductivity in a constant transverse magnetic field
Small oscillations of a beam-column with finite electrical conductivity in a transverse magnetic field are examined under the assumption that the vibration of the bar causes only a weak perturbation in the electromagnetic-field. The frequency equation is derived for a column and reduced to that for …
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Consequences of Simultaneous Local and Overall Buckling in Stiffened Panels
… by (Chen, 2003) had produced a new step-by-step beam-column method for predicting stiffener-induced compressive collapse of stiffened panels. An alternative approach is to use orthotropic plate theory. As part of the validation of the new beam-column method, ABAQUS elasto-plastic Riks ultimate …
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A comparison of two models for geometrically nonlinear finite element analysis of plane frames
… frames. One model is developed using classical beam-column theory, and the other is formulated using standard finite element techniques. The beam-column model is shown to converge to a more accurate equilibrium path using less elements to model a structure than the second model for frames. The …
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Effect of Column Axial Load on Skewed SMF RBS Connection Demands
… that limit the use of non-orthogonal (skewed) beam-column connection geometries. A recent study has investigated laterally skewed moment frame connections, indicating that skew increases the potential for column twist and column flange yielding; however, it is unclear how realistic column axial …
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Inelastic Analysis of Tripping Failure of Stiffened Steel Panels due to Stiffener Flange Transverse Initial Eccentricity
… did not change. This thesis attempts to use beam-column analysis on the imperfect stiffener flange to predict the tripping strength. It was determined that the procedure presented in this thesis does not accurately model the true failure mode of stiffeners in tripping. The resulting ultimate …
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ANCHORAGE OF HEADED REINFORCING BARS IN CONCRETE
… of 32 No. 8 headed bars anchored in simulated column-foundation joints represented by bars anchored in slabs, all but two with reinforcement in the plane of the slab, and six lapped-slplice specimens without confining reinforcement containing No. 6 headed bars and an analysis of these tests …
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Nonlinear Analysis of Plane Frames Subjected to Temperature Changes
… relationships are derived using the beam-column theory, taking into consideration the effect of curvature due to temperature gradient across the element cross-section. The changes in element chord lengths due to thermal axial strain and bowing due to the temperature gradient are also …
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