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6 results for “Composite beams”
Composite Beams Database
<p>1. <a href="https://zenodo.org/api/files/a457c2ad-d898-4726-b65e-6a635e0ed6af/Composite_Beams_Database_v1.0.xlsx">Composite Beam Database v1.0</a></p> <p>A database of composite steel beams that are part of moment-resisting frames is provided. The database consists of 97 tests conducted over the last 30 years. The collection and metadata methodology are thoroughly presented in El Jisr et al. (2019). </p> <p>Each column in the spreadsheet is defined in the "Definitions" tab along with accompanying figures in the "Figures" tab. The database includes details of the composite slab (dimensions, material strength, shear studs) as well as the calculation of the plastic moment resistance and elastic stiffness of the sections as per European, US and Japanese provisions. A comparison between the code-based and test values is also shown. Furthermore, the database includes the plastic deformation capacity of the sections based on the first cycle envelope.</p> <p>2.<a href="https://zenodo.org/api/files/a457c2ad-d898-4726-b65e-6a635e0ed6af/Digitized_Moment_Rotation_Data_v1.0.zip">Digitized Moment Rotation Data v1.0</a></p> <p>Full digitized histories of the moment-chord rotation of the composite beams are provided.</p>
Nonlinear macro-model for OpenSEES simulation of composite steel beams
<p>The dataset consist of the following:</p> <p>1- Source_Code.zip</p> <p>This folder includes the subroutines that can be used to implement the macro-model for simulating the hysteretic behavior of composite steel beams. The README.txt file provides a description of each subroutine </p> <p>2- Nonlinear_Models.zip</p> <p>This folder includes the nonlinear building models. The README.txt file explains the procedure to run nonlinear static or dynamic analysis.</p> <p>3- Incremental_Dynamic_Analysis_Results.zip</p> <p>This folder includes the IDA results for each building at three different sites. The README.txt file provides a description of the data.</p> <p>4- Ground_Motion_Sets.zip</p> <p>This folder includes the ground motion records for four different sites at two different return periods: 475 and 2475 years. The site hazard curves are also included. A description of the hazard analysis, disaggregation and record selection is provided in PSHA_Report.doc</p>
Ultrasonic guided-waves in quasi-isotropic and cross-ply composite beams using a finite element model
<p>Ultrasonic guided-wave data taken from numerical evaluations of a finite element model (FEM) considering two composite beam structures and applying three noise levels in signal-to-noise ratio (SNR):</p> <ul> <li>Quasi-isotropic carbon fiber composite beam (dimensions: 1m x 4mm x 2mm) with a [+45/-45/90/0]_s layup and a transverse crack (1mm deep at 0.40m from excitation) in it and the following noise levels (the file directories are specified in parentheses): <ul> <li>Noisefree (/Quasi-Isotropic_Crack/Noisefree/MeasurementCrack_NF.mat)</li> <li>SNR 10 dB (/Quasi-Isotropic_Crack/SNR_10dB/MeasurementCrack_10dB.mat)</li> <li>SNR 5 dB (/Quasi-Isotropic_Crack/SNR_05dB/MeasurementCrack_5dB.mat)</li> </ul> </li> <li>Cross-ply carbon fiber composite beam (dimensions: 1m x 3mm x 2mm) with [0_{2}/90]_s stacking sequence and a delamination (5mm long at 0.45m from excitation) in it and the following noise levels: <ul> <li>Noisefree (/Cross-Ply_Delam/Noisefree/MeasurementDelam_NF.mat)</li> <li>SNR 10 dB (/Cross-Ply_Delam/SNR_10dB/MeasurementDelam_10dB.mat)</li> <li>SNR 5 dB (/Cross-Ply_Delam/SNR_05dB/MeasurementDelam_5dB.mat)</li> </ul> </li> </ul> <p>FEM notes: solid elements (i.e. C3D8R in Abaqus) with the following dimensions: 0.5mm thick, 0.5mm width, and 0.2mm long. Damage modes are modeled by node duplication.</p> <p>Ultrasonic tests data: 6-cycle Hanning windowed sinusoid centered at 100 kHz of frequency. Excitation signal at one end of the beam in the vertical direction. Sensor situated at 0.2m from the point of excitation and measuring for 720 \mu s. First antisymmetric mode (A0) is excited.</p>
Mechanical Properties, Workability, and Experiments of Reinforced Composite Beams with Alternative Binder and Aggregate
<p><span>Arguably the most important element in the sustainability of concrete development is the discovery of an optimal sustainable binder and substitution for the increasingly depleted reserves of natural aggregates. Considerable interest has been shown in alkali-activated materials, which possess good characteristics and could be considered environmentally friendly because of their use of secondary materials in production. The aim of this study was the determination of the mechanical properties of three different mixtures based on the same locally accessible raw materials. The reference mixture contained Portland cement, the second mix contained a finely ground granulated blast furnace slag instead of cement, and the third mixture contained a portion of light artificial aggregate. The experiments focused on the testing and mutual comparison of the processability of the fresh mixture and mechanical characteristics (like compressive and flexural strength, as well as resistance to high temperatures and surface layer tear strength tests). Reinforced concrete beams without shear reinforcement and with three levels of reinforcement were also tested with a three-point bend test. The results show that, overall, the mechanical properties of all the tested mixtures were similar, but each had its own disadvantages. For example, the blast furnace slag-based mixture had a more vulnerable surface layer or a debatable loss of bulk density in the light aggregate mix at the expense of the mechanical properties. One of the main results of the research is that it was possible to technologically produce beams from the alkali-activated concrete (AAC) mixture. Then, the performed beam experiments verified the mechanism of damage, collapse, and load capacity. The obtained results are essential because they present the use of AAC not only in laboratory conditions but also for building elements. In beams without shear reinforcement, the typical tensile cracks caused by bending and shear cracks appeared under loading, where their character was affected depending on the degree of beam reinforcement and loading.</span></p>
Collected Data on Bending, Vibration, and Push-out Tests of Shallow Steel-Timber Composite Beams – Nordic System
Open the record for dataset details and reuse information.
Focused-ion beam (FIB) Scanning electron micrographs (SEM) of structural battery composite electrolyte
<p>Original FIB-SEM micrographs of a Structural Battery Electrolyte</p>
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