Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 29 for “"OpenSees"”.
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Integrating Structural Fire Analysis with Hybrid Fire Testing: A Framework for Enhanced Stability, Software development and Full-Scale Evaluation.
… against experimental data. Implemented in OpenSees for Fire [1], it significantly improves simulation accuracy during heating and cooling phases. Finally, the thesis introduces OpenSFire, a graphical environment that integrates geometry creation, finite-element heat-transfer analysis, …
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Investigation of Applicable Seismic Response Modification Factor For Three-Hinge Glulam Tudor Arches Using FEMA P-695
… models were created using finite elements within OpenSees to accurately depict the behavior of the arch. Incremental dynamic analyses were conducted on each of the provided designs and collapse margin ratios were determined allowing performance groups to be evaluated for each of seven design …
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Monotonic and Cyclic Simulation of Screw-Fastened Connections for Cold-Formed Steel Framing
… cyclic deformation paths, by comparing to OpenSees connection simulation results. The connection model is employed in ABAQUS shear wall simulations of recent monotonic and cyclic experiments where each screw-fastened connection is represented as a UEL. The experimental and simulation …
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Numerical modeling of a bridge system & its application for performance-based earthquake engineering
… this research, centrifuge experimental tests and OpenSees numerical simulations were performed to understand and validate numerical modeling strategies to capture soil-pile-structure interaction of bridge structures. The study included shaking in several directions, pile embedment lengths, and …
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Development and experimental validation of self-centering buckling-restrained braces with shape memory alloy
… are used to validate an SC-BRB model in OpenSEES, which is used to conduct further parametric studies of SC-BRB behavior.
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Stochastic prediction of collapse of building structures under seismic excitations
… and Mahin, 2004; Lignos et al., 2008) by use of OpenSees, an object-oriented software framework developed by Pacific Earthquake Engineering Center (PEER). Using OpenSees computational models validated by corresponding experimental results, new dynamic-instability-based collapse limit-state is …
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Contributions to the analysis and mitigation of liquefaction in loose sand slopes
… of coupled flow and deformation using the OpenSees open-source software framework. The analyses make extensive use of an advanced elasto-plastic model developed by Dafalias and Manzari (2004; DM2004) for simulating the cyclic response of sand. The model formulation is based on theories of …
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Quasi-isolated highway bridges: influence of bearing anchorage strength on seismic performance
… of 480 nonlinear dynamic analyses conducted in OpenSees. Based on the sensitivity study, longitudinal response was largely insensitive to anchor bolt diameter, but transverse response displayed sensitivity and offered potential for performance calibration. Bridges with short piers and light …
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Numerical simulation of the response of sandy soils treated with pre-fabricated vertical drains
… equation. The elements are implemented in the Opensees framework. Two implementations are presented, one for laminar drains, and one for fully turbulent drains. Both of these implementations are used to estimate also the effect of drain storage capacity. It has been illustrated that the flow in …
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Seismic response of wharf structures supported in liquefiable soil
… non-linear finite element simulations using the OpenSees open-source software framework. The analyses make extensive use of an advance macroelement formulation by Varun (PhD, 2010), which captures efficiently the fundamental mechanisms of saturated granular soil behavior. The thesis explains in …
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A Variable Stiffness Energy Dissipation Device for Vibration Control of Steel Frames
… into the framework of an open-source software OpenSees. The device can be invoked by issuing specific codes in the Tool Command Language (TCL) file of OpenSees to an axially loaded member to simulate the snap-through and snap-back behaviors. To demonstrate the effectiveness of the proposed …
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Response modification factor of reinforced concrete moment resisting frames in developing countries
… Two-dimensional building models are developed in OpenSees and subjected to nonlinear time history analysis. Fiber sections with different material constitutive behaviors are constructed for each of the building’s critical elements. The reinforcement detailing of the analyzed buildings is …
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Wall-to-Floor Interaction in Reinforced Concrete Buildings
… non-linear three-dimensional numerical models in OpenSees. The models were based on a case-study building selected after a comprehensive typology analysis performed to three major cities in New Zealand. To ensure that wall elongation was appropriately simulated, a numerical approach based on …
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Influence of Column-Base Fixity On Lateral Drift of Gable Frames
… in the developed wizard. The wizard uses OpenSees and SAP2000 to analyze the modeled configuration of the connection and provides values of the initial rotational stiffness and maximum bearing pressure for the provided loads. These values can be further used in any structural analysis …
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Seismic Performance of Square Nickel-Titanium Reinforced ECC Columns with Headed Couplers
… is utilized. Analytical studies conducted using OpenSees consisted of developing models for the three column models. The analytical models were validated by comparing the results with the experimental data. The models were then used in dynamic analysis to determine the performance of the columns …
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Assessment of seismic design provisions for multi-tiered ordinary concentrically braced frames
… numerical model developed using the OpenSees simulation platform. The results show that the 2010 AISC Seismic Provisions severely underestimate column demands in MT-OCBFs, leading to significant inelastic drift concentration in one tier and column buckling. The 2016 AISC Seismic …
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Soil-Structure Interaction for low damage Seismic Rocking Systems
… rocking for a given rocking amplitude. Within OpenSees, foundation and structural rocking were modelled using a Beam-on-a-Nonlinear-Winkler-Foundation model (BNWF). The modelling incorporated flat-slider elements for footing-soil and superstructure-footing interactions, respectively. A modified …
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Simulation of the In-plane and Out-of-plane Seismic Performance of Nonstructural Partition Walls
… nonlinear material models for the connections in OpenSees. Subsequently, the connection models are employed to propose a novel detailed and yet computationally efficient modeling methodology for nonstructural partition walls. In this methodology, the in-plane and out-of-plane nonlinear behaviors …
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Seismic Performance and Damage Risk of Modular CLT Housing Using Nonlinear Time History Analysis
… each house were developed and calibrated using OpenSees to perform nonlinear static and time history analyses. The Multiple Stripe Analysis procedure was used to derive the conditional probability of collapse fragility curves and interstory drift distributions, which, along with generic damage …
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3DCITYGH: un Approccio Parametrico Speditivo per il Rilievo Urbano Digitale e il City Information Modeling di Modelli Strutturali di isolati urbani.
… dell’ambiente VPL (plugin Karamba3D, Alpaca4D - OpenSees) che in software esterni dedicati all’analisi strutturale (SAP2000, FEM-Design).
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