Software Developed by FSEL

UT Lift 1.3

PURPOSE: The purpose of this spreadsheet is to provide a tool and give information to an engineer when deciding the safety of lifting a horizontally curved steel I-girder with one crane and two lift clamps. The difference between versions 1.2 and 1.3 are primarily editorial changes.

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UT Bridge 2.1

PURPOSE: UT Bridge is a Windows-based, user-friendly 3-D finite element analysis program that can be used to analyze straight or curved I-girder bridges during girder erection and concrete deck placement. The program uses information readily available to the practicing engineer and develops a robust model to predict the behavior of these bridges, providing the user with displacements, stresses, and rotations. A total revision to the software was carried out in 2016 and the release of Version 2.0 in January 2017 represented a major update to the existing software that was at Version 1.6. Version 2.0 introduced a new pre-processor, solver, eigensolver, and post-processor. Version 2.0 also implemented new element formulations for the webs and flanges as well as numerous new capabilities. The software installation has gone through extensive beta testing. The current Version 2.1 (released April 2017) includes a number of new features that were added to Version 2.0. Additional modifications are underway, so check back for updates in the coming months.

Video training modules have been developed demonstrating both basic use as well as more advanced applications.

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A list of updates to UT Bridge

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UTrAp 2.0

PURPOSE: UTrAp 2.0 is intended to perform both linear analyses and linearized buckling analyses of straight or curved steel trapezoidal box-girder bridges under construction loading. The program is able to model the partially-composite behavior due to concrete curing during the bridge deck pours. UTrAp 2.0 is limited to elastic analyses, and does not account for nonlinear material behavior. There are no limits on stresses in the girder, which may therefore exceed the yield stress. In order for the UTrAp analysis to be valid, care must be taken by the designer to ensure that the bridge remains elastic under the given loading.

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Commercially Available Software Used by FSEL

The Abaqus Unified FEA product suite offers powerful and complete solutions for both routine and sophisticated engineering problems covering a vast spectrum of industrial applications. 

The ANSYS structural analysis software suite enables solutions to complex structural engineering problem. With finite element analysis (FEA) tools, customized and automated simulations can be develop to analyze multiple scenarios. ANSYS Structural Mechanics software easily connects to other physics analysis tools, providing even greater realism in predicting the behavior and performance of complex products.

ATENA is software optimized for nonlinear analysis of reinforced concrete structures. ATENA simulates real behavior of concrete and reinforced concrete structures including concrete cracking, crushing, and reinforcement yielding.

LS-DYNA is a multi-purpose explicit and implicit finite element program used to analyze the nonlinear response of structures. Its fully automated contact analysis and wide range of material models enable users worldwide to solve complex real world problems.

LabView is use at FSEL to serve as the control software for data acquisition systems. Custom LabView interfaces are used to monitor and conduct structural tests using FSEL’s data acquisition hardware.

MATLAB is a high-level language and interactive environment used by millions of engineers and scientists worldwide. It lets you explore and visualize ideas and collaborate across disciplines including signal and image processing, communications, control systems, and computational finance.

SAP2000 is an object-based graphical modeling environment that can be used for a wide variety of analysis and design options. Advanced analytical techniques allow for step-by-step large deformation analysis, Eigen and Ritz analyses based on stiffness of nonlinear cases, catenary cable analysis, material nonlinear analysis with fiber hinges, multi-layered nonlinear shell element, buckling analysis, progressive collapse analysis, energy methods for drift control, velocity-dependent dampers, base isolators, support plasticity and nonlinear segmental construction analysis. 

VecTor is comprised of a suite of programs that are used to perform nonlinear finite element analysis of reinforced concrete structures including beams, columns, walls, plates, shells, and solids. Incorporated into the program’s analysis algorithms are second-order effects such as compression softening due to transverse cracking, tension stiffening, shear slip along crack surfaces, and other mechanisms important in accurately representing the behavior of cracked reinforced concrete structures.