UTrAp

Installing the Application

Download the software utrap.zip for Windows
Extract the files from the zip file and Run Setup.exe
Follow the instructions on the screen

Note

A license file is required to run the program. The license file should be stored in the directory where the UTrAp application is stored. Contact Prof. Eric Williamson to receive a copy of the license file.

User's Manual and Example Problem

Download the document in PDF format

Publications on Curved Girder Research

Topkaya, C., Yura, J. A., and Williamson, E. B. (2004).“Composite Shear Stud Strength at Early Concrete Ages.” ASCE Journal of Structural Engineering, Vol. 130, No. 6, pp. 952-960.
Topkaya, C., Williamson, E. B., and Frank K. H. (2004). “Behavior of Curved Steel Trapezoidal Box Girders during Construction.” Engineering Structures, Vol. 26, No. 6, pp. 721-733.
Topkaya, C. and Williamson, E. B. (2003). “Development of Computational Software for Analysis of Curved Girders under Construction Loads.” Computers and Structures, Vol. 81, No. 21, pp. 2087-2098.

E-mail to ewilliamson@mail.utexas.edu

A computer program developed for the Analysis of Curved Steel Box Girders During Construction

UTrAp was originally developed by Cem Topkaya and Eric B. Williamson at the University of Texas at Austin.

Program Definition:

UTrAp is a software package developed for pour sequence analysis of curved, trapezoidal steel box girders. Single and dual girder systems with a constant radius of curvature can be analyzed with this program. The software consists of a Graphical User Interface (GUI) and an analysis module. The analysis module relies on the finite element method to compute the response of a three-dimensional bridge structure. Input data is supplied to the program through use of a GUI. The program can handle multiple analysis cases and has graphics capability to visualize the output.

*** NEW -- UTrAp 2.0 is now available ***

Version 2.0 was developed by Daniel Popp and Eric B. Williamson to extend the capbilities of the original software. Most significantly, it offers the capability of performing an eignevalue buckling analysis, and it allows for exporting results to Excel. Other enhancements are described in the updated User's Manual.