GRAPHICALLY-ORIENTED NONLINEAR ANALYSIS OF STATICALLY LOADED PLANE FRAMES ON MICROCOMPUTERS. FINAL REPORT

Computer program FRAME51 performs a nonlinear analysis of statically loaded plane frames using a discrete element model. Enhancements are made to an existing FORTRAN code using currently available hardware and software. The original code runs on a minicomputer with alphanumeric terminals, while the enhanced version runs on a microcomputer with an improved user interface that includes panel-oriented input and extensive use of graphics. Low level assembly language routines are written to provide functions for manipulating screens, and calls to a commercial software package provide functions for graphical capabilities. The existing code is integrated with the new program as subroutines, but no other modifications are made to facilitate avoidance of new error sources. Panel-oriented input eases the user's burden of creating and editing problems. Graphical representation of input data allows error-checking before execution of the code. In addition to the conventional numerical presentation, output data from analysis is also displayed graphically. A menu structure controls access to various capabilities of the software package. FORTRAN 77 is used as the primary language for new code development.

• Supplemental Notes:
  • Research study title: User-Oriented Analysis Packages for Bridges.
• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011

  Texas State Department of Highways & Public Transportation

  Transportation Planning Division, P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Roschke, P N
  • Aftab, S
• Publication Date: 1989-5

Media Info

• Features: Figures; References;
• Pagination: 52 p.

Subject/Index Terms

• TRT Terms: Computer graphics; Computer programs; Frames; Microcomputers; Nonlinear systems; Software
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Interactive graphics
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00491297
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-90/1183-2, Res Rept 1183-2, TTI: 2-5-88-1183-2
• Contract Numbers: Study 2-5-88/9-1183
• Files: TRIS, USDOT, STATEDOT
• Created Date: Feb 28 1990 12:00AM