Validation Report: Computer Program for Design and Analysis of Inverted-T Retaining Walls and Floodwalls (TWDA).
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
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This report presents a series of example problems and their solutions that verify the accuracy of computer program TWDA T wall designanalysis. TWDA is a user-oriented conversationally interactive, modular time-sharing program system for computer-aided structural design and analysis of inverted-T retaining walls and floodwalls founded on earth or rock. The program is divided into three major sections the executive command phase, the stability group of modules, and the structural group of modules a The executive command phase is where the program starts executing and where it returns to after running the computational modules. Commands and data are entered in this phase of the program b The stability group of computational modules computes active earth pressures and determines overturning and sliding stability and c The structural group of computational modules performs a stress analysis of the wall or designs for minimum slab thicknesses. The philosophy of TWDA is to a ensure minimum-cost adequate design based on current codes and criteria, independent of the users experience, and b to promote the use of personal judgment and imagination through man-machine interaction.
- Civil Engineering
- Structural Engineering and Building Technology