GGSD Program Details for PYWALL

PYWALL

Category	Retaining wall design
Publisher	Ensoft Inc
Platform	Win95/98, WinNT
Status	Commercial
Description	PYWALL considers the soil-structure-interaction by using a generalized beam-column model and analyzes the behavior of a flexible retaining wall or soldier pile wall with or without tiebacks or bracing systems. Displacement or rotational restraint may be specified at any depth of the wall to simulate the bracing or tieback. The user may also specify active earth pressure as a distributed load, or ask the program to generate the earth pressure. Passive soil resistance can be represented either by linear springs or non-linear soil-resistance curves. The program will calculate the earth pressure above the dredge line, wall deflection, shear force, bending moment, and force on the strut. Input parameters consist of the geometry of the retaining wall, structural properties of the wall element, restrained conditions applied on the wall by the tiebacks or other bracing systems, soil resistance curves, soil unit weight, strength parameters, and the water table. Soil behavior is modeled with p-y curves internally generated by the computer program following published recommendations for various types of soils; alternatively, the user can manually introduce external p-y curves. Special procedures are programmed for developing p-y curves for layered soils and for rock. It can automatically generate group-reduction factors for timber-lagging walls and drilled-shaft retaining walls. The p-y factors are generated by the program based on the specified spacing between piles in the same row. Alternatively, users may input any external set of reduction factors to account for closely-spaced piles or for any other condition that may change the lateral response of the soils. A load factor can be specified to increase or decrease the magnitude of earth pressure generated by the program. A different height of the water table can be set in the backfill side and the excavation side.
Cost	US Dollars 750
Data formats supported	None stated
Supplier in United States of America	Ensoft Inc