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|Title:||User's guide for the incremental construction, soil-structure interaction program SOILSTRUCT with far-field boundary elements|
|Authors:||Virginia Polytechnic Institute and State University. Charles E. Via Department of Civil Engineering.|
Computer-Aided Structural Engineering Project (U.S.)
Zarco, Mark A.
Ebeling, Robert M., 1954-
|Keywords:||Boundary element method|
Finite element method
|Publisher:||Information Technology Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Technical report (U.S. Army Engineer Waterways Experiment Station) ; ITL-94-2.|
Abstract: This report describes the computer program SOILSTRUCT, a two-dimensional, plane strain, finite element program used in the incremental construction, soil-structure interaction analysis of earth retaining structures. The initial version of the program was developed by Professors G. W. Clough and J. M. Duncan (1969) for use in the analysis of Port Allen and Old River U-frame locks. The program has been enhanced over the last 20 years by Professor Clough and coworkers. In this version of SOILSTRUCT, a substructure method for coupling the boundary element method (BEM) with the fmite element method (FEM) is incorporated in order to solve soil-structure interaction problems more accurately and efficiently so that the nonlinear effects can be included in the near field by FEM, while the far field is simulated by BEM. Linear boundary elements based on the Melan fundamental solution are coupled with the QM5 finite elements. SOILSTRUCT has the capability to simulate incremental construction which may include embankment construction or backfilling, dewatering, excavation, installation of a strut or tie back anchor support system, removal of the same system, and the placement of concrete or other construction material. In addition, SOILSTRUCT has the capability to include the modeling of the interface region between the soil backfill and the structure, using interface elements.
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