Response Sensitivity Analysis

This manual is intended to outline the basic commands currently available within the OpenSees interpreter for performing DDM-based response sensitivity analysis. This interpreter is an extension of the Tcl/Tk language for use with OpenSees. The existing Tcl commands for Finite Element response-only computation are described in the OpenSees user’s guide available online at http://opensees.berkeley.edu and, thus, are not repeated in this document. The notation used herein is the same as that used in the Tcl commands manual for response-only computation. Only new Tcl commands for DDM-based response sensitivity computation are presented and explained in detail.

1. DDM-Based Response Sensitivity Computation Tcl Commands commands added to the interpreter to create the finite element model.
2. Demonstration Examples commands added to Tcl to create the analysis procedure.
3. Extension of an existing material,cross section, and element for DDM-based commands aded to Tcl to monitor what is happening in the model during the analysis.
4. Tcl input files for the provided application examples commands added to Tcl to help monitor and modify the model and analysis during the run-time.

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