II-DAP: Interactive Interface for Dynamic Analysis Procedures

II-DAP is a publicly-available standalone MATLAB-based program that was developed at the Resilient Steel Structures Laboratory (RESSLAB) in Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland. With 10K+ lines of code, II-DAP is capable of performing a variety of dynamic analysis procedures, ranging from simple response history analysis to response spectrum and incremental dynamic analyses, on single degree-of-freedom systems (SDoF). IIDAP includes a wide-ranging library of SDoF system models ranging from simple non-deteriorating linear and bi-linear models to state-of-the-art deteriorating bi-linear, pinched, peak-oriented and self-centering responses. A seismic hazard module is also included for the quantification of collapse risk. II-DAP is highly beneficial for both educational and research purposes.