II-DAP

II-DAP is a standalone MATLAB-based software 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 bilinear models to state-of-the-art deteriorating bilinear pinched and peak-oriented responses. A seismic hazard module is also included for the quantification of collapse risk. IIDAP is highly beneficial for both educational and research purposes.

Tutorial videos can be found at this YouTube playlist

Download here

II-DAP main console

FM-2D

Frame Modeler 2D is an open-source MATLAB-based computational platform for automated modeling and analyzing building assets in OpenSees using state-of-the-art modeling and dynamic analyses guidelines. The current version supports steel MRFs, CBFs, EBFs, and RC MRFs.

Tutorial videos can be found at this YouTube playlist

Download installation file and source code here

FM-2D main console FM-2D procedures

FM-2D local response

FM-2D PH progression

EaRL

EaRL is an open source MATLAB-based platform/software for earthquake risk, loss and lifecycle analysis. EaRL provides an interactive and user-friendly platform for evaluating the economic consequences of natural hazards in general, and seismic hazard in particular, on building assets, in support of the performance-based earthquake engineering framework (e.g., FEMA P-58). The platform is supported by a comprehensive library for visualizing and reporting the disaggregated economic losses (repair cost, repair time, injuries, casualties, etc). Being an open-source platform, developed in the popular MATLAB environment, EaRL paves the way for researchers and practicing engineers worldwide to collaborate and contribute to its metadata, functionalities and interactive features. This is further supported by the platform’s well-documented technical details and codebase.

Tutorial videos can be found at this YouTube playlist

Download here

EaRL main console

EaRL visualization gif

SRConED

SRConED is an interactive interface for exploring and processing a recently-collated comprehensive experimental database for bare steel and composite semi-rigid (SR) connections. The current version of the database (v2.2405) include data for flush and extended endplate connections covering more than 2000 tests from more than 150 experimental programs. Data for other SR connections will be rolled out in future versions.

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SRConED main console

SRConED gif

GM Inspector

GM-Inspector is a visual tool for importing ground motion acceleration record files of different formats simply and intuitively. The properties of the ground motion can then be inspected through an interactive interface. This includes plots of the acceleration, velocity and displacement histories as well as the Fourier transformation and acceleration response spectrum. Additionally, other parameters are quantified such as the effective duration and filtered-incremental-velocity (FIV3).

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GM-Inspector main console

Bolt Connector App

Bolt Connectpr App is a GUI tool for generating the full-range trilinear force-elongation tensile response of high-strength steel bolts, considering uncertainty. This can be used in FE models where the bolt is modeled as an axial connector or in mechanical component-based models where the bolt is modeled as an axial spring. The model is applicable to most bolted connections where the bolts under dominant tension (i.e., with shear to tension ratio less than 0.2) such as endplate, T-stub, and top&seat angle connections..

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Bolt Connector App Interface