Professor Haselton's research is in the general area of performance-based structural earthquake engineering. His primary research focuses on assessing the collapse safety of buildings in earthquakes; this involves many issues, including:
- ground motion selection and scaling,
- nonlinear structural modeling,
- experimental testing issues related to calibration of nonlinear structural models,
- dynamic collapse simulation, and the
- treatment of uncertainties (in both the ground motion and the structural modeling).
Professor Haselton is interested in bringing these related sub-disciplines of research together (ground motions, structural modeling, and probability/uncertainty) for the common goal of answering the question of how safe buildings are in earthquakes. His past research in this area has focused on modern reinforced concrete frames, but he is also interested in other types of modern building systems (concrete shear walls, etc.) as well as older non-ductile concrete frame buildings.
In addition to the specific goal of assessing collapse safety, Professor Haselton is also interested in other related problems in structural earthquake engineering, such as ground motion selection and scaling for assessing other types of structural responses (interstory drift, floor accelerations, etc.), structural damage assessment, and the creation of codified and consensus documents for structural performance assessment (e.g. FEMA P695 which is commonly referred to as ATC-63).