Assessment & PBD to ASCE/SEI 41

Assessment & PBD to ASCE/SEI 41

ASCE/SEI 41-17—“Seismic Evaluation and Retrofit of Existing Buildings”—is the industry standard for assessing seismic performance in existing structures. Moreover, it uses performance-based design principles. Consequently, the standard defines a three-tier process: initial screening, detailed analysis (linear & nonlinear), and acceptance checks against clear performance objectives. Additionally, it covers both deficiency-based and capacity-driven approaches. Finally, foundations, structural frames (steel, concrete, masonry, wood, cold-formed steel), nonstructural components, and specialized systems (seismic isolation, energy dissipation) must all meet set safety and functionality levels under seismic loading.

In the attached document, seismic definitions provided in the ASCE 41/17 and the building assessment based on this code are explained in detail, including both linear and nonlinear procedures. Furthermore, the application in ProtaStructure is described in detail with the introduction of the model used for the example case study.



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