{"id":57,"date":"2015-05-11T16:16:29","date_gmt":"2015-05-12T00:16:29","guid":{"rendered":"http:\/\/research.engineering.ucdavis.edu\/see\/?page_id=57"},"modified":"2015-05-11T16:16:29","modified_gmt":"2015-05-12T00:16:29","slug":"cumulative-damage-assessment-of-structures-under-intense-seismic-loading","status":"publish","type":"page","link":"https:\/\/research.engineering.ucdavis.edu\/see\/cumulative-damage-assessment-of-structures-under-intense-seismic-loading\/","title":{"rendered":"Cumulative Damage Assessment of Structures under Intense Seismic Loading"},"content":{"rendered":"

Funded by the National Science Foundation’s Research Initiation Grant. Investigators – Y. H. Chai<\/a> <\/span>and K. M. Romstad.<\/p>\n

Abstract:<\/span><\/i><\/span> Although the potential for cumulative damage of structures during long duration earthquakes is generally recognized, most design codes do not explicitly take into the damage potential of such events. The traditional use of displacement ductility factor as an implicit damage parameter in design codes is inadequate, since it is implicitly assume that structural damage occurs only due to the maximum deformation and is independent of the number of non-peak inelastic cycles or plastic strain energy dissipation. This project addressed the issues in the cumulative damage assessment of structures using energy-based linear damage model and the classical low-cycle fatigue damage model. A methodology for the formulation of duration-dependent inelastic design spectra is proposed.<\/span><\/p>\n

Key Publications:<\/span><\/i><\/span><\/p>\n