Institutional-Repository, University of Moratuwa.  

Detection and estimation of damage in framed structures using modal data

Show simple item record

dc.contributor.author De Silva, WARK
dc.contributor.author Lewangamage, CS
dc.contributor.author Jayasinghe, MTR
dc.date.accessioned 2019-10-22T05:55:57Z
dc.date.available 2019-10-22T05:55:57Z
dc.identifier.uri http://dl.lib.mrt.ac.lk/handle/123/15171
dc.description.abstract The inevitable ageing and degradation of buildings and the structural failures that follow, have ignited a need for early prognosis of probable structural failures so that proactive measures can be undertaken. Hence, one of the important steps of structural health monitoring (SHM) process is the detection of damage location and estimation of damage severity. Modal data can be effectively used for this purpose owing to their sole dependency on mechanical characteristics of a structure. This study presents a damage detection methodology based on mode shape derivatives such as mode shape slope (MSS) and mode shape curvature (MSC) for a symmetric experimental steel frame model. Furthermore, an extended parametric analysis has been performed using a calibrated finite element model to investigate damage localization and quantify severity. The study provides key conclusions about the effect of boundaries on the damage detection method for the steel frame model. Furthermore, damage detection using MSC is identified to be more sensitive as opposed to MSS method. en_US
dc.language.iso en en_US
dc.subject Structural health monitoring en_US
dc.subject Modal based damage detection en_US
dc.subject Damage localization en_US
dc.subject Damage severity en_US
dc.subject Frame structure, en_US
dc.subject Shaking table en_US
dc.subject Finite element model en_US
dc.title Detection and estimation of damage in framed structures using modal data en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Civil Engineering en_US
dc.identifier.year 2019 en_US
dc.identifier.conference Moratuwa Engineering Research Conference - MERCon 2019 en_US
dc.identifier.place Moraruwa, Sri Lanka en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record