Show simple item record

contributor authorL. M. Sun; W. Zhang; S. Nagarajaiah
date accessioned2019-03-10T12:20:17Z
date available2019-03-10T12:20:17Z
date issued2019
identifier other%28ASCE%29BE.1943-5592.0001325.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4255349
description abstractIn this paper, a new real-time damage identification method has been presented for bridge structural health monitoring (SHM) considering temperature variation. The method utilizes model-based damage identification that involves three major steps: (1) efficient basis functions—extracted from finite-element (FE) models prior to real-time identification; (2) partial least-squares regression (PLSR) analyses; and (3) the fusion of different types of structural responses into damage indicator. By treating local damages as equivalent vertical loads and then cross-referencing global (inclinations) and local (strain) data, the hidden damage information in bridge structures can be detected and localized in a timely fashion, even in the presence of unknown temperature variation as well as vehicle loads. Inclinations alone cannot reflect local damages, but by fusing inclinations and strains (that represent local damage) into the proposed damage indicator, local damages can be identified. Numerical simulations on a medium-span continuous bridge demonstrate that the proposed method is insensitive to measurement noise and some common modeling errors, revealing the potential of real-time damage identification in bridge SHM applications.
publisherAmerican Society of Civil Engineers
titleBridge Real-Time Damage Identification Method Using Inclination and Strain Measurements in the Presence of Temperature Variation
typeJournal Paper
journal volume24
journal issue2
journal titleJournal of Bridge Engineering
identifier doi10.1061/(ASCE)BE.1943-5592.0001325
page04018111
treeJournal of Bridge Engineering:;2019:;Volume ( 024 ):;issue: 002
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record