Vibration and impedance monitoring for prestress-loss prediction in PSC girder bridges

Kim, Jeong-Tae; Park, Jae-Hyung; Hong, Dong-Soo; Cho, Hyun-Man; Na, Won–Bae; Yi, Jin‐Hak

doi:10.12989/sss.2009.5.1.081

Cited by 56 publications

(31 citation statements)

References 19 publications

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“…Instrumentation of prestressed concrete beam used in the studies of Kim et al() showing piezoelectric sensor in the form of Macro‐Fiber Composite (MFC) patch on anchor plate, highlighted with an arrow…”

Section: Impedance‐based Methodsmentioning

confidence: 99%

“…Subsequent studies focused on the detection of changes in the prestressing force, rather than the absolute force or stress due to the difficulty of analytically relating the stress to the PZT measurements, as illustrated by the aforementioned study. Kim et al combined a global vibration‐based method with a local impedance‐based method to achieve three‐step SHM: (a) damage detection using a damage index based on global frequency responses, that is, detection of prestress loss, (b) characterization of prestress loss using impedance signals, that is, confirming that the change to the damage index is due to prestress loss and not changes to boundary conditions, and (c) prestress loss estimation using modal parameters. The method was applied to a 6‐m prestressed concrete girder in the laboratory instrumented with seven equally spaced accelerometers along the span, as well as a load cell on the jacking end and a PZT patch on the dead end.…”

Section: Impedance‐based Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Monitoring of prestressing forces in prestressed concrete structures—An overview

Abdel-Jaber

Glišić

2019

Struct Control Health Monit

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This paper presents an overview of currently available methods for monitoring prestressing forces in prestressed concrete structure. Structural health monitoring has become an increasingly important tool for assessment of structural performance. Additionally, the value of the prestressing force represents an important parameter in prestressed concrete structures. Thus, several methods for monitoring prestress forces have emerged. This paper aims to consolidate the work performed in the area of prestressing force monitoring by presenting the most important advances and the directions for future research. The methods presented in this paper are based on indirect monitoring of the prestressing force through monitoring of another relevant parameter. They are divided into five general classes based on the relevant parameter they monitor:(a) vibration-based methods (based on acceleration), (b) impedance-based methods (based on electrical impedance), (c) acoustoelastic methods (based on wave velocity), (d) elasto-magnetic methods (based on magnetic permeability), and (e) strain-based methods (based on strain). The paper presents a table summarizing the comparison between the methods based on defined criteria.

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Section: Impedance‐based Methodsmentioning

confidence: 99%

Section: Impedance‐based Methodsmentioning

confidence: 99%

Monitoring of prestressing forces in prestressed concrete structures—An overview

Abdel-Jaber

Glišić

2019

Struct Control Health Monit

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“…Several researchers have proposed damage monitoring methods based on multi-scale sensing of changes in multiphysical quantities of structures [17][18][19][20][21]. On the basis of the hybrid acceleration-impedance monitoring concept, a damage monitoring scheme that can be implemented for steel structural connections is schematized in Fig.…”

Section: Design Of Damage Monitoring Schemementioning

confidence: 99%

Multi-scale hybrid sensor nodes for acceleration-impedance monitoring for steel structural connections

Park

Nguyen

et al. 2011

SPIE Proceedings

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This paper presents hybrid structural health monitoring of steel girder connections using wireless acceleration and impedance sensor nodes based on Imote2-platform. To achieve the research objective, the feasibility of the sensor nodes is examined about its performance for vibration-based global monitoring and impedance-based local monitoring in the structural systems as the following approaches. First, a damage monitoring scheme is described in parallel with global vibration-based methods and local impedance-based methods. Second, multi-scale sensor nodes that enable combined acceleration-impedance monitoring are described on the design of hardware components and embedded software to operate. Third, the performances of the multi-scale sensor nodes are experimentally evaluated from damage monitoring in a lab-scaled steel girder with bolted connection joints.

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“…Up to date, many studies have been focused on SHM of structural connections by using global and local dynamic characteristics [1][2][3][4][5][6][7][8]. The global SHM which usually deals with acceleration-based methods can monitor the structural integrity with several distributed sensors.…”

Section: Introductionmentioning

confidence: 99%

Imote2-based multi-channel wireless impedance sensor nodes for local SHM of structural connections

2011

Self Cite

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This paper presents a technique for local structural health monitoring (SHM) of multiple structural connections by using multi-channel wireless impedance sensor nodes based on Imote2 platform. To achieve the objective, following approaches are implemented. Firstly, an Imote2-based multi-channel wireless impedance sensor node is designed for automated and costefficient impedance-based SHM of structural connections. Secondly, an interface washer associate with impedance measurements is designed to monitor bearing stress which is considered as main effect on structural connections. Finally, performances of the multi-channel wireless impedance sensor node and the interface washer are experimentally validated for a bolted connection model. A damage monitoring method using RMSD index of electro-mechanical impedance signatures is used to examine the strength of each individual bolted connection.

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Vibration and impedance monitoring for prestress-loss prediction in PSC girder bridges

Cited by 56 publications

References 19 publications

Monitoring of prestressing forces in prestressed concrete structures—An overview

Monitoring of prestressing forces in prestressed concrete structures—An overview

Multi-scale hybrid sensor nodes for acceleration-impedance monitoring for steel structural connections

Imote2-based multi-channel wireless impedance sensor nodes for local SHM of structural connections

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