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104776

Evaluation of Using Modal Testing For Damage Detection in Masonry Arched Barrages.

Article

Last updated: 04 Jan 2025

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Subjects

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Tags

Civil Engineering

Abstract

Modal testing is widely used as a fast and effective tool for structural health monitoring and damage assessment. Old masonry barrages are characterized with their massive and rigid nature. Nevertheless, the complex material configurations make it difficult to be investigated and/or evaluated. This paper examined the ability and the constrains of using modal testing technique with masonry arches considering sensitivity and practicality. Masonry arches of a semi-circular shape with different stiffness and damage conditions were prepared and examined experimentally under static and dynamic tests. The dynamic characteristics for each condition were evaluated. A sound arch was degraded in two manners, the first by decreasing its thickness, while the other by applying severe crack experimentally. Additionally, Numerical investigation was conducted to simulate arches with different damage severities. Finite Element Model was calibrated using the material properties results obtained experimentally. The results of numerical study were compared with the experimental results to investigate the practicality and sensitivity of this technique. It has been noticed that the modal analysis testing can be used with masonry arches to determine any degradation occurred in arches. It is however; found that the technique was not powerful in identifying the reason behind this degradation. Moreover, correlation between the change in fundamental natural frequency and the corresponding reduction in stiffness was investigated.

DOI

10.21608/bfemu.2020.104776

Keywords

Masonry Arches, Modal Testing, Damage detection, Static Loading, Dynamic Testing

Authors

First Name

Ahmed

Last Name

Anwar

MiddleName

M.

Affiliation

Researcher., Construction Research Institute., National Water Research Center., Egypt.

Email

rag_gwi@yahoo.com

City

Mansoura

Orcid

-

First Name

Ahmed

Last Name

Hashad

MiddleName

S.

Affiliation

Associate Professor., Construction Research Institute., National Water Research Center., Egypt.

Email

-

City

-

Orcid

-

Volume

40

Article Issue

6

Related Issue

15885

Issue Date

2015-12-01

Receive Date

2015-07-10

Publish Date

2015-12-01

Page Start

36

Page End

43

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 40_Issue 6_Pages 36-43.pdf

PDF . 265.9kB

Link

https://bfemu.journals.ekb.eg/article_104776.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=104776

Order

5

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

Evaluation of Using Modal Testing For Damage Detection in Masonry Arched Barrages.

Details

Type

Article

Created At

22 Jan 2023