Assessment of flexural stiffness and load carrying capacity using substructural system

Paper

Jamali, S., Koo, K. Y., Chan, T. H. T., Nguyen, A. and Thambiratnam, D. P.. 2018. "Assessment of flexural stiffness and load carrying capacity using substructural system." Chan, Tommy and Mahini, Saeed (ed.) 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application. Brisbane, Australia 05 - 08 Dec 2017 Red Hook, NY, USA.
Paper/Presentation Title

Assessment of flexural stiffness and load carrying capacity using substructural system

Presentation TypePaper
AuthorsJamali, S. (Author), Koo, K. Y. (Author), Chan, T. H. T. (Author), Nguyen, A. (Author) and Thambiratnam, D. P. (Author)
EditorsChan, Tommy and Mahini, Saeed
Journal or Proceedings TitleProceedings of the 8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017)
ERA Conference ID43541
Journal Citation1, pp. 564-574
Number of Pages11
Year2018
Place of PublicationRed Hook, NY, USA
ISBN9781510864573
Web Address (URL) of Paperhttp://www.proceedings.com/39899.html
Conference/Event8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application
International Conference on Structural Health Monitoring of Intelligent Infrastructure
Event Details
International Conference on Structural Health Monitoring of Intelligent Infrastructure
Rank
A
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A
A
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Event Details
8th International Conference on Structural Health Monitoring of Intelligent Infrastructure (SHMII 2017): Structural Health Monitoring in Real-World Application
Event Date
05 to end of 08 Dec 2017
Event Location
Brisbane, Australia
Abstract

The evaluation philosophy of an existing structure must differ from the design philosophy of a new structure. Many parameters are related to the structural properties and among them, stiffness and boundary conditions are governing factors affecting the resistance of the structure to external loading. However, due to the aging and deterioration of structures, effects of boundary conditions change over time and it becomes intricate to understand their current condition for structural assessment. This study was set out to assess the feasibility of estimating flexural stiffness in beam-like structures using substructural bending rigidity identification (SBI) method when no information about 'as-is' fixity of boundary conditions is available. The results of numerical and experimental analyses showed that the SBI method accurately estimates the flexural stiffness of various beam profiles having unknown boundary conditions. It was found that using estimated stiffness, analytical model can be tuned with updated support fixities and structural and modal characteristics, which are then used for detection of the critical member, worst load effect and evaluation of serviceable load carrying capacity. Findings from this study provided evidence that SBI can be efficiently implemented as a short-term monitoring tool with easy testing setup for in-operation structural integrity assessment of beam-type elements. © 2017 International Society for Structural Health Monitoring of Intelligent Infrastrucure.

Keywordsbeam; boundary condition; load carrying capacity; load rating; stiffness; substructural system
ANZSRC Field of Research 2020400510. Structural engineering
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Byline AffiliationsQueensland University of Technology
University of Exeter, United Kingdom
Institution of OriginUniversity of Southern Queensland
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Pathirage, Thisara S., Chan, Tommy H. T., Thambiratnam, David P., Nguyen, Andy and Moragaspitiya, H. N. P.. 2018. "Prestress evaluation in prestressed concrete plate-like structures." International Journal of Lifecycle Performance Engineering. 2 (3/4), pp. 127-143. https://doi.org/10.1504/IJLCPE.2018.094855
Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space
Nguyen, Khac-Duy, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2019. "Damage identification in a complex truss structure using modal characteristics correlation method and sensitivity-weighted search space." Structural Health Monitoring: an international journal. 18 (1), pp. 49-65. https://doi.org/10.1177/1475921718809471
Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2019. "Reliability-based load carrying capacity assessment of bridges using structural health monitoring and nonlinear analysis." Structural Health Monitoring: an international journal. 18 (1), pp. 20-34. https://doi.org/10.1177/1475921718808462
Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data
Nguyen, Andy, Kodikara, K. A. Tharindu Lakshitha, Chan, Tommy H. T. and Thambiratnam, David P.. 2019. "Deterioration assessment of buildings using an improved hybrid model updating approach and long-term health monitoring data." Structural Health Monitoring: an international journal. 18 (1), pp. 5-19. https://doi.org/10.1177/1475921718799984
Vibration characteristics and damage detection in a suspension bridge
Wickramasinghe, Wasanthi R., Thambiratnam, David P., Chan, Tommy H. T. and Nguyen, Theanh. 2016. "Vibration characteristics and damage detection in a suspension bridge." Journal of Sound and Vibration. 375, pp. 254-274. https://doi.org/10.1016/j.jsv.2016.04.025
Capacity Estimation of Beam-Like Structures Using Substructural Method
Jamali, Shojaeddin, Chan, Tommy H. T., Koo, Ki-Young, Nguyen, Andy and Thambiratnam, David P.. 2018. "Capacity Estimation of Beam-Like Structures Using Substructural Method." International Journal of Structural Stability and Dynamics. 18 (12), pp. 1-17. https://doi.org/10.1142/S0219455418501626
Moving force identification based on modified preconditioned conjugate gradient method
Chen, Zhen, Chan, Tommy H. T. and Nguyen, Andy. 2018. "Moving force identification based on modified preconditioned conjugate gradient method." Journal of Sound and Vibration. 423, pp. 100-117. https://doi.org/10.1016/j.jsv.2017.11.034
Method development of damage detection in asymmetric buildings
Wang, Yi, Thambiratnam, David P., Chan, Tommy H.T. and Nguyen, Andy. 2018. "Method development of damage detection in asymmetric buildings." Journal of Sound and Vibration. 413, pp. 41-56. https://doi.org/10.1016/j.jsv.2017.10.015
Prestress and excitation force identification in a prestressed concrete box–girder bridge
Xiang, Ziru, Chan, Tommy H. T., Thambiratnam, David P. and Nguyen, Andy. 2017. "Prestress and excitation force identification in a prestressed concrete box–girder bridge." Computers and Concrete. 20 (5), pp. 617-625. https://doi.org/10.12989/cac.2017.20.5.617
Toward effective structural identification of medium-rise building structures
Nguyen, A., Kodikara, K. A. T. L., Chan, T. H. T. and Thambiratnam, D. P.. 2018. "Toward effective structural identification of medium-rise building structures." Journal of Civil Structural Health Monitoring. 8 (1), pp. 63-75. https://doi.org/10.1007/s13349-017-0259-y
Modelling techniques for structural evaluation for bridge assessment
Jamali, Shojaeddin, Chan, Tommy H. T., Nguyen, Andy and Thambiratnam, David P.. 2018. "Modelling techniques for structural evaluation for bridge assessment." Journal of Civil Structural Health Monitoring. 8 (2), pp. 271-283. https://doi.org/10.1007/s13349-018-0269-4
Damage detection in asymmetric buildings using vibration-based techniques
Wang, Y., Thambiratnam, D. P., Chan, T. H. T. and Nguyen, A.. 2018. "Damage detection in asymmetric buildings using vibration-based techniques." Structural Control and Health Monitoring. 25 (5), pp. 1-19. https://doi.org/10.1002/stc.2148
Response of tall buildings with symmetric setbacks under blast loading
Jayatilake, I. N., Dias, W. P. S., Jayasinghe, M. T. R. and Thambiratnam, D. P.. 2010. "Response of tall buildings with symmetric setbacks under blast loading." Journal of the National Science Foundation of Sri Lanka. 38 (2), pp. 115-123. https://doi.org/10.4038/jnsfsr.v38i2.2043