Computers and Concrete

  • 제5권1호
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  • Pages.37-60
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  • 2008
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Identification of reinforced concrete beam-like structures subjected to distributed damage from experimental static measurements

  • Lakshmanan, N. (Structural Engineering Research Centre, CSIR Campus) ;
  • Raghuprasad, B.K. (Department of Civil Engineering, Indian Institute of Science) ;
  • Muthumani, K. (Structural Engineering Research Centre, CSIR Campus) ;
  • Gopalakrishnan, N. (Structural Engineering Research Centre, CSIR Campus) ;
  • Basu, D. (Structural Engineering Research Centre, CSIR Campus)
  • 투고 : 2007.05.15
  • 심사 : 2008.01.29
  • 발행 : 2008.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Structural health monitoring of existing infrastructure is currently an important field of research, where elaborate experimental programs and advanced analytical methods are used in identifying the current state of health of critical and important structures. The paper outlines two methods of system identification of beam-like reinforced concrete structures representing bridges, through static measurements, in a distributed damage scenario. The first one is similar to the stiffness method, re-cast and the second one to flexibility method. A least square error (LSE) based solution method is used for the estimation of flexural rigidities and damages of simply supported, cantilever and propped cantilever beam from the measured deformation values. The performance of both methods in the presence of measurement errors is demonstrated. An experiment on an un-symmetrically damaged simply supported reinforced concrete beam is used to validate the developed method. A method for damage prognosis is demonstrated using a generalized, indeterminate, propped cantilever beam.

키워드

참고문헌

  1. Caddemi, S. and Morassi, A. (2007), "Crack detection in elastic beams by static measurements", Int. J. Solids Struct., 44, 5301-5315. https://doi.org/10.1016/j.ijsolstr.2006.12.033
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피인용 문헌

  1. Management and Maintenance Scheduling of Infrastructural Facilities: Road Map vol.26, pp.6, 2012, https://doi.org/10.1061/(ASCE)CF.1943-5509.0000283
  2. Selection of measurement sets in static structural identification of bridges using observability trees vol.15, pp.5, 2015, https://doi.org/10.12989/cac.2015.15.5.771
  3. Capacity Estimation of Beam-Like Structures Using Substructural Method pp.1793-6764, 2018, https://doi.org/10.1142/S0219455418501626
  4. A simple method to detect cracks in beam-like structures vol.9, pp.4, 2008, https://doi.org/10.12989/sss.2012.9.4.335
  5. A Novel Stochastic Approach for Static Damage Identification of Beam Structures Using Homotopy Analysis Algorithm vol.21, pp.7, 2008, https://doi.org/10.3390/s21072366