Earthquakes and Structures

  • 제7권5호
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  • Pages.609-626
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  • 2014
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  • 2092-7614(pISSN)
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  • 2092-7622(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Advancing behavioral understanding and damage evaluation of concrete members using high-resolution digital image correlation data

  • Sokoli, Drit (Department of Civil Architectural and Environmental Engineering, University of Texas at Austin) ;
  • Shekarchi, William (Department of Civil Architectural and Environmental Engineering, University of Texas at Austin) ;
  • Buenrostro, Eliud (JQ Dallas) ;
  • Ghannoum, Wassim M. (JQ Dallas)
  • 투고 : 2014.04.20
  • 심사 : 2014.05.07
  • 발행 : 2014.11.25
⟨ 이전 논문 다음 논문 ⟩

초록

The capabilities of a high-resolution Digital Image Correlation (DIC) system are presented within the context of deformation measurements of full-scale concrete columns tested under reversed cyclic loading. The system was developed to have very high-resolution such that material strains on the order of the cracking stain of concrete could be measured on the surface of full-scale structural members. The high-resolution DIC system allows the measurement of a wide range of deformations and strains that could only be inferred or assumed previously. The DIC system is able to resolve the full profiles of member curvatures, rotations, plasticity spread, shear deformations, and bar-slip induced rotations. The system allows for automatic and objective measurement of crack widths and other damage indices that are indicative of cumulated damage and required repair time and cost. DIC damage measures contrast prevailing proxy damage indices based on member force-deformation data and subjective damage measures obtained using visual inspection. Data derived from high-resolution DIC systems is shown to be of great use in advancing the state of behavioral knowledge, calibrating behavioral and analytical models, and improving simulation accuracy.

키워드

과제정보

연구 과제 주관 기관 : NUCOR Steel Seattle, the Concrete Reinforcing Steel Institute

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피인용 문헌

  1. Modeling of anchored CFRP strips bonded to concrete vol.85, 2015, https://doi.org/10.1016/j.conbuildmat.2015.03.096
  2. Performance of Concrete Panels Reinforced with Carbon Fiber–Reinforced Polymer Materials vol.21, pp.3, 2017, https://doi.org/10.1061/(ASCE)CC.1943-5614.0000758
  3. Behavior of Reinforced Concrete Panels Strengthened with Carbon Fiber-Reinforced Polymers vol.113, pp.5, 2016, https://doi.org/10.14359/51689031
  4. Use of Anchored Carbon Fiber-Reinforced Polymer Strips for Shear Strengthening of Large Girders vol.115, pp.1, 2018, https://doi.org/10.14359/51701092
  5. High-Strength Reinforcement in Columns under High Shear Stresses vol.113, pp.3, 2016, https://doi.org/10.14359/51688203
  6. Behavior of Anchored Carbon Fiber-Reinforced Polymer Strips Used for Strengthening Concrete Structures vol.113, pp.2, 2014, https://doi.org/10.14359/51688637
  7. Influence of Anchor Size on Anchored CFRP Systems vol.23, pp.5, 2014, https://doi.org/10.1061/(asce)cc.1943-5614.0000954
  8. High-Strength Reinforcing Steel Bars: Low Cycle Fatigue Behavior Using RGB Methodology vol.15, pp.1, 2014, https://doi.org/10.1186/s40069-021-00474-9
  9. Nondestructive Assessment of Elastomeric Bridge Bearings Using 3D Digital Image Correlation vol.148, pp.1, 2014, https://doi.org/10.1061/(asce)st.1943-541x.0003200