Seismic performance evaluation of existing RC structures based on hybrid sensing method

  • Jintao Cui
  • Haotao Xie
  • Peng Cui
  • Dookie Kim
S.I.: Emergence in Human-like Intelligence towards Cyber-Physical Systems


The properties of structures such as stiffness and damping ratio are not a constant but varying in time due to material deterioration such as strength degradation, corrosion, crack and fatigue. The seismic performance of an existing structure is generally evaluated based on design drawings and visual inspection data without consideration of the effects of material deterioration. This paper introduces the process of material deterioration of existing reinforced concrete structures and evaluates its effects on their seismic performance by proposing the three-dimensional fragility curve based on hybrid sensing method. The curve shows the probability of failure of structures with respect to load and time. A bridge under the marine environment in service is utilized to demonstrate the changes of seismic performance because of chloride-induced corrosion of steel bars, which is the main cause of deterioration of existing reinforced concrete near-shore structures. The engineers can make their decisions more wisely for design and maintenance of RC structures based on the proposed method.


Seismic performance Material deterioration Existing RC structure 



The authors acknowledge the financial support of the National Natural Science Foundation of China (Grants Nos. 11402166 and 51408400), the General Projects in Tianjin Research Program of Application Foundation and Advanced Technology (Grant No. 13JCYBJC39100), the Youth Projects in Tianjin Research Program of Application Foundation and Advanced Technology (Grant No. 12JCQNJC05000).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.


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© The Natural Computing Applications Forum 2018

Authors and Affiliations

  1. 1.School of Civil EngineeringTianjin Chengjian UniversityTianjinChina
  2. 2.Key Laboratory of Protection and Retrofitting for Civil Building and Construction of TianjinTianjinChina
  3. 3.Engineering InstituteOcean University of ChinaQingdaoChina
  4. 4.Department of Civil EngineeringKunsan National UniversityKunsanRepublic of Korea

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