A study on fatigue life of RC bridge and its improvement methods

 
 
 
  • Abstract
  • Keywords
  • References
  • PDF
  • Abstract


    Fatigue is a crucial factor which affects the total life and serviceability of highway bridges. There are several factors that contribute to the development of fatigue in RC bridges. Among them, traffic loads, wind loads and corrosion of reinforcement are some of the important factors to name a few. In order to address these fatigue issues and improve the fatigue life of highway bridges, many improvement meth- ods have been suggested in the literature. This study attempts to investigate the effectiveness of various improvement methods suggested in the literature. The improvement methods that has been included in this study are externally bonded reinforcement and deck overlay. To accomplish the objective, an existing highway bridge was selected based on the structural details and traffic data and then various improvement methods were applied to analyze its improvement in fatigue life. For analysis, an embedded reinforcement modeling was carried out in ANSYS followed by a nonlinear analysis in ANSYS workbench. The results of the study were found to be in alignment with AASTHO LRFD (2007), IRC SP 60(2002), IRC 6 (2014), IRC SP 37 (2010) and IRC 37 (2012) codal provisions.

     


  • Keywords


    ANSYS Workbench; Carbonation; Deck Overlay; Externally Bonded Reinforcement; Fatigue; Palm-Gren Miner’s Rule

  • References


      [1] AASTHO (American Association of State Highway and Transpor- tation Officials) 2007. « AASTHO LRFD Bridge design specifica- tions 4th edition ». American Association of State Highway and Transportation Officials, Washington DC.

      [2] Bakis, Charles E, Ganjehlou, I. Kachlakev, Schupack, P. N. Bala- guru, Duane J. Gee et al. 2002. “Guide for the design and construc- tion of externally bonded FRP systems for strengthening concrete structures”. Reported by ACI Committee. 440.

      [3] Ellobody. 2011. “Performance of Composite Girders Strengthened Using Carbon Fiber Reinforced Polymer Laminates”. Thin-Walled Structures.49 1429–1441.

      [4] El-Ragaby, El-Salakawy, and Benmokrane. 2007. “Fatigue Life Evaluation of Concrete Bridge Deck Slabs Reinforced with Glass FRP Composite Bars”. Journal of Composites for Construction. doi: 10.1061/(ASCE)1090-0260(2007)11:3(58).

      [5] Gama.1999. “Durability of Epoxy Polymer Concrete Overlays for Bridge Decks”. A thesis report McGill University.

      [6] Habeeba A., Sabeena M.V., and Anjusha R. 2015. “Fatigue evalua- tion of Reinforced Concrete Highway Bridge”. International Journal of Innovative Research in Science, Engineering and Technology.4 (4): 2561-2569.

      [7] IRC (Indian Roads Congress): (6 – 2014). “Standard specifications and code of practice for road bridges section: ii loads and stresses (revised edition)”. Indian Road Congress, New Delhi, India.

      [8] IRC (Indian Roads Congress): (37 - 2012). “Tentative guidelines for the design of flexible pavements”. Indian Road Congress, New Delhi, India.

      [9] IRC (Indian Roads Congress): (SP 37 - 2010). “Guidelines for evaluation of load carrying capacity of bridges”. Indian Road Con- gress, New Delhi, India.

      [10] IRC (Indian Roads Congress): (SP 60 - 2002). “An approach doc- ument for assessment of remaining life of concrete bridges”. Indian Road Congress, New Delhi, India.

      [11] K. M. Mini, Alapatt, R. John, David, A. Elizabeth, Radhakrishnan A, Cyriac, M. Maria, and Ramakrishnan R. 2014. “Experimental study on strengthening of R.C beam using glass fiber reinforced composite”. Structural Engineering and Mechanics.50: 275-286.

      [12] Kong B., Cai C. S., and Kong X. 2013. “Thermal behaviors of con- crete and steel bridges after slab replacements with GFRP honey- comb sandwich panels”. Engineering Structures.56: 2041–2051.

      [13] M. Puurula, Enochsson, Sas, Blanksvärd, Ohlsson, Bernspång, Taljsten, Carolin, Paulsson, and Elfgren. “Assessment of the Strengthening Of an RC Railway Bridge with CFRP Utilizing a Full-Scale Failure Test and Finite-Element Analysis”. Journal of StructuralEngineering. Doi: 10.1061/ (ASCE) ST.1943- 541X.0001116.

      [14] Seon Ji, Byun, Chang-Soo Lee, Byung-Jik Son, and John Ma Z. 2011. “Structural performance of composite sandwich bridge decks with hybrid GFRP–steel core”. Composite Structures.93: 430–442.

      [15] Theres N Kurian, Anna Varghese, and Divya K K. 2013. “Fatigue Analysis of Glass Fiber Reinforced Polymer (GFRP) Bridge Deck Panels”. International Journal of Innovative Research in Science, Engineering and Technology 2 (1) 174-180.

      [16] Verma and Arora.2015. “Replacement of natural sand in concrete by polyethylene bottles”. International Research Journal of Engineering and Technology. 02 (01) 120-124.

      [17] Wang, Deng, and Shao. 2016. “Fatigue design of steel bridges con- sidering the effect of dynamic vehicle loading and overloaded trucks”. Journal Bridge Engineering.21 (9). doi: 10.1061/(ASCE)BE.1943-5592.0000914.

      [18] Yohannan and Susan Raj. 2015. “Finite element analysis of bridge deck slab”. International Journal of Science, Engineering and Tech- nology. 3 (5) : 1246-1248

      [19] YongSheng and YouLiang. 2013. “Fatigue monitoring and analysis of orthotropic steel deck considering traffic volume and ambient temperature”. Sci China Tech Sci. 56: 1758 1766. doi: 10.1007/s11431-013-5235-0.

      [20] Zhang W., and Yuan H. 2014. “Corrosion fatigue effects on life estimation of deteriorated bridges under vehicle impacts”. ELSE- VIER Engineering Structures.71: 128–136.


 

View

Download

Article ID: 25069
 
DOI: 10.14419/ijet.v7i4.5.25069




Copyright © 2012-2015 Science Publishing Corporation Inc. All rights reserved.