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Crack width control of precast deck loop joints for continuous steel-concrete composite girder bridges

  • Shim, Changsu (Department of Civil Engineering, College of Engineering, Chung-Ang University) ;
  • Lee, Chidong (Department of Civil Engineering, College of Engineering, Chung-Ang University)
  • Received : 2019.02.08
  • Accepted : 2020.06.15
  • Published : 2020.07.25

Abstract

Precast deck joints have larger crack width than cast-in-place concrete decks. The initial crack typically occurs at the maximum moment but cracks on precast joints are significant and lead to failure of the deck. The present crack equation is applied to cast-in-place decks, and requires correction to calculate the crack width of precast deck joints. This research aims to study the crack width correction equation of precast decks by performing static tests using high strength and normal strength concrete. Based on experimental results, the bending strength of the structural connections of the current precast deck is satisfied. However it is not suitable to calculate and control the crack width of precast loop connections using the current design equation. A crack width calculation equation is proposed for crack control of precast deck loop joints. Also included in this paper are recommendations to improve the crack control of loop connections.

Keywords

Acknowledgement

This research was supported by a grant (19SCIP-B128570-03) from Smart Civil Infrastructure Research Program funded by Ministry of Land, Infrastructure and Transport of Korean Government and was also supported by the Chung-Ang University research grant in 2019.

References

  1. AASHTO LRFD (2013), AASHTO LRFD Bridge Design Specifications, American Association of State Highway and Transportation Officials, Washington, D.C., USA.
  2. ACI 318-14 (2014), Building Code Requirements for Structural Concrete and Commentary and Notes, American Concrete Institute, ACI Committee 318, Detroit, USA.
  3. Bazant, Z.P. and Oh, B.H. (1983), "Spacing of cracks in reinforced concrete", J. Struct. Eng., ASCE, 109(9), 2066-2085. https://doi.org/10.1061/(ASCE)0733-9445(1983)109:9(2066).
  4. Beeby, A.W. (1970), "An investigation of cracking in slabs spanning one way", Cement and Concrete Association, Technical Report 42.433, London, UK.
  5. Beeby, A.W. (1971), "Prediction and control of flexural cracking in reinforced concrete members, cracking, deflection and ultimate load of concrete slab systems", American Concrete Institute, SP-20.
  6. Beeby, A.W. (1979), "The prediction of crack widths in hardened concrete", Struct. Eng., 57A(1), 9-17.
  7. CEB (1993), CEB-FIP Model Code 1990, Comite Euro-International Du Beton, Thomas Telford Services Ltd., London, UK.
  8. Creazza, G. and Russo, S. (1999), "A new model for predicting crack width with different percentages of reinforcement and concrete strength classes", Mater. Struct., 32, 520-524. https://doi.org/10.1007/BF02481636.
  9. DIN (1978), DIN 1045, Concrete and Reinforced Concrete Structures, Design and Construction (Beton und Stahlbetonban-Bemessung und Ausfuhrung), Deutsches Institut fur Normung e. V., Berlin, Germany.
  10. EN 1992-1-1 (2005), Eurocode 2-Design of Concrete Structures-Part 1-1: General Rules and Rules for Buildings, European Committee for Standardization.
  11. Gillen, S., Gancarz, D. and Tayabji, S.D. (2018), Precast Concrete Panels for Rapid Full-Depth Repair of CRC Pavement to Maintain Continuity of Longitudinal Reinforcement: [techbrief] (No. FHWA-HIF-18-050), Federal Highway Administration, USA.
  12. Hallmark, R., White, H. and Collin, P. (2012), "Prefabricated bridge construction across Europe and America", Am. Soc. Civil Eng., 17(3), 82-92. https://doi.org/10.1061/(ASCE)SC.1943-5576.0000116.
  13. Ji, SW. (2014) "Structural performance of connections in decked bulb tee girder bridges", Master Thesis, Chung-Ang University, South Korea.
  14. Joergensen, H. and Hoang, L. (2013), "Tests and limit analysis of loop connections between precast concrete elements loaded in tension", Eng. Struct., 52, 558-569. https://doi.org/10.1016/j.engstruct.2013.03.015.
  15. Joergensen, H.B. and Hoang, L.C. (2015), "Strength of loop connections between precast bridge decks loaded in combined tension and bending", Struct. Eng. Int., 25(1), 71-80. https://doi.org/10.2749/101686614X14043795570697.
  16. Kim, D.H., Choi, J.W., Kim, H.Y. and Park, S.K. (2013), "An experimental study on behavior of transverse connection appropriate for modular girder bridge", Int. J. Civil Environ. Struct. Constr. Arch. Eng., 7(5), 358-366.
  17. Kim, D.W. and Shin, J.R. (2016), "An experimental study on the flexural performance of modular slab connections with loop joints", J. Korea Academia-Indus. Coop. Soc., 17(1), 459-467. https://doi.org/10.5762/KAIS.2016.17.1.459.
  18. Lewis, S. (2009), "Experimental investigation of precast bridge deck joints with U-bar and headed bar joint details", University of Tennessee, Knoxville, USA.
  19. Ma, Z.J., Cao, Q., Chapman, C.E., Burdette, E.G. and French, C.E.V. (2012), "Longitudinal joint details with tight bend diameter U-bars", ACI Struct. J., 109(6), 815-824.
  20. Ryu, H.K., Kim, Y.J. and Chang, S.P. (2007), "Crack control of a continuous composite two-girder bridge with prefabricated slabs under static and fatigue loads", Eng. Struct., 29, 851-864. https://doi.org/10.1016/j.engstruct.2006.06.021
  21. Ryu, H.K., Kim, Y.J. and Chang, S.P. (2007), "Experimental study on static and fatigue strength of loop joints", Eng. Struct., 29(2), 145-162. https://doi.org/10.1016/j.engstruct.2006.04.014.
  22. Shim, C.S., Chung, C.H., Kim, I.K. and Kim, Y.J. (2010), "Development and application of precast decks for composite bridges", Struct. Eng. Int., 20(2), 126-133. https://doi.org/10.2749/101686610791283623.
  23. Shim, C.S., Kim, J.H., Chung, C.H. and Chang, S.P. (2000), "The behaviour of shear connections in composite beam with full-depth precast slab", Proc. Inst. Civil Eng., Struct. Build., 140, 101-110. https://doi.org/10.1680/stbu.2000.140.1.101.
  24. Shim, C.S., Lee, C.D. and Ji, S.W. (2018), "Crack control of precast deck loop joint using high strength concrete", Adv. Concrete Constr., 6(5), 527-543. https://doi.org/10.12989/acc.2018.6.5.527.
  25. Shin, D.H., Park, S.J., Oh, H.C., Kim, I.G. and Kim, Y.J. (2015), "Evaluation on flexural performance of precast bridge decks with ribbed connection", J. Korea Inst. Struct. Mainten. Inspect., 19(3), 1-9. https://doi.org/10.11112/jksmi.2015.19.3.001.
  26. Yousif, A.A. (1995), "Field performance of full depth precast concrete panels in bridge deck reconstruction", University of Illinois at Chicago, Chicago, IL, USA.