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An experimental study of the mechanical performance of different types of girdling beams used to elevate bridges

  • Fangyuan Li (Department of Bridge Engineering, Tongji University) ;
  • Wenhao Li (Department of Bridge Engineering, Tongji University) ;
  • Peifeng Wu (Department of Bridge Engineering, Tongji University)
  • 투고 : 2022.02.23
  • 심사 : 2023.01.30
  • 발행 : 2023.02.25

초록

Girdling underpinning joints are key areas of concern for the pier-cutting bridge-lifting process. In this study, five specimens of an underpinning joint were prepared by varying the cross-sectional shape of the respective column, the process used to treat the beam-column interface (BCI), and the casting process. These specimens were subsequently analyzed through static failure tests. The BCI was found to be the weakest area of the joint, and the specimens containing a BCI underwent punching shear failure. The top of the girdling beam (GB) was subjected to a circumferential tensile force during slippage failure. Compared to the specimens with a smooth BCI, the specimens subjected to chiseling exhibited more pronounced circumferential compression at the BCI, which in turn considerably increased the shear capacity of the BCI and the ductility of the structure. The GB for the specimens containing a column with a circular cross-section exhibited better shear mechanical properties than the GB of other specimens. The BCI in specimens containing a column with a circular cross-section was more ductile during failure than that in specimens containing a column with a square cross-section.

키워드

과제정보

The research described in this paper was financially supported by the Fundamental Research Funds for the Central Universities (22120180318).

참고문헌

  1. ACI 318 (2011), Building Code Requirements for Structure Concrete and Commentary, American Concrete Institute, Farmington Hills, MI, USA.
  2. Du, J.M., Yuan, Y.S. and Xiang, W. (2007), "Prediction model of antipunching shear bearing capacity for frame columns underpin system", J. China Univ. Min. Technol., 36(1), 60-64. https://doi.org/10.1007/s11747-006-0011-3.
  3. GB50010-2002 (2016), Code for Design of Concrete Structures, Ministry of Housing and Urban-Rural Construction of the People's Republic of China, Beijing,
  4. GB/T 51256-2017 (2018), Technical Code for Bridge Jacking-up and Reposition, China Architecture& Building Press, Beijing, China.
  5. He, J. and Gao, X.Z. (2016), "Research of synchronous jacking up construction monitoring and control technologies of bridge", 2nd International Conference on Architectural, Civil and Hydraulics Engineering, Wuhan, China.
  6. Ji, B.H., Xu, S.L., Yuan, A.M., Zhou, C. and Zheng, H. (2011), "Research of design and application of girdling-column steel beam", Bridge Constr., 20(04), 66-70. https://doi.org/10.1111/j.1365-2761.2010.01212.x.
  7. Li, F.Y., Wu, P.F. and Yan, X.F. (2015), "Analysis and monitoring on jacking construction of continuous box girder bridge", Comput. Concrete, 16(1), 49-65. https://doi.org/10.12989/cac.2015.16.1.049.
  8. Li, Q., Cui, J.Y., Wang, J., Du, T., Chen, Z.L. and Zhang, K.D. (2021), "Research on failure mechanism of column underpinning structure based on Abaqus", The 13th Academic Conference on Building Construction and Disease Treatment, Beijing, China.
  9. Li, S.M. (2012), "Development & design of large-tonnage and great-height hydraulic continuous and synchronous jack-up system", International Conference on Mechatronics and Applied Mechanics, Hong Kong, China. https://doi.org/10.4028/www.scientific.net/AMM.157-158.577.
  10. Liu, G.H., Fan, X.X., Feng, Z.J., Wang, M.M., Lang, X.H., Wang, F.C., Zhao, R.X. and Tian, J.L. (2021), "Application of the synchronous jack-up technology in the widening project of bridge", Highw., 66(01), 146-152.
  11. Liu, J.H. (2007), "Study and application of underpinning of reinforced concrete column", Master Dissertation, Tongji University, Shanghai.
  12. Lu, W.Y., Hsiao, H.T., Chen, C.L., Huang, S.M. and Lin, M.C. (2015), "Tests of reinforced concrete deep beams", Comput. Concrete, 15(3), 357-372. https://doi.org/10.12989/cac.2015.15.3.357.
  13. Quintero-Febres, C.G., Parra-Montesinos, G. and Wight, J.K. (2007), "Strength of struts in deep concrete members designed using strut-and-tie method", ACI Struct. J., 104(3), 375-377. https://doi.org/10.1016/j.jhazmat.2007.02.010.
  14. Rong, X., Wang, T.C. and Kang, G.Y. (2003), "Shear resistance for reinforced concrete deep flexural member", J. Harbin Inst. Technol., 35(2), 180-183. https://doi.org/10.1007/s11769-003-0044-1.
  15. Yin, X.J. (2018), "Brief introduction of key points for the construction of bridge lifting", The 12th Academic Conference on Building Construction and Disease Treatment, Zhengzhou, China.
  16. Yue, K.F. and Yan, L. (2020), "Analysis and experimental study on shear bearing mechanism of underpinning beams based on truss-arch model", KSCE J. Civil Eng., 24(2), 603-611. https://doi.org/10.1007/s12205-020-1096-9.
  17. Yue, Q.X., Zhang, X., Jia, L.D. and Wang, H. (2012), "Research on shearing capacity of underpinning beams in frame structure moving based on strut-and-tie model", J. Build. Struct., 33(10), 110-115. https://doi.org/10.14006/j.jzjgxb.2012.10.011.
  18. Yue, Q.X., Zhang, X., Liu, J.S. and Fan, Z.L. (2016), "Experimental study on mechanical behaviors of column-beam interface of frame underpinning joints", Eng. Mech., 33(2), 72-79. https://doi.org/10.6052/j.issn.1000-4750.2015.09.0748.
  19. Zhang, X., Jia, L.D., Xia, F.M., Wang, H., Tan, T.L., Si, D.L. and Li, Y.P. (2011), "Experimental study on mechanical behavior of frame column underpinning joints", J. Build. Struct., 32(11), 89-96. https://doi.org/10.14006/j.jzjgxb.2011.11.002.
  20. Zhang, Y. (2013), "Experimental study on the structural performance of girdling beam for bridge jacking-up", Master Dissertation, Tongji University, Shanghai, China.
  21. Zhao, X.W., Xiao, R.C. and Sun, B. (2020), "Approximate calculation of the static analysis of a lifted stay cable in superlong span cable-stayed bridges", Struc. Eng. Mech., 74(5), 635-655. https://doi.org/10.12989/sem.2020.74.5.635.
  22. Zhong, J.T., Wang, L., Li, Y.F. and Zhou, M. (2018), "Shear-carrying capacity of prestressed concrete deep beams based on the strut-and-tie model", Chin. J. Highw. Transp., 31(5), 98. https://doi.org/10.19721/j.cnki.1001-7372.2018.05.011.