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Static performance of a new GFRP-metal string truss bridge subjected to unsymmetrical loads

  • Zhang, Dongdong (College of Field Engineering, Army Engineering University of PLA) ;
  • Yuan, Jiaxin (College of Field Engineering, Army Engineering University of PLA) ;
  • Zhao, Qilin (College of Mechanical and Power Engineering, Nanjing Tech University) ;
  • Li, Feng (College of Field Engineering, Army Engineering University of PLA) ;
  • Gao, Yifeng (College of Field Engineering, Army Engineering University of PLA) ;
  • Zhu, Ruijie (College of Field Engineering, Army Engineering University of PLA) ;
  • Zhao, Zhiqin (College of Field Engineering, Army Engineering University of PLA)
  • 투고 : 2019.08.18
  • 심사 : 2019.12.30
  • 발행 : 2020.06.10

초록

A unique lightweight string truss deployable bridge assembled by thin-walled fiber reinforced polymer (FRP) and metal profiles was designed for emergency applications. As a new structure, investigations into the static structural performance under the serviceability limit state are desired for examining the structural integrity of the developed bridge when subjected to unsymmetrical loadings characterized by combined torsion and bending. In this study, a full-scale experimental inspection was conducted on a fabricated bridge, and the combined flexural-torsional behavior was examined in terms of displacement and strains. The experimental structure showed favorable strength and rigidity performances to function as deployable bridge under unsymmetrical loading conditions and should be designed in accordance with the stiffness criterion, the same as that under symmetrical loads. In addition, a finite element model (FEM) with a simple modeling process, which considered the multi segments of the FRP members and realistic nodal stiffness of the complex unique hybrid nodal joints, was constructed and compared against experiments, demonstrating good agreement. A FEM-based numerical analysis was thereafter performed to explore the effect of the change in elastic modulus of different FRP elements on the static deformation of the bridge. The results confirmed that the change in elastic modulus of different types of FRP element members caused remarkable differences on the bending and torsional stiffness of the hybrid bridge. The global stiffness of such a unique bridge can be significantly enhanced by redesigning the critical lower string pull bars using designable FRP profiles with high elastic modulus.

키워드

과제정보

This research was supported by the Natural Science Foundations of Jiangsu Province (BK20170752), National Natural Science Foundation of China (51708552), Hong Kong Scholar Project (XJ2019042), Postdoctoral Science Foundation Grant of China (2017M623401), and Young Elite Scientist Sponsorship. All the extended support is gratefully acknowledged.

참고문헌

  1. Bai, Y., Burkett, W.R. and Nash, P.T. (2006), "Rapid bridge replacement under emergency situation: Case study", J. Bridge Eng., 11, 266-273. https://doi.org/10.1061/(ASCE)1084-0702(2006)11:3(266).
  2. Bai, Y. and Yang, X. (2013), "Novel joint for assembly of all-composite space truss structures: conceptual design and preliminary study", J. Compos. Constr., 17, 130-138. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000304.
  3. Ban, H., Tan, E.L. and Uy, B. (2015), "Strength of multi-span composite beams subjected to combined flexure and torsion", J. Constr. Steel Res., 113, 1-12. https://doi.org/10.1016/j.jcsr.2015.05.023.
  4. Brittani, R.R. and Ashley, P.T. (2013), "Portable and rapidly deployable bridges: historical perspective and recent technology developments", J. Bridge Eng., 18, 1074-1085. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000454.
  5. Correia, J.R., Bai, Y. and Keller, T. (2015), "A review of the fire behaviour of pultruded GFRP structural profiles for civil engineering applications", Compos. Struct., 127, 267-287. https://doi.org/10.1016/j.compstruct.2015.03.006.
  6. Design code (1988), GJB 435-88, Design Load for Military Bridges, National Military Committee for Standardization, Beijing, China.
  7. Design code (1992), GJB 1162-91, General Code for Military Bridge Design, National Military Committee for Standardization, Beijing, China.
  8. Feo, L., Marra, G. and Mosallam, A.S. (2012), "Stress analysis of multi-bolted joints for FRP pultruded composite structures", Compos. Struct., 94, 3769-3780. https://doi.org/10.1016/j.compstruct.2012.06.017.
  9. Foss, C.F. and Gander, T.J. (2001), Jane's military vehicles and logistics, Jane's Information Group, Surrey, United Kingdom.
  10. Gand, A.K., Chan, T.M. and Mottram, J.T. (2013), "Civil and structural engineering applications, recent trends, research and developments on pultruded fiber reinforced polymer closed sections: a review", Front. Struct. Civ. Eng., 7(3), 227-244. https://doi.org/10.1007/s11709-013-0216-8.
  11. Gunaydin, M., Adanur, S., Altunisik, A.C. and Sevim, B. (2015), "Static and dynamic responses of Halgavor Footbridge using steel and FRP materials", Steel Compos. Struct., 18(1), 51-69. https://doi.org/10.12989/scs.2015. 18.1.051.
  12. Heffernan, P.J., Wight, R.G. and Erki, M.A. (2011), "Research on the use of FRP for critical load-bearing infrastructure in conflict zones", J. Compos. Constr., 15, 136-145. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000077
  13. Hung, H.H., Sung, Y.C., Chang, K.C., Yin, S.H. and Yeh, F.Y. (2016), "Experimental testing and numerical simulation of a temporary rescue bridge using GFRP composite materials", Constr. Build. Mater., 114, 181-193. https://doi.org/ 10.1016/j.conbuildmat.2016.03.199.
  14. Iwao, S. and Itaru, N. (2010), "Load-bearing properties of an FRP bridge after nine years of exposure", Proceedings of the 5th International Conference on FRP Composites in Civil Engineering, Beijing, China, September. https://doi.org/ 10.1007/978-3-642-17487-2_102
  15. Keller T, Bai Y, Vallee T. (2007), "Long-term performance of a glass fiber-reinforced polymer truss bridge", J. Compos. Constr, 11(1), 99-108. https://doi.org/10.1061/(ASCE)1090-0268(2007)11:1(99).
  16. Kim, H.Y., Park, K.T., Jeong J, Lee, Y.H., Hwang, Y.K. and Kim, D. (2010), "A pultruded GFRP deck panel for temporary structures", Compos. Struct., 91, 20-30. https://doi.org/10.1016/j.compstruct.2009.04.028.
  17. Kim, Y.J. (2019), "State of the practice of FRP composites in highway bridges", Eng. Struct., 179, 1-8. https://doi.org/ 10.1016/j.engstruct.2018.10.067.
  18. Kostopoulos, V. (2005), "Design and construction of a vehicular bridge made of glass/polyester pultruded box beams", Plastics, Rubbers Compos., 34(4), 201-07. https://doi.org/10.1179/174328905X55641.
  19. Li, F., Liu, J.S., Zhang, D.D. and Liu, J.B. (2018), "Tensile experiments on the tooth connections with filament winding between GFRP tube and aluminum alloy tube", Acta Materiae Compositae Sinica, 35(10), 678-688. https://doi.org/10.13801/j.cnki.fhclxb.20171127.002.
  20. Luo, F.J., Bai, Y., Yang, X. and Lu, Y. (2016), "Bolted sleeve joints for connecting pultruded FRP tubular components", J. Compos. Constr., 20(1), 04015024. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000580.
  21. Mao, H.F., Zhang, D.D., Chen, L., Zhao, Q.L., Su, X.P. and Yuan, J.X. (2020), "Flexural behaviour of a new lightweight glass fibre-reinforced polymer metal string bridge with a box-truss composite girder", Adv. Struct. Eng., 23(1), 104-117. https://doi.org/10.1177/1369433219866088.
  22. Qiu, C., Feng, P., Yang, Y., Zhu, L. and Bai, Y. (2017), "Joint capacity of bonded sleeve connections for tubular fibre reinforced polymer members", Compos. Struct., 163, 267-279. https://doi.org/10.1016/j.compstruct.2016.12.006.
  23. Robinson, M.J. and Kosmatka, J.B. (2008), "Development of a short-span fiber-reinforced composite bridge for emergency response and military applications", J. Bridge. Eng., 13, 388-397. https://doi.org/10.1061/(ASCE)1084- 0702(2008)13:4(388).
  24. Sedlacek, G. and Trumpf, H. (2004), "Development of a lightweight emergency bridge", Struct. Eng. Int., 14(4), 282-287. https://doi.org/ 10.2749/101686604777963702.
  25. Tan, E.L. and Uy, B. (2009a), "Experimental study on straight composite beams subjected to combined flexure and torsion", J. Constr. Steel Res., 65(4), 784-793. https://doi.org/10.1016/j.jcsr.2008.10.006.
  26. Tan, E.L. and Uy, B. (2009b), "Experimental study on curved composite beams subjected to combined flexure and torsion", J. Constr. Steel Res., 65(8-9), 1855-1863. https://doi.org/10.1016/j.jcsr.2009.04.015.
  27. Tan, E.L. and Uy, B. (2011), "Nonlinear analysis of composite beams subjected to combined flexure and torsion", J. Constr. Steel Res., 67(5), 790-799. https://doi.org/10.1016/j.jcsr.2010.12.015.
  28. Tao, Z., Wang, Z.B., Han, L.H. and Uy, B. (2011), "Fire performance of concrete-filled steel tubular columns strengthened by CFRP", Steel Compos. Struct., 14(4), 307-324. https://doi.org/ 10.12989/scs.2011.11.4.307.
  29. Teixeira, A.M.A.J., Pfeil, M.S. and Battista, R.C. (2014), "Structural evaluation of a GFRP truss girder for a deployable bridge", Compos. Struct., 110(4), 29-38. https://doi.org/10.1016/j.compstruct.2013.11.014.
  30. Votsis, R.A., Stratford, T.J., Chryssanthopoulos, M.K. and Tantele, E.A. (2017), "Dynamic assessment of a FRP suspension footbridge through field testing and finite element modelling", Steel Compos. Struct., 23(2), 205-215. https://doi.org/10.12989/scs.2017.23.2.205.
  31. Wu, C., Feng, P. and Bai, Y. (2015), "Comparative study on static and fatigue performances of pultruded GFRP joints using ordinary and blind bolts", J. Compos. Constr., 19(4): 04014065. https://doi.org/10.1061/(ASCE)CC.1943- 5614.0000527.
  32. Wight, R.G., Erki, M., Shyu, C.T., Tanovic, R. and Heffernan, P.J. (2006), "Development of FRP short-span deployable bridge-Experimental results", J. Bridge Eng., 11(4), 489-498. https://doi.org/10.1061/(ASCE)1084-0702(2006)11:4 (489).
  33. Xin, H., Liu, Y., He, J., Fan, H. and Zhang, Y. (2015), "Fatigue behavior of hybrid GFRP-concrete bridge decks under sagging moment", Steel and Compos. Struct., 18(4), 925-946. https://doi.org/10.12989/scs.2015.18.4.925.
  34. Yang, X., Bai, Y. and Ding F. (2015), "Structural performance of a large-scale space frame assembled using pultruded GFRP composites", Compos. Struct., 133(1), 986-996. https://doi.org/10.1016/j.compstruct.2015.07.120.
  35. Yang, X., Bai, Y., Luo, F.J., Zhao, X.L. and Ding, F. (2016), "Dynamic and fatigue performances of a large-scale space frame assembled using pultruded GFRP composites", Compos. Struct., 138, 227-236. https://doi.org/10.1016/ j.compstruct.2015.11.064.
  36. Yang, X., Bai, Y., Luo, F.J., Zhao, X.L. and He, X. (2017), "Fiber-reinforced polymer composite members with adhesive bonded sleeve joints for space frame structures", J. Mater. Civil Eng., 29(2), 04016208. https://doi.org/ 10.1061/(ASCE)MT.1943-5533.0001737.
  37. Yang, Y., Xue, Y.C., Yu, Y.L, Liu, R.Y. and Ke, S.F. (2017), "Study of the design and mechanical performance of a GFRP-concrete composite deck", Steel and Compos. Struct., 24(6), 679-688. https://doi.org/10.12989/scs.2017. 24.6.679.
  38. Zhang, D.D. (2016), "Load-carrying properties and calculation methods of a novel hybrid FRP-metal space truss bridge", Ph.D. Dissertation, PLA Univ. of Sci. & Tech, Nanjing.
  39. Zhang, D.D., Lv, Y.R., Zhao, Q.L. and Li, F. (2019), "Development of lightweight emergency bridge using GFRP- metal composite plate-truss girder", Eng. Struct., 196, 109291. https://doi.org/10.1016/j.engstruct.2019.109291.
  40. Zhang, D.D., Zhao, Q.L., Huang, Y.X., Li, F., Chen, H.S. and Miao, D.S. (2014), "Flexural properties of a lightweight hybrid FRP-aluminum modular space truss bridge system", Compos. Struct., 108, 600-615. https://doi.org/ 10.1016/j.compstruct.2013.09.058.
  41. Zhang, D.D., Zhao, Q.L., Li, F. and Huang, Y.X. (2017), "Experimental and numerical study of the torsional property of a hybrid FRP-aluminum modular triangular deck-truss structure", Eng. Struct., 133, 172-185. https://doi.org/ 10.1016/j.engstruct.2016.12.007.
  42. Zhang, D.D., Zhao, Q.L., Li, F., Tao, J. and Gao, Y.F. (2018), "Torsional behavior of a hybrid FRP-aluminum space truss bridge: experimental and numerical study", Eng. Struct., 157, 132-143. https://doi.org/10.1016/j.engstruct. 2017.12.013.
  43. Zhao, X.L. and Zhang, L. (2007), "State-of-the-art review on FRP strengthened steel structures", Eng. Struct., 29, 1808-1823. https://doi.org/10.1016/j.engstruct.2006.10.006.
  44. Zhou, Y.Z., Fan, H.L., Jiang, K.B., Gou, M.K., Li, N., Zhu, P.C. and Tu, Y.Q. (2014), "Experimental flexural behaviors of CFRP strengthened aluminum beams", Compos. Struct., 116(9), 761-771. https://doi.org/10.1016/j.compstruct. 2014.06.012.
  45. Zhu, R.J., Li, F., Zhang, D.D. and Tao, J. (2019), "Effect of joint stiffness on the deformation of a novel FRP-aluminum space truss system", J. Struct. Eng., 145(11), 04019123. https://doi.org/10.1061/(ASCE) ST. 1943- 541X. 0002426.

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