Steel and Composite Structures

  • 제30권4호
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  • Pages.351-364
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  • 2019
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  • 1229-9367(pISSN)
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  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental study on cyclically-damaged steel-concrete composite joints subjected to fire

  • 투고 : 2017.12.30
  • 심사 : 2019.02.20
  • 발행 : 2019.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Earthquake and fire are both severe disasters for building structures. Since earthquake-induced damage will weaken the structure and reduce its fire endurance, it is important to investigate the behavior of structure subjected to post-earthquake fire. In this paper, steel-concrete composite beam-to-column joints were tested under fire with pre-damage caused by cyclic loads. Beforehand, three control specimens with no pre-damage were tested to capture the static, cyclic and fire-resistant performance of intact joints. Experimental data including strain, deflection and temperature recorded at several points are presented and analyzed to quantify the influence of cyclic damage on fire resistance. It is indicated that the fire endurance of damaged joints decreased with the increase of damage level, mainly due to faster heating-up rate after cyclic damage. However, cracks induced by cyclic loading in concrete are found to mitigate the concrete spalling at elevated temperatures. Moreover, the relationship between fire resistance and damage degree is revealed from experimental results, which can be applied in fire safety design and is worthwhile for further research.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China (NSFC)

참고문헌

  1. Alderighi, E., Bursi, O., Franssen, J.M., Lennon, T., Mallardo, R. and Pucinotti, R. (2008), "Fire Performance of undamaged and pre-damaged welded steel-concrete composite beam-to-column joints with concrete filled tubes", Proceedings of the 14th World Conference on Earthquake Engineering, Beijing, China.
  2. Amadio, C., Bedon, C., Fasan, M. and Pecce, M.R. (2017), "Refined numerical modelling for the structural assessment of steel-concrete composite beam-to-column joints under seismic loads", Eng. Struct., 138, 394-409. https://doi.org/10.1016/j.engstruct.2017.02.037
  3. Azhari, F., Heidarpour, A. and Zhao, X.L. (2018), "On the use of Bernstain-Bezier functions for modelling the post-fire stressstrain relationship of ultra-high strength steel (Grade 1200)", Eng. Struct., 175, 605-616. https://doi.org/10.1016/j.engstruct.2018.08.088
  4. Dubina, D., Ciutina, A.L. and Stratan, A. (2002), "Cyclic tests on bolted steel and composite double-sided beam-to-column joints", Steel Compos. Struct., Int. J., 2(2), 147-160. https://doi.org/10.12989/scs.2002.2.2.147
  5. FEMA-461 (2007), Interim testing protocols for determining the seismic performance characteristics of structural and nonstructural components; Applied Technology Council, CA, USA.
  6. GB/T 9978.1 (2008), Fire-resistance tests - Elements of building construction - Part I: General requirements; Standardization administration of the PRC, Beijing, China.
  7. Jiang, S.C., Guo, X.N., Xiong, Z., Cai, Y.F. and Zhu, S.J. (2017), Experimental studies on behavior of tubular T-joints reinforced with grouted sleeve, Steel Compos. Struct., Int. J., 23(5), 585-596. https://doi.org/10.12989/scs.2017.23.5.585
  8. Kato, B., Tanaka, A. and Yamanouchi, H. (1980), "A field work investigation of steel building damage due to the 1978 Miyagiken-oki earthquake", Proceedings of the Seventh World Conference on Earthquake Engineering, Istanbul, Turkey, July.
  9. Li, F., Zhao, Q.L., Chen, H.S. and Xu, L.X. (2017), "Experimental investigation of novel pre-tightened teeth connection technique for composite tube", Steel Compos. Struct., Int. J., 23(2), 161-172. https://doi.org/10.12989/scs.2017.23.2.161
  10. Liew, J.Y.R., Teo, T.H. and Shanmugam, N.E. (2004), "Composite joints subject to reversal of loading - Part 1: experimental study", J Constr. Steel Res., 60(2), 221-246. https://doi.org/10.1016/j.jcsr.2003.08.010
  11. Ma, H.W., Jiang, W.S. and Cho, C.D. (2011), "Experimental study on two types of new beam-to-column connections", Steel Compos. Struct., Int. J., 11(4), 291-305. https://doi.org/10.12989/scs.2011.11.4.291
  12. Mirmomeni, M., Heidarpour, A., Zhao, X.L. and Packer, J.A. (2017), "Effect of elevated temperature on the mechanical properties of high-strain-rate-induced partially damaged concrete and CFSTs", Int. J. Impact Eng.., 110, 346-358. https://doi.org/10.1016/j.ijimpeng.2017.02.006
  13. Niu, D.T. and Ren, L.J. (1996), "A modified seismic damage model with double variables for reinforced concrete structures", Earthq. Eng. Eng. Vib. (Chinese), 164, 44-54.
  14. Pecce, M. and Rossi, F. (2015), "The experimental behavior and simple modeling of joints in composite MRFs", Eng. Struct., 105, 249-263. https://doi.org/10.1016/j.engstruct.2015.09.042
  15. Pucinotti, R., Bursi, O.S. and Demonceau, J.F. (2011a), "Postearthquake fire and seismic performance of welded steel-concrete composite beam-to-column joints", J. Constr. Steel Res., 67(9), 1358-1375. https://doi.org/10.1016/j.jcsr.2011.03.006
  16. Pucinotti, R., Bursi, O.S. and Franssen, J.M. (2011b), "Seismicinduced fire resistance of composite welded beam-to-column joints with concrete-filled tubes", Fire Safety J., 46(6), 335-347. https://doi.org/10.1016/j.firesaf.2011.05.003
  17. Santiago, A., da Silva, S.L, Vaz, G., Vila, R.P. and Lopes, A.G. (2008), "Experimental investigation of the behavior of a steel sub-frame under a natural fire", Steel Compos. Struct., Int. J., 8(3), 243-264. https://doi.org/10.12989/scs.2008.8.3.243
  18. Sevim, B. (2017), "Structural response of rectangular composite columns under vertical and lateral loads", Steel Compos. Struct., Int. J., 25(3), 287-298.
  19. Sinaie, S., Heidarpour, A. and Zhao, X.L. (2014), "Stress-straintemperature relation for cyclically-damaged structural mild steel", Eng. Struct., 77, 84-94. https://doi.org/10.1016/j.engstruct.2014.07.037
  20. Song, Q.Y., Heidarpour, A. and Zhao, X.L. (2017), "Postearthquake fire performance of flange-welded/web-bolted steel I-beam to hollow column tubular connections", Thin-Wall. Struct., 116, 113-123. https://doi.org/10.1016/j.tws.2017.03.012
  21. Tremblay, R., Bruneau, M., Nakashima, N., Prion, H.G.L., Filiatrault, A. and DeVall, R. (1996), "Seismic design of steel buildings: Lessons from the 1995 Hyogo-ken Nanbu earthquake", Can. J. Civ. Eng., 23(3), 727-756. https://doi.org/10.1139/l96-885
  22. Valente, I.B. and Cruz, P.J.S. (2010), "Experimental analysis on steel and lightweight concrete composite beams", Steel Compos. Struct., Int. J., 10(2), 169-185. https://doi.org/10.12989/scs.2010.10.2.169
  23. Xiao, X.F., Zeng, L., Cui, Z.K., Jin, S.Q. and Chen, Y.G. (2017), "Experimental and analytical performance evaluation of steel beam to concrete-encased composite column with unsymmetrical steel section joints", Steel Compos. Struct., Int. J., 23(1), 17-29. https://doi.org/10.12989/scs.2017.23.1.017
  24. Zhu, X.H., Li, B.Y., Gan, D., Liu, J.P. and Chen, Y.F. (2017), "Connections between RC beam and square tubed-RC column under axial compression: Experiments", Steel Compos. Struct., Int. J., 23(4), 453-464. https://doi.org/10.12989/scs.2017.23.4.453

피인용 문헌

  1. The bearing capacity of monolithic composite beams with laminated slab throughout fire process vol.38, pp.1, 2019, https://doi.org/10.12989/scs.2021.38.1.087
  2. Fire Performance of Continuous Steel-Concrete Composite Bridge Girders vol.25, pp.3, 2019, https://doi.org/10.1007/s12205-021-0985-x
  3. Designing method for fire safety of steel box bridge girders vol.38, pp.6, 2021, https://doi.org/10.12989/scs.2021.38.6.657