Title:
Seismic-Fire-Combined Loadings Applied to Carbon Fiber-Reinforced Polymer-Confined Reinforced Concrete Columns
Author(s):
Ju-Hyung Kim, Yail J. Kim, and Jun Wang
Publication:
Structural Journal
Volume:
120
Issue:
5
Appears on pages(s):
169-184
Keywords:
carbon fiber-reinforced polymer (CFRP); column; earthquake duration; fire endurance; modeling; seismic performance
DOI:
10.14359/51738843
Date:
9/1/2023
Abstract:
This paper presents analytical investigations into the behavior
of a reinforced concrete column with and without carbon fiberreinforced polymer (CFRP) confinement when subjected to
earthquake and fire loadings. A data set of 100 ground motions
covering short and long durations is collected and integrated
with 0 to 3 hours of fire exposure. Two strengthening categories are implemented: 1) one to six CFRP layers; and 2) six layers of CFRP with a 40 mm (1.6 in.) thick insulation. A computational platform incorporating autonomous discrete entities is used for the simulation of heat transfer, while static pushover and nonlinear dynamic analyses predict the seismic response of the unconfined and confined columns. Thermal gradients are generated across the column section to identify the physical and mechanical properties of constituents at elevated temperatures, which are linked with the static and dynamic models. The CFRP-confined column with insulation outperforms its unconfined counterpart from a behavioral
standpoint, specifically for axial capacities, flexural failure,
energy dissipation, and deformability. The implications of the
seismic-fire-combined loadings are remarkable in terms of
degrading the load-resisting ability of the columns compared with those of the uncoupled actions. The duration of the ground motions dominates the development of a relationship between the spectral acceleration and drift ratio of the columns. Design recommendations are rendered to address the limitations of current practice.
Related References:
1. Li, Q., and Ellingwood, B. R., “Performance Evaluation and Damage Assessment of Steel Frame Buildings under Main Shock–Aftershock Earthquake Sequences,” Earthquake Engineering & Structural Dynamics, V. 36, No. 3, Mar. 2007, pp. 405-427. doi: 10.1002/eqe.667
2. Bessason, B.; Rupakhety, R.; and Bjarnason, J. Ö., “Comparison and Modelling of Building Losses in South Iceland Caused by Different Size Earthquakes,” Journal of Building Engineering, V. 46, Apr. 2022, Article No. 103806. doi: 10.1016/j.jobe.2021.103806
3. ASCE/SEI 41-17, “Seismic Evaluation and Retrofit of Existing Buildings,” American Society of Civil Engineers, Reston, VA, 2017.
4. Lavorato, D., and Nuti, C., “Pseudo-Dynamic Tests on Reinforced Concrete Bridges Repaired and Retrofitted after Seismic Damage,” Engineering Structures, V. 94, July 2015, pp. 96-112. doi: 10.1016/j.engstruct.2015.01.012
5. Xu, J. J.; Demartino, C.; Shan, B.; Heo, Y. A.; and Xiao, Y., “Experimental Investigation on Performance of Cantilever CFRP-Wrapped Circular RC Columns under Lateral Low-Velocity Impact,” Composite Structures, V. 242, June 2020, Article No. 112143. doi: 10.1016/j.compstruct.2020.112143
6. Lignos, D. G.; Moreno, D. M.; and Billington, S. L., “Seismic Retrofit of Steel Moment-Resisting Frames with High-Performance Fiber-Reinforced Concrete Infill Panels: Large-Scale Hybrid Simulation Experiments,” Journal of Structural Engineering, ASCE, V. 140, No. 3, Mar. 2014, p. 04013072. doi: 10.1061/(ASCE)ST.1943-541X.0000877
7. FEMA 547, “Techniques for the Seismic Rehabilitation of Existing Buildings,” Federal Emergency Management Agency, Washington, DC, 2006, 571 pp.
8. Gkournelos, P. D.; Triantafillou, T. C.; and Bournas, D. A., “Seismic Upgrading of Existing Reinforced Concrete Buildings: A State-of-the-Art Review,” Engineering Structures, V. 240, Aug. 2021, Article No. 112273. doi: 10.1016/j.engstruct.2021.112273
9. Naser, M. Z.; Hawileh, R. A.; and Abdalla, J. A., “Fiber-Reinforced Polymer Composites in Strengthening Reinforced Concrete Structures: A Critical Review,” Engineering Structures, V. 198, Nov. 2019, Article No. 109542. doi: 10.1016/j.engstruct.2019.109542
10. ACI Committee 440, “Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures (ACI 440.2R-17),” American Concrete Institute, Farmington Hills, MI, 2017, 112 pp.
11. Zou, X. K.; Teng, J. G.; De Lorenzis, L.; and Xia, S. H., “Optimal Performance-Based Design of FRP Jackets for Seismic Retrofit of Reinforced Concrete Frames,” Composites Part B: Engineering, V. 38, No. 5-6, July-Sept. 2007, pp. 584-597. doi: 10.1016/j.compositesb.2006.07.016
12. Ager, P.; Eriksson, K.; Hansen, C. W.; and Lønstrup, L., “How the 1906 San Francisco Earthquake Shaped Economic Activity in the American West,” Explorations in Economic History, V. 77, July 2020, Article No. 101342. doi: 10.1016/j.eeh.2020.101342
13. Wang, Y.; Kodur, V. K. R.; Fu, C.; Liu, C.; Zhou, H.; and Naser, M. Z., “Seismic Performance of Reinforced Concrete Frame Joints after Exposure to Fire,” ACI Structural Journal, V. 118, No. 3, May 2021, pp. 3-14.
14. Chian, S. C., and Kolathayar, S., “Recent Advances in Earthquake Engineering—An Introduction,” Recent Advances in Earthquake Engineering: Select Proceedings of VCDRR 2021, S. Kolathayar and S. C. Chian, eds., Lecture Notes in Civil Engineering, V. 175, Springer Nature, Singapore, 2022, pp. 1-8.
15. Mohan, A. T.; Van Coile, R.; Hopkin, D.; Jomaas, G.; and Caspeele, R., “Risk Tolerability Limits for Fire Engineering Design: Methodology and Reference Case Study,” Fire Technology, V. 57, No. 5, Sept. 2021, pp. 2235-2267. doi: 10.1007/s10694-021-01118-w
16. Uchiyama, T.; Kawaguchi, K.; and Wakabayashi, T., “Effect of Simultaneous Consideration for Seismically Induced Events on Core Damage Frequency,” Journal of Power and Energy Systems, V. 5, No. 3, 2011, pp. 360-375. doi: 10.1299/jpes.5.360
17. Wang, J. H.; Zhang, X.; Kunnath, S.; He, J.; and Xiao, Y., “Post-Earthquake Fire Resistance and Residual Seismic Capacity of Reinforced Concrete Columns,” ACI Structural Journal, V. 118, No. 4, July 2021, pp. 123-136.
18. ACI Committee 318, “Building Code Requirements for Structural Concrete (ACI 318-19) and Commentary (ACI 318R-19) (Reapproved 2022),” American Concrete Institute, Farmington Hills, MI, 2019, 624 pp.
19. ASTM E119-20, “Standard Test Methods for Fire Tests of Building Construction and Materials,” ASTM International, West Conshohocken, PA, 2020, 36 pp.
20. Haselton, C. B.; Goulet, C. A.; Mitrani-Reiser, J.; Beck, J. L.; Deierlein, G. G.; Porter, K. A.; Stewart, J. P.; and Taciroglu, E., “An Assessment to Benchmark the Seismic Performance of a Code-Conforming Reinforced Concrete Moment-Frame Building,” PEER Report 2007/12, Pacific Earthquake Engineering Research Center, Berkeley, CA, 2008, 382 pp.
21. Moehle, J., Seismic Design of Reinforced Concrete Buildings, McGraw-Hill Professional, New York, 2014, 760 pp.
22. Williams, B.; Bisby, L.; Kodur, V.; Green, M.; and Chowdhury, E., “Fire Insulation Schemes for FRP-Strengthened Concrete Slabs,” Composites Part A: Applied Science and Manufacturing, V. 37, No. 8, Aug. 2006, pp. 1151-1160. doi: 10.1016/j.compositesa.2005.05.028
23. Lahoti, M.; Tan, K. H.; and Yang, E.-H., “A Critical Review of Geopolymer Properties for Structural Fire-Resistance Applications,” Construction and Building Materials, V. 221, Oct. 2019, pp. 514-526. doi: 10.1016/j.conbuildmat.2019.06.076
24. SDI, “Basic Fire Door, Fire Door Frame, Transom/Sidelight Frame, and Window Frame Requirements (SDI 118-19),” Steel Door Institute, Cleveland, OH, 2019, 12 pp.
25. Somerville, P. G.; Smith, N. F.; Graves, R. W.; and Abrahamson, N. A., “Modification of Empirical Strong Ground Motion Attenuation Relations to Include the Amplitude and Duration Effects of Rupture Directivity,” Seismological Research Letters, V. 68, No. 1, Jan.-Feb. 1997, pp. 199-222. doi: 10.1785/gssrl.68.1.199
26. Foschaar, J. C.; Baker, J. W.; and Deierlein, G. G., “Preliminary Assessment of Ground Motion Duration Effects on Structural Collapse,” 15th World Conference on Earthquake Engineering (15WCEE), Lisbon, Portugal, 2012, 10 pp.
27. Chandramohan, R.; Baker, J. W.; and Deierlein, G. G., “Quantifying the Influence of Ground Motion Duration on Structural Collapse Capacity Using Spectrally Equivalent Records,” Earthquake Spectra, V. 32, No. 2, May 2016, pp. 927-950. doi: 10.1193/122813eqs298mr2
28. O’Meagher, A. J., and Bennetts, I. D., “Modelling of Concrete Walls in Fire,” Fire Safety Journal, V. 17, No. 4, 1991, pp. 315-335. doi: 10.1016/0379-7112(91)90026-U
29. Hajiloo, H.; Green, M. F.; Noël, M.; Bénichou, N.; and Sultan, M., “Fire Tests on Full-Scale FRP Reinforced Concrete Slabs,” Composite Structures, V. 179, Nov. 2017, pp. 705-719. doi: 10.1016/j.compstruct.2017.07.060
30. Griffis, C. A.; Masumura, R. A.; and Chang, C. I., “Thermal Response of Graphite Epoxy Composite Subjected to Rapid Heating,” Journal of Composite Materials, V. 15, No. 5, Sept. 1981, pp. 427-442. doi: 10.1177/002199838101500503
31. EN 1992-1-2:2004, “Eurocode 2: Design of Concrete Structures - Part 1-2: General Rules - Structural Fire Design,” European Committee for Standardization, Brussels, Belgium, 2004, 99 pp.
32. Chowdhury, E. U.; Bisby, L. A.; Green, M. F.; and Kodur, V. K. R., “Investigation of Insulated FRP-Wrapped Reinforced Concrete Columns in Fire,” Fire Safety Journal, V. 42, No. 6-7, Sept.-Oct. 2007, pp. 452-460. doi: 10.1016/j.firesaf.2006.10.007
33. Chapiro, A., “Radiation Effects in Polymers,” Encyclopedia of Materials: Science and Technology, second edition, K. H. Jürgen Buschow, M. C. Flemings, E. J. Kramer, P. Veyssière, R. W. Cahn, B. Ilschner, and S. Mahajan, eds., Elsevier, Amsterdam, the Netherlands, 2004, pp. 1-8.
34. Zhou, G.; Mikinka, E.; Golding, J.; Bao, X.; Sun, W.; and Ashby, A., “Investigation of Thermal Degradation and Decomposition of Both Pristine and Damaged Carbon/Epoxy Samples with Thermal History,” Composites Part B: Engineering, V. 201, Nov. 2020, Article No. 108382. doi: 10.1016/j.compositesb.2020.108382
35. Zhou, F.; Zhang, J.; Song, S.; Yang, D.; and Wang, C., “Effect of Temperature on Material Properties of Carbon Fiber Reinforced Polymer (CFRP) Tendons: Experiments and Model Assessment,” Materials (Basel), V. 12, No. 7, Apr. 2019, Article No. 1025. doi: 10.3390/ma12071025
36. Lie, T. T., Structural Fire Protection, Manuals and Reports on Engineering Practice No. 78, American Society of Civil Engineers, Reston, VA, 1992.
37. Bai, Y., and Keller, T., “Time Dependence of Material Properties of FRP Composites in Fire,” Journal of Composite Materials, V. 43, No. 21, Oct. 2009, pp. 2469-2485. doi: 10.1177/0021998309344641
38. Luo, Y.; Klima, K. M.; Brouwers, H. J. H.; and Yu, Q., “Effects of Ladle Slag on Class F Fly Ash Geopolymer: Reaction Mechanism and High Temperature Behavior,” Cement and Concrete Composites, V. 129, May 2022, Article No. 104468. doi: 10.1016/j.cemconcomp.2022.104468
39. Xing, Z.; Beaucour, A.-L.; Hebert, R.; Noumowe, A.; and Ledesert, B., “Aggregate’s Influence on Thermophysical Concrete Properties at Elevated Temperature,” Construction and Building Materials, V. 95, Oct. 2015, pp. 18-28. doi: 10.1016/j.conbuildmat.2015.07.060
40. Rand, W., and Stummer, C., “Agent‐Based Modeling of New Product Market Diffusion: An Overview of Strengths and Criticisms,” Annals of Operations Research, V. 305, No. 1-2, Oct. 2021, pp. 425-447. doi: 10.1007/s10479-021-03944-1
41. Wilensky, U., and Rand, W., An Introduction to Agent-Based Modeling: Modeling Natural, Social, and Engineered Complex Systems with NetLogo, MIT Press, Cambridge, MA, 2015, 504 pp.
42. Weerasinghe, P.; Nguyen, K.; Mendis, P.; and Guerrieri, M., “Large-Scale Experiment on the Behaviour of Concrete Flat Slabs Subjected to Standard Fire,” Journal of Building Engineering, V. 30, July 2020, Article No. 101255. doi: 10.1016/j.jobe.2020.101255
43. Bisby, L. A., “Fire Behaviour of Fibre-Reinforced Polymer (FRP) Reinforced or Confined Concrete,” PhD thesis, Queen’s University, Kingston, ON, Canada, 2003, 397 pp.
44. Zhou, F.; Pang, R.; Zhang, P.; and Cui, J., “Experimental Investigation of the Mechanical Properties of Carbon Fiber-Reinforced Polymer (CFRP) Tendons during and after Exposure to Elevated Temperatures,” Materials and Structures, V. 55, No. 2, Mar. 2022, Article No. 82. doi: 10.1617/s11527-022-01923-x
45. Nawy, E. G., Reinforced Concrete: A Fundamental Approach, sixth edition, Pearson, Hoboken, NJ, 2009.
46. Paulay, T., and Priestley, M. J. N., Seismic Design of Reinforced Concrete and Masonry Buildings, John Wiley & Sons, Inc., New York, 1992, 768 pp.
47. Youssf, O.; ElGawady, M. A.; and Mills, J. E., “Displacement and Plastic Hinge Length of FRP-Confined Circular Reinforced Concrete Columns,” Engineering Structures, V. 101, Oct. 2015, pp. 465-476. doi: 10.1016/j.engstruct.2015.07.026
48. Chopra, A. K., Dynamics of Structures: Theory and Applications to Earthquake Engineering, sixth edition, Pearson, London, UK, 2016.
49. ACI Committee 374, “Guide for Testing Reinforced Concrete Structural Elements under Slowly Applied Simulated Seismic Loads (ACI 374.2R-13),” American Concrete Institute, Farmington Hills, MI, 2013, 18 pp.
50. Ibarra, L. F.; Medina, R. A.; and Krawinkler, H., “Hysteretic Models That Incorporate Strength and Stiffness Deterioration,” Earthquake Engineering & Structural Dynamics, V. 34, No. 12, Oct. 2005, pp. 1489-1511. doi: 10.1002/eqe.495
51. Haselton, C. B.; Liel, A. B.; Lange, S. T.; and Deierlein, G. G., “Beam-Column Element Model Calibrated for Predicting Flexural Response Leading to Global Collapse of RC Frame Buildings,” PEER Report 2007/03, Pacific Earthquake Engineering Research Center, Berkeley, CA, 2008, 152 pp.
52. Paultre, P.; Boucher-Trudeau, M.; Eid, R.; and Roy, N., “Behavior of Circular Reinforced-Concrete Columns Confined with Carbon Fiber–Reinforced Polymers under Cyclic Flexure and Constant Axial Load,” Journal of Composites for Construction, ASCE, V. 20, No. 3, June 2016, p. 04015065. doi: 10.1061/(ASCE)CC.1943-5614.0000624
53. Werkle, H., Finite Elements in Structural Analysis: Theoretical Concepts and Modeling Procedures in Statics and Dynamics of Structures, Springer Nature, Cham, Switzerland, 2021.
54. Leondes, C. T., Structural Dynamic Systems Computational Techniques and Optimization: Finite Element Analysis (FEA) Techniques, CRC Press, Boca Raton, FL, 2021.
55. Vamvatsikos, D., and Cornell, C. A., “Incremental Dynamic Analysis,” Earthquake Engineering & Structural Dynamics, V. 31, No. 3, Mar. 2002, pp. 491-514. doi: 10.1002/eqe.141
56. ASCE/SEI 7-22, “Minimum Design Loads and Associated Criteria for Buildings and Other Structures,” American Society of Civil Engineers, Reston, VA, 2022.