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Static Capacity Curves of Reinforced Concrete Structures Exposed to High Temperature Effects

Year 2022, , 110 - 123, 23.12.2022
https://doi.org/10.18185/erzifbed.1209620

Abstract

In this study, it is aimed to investigate the seismic performance of a reinforced concrete (RC) structural system exposed to high temperatures. For this purpose, a RC structure with 4 floors and 4 spacings was designed. First of all, column and beam elements were modeled by using ANSYS software and then, thermal analysis was performed assuming that they were exposed to the standard fire curve to obtain the temperature distributions in the cross-sections of the reinforced concrete elements. Secondly, the sectional analyses were performed for the reinforced concrete element sections and moment-curvature relations were obtained. Finally, the three dimensional (3D) structural system was modeled and static pushover analysis was carried out in accordance with the Turkish Building Earthquake Code (TBEC 2018). The results showed that as the exposure time to high temperature increase the inelastic displacement capacity and the base shear force values decrease. The results were also affected by the location of the fire event. Besides, plastic hinges occurred more quickly than the situation before fire event, resulting in a decrease in the load carrying capacity and stiffness of the system.

References

  • [1] Mohammadi, J., Alyasin, S., (1992). Analysis of post-earthquake fire hazard, Tenth World Conference on Earthquake Engineering, Netherland.
  • [2] Chen, S., Lee G. C. Shinozuka M., (2004). Hazard mitigation for earthquake and subsequent fire, In ANCER Annual Meeting: Networking of Young Earthquake Engineering Researchers and Professionals.
  • [3] Bhuiyan, M. H., Ahmed S., (2021). Post-Fire Residual Capacity of Reinforced Concrete Beam, Advances in Civil Engineering, Ed: M.P. Sigma Research and Consulting Sdn. Bhd. Malaysia, 117-126.
  • [4] Kodur, V., Baolin Y., Dwaikat M., (2013). A simplified approach for predicting temperature in reinforced concrete members exposed to standard fire, Fire Safety Journal, 56, 39-51.
  • [5] Xiao, J., Konig G., (2004). Study on concrete at high temperature in China an overview, Fire Safety Journal, 39, 89-103.
  • [6] Ryu, E., Shin, Y., & Kim, H., (2018). Effect of loading and beam sizes on the structural behaviors of reinforced concrete beams under and after fire. International Journal of Concrete Structures and Materials, 12(1), 1-10.
  • [7] Short, N. R., Purkiss J. A., Guise S. E., (2001). Assessment of fire damaged concrete using colour image analysis, Construction and Building Materials, 15, 9-15.
  • [8] Ivanka, N., Ivana K., Ivica G. (2011). The effect of high temperatures on the mechanical properties of concrete made with different types of aggregates. Fire Safety Journal, ,46, 425-430.
  • [9] Shah, A. H., Sharma U. K., (2017). Fire resistance and spalling performance of confined concrete columns, Construction and Building Materials, 156, 161-174.
  • [10] Nassif, A., (2005). Postfire full stress–strain response of fire-damaged concrete, Fire and Materials, 30, 323–332.
  • [11] Youssef, M. A., (2007). General stress–strain relationship for concrete at elevated temperatures, Engineering Structures, 29, 2618–2634.
  • [12] Luccioni, B. M., Figueroa M. I. Danesi R. F., (2003). Thermo-mechanic model for concrete exposed to elevated temperatures, Engineering Structures, 25, 729-742.
  • [13] Pearce, C. J., Nielsen C. V. Bicanic N., (2004). Gradient enhanced thermo-mechanical damage model for concrete at high temperatures including transient thermal creep, International Journal for Numerical and Analytical Methods in Geomechanics, 28, 715-735.
  • [14] Ryu, E., Shin Y. Kim, H., (2018). Effect of loading and beam sizes on the structural behaviors of reinforced concrete beams under and after fire, International Journal of Concrete Structures and Materials, 12 (1), 1-10.
  • [15] Wu, Y., Li, J., (2022). Temperature and stress of RC T-beam under different heating curves. Journal of Building Engineering, 46, 103620.
  • [16] Kurt, Z., Tonyalı Z., (2020). Performance Analysis of a Reinforced Concrete Frame System According to TBEC-2018, Sciennovation,1 (2), 6-22,
  • [17] Chaudhari, D.J., Dhoot G.O., (2016). Performance based seismic design of reinforced concrete building, Open Journal of Civil Engineering, 6, 188-194.
  • [18] SAP2000. (2019). Computers & Structures, California.
  • [19] Meacham, B. J., (2016). Post-earthquake fire performance of buildings: Summary of a large-scale experiment and conceptual framework for integrated performance-based seismic and fire design, Fire Technology, 52(4), 1133-1157.
  • [20] Hacıemiroğlu, M., (2014). Earthquake performance of R.C. buildings which exposed to fire (in Turkish), M.Sc Thesis, Istanbul Technical University, Graduate School of Science Engineering and Technology, Istanbul, Turkey.
  • [21] TEC-2007, (2007). Turkish Earthquake Code. Disaster and Emergency Management Presidency, Ministry of Interior, Republic of Turkey. Turkey.
  • [22] TBEC-2018, (2018). Turkish Building Earthquake Code. Rules for the Design of Buildings under Earthquake Effects. Disaster and Emergency Management Presidency, Ministry of Interior, Republic of Turkey. Turkey.
  • [23] ANSYS, (2022). ANSYS Academic Research Mechanical (Version 19).
  • [24] Khan, R. A., (2014). Performance based seismic design of reinforced concrete building, International Journal of Innovative Research in Science, Engineering and Technology, 3(6), 13495-13506.
  • [25] Kumbasaroglu, A., (2020). Effect of anchor bars on seismic behavior of infilled walled frames, KSCE Journal of Civil Engineering, 24(10), 2980-2992.
  • [26] TS-498. (2021). Design loads for buildings, Turkish Standards Institute. Turkey. 122
  • [27] TS-500. (2000). Requirements for Design and Construction of Reinforced Concrete Structures. Turkish Standards Institute. Turkey.
  • [28] TS-708. (2016). Steel for the reinforcement of concrete - Reinforcing steel, Turkish Standards Institute. Turkey.
  • [29] AFAD, Available: https://tdth.afad.gov.tr
  • [30] ISO-834. (1999). Fire-Resistance Tests—Elements of Building Constructions—Part 1: General Requirements, V. 25, International Organization Standard, Geneva, Switzerland, 25 pp.
  • [31] Kumar, A., Kumar V., (2003). Behaviour of RCC beams after exposure to elevated temperatures, Journal of the Institution of Engineers, 84, 165-170.
  • [32] Eurocode-2. (2004). Design of Concrete Structures. Part 1–2: General Rules – Structural Fire Design, European Committee for Standardization, Brussels, Belgium.
  • [33] Eurocode-1. (2004). Actions on structures - Part 1-2: General actions - Actions on structures exposed to fire, European Committee for Standardization,. Brussels, Belgium.
  • [34] Eurocode-4. (2005). Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design, European Committee for Standardization,. Brussels, Belgium.
  • [35] Mander, J. B., Priestley M. J., Park R., (1988). Theoretical stress-strain model for confined concrete, Journal of Structural Engineering, 114(8), 1804-1826.

Static Capacity Curves of Reinforced Concrete Structures Exposed to High Temperature Effects

Year 2022, , 110 - 123, 23.12.2022
https://doi.org/10.18185/erzifbed.1209620

Abstract

In this study, it is aimed to investigate the seismic performance of a reinforced concrete (RC) structural system exposed to high temperatures. For this purpose, a RC structure with 4 floors and 4 spacings was designed. First of all, column and beam elements were modeled by using ANSYS software and then, thermal analysis was performed assuming that they were exposed to the standard fire curve to obtain the temperature distributions in the cross-sections of the reinforced concrete elements. Secondly, the sectional analyses were performed for the reinforced concrete element sections and moment-curvature relations were obtained. Finally, the three dimensional (3D) structural system was modeled and static pushover analysis was carried out in accordance with the Turkish Building Earthquake Code (TBEC 2018). The results showed that as the exposure time to high temperature increase the inelastic displacement capacity and the base shear force values decrease. The results were also affected by the location of the fire event. Besides, plastic hinges occurred more quickly than the situation before fire event, resulting in a decrease in the load carrying capacity and stiffness of the system.

References

  • [1] Mohammadi, J., Alyasin, S., (1992). Analysis of post-earthquake fire hazard, Tenth World Conference on Earthquake Engineering, Netherland.
  • [2] Chen, S., Lee G. C. Shinozuka M., (2004). Hazard mitigation for earthquake and subsequent fire, In ANCER Annual Meeting: Networking of Young Earthquake Engineering Researchers and Professionals.
  • [3] Bhuiyan, M. H., Ahmed S., (2021). Post-Fire Residual Capacity of Reinforced Concrete Beam, Advances in Civil Engineering, Ed: M.P. Sigma Research and Consulting Sdn. Bhd. Malaysia, 117-126.
  • [4] Kodur, V., Baolin Y., Dwaikat M., (2013). A simplified approach for predicting temperature in reinforced concrete members exposed to standard fire, Fire Safety Journal, 56, 39-51.
  • [5] Xiao, J., Konig G., (2004). Study on concrete at high temperature in China an overview, Fire Safety Journal, 39, 89-103.
  • [6] Ryu, E., Shin, Y., & Kim, H., (2018). Effect of loading and beam sizes on the structural behaviors of reinforced concrete beams under and after fire. International Journal of Concrete Structures and Materials, 12(1), 1-10.
  • [7] Short, N. R., Purkiss J. A., Guise S. E., (2001). Assessment of fire damaged concrete using colour image analysis, Construction and Building Materials, 15, 9-15.
  • [8] Ivanka, N., Ivana K., Ivica G. (2011). The effect of high temperatures on the mechanical properties of concrete made with different types of aggregates. Fire Safety Journal, ,46, 425-430.
  • [9] Shah, A. H., Sharma U. K., (2017). Fire resistance and spalling performance of confined concrete columns, Construction and Building Materials, 156, 161-174.
  • [10] Nassif, A., (2005). Postfire full stress–strain response of fire-damaged concrete, Fire and Materials, 30, 323–332.
  • [11] Youssef, M. A., (2007). General stress–strain relationship for concrete at elevated temperatures, Engineering Structures, 29, 2618–2634.
  • [12] Luccioni, B. M., Figueroa M. I. Danesi R. F., (2003). Thermo-mechanic model for concrete exposed to elevated temperatures, Engineering Structures, 25, 729-742.
  • [13] Pearce, C. J., Nielsen C. V. Bicanic N., (2004). Gradient enhanced thermo-mechanical damage model for concrete at high temperatures including transient thermal creep, International Journal for Numerical and Analytical Methods in Geomechanics, 28, 715-735.
  • [14] Ryu, E., Shin Y. Kim, H., (2018). Effect of loading and beam sizes on the structural behaviors of reinforced concrete beams under and after fire, International Journal of Concrete Structures and Materials, 12 (1), 1-10.
  • [15] Wu, Y., Li, J., (2022). Temperature and stress of RC T-beam under different heating curves. Journal of Building Engineering, 46, 103620.
  • [16] Kurt, Z., Tonyalı Z., (2020). Performance Analysis of a Reinforced Concrete Frame System According to TBEC-2018, Sciennovation,1 (2), 6-22,
  • [17] Chaudhari, D.J., Dhoot G.O., (2016). Performance based seismic design of reinforced concrete building, Open Journal of Civil Engineering, 6, 188-194.
  • [18] SAP2000. (2019). Computers & Structures, California.
  • [19] Meacham, B. J., (2016). Post-earthquake fire performance of buildings: Summary of a large-scale experiment and conceptual framework for integrated performance-based seismic and fire design, Fire Technology, 52(4), 1133-1157.
  • [20] Hacıemiroğlu, M., (2014). Earthquake performance of R.C. buildings which exposed to fire (in Turkish), M.Sc Thesis, Istanbul Technical University, Graduate School of Science Engineering and Technology, Istanbul, Turkey.
  • [21] TEC-2007, (2007). Turkish Earthquake Code. Disaster and Emergency Management Presidency, Ministry of Interior, Republic of Turkey. Turkey.
  • [22] TBEC-2018, (2018). Turkish Building Earthquake Code. Rules for the Design of Buildings under Earthquake Effects. Disaster and Emergency Management Presidency, Ministry of Interior, Republic of Turkey. Turkey.
  • [23] ANSYS, (2022). ANSYS Academic Research Mechanical (Version 19).
  • [24] Khan, R. A., (2014). Performance based seismic design of reinforced concrete building, International Journal of Innovative Research in Science, Engineering and Technology, 3(6), 13495-13506.
  • [25] Kumbasaroglu, A., (2020). Effect of anchor bars on seismic behavior of infilled walled frames, KSCE Journal of Civil Engineering, 24(10), 2980-2992.
  • [26] TS-498. (2021). Design loads for buildings, Turkish Standards Institute. Turkey. 122
  • [27] TS-500. (2000). Requirements for Design and Construction of Reinforced Concrete Structures. Turkish Standards Institute. Turkey.
  • [28] TS-708. (2016). Steel for the reinforcement of concrete - Reinforcing steel, Turkish Standards Institute. Turkey.
  • [29] AFAD, Available: https://tdth.afad.gov.tr
  • [30] ISO-834. (1999). Fire-Resistance Tests—Elements of Building Constructions—Part 1: General Requirements, V. 25, International Organization Standard, Geneva, Switzerland, 25 pp.
  • [31] Kumar, A., Kumar V., (2003). Behaviour of RCC beams after exposure to elevated temperatures, Journal of the Institution of Engineers, 84, 165-170.
  • [32] Eurocode-2. (2004). Design of Concrete Structures. Part 1–2: General Rules – Structural Fire Design, European Committee for Standardization, Brussels, Belgium.
  • [33] Eurocode-1. (2004). Actions on structures - Part 1-2: General actions - Actions on structures exposed to fire, European Committee for Standardization,. Brussels, Belgium.
  • [34] Eurocode-4. (2005). Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design, European Committee for Standardization,. Brussels, Belgium.
  • [35] Mander, J. B., Priestley M. J., Park R., (1988). Theoretical stress-strain model for confined concrete, Journal of Structural Engineering, 114(8), 1804-1826.
There are 35 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Makaleler
Authors

Elif Nazlı Küçük 0000-0002-9369-1415

Oğuz Akın Düzgün 0000-0003-0842-9031

Publication Date December 23, 2022
Published in Issue Year 2022

Cite

APA Küçük, E. N., & Düzgün, O. A. (2022). Static Capacity Curves of Reinforced Concrete Structures Exposed to High Temperature Effects. Erzincan University Journal of Science and Technology, 15(Special Issue I), 110-123. https://doi.org/10.18185/erzifbed.1209620