Abstract
This paper studies the performance of infilled frame of Multi-Ribbed Composite Wall (MRCW) after fire, using a combined experimental and Finite-Element (FE) analysis method. To this end, 14 infilled frame specimens were tested under fire, where different fire conditions, including both single-side and double-side fire, were considered. After fire, they were tested under diagonal loads to evaluate their residual bearing capacities. Based on the test results, the residual capacities of the specimens subjected to 60 min single-side fire, 60 min double-side fire, and 120 min single-side fire were about 3/4, 1/2, and 2/3, respectively, of those at room temperature. For specimens subjected to 120 min double-side fire, the bearing capacity was completely lost. Corresponding to the two types of tests, two types of FE analyses were conducted, including temperature and mechanical loading analyses. A temperature-related reduction factor of the elastic modulus was adopted to account for the cracks in the Autoclaved Aerated Concrete (AAC) blocks after fire, due to the restraining effect of the ribbed beams and columns. Good correlations were obtained between FE and test results. The FE model was further used to conduct a parametric study to evaluate different factors on the infilled frames’ residual capacities after fire. It was found that, compared with concrete strength and the height of the ribbed beams and columns, the grade of AAC had the most significant effect on the infilled frames’ residual capacities. The residual capacities of the infilled frames with the same size decreased significantly with the increase of fire time. Under the same fire time, the increase rate of the bearing capacity was higher when the height of the ribbed beams and columns was in the range of 70–90 mm.
Similar content being viewed by others
Data Availability Statement
Some or all data that support the findings of this paper are available from the corresponding author upon request.
References
Yao QF, Chen P (2003) Study on energy-saving residential system of multi-ribbed wall slab with light-weight outer frame. Ind Constr 33:1–5. https://doi.org/10.3321/j.issn:1000-8993.2003.01.001(inChinese)
Yue YF (2004) Experimental investigate on mechanical property of new HPC multi-ribbed composite wall. Xi’an University of Architecture and Technology, PhD thesis. (in Chinese)
Yang JN (2006) Mechanical behavior experimental study of multi-ribbed composite wall. Xi’an University of Architecture and Technology, PhD thesis. (in Chinese)
Qu XN (2005) Experimental investigate on mechanical property of new HPC multi-ribbed composite wall. Xi’an University of Architecture and Technology, PhD thesis. (in Chinese)
Sun J (2013) Strength criterion for ecological light porous concrete under multiaxial stress. Constr Build Mater 44:663–670. https://doi.org/10.1016/j.conbuildmat.2013.03.062
Sun J, Xiong Y, Chang P, Mo YL (2015) Damage analysis of multi-ribbed wall structures under monotonic lateral loads. Eng Struct 89:37–48. https://doi.org/10.1016/j.engstruct.2015.02.002
Sun J, Wang K, Zhang J, Chen A (2017) Interfacial Properties between infilled autoclaved aerated concrete and ribbed frame for multi-ribbed composite wall structure. Aci Struct J 114(5):1285–1297. https://doi.org/10.14359/51700784
Sun J, Jia Y, Mo YL (2014) Evaluation of elastic properties and lateral stiffness of multi-ribbed walls based on equivalent elastic model. Eng Struct 72:92–101. https://doi.org/10.1016/j.engstruct.2014.04.014
Sun J, Zhao XL, Zhang J (2018) Residual bearing capacity of multi-ribbed composite wall cell after high temperature. J Tongji Univ (Natl Sci) 9:1182–88. https://doi.org/10.11908/j.issn.0253-374x.2018.09.004
Sun J, Yuan L, Wang P (2019) Residual bearing capacity of infilled frame of multi-ribbed composite wall after high temperature. Constr Build Mater 214:196–206. https://doi.org/10.1016/j.conbuildmat.2019.04.112
Guo ZH, Li W (1993) Deformation testing and constitutive relationship of concrete under different stress-temperature paths. Chin Civil Eng J 05:58–69 ((in Chinese))
Li W, Guo ZH (1993) Experimental investigation of strength and deformation of concrete at elevated temperature. J Build Struct 01:8–16 ((in Chinese))
Wan FX, Sun BY, Hai WS, Wen JC, Luo HR (2016) Experiment of concrete strength recovery after high temperature. Concrete 10:30–32. https://doi.org/10.3969/j.issn.1002-3550.2016.10.008
Papayianni J, Valiasis T (1991) Residual mechanical properties of heated concrete incorporating different pozzolanic materials. Mater Struct 24:115–121. https://doi.org/10.1007/BF02472472
Xu Y, Wong YL, Poon CS, Anson M (2001) Impact of high temperature on PFA concrete. Cem Concr Res 31:1065–1073. https://doi.org/10.1016/S0008-8846(01)00513-0
Wakili KG, Hugi E, Karvonen L, Schnewlin P, Winnefeld F (2015) Thermal behaviour of autoclaved aerated concrete exposed to fire. Cem Conc Comp 62:52–58. https://doi.org/10.1016/j.cemconcomp.2015.04.018
ISO 834 (2019) Fire resistance tests-elements of building construction. International Organization for Standardization (ISO), Geneva.
GB/T11969–2008. (2008) Test methods of autoclaved aerated concrete. Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing. (in Chinese)
GB50204–2002. (2002) Code for quality acceptance of concrete structure construction. Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing. (in Chinese)
GB 50081–2002 (2002) Standard for test method of mechanical properties on ordinary concrete. Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing. (in Chinese)
GB/T228.1–2010 (2010) Metallic materials-Tensile testing-Part 1: method of test at room temperature. Ministry of Housing and Urban-Rural Development of the People’s Republic of China, Beijing. (in Chinese)
EN1992–1–2: Eurocode 2 (2004) Design of concrete structures. Part 1–2: General rules—Structural fire design. British Standards Institution, Brussels
Lie T (2010) A procedure to calculate fire resistance of structural members. Fire Mater 8:40–48. https://doi.org/10.1002/fam.810080108
Guo ZH (2014) Principles of reinforced concrete, 1st edn. Butterworth-Heinemann, Waltham ((in Chinese))
Hua YJ (2000) Study on fire response and fire resistance of prestressed concrete structures. Tongji University, PhD thesis. (in Chinese)
Ni S, Birely AC (2018) Simulation procedure for the post-fire seismic analysis of reinforced concrete structural walls. Fire Saf J 95:101–112. https://doi.org/10.1016/j.firesaf.2017.10.011
Acknowledgements
This work is supported by the National Natural Science Foundation of China (Grant No. 52078037).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of Interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.
Rights and permissions
About this article
Cite this article
Sun, J., Wang, P., Chen, A. et al. Experimental and Finite-Element Study on Performance of Infilled Frame of Multi-ribbed Composite Walls After Fire. Int J Civ Eng 21, 283–298 (2023). https://doi.org/10.1007/s40999-022-00738-9
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s40999-022-00738-9