Investigating the behavior of innovative hybrid connection of reinforced concrete beam to cruciform steel column using two web plates

Document Type : Original Article

Authors

1 M.Sc., Department of Civil Engineering, Islamic Azad University Zanjan Branch,, Zanjan, Iran

2 Assistant Professor, Department of Civil Engineering, Islamic Azad University Zanjan Branch,, Zanjan, Iran

Abstract

Load transfer from beam to column in connections by a reliable path is one of the most important and critical issues that has been proposed and studied in various details by many researchers. The failure of the connection between the column and the beam is one of the main reasons that causes the failure and accelerates the collapse process of the structures. In the current research, it has been tried to increase the capacity and strength of the connection by proposing an innovative hybrid connection of reinforced concrete beam to steel column in two cases and provide the possibility of using these details in heavier sections. The innovative connection is proposed in two ways: 1- placing two steel shear web plates inside the concrete beam and connecting it with the end plate to the steel column 2- placing two steel shear web plates with upper and lower flange plates together inside the concrete beam and its connection with the end plate to the steel column. In this regard, after modeling and validating the prototype, the capacity and behavior of the proposed connections have been checked in Abaqus finite element software. The results of the analysis show that an increase in energy absorption with the addition of continues plate, and this effect is more visible with the increase in the dimensions of the beam and column in higher drifts. Also, the addition of flange plates to the steel part of the hybrid concrete beam is very effective in the overall ductility of the connection, and this has caused a 24% increase in the ductility coefficient and 13% in the maximum strength compared to the other proposed connections. At the same time, increasing the length of the steel part of the beam has increased the strength of the connection in all cases.

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[1] Pachideh, G. Kafi, M. and Gholhaki, M. (2020). Evaluation of cyclic performance of a novel bracing system equipped with a circular energy dissipater. Structures, 28, 467–481. https://doi.org/10.1016/j.istruc.2020.09.007
[2] Pachideh, G. Gholhaki, M. and Saedi Daryan, A. (2019). Analyzing the damage index of steel plate shear walls using pushover analysis. Structures, 20, 437–451. https://doi.org/10.1016/j.istruc.2019.05.005
[3] Pachideh, G. Gholhaki, M. and Kafi, M. and (2020). Experimental and numerical evaluation of an innovative diamond-scheme bracing system equipped with a yielding damper. Steel and Composite Structures, 36(2), 197-211. https://doi.org/10.12989/scs.2020.36.2.197
[4] Chou, C.-C. and Uang, C.-M. (2002). Cyclic performance of a type of steel beam to steel-encased reinforced concrete column moment connection. Journal of Constructional Steel Research, 58(5–8), 637–663. https://doi.org/10.1016/s0143-974x(01)00089-x
[5] Cheng, C.-T. and Chen, C.-C. (2005). Seismic behavior of steel beam and reinforced concrete column connections. Journal of Constructional Steel Research, 61(5), 587–606. https://doi.org/10.1016/j.jcsr.2004.09.003
[6] Ju, Y. K. Kim, J.-Y. and Kim, S.-D. (2007). Experimental Evaluation of New Concrete Encased Steel Composite Beam to Steel Column Joint. Journal of Structural Engineering, 133(4), 519–529. https://doi.org/10.1061/(asce)0733-9445(2007)133:4(519)
[7] Eder, M. A. Vollum, R. L. and Elghazouli, A. Y. (2011). Inelastic behaviour of tubular column-to-flat slab connections. Journal of Constructional Steel Research, 67(7), 1164–1173. https://doi.org/10.1016/j.jcsr.2011.02.009
[8] Bompa, D. V. and Elghazouli, A. Y. (2015). Ultimate shear behaviour of hybrid reinforced concrete beam-to-steel column assemblages. Engineering Structures, 101, 318–336. https://doi.org/10.1016/j.engstruct.2015.07.033
[9] El-Masry, A.H. Dabaon, M.A. El-Shafiey, T.F. and El-Hakim A. K. (2015). Investigation on an innovative way to connect
RC beam and steel column. International Scholarly and Scientific Research & Innovation, 9(4), 362-368.
[10] Zhang, J. Hu, X. Gong, S. Wu, J. Zhu, W. and Ren, C. (2021). Experimental investigation of steel-concrete composite beam to reinforced-concrete column joints with single plate shear connection. Engineering Structures, 245, 112906. https://doi.org/10.1016/j.engstruct.2021.112906
[11] Song, Y. Wang, J. Uy, B. and Li, D. (2021). Behaviour and design of stainless steel-concrete composite beam-to-column joints. Journal of Constructional Steel Research, 184, 106800. https://doi.org/10.1016/j.jcsr.2021.106800
[12] Wang, H. Huo, J. Liu, Y. Elchalakani, M. and Zhu, Z. (2021). Dynamic performance of composite beam-column connections subjected to impact loadings. Journal of Constructional Steel Research, 178, 106498. https://doi.org/10.1016/j.jcsr.2020.106498
[13] Lacki, P. Derlatka, A. Kasza, P. and Gao, S. (2021). Numerical study of steel–concrete composite beam with composite dowels connectors. Computers and Structures, 255, 106618. https://doi.org/10.1016/j.compstruc.2021.106618
[14] Yang, I.-S. Lee, D. Ju, H. Lee, S.-J. and Oh, J.-Y. (2022). Steel-concrete composite beam-column connections utilizing prefabricated permanent steel form. Journal of Building Engineering, 46, 103836. https://doi.org/10.1016/j.jobe.2021.103836
[15] Zhang, J. Pei, Z. and Rong, X. (2022). Experimental seismic study of an innovative precast steel–concrete composite beam–column joint. Soil Dynamics and Earthquake Engineering, 161, 107420. https://doi.org/10.1016/j.soildyn.2022.107420
[16] H.ElMasry A, Dabaon M, Elshafiey T, Khalil A-H. (2016). Numerical modeling of innovative connection between RC beam and steel column. International Journal of Engineering and Advanced Technology, 5(4),78–82.
[17] Bahaari, M. R. and Sherbourne, A. N. (2000). Behavior of eight-bolt large capacity endplate connections. Computers and Structures, 77(3), 315–325. https://doi.org/10.1016/s0045-7949(99)00218-7
[18] Wang, Y. Wang, Z. Pan, J. and Wang, P. (2020). Seismic Behavior of a Novel Blind Bolted Flush End-Plate Connection to Strengthened Concrete-Filled Steel Tube Columns. Applied Sciences, 10(7), 2517. https://doi.org/10.3390/app10072517
[19] Lin, T. Wang, Z. Hu, F. and Wang, P. (2022). Finite-Element Analysis of High-Strength Steel Extended End-Plate Connections under Cyclic Loading. Materials, 15(8), 2912. https://doi.org/10.3390/ma15082912
[20] Cao, X. Wu, L. and Li, Z. (2020). Behaviour of steel-reinforced concrete columns under combined torsion based on ABAQUS FEA. Engineering Structures, 209, 109980. https://doi.org/10.1016/j.engstruct.2019.109980
[21] Qingfu, L. Wei, G. and Yihang, K. (2020). Parameter calculation and verification of concrete plastic damage model of ABAQUS. In: IOP Conference Series: Materials Science and Engineering, 794(1), 012036. https://doi.org/10.1088/1757-899x/794/1/012036
[22] Tran, V.-L. (2022). Investigating the behavior of steel flush endplate connections at elevated temperatures using FEM and ANN. International Journal of Steel Structures, 22(5), 1433–1451. https://doi.org/10.1007/s13296-022-00650-x