Seismic Behavior of Semi-Dry Precast Concrete Connections Using Tapered Thread Couplers

Document Type: Regular Paper


1 University of Science and Culture

2 University of Science & Culture

3 Department of Civil Engineering, Sharif University, Tehran, Iran


The worldwide usage of precast concrete frames leads to an increase in the need for the investigation of efficient precast connections, particularly in the seismic regions. The current paper provides a numerical and experimental study on a dry precast connection. Experiments were conducted with the aim to validate the finite element method in the laboratory of the University of Science and Culture. In order to verify the validity of the result, the outcomes of the non-linear analysis of cross-shaped models were compared to the experimental results in terms of failure mode, ductility, lateral load-bearing capacity, and energy dissipation. The finite element non-linear analyses of the models represented an acceptable compatibility with experimental results. A parametric study has been carried out to survey the effect of the couplers and grout compressive strength on semi-dry connection behavior. Eventually, the response modification factors were determined for the case studies to demonstrate the seismic behavior in design forces. Statistical analysis of the numerical results demonstrates a 6 % increase in response modification factors of the specimens with the closest distance of couples to the column face in relation to those with the couplers farthest away from the column face. Eventually, it can be concluded that the specimens with a shorter coupler distance from the external face of the column and with a higher grout compressive strength lead to the appropriate results.


Main Subjects

[1] Park, R., & Thompson, K. J. (1977). Cyclic load tests on prestressed and partially prestressed beam-column joints. PRECAST/PRESTRESSED CONCRETE INSTITUTE. JOURNAL, 22(5).
[2] Bull.D.K. and Park.R. (1986) “Seismic Resistance of Frames Incorporating Precast Prestressed Concrete Beam Shells”. PCI Journal. V.B1.NO.4. PP.54-93
[3] Pillai.S.U. and Kirk.D.W. (1981) “Ductile Beam-Column Connection in Precast Concrete”. ACI Structural Journal. V.78 No.6, PP.480-487.
[4] Bhatt.P and Kirk.D.W. (1985) “Tests on an improved Beam-Column connction for precast concrete”. ACI Structural Journal V.82 NO.6. PP.834-843.
[5] Sekin.M. and Fu.H.C. (1990) “Beam-Column Connection in Precast Reinforced Concrete Construction”. ACI Structural Journal V.87.NO3.PP252-261.
[6] Stanon.J.F., Anderson.R.G., Dolan.c.w. and Mc Cleary.D. E (1986) “Moment Resistant Connection and Simple Connections”. Research project NO.1/4. Precast/Prestressed Concrete Institute. Chicago.
[7] Tankat.A.T., Ersoy.U and Ozacebe.G.(1998)” seismic performance of Precast Concrete Connection”, The 11th European Conference on Earthquake Engineering. Balkema, Austria. PP.30-37.
[8] Khaloo.A.R. and Parastesh.H.(2003) “Cyclic Loading of Ductile Precast Concrete Beam-Column Connection”. ACI Structural Journal. V.100. NO.3. PP.291-296
[9] Khaloo.A.R. and Parastesh.H.(2003) “Cyclic Loading Response of simple Moment-Resisting Precast Concrete Beam-Column Connection”. ACI Structural Journal. V.100. NO.4. PP.440-445
[10] Parastesh.H., Khaloo.A. R & Ramezani.R. “Experimental Study of Interior Connection in Prefabricated R/C Frames”. Submitted to Engineering Structures.
[11] Parstesh H., Mobedi E., Ghasemi H. Amjadian, K. (2019), “Experimental Study for Strength Capacity of Cold-Formed Steel Joists Connections with Consideration of Various Bolts Arrangements”, 7(2), 61-70.
[12] Sudhakar.A. Kulkarni, Bini Li, Woon Kwong Yip (2007) “Finite element analysis of precast hybrid-steel concrete connection under cyclic loading” Journal of Constructional Steel Research.
[13] Guan, D., Guo, Z., Jiang, C., Yang, S., & Yang, H. (2018). Experimental evaluation of precast concrete beam-column connections with high-strength steel rebars. KSCE Journal of Civil Engineering, 1-13.
[14] Bahrami, S., Madhkhan, M., Shirmohammadi, F., & Nazemi, N. (2017). Behavior of two new moment resisting precast beam to column connections subjected to lateral loading. Engineering Structures, 132, 808-821.
[15] Fathi, M., Parvizi, M., Karimi, J., & Afreidoun, M. H. (2018). Experimental and numerical study of a proposed moment-resisting connection for precast concrete frames. Scientia Iranica, 25(4), 1977-1986.
[16] Xiao, J., Ding, T., & Zhang, Q. (2017). Structural behavior of a new moment-resisting DfD concrete connection. Engineering Structures, 132, 1-13.
[17] Yan, Q., Chen, T., & Xie, Z. (2018). Seismic experimental study on a precast concrete beam-column connection with grout sleeves. Engineering Structures, 155, 330-344.
[18] Alias, A., Zubir, M. A., Shahid, K. A., & RAhman, A. B. A. (2013). Structural performance of grouted sleeve connectors with and without transverse reinforcement for precast concrete structure. Procedia Engineering, 53, 116-123.
[19] Clementi, F., Scalbi, A., & Lenci, S. (2016). Seismic performance of precast reinforced concrete buildings with dowel pin connections. Journal of Building Engineering, 7, 224-238.
[20] Nzabonimpa, J. D., Hong, W. K., & Kim, J. (2017). Nonlinear finite element model for the novel mechanical beam-column joints of precast concrete-based frames. Computers & Structures, 189, 31-48.
[21] Girgin, S. C., Misir, İ. S., & Kahraman, S. (2017). Seismic performance factors for precast buildings with hybrid beam-column connections. Procedia engineering, 199, 3540-3545.
[22] Bompa, D. V., and A. Y. Elghazouli. (2019), "Inelastic cyclic behavior of RC members incorporating threaded reinforcement couplers." Engineering Structures 180: 468-483.
[23] Woon, Kai-Siong, and Farzad Hejazi. (2019), "Vertical Cyclic Performance of Precast Frame with Hook-end U-shaped High-damping Rubber Joint." KSCE Journal of Civil Engineering: 1-12.
[24] Hibbitt, Karlson&Sorensen Inc. (2005) ABAQUS/standard user’s manual, Version 6.5. Providence (RI).
[25] Mander J.B., Priestley M.J.N., Park R (1988). “Theoretical stress-strain, Vol. 114, No. 8, pp. 1804-1826
[26] Sargin.M. (1971) “stress-strain Relationships for concrete and the analysis of structural concrete sections.”, university of waterloo.
[27] Ab-Kadir, Mariyana A., et al. (2014), "Experimental and Numerical Study on Softening and Pinching Effects of Reinforced Concrete Frame." IOSR Journal of Engineering 4.5: 1.