Experimental and Numerical Study of Grout Effectiveness and Force-Transfer Mechanism in Socket Connections
Publication: Journal of Bridge Engineering
Volume 29, Issue 4
Abstract
This study aims to investigate the effectiveness of grout and the mechanism of force transfer in socket connections. In doing so, it proposes a new transfer mode called integral transfer mode (ITM), as opposed to the conventional separate transfer mode (STM). The proposed ITM suggests that, in a reinforced concrete socket connection, if there is a strong bond between the column, grouting material, and receiving member, the socket connection will function as an integral structure, deforming together as a whole rather than as separate components. Consequently, the grouting material does not need to provide a significant lateral bearing force, and the interface shear stresses become the key focus in designing a socket connection. To explore this concept, quasi-static tests and numerical analyses using solid elements were conducted on three half-scale specimens with varying grout strengths. The results demonstrated that the performance of specimens with normal-strength grout was comparable to that of the specimen with high-strength grout. And the proposed ITM was better than STM at predicting failure modes, force–displacement relationships, the stress states of reinforcements, and grout stresses.
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Data Availability Statement
The testing data and references that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research is funded by the National Natural Science Foundation of China (Grant Numbers 51878492, 51978511, and 51938013).
References
AASHTO. 2012. LRFD bridge design specifications. American association of state highway and transportation officials. Washington, DC: AASHTO.
Azizinamini, A. 2020. “Accelerated bridge construction.” J. Bridge Eng. 25 (12): 02020002. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001643.
Cheng, Z., and S. Sritharan. 2019. “Side shear strength of preformed socket connections suitable for vertical precast members.” J. Bridge Eng. 24 (5): 04019025. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001391.
Cheng, Z., and S. Sritharan. 2020. “Outdoor test of a prefabricated column–pile cap–pile system under combined vertical and lateral loads.” J. Bridge Eng. 25 (8): 04020052. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001588.
Cogurcu, M. T., and M. Uzun. 2022. “Experimental investigation of a new precast column–foundation connection under cyclic loading.” J. Build Eng. 50: 104245. https://doi.org/10.1016/j.jobe.2022.104245.
Comite Euro-International Du Beton. 2013. CEB-FIP Model code 2010. London: Thomas Telford House.
Culmo, M. P., L. Marsh, J. Stanton, and Merts, D. 2018. NCHRP web-only document 242: Recommended AASHTO guide specifications for ABC design and construction. Washington, DC: National Academies Press.
Haraldsson, O. S., T. M. Janes, M. O. Eberhard, and J. F. Stanton. 2013. “Seismic resistance of socket connection between footing and precast column.” J. Bridge Eng. 18 (9): 910–919. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000413.
Kappes, L., M. Berry, F. Murray, J. Stephens, and K. Barnes. 2016. “Seismic performance of concrete-filled steel tube to concrete pile–cap connections.” J. Bridge Eng. 21 (7): 04016042. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000901.
Khudhair, H., H. Muteb, and H. Al-Baghdadi. 2020. “Behavior of precast concrete columns bases embedded in socket foundations with different bonding interfaces.” In Proc., Int. Scientific Conf. of the Univ. of Babylon ISCUB, Babylon, Iraq: University of Babylon.
Li, T. T., H. Y. Qu, Z. Q. Wang, H. Y. Wei, and S. C. Jiang. 2018. “Seismic performance of precast concrete bridge columns with quasi-static cyclic shear test for high seismic zones.” Eng. Struct. 166: 441–453. https://doi.org/10.1016/j.engstruct.2018.03.086.
Marsh, M. L., M. Wernli, B. E. Garrett, J. F. Stanton, M. O. Eberhard, and M. D. Weinert 2011. NCHRP report 698: Application of accelerated bridge construction connections in moderate-to-high seismic regions. Washington, DC: National Academies Press.
Mashal, M., and A. Palermo. 2014. “Quasi-static cyclic testing of half-scale fully precast bridge substructure system in high seismicity.” In Proc., New Zealand Society for Earthquake Engineering Conf., Auckland, New Zealand: New Zealand Society for Earthquake Engineering (NZSEE).
Mehrsoroush, A. 2014. “Experimental and analytical seismic studies of bridge piers with innovative pipe pin column-footing connections and precast cap beams.” Doctoral Dissertation, Dept. of Civil and Environmental Engineering, Univ. of Nevada.
MHURDPRC (Ministry of Housing and Urban-Rural Development of the People’s Republic of China). 2010. Code for design of concrete structures GB 50010-2010. Beijing: MHURDPRC.
Mohebbi, A., M. S. Saiidi, and A. M. Itani. 2018a. “Shake table studies and analysis of a precast two-column bent with advanced materials and pocket connections.” J. Bridge Eng. 23 (7): 04018046. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001247.
Mohebbi, A., M. S. Saiidi, and A. M. Itani. 2018b. “Shake table studies and analysis of a PT-UHPC bridge column with pocket connection.” J. Bridge Eng. 144 (4): 04018021.
Motaref, S. 2011. “Seismic response of precast bridge columns with energy dissipating joints.” Doctoral Dissertation, Dept. of Civil and Environmental Engineering, Univ. of Nevada.
MTPRC (Ministry of Transport of the People’s Republic of China). 2012. Code for design of highway reinforced concrete and prestressed concrete bridges and culverts JTG-D62. Beijing: MTPRC.
Osanai, Y., F. Watanabe, and S. Okamoto. 1996. “Stress transfer mechanism of socket base connections with precast concrete columns.” ACI Struct. J. 93 (3): 266–276.
Pertold, J., R. Y. Xiao, and F. Wald. 2000a. “Embedded steel column bases I. Experiments and numerical simulation.” J. Constr. Steel Res. 56 (3): 253–270. https://doi.org/10.1016/S0143-974X(99)00105-4.
Pertold, J., R. Y. Xiao, and F. Wald. 2000b. “Embedded steel column bases II. Design model proposal.” J. Constr. Steel Res. 56 (3): 271–286. https://doi.org/10.1016/S0143-974X(99)00106-6.
Randl, N., and J. Kunz. 2014. “Post-installed reinforcement connections at ultimate and serviceability limit states.” Struct. Concr. 15 (4): 563–574. https://doi.org/10.1002/suco.201300094.
Rizkalla, S. H., R. L. Serrette, J. S. Heuvel, and E. K. Attiogbe. 1989. “Multiple shear key connections for precast shear wall panels.” PCI J. 34 (2): 104–120. https://doi.org/10.15554/pcij.03011989.104.120.
Sadeghian, P., and A. Fam. 2010. “Bond-slip analytical formulation toward optimal embedment of concrete-filled circular FRP tubes into concrete footings.” J. Eng. Mech. 136 (4): 524–533. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000091.
Saiidi, M. S., M. Mehraein, G. Shrestha, E. Jordan, A. Itani, M. Tazarv, D. Sanders, T. P. Murphy, M. L. Reno, and M. N. Pohll. 2020. NCHRP research report 935: Proposed AASHTO seismic specifications for ABC column connections. Washington, DC: National Academies Press.
Shoushtari, E., M. S. Saiidi, A. Itani, and M. A. Moustafa. 2019. “Design, construction, and shake table testing of a steel girder bridge system with ABC connections.” J. Bridge Eng. 24 (9): 04019088. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001464.
Tran, H. V. 2012. “Drilled shaft socket connections for precast columns in seismic regions.” Master’s Dissertation, Dept. of Civil and Environmental Engineering, Univ. of Washington.
Wang, Z. Q., T. T. Li, H. Y. Qu, and Y. B. Li. 2019. “Seismic performance of precast bridge columns with socket and pocket connections based on quasi-static cyclic tests: Experimental and numerical study.” J. Bridge Eng. 24 (11): 04019105. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001463.
Wang, Z. Q., H. Y. Qu, T. T. Li, H. Y. Wei, H. Wang, H. L. Duan, and H. X. Jiang. 2018. “Quasi-static cyclic tests of precast bridge columns with different connection details for high seismic zones.” Eng. Struct. 158: 13–27. https://doi.org/10.1016/j.engstruct.2017.12.035.
White, S., and A. Palermo. 2016. “Quasi-static testing of posttensioned nonemulative column-footing connections for bridge piers.” J. Bridge Eng. 21 (6): 04016025. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000872.
Xu, Y., Z. Zeng, Z. G. Wang, and J. P. Ge. 2021. “Experimental studies of embedment length of precast bridge pier with socket connection to pile cap.” Eng. Struct. 233: 111906. https://doi.org/10.1016/j.engstruct.2021.111906.
Zeng, Z., Y. Xu, H. Yan, and X. Qi. 2023. “Design verification of a new socket partially embedded connection between precast rectangular columns and stepped pile caps.” J. Bridge Eng. 28 (2): 04022150. https://doi.org/10.1061/JBENF2.BEENG-5815.
Zhang, G. D., Q. Han, K. Xu, X. L. Du, and W. L. He. 2021. “Experimental investigation of seismic behavior of UHPC-filled socket precast bridge column–foundation connection with shear keys.” Eng. Struct. 228: 111527. https://doi.org/10.1016/j.engstruct.2020.111527.
Zhang, Q., and M. S. Alam. 2020. “State-of-the-art review of seismic-resistant precast bridge columns.” J. Bridge Eng. 25 (10): 03120001. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001620.
Zhou, X. Y., X. Nie, S. Q. Xu, R. Ding, C. B. Zhang, and X. B. Yin. 2022. “Experimental studies on seismic performance of socket connections with shear keys and inner and outer filled reinforced concrete.” Eng. Struct. 273: 115021. https://doi.org/10.1016/j.engstruct.2022.115021.
Information & Authors
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Published In
Journal of Bridge Engineering
Volume 29 • Issue 4 • April 2024
Copyright
© 2024 American Society of Civil Engineers.
History
Received: Apr 16, 2023
Accepted: Sep 25, 2023
Published online: Feb 2, 2024
Published in print: Apr 1, 2024
Discussion open until: Jul 2, 2024
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