- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Evaluating the Efficacy of Shear Connectors in H Steel Sections Embedded in Concrete | ||
| Al-Rafidain Engineering Journal (AREJ) | ||
| Volume 30, Issue 1, March 2025, Pages 125-134 PDF (776.68 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.33899/arej.2024.149371.1357 | ||
| Authors | ||
| Alaulddin Abdulrahman AL-Jafal* 1; Suhaib Yahya AL-Darzi2 | ||
| 1Department of Civil Engineering, College of Engineering, University of Mosul, Mosul, Iraq | ||
| 2Civil Engineering Department, College of Engineering, University of Mosul, Mosul, Iraq | ||
| Abstract | ||
| This study is focusing on H steel sections embedded in concrete by evaluating various shear connectors, including headed studs, bolts, steel angles, perfobonds, and self-connected variants. This comprehensive examination of nine specimens aims to understand their load-bearing capacity, failure mechanisms, and overall performance in structural composite connections. The paper thoroughly compares and analyzes the load-slip curves, average initial shear stiffness, ultimate load, ductility, and fracture energy for these connectors. The research highlights self-connected connectors with rebars passing through flanges demonstrating substantial increases in ultimate load (41 %) in comparison to natural bond only, and maintaining ductility post-peak. Moreover, through this study it has been found that when shear studs and shear angles are designed for equivalent loads exhibit remarkably similar performance. Additionally, adding extra connectors to the web of H-sections enhances load capacity and stiffness but reduces ductility. The double shear in 10 mm diameter 8.8 bolted (with two nuts inside and outside flange) connectors raise the ultimate load but shift the curve of load slip from ductile to brittle in comparison with the same diameter studs. | ||
| Keywords | ||
| Shear connectors; load-slip; Perfobond; studs; self-connected | ||
|
Supplementary Files
|
||
| References | ||
|
[1] X. Wang, Y. iu, Y. i, Y. u, and X. i, “Bond behavior and shear transfer of steel section-concrete interface with studs: Testing and modeling,” Constr. Build. Mater., vol. 264, Dec. 2020, doi: 10.1016/j.conbuildmat.2020.120251. [2] B. W. Charles Roeder, R. Chmielowski, A. Member, C. B. Brown, and H. Member, “SHEAR CONNECTOR REQUIREMENTS FOR EMBEDDED STEE SECTIONS,” Eng. Struct., vol.125, pp.142-151,1999. [3] R. T. Pardeshi and Y. D. Patil, “Review of Various Shear Connectors in Composite Structures,” Adv. Steel Constr., vol. 17, no. 4, pp. 394–402, 2021, doi: 10.18057/IJASC.2021.17.4.8. [4] B. S. En, “Eurocode 2: Design of concrete structures Part 1-1: General rules and rules for buildings,” Eur. Comm. Stand., 2004. [5] J. Wei, Q. Yang, Y. Yu, Q. Wang, L. Zhou, and F. Chen, “Study of Bond–Slip Behavior and Constitutive Model of a New M-Section Steel-Skeleton Concrete,” Materials (Basel)., vol. 15, no. 19, pp. 1–26, 2022, doi: 10.3390/ma15196776. [6] H. Meng, W. Wang, and R. Xu, “Analytical model for the Load-Slip behavior of headed stud shear connectors,” Eng. Struct., vol. 252, p. 113631, 2022. [7] P. Duratna, J. Bujnak, A. Bouchair, and F. Bahleda, “Behaviour and strength of headed shear stud connectors,” Commun. - Sci. Lett. Univ. Žilina, vol. 15, no. 3, pp. 107–111, 2013, doi: 10.26552/com.c.2013.3.107-111. [8] D. S. Jung, S. H. Park, T. H. Kim, J. W. Han, and C. Y. Kim, “Demountable Bolted Shear Connector for Easy Deconstruction and Reconstruction of Concrete Slabs in Steel–Concrete Bridges,” Appl. Sci., vol. 12, no. 3, 2022, doi: 10.3390/app12031508. [9] F. Yang, Y. iu, Z. Jiang, and H. Xin, “Shear performance of a novel demountable steel-concrete bolted connector under static push-out tests,” Eng. Struct., vol. 160, pp. 133–146, Apr. 2018, doi: 10.1016/j.engstruct.2018.01.005. [10] F. Yang, Y. Liu, H. Xin, and M. Veljkovic, “Fracture simulation of a demountable steel-concrete bolted connector in push-out tests,” Eng. Struct., vol. 239, no. April, p. 112305, 2021, doi: 10.1016/j.engstruct.2021.112305. [11] Q. Zhang, D. Jia, Y. Bao, Z. Cheng, Y. Bu, and Q. i, “Analytical Study on Internal Force Transfer of Perfobond Rib Shear Connector Group Using a Nonlinear Spring Model,” J. Bridg. Eng., vol. 22, no. 10, pp. 1–11, 2017, doi: 10.1061/(asce)be.1943-5592.0001123. [12] X. Wang, Y. iu, Y. u, and X. i, “Shear transfer mechanism of perforated web connection for concrete encased steel structures,” Eng. Struct., vol. 252, p. 113418, 2022. [13] T. Hosaka, K. Mitsuki, H. Hiragi, Y. Ushijima, Y. Tachibana, and H. Watanabe, “An experimental study on shear characteristics of perfobond strip and its rational strength equations,” J. Struct. Eng. JSCE, vol. 46, pp. 1593–1604, 2000. [14] J. Guo, Q. Shi, G. Ma, and T. i, “Shear Behavior of Superposed Perfobond Connectors Considering ateral Constraints,” Appl. Sci., vol. 12, no. 6, Mar. 2022, doi: 10.3390/app12063162. [15] S. R. Hicks, J. Cao, C. McKenzie, M. Chowdhury, and R. Kaufusi, “Evaluation of shear connectors in composite bridges,” Wellington 6141, New Zealand, 2016. [16] V. Jayanthi and U. Gunasekaran, “Performance Evaluation of Different Types of Shear Connectors in Steel–Concrete Composite Construction,” Arch. Civ. Eng., vol. 64, pp. 97–110, 2018, doi: 10.2478/ace-2018-0019. [17] Iraqi Standard Specification I.Q.S, “Portland Cement,” no. 5, 2010. [18] Iraqi Standard Specification I.Q.S, “The Aggregate of Natural Source Used in Concrete,” no. 45, 2010. [19] . Pallarés and J. Hajjar, “Headed steel stud anchors in composite structures, Part I: Shear,” J. Constr. Steel Res., vol. 66, no. 2, pp. 198–212, 2010, http://www.sciencedirect.com/science/ article/ pii/S0143974X09002077 [20] American Association of State Highway and Transportation Officials, “AASHTO RFD Bridge Design Specifications,” 2017, p. 254. [21] American Institute of Steel Construction, AISC, “Specification for Structural Steel Buildings,” pp. 1–612, 2010. [22] Z. Chen, “Experimental study of shear capacity of perfobond connector,” vol. 29, no. 12, pp. 349–354, 2012. | ||
|
Statistics Article View: 417 PDF Download: 142 |
||
