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Finite Element Approach to Evaluate Time Dependent Shear Behavior of Connections in Hybrid Steel-PC Girder under Sustained Loading

Authors: Mohammad Najmol Haque, Takeshi Maki, Jun Sasaki

Abstract:

Headed stud shear connections are widely used in the junction or embedded zone of hybrid girder to achieve whole composite action with continuity that can sustain steel-concrete interfacial tensile and shear forces. In Japan, Japan Road Association (JRA) specifications are used for hybrid girder design that utilizes very low level of stud capacity than those of American Institute of Steel Construction (AISC) specifications, Japan Society of Civil Engineers (JSCE) specifications and EURO code. As low design shear strength is considered in design of connections, the time dependent shear behavior due to sustained external loading is not considered, even not fully studied. In this study, a finite element approach was used to evaluate the time dependent shear behavior for headed studs used as connections at the junction. This study clarified, how the sustained loading distinctively impacted on changing the interfacial shear of connections with time which was sensitive to lodging history, positions of flanges, neighboring studs, position of prestress bar and reinforcing bar, concrete strength, etc. and also identified a shear influence area. Stud strength was also confirmed through pushout tests. The outcome obtained from the study may provide an important basis and reference data in designing connections of hybrid girders with enhanced stud capacity with due consideration of their long-term shear behavior.

Keywords: Finite element approach, hybrid girder, headed stud shear connections, sustained loading, time dependent shear behavior.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.3461972

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References:


[1] D.J. Oehlers, M.A. Bradford, Composite Steel and Concrete Structural Members, Elsevier Science Ltd, 1995,
[2] J.F. Chooa, Y.C. Choib, W.C. Choic, S.W. Yoo, Behavioral characteristics of hybrid girders according to type of steel–concrete connection, Archives of civil and mechanical engineering, 19 (2019), pp. 47–62.
[3] J. Nie, C.S. Cai, Steel-Concrete Composite Beams Considering Shear Slip Effects, Journal of Structural Engineering, ASCE, April 2003, pp. 495-506.
[4] S.E. Kim, H.T. Nguyen, Evaluation of connection efficiency of hybrid steel-concrete girder using finite element approach, International Journal of Mechanical Sciences, 61 (2012), pp. 8–23.
[5] Y. Deng, G. Morcous, Efficient Prestressed Concrete-Steel Composite Girder for Medium-Span Bridges. I: System Description and Design, Journal of Bridge Engineering, ASCE, December 2013, pp. 1347-1357.
[6] H. Shinozaki, H. Asai, Y. Kaminaga, T. Maki, H. Mutsuyoshi, A study on joint of composite steel girder and PC girder using shear connecting method, Journal of Structural Engineering, JSCE, Vol.60A(2014/3), pp. 861-871.
[7] A. Prakash, N. Anandavalli, C.K. Madheswaran, J. Rajasankar, N. Lakshmanan, Three-Dimensional FE Model of Stud Connected Steel-Concrete Composite Girders Subjected to Monotonic Loading, International Journal of Mechanics and Applications, 2011 1(1), pp. 1-11.
[8] E. Allobody, Finite Element Analysis and Design of Steel and Steel-Concrete Composite Bridges, 2014.
[9] T. Anju, K.K. Smitha, Finite Element Analysis of Composite Beam with Shear Connectors, International Conference on Emerging Trends in Engineering, Science and Technology (ICETEST - 2015), Procedia Technology, 24 (2016), pp. 179 – 187.
[10] American Institute of Steel Construction, Specification for Structural Steel Buildings, 130 East Randolph Street, Suite 2000 Chicago, Illinois, 60601-6204, July 2016.
[11] European Committee for Standardization, Eurocode 4: Design of composite steel and concrete structures-Part 1-1: General rules and rules for buildings, Management Centre, rue de Stassart, 36 B-1050 Brussels, December 2004.
[12] Japan Road Association, Specifications for Highway Bridges, Part-2-Steel Bridges. Tokyo, Japan, 2002.
[13] Japan Society of Civil Engineers, Standard Specifications for Steel and Composite Structures, Tokyo, Japan, December 2009.
[14] M. Nagai, E. Yamaguchi, T. Yoda, K. Nogami, Recent trend on design and construction of steel and composite bridges in Japan, IABSE-JSCE Joint Conference on Advances in Bridge Engineering-II, Dhaka, Bangladesh, August 2010.
[15] T. Maki, R. Watanabe, Mechanical Behavior of Stud Shear Connector under Sustained Shear and Compression Forces, The Proceedings of the Thirteenth East Asia-Pacific Conference on Structural Engineering and Construction, , Hokkaido, Japan, 2013.
[16] Japan Society of Civil Engineers, Standard Specifications for Hybrid Structures 2014, Tokyo, Japan, March 2015.
[17] A.H. Nilson, D. Darwin, C.W. Dolan, Design of Concrete Structures, The Mac-Graw Hill Companies, Inc., Avenue of the Americas, New York, NY 10020, 2010.
[18] Introductory course on finite element method for marine engineers, Journal of the JIME, Vol. 49, No. 2, 2014.
[19] N. Ueda, K. Phamavanh, R. Sano, H. Nakamura, M. Kunieda, Study on Evaluation Method on Damage Region and Failure Criterion on RC Member Failed in Shear Compression by Means of Strain Index, Journal of JSCE (Material. Concrete Structures), Vol. 70, No. 1, 2014, pp. 1-18.
[20] Y. Okui, M.Nagai, Block FEM for Time-Dependent Shear-Lag Behavior in Two-I Girder Composite Bridges, Journal of Bridge Engineering, ASCE, 12(1), January/February 2007, pp. 72-79.