Testing and Numerical Modelling of Steel-Concrete-Steel with Stud Bolts Connectors Subject to Push-Out Loading

Document Type: Regular Paper

Authors

1 Ph.D. Candidate, Civil Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

2 Associate Professor, Civil Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran

Abstract

Steel-concrete-steel (SCS) sandwich panels are composed of two steel plates with low thicknesses and high densities and strengths and one thick layer between both plates with low strength and density known as core that is composed of concrete. Cohesive material-epoxy resin or shear connectors are usually applied in order to connect the plates to the concrete core. SCS sandwich composites are being developed so they can be utilized in offshore structures and buildings. Stud bolt is one of the shear connectors and their interlayer shear behavior is examined in the present study. In order to inspect the effect of parameters on interlayer shear behavior of steel-concrete-steel sandwich structure with stud bolt connectors, push-out test is performed under progressive loading. Pursuant to the tests performed, relations are proposed to predict ultimate shear strength and load-slip behavior of samples with stud bolt shear connectors. Consequently, numerical model of push-out test is presented on the basic component of Steel-Concrete-Steel sandwich structure (SCS) with stud bolt connectors. The results indicated that finite element model is consistent with test results applying mass scaling in Explicit Solver with a suitable analysis speed. Applying the regression analysis on the results of 80 numerical models of push-out test,a relation was proposed for shear strength of push-out samples with stud bolt connectors.

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[1]      X. Dai and J. R. Liew, "Fatigue performance of lightweight steel–concrete–steel sandwich systems," Journal of Constructional Steel Research, vol. 66, pp. 256-276, 2010.

[2]      S. Solomon, D. Smith, and A. Cusens, "Flexural tests of steel-concrete-steel sandwiches," Magazine of Concrete Research, vol. 28, pp. 13-20, 1976.

[3]      P. Bergan and K. Bakken, "Sandwich design: a solution for marine structures," inProceedings of the international conference on computational methods in marine engineering. Eccomas Marine, 2005.

[4]      P. Marshall, A. Palmer, J. Liew, T. Wang, and M. Thein, "Bond enhancement for sandwich shell ice wall," 2010.

[5]      M. Tomlinson, A. Tomlinson, M. Li Chapman, A. Jefferson, and H. Wright, "Shell composite construction for shallow draft immersed tube tunnels," in Immersed Tunnel Techniques: Proceedings of the Conference, 1989, p. 209.

[6]      J.-B. Yan, J. R. Liew, and M.-H. Zhang, "Shear-tension interaction strength of J-hook connectors in steel-concrete-steel sandwich structure," ISSN 1816-112X, vol. 115, p. 73, 2015.

[7]      K. Sohel and J. R. Liew, "Steel–Concrete–Steel sandwich slabs with lightweight core—Static performance," Engineering Structures, vol. 33, pp. 981-992, 2011.

[8]      I. Viest, "Investigation of stud shear connectors for composite concrete and steel T-beams," in Journal Proceedings, 1956, pp. 875-892.

[9]     J. Ollgaard, R. Slutter, and J. Fisher, "Shear strength of stud connectors in lightweight and normal weight concrete, AISC Eng'g Jr., April 1971 (71-10)," 1971.

[10]    J. G. Ollgaard, R. G. Slutter, and J. W. Fisher, "Shear strength of stud connectors in lightweight and normal weight concrete," AISC Engineering Journal, vol. 8, pp. 55-64, 1971.

[11]    D. J. Oehlers, "Splitting induced by shear connectors in composite beams," Journal of Structural Engineering, vol. 115, pp. 341-362, 1989.

[12]    W. Xue, M. Ding, H. Wang, and Z. Luo, "Static behavior and theoretical model of stud shear connectors," Journal of Bridge Engineering, vol. 13, pp. 623-634, 2008.

[13]    L. An and K. Cederwall, "Push-out tests on studs in high strength and normal strength concrete," Journal of Constructional Steel Research, vol. 36, pp. 15-29, 1996.

[14]    A. Committee, A. C. Institute, and I. O. f. Standardization, "Building code requirements for structural concrete (ACI 318-08) and commentary," 2008.

[15]    A. Committee, "Specification for Structural Steel Buildings (ANSI/AISC 360-10)," American Institute of Steel Construction, Chicago-Illinois, 2010.

[16]    E. CEN, "4. Design of Composite Steel and Concrete Structures. Part 1.1: General Rules and Rules for Buildings," EN 1993-1-1, Comite Europeen de Normalisation (CEN), European Committee for Standardization, Brussels, Belgium2005.

[17]    L. B. D. Specifications, "Aashto Washington," DC, USA, 2004.

[18]    N. Foundoukos, M. Xie, and J. Chapman, "Fatigue tests on steel–concrete–steel sandwich components and beams," Journal of Constructional Steel Research, vol. 63, pp. 922-940, 2007.

[19]    N. Foundoukos and J. Chapman, "Finite element analysis of steel–concrete–steel sandwich beams," Journal of Constructional Steel Research, vol. 64, pp. 947-961, 2008.

[20]    M. Xie, N. Foundoukos, and J. Chapman, "Experimental and numerical investigation on the shear behaviour of friction-welded bar–plate connections embedded in concrete," Journal of Constructional Steel Research, vol. 61, pp. 625-649, 2005.

[21] N. Foundoukos, M. Xie, and J. Chapman, "Fatigue tests on steel–concrete–steel sandwich components and beams," Journal of Constructional Steel Research, vol. 63, pp. 922-940, 2007.

[22]    N. Shanmugam, G. Kumar, and V. Thevendran, "Finite element modelling of double skin composite slabs," Finite elements in analysis and design, vol. 38, pp. 579-599, 2002.

[23]    M. Smitha and S. S. Kumar, "Steel–concrete composite flange plate connections—finite element modeling and parametric studies," Journal of Constructional Steel Research, vol. 82, pp. 164-176, 2013.

[24]    K. Khorramian, S. Maleki, M. Shariati, A. Jalali, and M. Tahir, "Numerical analysis of tilted angle shear connectors in steel-concrete composite systems," steel and composite structures, vol. 23, pp. 67-85, 2017.