Structural Engineering and Mechanics

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Numerical studies on shear connectors in push-out tests under elevated temperatures

  • Wang, Aaron J. (Corporate Technical Management, CapitaLand Management (China) Co. Ltd.)
  • Received : 2010.02.20
  • Accepted : 2011.03.23
  • Published : 2011.08.10
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Abstract

Three-dimensional thermal and mechanical coupled finite element models are proposed to study the structural behaviours of shear connectors under fire. Concrete slabs, steel beams and shear connectors are modelled with eight-noded solid elements, and profiled steel deckings are modelled with eight-noded shell elements. Thermal, mechanical and geometrical nonlinearities are incorporated into the models. With the proper incorporation of thermal and mechanical contacts among steel beams, shear connectors, steel deckings and concrete slabs, both of the models are verified to be accurate after the validation against a series of push-out tests in the room temperature or under the standard fire. Various thermal and mechanical responses are also extracted and observed in details from the results of the numerical analyses, which gives a better understanding of the structural behavior of shear connectors under elevated temperatures.

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  2. Performance and design of shear connectors in composite beams with parallel profiled sheeting at elevated temperatures vol.16, pp.1, 2016, https://doi.org/10.1007/s13296-016-3016-x
  3. Behaviour and design of shear connectors in composite slabs at elevated temperatures vol.115, 2015, https://doi.org/10.1016/j.jcsr.2015.08.025