Volume 30 Issue 4
Jul 2016
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XIAN Yu-Xi, WEN He-Ming. Dimensionless Formulae for Punching Shear Strengthof Reinforced Concrete Slabs[J]. Chinese Journal of High Pressure Physics, 2016, 30(4): 291-300. doi: 10.11858/gywlxb.2016.04.005
Citation: XIAN Yu-Xi, WEN He-Ming. Dimensionless Formulae for Punching Shear Strengthof Reinforced Concrete Slabs[J]. Chinese Journal of High Pressure Physics, 2016, 30(4): 291-300. doi: 10.11858/gywlxb.2016.04.005

Dimensionless Formulae for Punching Shear Strengthof Reinforced Concrete Slabs

doi: 10.11858/gywlxb.2016.04.005
Funds:

National Natural Science Foundation of China 11172298

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  • Author Bio:

    XIAN Yu-Xi (1981—), male, doctor, major in impact dynamics.E-mail: yyxian@ustc.edu.cn

  • Corresponding author: WEN He-Ming (1965—), male, master, professor, major in impact dynamics.E-mail: hmwen@ustc.edu.cn
  • Received Date: 25 Aug 2014
  • Rev Recd Date: 05 Nov 2014
  • Punching shear plays a very important role in assessing the load carrying capacities of connections between slabs and columns or slabs loaded by flat-faced punches, especially in the safety calculation and assessment of containment structures in nuclear power plants.For many years this has been examined by researchers and the influences of the span-to-depth ratio on punching shear strengths are often neglected, and all the equations employed in the current codes are dimensionally inconsistent.We proposed a dimensionless new empirical equation to predict the punching shear strengths of reinforced concrete circular slabs without shear reinforcement which are loaded quasi-statically by flat-faced circular indentors.In the present formulation, we took into consideration various effects such as rebar quantity, rebar spacing and span-to-depth ratio.It is shown that the present equation is in good correlation with available experimental results.It is also shown that the present equation is applicable to square punches as well as square slabs.

     

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