If the moment due to couple in a bearing plate (of width b) is M and the allowable bending stress in slab or bearing plates is $σ_{b}$ , then the thickness of bearing plate (t) is given by

- 1
  
  $t = \sqrt{\frac{M}{b . σ_{b}}}$
- 2
  
  $t = \sqrt{\frac{2 M}{b . σ_{b}}}$
- 3
  
  $t = \sqrt{\frac{4 M}{b . σ_{b}}}$
- 4
  
  $t = \sqrt{\frac{6 M}{b . σ_{b}}}$

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