AISC C Coefficient for Bolt Groups (with video) Nov 2017

Using the Instantaneous Center of Rotation Methodย  ย  All values of all C coefficients in one Excel tab !
Replaces 48 pages of design tables in the AISC Manual.
Allows any:

  • bolt quantity or
  • row spacing or
  • column spacing or
  • rotation

No manual interpolation required.


Concise and easy. See still shot.

And video.ย  ย 

Clarification: C values are for P load located at an eccentricity of ‘ex’; Cprime values are for pure moment loading

Verification: AISC โ€” one column of bolts. One column of bolts

Verification: AISC โ€” two columns of bolts. Two columns of bolts

    Karl Hoitsma, P.E. (khoitsma)

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