Comparing CP3 and BS 6399: Part 2 - 'Division by Parts' Rule
In my first feature comparing CP32 and BS 6399: Part 23 I focused on misapplication of
the CP3 rules for changes of roughness as the principal reason that BS 6399: Part 2 is erroneously perceived to give larger loads than CP3. However, there is one change between the two Codes that does tend to increase structural loads and that is the modification of the ‘division by parts’ rule - clause 5.5.2 of CP3 and clause 2.2.3.2 of BS 6399: Part 2.
N.J. Cook
Author(s): Cook, N J
Keywords: codes of practice;comparing;cp3;bs6399;wind loads;design