AS 3600 pointing at AS 3850.1 for cast-in fixings (anchor bolts) always seemed wrong to me. The appendix in AS 3850.1 follows basically the same method as AS 5216, but is for single cast-in lifting points and has no coverage of anchor groups as would be typically required for anchor bolts in a...
Generally, yes. Materially non-linear analyses optimise the structure by consideration of load redistributions to exploit additional resistance and a reduction of member forces in the case of restraints which is not considered in linear-elastic analyses.
Material non-linearity can be incorporated into the stiffness method using Newton-Raphson iterations until convergence is achieved.
Materially nonlinear plastic analysis is permitted in most standards, but in design practice, the complex calculations are rarely justified due to difficulties in...
