Quote Originally Posted by papi smith View Post
Makes sense, but still curious, will the usual rebars or steel beams be used? Or are there specially fabricated steel "skeletons" or concrete mixes, for these far reaching overhangs? Or does the roof overhang provide additional support. Sorry didn't do well in my physics class. [emoji16]
Many variables & ways. Commercial rebars come in varied yield strengths(G40*40kpsi/G60*60kpsi), sizes & lengths. Concrete strength is in direct proprtion to cement factor(weight or bags) in a given volume, usually in m³...& there are additives that tweak specific characteristics. These are for your regular reinforced concrete.
Alternative ways for reinforced concrete to achieve longer spans, slimmer sections & limit deflections are pre-stressing & post tensioning. These are specialized services your structural engineer can advise you on.
Re the role of individual structural members, they all are factors, primary or secondary, to the stability of the structural framework as a whole when subjected to varied magnitudes & directions of dynamic & static forces thru axes X,Y,Z.

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