The majority of construction regulations I've run into are relatively flexible. It's expensive but if you want to try out a new material or technique, the path

The majority of construction regulations I've run into are relatively flexible. It's expensive but if you want to try out a new material or technique, the path to validating it and getting it approved is well defined. The problem is that few construction companies operate at that kind of scale and outside of churches, flagship venues (i.e. Disney hall), and palaces there just isn't enough money to develop new technologies.