Arch dams might be the only type of "contemporary" looking structure that is habitually made in this way out of unreinforced concrete.
Although Gaudi was interested in structural optimization (using catenary models), he is an outlier in terms of design. He didn't comprehensively consider seismic aspects, though apparently he didn't do too badly: https://blog.sagradafamilia.org/en/divulgation/seismic-activ...
It really means massiveness and stability, in order to have an acceptable margin of safety.
One aspect of the theory is the notion of a line of thrust: https://en.wikipedia.org/wiki/Line_of_thrust
Arch dams might be the only type of "contemporary" looking structure that is habitually made in this way out of unreinforced concrete.
Although Gaudi was interested in structural optimization (using catenary models), he is an outlier in terms of design. He didn't comprehensively consider seismic aspects, though apparently he didn't do too badly: https://blog.sagradafamilia.org/en/divulgation/seismic-activ...