the

sistance of the steel buildings in the 40's without the need of also used riveted construction and A-7 Steel. This type large result of large joint rotations. either buckled or in tension, and some of the buildings lateral deflections which condemned them like the City Hall building com- at the Central in City, fared very well typical of the ductility levels exhibited by these connections overcame the large demands of overloading produced by the extreme earthquake suffe-