Pretty much. If you look into the construction, the structural steel components were around the perimeter of the building forming an exoskeleton as opposed to how they normally design skyscrapers with the steel stemming from the center of the structure; the elevator core. The steel exoskeleton made up the structure of “curtain wall” which is the exterior envelope closing off the building. The windows, which were fixed, fit in between the steel exoskeleton - making them incredibly small windows as compared to structures you would see built today.
Structural steel is indeed more tougher than aircraft grade aluminum. There indeed had to be explosives that detonated almost simultaneously to bring a very well built structure like that down in a controlled demolition like manner.
Pretty much. If you look into the construction, the structural steel components were around the perimeter of the building forming an exoskeleton as opposed to how they normally design skyscrapers with the steel stemming from the center of the structure; the elevator core. The steel exoskeleton made up the structure of “curtain wall” which is the exterior envelope closing off the building. The windows, which were fixed, fit in between the steel exoskeleton - making them incredibly small windows as compared to structures you would see built today.
Structural steel is indeed more tougher than aircraft grade aluminum. There indeed had to be explosives that detonated almost simultaneously to bring a very well built structure like that down in a controlled demolition like manner.