抄録
After the turn of the Twentieth century, American industrial buildings develop some innovative design vocabularies which include concrete frame, ribbon window, and glass curtain-wall. The main motive of such development is a demand for natural lighting. A multi story ferroconcrete structure develops from a bearing wall into a grid frame wall and a cantilevered non-bearing wall with ribbon window. On the other hand, a one story steel structure develops from a large glass window into a pillarless glass curtain-wall.
