The Restration of Todai-ji Daibutsu-den in the Meiji Era began in 1891 and was completed in 1913. The design of restoration changed many times, but the last they designed "Katetsutyu", it put steels into wooden pillars and fasten steel truss. This paper introduces these designs, and analyzes the last plan based on 1) the plan of wooden truss designed by Suketaro Kagotani and others, and 2) the hoop-iron construction it was also known as Tsumakishiki-koho. It is the transitional technique in the first stage of introducing steel structures to Japan.
