The H Bubbletecture or this extraordinary library is sited on the steep slope of the north side in the forest in the province Sayo-cho Hyogo, Japan.

 

Japanese cypress thinning wood log that is used for superstructure is provided with the intention of realizing the light structure as well as standardizing and improving the work efficiency of the timber using, and to fix the amount of CO2 emission.

 

One of the part of the building that touches the ground is RC structure and composed underground beam, and the other part of the building that floating from the ground is SRC structure which used a steel frame together. They are connected and composed footing beam. And the floating part with underground beam is supported by the building frame of RC that is also used as a water tank for fire prevention.

 

The rooms such as a waiting room or the office which are arranged in the space of the truss constitute are composed with general RC wall-type structure and steel-frame structure.