JP / EN

HOUSING&ARCHITECTURE 1 GROUP

Evolving timber buildings for an amazing future

We are engaged in research and development of a wide range of timber engineering (mainly structure, fire resistance, and acoustics) for timber buildings including detached houses and mid- to large-scale buildings.
  • "Big Frame" for strong wooden houses

    We have developed the "Big Frame," that enables a rahmen structure in a wooden house, to realize high flexibility of planning for houses with the robust structue. We continue the evolution of timber buildings further.
  • "Post-tension seismic technology" that supports mid- to large-scale timber buildings

    "Post-tension seismic technology" is used to increase the rigidity and resilience of timber structures with loading tension between wall columns, beams and other components with steel rods. We contribute to support implementation of the techology in actual projects with repeating verification by structural tests.
  • Challenges to fire resistance required for mid- to large-scale buildings

    We developed the "Ki-Gurumi CT", a 3 hour fire-resistance structural member, using wood as a fire-resistance cladding. Using large scale furnaces, we conduct fire resistance tests on columns, beams, wall members, etc., assuming an actual building.
  • Full-scale experiments to confirm strength and seismic performance

    We conduct a wide range of experiments, from joints with a single nail to real-size structures. Through static load tests and vibration tests, we obtain data that cannot be obtained through the simulations to verify strength and earthquake resistance.
  • Improving livability from the viewpoint of acoustics and vibration

    We evaluate the sound insulation and room acoustics in the full-scale verification fields and the walking vibration evaluations of long-span floors in full-scale test specimens. Our developments contribute to the improvement of livability.