NIED and the CNR-IVALSA (Director: Professor. Ario Ceccotti) carried out international collaboration experiments on a seven-story wooden structure using E-Defense. This specimen used X-LAM system (massive wooden panels with cross-wise glued layers of planks) are made of cross-wise glued layers of boards with an average thickness of 2 cm by SOFIE project. SOFIE is a research project on sustainable buildings carried out by the IVALSA Institute of the National Research Council with the support of Provincia Autonoma di Trento. The specimen is about 7.5m by 15.0m, and 23.5m in height.

It is pointed out that plate-boundary earthquakes cause long-period ground motions in large cities of Japan.They input large seismic energy exceeding the level of design assumptions into high-rise buildings.
In this study, researches and developments are carried out in regard to assessment of the seismic performance of high-rise buildings. The final aim is to mitigate the concerned disaster.

An amplifying system was installed between the shaking table and the upper structure of a five-story steel structure frame. The amplifying system comprising two layers has four laminated rubber bearings with the diameter of 1.0 m in each layer. The amplification effect becomes double of the deformation capacity of one laminated rubber bearing. In an office, lockers fall down on workers. If the room is organized, the situation is very different. In a kitchen, many things, such as a refrigerator and knives, attack residents. If prepared, the situation is also very different. In a bed room, grandfather, who can not stand up by himself, sustains fatal wound because of no preparations.

The tests were conducted to investigate the seismic performance of a steel building comprising the moment frame.

The test was conducted to investigate the seismic performance of part of a high-rise building. The damage of outer walls, ceilings and furniture and household were inspected.

In Dai-Dai-Toku�U project, shaking table tests on wooden houses were conducted to investigate the seismic performance of wooden houses.

In Dai-Dai-Toku�U project, shaking table tests on wooden houses were conducted to investigate the seismic performance of wooden houses

In Dai-Dai-Toku�U project, shaking table tests on Low-rise RC school buildings were carried out to investigate the seismic performance

In Dai-Dai-Toku�U project, shaking table tests on Large-scale rectangular rijid container were conducted to investigate the seismic performance of Soil-Pile-Structure Systems

NIED carried out a full-scale earthquake simulation test on reinforced concrete building structure using E-Defense on January 2006. The test was conducted as a part of five-year national research project, called DaiDaiToku project. The specimen was a 6-story wall-frame structure, 2 by 3 bays, total weight was 1,000 tonf. Outline of the test

Two wooden houses built before updating 1981 Japanese Building Code were tested. They were actually built in Akashi city in Hyogo Pref. and moved to E-Defense. One of the houses was reinforced to enhance the seismic resistances, and the other was changed nothing. These two models were set on E-Defense and tested simultaneously.

The test models in this case are the Kyoto-style traditional wooden houses constructed more than 50 years ago and expected sever damages by a destructive earthquake. One of the models was actually built in Kyoto city and moved to E-Defense for this experiment. The other model was a newly built wooden house, which had almost same plan with moved one but newly designed wooden frames. These two models were set on E-Defense and tested simultaneously.