Every earth quake causes serious damage to human society, especially to non-engineered structures like adobe, nonreinforced masonry of stone, brick or concrete block beca [...]

Seismic isolation is one of very effective ways to mitigate damages to building/houses caused by earthquakes. However, the application is still limited to specific buildi [...]

Non-engineered houses are constructed with no or little technical intervention and need more to be safer against earthquakes. There are several guidelines, recommendation [...]

Every large scale earthquake causes tragic damages to human societies especially human casualties. Sichuan Earthquake 2008 reminded us the fact again. Main cause of the h [...]

This paper verifies the simplified evaluation method for the seismic performance base on wall ratio of masonry structure. Load bearing wall such as shear wall which are t [...]

Recently, many high-rise buildings with the center core structure system having high strength reinforced concrete shear walls have been constructed in Japan. Severe earth [...]

In under-developing countries, many devastating earthquake damages occurred. In order to mitigate the damage of under-developing countries, Japanese research group has in [...]