Abstract
Earthquake-proof measurement, control regulation and automation at the existence wooden architectures are urgent problems. This time we obtain an opportunity to perform the seismic diagnosis and the seismic strengthening design of the wooden kindergarten building. We inspected earthquake resistance using the way of finding a pillar joint reduction coefficient by calculating backward N value calculation method in this seismic diagnosis. We also propose an earthquake-proof diagnostic procedure for wooden architectures which were reinforced with the steel frame members.