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内容記述 |
The Japanese Islands are said to have entered at the seismic activity term from the time of the Kobe earthquake (1995). And it is said that the big earthquake from Hokkaido to Kyushu occurs in the probability of 90% within 50 years. When such a big earthquake occurs, collapse of a structure is one of main causes of bringing about serious damage. The Building Standard Law was improved in the past earthquake, and the building structure which is less than a Building Standard Law act has the very high danger of collapse and it is because many victims by an earthquake are also generated by building collapse. In the damage situation of the southern Hyogo earthquake which occurred in Heisei 7, the dead (death from pressure and death in the flames) who consider collapse of a residence as a cause actually formed about 90 percent of the whole, and the most was the existing disqualified structure. From this, in order to reduce the damage after an earthquake, it is recognized also from this thing that prior hard measures, such as antiseismic reinforcement of the existing disqualified structure, are required, and it becomes important to perform the antiseismic reinforcement of a residence immediately for that purpose. Now, according to Headquarter of Earthquake Research Promotion, the Tonankai and Nankai earthquakes will be expected to happen at 80~90% in 50 years at 40~50% in 30 years from now on. However, as the present condition of Kochi Prefecture, according to a residence and land investigation estimation, the rate of the formation of building earthquake-proof within the prefecture is about 60%, and is a level which is much less than 75% of the national average. Moreover, since the support system to the antiseismic reinforcement which a local-goverment supports etc. is not utilized enough, it can observe that it is low in civic consciousness about the measure against antiseismic reinforcement. As such a cause, there are dearth of information about earthquake resistant and the labor burden in procedure and antiseismic reinforcement is a big-ticket burden, even if it uses local government support system. It is thought that these have been obstacles.In order to overcome this present situation, examination of the prior measure system which reduces earthquake damage is important. Antiseismic reinforcement promotion is prevention of not only mitigation of the death toll immediately after disaster but a road blockade, mitigation of the cost which disposal takes and a labor burden, the increase in the participant in initial support in a stricken area etc, and it leads also to mitigation of the expense concerning a makeshift house or housing reconstruction. But, since the source of revenue which can be distributed to various measures is limited, it is necessary to specify the subject which should be tackled immediately for the time being, and to implement a measure efficiently. In the goverment, it aims at making the rate of antiseismic reinforcement of a building 90% by the Heisei 27 year as a statement of principles, and the measure planning support for attaining this serves as pressing need. Then, it set up on the theme of antiseismic reinforcement promotion of the existing disqualified structure for the purpose of "improvement in the rate of antiseismic reinforcement" of the whole country including Kochi Prefecture. And it aims at building the antiseismic reinforcement consciousness model as a policy evaluation tool for supporting the design of policy for it. |
SMS08-126.pdf (702.7 kB)
