When doing research and development, reinforced concrete members, also in which historically from wall members, consisting of normal strength materials which is usually used were set as the main analyses target at the beginning. In this stage, it was the main roles to analyze as a complement or substitution of a loading experiment.

Then, it will step toward an applied research and the step which promotes utilization of analytical technology in the stage it is in prospect to basic research. It is striving for enlargement of applicable range and analyses target by aiming at development to high strength materials, steel fiber concrete, self-compacting concrete, expansive concrete, prestressed concrete except normal strength materials, furthermore steel-concrete composite etc., and also by coping with a coupled-analysis with the circumference foundation.

These results are also coming out fully, and they are utilized for design verification (including back data) of structures adopted the new style type or seismic damage analyses^1)〜3)etc.. Moreover, they are utilized and their results are taken also in many scenes in various committee report, standard specification and guidelines.

Succeedingly, we are going to continue advance research and investigation so that the candidate for an analysis can be expanded. Especially in a coupled-problem with the foundation, the enlargement to stress and deformation verification including the diaphragm wall etc. at the time of construction⁴⁾ or liquefaction problem with effective stress analysis is also put into the view, and preparing the establishment has been finished mostly.

　

　

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