ASI有限要素法によるRC骨組構造の地震崩壊解析
Seismic damage analysis of reinforced concrete building by using the ASI finite element method

Abstract


The Adaptively Shifted Integration (ASI) technique, which produces the highest computational efficiency in the finite element analysis of framed structures including static and dynamic collapse problems, is applied to the seismic damage analysis of reinforced concrete building. By expressing a fracture by a plastic hinge located at the exact position with a simultaneous release of resultant forces in the element, strong non-linear and discontinuous problem such as this can be easily analyzed even by the finite element code with the displacement form. By using the algorithms described in this paper, sufficiently reliable solutions for the practical use have been obtained in the seismic damage analysis of a 5 stories-5 span reinforced concrete building in which the ground acceleration record of the Great Hanshin Earthquake is used.