@article{oai:tokyo-metro-u.repo.nii.ac.jp:00004844, author = {Mochizuki, Toshio and Matsuda, Iware and Enomoto, Takahisa and Miyano, Michio and Koizumi, Toshikazu and 望月, 利男 and 松田, 磐余 and 荏本, 孝久 and 宮野, 道雄 and 小泉, 敏一}, issue = {17}, journal = {総合都市研究}, month = {}, note = {中低層のRC造建物は地震時にしばしば被害を受ける。特に,1968年十勝沖地震ならびに1978年宮城県沖地震時には近代的なRC造建物が少なからず被害を受けた。これらの造建物の被害と地盤との関係については既往の被害調査に基づく検討結果から両者の相関性が比較的明瞭であり,その傾向を無視することができないと報告されている。しかしながら都市に多く分布している同様な中低層RC造建物の地震時の被害を地盤との相関性を考慮して解析的に検討された研究は,その重要性にもかかわらずまだ数少ない。そこで本研究では,主にDynamical Ground Compliance理論に基づいて地盤ー建物連成効果を考慮したRC造建物の振動モデルを作成する手法を用いて,表層地盤の地盤特性をパラメトリッグに変化させた場合の地盤一建物連成系の質点モデルを作成し,次いで応答解析を実施することによってRC造建物の地震時の被害についての解析的な研究を試みることにした。その結果,すでに調査報告されたRC造建物の地震時の被害と地盤の相関性に関する傾向が,応答計算によって解析的に検討された結果と比較的良好な対応関係を示したので報告する。, RC buildings of a few stories are in many cases heavily damaged by a strong earthquake motion. It is geneally understood that the main reason for this kind of damage lies in the interaction between structure and ground condition caused by an incident seismic wave. This paper is an investigation about the damage of RC buildings caused by the 1968 OFF-TOKACHI EARTHQUAKE and the 1978 OFF-MIYAGI PREF. EARTHQUAKE by using the GROUND COMPLIANCE THEORY which considetes the interaction between soil and structure. Various examinations wete made about the structural properties (stories,scales,columns,walls etc.,) the grade (completely-,heavily, half-,slightly-destroyed and undamaged) and the ground conditions of damaged and undamaged buildings in the disaster-striken areas. So we made the experimental expression which calculates shear wave velocity from the data of soil exploration and produced an analytical vibration model of buildings by a spring-mass system which is considered the interaction of soil-structure system. By the CONVOLUTION INTEGRAL METHOD we evaluated the incident wave varying with the ground condition. And we made the response calculation by using the above model which has elasto-plastic restoring force characteristics called POWER FUNCTION TYPE. We report the result of this analysis because we could comparatively well explain the relationship between the damage of RC building and the ground conditions by using the model considered in this paper. The results of this investigation can be summarized as follows. 1) The experimental expression for estimating the shear wave velocity of each soil which constitutes surface multilayered ground conditions from the data of soil exploration is Vs = a・N^b・D^c・…… (1) where Vs is shear wave velocity,N is the N-value of standard penetration test,D is the depth from the surface to the middle point of each soil layer and a, b and c are thee coffciernts which we evaluated by MULTIPLE LINEAR REGRESSION ANALYSIS. This expression corresponds well to the measured value of shear wave velocity. 2) In both earthquakes mentioned above,the damage of RC buildings corresponds relatively well to the surface ground conditions which are grouped into four classes according to the aseismic design code for architectural structures in Japan. It is thought that this result indicates the influence of the soil-structure interaction. 3) It is also found that the actural earthquake damage grades of RC buildings are well explained by the results of elastoplastic response calculation of spring-mass analytical vibration model which is considered the soil-structure interaction by using the GROUND COMPLIANCE THEORY., postprint}, pages = {31--46}, title = {地盤との連成効果を考慮したRC造建物の震害に関する研究}, year = {1983} }