@article{oai:kanazawa-u.repo.nii.ac.jp:00058737,
 author = {Murata, Akira and Jomen, Tohru and Kitaura, Masaru and Miyajima, Masakatsu and 村田, 晶 and 定免, 徹 and 北浦, 勝 and 宮島, 昌克},
 journal = {土木学会地震工学論文集, Proceedings of the JSCE Earthquake Engineering Symposium},
 month = {},
 note = {現行の耐震設計は上下および水平2方向に対して記録された観測記録に基づいているが、構造物の地表面に対する広がり程度の範囲内に2箇所以上の地震計が設置されていることはまずないから、構造物基礎に入射するすべての波形を観測することはできない。ところが地盤の不均一性や波の伝播特性により、構造物には回転成分、動揺成分のような複雑な震動が入力される。そこで本研究では、そのような回転・動揺成分を動揺地震動と呼び、不整形地盤上で発生した動揺地震動が構造物にどのような影響を及ぼすかを実験、解析によって検討した。その結果、動揺地震動が構造物頂部における水平応答の増幅、減少に大きく影響すること、また構造物の軸力、せん断力の増加に寄与することを明らかにした。, Two horizontal components and a vertical component are usually employed in seismic observations. Therefore, only those components are used as the input ground motions in seismic design code. Seismographs are generally installed more than several hundred meters apart from each other even in arrayed observations. Since two or more seismographs are hardly installed in the width about the foundation of a structure, no waveforms which carry out incidence to the foundation can be observed. However, with the variation characteristic of the foundation or the propagation characteristic of a wave, complicated earthquake motions like rotational or rocking component is inputted into a structure. Such component may have an impact on some rigid structures as well as flexible structures. It is indispensable to examine the effects of this component on structural response. In this study, experiments using the model ground excited by a shaking table and simulations of structure motion using FEM are carried out, in which existence of rocking components are examined in earthquake motion generated at various grounds such as the ground with irregular form ground. As a result, it is clarified that rocking earthquake motion contributes to the amplification of the horizontal response, axial force and share force of a structure., 金沢大学理工研究域地球社会基盤学系},
 title = {不整形地盤における動揺地震動特性が構造物応答に及ぼす影響},
 volume = {28},
 year = {2005}
}