{"_buckets": {"deposit": "8137f244-22e5-4a7f-b6f0-c54b408fce9b"}, "_deposit": {"created_by": 10, "id": "6009", "owners": [10], "pid": {"revision_id": 0, "type": "depid", "value": "6009"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00006009", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "12", "bibliographicVolumeNumber": "11", "bibliographic_titles": [{"bibliographic_title": "GEOSCIENCES", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "A number of vertical array records during eight destructive earthquakes in Japan are utilized, after discussing criteria for desirable requirements of vertical arrays, to formulate seismic amplification between ground surface and outcrop base for seismic zonation. A correlation between peak spectrum amplification and V-s (S-wave velocity) ratio (base V-s/surface V-s) was found to clearly improve by using V-s in an equivalent surface layer wherein predominant frequency or first peak is exerted, though the currently used average V-s in top 30 m is also meaningful, correlating positively with the amplification. We also found that soil nonlinearity during strong earthquakes has only a marginal effect even in soft soil sites on the amplification between surface and outcrop base except for ultimate soil liquefaction failure, while strong nonlinearity clearly appears in the vertical array amplification between surface and downhole base. Its theoretical basis has been explained by a simple study on a two-layered system in terms of radiation damping and strain-dependent equivalent nonlinearity.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "MDPI", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.3390/geosciences11120510"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "2076-3263", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Takaji Kokusho", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Tomohiro Ishizawa", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Site Amplification during Strong Earthquakes Investigated by Vertical Array Records", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Site Amplification during Strong Earthquakes Investigated by Vertical Array Records", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "10", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/6009", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2024-04-15"}, "publish_date": "2024-04-15", "publish_status": "0", "recid": "6009", "relation": {}, "relation_version_is_last": true, "title": ["Site Amplification during Strong Earthquakes Investigated by Vertical Array Records"], "weko_shared_id": -1}