ᮾᛴᘓタᢏ⾡◊✲ᡤሗ No.38 Ⓨ⏕᪥ 㟈※ᆅ䞉ᆅ㟈ྡ䛺䛹 ⦋ ᮾ⤒ 㟈※῝䛥 䢋䡴䢚䢂䡽䡩䡬䢀䢚 㻞㻜㻜㻤㻛㻡㻛㻤㻌㻝㻦㻠㻡 Ⲉᇛ┴Ἀ 㻟㻢㻚㻞㻟 㻝㻠㻝㻚㻢㻝 㻡㻝㼗㼙 㻹㻣㻚㻜 㻞㻜㻜㻤㻛㻢㻛㻝㻠㻌㻤㻦㻠㻟 ᒾᡭ䞉ᐑᇛෆ㝣ᆅ㟈 㻟㻥㻚㻜㻟 㻝㻠㻜㻚㻤㻤 㻤㼗㼙 㻹㻣㻚㻞 㻞㻜㻜㻤㻛㻣㻛㻞㻠㻌㻜㻦㻞㻢 ᒾᡭ┴ἢᓊ㒊ᆅ㟈 㻟㻥㻚㻣㻟 㻝㻠㻝㻚㻢㻟 㻝㻜㻤㼗㼙 㻹㻢㻚㻤 㻞㻜㻝㻜㻛㻟㻛㻝㻠㻌㻝㻣㻦㻜㻤 ⚟ᓥ┴Ἀ 㻟㻣㻚㻣㻞 㻝㻠㻝㻚㻤㻞 㻠㻜㼗㼙 㻹㻢㻚㻣 㻞㻜㻝㻜㻛㻝㻝㻛㻟㻜㻌㻝㻞㻦㻞㻠 ᑠ➟ཎㅖᓥす᪉Ἀ 㻞㻤㻚㻟㻢 㻝㻟㻥㻚㻡㻥 㻠㻥㻠㼗㼙 㻹㻣㻚㻝 㻞㻜㻝㻝㻛㻟㻛㻥㻌㻝㻝㻦㻠㻢 ୕㝣Ἀ 㻟㻤㻚㻟 㻝㻠㻟㻚㻟 㻝㻜㼗㼙 㻹㻣㻚㻞 㻞㻜㻝㻝㻛㻟㻛㻝㻝㻌㻝㻠㻦㻠㻣 ᮾᆅ᪉ኴᖹὒἈᆅ㟈 㻟㻤 㻝㻠㻞㻚㻥 㻞㻠㼗㼙 㻹㻥㻚㻜 㻞㻜㻝㻝㻛㻟㻛㻝㻝㻌㻝㻡㻦㻜㻥 ୕㝣Ἀ 㻟㻥㻚㻤㻠 㻝㻠㻞㻚㻣㻤 㻟㻞㼗㼙 㻹㻣㻚㻠 㻞㻜㻝㻝㻛㻣㻛㻝㻜㻌㻥㻦㻡㻤 ୕㝣Ἀ 㻟㻤 㻝㻠㻟㻚㻡 㻝㻜㼗㼙 㻹㻣㻚㻝 㻞㻜㻝㻝㻛㻤㻛㻝㻥㻌㻝㻠㻦㻟㻣 ⚟ᓥ┴Ἀ 㻟㻣㻚㻢 㻝㻠㻝㻚㻥 㻞㻜㼗㼙 㻹㻢㻚㻤 పᒙ㒊 㧗ᒙ㒊 䖃 ほ Ⅼ Y᪉ྥ X᪉ྥ 㻳㻸 ⢓ᛶయไቨ 䠄4䡚17㝵䠅 䖃 䖃 䖃䠖ほ Ⅼ 䖃 䛆ሪᒇ䛇 䛆15㝵䛇 䛆B2㝵䛇 U.D.C 550.34.03
㉸㧗ᒙ㹐㹁ᘓ≀ࡢᆅ㟈ほ ⤖ᯝ
㸫ᮾᆅ᪉ኴᖹὒἈᆅ㟈ࡢほ グ㘓㸫
㕥ᮌ ᩄᚿ
㸨㇏ᔱ Ꮫ
㸨ᐑ㷂 ⏕
㸨㸨➉୰ ᏹ᫂
㸨㸨ᯇⱥ㑻
㸨㸨㸨せ ⣙㸸 2011 ᖺ 3 ᭶ 11 ᪥㸦㔠㸧14:46 㡭㸪୕㝣Ἀࢆ㟈※ࡍࡿᆅ㟈㸦㟈※῝ࡉ⣙ 24km㸪࣐ࢢࢽࢳ࣮ࣗࢻ 9.0㸧ࡀⓎ⏕ࡋ㸪ࡇࡢᆅ㟈 ࡼࡾ㸪ᐑᇛ┴㒊࡛ࡣ᭱㟈ᗘ 7 ࡀほ ࡉࢀࡓࠋࡲࡓ㸪ᮾᆅ᪉ࡢࡳ࡞ࡽࡎ㛵ᮾᆅ᪉ࡢᗈ࠸⠊ᅖࢃࡓࡾࡁ࡞ᦂࢀࡀⓎ⏕ࡋ㸪 ྛᆅ⏒࡞⿕ᐖࢆࡶࡓࡽࡋࡓࠋᮏሗ࡛ࡣ㸪ᅇⓎ⏕ࡋࡓᆅ㟈ࡘ࠸࡚㸪ᆅ㟈ほ ࢆ⾜ࡗ࡚࠸ࡿ㉸㧗ᒙ RC ᘓ≀㸦ᮾி㒔ෆ㸧 ࡢほ ⤖ᯝࢆሗ࿌ࡍࡿࠋᮏᘓ≀ࡣ㸪K-NET㸦㜵⅏⛉Ꮫᢏ⾡◊✲ᡤ ᙉ㟈ࢿࢵࢺ࣮࣡ࢡ㸧ࡢほ グ㘓ࡼࡿ㸪ᮏ㟈ࡢ㝿㟈ᗘ 5 ᙅ ⛬ᗘࡢᦂࢀࡀⓎ⏕ࡋࡓᆅᇦᘓ࡚ࡽࢀ࡚࠸ࡿࠋᘓ≀ࡢ᭱ୗ㝵࡛ほ ࡉࢀࡓຍ㏿ᗘἼᙧࢆࡳࡿᘓ≀ධຊࡉࢀࡓᆅ㟈ືࡢࡁࡉ ࡣ㸪࿌♧ᐃࡵࡽࢀࡿࠕ⛥Ⓨ⏕ࡍࡿᆅ㟈ື㸯㸧㸦ࣞ࣋ࣝ 1㸧ࠖ┦ᙜ࡛࠶ࡗࡓࠋࡲࡓ㸪ᮏᘓ≀ࡢᵓ㐀ⓗ࡞≉ᚩࡋ࡚㸪ᱱ㛫᪉ྥ㸦▷ ㎶᪉ྥ㸧⢓ᛶయไቨࡀタ⨨ࡉࢀ࡚࠾ࡾ㸪ไቨࡢᆅ㟈࠾ࡅࡿᣲືࢆ☜ㄆࡍࡿࡇࡀ࡛ࡁࡓࠋ 㺕㺎㺺㺎㺢㺼㸸 ᮾᆅ᪉ኴᖹὒἈᆅ㟈㸪ᆅ㟈ほ 㸪㉸㧗ᒙ RC ᘓ≀㸪ධຊᆅ㟈ື㸪ᆅ㟈ᛂ⟅㸪⢓ᛶయไቨ ┠ ḟ㸸 ࡣࡌࡵ ほ ⤖ᯝ ᴫせ ࡲࡵ ࡣࡌࡵ ᙜ♫ᕤࡢ㉸㧗ᒙ RC ᘓ≀㸦ᗑ⯒࣭ඹྠఫᏯ㸧ࢆᑐ ㇟㸪2007 ᖺ 12 ᭶ࡢ❹ᕤࡽ⥅⥆ࡋ࡚ᆅ㟈ほ ࢆ⾜ ࡗ࡚࠸ࡿࠋᮏሗ࡛ࡣ㸪ࡇࢀࡲ࡛ࡢほ グ㘓ࡢ୰࡛᭱ つᶍࡢᆅ㟈ື࡞ࡗࡓᮾᆅ᪉ኴᖹὒἈᆅ㟈㸦2011 ᖺ 3 ᭶ 11 ᪥ 14:46 㡭㸧ࡢほ ⤖ᯝࡘ࠸࡚ሗ࿌ࡍࡿࠋ ᴫせ ᘓ≀ᴫせ ᮏᘓ≀ࡣ㸪ᮾி㒔ෆᘓࡘ 2007 ᖺ❹ᕤࡢ㉸㧗ᒙᘓ≀ 㸦ᆅୖ 31 㝵㸪ᆅୗ 2 㝵㸪ሪᒇ 1 㝵㸧࡛࠶ࡿࠋᅗ 1 ᖹ 㠃ᅗ࠾ࡼࡧ᩿㠃ᅗࢆ♧ࡍࠋᇶ♏ࡣ┤᥋ᇶ♏㸦࣋ࢱᇶ♏㸧㸪 ୖ㒊ᵓ㐀ࡣ㕲㦵㐀⣧࣮࣓ࣛࣥᵓ㐀ࡢపᒙ㒊㕲➽ࢥࣥ ࢡ࣮ࣜࢺ㐀⣧࣮࣓ࣛࣥᵓ㐀ࡢ㧗ᒙ㒊ࡽᡂࡿࠋ㧗ᒙ㒊 ࡢᇶ‽㝵㠃✚ࡣ 880.55m2㸦᱆⾜ 35.9m㸪ᱱ㛫 22.0m㸧㸪 ᇶ‽㝵㧗ࡉࡣ 3.20m㸪㌺㧗ࡣ 104.50m ࡛࠶ࡿࠋࡲࡓ㸪 ▷㎶᪉ྥ㸦Y ᪉ྥ㸧4㹼17 㝵ࢥ࿘ࡾࡣ㸪⢓ᛶయไ ቨ㸦௨ୗ㸪VWD グࡍࠋ㸧ࡀタ⨨ࡉࢀ࡚࠸ࡿ㸦ᅗ 1㸧ࠋ ィ ᴫせ ィ ࡣ㸪ຍ㏿ᗘィࡼࡿィ 㸦X࣭Y࣭Z ࡢ 3 ᡂศ㸧 ࢆᆅୗ 2 㝵㸦B2F㸧㸪15 㝵㸦15F㸧㸪ሪᒇ 1 㝵㸦PHF㸧ࡢ ィ 3 ᡤ࡛⾜ࡗ࡚࠸ࡿࠋࡲࡓ㸪15F タ⨨ࡉࢀ࡚࠸ࡿ VWD ࡢኚ㸦Ỉᖹ࠾ࡼࡧᅇ㌿ᡂศࡢィ 㸧ࢆ࣮ࣞࢨ࣮ ኚィ࡛㸪⢓ᛶయࡢ ᗘィ ࢆ ᗘࢭࣥࢧ࣮࡛⾜ࡗ࡚ ࠸ࡿࠋィ ჾࡢタ⨨≧ἣࢆ┿ 1 ♧ࡍࠋィ ᮲௳ࡣ㸪 B2F ࠾ࡼࡧ PHF ࡢຍ㏿ᗘࢭࣥࢧ࣮࡛ࢺ࣮ࣜ࢞ࢆタᐃࡋ㸪 ࢺ࣮ࣜ࢞ࡀࡿ 200Hz ࡢࢧࣥࣉࣜࣥࢢ࡛㘓ࡀࢫ ࢱ࣮ࢺࡍࡿࠋ2012 ᖺ 3 ᭶⌧ᅾࡲ࡛ほ ࡉࢀࡓ࡞グ 㘓ࡣ⾲ 1 ♧ࡍ㏻ࡾ࡛࠶ࡿࠋ 㸦ᖹ㠃ᅗ㸧㸦᩿㠃ᅗ㸧 ᅗ ᖹ㠃࣭᩿㠃ᅗ࠾ࡼࡧほ Ⅼ ┿ ィ ჾタ⨨≧ἣ ⾲ ࡞ほ グ㘓㸦M6.5 ௨ୖࡢグ㘓㸧 ຍ㏿ᗘィ ࣮ࣞࢨ࣮ኚィ ᇶ┙ᢏ⾡㛤Ⓨ㒊 タィᮏ㒊 ᵓ㐀タィ㒊 ᮾிᨭᗑ ᘓ⠏㒊 23 * 基盤技術開発部 ** 設計本部 構造設計部 *** 東京支店 建築部 U.D.C 550.34.03
超高層ＲＣ建物の地震観測結果
−東北地方太平洋沖地震の観測記録−
鈴木 敏志
＊豊嶋 学
＊宮 嘉生
＊＊竹中 宏明
＊＊松井英二郎
＊＊＊ 23 東急建設技術研究所報No.38東急建設技術研究所報No.38 ほ ⤖ᯝ ほ グ㘓 ᮾᆅ᪉ኴᖹὒἈᆅ㟈ࡢ㝿ほ ࡋࡓຍ㏿ᗘἼᙧࢆ ᅗ 2 ࠾ࡼࡧᅗ 3 ♧ࡍࠋࡲࡓ㸪ᅗ୰ࡣຍ㏿ᗘࡢ᭱ ್ࡶేࡏ࡚♧ࡋ࡚࠸ࡿࠋほ ࡛ࡣ 480 ⛊ࡢグ㘓ࡀᚓࡽ ࢀ࡚࠸ࡿࡀ㸪ࡇࡇ࡛ࡣ 450 ⛊ࡲ࡛ࡢ⠊ᅖࢆ♧ࡍࠋࡲࡓ㸪 X ᪉ྥ㸦㛗㎶᪉ྥ㸧 Y ᪉ྥ㸦▷㎶᪉ྥ㸧ࡢຍ㏿ᗘἼ ᙧࡘ࠸࡚♧ࡋ㸪Z ᪉ྥࡘ࠸࡚ࡣឡࡍࡿࠋZ ᪉ྥࡢ ᭱ຍ㏿ᗘࡣ㸪B2F ࡛ 44.53cm/s2㸪15F ࡛ 69.80cm/s2㸪 PHF ࡛ 88.61cm/s2࡛࠶ࡗࡓࠋB2F ࡛ィ ࡉࢀࡓຍ㏿ᗘ Ἴᙧ㸦X࣭Y࣭Z ࡢ 3 ᡂศ㸧ࡽィ 㟈ᗘ㸰㸧ࢆィ⟬ࡍࡿ 4.4㸦㟈ᗘ㝵⣭ 4㸧࡞ࡗࡓࠋᮏᘓ≀ࡽ⣙ 0.5km ࡢ ㊥㞳࠶ࡿ K-NET ࡢほ グ㘓ࢆぢࡿ㸪᭱ຍ㏿ᗘࡣ X ᪉ྥ࡛ 178.68cm/s2㸪Y ᪉ྥ࡛ 188.36cm/s2㸪Z ᪉ྥ࡛ 75.45cm/s2࡞ࡾ㸪ィ 㟈ᗘࡣ 4.8㸦㟈ᗘ㝵⣭ 5 ᙅ㸧ࡀ グ㘓ࡉࢀ࡚࠸ࡿࠋᮏᘓ≀ࡢᇶ♏ᵓ㐀ࡣ㸪ᕤᏛⓗᇶ┙ ࡳ࡞ࡏࡿ⣽◁ᒙ㸦ୖ⥲ᒙ⩌㸧ࢆᨭᣢᆅ┙ࡋࡓ┤᥋ᇶ ♏ 㸦 ᇶ ♏ ᗏ GL-12.75m㸪A.P.+11.65m㸧ࡋ࡚࠾ࡾ㸪 B2F ࡢほ グ㘓ࡣ㸪ᘓ≀᭱ୗ㝵ࡢᗋࢫࣛࣈୖ࡛ࡢຍ㏿ ᗘグ㘓࡞ࡿࠋࡑࢀᑐࡋ࡚㸪K-NET ࡣᆅ⾲㠃㸦ᶆ㧗 34.00m㸧࡛ࡢほ グ㘓࡞ࡿࡀ㸪୧⪅ࢆຍ㏿ᗘࡢ᭱ ್࡛ẚ㍑ࡍࡿ㸪K-NET ࡛ほ ࡉࢀࡓ್ᑐࡋ࡚㸪ᮏ ᘓ≀ࡢ B2F ࡛ࡣ㸪Ỉᖹ᪉ྥ࡛⣙ 1/2㹼1/3 ಸ㸪㖄┤᪉ྥ ࡛⣙ 1/1.7 ಸࡢ್࡞ࡗࡓࠋ ධຊᆅ㟈ືࡢࣞ࣋ࣝ ࡇࡇ࡛ࡣ㸪B2F ࡛ほ ࡉࢀࡓグ㘓ࢆᘓ≀ࡢධຊᆅ 㟈ື⪃࠼㸪ᮾᆅ᪉ኴᖹὒἈᆅ㟈࠾ࡅࡿධຊᆅ㟈 ືࡢ≉ᛶධຊࣞ࣋ࣝࡘ࠸࡚⪃ᐹࡍࡿࠋ࡞࠾㸪ࡇࡇ ࡛ࡣỈᖹ 2 ᪉ྥ㸦X࣭Y ᪉ྥ㸧ࡢᆅ㟈ືࢆᑐ㇟ࡍࡿࠋ ࡣࡌࡵ㸪ᅗ 2 ࠾ࡼࡧᅗ 3 ♧ࡍຍ㏿ᗘἼᙧࢆᇶ ㏿ᗘἼᙧࢆ⟬ᐃࡋࡓࠋ㏿ᗘἼᙧࡣຍ㏿ᗘἼᙧ 0.1Hz ࡢࣁࣃࢫࣇࣝࢱ࣮㸦HPF㸧ࢆࡅ㸪ྎᙧ๎ࡼࡿ ✚ศࡽồࡵࡓࠋ᭱㏿ᗘࡣ㸪X ᪉ྥ࡛ 12.08cm/s㸪Y ᪉ྥ࡛ 17.86cm/s ࡞ࡗࡓࠋ㏿ᗘࡢ್࡛᭱ࡳࡿ㸪タ ィࢡࣛࢸࣜࡢࣞ࣋ࣝ 1 ┦ᙜࡍࡿ 25cm/s ࡼࡾࡶᑠ ࡉ࠸್ࢆ࡞ࡗࡓࠋḟ㸪ᅗ 4 ࡣ㸪B2F ࡢ X࣭Y ᪉ ྥࡑࢀࡒࢀࡢຍ㏿ᗘἼᙧࢆᇶ⟬ᐃࡋࡓఝ㏿ᗘᛂ⟅ ࢫ࣌ࢡࢺࣝ㸱㸧㸦h=5%㸧ࢆ♧ࡍࠋࡲࡓ㸪タィࡢ้Ṕ ᛂ⟅ゎᯒ⏝࠸ࡓධຊᆅ㟈ືࢆᇶ⟬ᐃࡋࡓఝ㏿ᗘ ᛂ⟅ࢫ࣌ࢡࢺࣝ㸦h=5%㸧ࡶేࡏ࡚♧ࡍࠋほ Ἴᙧࡼࡾ ồࡵࡓఝ㏿ᗘᛂ⟅ࢫ࣌ࢡࢺࣝࡣ㸪0.5 ⛊ࡼࡾ▷࿘ᮇഃ ࡛ࡣ㸪࿌♧Ἴࡢࣞ࣋ࣝ 1 ⛬ᗘࡢ್࡞ࡗ࡚࠸ࡿࠋ0.5 ⛊ ࡼࡾࡶ㛗࿘ᮇഃ࡛ࡣ㸪࿌♧Ἴࡢࣞ࣋ࣝ 1 ࡼࡾࡶࡁ࡞ ್࡞ࡾ㸪ELCENTRO㸪TAFT㸪HACHINOHE ࡢほ 3 Ἴࡢࣞ࣋ࣝ 1㸦ࡑࢀࡒࢀࡢᆅ㟈ືࢆ 25cm/s ᇶ‽ࡋ ࡓἼ㸧┦ᙜࡍࡿ್࡞ࡗ࡚࠸ࡿࡇࡀࢃࡿࠋ௨ୖ ࡢࡼ࠺㸪ᘓ≀ධຊࡉࢀࡓᆅ㟈ືࡣ㸪᭱㏿ᗘ࡛ぢ ࡿ㸪ࣞ࣋ࣝ 1 ࡼࡾࡶᑠࡉ࠸್࡛࠶ࡗࡓࡀ㸪ఝ㏿ᗘ ᛂ⟅ࢫ࣌ࢡࢺ࡛ࣝホ౯ࡍࡿ㸪ࣞ࣋ࣝ 1 ┦ᙜࡢධຊ࡛ ࠶ࡗࡓุ᩿࡛ࡁࡿࠋ ᘓ≀ࡢᛂ⟅ ࡇࡇ࡛ࡣ㸪ୖᒙ㝵ࡢほ グ㘓ࢆᇶᘓ≀ࡢᛂ⟅ᛶ≧ ࡘ࠸࡚⪃ᐹࢆ⾜࠺ࠋࡣࡌࡵ㸪᭱ຍ㏿ᗘࡘ࠸࡚ ぢࡿ㸪X ᪉ྥ࡛ࡣ㸪B2F ᑐࡋ࡚㸪15F ࡛ 1.87 ಸ㸪 PHF ࡛ 3.70 ಸቑᖜࡋ࡚࠸ࡿࠋྠᵝࡋ࡚ぢࡿ㸪Y ᪉ྥ࡛ࡣ㸪15F ࡛ 2.61 ಸ㸪PHF ࡛ 3.34 ಸ㸪Z ᪉ྥ࡛ࡣ㸪 15F ࡛ 1.57 ಸ㸪PHF ࡛ 1.99 ಸࡑࢀࡒࢀቑᖜࡋ࡚࠸ࡿࠋ ้ṔἼᙧ㸦ᅗ 2 ࠾ࡼࡧᅗ 3㸧࡛ぢࡿ㸪X࣭Y ࡢỈᖹ 2 ᪉ྥࡣ㸪B2F ࡢຍ㏿ᗘࡀࡁࡃ࡞ࡿᚑ࠸㸪ୖᒙ㝵ࡢ ຍ㏿ᗘࡶࡁࡃ࡞ࡗ࡚࠸ࡿࡀ㸪᭱ຍ㏿ᗘࡢⓎ⏕้ ࡣᕪࡀ࠶ࡾ㸪B2F ࡛᭱ຍ㏿ᗘࡀグ㘓ࡉࢀ࡚ࡽ 5㹼 10 ⛊⛬ᗘᚋୖᒙ㝵࡛ࡢ᭱ຍ㏿ᗘࡀグ㘓ࡉࢀ࡚࠸ࡿࠋ ࡞࠾㸪Z ᪉ྥࡘ࠸࡚ࡣ㸪ィ ࢆ⾜ࡗ࡚࠸ࡿ 3 ᡤ࡛㸪 ࡰྠ้᭱ຍ㏿ᗘࡀグ㘓ࡉࢀ࡚࠸ࡿࠋ ḟ㸪X ᪉ྥ࠾ࡼࡧ Y ᪉ྥࡢᛂ⟅ኚࡘ࠸࡚⪃ᐹ ࡍࡿࠋᅗ 5 ࠾ࡼࡧᅗ 6 ࡣ B2F ᑐࡍࡿ 15F ࠾ࡼࡧ B2F ᑐ ࡍ ࡿ PHF ࡢ ┦ ᑐ ኚ Ἴ ᙧ 㸦 ᅗ ୰ ࡣ 㸪 15F/B2F ࠾ࡼࡧ PHF/B2F グࡍࠋ㸧ࢆ♧ࡍࠋࡇࡇ࡛㸪┦ ᑐኚἼᙧࡣ㸪ᅗ 2 ࠾ࡼࡧᅗ 3 ♧ࡍຍ㏿ᗘἼᙧࢆ 2 ᅇ✚ศࡋ࡚ồࡵࡓࡶࡢ࡛࠶ࡿࠋලయⓗࡣ㸪ຍ㏿ᗘἼ ᙧ 0.1Hz ࡢ HPF ࢆࡅ㸪ྎᙧ๎ࡼࡿ✚ศࢆ 2 ᅇ⾜ ࠸⤯ᑐኚἼᙧࢆồࡵ㸪ྛィ 㝵ࡢ⤯ᑐኚἼᙧࡢ ᕪࡽ┦ᑐኚἼᙧࢆồࡵࡓࠋᅗ 5 ࠾ࡼࡧᅗ 6 ࢆぢࡿ 㸪 B2F ᑐ ࡍ ࡿ PHF ࡢ ┦ ᑐ ኚ ࡣ 㸪 X ᪉ ྥ ࡛ 35.50cm㸪Y ᪉ྥ࡛ 20.70cm ࡞ࡗࡓࠋᘓ≀ࡢ㧗ࡉࢆ⪃ ៖㸦ᆅୗ㝵ࡣᅛᐃ㸧ࡋ࡚㸪ᒙ㛫ኚᙧゅࢆồࡵࡿ㸪B2F ࡽ 15F ࡲ࡛ࡣ X ᪉ྥ࡛ 1/352㸪Y ᪉ྥ࡛ 1/489 ࡞ࡗ ࡓࠋྠᵝࡋ࡚㸪15F ᑐࡍࡿ PHF ࡢ┦ᑐኚἼᙧ 㸦PHF/15F㸧ࢆồࡵ㸪ᒙ㛫ኚᙧゅࢆ⟬ᐃࡍࡿ㸪X ᪉ྥ ࡛ 1/245㸪Y ᪉ྥ࡛ 1/374 ࡞ࡗࡓࠋࡲࡓ㸪ᘓ≀య 㸦B2F ࡽ PHF ࡲ࡛㸧࡛ぢࡿ㸪X ᪉ྥ࡛ 1/297㸪Y ᪉ ྥ࡛ 1/505 ࡞ࡗࡓࠋࡇࡢࡼ࠺㸪ᛂ⟅ኚ࡛ぢࡿ㛗 ㎶᪉ྥ㸦X ᪉ྥ㸧ࡢ᪉ࡀ㸪▷㎶᪉ྥ㸦Y ᪉ྥ㸧ࡼࡾࡶ ࡁ࠸ኚᙧ㔞࡞ࡗࡓࡇࡀࢃࡿࠋࡲࡓ㸪ࡇࡇ♧ ࡍᒙ㛫ኚᙧゅࡣ㸪ィ Ⅼ࡛࠶ࡿ B2F࣭15F࣭PHF 㛫ࡢᖹ ᆒ್࡛࠶ࡾ㸪ᐇ㝿ࡣ㸪ྛᒙẖ࡛ከᑡࡢࡤࡽࡘࡁࡀ࠶ ࡿࡶࡢ⪃࠼ࡽࢀࡿࠋ ๓㏙ࡋࡓᵝ㸪ᮾᆅ᪉ኴᖹὒἈᆅ㟈࠾ࡅࡿᮏᘓ ≀ࡢධຊᆅ㟈ືࡣ㸪ࣞ࣋ࣝ 1 ┦ᙜ࡛࠶ࡗࡓ⪃࠼ࡽ ࢀࡿ㸦ᅗ 4㸧ࠋᮏᘓ≀ࡢタィࡣ㸪ࣞ࣋ࣝ 1 ࡢᆅ㟈ື ᑐࡋ࡚㸪ࠕ㒊ᮦࡣᴫࡡᙎᛶⓗ࡞ᣲືࢆ♧ࡋ㸪ࡦࡧࢀ ࡣ⏕ࡌ࡚ࡶ㝆అࡣ⮳ࡽ࡞࠸ࠋࠖ࠸࠺┠ᶆᵓ㐀ᛶ⬟ࢆ タᐃࡋ㸪⪏㟈Ᏻᛶࡢࢡࣛࢸࣜࡋ࡚㸪ࠕୖ㒊ᵓ㐀 ࡢᒙࡢ᭱ᒙ㛫ኚᙧゅ 1/200 ௨ୗࠖࢆタᐃࡋ࡚࠸ࡿࠋࡇ ࢀᑐࡋ࡚㸪ᘓ≀ෆ࡛ほ ࡉࢀࡓຍ㏿ᗘグ㘓ࢆᇶᒙ 㛫ኚᙧゅࢆ⟬ᐃࡋࡓ⤖ᯝ㸪๓グࡋࡓ㏻ࡾ㸪ࣞ࣋ࣝ 1 ࡢ ࢡࣛࢸࣜ⛬ᗘ௨ୗࡢ್࡛࠶ࡿࡇࡀ☜ㄆ࡛ࡁࡓࠋ ௨ୖࡢࡼ࠺㸪ᘓ≀ࡢᛂ⟅್ࡽぢ࡚ࡶ㸪ᅇࡢᮾ ᆅ᪉ኴᖹὒἈᆅ㟈ࡣ㸪タィࢡࣛࢸࣜࡢࣞ࣋ࣝ 1 ⛬ ᗘ┦ᙜࡍࡿࡶࡢ࡛࠶ࡗࡓ⪃࠼ࡽࢀࡿࠋ 24
䠄 䝺䝧䝹1䠅 䠄 䝺䝧䝹2䠅
ほ グ㘓ࠉX᪉ྥ ほ グ㘓ࠉY᪉ྥ
TAFT EW 248gal TAFT EW 497gal
HACHINOHE NS 165gal HACHINOHE NS 330gal
࿌♧Ἴ L1 ࿌♧Ἴ L2
ELCENTRO NS 255gal ELCENTRO NS 511gal 0.1 1 10 100 1000 0.01 0.1 1 10 Period (sec) h=5% cm/sec -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 P H F (X) Ac c (c m/ se c 2) (sec) MAX䠖244.01 MIN䠖-296.97 -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F (X ) A cc (c m /s ec 2) (sec) MAX䠖109.71 MIN䠖-149.98 -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 B2 F (X) Ac c (c m/ se c 2) (sec) MAX䠖63.38 MIN䠖-80.23 -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 P H F (Y) Ac c (c m/ se c 2) (sec) MAX䠖192.85 MIN䠖-222.90 -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F (Y ) A cc (c m /s ec 2) (sec) MAX䠖127.41 MIN䠖-174.03 -300 -200 -100 0 100 200 300 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 B2 F (Y) Ac c (c m/ se c 2) (sec) MAX䠖62.47 MIN䠖-66.72 -40 -30 -20 -10 0 10 20 30 40 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 PH F/ B 2 F( X ) D is p ( cm ) (sec) MAX䠖35.50 MIN䠖-33.96 -40 -30 -20 -10 0 10 20 30 40 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F /B 2 F (X ) D is p (c m ) (sec) MAX䠖13.26 MIN䠖-14.08 -40 -30 -20 -10 0 10 20 30 40 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 PH F/ B 2 F( Y ) D is p ( cm ) (sec) MAX䠖20.02 MIN䠖-20.70 -40 -30 -20 -10 0 10 20 30 40 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F /B 2 F (Y ) D is p (c m ) (sec) MAX䠖9.17 MIN䠖-10.13 ᅗ ຍ㏿ᗘグ㘓㸦X ᪉ྥ㸧 ᅗ ఝ㏿ᗘᛂ⟅ࢫ࣌ࢡࢺࣝ ᅗ ຍ㏿ᗘグ㘓㸦Y ᪉ྥ㸧 ᅗ B2F ᑐࡍࡿ┦ᑐኚἼᙧ㸦X ᪉ྥ㸧 ᅗ B2F ᑐࡍࡿ┦ᑐኚἼᙧ㸦Y ᪉ྥ㸧 PHF 15F B2F PHF 15F B2F PHF 15F PHF 15F 東急建設技術研究所報No.38 25
東急建設技術研究所報No.38 -10 -8 -6 -4 -2 0 2 4 6 8 10 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F (V W D ) D is p (m m ) (sec) MAX䠖7.33 MIN䠖-7.20 23.8 23.9 24.0 24.1 24.2 㻜 㻡㻜 㻝㻜㻜 㻝㻡㻜 㻞㻜㻜 㻞㻡㻜 㻟㻜㻜 㻟㻡㻜 㻠㻜㻜 㻠㻡㻜 1 5 F (V W D ) T em p ( Υ ) (sec) START䠖23.84 END䠖24.08 ⢓ᛶయไቨࡢᣲື ┿ 2 ࡣᮏᘓ≀タ⨨ࡉࢀ࡚࠸ࡿ VWD㸦Viscous Wall Damper㸧ࡢ〇ရ᳨ᰝࡢ┿ࢆ♧ࡍࠋᅗ 7 ࡣ㸪 15F ࡛ほ ࡉࢀࡓ VWD ࡢỈᖹኚἼᙧ࠾ࡼࡧ VWD ෆ 㒊ࡢ⢓ᛶయࡢ ᗘኚࢆ♧ࡍࠋỈᖹኚࡢ್᭱ࡣ 7.33mm ࡛࠶ࡾ㸪ࡇࢀࢆ Y ᪉ྥ 15F ࡢᒙ㛫ኚᙧぢࡿ 㸪ᒙ㛫ኚᙧゅࡣ 1/436 ࡞ࡿ㸦㝵㧗 3200mm㸧ࠋࡇࢀ ࡣ㸪๓㏙ࡋࡓຍ㏿ᗘἼᙧࡢ 2 ᅇ✚ศࡽồࡵࡓᘓ≀ యࡢᒙ㛫ኚᙧゅ 1/505 ࡶᩚྜࡀྲྀࢀ࡚࠸ࡿ⪃࠼ࡽࢀ ࡿࠋࡲࡓ㸪VWD ࡢỈᖹኚࢆ 1 ᅇᚤศࡋ࡚ồࡵࡓἼᙧ ࢆ Y ᪉ྥ 15 㝵ࡢᒙ㛫㏿ᗘぢࡿ㸪᭱ᒙ㛫㏿ᗘࡣ㸪 2.39cm/s ࡞ࡗࡓࠋ⢓ᛶయࡢ ᗘࡣ㸪VWD ࡢືసᑐ ᛂࡋ࡚ᚎࠎୖ᪼ࡋ࡚࠾ࡾ㸪ᆅ㟈Ⓨ⏕๓ẚ㍑ࡍࡿ ⣙ 0.24 ᗘࡢ ᗘୖ᪼ࡀ☜ㄆࡉࢀࡓࠋ ࡲࡵ ᮏሗ࡛ࡣ㸪ᮾᆅ᪉ኴᖹὒἈᆅ㟈࠾ࡅࡿ㉸㧗ᒙ RC ᘓ≀ࡢᆅ㟈ほ グ㘓ࡘ࠸࡚ሗ࿌ࡋࡓࠋほ ⤖ᯝࡽ㸪 ධຊᆅ㟈ືࡢࡁࡉ㸪࠾ࡼࡧᘓ≀ࡢᛂ⟅ࡣ㸪タィࢡࣛ ࢸࣜࡢࣞ࣋ࣝ 1 ┦ᙜ࡛࠶ࡗࡓࡇࡀ☜ㄆࡉࢀࡓࠋ ᚋࡣ㸪ᆅ㟈Ⓨ⏕๓ᚋ࠾ࡅࡿᘓ≀ࡢື≉ᛶࡢホ౯ ࡸ㸪VWD ࡢຠᯝ㛵ࡍࡿᐃ㔞ⓗ࡞ホ౯࡞㸪ࡼࡾヲ⣽ ࡞᳨ウࢆ⾜࠺ணᐃ࡛࠶ࡿࠋ ┿ ⢓ᛶయไቨ㸦〇ရ᳨ᰝ㸧 㸦a㸧VWD ࡢỈᖹኚ 㸦b㸧⢓ᛶయࡢ ᗘ ᅗ ⢓ᛶయไቨ㸦15F タ⨨㸧ࡢᣲື ㅰ ㎡ ᮏሗ࡛ࡣ㸪㜵⅏⛉Ꮫᢏ⾡◊✲ᡤ㸦K-NET㸧ࡢほ グ㘓ࢆ⏝ࡋ࡚࠸ࡲࡍࠋࡇࡇグࡋ࡚ㅰពࢆ⾲ࡋࡲࡍࠋ ཧ⪃ᩥ⊩ 1㸧ᅜᅵ㏻┬࣭㸦⊂㸧ᘓ⠏◊✲ᡤ࣭᪥ᮏᘓ⠏⾜ᨻ㆟┘ಟ㸸2007 ᖺ∧ ᘓ⠏≀ࡢᵓ㐀㛵ಀᢏ⾡ᇶ‽ゎㄝ᭩㸪pp.450-454㸪ᅜᐁሗ㈍ ඹྠ⤌ྜ㸪2007 ᖺ 8 ᭶ 2㸧Ẽ㇟ᗇ┘ಟ㸸㟈ᗘࢆ▱ࡿ̺ᇶ♏▱㆑ࡑࡢά⏝̺㸪pp.46-55㸪㸦ᰴ㸧ࡂࡻ࠺ࡏ࠸㸪1996 ᖺ 9 ᭶ 3㸧ᰘ⏣᫂ᚨ㸸᭱᪂⪏㟈ᵓ㐀ゎᯒ㸪pp.31-41㸪᳃ฟ∧㸦ᰴ㸧㸪1981 ᖺ 6 ᭶
EARTHQUAKE OBSERVATION RESULTS OF A HIGH-RISE RC BUILDING
-THE 2011 OFF THE PACIFIC COAST OF TOHOKU
EARTHQUAKE-S.Suzuki, M.Toyoshima, Y.Miyazaki
H.Takenaka, and E.Matsui
This paper reports the earthquake observation results of a high-rise RC building in Tokyo that have been recorded on March 11, 2011 when the huge earthquake occurred beneath the Pacific side of the northeastern Japan from Tohoku to Kanto area. The earthquake has caused one of history’s worst damages in Japan. The seismic intensity of the Japan meteorology code around the building was 5-lower one. The input acceleration on the bottom floor was more than 80 cm/sec2, and input velocity was over 17 cm/sec. Response acceleration on the top floor was more than 3 times of the bottom floor acceleration. The maximum story drift angle was under or about 1/200 by the integral calculation of the acceleration records. It means that damage to the structure was less than design damage limit. It was confirmed that the input level to the building by the huge earthquake was level 1 in Japan seismic design. In addition, the dynamic time-histories of the relative displacement and temperature of the viscous wall damper set in the building were verified.
