3&㒊ᮦ5&㒊ᮦࡀΰᅾࡍ3&㦵⤌ࡢඖຊ≉ᛶ㛵ࡍ◊✲ ᪥ᮏᏛ Ꮫ㝔 Ꮫ⏕ဨ ۑጧ ᘓẎ ᪥ᮏᏛ Ꮫ㝔 ṇဨ ᕤᏛ༤ኈ ཎṇ⾜ ᪥ᮏᏛ Ꮫ㝔 ṇဨ ༤ኈᕤᏛ ⚟ ๛ Abstract㸸The analyses were performed on prestressed concrete frames subjected to reversed loading. The variables include 㸸 the ratio of the amount of prestressed concrete steel to that of total longitudinal reinforcement and the ratio of the number of yield hinges at the column to that of total hinges in the mechanism. On the basis of the results the effects of the variables on the hysteretic behavior of prestressed concrete frames were clarified. Key words㸸 Reversed loading , Prestressed concrete frames , Yield hinge , Hysteretic behavior ࡣ ࡌ PC 㒊ᮦ⥭ࡣᙇຊᬑ㏻㕲➽㔞ࡗᒚṔᛶ≧ࡀኚࡍࡓ㸪ࡢࡑඖຊ≉ᛶ ࡣRC 㒊ᮦẚ㍑ ࡍከᵝ࠶ࠋ ࡓPC 㦵⤌ ࡣRC ᰕ࠸⏝ࡀࡇࡀከࡃ㸪PC ᱱࡢタィ᮲௳ࡀ㛗ᮇⲴ㔜ᨭ㓄 ᆺ࡞ሙ ࡣRC ᰕࡌ⏕ࡀࢪ㸪ከᵝ࡞ࡀࢪΰᅾࡍࡇ࡞ࡗࡀࡓࡋࠋ㸪ࡢࡑᒚ Ṕᛶ≧ࡣ㒊ᮦࡢඖຊ≉ᛶࡅࡔࡃ࡞㝆అᶵᵓᨭ㓄ࡉࠋෆ⏣ࡣ㸪ᱱ PC㸪ᰕ RC ࡓࡋ3 ᒙᆺ㦵⤌ᑐࡋṇ㈇⧞㏉ࡋ࣓ࢺࢡゎᯒ⾜࠸㸪PC 㦵⤌ࡢඖຊ≉ᛶࢹᥦ ࡋ ࡓ1) ࠋᮏ◊✲ࡇࡣ࠸㸪6 ᒙࡢᆺ㦵⤌ᑐࡋᵝ࡞ゎᯒ⾜࠸㸪ᒚṔᛶ≧ཬࡍ㒊ᮦࡢඖ ຊ≉ᛶ㝆అᶵᵓࡢᙳ㡪ウࡍඹ㸪ᶵᵓࡅ࠾ᰕ㢌࠾ࡧᰕ⬮㝆అࡀࢪᙧᡂࡉ ᒙࡢ㐪➼ࡀ࠸౯⢓ᛶῶ⾶ᐃ㦵⤌ࡢኚᙧࢻཬࡍᙳ㡪ࡋ࠺ࡍࡢ࠶ ࠋ 㒊 ᮦ ࡢ ඖ ຊ ≉ ᛶ ࢹ ࡢᴫ せ 㒊ᮦࢹࢣࢫࡢࢺࢺࡣࢽᆺࡋ㸪ᒚṔࡣ⣳㗽ᆺࡢࢹϨ㸪6 Ꮠᆺࡢ ࢹϩᵓᡂࡍࠋලయⓗࡣ㸪ࡢࡇࢹϨࢹϩ࣓ ࢱĮ ⏝࠸ḟ⤖ࡍ ࡇ㸪RC 㒊ᮦ PC 㒊ᮦࡢከᵝ࡞ᒚṔᛶ≧⌧ࡍࡇࡀ⬟ࡗ࡞࠸ 1) ࡢࡇࠋࢹࡢヲ⣽ࡣ௨ୗ♧ࡍ࠾࠶ ࠋ ࢫ ࢣ ࢺ ࢣࢫࢺࡣᅗ 㸯 ♧ࡍ࠺ࡧࡦⅬC㝆అⅬY≉␗Ⅼࡍࢺࢽᆺ ࡍࠋᮇ๛ᛶ Ke ࡣᙎᛶ๛ᛶࡋ㸪ࡧࡦ࣓ ࢺMcr ࠾ࡧ᭤⤊ࡆᒁ࣓ ࢺMu ࡣ3& つ‽ ␎ࡢ⟬ᘧ 3) ⟬ฟࡍࠋ㝆అ࣓ ࢺMy ࡣ㸪 ᘧ ࠼ Mu ࡢ90%ࡢࡍ ࠋB ry py r ry p py u b T T N D N d T d T M V 2 ) ( 2 2 ăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăăă(1) ࡇࡇ㸪7 S\ 3& 㗰ᮦࡢ㝆అⲴ㔜 7 U\ 㕲➽ࡢ㝆అⲴ㔜 dp = PC 㗰ᮦࡢ᭷ຠ ࠸ࡏdr = 㕲➽ࡢ᭷ຠ ࠸ࡏıB = ࢥࢡࡢࢺᅽ⦰ᙉᗘ b = 㒊ᮦᖜ D = 㒊ᮦ ࠸ࡏ㝆అ㒊ᮦゅ Ry ࡣ ᘧ ࠋ e y y y K M R D / ······································· (2) ࡇࡇ㸪㝆అ๛ᛶపୗ⋡ Įy ᘧ ࠼ 4) ࠋY C F ᒚ Ṕ E ࢹ ϩ D ࢹ Kp R Kpp R M2 M Ke R M1 K ᅗ ࢹ ࡢᴫ せ Y K pp K C Y C 〔論文〕 勝抄潤署抄潤署循晶竣彰揮署積晋湘 瑞тх条淳晶唱準塾妾匝船僧季трсц消ср蕉稀