Author(s)
周, 波
Report No.(Doctoral
Degree)
博士(工学) 甲第466号
Issue Date
2015-03-25
Type
博士論文
Version
ETD
URL
http://hdl.handle.net/20.500.12099/51024
※この資料の著作権は、各資料の著者・学協会・出版社等に帰属します。㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ࠾ࡅࡿ
⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶ
Evaluation of fiber orientation in ultra high strength fiber
reinforced concrete and its effect on flexural properties
ᖹᡂ
27 ᖺ 3 ᭶
ᒱ㜧ᏛᏛ㝔
ᕤᏛ◊✲⛉༤ኈᚋᮇㄢ⛬
⏕⏘㛤Ⓨࢩࢫࢸ࣒ᕤᏛᑓᨷ
࿘ Ἴ
┠ḟ
➨1 ❶ ᗎㄽ ... 1 1.1 ◊✲ࡢ⫼ᬒ ... 1 1.1.1 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ ... 1 1.1.2 UFC ࡢ⧄⥔ࡢ㓄ྥ ... 1 1.2 ◊✲ࡢ┠ⓗ ... 3 1.3 ㄽᩥࡢᵓᡂ ... 3 ➨1 ❶ࡢཧ⪃ᩥ⊩ ... 4 ➨2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲ ... 5 2.1 ࡣࡌࡵ ... 5 2.2 UFC ࡢṔྐ ... 5 2.3 UFC ࡢ୍⯡≀ᛶ ... 7 2.3.1 ᅽ⦰ᙉᗘ ... 7 2.3.2 ᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶ ... 8 2.3.3 ᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ ... 8 2.3.4 ⦰≉ᛶ ... 9 ➨2 ❶ࡢཧ⪃ᩥ⊩ ... 10 ➨3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ ... 11 3.1 ࡣࡌࡵ ... 11 3.2 ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ ... 11 3.3 ⧄⥔ࡢ㓄ྥࡀຊᏛ≉ᛶཬࡰࡍᙳ㡪 ... 14 ➨3 ❶ཧ⪃ᩥ⊩ ... 19 ➨4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ... 21 4.1 ࡣࡌࡵ ... 21 4.2 ᐇ㦂ᴫせ ... 21 4.2.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ ... 21 4.2.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 ... 23 4.3 ᐇ㦂⤖ᯝ ... 26 4.3.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ ... 26 4.3.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 ... 27 4.4 ࡲࡵ ... 32 ➨4 ❶ࡢཧ⪃ᩥ⊩ ... 33 ➨5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ... 34 5.1 ࡣࡌࡵ ... 34 5.2 ᐇ㦂ᴫせ ... 34 5.2.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ... 34 5.2.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ... 35 5.2.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ... 355.3 ᐇ㦂⤖ᯝ ... 36 5.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ... 36 5.3.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ... 39 5.3.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ... 42 5.4 ࡲࡵ ... 43 ➨5 ❶ࡢཧ⪃ᩥ⊩ ... 44 ➨6 ❶ ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ... 45 6.1㸬ࡣࡌࡵ ... 45 6.2. ᐇ㦂ᴫせ ... 45 6.2.1 ⏝ᮦᩱ࠾ࡼࡧ UFC ࡢ㓄ྜ ... 45 6.2.2 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ ... 45 6.2.3 ౪ヨయ ... 47 6.2.4 ⏬ീゎᯒࡼࡾ⧄⥔ࡢ㓄ྥ ... 47 6.3. ᐇ㦂⤖ᯝ ... 49 6.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ ... 49 6.3.2 UFC ୰ࡢ⧄⥔ࡢ㓄ྥ ... 57 6.4. ࡲࡵ ... 67 ➨6 ❶ࡢཧ⪃ᩥ⊩ ... 68 ➨7 ❶ ᶆ‽᭤ࡆヨ㦂య࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ... 70 7.1. ࡣࡌࡵ ... 70 7.2. ᐇ㦂ᴫせ ... 70 7.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ... 70 7.2.2 ⦎ࡾΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ ... 70 7.2.3 ౪ヨయࡢస〇᪉ἲ ... 70 7.2.4 ຊᏛ≉ᛶࡢヨ㦂᪉ἲ ... 71 7.2.5 ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ ... 72 7.2.6 ⏬ീゎᯒࡼࡿ◚᩿㠃ࡢ⧄⥔㓄ྥࡢホ౯ ... 72 7.2.7 DIANA ゎᯒࢯࣇࢺࡼࡿ J ✚ศࡢ⤖ᯝ᳨ド ... 73 7.3. ᐇ㦂⤖ᯝ ... 75 7.3.1 ࣇࣞࢵࢩࣗᛶ≧࠾ࡼࡧᅽ⦰ᙉᗘ ... 75 7.3.2 ᭤ࡆヨ㦂⤖ᯝ ... 75 7.3.3 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ ... 77 7.3.4 ᭱ᘬᙇᛂຊ᭷ຠ⧄⥔ᮏᩘ Neffࡢ㛵ಀ ... 79 7.3.5 DIANA ゎᯒ⤖ᯝ ... 80 7.4. ࡲࡵ ... 81 ➨7 ❶ࡢཧ⪃ᩥ⊩ ... 82 ➨8 ❶ ࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ ... 83 8.1 ࡣࡌࡵ ... 83 8.2. ᐇ㦂ᴫせ ... 83 8.2.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ... 83
8.2.2 ⦎ΰࡐ࠾ࡼࡧ㣴⏕᪉ἲ ... 83 8.2.3 ᙧࣃࢿࣝ ... 83 8.2.4 㛗᪉ᙧࣃࢿࣝ ... 84 8.2.5 ᭤ࡆヨ㦂᪉ἲ ... 85 8.2.6 ◚᩿㠃ࡢ⏬ീゎᯒࡼࡿ⧄⥔㓄ྥࡢホ౯ ... 85 8.3. ᐇ㦂⤖ᯝ ... 86 8.3.1 ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ... 86 8.3.2 㛗᪉ᙧࣃࢿࣝࡽษฟࡋࡓ౪ヨయࡢ᭤ࡆᙉᗘ... 88 8.3.3 ౪ヨయ◚᩿㠃ࡢほᐹ⤖ᯝ ... 91 8.3.4 ◚᩿㠃ࡢ⏬ീゎᯒ⤖ᯝ ... 92 8.4 ࡲࡵ ... 93 ➨8 ❶ࡢཧ⪃ᩥ⊩ ... 94 ➨9 ❶ ⤖ㄽ ... 95 9.1 ࡣࡌࡵ ... 95 9.2 ྜᡂ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ࠾ࡼࡧ⧄⥔ࡢ㓄ྥࡢᙳ㡪 ... 95 9.3 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ... 95 9.4 UFC ࡢຊᏛ≉ᛶ⧄⥔ࡢ㓄ྥࡢᐃ㔞ⓗ࡞㛵ಀ ... 96 9.5 ᚋࡢᒎᮃ ... 96 9.5.1 タィ࣭ᕤ࠾ࡅࡿ⧄⥔ࡢ㓄ྥࡢ⪃៖ ... 96 9.5.2 ⧄⥔ࡢ㓄ྥࡢホ౯ᢏ⾡ ... 96 9.5.3 ⧄⥔ࡢ㓄ྥࡢண ... 97 9.5.4 ⧄⥔ࡢ㓄ྥຊᏛ≉ᛶ ... 97 9.5.6 ⧄⥔ࡢ㓄ྥࡢไᚚ ... 97 9.6 ࡲࡵ ... 97 ㅰ㎡ ... 98 Ⓨ⾲ㄽᩥ ... 99
➨
1 ❶ ᗎㄽ
1.1 ◊✲ࡢ⫼ᬒ
1.1.1 ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ
㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺ㸦Ultra high strength fiber reinforced concrete㸪௨ୗ UFC ࡍࡿ㸧 ࡣ㸪పỈ⤖ྜᮦẚࡢࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ㧗ᙉᗘࡢ▷⧄⥔ࢆΰධࡋࡓࡶࡢ࡛㸪పỈ⤖ྜẚ࡛࠶ࡾ ࡞ࡀࡽඃࢀࡓὶືᛶࢆᣢࡕ㸪ᅽ⦰ᙉᗘࡣ200N/mm2⛬ᗘ࡛㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺࡢ⣙5㹼10 ಸ㸪᭤ ࡆᙉᗘࡣ 30N/mm2⛬ᗘ࡛㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺࡢ⣙ 10㹼15 ಸࡢ㉸㧗ᙉᗘࡀᚓࡽࢀࡿࡢࡀ≉ᚩ࡛ ࠶ࡿࠋࡲࡓ㸪ࡦࡧࢀᑐࡋ࡚ࡶ⧄⥔ࡀᘬᙇᢠࡍࡿࡓࡵ㸪⬤ᛶⓗࡣ◚ቯࡏࡎ㸪㠌ᛶᐩࢇ ࡔ◚ቯᛶ≧ࢆ♧ࡍࠋ⌧⾜ࡢᅵᮌᏛࡢUFC 㛵ࡍࡿタィ࣭ᕤᣦ㔪࡛ࡣ㸪ᅽ⦰ᙉᗘࡢ≉ᛶ್ࡀ 150N/mm2௨ୖ㸪ࡦࡧࢀⓎ⏕ᙉᗘࡢ≉ᛶ್ࡀ4N/mm2௨ୖ㸪ᘬᙇᙉᗘࡢ≉ᛶ್ࡀ5N/mm2௨ୖ ࡢࡶࡢࡀᑐ㇟ࡉࢀ࡚࠸ࡿ㹙㹛ࠋ⌧ᅾ᪥ᮏᅜෆ࡛ᐇ⏝ࡉࢀ࡚࠸ࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜ ࢺࡋ࡚ࢲࢡࢱࣝ㸪ࢧࢡࢭ࣒࠾ࡼࡧࢫ࣒ࣜࢡ࣮ࣜࢺࡀ࠶ࡿ㹙㹛>@ࠋ 1.1.2 UFC ࡢ⧄⥔ࡢ㓄ྥ ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡀⓏሙࡋ࡚௨᮶᪥⮳ࡿࡲ࡛㸪࣐ࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢ㓄ྥࡢホ౯ ࡑࢀࡀຊᏛᣲືཬࡰࡍᙳ㡪㛵ࡋ࡚ࡣ㸪㔜せ࡞ㄢ㢟ㄆ㆑ࡉࢀ࡚࠸ࡿࡶࡢࡢ㸪࠸ࡲࡔゎỴࡉ ࢀ࡚࠸࡞࠸ࠋࡑࡢ᭱ࡢ⌮⏤ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ࠶ࡿ࠸ࡣࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢ㓄ྥࢆほ ᐹࡍࡿࡇ⮬యࡀ㞴ࡋ࠸࠺࠼㸪ࡉࡽ⌧≧࡛ࡣᡴ㎸ࡳ⧄⥔ࡢ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᏑᅾࡋ ࡞࠸ࡓࡵ࡛࠶ࡿ⪃࠼ࡽࢀࡿࠋ ᚑ᮶ࡽ㸪㒊ᮦཌࡀⷧ࠸ሙྜࡣ⧄⥔ࡀ2 ḟඖ㓄ྥ࡞ࡾ᫆࠸ࡇࡸ㸪ࡏࡁᯈຠᯝ㸦ᆺᯟ᥋ ࡍࡿ㠃࡛ࡣ㸪⧄⥔ࡣᆺᯟ㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ᫆࠸㸧ࡀᏑᅾࡍࡿࡇࡣࡼࡃ▱ࡽࢀ࡚࠸ࡿࠋࡋ ࡋ㸪ᚑ᮶ࡢ᭷ࢫࣛࣥࣉࡢ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢሙྜ㸪ᡴ㎸ࡳᮦᩱศ㞳ࡀ࡞ࡅࢀࡤ㸪ᇶ ᮏⓗᵓ㐀≀ෆ࡛ࡶࣛࣥࢲ࣒࡞㓄ྥ࡞ࡿࠋࡇࢁࡀ㸪UFC ࡸᡴ㎸ࡳᆺࡢࡦࡎࡳ◳ᆺࢭ࣓ࣥ ࢺ」ྜᮦᩱ㸦Strain hardening cementitious composites㸧࡛ࡣ㧗ὶືࡍࡿࡢࡀ୍⯡ⓗ࡛࠶ࡾ㸪ᡴ㎸ ࡳࢥࣥࢡ࣮ࣜࢺࢆᆺᯟෆ࡛ὶືࡉࡏࡿࡓࡵ㸪ࡑࡢὶࢀᛂࡌ࡚⧄⥔ࡀ㓄ྥࡍࡿࡇ࡞ࡿࠋ ࡇࢀࡲ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀヨ㦂⤖ᯝᙳ㡪ࡍࡿࡇ㛵ࡋ࡚ࡣ㸪ከࡃࡢሗ࿌ࡀ࠶ࡾ ᐇࡋ࡚ㄆࡵࡽࢀ࡚࠸ࡿ>@ࠋ୍ࡋ࡚S.T Kang ࡽ>@ࡣᅗ ♧ࡍࡼ࠺㸪UFC ࢆ 13201320100 mm ࡢࣃࢿࣝࡢ୰ᚰࡽὶࡋ㎸ࡳ㸪◳ᚋ 100100400 mm ࡢ᭤ࡆ౪ヨయ ࢆษฟࡋ㸪ษḞࡁᱱࡢ3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ࡗࡓࠋヨ㦂ࡢ⤖ᯝ㸪ᅗ ♧ࡍࡼ࠺㸪ࣃࢿࣝࡢ୰ ᚰࡽ㞳ࢀࡿ㸪᭤ࡆᙉᗘࡀᚎࠎ㧗ࡃ࡞ࡾ㸪ࣃࢿࣝࡢ୰ᚰ㒊᭱እ⦕࡛ࡣ㸪᭤ࡆᙉᗘ1㸸 2 ⛬ᗘࡢࡁ࡞ᕪࡀ⏕ࡌ࡚࠸ࡿࠋヨ㦂ᚋࡢ౪ヨయࡢ◚᩿㠃ࢆほᐹࡋࡓ⤖ᯝ㸪ᅗ ♧ࡍࡼ࠺ 㸪ᅗ୰ࡢⓑ࠸Ⅼࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡾ㸪ᙉᗘࡢ㧗࠸౪ヨయࡣ㸪ⓑ࠸Ⅼࡢ㠃✚ࡀᑠࡉ࠸㸪ࡍ࡞ ࢃࡕ⧄⥔ࡣ⧄⥔㍈ᑐࡋ࡚ᆶ┤ษ᩿ࡉࢀ࡚࠸ࡿࡢᑐࡋ࡚㸪ᙉᗘࡢప࠸౪ヨయ࡛ࡣ⧄⥔ࡀᑡ ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀࡁࡃ࡞ࡗ࡚࠾ࡾ㸪ษ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ㓄ྥࡋ࡚࠸ࡿ≧ἣࢆ♧ࡋ ࡚࠸ࡿࠋ ࡇࡢࡼ࠺࡞ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡢᙳ㡪ࢆ⪃៖ࡍࡿࡓࡵ㸪ࣇࣛࣥࢫࡢUFC ࡢᣦ㔪࡛࠶ࡿ Setra-AFGC>@࡛ࡣ㓄ྥಀᩘ K ࢆᑟධࡋ㸪๓ᐇ㦂࡛☜ㄆࢆ⾜ࢃ࡞࠸ሙྜࡣ㸪㏻ᖖࡢⲴ㔜ᑐࡍ
ࡿ↷ᰝ࡛ࡣK=1.25㸪ᒁᡤⲴ㔜ᑐࡍࡿ↷ᰝ࡛ࡣ K=1.75 ࡋ࡚㸪ᘬᙇᙉᗘࢆ㓄ྥಀᩘ K ࡛㝖ࡍ ࡿࡇ࡛タィ⏝್ࡋ࡚࠸ࡿࠋ୍᪉㸪ᅵᮌᏛࡢUFC ᣦ㔪>@࡛ࡣᮦᩱಀᩘ γc㸻1.3 ࡍࡿࡇ ࡛⧄⥔ࡢ㓄ྥࡘ࠸࡚┤᥋ⓗࡣ⪃៖ࡋ࡚࠸࡞࠸ࠋ ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡣᡴ㎸ࡳ᪉ἲࡸᵓ㐀≀ࡢᑍἲ࡞ࡼࡗ࡚ኚࡍࡿࡇࡶ▱ࡽࢀ࡚࠸ ࡿࠋࡋࡋ࡞ࡀࡽ㸪ࡇࢀࢆタィ࠾࠸࡚ྜ⌮ⓗ⪃៖ࡍࡿࡓࡵࡣ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄 ྥࢆホ౯ࡍࡿࡶ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᚲせ࡛࠶ࡿࡀ㸪⌧≧࡛ࡣࡇࢀࡽࡢᢏ⾡ࡣࡲࡔ☜❧ ࡉࢀ࡚࠸࡞࠸ࠋ 1320 1320
㻌
100㻌
ᅗ ࣃࢿࣝヨ㦂యࡢᡴ㎸ࡳ࠾ࡼࡧ౪ヨయࡢษฟࡋ>@ (a) ᡴ㎸ࡳ (b) ౪ヨయࡢษฟࡋ ᅗ ษฟࡋࡓ౪ヨయࡢⲴ㔜㛤ཱྀኚ᭤⥺>@ ᅗ ษฟࡋࡓ౪ヨయࡢ◚᩿㠃>@ (a) 2-8 (b) 2-10 (c) 2-12 (mm)1.2 ◊✲ࡢ┠ⓗ ᮏ◊✲࡛ࡣ㸪UFC ࢆ⢓ᛶࢆ᭷ࡍࡿ↓Ⰽ㏱᫂࡞㧗྾Ỉᛶ㧗ศᏊᮦᩱ࡛ࣔࢹࣝࡋ㸪⧄⥔ࢆྍど ࡍࡿࡇ࡛㸪౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡇࢆ┠ⓗࡋࡓࠋࡉࡽ㸪⧄⥔ࡢ㓄ྥࡀUFC ࡢຊᏛ≉ᛶཬࡰࡍᙳ㡪ࡶ᳨ウࡋࡓࠋ 1.3 ㄽᩥࡢᵓᡂ ㄽᩥࡣ㸪9 ❶ࡽᵓᡂࡉࢀ࡚࠾ࡾ㸪ྛ❶ࡢᴫせࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ ➨1 ❶ࠕᗎㄽ࡛ࠖࡣ㸪UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿㄢ㢟ືྥࡘ࠸࡚㏙㸪ᮏ◊✲ࡢ┠ⓗࢆ ♧ࡍࡶᮏㄽᩥࡢᵓᡂࢆ♧ࡋࡓࠋ
➨2 ❶ࠕUFC 㛵ࡍࡿ᪤ ࡢ◊✲࡛ࠖࡣ㸪UFC ࡢⓎᒎࡢ⤒⦋ࢆ⡆༢ㄝ᫂ࡍࡿࡶ UFC ࡢ୍⯡≀ᛶ㛵ࡍࡿ᪤ ࡢ◊✲ࢆ⤂ࡋࡓࠋ
➨3 ❶ࠕUFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲࡛ࠖࡣ㸪⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲ᡂᯝ ࢆ୰ᚰ㏙ࡓࠋ
➨4 ❶ࠕPVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪࡛ࠖࡣ㸪PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ ≉ᛶ࠾ࡼࡧࢥࣥࢡ࣮ࣜࢺࡢᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪ࡘ࠸࡚㏙ࡓࠋ ➨5 ❶ࠕUFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ࡛ࠖࡣ㸪⧄⥔ࡢ㓄ྥࡢ᪂ࡓ࡞ホ౯ᡭἲࡋ࡚ྍど ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆᥦࡋ㸪ᶆ‽᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋ ➨6 ❶ࠕྍどࣔࢹࣝࡼࡿ UFC ࡢ⧄⥔ࡢ㓄ྥࡢホ౯࡛ࠖࡣ㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ ⏝࠸㸪ヨ㦂యࡢᙧ≧ᑍἲ࣭ᡴ㎸ࡳ᪉ἲ࡞ࡀ⧄⥔ࡢ㓄ྥ࠼ࡿᙳ㡪ࢆ᳨ウࡋࡓࠋࡲࡓ㸪ᐇ㝿UFC ヨ㦂యࡶసᡂࡋ㸪ヨ㦂యࡢษ᩿㠃ࡢ⏬ീゎᯒࢆ⾜࠸㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿUFC ࡢ ⧄⥔ࡢ㓄ྥࡢホ౯ࡢ㐺⏝ᛶࢆ☜ㄆࡋࡓࠋ ➨7 ❶ࠕᶆ‽᭤ࡆ౪ヨయ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣ㸪 ⧄⥔ࡢศᩓ࣭㓄ྥࢥࣥࢡ࣮ࣜࢺࡢᘬᙇᙉᗘࡢ㛵ಀࢆᐃ㔞ⓗホ౯ࡍࡿࡇࢆ┠ⓗࡋ㸪ᶆ‽᭤ ࡆ౪ヨయࢆᑐ㇟ࡋ㸪ษḞࡁ῝ࡉࡀ␗࡞ࡿUFC ࡢ᭤ࡆ౪ヨయࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪J ✚ศἲ ࡼࡾ᩿㠃㧗ࡉࡈࡢᘬᙇ㌾᭤⥺ࢆ᥎ᐃࡋࡓࠋࡲࡓ㸪ࢹࢪࢱ࣐ࣝࢡࣟࢫࢥ࣮ࣉ࡛ᙳࡋࡓษ ᩿㠃ࡢ┿ࡢ⏬ീゎᯒࡼࡾ⧄⥔ᮏᩘ࠾ࡼࡧ㓄ྥゅᗘࢆィ⟬ࡋ㸪ᘬᙇ㌾᭤⥺ࡢ㛵ಀࢆ᳨ウ ࡋࡓࠋ ➨ 8 ❶ࠕࣃࢿࣝ㒊ᮦ࠾ࡅࡿ⧄⥔ࡢ㓄ྥ᭤ࡆ≉ᛶࡢᐃ㔞ⓗ࡞㛵ಀ㛵ࡍࡿ᳨ウ࡛ࠖࡣ㸪 φ1200×50mm ᙧࣃࢿࣝࡢ୰ᚰ UFC ࢆᡴ㎸ࡳ㸪◳ᚋࣃࢿࣝࡢ༙ᚄ᪉ྥᑐࡋ࡚ 0°㸪30°㸪 60°࠾ࡼࡧ 90°ࡢ᪉ྥ᭤ࡆ౪ヨయࢆษ᩿ࡋ㸪⧄⥔ࡢ㓄ྥᛶࢆ᭷ࡍࡿ౪ヨయࡢ㍕Ⲵヨ㦂ࢆ⾜ࡗࡓࠋ ࡲࡓࠊヨ㦂ᚋࠊ౪ヨయ◚᩿㠃ࡢ┤㏆࡛ษ᩿ࡋࠊษ᩿㠃ࡢ⏬ീゎᯒࡼࡾ⧄⥔ᮏᩘ㓄ྥゅᗘࢆ ィ⟬ࡋ㸪⧄⥔ࡢ㓄ྥࡀUFC ࡢ᭤ࡆᙉᗘࡢ⛬ᗘᙳ㡪ࡍࡿࢆ᳨ウࡋࡓࠋ ➨9 ❶ࠕ⤖ㄽ࡛ࠖࡣ㸪ᮏ◊✲ࡢᡂᯝࢆࡲࡵࡿࡶ㸪UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿᚋࡢ ㄢ㢟ࡘ࠸࡚㏙ࡓࠋ
➨1 ❶ࡢཧ⪃ᩥ⊩
[1] ᅵᮌᏛ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤ᪉㔪㸦㸧㸪2004
[2] ㈈ᅋἲேᅵᮌ◊✲ࢭࣥࢱ࣮㸸ᘓタᢏ⾡ᑂᰝド᫂ሗ࿌᭩ࠕࢲࢡࢱࣝࣇ࢛࣮࣒ࠖ㸪2002.3 [3] http://www.obayashi.co.jp/service_and_technology/related/tech080
[4] S.H Kwon, S.T Kang, B.Y Lee, J.K Kim: The variation of flow-dependent tensile behavior in radial flow dominant placing of Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC). Construction and Building Materials, Vol.33, pp.109-121, 2012
[5] P Stahli, R Custer, JGM van Mier: On flow properties, fiber distribution, fiber orientation and flexural behavior of FRC. Materials and Structures, Vol.41, pp.189-196, 2008
[6] W Pansuk, H Sato, Y Sato, R Shionaga: Tensile behaviors and fiber orientation of UHPC. Proceedings of second international symposium on Ultra High Performance Concrete, pp.161-168, 2008
[7] S.W Kim, S.T Kang, J.J Park, G.S Ryu: Effect of filling method on fiber orientation and dispersion and mechanical properties of UHPC. Proceedings of second international symposium on Ultra High Performance Concrete, pp.185-192, 2008
[8] J Walraven: On the way to design recommendation for UHPFRC, Ultra High Performance Concrete (UHPC), Proceedings of second international symposium on Ultra High Performance Concrete, pp.45-56, 2008
[9] ୍ᐑ㏻㸪㔝ಇኵ㸪㔝ཱྀᏕಇ㸪༡ᾈ㑻㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓᗋ∧ࡢᡴ ㎸ࡳ᪉ἲࡀᵓ㐀ᛶ⬟ཬࡰࡍᙳ㡪㛵ࡍࡿ◊✲㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.30㸪No.3㸪 pp.1453-1458㸪2008
[10] M. Mohammed, Y. Sato, D. Yamazaki and W. Pansuk: Influence of Fiber Orientation on Tensile Behavior of High Performance Fiber Reinforced Mortar, Proceedings of the Japan Concrete Institute, Vol.32, No.1, pp.245-250, 2010
➨
2 ❶ UFC 㛵ࡍࡿ᪤ ࡢ◊✲
2.1 ࡣࡌࡵ ࢥࣥࢡ࣮ࣜࢺࡢ㧗ᙉᗘ㸪㧗⪏ஂᛶࡣࠊᖖࢥࣥࢡ࣮ࣜࢺᢏ⾡⪅ࡢክ┠ᶆ࡛࠶ࡾࠊࢭ࣓ࣥࢺ ࢥࣥࢡ࣮ࣜࢺࡢṔྐ࠾࠸࡚ࠊࡑࢀࡒࢀࡢ௦ࡢᢏ⾡⪅ࠊ◊✲⪅ࡀດຊࢆ㔜ࡡ࡚ࡁࡓࠋᮏ❶࡛ࡣࠊ UFC ࡢⓎᒎࡢ⤒⦋ࢆ⡆༢ㄝ᫂ࡍࡿࡶ UFC ࡢ୍⯡≀ᛶ㛵ࡍࡿ᪤ ࡢ◊✲ࢆ⤂ࡍࡿࠋ 2.2 UFC ࡢṔྐ UFC ࡢᇶ♏࡞ࡗࡓࡢࡣࠊ1977 ᖺ Denmark ࠾࠸࡚㉸ᚤ⢏Ꮚ㧗ᛶ⬟ῶỈࢆ⤌ࡳྜࢃࡏ ࡿ ࡇ ࡼࡾ 㛤Ⓨ ࡉࢀࡓ DSP㸦Densified Systems containing homogeneously arranged ultrafine Particles㸧ᮦᩱ⪃࠼ࡽࢀ࡚࠸ࡿ>@ࠋᅗ DSP ࣮࣌ࢫࢺࡢᶍᘧᅗࢆ♧ࡍ>@ࠋDSP ࡣ㧗ᛶ ⬟ῶỈࡼࡿ⢏Ꮚศᩓຠᯝ࠾ࡼࡧ㉸ᚤ⢏Ꮚࡼࡿሸຠᯝࡢ᪉ࢆ⏝ࡋࡓᡭἲ࡛࠶ࡾࠊᴟ ࡵ࡚పỈ⤖ྜᮦẚ࡛࠶ࡗ࡚ࡶඃࢀࡓὶືᛶࢆᣢࡘ㧗ᙉᗘࢥࣥࢡ࣮ࣜࢺࢆ〇㐀ࡍࡿᢏ⾡࡛࠶ࡿࠋࡑࡢᚋࠊ1990 ᖺ௦๓༙ࣇࣛࣥࢫࡢ P Richard M Cheyrezy>@ࡼࡾ RPC㸦Reactive Powder Concrete㸧ࡢᴫᛕࡀᥦࡉࢀࠊࡉࡽୡ⏺ึࡢ RPC ࡀࣇࣛࣥࢫࡢ Bouygues ♫ࡢᐇ㦂ᐊ࡛ㄌ⏕ࡋ ࡓ>@ࠋRPC ࡣ᭱ᐦሸ⌮ㄽᇶ࡙࠸࡚㛤Ⓨࡉࢀࡓࢭ࣓ࣥࢺ⣔࣐ࢺࣜࢵࢡࢫ㔠ᒓ⧄⥔ࢆΰධࡋ ࡓ㉸㧗ᙉᗘ+㧗㠎ᛶࢥࣥࢡ࣮ࣜࢺ࡛࠶ࡿࠋ⾲>@ RPC ࡢ⏝ᮦᩱ࠾ࡼࡧ㓄ྜࢆ♧ࡍࠋᅗ >@RPC200 RPC800 ࡢ┦ᑐᐦᗘᅽ⦰ᙉᗘࡢ㛵ಀࢆ♧ࡍࠋ
ࡑࡋ࡚ࠊUFC ࡀ 1998 ᖺ᪥ᮏᢏ⾡ᑟධࡉࢀࠊ2004 ᖺᅵᮌᏛࡽࠕ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥ ࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤᣦ㔪㸦㸧ࠖ>@ࡀห⾜ࡉࢀࡓࠋ࡞࠾ࠊḢ⡿࡛ࡣ UHPFRC㸦Ultra-High Performance Fiber Reinforced Concrete㸧ࡤࢀ࡚࠸ࡿࡀ㸪ྠᵝ࡞ࡶࡢ⪃࠼࡚ࡼ࠸ࠋ
⾲ 53& ⏝ᮦᩱ࠾ࡼࡧ㓄ྜẚ>@
2.3 UFC ࡢ୍⯡≀ᛶ 2.3.1 ᅽ⦰ᙉᗘ UFC ࡣ㸪㏻ᖖ⇕㣴⏕ࡼࡾᙉᗘⓎぢࡀࡁࡃಁ㐍ࡉࢀ࡚࠸ࡿࡢ࡛ࠊ㣴⏕⤊ᚋࡢᙉᗘࡣᏳᐃ ࡋ࡚࠾ࡾࠊᮦ㱋ࡢ㐪࠸ࡀᙉᗘ࠼ࡿᙳ㡪ࡣᑠࡉ࠸>@ࠋᅗ ࡣ⇕㣴⏕ࡢ୍ࢆ♧ࡍࠋᅗ ࡣ㣴⏕⤊ᚋ࠾ࡅࡿ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ㛗ᮇᮦ㱋࡛ࡢᙉᗘヨ㦂⤖ᯝࢆ♧ࡍࠋᮦ 㱋ࡼࡽࡎᅽ⦰ᙉᗘࡢ್ࡣࡰ୍ᐃࡢ್࡛࠶ࡿࠋࡲࡓࠊ㏆ᖺᖖ ◳ᆺ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ ࣮ࣜࢺࡶ㛤Ⓨࡉࢀࠊ⇕㣴⏕UFC ྠ⛬ᗘࡢᅽ⦰ᙉᗘ࡛ࠊ⌧ሙᡴࡕࡶྍ⬟࡞ࡾࠊ᭦࡞ࡿ UFC ࡢ 㐺⏝ࡀᮇᚅ࡛ࡁࡿ>@ࠋ ᅗ ⇕㣴⏕ࡢ୍>@ ᅗ ⇕㣴⏕⤊ᚋ࠾ࡅࡿ 8)& ࡢ㛗ᮇᮦ㱋࡛ࡢᙉᗘヨ㦂⤖ᯝ>@
2.3.2 ᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶ ᣦ㔪㸦㸧>@࡛ࡣ㸪UFC ࡣࠊࡦࡧࢀⓎ⏕ᙉᗘࡢ≉ᛶ್ࡀ 4N/mm2௨ୖ㸪ᘬᙇᙉᗘࡢ≉ᛶ್ ࡀ5N/mm2௨ୖࡉࢀ࡚࠸ࡿࠋUFC ࡢᘬᙇᙉᗘ࠾ࡼࡧᘬᙇ㌾≉ᛶࡣ㸪ᮏ᮶┤᥋ᘬᙇヨ㦂ࡼࡾ ồࡵࡿࡢࡀᮃࡲࡋ࠸ࡀࠊࡑࢀ௨እࡶ᭤ࡆヨ㦂⤖ᯝࡢ㏫ゎᯒ>@ࡸJ ✚ศἲ>@࡞ࡀ࠶ࡿࠋ᭤ࡆ ヨ㦂᪉ἲࡘ࠸࡚ࡣࠊJIS A 1106ࠕࢥࣥࢡ࣮ࣜࢺࡢ᭤ࡆᙉᗘヨ㦂᪉ἲࠖࡶࡋࡃࡣࠊJSCE-G552ࠕ㗰 ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ᭤ࡆᙉᗘ࠾ࡼࡧࡲࡆࢱࣇࢿࢫヨ㦂᪉ἲࠖ࡞ࡀᣲࡆࡽࢀࡿࠋࡇࡢࠊ JCI-S-002-2003ࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜̺ኚ᭤⥺ヨ㦂ἲࠖࡸ RILEM ࡀ᥎ዡࡍࡿヨ㦂ἲ>@࡞ࡀ࠶ࡿࠋ ᅗ ࡣ㗰⧄⥔࠾ࡼࡧ࣑ࣛࢻ⧄⥔ࢆ⏝࠸ࡓUFC ࡢᘬᙇ㌾᭤⥺ࡢࣔࢹࣝࢆ♧ࡍ> @ࠋUFC ᣦ㔪㸦㸧♧ࡍࡼ࠺ࠊࡦࡧࢀⓎ⏕ᚋࠊࡦࡧࢀᖜࡢቑຍక࠸ࡑࡇ࡛ఏ㐩ࡉࢀࡿᘬᙇᛂຊ ࡣῶᑡࡋ࡚࠸ࡁࠊ᭱⤊ⓗ㛤ཱྀࡋࡓࡦࡧࢀࢆᙧᡂࡍࡿࠋᘬᙇ㌾᭤⥺ࡣࠊࡇࡢఏ㐩ᛂຊ ࡦࡧࢀᖜࡢ㛵ಀࢆ⾲ࡋࡓࡶࡢ࡛࠶ࡿࠋ 2.3.3 ᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ ᅗ ᰕUFC ౪ヨయࡢᅽ⦰ヨ㦂ィ ࡉࢀࡓᅽ⦰ᛂຊ̺ࡦࡎࡳ᭤⥺ࡢ୍ࢆ♧ࡍࠋࣖ ࣥࢢಀᩘࡣ42.4kN/mm2㸪ᅽ⦰ᙉᗘࡣ167.0 N/mm2 ࠋ ᅗ 8)& ࡢᘬᙇ㌾᭤⥺> @ ᅗ 8)& ࡢᘬᙇᛂຊ̺ࡦࡎࡳ᭤⥺> @
2.3.4 ⦰≉ᛶ UFC ࡢ⦰ࡣࠊ⮬ᕫ⦰ࡀ࡛࠶ࡾࠊᮦᩱࡢᛶ㉁ࡸ㣴⏕᮲௳࡞ࡢᵝࠎࡢせᅉࡼࡗ࡚ᙳ㡪 ࢆཷࡅࡿࠋᅗ ࡣUFC ࡢ⦰ࡦࡎࡳࡢ୍ࢆ♧ࡍࠋᶆ‽⇕㣴⏕୰㸦୍ḟ㣴⏕ 20Υ㸪48H㸹 ḟ㣴⏕90r㸪48H㸧ࡢ⦰㔞ࡣ 45010-6⛬ᗘ࡛࠶ࡾࠊ㣴⏕⤊ᚋࡢ⦰㔞ࡣ5010-6⛬ᗘ࡛࠶ ࡿࠋ୍᪉ࠊᶆ‽⇕㣴⏕ࢆ⾜ࢃ࡞࠸ሙྜࠊ⦰ࡦࡎࡳࡣ㏻ᖖࡢࢥࣥࢡ࣮ࣜࢺྠᵝࠊᮦ㱋ࡶ ኚࡋࠊ⦰㔞ࡣ55010-6⛬ᗘ࡛࠶ࡿࠋ ᅗ 8)& ࠾ࡅࡿᡴ㎸ࡳࡽࡢ⦰ࡦࡎࡳ>@
➨2 ❶ࡢཧ⪃ᩥ⊩
[1] H.H Bache: Densified Cement/Ultra-Fine Particle-Based materials. Second International Conference on Superplasticizers in Concrete, Canada, 1981
[2] P Richard, M Cheyrezy: Composition of Reactive Powder Concrete. Cement and Concrete Research, Vol.25, No.7, pp.1501-1511, 1995
[3] P.C Aitcin: Cements of yesterday and today Concrete of tomorrow. Cement and Concrete Research, Vol.30, No.9, pp.1349-1359, 1995 [4] ᅵᮌᏛ㸸㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢタィ࣭ᕤ᪉㔪㸦㸧㸪2004 [5] ⋢❳ᾈྖ㸪ྜྷ⏣ᾈ୍㑻㸪▼㛵୍㸪ᖹ⏣㝯⚈㸸ᖖ ◳ᆺ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ ㅖ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᖺḟㄽᩥ㞟㸪Vol.34㸪No.1㸪pp.208-213㸪2012 [6] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-002-2003
[7] V.C Li, R.J Ward: A Novel Testing Technique for Post-peak Tensile Behavior of Cementitious Material㸪Fracture Toughness and Fracture Energy, pp.183-195, Balkema, 1989
[8] Determination of the Fracture Energy of Mortar and Concrete by Means of Three-point Bend Tests on Notched Beams, Materials and Structures, Vol.18, No.4, pp.285-290, 1985
[9] N.K Thy㸪࿘Ἴ㸪᳃ៅஓ㸪ෆ⏣⿱ᕷ㸸࣑ࣛࢻ⧄⥔ࢆ⏝࠸ࡓ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜ ࢺࡢຊᏛ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.33㸪No.1㸪pp.233-238㸪2011
➨
3 ❶ UFC ࡢ⧄⥔ࡢ㓄ྥ㛵ࡍࡿ᪤ ࡢ◊✲
3.1 ࡣࡌࡵ ࡇࢀࡲ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀヨ㦂⤖ᯝᙳ㡪ࡍࡿࡇ㛵ࡋ࡚ࡣ㸪ከࡃࡢሗ࿌ࡀ࠶ࡾ ᐇࡋ࡚ㄆࡵࡽࢀ࡚࠸ࡿࠋࡲࡓ㸪ᵓ㐀≀୰ࡢ⧄⥔ࡢ㓄ྥࡣ㸪ᡴ㎸ࡳ᪉ἲࡸᵓ㐀≀ࡢᑍἲࡼ ࡗ࡚ኚࡍࡿࡇࡶ▱ࡽࢀ࡚࠸ࡿࠋࡋࡋ࡞ࡀࡽ㸪ࡇࢀࢆタィ࠾࠸࡚ྜ⌮ⓗ⪃៖ࡍࡿࡓࡵ ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥࢆホ౯ࡍࡿࡶ㓄ྥࢆไᚚࡍࡿᢏ⾡ࡀᚲせ࡛࠶ࡿࡀ㸪 ⌧≧࡛ࡣࡇࢀࡽࡢᢏ⾡ࡣࡲࡔ☜❧ࡉࢀ࡚࠸࡞࠸ࠋࡉࡽ㸪ᵓ㐀≀యࡢᣲືᑐࡋ࡚ᒁᡤⓗ࡞ ⧄⥔ࡢ㓄ྥࡀࡢࡼ࠺࡞ᙳ㡪ࢆ࠼ࡿࡢࡶᚲࡎࡋࡶ᫂☜ࡣ࡞ࡗ࡚࠸࡞࠸ࠋ⧄⥔ࡢ㓄ྥࡢၥ 㢟ࡣᚋࡢ◊✲㛤Ⓨࡀᙉࡃᮃࡲࢀࡿㄢ㢟࡛࠶ࡿࠋ ᮏ❶࡛ࡣࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ㸪⧄⥔ࡢ㓄ྥᙳ㡪ࡍࡿせᅉ࠾ࡼࡧ⧄⥔ࡢ㓄ྥ ຊᏛ≉ᛶࡢ㛵ಀ㛵ࡍࡿ᪤ ࡢ◊✲ᡂᯝࢆᩚ⌮ࡋࡓࠋ 3.2 ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢほᐹᡭἲ ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ㓄ྥ≧ែࢆほᐹࡍࡿࡣ㸪౪ヨయࡢษ᩿㠃ࢆほᐹࡍࡿࡢࡀ⡆౽࡛࠶ ࡾ୍⯡ⓗ࡛࠶ࡿࠋࡲࡓࠊ⏬ീゎᯒᢏ⾡ࢆ⤌ࡳྜࢃࡏࡿࡇ࡛㓄ྥ≧ែࡢᩘ್ࡀ᳨ウࡉࢀ࡚࠸ࡿࠋ J.L Chermant>@㸪A Amin>@㸪S.T Kang>@ࡣ౪ヨయࡢษ᩿㠃ࢆ㧗⏬ീᩘࢹࢪࢱ࣓࡛ࣝ࢝ࣛᙳࡋ㸪 ImageJ>@࡞ࡢ⏬ീゎᯒᢏ⾡ࢆ⏝࠸㸪⧄⥔ࡢ㓄ྥ≧ែࢆ᳨ウࡋࡓࠋᅗ̺ ,PDJH- ࢆ⏝࠸ࡓ ษ᩿㠃ࡢ⏬ീゎᯒᡭ㡰ࢆ♧ࡍ>@ࠋᅗ̺ D ࡣ౪ヨయษ᩿㠃ࢆࢹࢪࢱ࣓࡛ࣝ࢝ࣛᙳࡋࡓ⏬ീ ࡛࠶ࡿࠋᅗ୰㸪ⓑ࠸㠃✚ࡀ㗰⧄⥔ࡢษ᩿㠃࡛࠶ࡿࠋᅗ̺ E ࡣษ᩿㠃ࡢ⏬ീࢆ2 ್ࡋࡓࡶࡢ ࡛࠶ࡿࠋࡇࢀࡼࡾ㗰⧄⥔ࡢษ᩿㠃ࢆㄆ㆑ࡋࠊㄆ㆑ࡋࡓ㗰⧄⥔ࡢษ᩿㠃ࢆᴃ࡛㏆ఝࡍࡿࡇ࡛㸪 ⧄⥔ࡢ㓄ྥゅᗘࢆồࡿࠋ ᅗ̺ ♧ࡍࡼ࠺㸪⧄⥔ࡢ㓄ྥゅᗘθ ࡣ㸪ᘧ̺ ࡼࡾィ⟬࡛ࡁࡿࠋ⧄⥔ࡀษ᩿㠃ᑐ ࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿሙྜ 90r࡞ࡾ㸪⧄⥔ࡀษ᩿㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ࡚࠸ࡿሙྜ 0r ࡞ࡿࠋ࡞࠾ࠊࡇࡢ᪉ἲࡀ㐺⏝࡛ࡁࡿࡢࡣ㸪㗰⧄⥔ࡢ᩿㠃ᙧ≧ࡀ┿࡛࠶ࡿࡇࡀ᮲௳࡛࠶ࡿࠋ P Stahli>@㸪ᑠࡽ>@ࡣX⥺CT-Scanࡼࡾ౪ヨయࢆษ᩿ࡏࡎ㸪⧄⥔ࡢ㓄ྥࢆ᳨ウࡋ࡚࠸ࡿࠋ ᩿ᒙ┿ࡢ୍ࢆᅗ̺♧ࡍࠋ㯮࠸⥺≧ࡢ㒊ศࡀ▷⧄⥔࡛࠶ࡿࠋ3ḟඖ⏬ീゎᯒࢯࣇࢺ࢙࢘ ࢆ⏝࠸㸪᩿ᒙ⏬ീࡽ⧄⥔1 ᮏ1 ᮏࢆ᳨ฟࡋ㸪3 ḟඖᗙᶆ್ࢆྲྀᚓࡍࡿࡇࡀྍ⬟࡛࠶ࡿࠋᅗ ̺ࡣ㸪ᚓࡽࢀࡓᗙᶆ್ࢆ⏝࠸࡚㸪⧄⥔ࢆᥥ⏬ࡋࡓ⤖ᯝࢆ♧ࡍࠋࡉࡽ㸪ᅗ̺♧ࡍࡼ ࠺⧄⥔ࡢ3ḟඖᗙᶆࡽࠊ≉ᐃࡢ᩿㠃ࢆ㊬ࡄ⧄⥔ࡢ㓄ྥゅᗘࡶ⟬ฟ࡛ࡁࡿࠋ Ʌ ൌ ିଵ ୧ ᘧ̺ ⧄⥔ࡢ㓄ྥゅᗘ>@(a) ษ᩿㠃ࡢ⏬ീࣔࣀࢡࣟ (b) ⏬ീ 2 ್ (c) ⧄⥔ษ᩿㠃ࡢㄆ㆑ (d) ⧄⥔ษ᩿㠃ࡢᴃ㏆ఝ ᅗ̺ ษ᩿㠃ࡢ⏬ീゎᯒᡭ㡰>@ df θ dfi ษ᩿㠃
㻌
df ⧄⥔㻌
ᅗ̺ ษ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ>@ᅗ̺ &7 ᩿ᒙ┿>@ ᅗ̺ &7 ⏬ീࡽᢳฟࡉࢀࡓ⧄⥔㓄ྥ>@
⧄⥔ ᅗ̺ 㓄ྥゅᗘࢆ⟬ฟࡋࡓ㠃>@ ᢳ H1 㼂㻝㻌
㗰⧄⥔ࡢሙྜࡣX⥺㏱㐣ἲࢆ⏝࠸ࡿ᪉ἲࡀྂࡃࡽ㐺⏝ࡉࢀ࡚࠾ࡾ㸪ࡇࡢሙྜࡣCT-Scan ྠᵝ౪ヨయࢆษ᩿ࡍࡿࡇ࡞ࡃෆ㒊ࢆ┤᥋ほᐹࡍࡿࡇࡀ࡛ࡁࡿࠋ㤿ሙࡽ>@ࡣX⥺㏱㐣ᙳ ࡼࡿ⏬ീࡽࢥࣥࢡ࣮ࣜࢺ୰ࡢ㗰⧄⥔ࡢ㓄ྥ≧ែࢆホ౯ࡍࡿ᪉ἲࡘ࠸᳨࡚ウࡋ࡚࠸ࡿࠋࡋ
ࡋ࡞ࡀࡽ㸪X⥺㏱㐣ἲࡣ≉ู࡞タഛᶵჾ᭷㈨᱁⪅ࡀᚲせ࡛࠶ࡾᚲࡎࡋࡶ⡆౽࡞᪉ἲࡣゝ࠼
࡞࠸ࠋ
S.J. Barnett>@ࡣ Electrical Resistivity ࢆ⏝ࡋ㸪⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋM Faifer > @ࡣ Magnetic Approach ࢆ⏝࠸࡚⧄⥔ࡢ㓄ྥࢆホ౯ࡋࡓࠋ 3.3 ⧄⥔ࡢ㓄ྥࡀຊᏛ≉ᛶཬࡰࡍᙳ㡪 ▷⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ≉ᚩࡣࡦࡧࢀⓎ⏕ᚋࡢ⧄⥔ࡼࡿᯫᶫຠᯝ࠶ࡾ㸪ࡇࡢᯫᶫຠ ᯝᑐࡋ࡚⧄⥔ࡢ㓄ྥ࣭ศᩓࡀࡁࡃᙳ㡪ࡍࡿࠋ᪤ ࡢ◊✲ࡼࢀࡤ㸪ࢥࣥࢡ࣮ࣜࢺ୰ࡢ⧄⥔ࡢ 㓄ྥ࣭ศᩓᙳ㡪ࡍࡿせᅉࡋ࡚㸪⦎ΰࡐᚋࡢࣇࣞࢵࢩࣗᛶ≧㸪ᡴ㎸ࡳ᪉ἲ㸪౪ヨయࡢᙧ≧ᑍἲ㸪 ᆺᯟࡏࡁᯈຠᯝ࡞ࡀᣲࡆࡽࢀ㸪≉⦎ΰࡐᚋࡢࣇࣞࢵࢩࣗᛶ≧ᆺᯟࡏࡁᯈຠᯝࡀ⧄⥔ࡢ㓄 ྥ࣭ศᩓࡁࡃᙳ㡪ࡍࡿࡉࢀ࡚࠸ࡿࠋ M.C Torrijos>@ࡣᅗ ♧ࡍࡼ࠺㸪ᡴ㎸ࡳ᪉ἲࢆኚ࠼࡚౪ヨయࢆస〇ࡋ㸪౪ヨయ୰ࡢ⧄ ⥔ࡢ㓄ྥࢆホ౯ࡋ㸪౪ヨయࡢຊᏛ≉ᛶࡢᙳ㡪ࢆ᳨ウࡋࡓࠋヨ㦂࡛ࡣ㸪150×150×600mm ࡢ᭤ࡆ ౪ヨయࢆᑐ㇟ࡋ㸪౪ヨయࢆ❧࡚࡚㍈᪉ྥࡽᡴ㎸ࡴ᪉ἲ㸦ᅗ୰V ࡛♧ࡋࡓࡶࡢ㸧㸪౪ヨయࡢ୰ ኸࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡴ᪉ἲ㸦ᅗ୰C ࡛♧ࡋࡓࡶࡢ㸧㸪ࢥࣥࢡ࣮ࣜࢺࢆࣃࣉ୰୍࡛ᐃࡢ㊥ 㞳ࢆὶືࡉࡏࡓᚋ㸪ᆺᯟࡢ➃㒊ࡽᡴ㎸ࡴ᪉ἲ㸦ᅗ୰T ࡛♧ࡋࡓࡶࡢ㸧ࡢィ 3 ✀㢮ࡢᡴ㎸ࡳ᪉ ἲࢆ⏝࠸ࡓࠋ ࢥࣥࢡ࣮ࣜࢺ◳ᚋ㸪ᅗ̺ ♧ࡍࡼ࠺3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪᭤ࡆᙉᗘࢆồࡵࡓࠋࡲࡓ㸪 ⧄⥔ࡢ㓄ྥ࠾ࡼࡧᮏᩘࢆほᐹࡍࡿࡓࡵ㸪ᅗ̺ ♧ࡍࡼ࠺౪ヨయࢆษ᩿ࡋ㸪ྛษ᩿㠃ࡢ⧄⥔ ࡢ㓄ྥ࠾ࡼࡧᐦᗘࢆィ ࡋࡓࠋ ᅗ̺ ᭤ࡆヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋ౪ヨయT ࡀ୍␒㧗࠸᭤ࡆᙉᗘࢆᚓࡽࢀ㸪ࡲࡓ㸪౪ヨయࢆࡓ ࡚࡚㍈᪉ྥࡽᡴ㎸ࢇࡔ౪ヨయ V ࡀ᭤ࡆᙉᗘࡀ୍␒పࡃ࡞ࡗࡓࠋᡴ㎸ࡳ᪉ἲࡼࡾ㸪౪ヨయࡢ ᭤ࡆᙉᗘࡀࡁࡃኚࡍࡿࡇࢆ♧ࡉࢀࡓࠋ
A Abrishambaf ࡽ>@㸪R Zerbino ࡽ>@㸪S.J Barnett ࡽ>@㸪S.H Kwon ࡽ>@㸪P Pujadas ࡽ>@ ࡣࣃࢿࣝ≧ࡢヨ㦂యࢆᑐ㇟ࡋ࡚㸪ᡴ㎸ࡳ᪉ἲ㸪౪ヨయࡢษฟࡋ᪉ἲ࡞ኚࡉࡏ㸪⧄⥔ࡢ㓄ྥ ࡢ㐪࠸ࡼࡾຊᏛ≉ᛶࡀኚࡋࡓ⤖ᯝࢆሗ࿌ࡋ࡚࠸ࡿࠋ A Abrishambaf ࡽ>@ࡣ㸪ᅗ̺ ♧ࡍࡼ࠺㸪㛗ࡉ 1600mm㸪ᖜ 1000mm㸪㧗ࡉ 60mm ࡢࣃ ࢿࣝࡢ୰ᚰࡽࢥࣥࢡ࣮ࣜࢺࢆᡴ㎸ࡳ㸪ࢥࣥࢡ࣮ࣜࢺ◳ᚋ㸪ࢥ౪ヨయࢆษฟࡋ࡚㸪ࢥࣥࢡࣜ ࣮ࢺࡢὶື᪉ྥᑐࡋ࡚0r 90rษḞࡁࢆᑟධࡋ㸪ᅗ̺ ♧ࡍࡼ࠺ヨ㦂࠾ࡼࡧ ୍㍈ᘬᙇヨ㦂ࢆᐇࡋ㸪౪ヨయࡢᘬᙇᙉᗘࢆィ ࡋࡓࠋヨ㦂ᚋ㸪◚᩿㠃ࡢ⧄⥔㓄ྥ≧ἣࢆほᐹࡋ㸪 ຊᏛ≉ᛶヨ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋ
ᅗ̺ ౪ヨయࡢᡴ㎸ࡳ᪉ἲ>@
ᅗ̺ ౪ヨయࡢ᭤ࡆᙉᗘ>@
ᅗ̺ Ⅼ᭤ࡆヨ㦂>@
ᅗ̺ ヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋᅗ̺ ୍㍈ᘬᙇヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋヨ㦂ࡣ౪ヨ యࡢᘬᙇᙉᗘࢆ㐣ホ౯ࡋ࡚࠸ࡿࡀ㸪࠸ࡎࢀࡢヨ㦂᪉ἲ࠾࠸࡚ࡶ㸪ࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥ ᑐࡋ࡚ᖹ⾜ษḞࡁࢆᑟධࡋࡓヨ㦂యࡣ㸪㧗࠸ᘬᙇᙉᗘࢆᚓࡽࢀࡓࠋ⾲̺ ྛ౪ヨయࡢᖹᆒ ್ࢆ♧ࡍࠋࡲࡓ㸪ᅗ̺ ⧄⥔ࡢ㓄ྥゅᗘηθ࠾ࡼࡧ᭷ຠ⧄⥔ᮏᩘNeffᘬᙇ㌾᭤⥺ࡢ㛵ಀ ࢆ♧ࡍࠋࡇࡇ࡛㸪᭷ຠ⧄⥔ᮏᩘNeffࡣ౪ヨయ◚᩿㠃࠾࠸࡚⧄⥔ࡢ⥲ᮏᩘᐃ⩏ࡉࢀ࡚࠸ࡿࠋྠ ᅗࡼࡾ㸪౪ヨయࡢᘬᙇᙉᗘࡣ⧄⥔ࡢ㓄ྥゅᗘ࠾ࡼࡧ◚᩿㠃࠾࠸࡚᭷ຠ⧄⥔ᮏᩘቑຍࡶ࡞ ࠸ࡁࡃ࡞ࡗࡓࠋ ᅗ̺ ヨ㦂యࡢᑍἲࢥᢤࡁ౪ヨయࡢ⨨>@
(a)ヨ㦂౪ヨయ୍㍈ᘬᙇヨ㦂౪ヨయࡢᑍἲ (b) ヨ㦂୍㍈ᘬᙇヨ㦂⨨ ᅗ̺㻟 ヨ㦂୍㍈ᘬᙇヨ㦂⨨㼇㻞㼉㻌
ᅗ̺ ヨ㦂࠾ࡅࡿ Ȫ̽Z ᭤⥺ D ȟ r㸪 E ȟ r>@
ᅗ̺ ୍㍈ᘬᙇヨ㦂࠾ࡅࡿ Ȫ̽Z ᭤⥺ D ȟ r㸪 E ȟ r>@
(c) ηθӊ0.68㸪Neffӊ ᅗ̺ ୍㍈ᘬᙇヨ㦂⤖ᯝ>@
(b) 0.68‹ηθ‹0.80㸪0.41‹Neff ‹1.20 (a) ηθ≥0.80㸪Neff≥1.20
➨3 ❶ཧ⪃ᩥ⊩
[1] J.L Chermant, L Chermant, M Coster, A.S Dequiedt, C.Redon㸸Some field of applications of automatic image analysis in civil engineering, Cement and Concrete Composite, Vol.23, pp.157-169, 2001
[2] A Abrishambaf, J.A.O Barros, V.M.C.F Cunha: Relation between fibre distribution and post-cracking behaviour in steel fibre reinforced self-compacting concrete panels, Cement and Concrete Research, Vol.(51), pp.57-66, 2013
[3] S.T Kang, J.K Kim: The relation between fiber orientation an tensile behavior in an Ultra High Performance Fiber Reinforced Cementitious Composites(UHPFRCC), Cement and Concrete Research, Vol.41, pp.1001-1014, 2011
[4] E.S Lappa, C.R Braam, J.C Walraven: Static and Fatigue Bending Tests of Ultra High Performance Concrete, Proceedings of the International Symposium on Ultra High Performance Concrete, pp. 449-458, Kassel, 2004.
[5] P Stahli, R Custer, J.G.M.V Mier: On flow properties, fibre distribution, fibre orientation and flexural behaviour of FRC, Materials and Structures, Vol.41, No.1, pp.189-196, 2008
[6] ᑠᏘ㸪㧗ᶫᆂ୍㸪ᰩ⏣Ᏺᮁ㸪ᅜᯞ⛱㸸▷⧄⥔⿵ᙉࢭ࣓ࣥࢺ⣔ᮦᩱࡢ⧄⥔㓄ྥࡀຊᏛᛶ⬟ ཬࡰࡍᙳ㡪㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.35㸪No.1㸪pp.295-230㸪2013
[7] 㤿ሙᘯ㸪ఀ⸨ဴ⏨㸪ྜྷṊຬ㸪୰ᕝᾈ㸸X ⥺㏱㐣ᙳࡼࡿ㗰⧄⥔ࡢ㓄ྥಀᩘࡢホ౯᪉ ἲ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪Vol.27㸪No.1㸪pp.259-264㸪2005
[8] S.J Barnett, J.F Lataste, T Parry, S.G Millard, M.N Soutsos: Assessment of fiber orientation in ultra high performance fiber reinforced concrete and its effect on flexural strength, Materials and Structures, Vol. 43, No. 7, pp. 1009-1023, 2010
[9] M Faifer, R Ottoboni, S Toscani, L Ferrara: Nondestructive testing of steel-fiber-reinforced concrete using a magnetic approach, IEEE Transactions on Instrumentation and Measurement, Vol.60, pp.1709-1717, 2011
[10] M.C Torrijos, B Barragan, R Zerbino: Placing conditions, mesostructural characteristics and post-cracking response of fibre reinforced self-compacting concrete. Construction and Building Materials, Vol.24, pp.1078-85, 2010
[11] R Zerbino, J.M Tobes, M.E Bossio, G Giaccio: On the orientation of fibres in structural members fabricated with self compacting fibre reinforced concrete. Cement and Concrete Composite, Vol.34, pp.191-200, 2012
[12] S.J Barnett, J.F Lataste, T Parry, S.G Millard, M.N Soutsos: Assessment of fiber orientation in ultra high performance fiber reinforced concrete and its effect on flexural strength, Materials and Structures, Vol. 43, No. 7, pp. 1009-1023, 2010
[13] S.H Kwon, S.T Kang, B.Y Lee, J.K Kim: The variation of flow-dependent tensile behavior in radial flow dominant placing of Ultra High Performance Fiber Reinforced Cementitious Composites (UHPFRCC), Construction and Building Materials, Vol. 33, pp. 109 – 121, 2012
[14] P Pujadas, A Blanco, S Cavalaro, A.D.L Fuente, A Aguado: Fibre distribution in macro-plastic fibre reinforced concrete slab-panels. Construction and Building Materials, Vol.64, pp.496-503, 2014
➨
4 ❶ PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ⧄⥔ࡢ㓄ྥࡢᙳ㡪
4.1 ࡣࡌࡵ ᮏ❶࡛ࡣࠊ㉸㧗ᙉᗘ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢ㐺⏝⠊ᅖࡢᣑࢥࢫࢺࡢపῶࢆ┠ᣦࡋ㸪ᚑ᮶ࡢ 㗰⧄⥔ࡢ௦ࢃࡾ㸪ᕷ㈍ࡢྛ✀࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ(PVA)⧄⥔ࢆ⏝࠸ࡓሙྜࡢຊᏛ≉ᛶࡘ࠸࡚ ᳨ウࡋࡓࠋ ࡉࡽ㸪ᮏ❶࡛㑅ᐃࡋࡓPVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࢆ 2 ✀㢮ࡢᡴ㎸ࡳ᪉ἲࢆ⏝࠸࡚㸪㛗ࡉ 2600mm㸪 ᖜ450mm㸪ཌࡉ 100mm ࡢࣃࢿࣝ㒊ᮦᡴ㎸ࡳ㸪◳ᚋ㸪100×100×400mm ࡢ᭤ࡆ౪ヨయࢆษࡾ ฟࡋ㸪ษࡾḞࡁᱱࡢ3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪ᡴ㎸ࡳ᪉ἲ࠾ࡼࡧ౪ヨయࡢษࡾฟࡋࡢ᪉ྥ㸪⨨ࡀ᭤ ࡆᣲືཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ 4.2 ᐇ㦂ᴫせ 4.2.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ 4.2.1.1 ⏝ᮦᩱ࠾ࡼࡧ㓄ྜ ⾲̺ ⏝ᮦᩱࢆ♧ࡍࠋ⾲̺ ࡣ⏝ࡋࡓ࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ⧄⥔ࡢᴫせࢆ♧ࡍࠋ ⏝ࡋࡓ⧄⥔ࢆ┿̺ ♧ࡍࠋUFC ࡢ㓄ྜࢆ⾲̺ ♧ࡍࠋ㓄ྜϨࡣྛ✀⧄⥔ࡢ≉ᛶࢆẚ㍑ ࡍࡿࡇࢆ┠ⓗࡋ࡚㸪ࣇࣞࢵࢩࣗࡢὶືᛶࢆ☜ಖࡍࡿࡓࡵ㸪W/C ࢆࡁࡃࡋ࡚⧄⥔ࡢΰ ධ㔞ࢆᑡ࡞ࡃࡋࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϩࡣ㸪㓄ྜϨࡢ⤖ᯝࡽΰධ㔞ࢆቑຍ࡛ࡁࡿ⧄⥔ࡘ࠸࡚㸪 W/C ࢆపῶࡋ࡚ΰධ㔞ࢆከࡃࡋࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϪࡣ㸪㓄ྜϩࡢ⤖ᯝࡽ 2 ✀㢮ࡢ⧄⥔ࢆΰ ྜࡋ࡚⏝࠸ࡓࡶࡢ࡛࠶ࡿࠋ㓄ྜϫ㸪Ϭࡣ⧄⥔FE ࢩࣜ㸫ࢬ㐺⏝ࡋࡓࡶࡢ࡛࠶ࡿࠋ ⾲̺ ⏝ᮦᩱ ✀㢮 ྡ⛠ グྕ ≀ᛶ ⦎ΰࡐỈ ୖỈ㐨Ỉ W ࢭ࣓ࣥࢺ ࢩࣜ࢝ࣇࣗ㸫࣒ࢭ࣓ࣥࢺ C ᐦᗘ㸸3.08g /m 3㸪ẚ⾲㠃✚0.6 m2/g㸪 ࢩࣜ࢝ࣇࣗ㸫࣒⨨⋡20% ⣽㦵ᮦ ⌛◁ S 6 ྕ⌛◁㸪ᐦᗘ 2.6g/cm3 ᚤ⢊ᮎᮦᩱ ⌛▼⢊ᮎ P ᐦᗘ2.6g/cm3㸪ẚ⾲㠃✚0.812m2/g ΰ 㧗ᛶ⬟ῶỈ Ad ࣏ࣜ࢝ࣝ࣎ࣥ㓟࢚㸫ࢸࣝ⣔ྜ≀ ⧄⥔ ࣏ࣜࣅࢽࣝࣝࢥ㸫ࣝ⧄⥔ F ᕷ㈍ࡢ⧄⥔㸦ᵝࡣ⾲̺ ཧ↷㸧 ┿̺ 39$ ⧄⥔4.2.1.2 ⦎ࡾΰࡐ᪉ἲ࠾ࡼࡧ౪ヨయࡢస〇࣭㣴⏕ ⦎ࡾΰࡐࡣ㸪㓄ྜϨ㸪ϩ㸪Ϫࡣᐜ㔞10L ࡢ࣍ࣂ㸫ࢺ࣑࢟ࢧࢆ⏝࠸ࡓࠋ㓄ྜϫ㸪Ϭࡣ 120L ࡢ 2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧࢆ⏝ࡋࡓࠋ࡞࠾㸪࠸ࡎࢀࡢ㓄ྜࡶ㸪⧄⥔௨እࡢᮦᩱࢆᢞධᚋ㸪ᡤせࡢὶືᛶ ࡀᚓࡽࢀࡿࡲ࡛⦎ࡾΰࡐࢆ⾜࠸㸪ࡑࡢᚋ⧄⥔ࢆᢞධࡋ㸪⦎ࡾΰࡐࢆ⾜ࡗࡓࠋ ౪ヨయࡢᑍἲࡣ㸪㓄ྜϨࡘ࠸࡚ࡣφ5×10cm ࡢᅽ⦰౪ヨయ 4×4×16cm ࡢ᭤ࡆ౪ヨయ࡛㸪㓄 ྜϩ㸪Ϫ㸪ϫ㸪Ϭࡘ࠸࡚ࡣ㸪φ10×20cm ࡢᅽ⦰౪ヨయ 10×10×40cm ࡢ᭤ࡆ౪ヨయࢆ⏝࠸ࡓࠋ ౪ヨయࡢ㣴⏕ࡣ㸪ᡴ㎸ࡳᚋ㸪୍ḟ㣴⏕ࡋ࡚20Υ㸫48 㛫ࡢᑒ⥸㣴⏕ࢆ⾜࠸㸪ࡑࡢᚋᡴᆺࡋ㸪 ࡉࡽḟ㣴⏕ࡋ࡚90Υ㸫48 㛫(᪼㝆 15Υ/hr)ࡢẼ㣴⏕ࢆ⾜ࡗࡓࠋ 4.2.1.3 ຊᏛ≉ᛶࡢヨ㦂᪉ἲ ヨ㦂ࡣ㸪ࣔࣝࢱࣝࣇࣟ㸫㸦0 ᡴ㸧ヨ㦂㸪ᅽ⦰ᙉᗘヨ㦂࠾ࡼࡧ᭤ࡆᙉᗘヨ㦂ࡋࡓࠋ᭤ࡆᙉᗘヨ 㦂ࡣᅗ̺ ♧ࡍࡼ࠺࡞ษḞࡁᱱࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪Ⲵ㔜㸫ࡦࡧࢀ㛤ཱྀኚࢆィ ࡋ ࡓࠋヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡࣜ㸫ࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲࠖ㸦JCI㸫S㸫 002㸫2003㸧>@‽ࡌ࡚⾜ࡗࡓࠋ ⾲̺ 39$ ⧄⥔ ⧄⥔ ྡ⛠ ᐦᗘ (g/cm3) ┤ᚄ (μm) 㛗ࡉ (mm) ᘬᙇᙉᗘ (MPa) FA 1.3 40 8 1400 FB 40 12 1560 FC 100 12 1200 FD 200 18 975 FEձ 660 30 900 FEղ 20 FEճ 15 ⾲̺ 8)& ࡢ㓄ྜ 㓄ྜ W/C (%) (%) Air ༢㔞(kg/ m3) W C S P Ad Ad/C (%) (%) F ⧄⥔ࡢ✀㢮 Ϩ 22 5 231 1124 609 221 17 1.5 1.8 FA㸪FB㸪FC㸪FD㸪FE ϩ 19 196 1152 624 227 23 2.0 3.0 FC㸪FD㸪FEձ Ϫ 18 175 1166 632 229 35 3.0 3.0 FCE1 (FC1.0% FEձ2.0%) FCE2 (FC1.5% FEձ1.5%) FCE3 (FC2.0% FEձ1.0%) ϫ 17 165 1181 640 232 3.0 FEձ㸪FEղ㸪FEճ Ϭ 164 1168 633 230 4.0 FEղ㸪FEճ
4.2.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 4.2.2.1 PVA ⧄⥔ UFC ࡢ㓄ྜ ྛ✀PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶࡢᐇ㦂⤖ᯝࡣḟ⠇࡛㏙ࡿࡀ㸪ᐇ㦂ࡢ⤖ᯝ㸪๓⠇ࡢ㓄ྜϪ ࢆ⏝࠸࡚㸪⧄⥔FC2.0% FEձ1.0%ࢆΰධࡋࡓሙྜ㸪ὶືᛶࢆ☜ಖࡋࡓ࠺࠼࡛㸪㧗࠸ᅽ⦰ᙉᗘ ᭤ࡆᙉᗘࡀᚓࡽࢀࡓࠋࡑࡇ࡛㸪ᮏᐇ㦂࡛ࡣ㓄ྜϪࢆ⏝࠸ࡓࠋ 4.2.2.2 ヨ㦂యࡢస〇 ᮏᐇ㦂࡛⏝࠸ࡓヨ㦂యࡢ✀㢮ࢆ⾲̺ ♧ࡍࠋ౪ヨయA ࡣ 100×100×400mm ࡢᶆ‽᭤ࡆ౪ヨ య࡛࠶ࡾ㸪ࣃࢿࣝヨ㦂యB㸫1㸪B㸫2㸪C㸫1㸪C㸫2 ࡣᅗ̺ ♧ࡍࡼ࠺㸪㛗ࡉ 2600mm㸪ᖜ 450mm㸪ཌࡉ 100mm ࡛ࡍ࡚ྠ୍ᑍἲ࡛࠶ࡿࠋ ᡴ㎸ࡳ᪉ἲࡣ㸪ᮏᐇ㦂ࡢࣃ࣓ࣛ㸫ࢱࡋ࡚㸪ᅗ̺ D ♧ࡍࡼ࠺㸪ᆺᯟࢆ5.7rഴࡅ࡚㸪 ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀ㸦࣍ࢵࣃ㸫㸧ࢆᆺᯟࡢ∦➃ᅛᐃࡋࢥࣥࢡࣜ㸫ࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ᡴ ࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪ὶືᡴ㎸ࡳࡪ㸧ᅗ̺ E ♧ࡍࡼ࠺㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀ㸦࣍ ࢵࣃ㸫㸧ࢆヨ㦂య㍈᪉ྥ㐃⥆ⓗ⛣ືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪⛣ືᡴ㎸ࡳࡪ㸧ࡢ2 ✀ 㢮ࡋࡓࠋ ⾲̺4.4 ヨ㦂య〇సᵝ ࣂࢵࢳNO. ヨ㦂య✀ู ᡴ㎸ࡳ᪉ἲ ᩘ㔞㸦య㸧 1.2.3.4 A ὶື ᡴ㎸ࡳ 20 㸦ྛࣂࢵࢳ5㸧 1 B㸫1 ὶື ᡴ㎸ࡳ 1 2 B㸫2 1 3 C㸫1 ⛣ື ᡴ㎸ࡳ 1 4 C㸫2 1 ᅗ̺ ษḞࡁᱱࡢ Ⅼ᭤ࡆヨ㦂
㻡㻚㻣㼐㼑 㻌 㻌 ᅗ̺ ᡴ㎸ࡳ᪉ἲ (b) ⛣ືᡴ㎸ࡳ᪉ἲ (a) ὶືᡴ㎸ࡳ᪉ἲ
㻌
100 450㻌
2600㻌
(mm) ᅗ̺ ࣃࢿࣝヨ㦂యࡢᑍἲ ࣍ࢵࣃ࣮⨨ࢆᅛᐃࡋ࡚ᡴ㎸ࡳ ࣍ࢵࣃ࣮ࢆ⛣ືࡉࡏ࡚ᡴ㎸ࡳࠊ㻞 ⛬ᗘ࡛ᡴ㎸ࡳ㻌
4.2.2.3 㣴⏕᪉ἲ ᅇࡢᐇ㦂࡛ࡣ㸪ᡴタ⤊ᚋ㸪୍ḟ㣴⏕ࡋ࡚㸪ᆺᯟෆ࡛50ΥࡢẼ㣴⏕ࢆ 12 㛫⾜࠸㸪ࡑ ࡢᚋ⬺ᆺࡋ㸪ࡉࡽḟ㣴⏕ࡋ࡚㸪50ΥࡢẼ㣴⏕ࢆ 78 㛫⾜ࡗࡓࠋ࡞࠾㸪Ẽ㣴⏕ࡢ᪼ ㏿ᗘࡣ㸪15Υ/hr ࡋࡓࠋ 4.2.2.4 ヨ㦂యࡢษ᩿᪉ἲ 㣴⏕⤊ᚋ㸪ᅗ̺ ♧ࡍࡼ࠺㸪ࢥࣥࢡࣜ㸫ࢺ࢝ࢵࢱ࣮ࢆ⏝࠸࡚ヨ㦂యB㸫1㸪B㸫2㸪C㸫 1㸪C㸫2 ࢆษ᩿ࡋࡓࠋヨ㦂య B㸫1 C㸫1 ࡣࣃࢿࣝࡢ㛗㎶᪉ྥᆶ┤ษ᩿ࡋ㸪ヨ㦂య B㸫2 C 㸫2 ࡣ㛗㎶᪉ྥᖹ⾜ษ᩿ࡋࡓࠋ౪ヨయ A ࡣࡍ࡚ഃ㠃 30㹫㹫῝ࡉࡢษࡾḞࡁࢆຍᕤࡋࡓࠋ ヨ㦂యB㸫1 C㸫1 ࡽษࡾฟࡋࡓ౪ヨయࡣᡴ㎸ࡳ㠃ᆺᯟᗏ㠃࡛ 30mm ῝ࡉࡢษࡾḞ ࡁࢆຍᕤࡋࡓࠋ ヨ㦂యB㸫2 C㸫2 ࡽษࡾฟࡋࡓ౪ヨయࡣࡍ࡚ᆺᯟᗏ㠃 30mm ῝ࡉࡢษࡾḞࡁࢆຍᕤ ࡋࡓࠋ 4.2.2.5 ヨ㦂᪉ἲ ࣇࣟ㸫ヨ㦂࠾ࡼࡧࢥࣥࢡࣜ㸫ࢺ◳ᚋࡢᅽ⦰ᙉᗘヨ㦂ษḞࡁᱱࡢ3 Ⅼ᭤ࡆᙉᗘヨ㦂ࢆᐇ ࡋࡓࠋ 㻠㻝㻡㼙㼙 㻞㻡㻝㻡㼙㼙 㻢㻡㼙㼙 㻞㻢㻜㻜㼙㼙 㻠㻜㻜㼙㼙
ษ᩿᪉ྥ䚷䐟
ษ᩿᪉ྥ䚷䐠
㻝㻜㻜㼙㼙 ᡴタ㠃䠄ୖ㠃䠅 ᆺᯟ㠃䠄ୗ㠃䠅 㻟㻜㼙㼙 㻡㼙㼙௨ୗ ᡴタ㠃䠄ୖ㠃䠅 ᆺᯟ㠃䠄ୗ㠃䠅 㻟㻜㼙㼙 㻡㼙㼙௨ୗ B-2, C-2㻌
B-1, C-1㻌
ᅗ̺ ヨ㦂యࡢษ᩿᪉ἲ࠾ࡼࡧ౪ヨయࡢษḞࡁసᴗ 1 2 24 1 4 5 244.3 ᐇ㦂⤖ᯝ 4.3.1 PVA ⧄⥔ࢆ⏝࠸ࡓ UFC ࡢ≉ᛶ 4.3.1.1 ࣇࣞࢵࢩࣗᛶ≧ ᅗ ࣇࣟ㸫ヨ㦂ࡢ⤖ᯝࢆ♧ࡍࠋ㓄ྜϨࡢሙྜ㸪⣽࠸⧄⥔FA FB ࡛ࡣࣇࣟ㸫ࡀ 160mm ࡞ࡾ㸪ࡇࢀ௨ୖ⧄⥔ࢆΰධࡍࡿࡇࡀᅔ㞴࡞ࡗࡓࠋ୍᪉㸪ኴ࠸⧄⥔FC㸪FD㸪FEձ࡛ࡣࣇࣟ 㸫ࡀ300mm ௨ୖ࡞ࡾ㸪ࡉࡽ㸪ΰධ⋡ࢆቑຍ࡛ࡁࡿ≧ἣ࡛࠶ࡗࡓࠋ࡞࠾㸪UFC ࢆ⮬ᕫሸࡍ ࡿሙྜࡣࣇࣟ㸫ࡣ200mm ௨ୖࡀᚲせ࡛࠶ࡾ㸪ᮏᐇ㦂࡛ࡣࡇࢀࢆ┠Ᏻࡋࡓࠋ ኴ࠸⧄⥔FC㸪FD㸪FEձࡘ࠸࡚ΰධ㔞ࢆ 3.0%ࡋࡓ㓄ྜϩ࡛ࡣ㸪ࣇࣟ㸫ࡣ 200mm ⛬ᗘ࡞ ࡗࡓࡀ㸪┿̺ ♧ࡍࡼ࠺⧄⥔ FEձ࡛ࡣࣔࣝࢱࣝࡀศ㞳ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡇ࡛㸪 㓄ྜϪ࡛ࡣ⧄⥔FC FEձࢆΰྜࡋ࡚⏝࠸ࡿࡇࡋ㸪ࡑࡢΰྜྜࢆኚࡉࡏࡿࡇࡋࡓࠋ ࡑࡢ⤖ᯝ㸪⧄⥔FEձࡀከ࠸⧄⥔ࣔࣝࢱࣝࡀศ㞳ࡍࡿഴྥࡀᙉࡃ㸪⧄⥔ FC2%⧄⥔ FEձ1% ࡋࡓሙྜࡣࣇࣟ㸫ࡀ200mm ࡛ศ㞳ࡶࡰぢࡽࢀ࡞ࡗࡓࠋ ࡲࡓ㸪⧄⥔FEձࡢศ㞳ࢆᨵၿࡍࡿࡓࡵ㸪⧄⥔ FEձࡢ㛗ࡉࢆኚࡉࡏ࡚ΰධࡋࡓ㓄ྜϫ࡛ࡣ㸪 ⧄⥔㛗ࡀ▷ࡃࡋࡓ⧄⥔FEղ⧄⥔ FEճࢆ 3.0%ΰධࡋࡓሙྜࡣ㸪ࣇࣟ㸫್ࡣ 270mm ࡞ࡾ㸪 ⧄⥔ࣔࣝࢱ࣐ࣝࢺࣜࢡࢫࡢศ㞳ࡶぢࡽࢀ࡞ࡗࡓࠋ ࡉࡽ㸪⧄⥔FEղ⧄⥔ FEճࢆ 4.0%ΰධࡋࡓ㓄ྜϬ࡛ࡣ㸪ࣇࣟ㸫್ࡣ 270mm ࡛㸪⧄⥔ࡢΰ ධ㔞ࢆ3%ẚ࡚ࡶ㸪ࣇࣟ㸫್ࡢపୗࡣぢࡽࢀ࡞ࡗࡓࠋ ௨ୖࡽࠊྠ୍㓄ྜ⧄⥔ΰධ㔞࠾࠸࡚ࠊ⧄⥔ᚄࡀኴࡃ࡞ࡿࠊ⧄⥔㛗ࡀ▷ࡃ࡞ࡿࠊ ࣇ್࣮ࣟࡀࡁࡃ࡞ࡿഴྥࢆ♧ࡉࢀࡓࠋ ᅗ̺ ࣇࣟ㸫ヨ㦂⤖ᯝ ┿̺ ᮦᩱศ㞳≧ἣ 0 100 200 300 400 500
FA FB FC FD FEձ FEղ FEճ FCE1 FCE2 FCE3
ࣇ࣮ࣟ (mm) ⧄⥔✀㢮 Ϩ;1.8% ϩ;3.0% Ϫ;3.0% ϫ;3.0% Ϭ;4.0% 㓄ྜ/ ⧄⥔ΰධ㔞
4.3.1.2 ᅽ⦰ᙉᗘヨ㦂⤖ᯝ ᅽ⦰ᙉᗘヨ㦂⤖ᯝࢆᅗ̺ ♧ࡍࠋỈࢭ࣓ࣥࢺẚࡢపῶࡼࡾᅽ⦰ᙉᗘࡀᖜቑຍࡋࡓࠋ 㓄ྜϨ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ22%࡛㸪⧄⥔✀㢮㛵ࢃࡽࡎ㸪ᅽ⦰ᙉᗘࡀࡰ 100N/mm2⛬ᗘ࡛࠶ ࡗࡓࠋ㓄ྜϩ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ19%࡛㸪ྠ୍ΰධ㔞ୗ㸪⧄⥔ࡀ⣽ࡃ㸪▷࠸㸪㧗࠸ᅽ⦰ᙉ ᗘࡀᚓࡽࢀࡓࠋ㓄ྜϪ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ18%࡛㸪✀㢮ࡢ⧄⥔ࡢΰධྜࡀኚࡋ࡚ࡶ㸪 ࡰྠ⛬ᗘࡢ140 N/mm2ࡢᅽ⦰ᙉᗘࡀᚓࡽࢀࡓࠋ㓄ྜϫ࡛ࡣ㸪Ỉࢭ࣓ࣥࢺẚࡀ17%࡛㸪⧄⥔ FE ձ ࡀ᭱ࡶ㧗࠸ᅽ⦰ᙉᗘࡀᚓࡽࢀࡓࡀ㸪⧄⥔㛗ࡀ▷ࡃࡋࡓ⧄⥔FEղ㸪FEճ࡛ࡣ㸪ᅽ⦰ᙉᗘࡀపୗࡍ ࡿഴྥࡀぢࡽࢀࡓࠋࡑࡢ⌮⏤㸪ኴᚄࡢ⧄⥔ᑐࡋ࡚㸪⧄⥔㛗ࡀ▷ࡍࡂࡿ㸪⿵ᙉຊࡀపୗࡍࡿ ⪃࠼ࡽࢀࡿࠋ㓄ྜϬ࡛ࡣ㸪㓄ྜϫẚ࡚㸪⧄⥔ΰධ㔞ࡀቑຍࡋ࡚ࡶ㸪ᅽ⦰ᙉᗘࡣపୗࡋ࡞ࡗ ࡓࠋ 4.3.1.3 ᭤ࡆᙉᗘヨ㦂⤖ᯝ ษࡾḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂࡛ᚓࡽࢀࡓⲴ㔜㸫㛤ཱྀኚ᭤⥺ࢆᅗ̺ ♧ࡍࠋ㓄ྜϨࡢሙ ྜ㸪⧄⥔FA㸪FB ࡣᙉᗘࡀ㧗ࡃ࡞ࡗࡓࡀ㸪ᙉᗘⅬ௨㝆ࡢᛂຊపୗࡀᛴ⃭࡛࠶ࡗࡓࠋ⧄⥔ FC㸪FD㸪 FEձࡣ⧄⥔ FA 㸪FB ẚࡿᙉᗘࡣపࡃ࡞ࡗࡓࡀ㸪ᘏᛶⓗ࡞ᣲື࡞ࡗࡓࠋ⧄⥔ΰධ㔞ࢆ 3% ࡋࡓ㓄ྜϩ࡛ࡣ⧄⥔FEձࡀ᭱ࡶᙉᗘࡀ㧗ࡃ࡞ࡗࡓࠋࡋࡋ㸪ୖ㏙ࡢ㏻ࡾ⧄⥔ FEձ࡛ࡣᮦᩱศ 㞳ࡀ⏕ࡌࡿࡓࡵ㸪ࡇࡢࡲࡲ࡛ࡣ⏝࡛ࡁ࡞࠸ࠋࡑࡇ࡛㸪㓄ྜϩࡢ⤖ᯝࡼࡾ㸪⧄⥔FEձࢆΰྜࡋ ࡓࡢࡀ㓄ྜϪ࡛࠶ࡿࠋ㓄ྜϪ࡛ࡣ⧄⥔FEձ FC ࡢΰྜྜࢆኚࡉࡏࡓࡀ㸪᭤ࡆ≉ᛶࡣ ࢇኚࡋ࡞࠸⤖ᯝ࡞ࡗࡓࠋ 㓄ྜϫ࡛ࡣ㸪FEձࢆ⏝ࡋࡓሙྜ㸪ᮦᩱศ㞳ࡀ⏕ࡌࡓࡀ㸪㧗࠸᭤ࡆᙉᗘࡀᚓࡽࢀࡓࠋ⧄⥔㛗ࡀ ▷ࡃ࡞ࡿ㸪᭤ࡆᙉᗘࡀపୗࡍࡿഴྥࡀぢࡽࢀ㸪⧄⥔ࣔࣝࢱ࣐ࣝࢺࣜࢡࢫࡢ╔ຊࡀ㊊ࡾ࡞ࡃ ࡞ࡿࡓࡵ⪃࠼ࡽࢀࡿࠋ 㓄ྜϬ࡛ࡣ⧄⥔ΰධ㔞ࢆቑຍࡋ࡚ࡶ㸪᭤ࡆᙉᗘࡣᖜࡣቑຍࡋ࡞ࡗࡓࠋ 4.3.2 ᡴ㎸ࡳ᪉ἲࡀ⧄⥔ࡢ㓄ྥ᭤ࡆᣲືཬࡰࡍᙳ㡪 4.3.2.1 ࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘヨ㦂⤖ᯝ ྛࣂࢵࢳࡢࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘヨ㦂⤖ᯝࢆ⾲̺ ♧ࡍࠋ⧄⥔ΰධᚋࡢࣇࣟ㸫್ࡣ࠸ ᅗ̺ ᅽ⦰ᙉᗘ 0 50 100 150 200
FA FB FC FD FEձ FEղ FEճ FCE1 FCE2 FCE3
ᅽ⦰ᙉᗘ (N/mm 2) ⧄⥔✀㢮 Ϩ;1.8% ϩ;3.0% Ϫ;3.0% ϫ:3.0% Ϭ;4.0% 㓄ྜ/ ⧄⥔ΰධ㔞
ࡎࢀࡶ220mm ⛬ᗘ࡛㸪ࣂࢵࢳ㛫ࡢᕪࡣ↓ࡗࡓࠋᅽ⦰ᙉᗘヨ㦂ࡢ⤖ᯝ㸪ᅇࡢ㣴⏕ ᗘࡀᶆ‽ ⇕㣴⏕␗࡞ࡿࡓࡵ㸪ⱝᖸపࡃ࡞ࡗࡓࡀ㸪ࣂࢵࢳ㛫ࡢᕪࡣ↓ࡗࡓࠋ ⾲̺ ࣇࣞࢵࢩࣗᛶ≧ᅽ⦰ᙉᗘ ࣂࢵࢳ NO. ヨ㦂య NO. ⦎ࡾୖࡀࡾ ᗘ 㸦Υ㸧 ࣇࣟ㸫 㸦mm㸧 ✵Ẽ㔞 㸦%㸧 ༢ᐜ✚㉁㔞 㸦g/L㸧 ᅽ⦰ᙉᗘ 㸦N/mm2㸧 1 B㸫1 33 229 7.8 2262 137 2 C㸫1 26 225 7.2 2281 138 3 B㸫2 25 208 6.0 2298 139 4 C㸫2 33 233 7.2 2255 134 4.3.2.2 ᶆ‽᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ ᅗ̺ ྛࣂࢵࢳࡢ100×100×400mm ᶆ‽᭤ࡆ౪ヨయ A ࡢ 3 Ⅼ᭤ࡆヨ㦂⤖ᯝࢆ♧ࡍࠋࣂࢵࢳ 㛫ࡢᕪࡣࢇぢࡽࢀ࡞ࡗࡓࠋ 4.3.2.3 ࣃࢿࣝ㒊ᮦࡽษࡾฟࡋࡓ᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ ὶືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝB㸫1 ࡛㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື᪉ྥᑐࡋ࡚ᆶ┤ษࡾฟࡋࡓ ౪ヨయࡢ3 Ⅼ᭤ࡆヨ㦂ࡢ⤖ᯝࢆᅗ̺ D ♧ࡍࠋࡇࡇ࡛ࡣ㸪ࣃࢿࣝෆࡢ⨨ࡀ㏆࠸ 8 ᮏࡢ౪ヨ D 㓄ྜϨ E 㓄ྜϩ F 㓄ྜϪ G 㓄ྜϫ㸪Ϭ ᅗ̺ ᭤ࡆᛂຊ㸫ࡦࡧࢀ㛤ཱྀኚ᭤⥺ 0 1 2 3 4 5 0 5 10 15 20 㛤ཱྀኚ㸦mm㸧 ᭤ࡆᛂຊ㸦 N/ m m 2 ) FA FB FC FD FEձ ⧄⥔ΰධ㔞 1.8% 0 1 2 3 4 5 0 5 10 15 20 㛤ཱྀኚ㸦mm㸧 ᭤ࡆᛂຊ㸦 N/ m m 2 ) FC FD FEձ ⧄⥔ΰධ㔞 3% 0 1 2 3 4 5 0 5 10 15 20 㛤ཱྀኚ㸦mm㸧 ᭤ࡆᛂຊ㸦 N/ m m 2 ) FCEձ FCEղ FCEճ ⧄⥔ΰධ㔞 3% 0 1 2 3 4 5 0 5 10 15 20 FEճ FEղ ᭤ࡆᛂຊ㸦 mm 2 㸧 㛤ཱྀኚ㸦mm㸧 FEճ FEղ FEձ ⧄⥔ΰධ㔞 3% 4%
యࢆ୍⤌ࡋ㸪ᆺᯟᗏ㠃ഃษࡾḞࡁࡢ࠶ࡿ౪ヨయ4 ᮏ㸪ᡴ㎸ࡳ㠃ഃษࡾḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏࡎࡘ㸪3 ⤌ࢆศࡅ࡚㸪ࡑࢀࡒࢀࡢᖹᆒ್࡛♧ࡋࡓࠋ ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ㞳ࢀࡿ㸪ࡍ࡞ࢃࡕ㸪ὶື㊥㞳ࡀ㛗ࡃ࡞ࡿ㸪᭤ࡆᙉᗘࡀపୗ ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡢ⌮⏤ࡋ࡚㸪ὀࡂཱྀࡽ㞳ࢀࡿ㸪⧄⥔ࡀࢥࣥࢡࣜ㸫ࢺ୰ࡢὶື᪉ ྥᥞ࠺ഴྥࡀ౪ヨయࡢ◚᩿㠃ࡽ☜ㄆࡉࢀࡓࠋ ᅗ̺ ౪ヨయࡢࡦࡧࢀᙉᗘ᭤ࡆᙉᗘࢆ♧ࡍࠋࡲࡓ㸪ᅗ̺ D ♧ࡍࡼ࠺㸪ྠ ࡌ⤌࡛ࡢ౪ヨయ࡛ࡣ㸪ᡴ㎸ࡳ㠃ᆺᯟᗏ㠃ࡢ᭤ࡆᣲືࡀࡰ➼ࡋ࠸ࡀ㸪ᆺᯟᗏ㠃ࡢࡦࡧࢀᙉᗘ ࡀᡴ㎸ࡳ㠃ࡼࡾ20%㧗ࡃ࡞ࡗࡓࠋ ὶືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝB㸫2 ࡛㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື᪉ྥᑐࡋ࡚ᖹ⾜ษࡾฟࡋࡓ D ึᮇ㒊ศ E య ᅗ̺ ౪ヨయ $㸦PP㸧ࡢ᭤ࡆヨ㦂⤖ᯝ D %㸫 E %㸫 F &㸫 G &㸫 ᅗ̺ ࣃࢿࣝ㒊ᮦࡽษࡾฟࡋࡓ᭤ࡆ౪ヨయࡢヨ㦂⤖ᯝ 0 0.1 0.2 0.3 0.4 0.5 0 5 10 15 20 㛤ཱྀኚ㸦mm㸧 ᭤ࡆᛂຊ㸦 N/ m m 2 㸧 ࣂࢵࢳNO.1 ࣂࢵࢳNO.2 ࣂࢵࢳNO.3 ࣂࢵࢳNO.4 0 1 2 3 4 5 0 5 10 15 20 㛤ཱྀኚ㸦mm㸧 ᭤ࡆᛂຊ㸦 N/ m m 2 㸧 ࣂࢵࢳNO.1 ࣂࢵࢳNO.2 ࣂࢵࢳNO.3 ࣂࢵࢳNO.4
D %㸫 E %㸫 F &㸫 G &㸫 ᅗ̺ ᭤ࡆࡦࡧࢀᙉᗘ᭤ࡆᙉᗘ 0 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 17 19 21 23 ᭤ࡆᛂຊ (N/m m 2) ౪ヨయNO. ᆺᯟᗏ㠃ࡦࡧࢀᙉᗘ ᡴ㎸ࡳ㠃ࡦࡧࢀᙉᗘ 0 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 17 19 21 23 ᭤ࡆᛂຊ (N/m m 2) ౪ヨయNO. እഃ౪ヨయ᭤ࡆᙉᗘ ෆഃ౪ヨయ᭤ࡆᙉᗘ ࡦࡧࢀᙉᗘ 0 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 17 19 21 23 ᭤ࡆᛂຊ (N/mm 2) ౪ヨయNO. ᆺᯟᗏ㠃ࡦࡧࢀᙉᗘ ᡴ㎸ࡳ㠃ࡦࡧࢀᙉᗘ 0 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 17 19 21 23 ᭤ࡆᛂຊ (N/mm 2) ౪ヨయNO. ᭤ࡆᙉᗘ ࡦࡧࢀᙉᗘ እഃ౪ヨయ᭤ࡆᙉᗘ
౪ヨయࡢ3 Ⅼ᭤ࡆヨ㦂ࡢ⤖ᯝࢆᅗ̺ E ♧ࡍࠋࡇࡇ࡛ࡣ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽྠࡌ㊥ 㞳ࡢ4 ᮏࡢ౪ヨయࢆ୍⤌ࡋ㸪4 ᮏࡢ౪ヨయࡢᖹᆒ್࡛♧ࡋࡓࠋᅗ̺ E ♧ࡍࡼ࠺㸪ࢥࣥ ࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ㞳ࢀࡿ㸪ࡍ࡞ࢃࡕ㸪ࢥࣥࢡࣜ㸫ࢺࡢὶື㊥㞳ࡀ㛗ࡃ࡞ࡿ㸪᭤ࡆᙉ ᗘࡀᖜቑຍࡋࡓࠋᅗ̺ ♧ࡍࡼ࠺㸪᭤ࡆᙉᗘࡀ㧗ࡃ࡞ࡗࡓ౪ヨయNO.19 ࡛ࡣ㸪⧄⥔ ࡀ◚᩿㠃ᑐࡋ࡚ᆶ┤㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᭤ࡆᙉᗘࡀపࡃ࡞ࡗࡓ౪ヨయNO.7 ࡛ࡣ㸪⧄ ⥔ࡀ◚᩿㠃ᑐࡋ࡚ᩳࡵ㓄ྥࡋ࡚࠸ࡓࠋࡇࢀࡼࡾࠊ᭤ࡆᙉᗘᑐࡋ࡚⧄⥔ࡢ㓄ྥࡀࡁࡃᙳ㡪 ࡍࡿ⪃࠼ࡽࢀࡿࠋ ࡞࠾ࠊᅗ̺ E ♧ࡍࡼ࠺㸪ὀࡂཱྀࡽ㞳ࢀࡿ㊥㞳ࡼࡗ࡚㸪᭤ࡆᙉᗘࡀᖜኚࡋ ࡓࡀ㸪ࡦࡧࢀᙉᗘࡣࡰ୍ᐃ࡛㸪⧄⥔ࡢ㓄ྥࡢᙳ㡪ࡣᑠࡉࡗࡓࠋ ࡉࡽ㸪ᅗ̺ E ♧ࡍࡼ࠺㸪ὀࡂཱྀࡽྠࡌ㊥㞳࡛ࡢ4 ᮏࡢ౪ヨయ࡛ࡣ㸪እഃ㸦ᆺᯟ ഃ㠃㏆࠸ഃ㸧ࡢ2 ᮏࡢ᭤ࡆᙉᗘࡀෆഃࡢ㸰ᮏࡼࡾ㧗ࡃ࡞ࡿഴྥࡀぢࡽࢀࡓࠋ ⛣ືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝC㸫1 ࡛㸪ࣃࢿࣝࡢ㛗㎶ᆶ┤ษࡾฟࡋࡓ౪ヨయࡢ 3 Ⅼ᭤ࡆ ヨ㦂ࡢ⤖ᯝࢆᅗ̺ F ♧ࡍࠋヨ㦂యB㸫1 ྠᵝ㸪ࣃࢿࣝෆࡢ⨨ࡀ㏆࠸ 8 ᮏࡢ౪ヨయࢆ 1 ⤌ࡋ㸪ᆺᯟᗏ㠃ഃษḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏ㸪ᡴ㎸ࡳ㠃ഃษḞࡁࡢ࠶ࡿ౪ヨయ 4 ᮏࡎࡘ㸪 3 ⤌ࢆศࡅ࡚㸪ࡑࢀࡒࢀࡢᖹᆒ್࡛♧ࡋࡓࠋ ྠࡌ⤌࡛ࡢᆺᯟᗏ㠃ഃࡢ᭤ࡆᙉᗘᡴ㎸ࡳ㠃ഃࡢ᭤ࡆᙉᗘࡀከᑡኚࢃࡗࡓࡀ㸪ࡑࡢࡣ㸪ࣃࢿ ࣝෆࡢ⨨ࡼࡽࡎ㸪ࡰྠ୍ࡢᣲື࡞ࡗࡓࠋࡲࡓ㸪ᅗ̺ F ♧ࡍࡼ࠺㸪⨨ࡀ㏆࠸ ౪ヨయࡢᆺᯟᗏ㠃ࡢࡦࡧࢀᙉᗘࡀᡴ㎸ࡳ㠃ࡼࡾ㧗ࡃ࡞ࡿഴྥࡀぢࡽࢀࡓ㸪ࡇࢀࡣᆺᯟᗏ㠃 ㏆ࡢ⧄⥔ࡀᡴ㎸ࡳ㠃㏆ࡼࡾ࠸࠸㓄ྥࡋ࡚࠸ࡿࡇࡀ౪ヨయࡢ◚᩿㠃ࡽ☜ㄆࡉࢀࡓࠋ ⛣ືᡴ㎸ࡳ᪉ἲࢆ⏝࠸ࡓࣃࢿࣝC㸫2 ࡛㸪ࣃࢿࣝࡢ㛗㎶ᖹ⾜ษࡾฟࡋࡓ౪ヨయࡢ Ⅼ᭤ࡆ ヨ㦂ࡢ⤖ᯝࢆᅗ̺ G ♧ࡍࠋࡇࡇ࡛ࡣ㸪ヨ㦂య %㸫 ྠᵝ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࡽ ྠࡌ㊥㞳ࡢ ᮏࡢ౪ヨయࢆ୍⤌ࡋ㸪 ᮏࡢ౪ヨయࡢᖹᆒ್࡛♧ࡋࡓࠋ ᭤ࡆᙉᗘࡣ࠶ࡿ⛬ᗘࡢࣂࣛࢶ࢟ࡀ࠶ࡗࡓࡀ㸪యⓗࡣࡰྠ୍ࡢ᭤ࡆᣲືࢆ♧ࡉࢀࡓࠋࡲࡓ㸪 ᅗ̺ G ♧ࡍࡼ࠺㸪እഃ㸦ᆺᯟഃ㠃㏆࠸ഃ㸧౪ヨయ࡛ࡣ㸪᭤ࡆᙉᗘࡀ㧗ࡃ࡞ࡿഴྥࡶ ぢࡽࢀ㸪ቨຠᯝࡶ☜ㄆࡉࢀࡓࠋ ᅗ̺ ◚᩿㠃ࡢ⧄⥔ࡢ㓄ྥ No.7 No.19 ࢥࣥࢡ࣮ࣜࢺࡢὶື᪉ྥ
㻌
4.4 ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1)ྠ୍㓄ྜ⧄⥔ΰධ㔞࠾࠸࡚ࠊ⧄⥔ᚄࡀኴࡃ࡞ࡿࠊ⧄⥔㛗ࡀ▷ࡃ࡞ࡿࠊࣇ್࣮ࣟ ࡀࡁࡃ࡞ࡿഴྥࢆ♧ࡉࢀࡓࠋ (2)ᅽ⦰᭤ࡆ≉ᛶ╔┠ࡋࡓሙྜ㸪W/C ࢆ 18%ࡋ࡚ φ0.66×30mm ࢆ 3%ΰධࡋࡓሙྜࡀ᭱ࡶ ඃࢀ࡚࠸ࡓࡀ㸪ᮦᩱศ㞳ࡍࡿഴྥࡀぢࡽࢀࡓࠋࡑࡇ࡛㸪φ0.66×30mm φ0.1×12mm ࡢ⧄⥔ࢆ 1㸸 2 ࡢྜ࡛ΰྜࡋࡓࡇࢁᮦᩱศ㞳ࢆᢚไ࡛ࡁ㸪140N/mm2ࡢᅽ⦰ᙉᗘ15N/ mm2௨ୖࡢ᭤ࡆ ᙉᗘࡀᚓࡽࢀࡓࠋ (3)ࡲࡓ㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࢆᆺᯟࡢ∦➃ᅛᐃࡋ࡚ࢥࣥࢡࣜ㸫ࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ ᡴࡕ㎸ࡴ᪉ἲࢆ⏝࠸ࡓሙྜ㸪ὶື᪉ྥᑐࡋ࡚ᖹ⾜ษࡾฟࡋࡓ 100×100×400mm ౪ヨయ࡛ࡣ㸪 ࣃࢿࣝෆࡢ⨨ࡼࡾ᭤ࡆ≉ᛶࡀࡁࡃኚࡍࡿࡇࡀ♧ࡉࢀࡓࠋ≉㸪ࢥࣥࢡࣜ㸫ࢺὀࡂཱྀ ㏆࠸౪ヨయࡢ᭤ࡆᙉᗘࡣὀࡂཱྀࡽ᭱ࡶ㐲࠸⨨ࡢᙉᗘẚ࡚1/4 ⛬ᗘ࡞ࡗࡓࠋࡇࢀࡣ౪ヨ యෆࡢ⧄⥔ࡢ㓄ྥࡢᙳ㡪࡛࠶ࡿࡇࡀ◚᩿㠃ࡢ⧄⥔ࡢ≧ἣࡽ᥎ᐹࡉࢀࡓࠋ ୍᪉㸪ࢥࣥࢡࣜ㸫ࢺࡢὀࡂཱྀࢆヨ㦂య㍈᪉ྥ㐃⥆ⓗ⛣ືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲࢆ⏝࠸ࡓሙ ྜ㸪౪ヨయࡢษࡾฟࡍ᪉ྥ࠾ࡼࡧ⨨ࡼࡽࡎ᭤ࡆᣲືࡁ࡞ᕪࡣぢࡽࢀ࡞ࡗࡓࠋ
➨4 ❶ࡢཧ⪃ᩥ⊩
[1] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-002-2003
➨
5 ❶ UFC ᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥ
5.1 ࡣࡌࡵ ࣐ࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢศᩓ࣭㓄ྥࡢホ౯ࡑࢀࡀຊᏛᣲືཬࡰࡍᙳ㡪㛵ࡋ࡚ࡣ㸪FRC ࡀ Ⓩሙࡋ࡚௨᮶㸪᪥⮳ࡿࡲ࡛㔜せ࡞ㄢ㢟ࡋ࡚ㄆ㆑ࡉࢀ࡚ࡣ࠸ࡿࡀ㸪ᮍࡔゎỴࡉࢀ࡚࠸࡞࠸ㄢ 㢟࡛࠶ࡿࠋࡑࡢ᭱ࡢ⌮⏤ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ࠶ࡿ࠸ࡣࣔࣝࢱ࣐ࣝࢺࣜࢡࢫ୰ࡢ⧄⥔ࡢศᩓ࣭㓄ྥ ࢆほᐹࡍࡿࡇ⮬యࡀ㞴ࡋ࠸࠺࠼㸪ࡉࡽ⌧≧࡛ࡣᡴ㎸ࡳ⧄⥔ࡢศᩓ࣭㓄ྥࢆไᚚࡍࡿᢏ⾡ ࡀᏑᅾࡋ࡞࠸ࡓࡵ࡛࠶ࡿ⪃࠼ࡽࢀࡿࠋ ࡑࡇ࡛㸪ᮏ❶࡛ࡣ▷⧄⥔ࡢ≉㓄ྥ㛵ࡍࡿᇶ♏ⓗ㈨ᩱࢆᚓࡿࡇࢆ┠ⓗࡋ࡚㸪᭤ࡆ౪ヨయ ࢆᑐ㇟ࡋ࡚㸪ࢥࣥࢡ࣮ࣜࢺࢆ㏱᫂࡞⢓ᛶࢆ᭷ࡍࡿὶయ࡛ࣔࢹࣝࡍࡿࡇ࡛౪ヨయ୰ࡢ⧄⥔ ࡢྍどࢆヨࡳࡓࠋࡲࡓ㸪◳ࡋࡓ㗰⧄⥔UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ࡚⧄⥔ࡢ㓄ྥࢆほᐹࡋ㸪ྍ どᐇ㦂ࡢ⤖ᯝẚ㍑ࡋࡓࠋࡉࡽ㸪ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡿࡇࡼࡾ⧄⥔ࡢ㓄ྥࢆኚ࠼ࡓྜᡂ⧄ ⥔UFC ౪ヨయࡢ᭤ࡆヨ㦂ࢆ⾜࠸㸪⧄⥔ࡢ㓄ྥࡀ᭤ࡆᣲືཬࡰࡍᙳ㡪ࢆ᳨ウࡋࡓࠋ 5.2 ᐇ㦂ᴫせ 5.2.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ࣇࣞࢵࢩࣗࢥࣥࢡ࣮ࣜࢺࡢྍどࣔࢹࣝࡣᶫᮏࡽ>@ࡀᥦࡋࡓ㧗྾Ỉᛶ㧗ศᏊᶞ⬡㸦ࢡ ࣜࣝ㓟㔜ྜయ㒊ศࢼࢺ࣒ࣜ࢘ሷᯫᶫ≀㸧Ỉࢆῧຍࡋ࡚ᚓࡽࢀࡿ↓Ⰽ㏱᫂ࡢ⢓ᛶࢆ᭷ࡍࡿὶయ ࢆ⏝࠸ࡓࠋỈᑐࡍࡿᶞ⬡ࡢῧຍ㔞ࡣ3g/ࣜࢵࢺࣝࢆ┠Ᏻࡋ࡚㸪0 ᡴࣇ࣮ࣟࡀ 200mm ⛬ᗘ࡞ ࡿࡼ࠺ㄪᩚࡋࡓࠋ࡞࠾㸪ᐇ㝿ࡢUFC ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ࡣᐦᗘࡸࣞ࢜ࣟࢪ࣮≉ᛶ ࡀ␗࡞ࡿࡓࡵ㸪ࣇ್࣮ࣟࢆ୍⮴ࡉࡏࡓࡋ࡚ࡶྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ᐇ㝿ࡢUFC ࡢᣲ ືࢆ⌧࡛ࡁࡿࢃࡅ࡛ࡣ࡞࠸ࡀ㸪⧄⥔ࡢ㓄ྥࡢᐃᛶⓗ࡞ᣲືࡣ⌧࡛ࡁࡿ⪃࠼ࡓࠋ ⧄⥔ࡋ࡚ࡣȭ0.6615mm ࡢ PVA ⧄⥔ȭ0.215mm ࡢ㗰⧄⥔ࢆ⏝࠸ࡑࢀࡒࢀᐇ㦂ࢆ⾜ࡗ ࡓࠋ⧄⥔ࡢΰධ㔞ࡀྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢ⧄⥔ࡢ㓄ྥ࠼ࡿᙳ㡪ࢆ☜ㄆࡍࡿࡓࡵ㸪 PVA ⧄⥔ࡢሙྜࡣ㸪ΰධ㔞 0.5%㸪1.0%㸪2.0%㸪3.0%ࡢ 4 ✀㢮ࡋࡓࠋࡲࡓ㗰⧄⥔ࡢሙྜࡣᚋ ㏙ࡍࡿPVA ⧄⥔ࡢヨ㦂⤖ᯝࢆཧ⪃ࡋ࡚㸪⧄⥔ࡢ㓄ྥࡢほᐹࢆࡋ᫆ࡃࡍࡿࡓࡵ⧄⥔ࡢΰධ㔞ࡣ 0.5%ࡋࡓࠋ ᆺᯟࡣ᭤ࡆ౪ヨయ⏝ᆺᯟࢆᶍᨃࡋࡓ 100120400mm (ᖜ㧗ࡉ㛗ࡉ) ࡢࢡࣜࣝ〇ࡢ ᐜჾࢆ⏝࠸ࡓࠋᡴ㎸ࡳ᪉ἲࡣ㸪ᅗ̺ ♧ࡍࡼ࠺ࢥࣥࢡ࣮ࣜࢺࡢὀࡂཱྀࢆᆺᯟࡢ∦➃ᅛᐃ ࡋࢥࣥࢡ࣮ࣜࢺࢆᆺᯟෆ࡛ὶືࡉࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪ὶືᡴ㎸ࡳࡪ㸧㸪ᆺᯟෆࡢࢥ ࣥࢡ࣮ࣜࢺࡢ㧗ࡉࡀ౪ヨయ㍈᪉ྥ࡛ᆒ➼࡞ࡿࡼ࠺ὀࡂཱྀࢆ౪ヨయ㍈᪉ྥ㐃⥆ⓗ⛣ືࡉ ࡏ࡚ᡴࡕ㎸ࡴ᪉ἲ㸦௨ୗ㸪⛣ືᡴ㎸ࡳࡪ㸧ࡢ2 ㏻ࡾࡋࡓࠋ ほᐹࡣᡴ㎸ࡳ≧ἣࢆࣅࢹ࣓࢜࢝ࣛࡼࡾᙳࡍࡿࡇࡋࡓࠋ5.2.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ๓㡯ࡢྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥࡢᣲືࢆᐇ㝿ࡢUFC ౪ヨయ࡛☜ㄆ ࡍࡿࡓࡵ㸪㗰⧄⥔ࢆ⏝࠸ࡓUFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ㸪ษ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆ☜ㄆࡋࡓࠋ࡞࠾㸪 㗰⧄⥔UFC ࢆ⏝࠸ࡓࡢࡣ㸪ྜᡂ⧄⥔ࡢሙྜࡣษ᩿㠃࠾࠸࡚⧄⥔ࢆ⫗║࡛☜ㄆࡍࡿࡇࡀᅔ 㞴࡛࠶ࡿࡓࡵ࡛࠶ࡿࠋࡇࡇ࡛⏝࠸ࡓUFC ࡣ㸪ࣇࣛࣥࢫ࡛ᢏ⾡㛤Ⓨࡉࢀᡃࡀᅜᑟධࡉࢀࡓࡶࡢ ࡛㸪⌧ᅾT ♫ࡽ౪⤥ࡉࢀ࡚࠸ࡿࣉ࣑ࣞࢵࢡࢫࢱࣉࡢࡶࡢ࡛࠶ࡿࠋᮦᩱ㸪㓄ྜࡣᵝ㏻ࡾ࡛࠶ ࡾ㸪ȭ0.215mm ࡢ㗰⧄⥔ࢆ 2vol%ΰධࡋࡓࡶࡢ࡛࠶ࡿࠋᡴ㎸ࡳࡢ 0 ᡴࣇ࣮ࣟࡣ 275mm ࡛࠶ ࡾ㸪100100400mm ᭤ࡆ౪ヨయὶືᡴ㎸ࡳࢆ⾜ࡗࡓࠋᶆ‽⇕㣴⏕ࢆ⾜ࡗࡓࡢࡕ㸪ษḞࡁࢆ タࡅ㸪ษḞࡁࡣࡾࡢ3 Ⅼ᭤ࡆヨ㦂ࢆ⾜࠸㸪◚᩿ᚋࡢヨ㦂∦ࢆࢥࣥࢡ࣮ࣜࢺ࢝ࢵࢱ࣮࡛ษ᩿ࡋ࡚ษ ᩿㠃ࡢ⧄⥔ࡢ≧ἣࢆほᐹࡋࡓࠋ 5.2.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ྍどᐇ㦂ࡢ⤖ᯝࡣḟ⠇࡛㏙ࡿࡀ㸪ᐇ㦂ࡢ⤖ᯝ㸪ᡴ㎸ࡳ᪉ἲࡼࡾ᭤ࡆ౪ヨయෆࡢ⧄⥔ࡢ㓄 ྥࡀ␗࡞ࡿࡇࡀ☜ㄆࡉࢀࡓࠋࡑࡇ࡛ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡓሙྜUFC ࡢ᭤ࡆᣲືࡀࡢࡼ࠺ ኚࡍࡿࢆ☜ㄆࡍࡿࡇࡋࡓࠋࡇࡇ࡛⏝࠸ࡓUFC ࡣ⧄⥔ࡋ࡚ 2 ✀㢮ࡢ PVA ⧄⥔ࢆΰྜࡋ ࡚⏝࠸ࡓࡶࡢ࡛㸪㓄ྜࡣⴭ⪅ࡽࡀྜᡂ⧄⥔UFC ࡋ࡚㛤Ⓨࢆ㐍ࡵ࡚ࡁࡓࡶࡢ࡛࠶ࡿࠋ࡞࠾㸪ࡇ ࡇ࡛ྜᡂ⧄⥔UFC ࢆ⏝࠸ࡓࡢࡣྍどᐇ㦂ࡼࡾ⧄⥔ࡢ㓄ྥࡢᐃᛶⓗ࡞ᣲືࡣ⧄⥔ࡢ✀㢮㸪ΰ ධ㔞ࡣ౫Ꮡࡋ࡞࠸ࡇࡀ♧ࡉࢀ㸪ྜᡂ⧄⥔UFC ࡼࡗ࡚ࡶ୍⯡ⓗ࡞ UFC ࠾ࡅࡿ㓄ྥ᭤ࡆ ᣲືࡢᐃᛶⓗ࡞㛵ಀࡣ☜ㄆ࡛ࡁࡿ⪃࠼ࡓࡓࡵ࡛࠶ࡿࠋUFC ࡢ⏝ᮦᩱ㓄ྜࢆ⾲̺ ♧ ࡍࠋᡴ㎸ࡳࡢ0 ᡴࣇ࣮ࣟࡣ 204mm ࡛࠶ࡾ㸪ྠ୍ࣂࢵࢳࡢ UFC ࢆ 100100400mm ᭤ࡆ౪ヨ యὶືᡴ㎸ࡳ⛣ືᡴ㎸ࡳࡼࡾᡴ㎸ࢇࡔࠋ㣴⏕ࡣᡴ㎸ࡳᚋ24 㛫ࡣᡴ㎸ࡳ㠃ࢆࣛࢵࣉ࡛そ ࡗࡓ≧ែ࡛20ΥࡢẼ୰㣴⏕ࢆ⾜࠸㸪ࡑࡢᚋ 90ΥࡢẼ㣴⏕ࢆ 48 㛫⾜ࡗࡓࠋ㣴⏕⤊ᚋ㸪ษḞ ࡁࢆタࡅ㸪ᅗ̺2 ♧ࡍࡼ࠺࡞ษḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ࠾ࡇ࡞࠸㸪Ⲵ㔜㸫㛤ཱྀኚ᭤⥺ࢆ ィ ࡋࡓࠋ
㻔㼍㻕㻌ὶືᡴ㎸䜏
㻔㼎㻕㻌⛣ືᡴ㎸䜏
ᅗ̺ ᡴ㎸ࡳ᪉ἲヨ㦂ࡣࠕษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲࠖ>@㸦 JCI-S-002-2003㸧‽ࡌ࡚⾜ࡗࡓࠋࡓࡔࡋ㸪౪ヨయᩘࡘ࠸࡚ࡣ 1 ᮲௳ࡘࡁ 6 యࡋࡓࠋ ㍕Ⲵࡣ㸪ᡭື࣓࢝ࢽ࢝ࣝࢪࣕࢵ࢟ࢆ⏝ࡋ㸪Ⲵ㔜ࡢ᳨ฟࡣᐜ㔞 100kN ࡢ࣮ࣟࢻࢭࣝ㸪㛤 ཱྀኚࡢ᳨ฟࡣឤᗘ1/2000mm ࡢࢡࣜࢵࣉࢤ࣮ࢪࢆ⏝࠸ࡓࠋ 5.3 ᐇ㦂⤖ᯝ 5.3.1 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡿ⧄⥔ࡢ㓄ྥࡢほᐹ ᅗ̺ ȭ0.6615mm ࡢ PVA ⧄⥔ࢆ 3%⏝࠸ࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢࣇ࣮ࣟࡢ≧ἣ ࢆ♧ࡍࠋ0 ᡴࣇ࣮ࣟࡣ 210mm ࡞ࡾ㸪 ⧄⥔ࡢศᩓࡶⰋዲ࡛࠶ࡗࡓࠋ ᅗ̺ ࡣȭ0.6615mm ࡢ PVA ⧄⥔ࢆ 0.5%ΰධࡋࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸࡚ ὶືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡢᡴ㎸ࡳ㛤ጞࡽࡲ࡛ࡢ≧ἣࢆ♧ࡍࠋᅗ̺ D ࡢࡼ࠺ὶືࡍ ࡿࢥࣥࢡ࣮ࣜࢺࡢඛ➃࠾ࡼࡧᆺᯟᗏ㠃㏆࡛ࡣ⧄⥔ࡣỈᖹ࡞ࡗ࡚࠸ࡿࡀ㸪ὀࡂཱྀ㏆࠸ഃࡢ ୖ㒊࡛ࡣ⧄⥔ࡀᩳࡵ❧ࡗ࡚࠸ࡿ≧ἣࡀぢࡽࢀࡿࠋࡉࡽ㸪ᅗ̺ E ࡢࡼ࠺ὶࢀࡢඛ➃ࡀὀ ࡂཱྀࡢᑐഃࡢጔᆺᯟ㐩ࡋ㸪ࢥࣥࢡ࣮ࣜࢺࡀ๓᪉ὶࢀ࡞ࡃ࡞ࡿ㸪ࢥࣥࢡ࣮ࣜࢺࡣయⓗ ⾲̺5.1 ྜᡂ⧄⥔ UFC ࡢ㓄ྜ W/C (%) Air (%) ༢㔞(kg/m3) W C S P Ad F1 F2 18.0 5.0 175 1166 632 229 35 13 26 C:ࢩࣜ࢝ࣄ࣮࣒ࣗࢭ࣓ࣥࢺ㸪 S:6 ྕ⌛◁㸪 P:ࢩࣜ࢝ࣃ࢘ࢲ࣮㸪 Ad㸸㧗ᛶ⬟ῶỈ㸪 F1:PVA ⧄⥔(φ0.66×30mm)㸪 F2:PVA ⧄⥔(φ0.1×12mm)
䝻䞊䝗䝉䝹
䜽䝸䝑䝥䝀䞊䝆
౪ヨయ
㻟㻜
㻟㻜㻜
㻝㻜㻜
ᅗ̺ ษḞࡁࡣࡾࡢ Ⅼ᭤ࡆヨ㦂ୖ᪉ὶࢀጞࡵ㸪ࡑࡢ⤖ᯝ㸪᭱⤊ⓗࡣᅗ̺ G ࡢࡼ࠺⧄⥔ࡣᗏ㠃ࡽᩳࡵ๓᪉ୗฝࡢ ᨺ≀⥺≧㓄ྥࡍࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋࡇࡢࡼ࠺࡞㓄ྥࡢᣲືࡣᅗ̺ ♧ࡍࡼ࠺㗰⧄ ⥔ࡢሙྜ࡛ࡶྠᵝほᐹࡉࢀࡓࠋ ࡲࡓ㸪ᅗ̺㸪㸪 0.6615mm ࡢ PVA ⧄⥔ࢆ 1%㸪2%㸪࠾ࡼࡧ 3%ΰධࡋࡓྍど ࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢὶືᡴ㎸ࡳࡢ≧ἣࢆ♧ࡍࠋ⧄⥔㔞ࡀቑ࠼ࡿࡘࢀ࡚㓄ྥࡢ≧ἣࡀ ぢ㞴ࡃ࡞ࡿࡀ㸪⧄⥔ࡀᨺ≀⥺≧㓄ྥࡍࡿ≧ἣࡣ⧄⥔ΰධ㔞ࡀ0.5%ࡢሙྜྠᵝ࡛࠶ࡗࡓࠋ ᚑ᮶㸪᭤ࡆ౪ヨయࡢᆺᯟὶືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡣ㸪ࢥࣥࢡ࣮ࣜࢺࡣ౪ヨయࡢ㍈᪉ྥὶࢀ㸪 ⧄⥔ࡣỈᖹ᪉ྥ㓄ྥࡍࡿ⪃࠼࡚࠸ࡓࡀ㸪ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࢆ⏝࠸ࡓほᐹࡢ⤖ᯝ㸪ࢥ ࣥࢡ࣮ࣜࢺࡣ౪ヨయ㍈᪉ྥ࡛ࡣ࡞ࡃ㸪ᆺᯟᗏ㠃ࡽୖ᪉ྥࡗ࡚ὶࢀ㸪ࡑࡢ⤖ᯝ㸪⧄⥔ࡣỈᖹ ࡛ࡣ࡞ࡃ㖄┤㏆࠸᪉ྥ㓄ྥࡍࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋ௨ୖࡢࡇࡼࡾ㸪⮬ᕫሸᆺࡢUFC ࡛ࡣ㸪ࢥࣥࢡ࣮ࣜࢺࡀὶືࡍࡿࡇ࡛㸪ࡑࡢ᪉ྥ⧄⥔ࡀ㓄ྥࡍࡿ≉ᛶࡀ࠶ࡾ㸪ࡇࡢࡓࡵ౪ヨయ ୰ࡢ⧄⥔ࡢ㓄ྥࡣ⧄⥔ࡢ✀㢮ࡸ⧄⥔㔞࠸ࡗࡓࣃ࣓࣮ࣛࢱࡼࡾࡴࡋࢁ౪ヨయ୰࡛ࡢࢥࣥࢡ࣮ࣜ ࢺࡢὶࢀ᪉┤᥋ⓗ౫Ꮡࡍࡿࡶࡢ⪃࠼ࡽࢀࡿࠋ ୍᪉㸪⛣ືᡴ㎸ࡳࢆ⾜ࡗࡓሙྜࡣᅗ̺ ♧ࡍࡼ࠺⧄⥔ࡣࣛࣥࢲ࣒㓄ྥࡍࡿ⤖ᯝ࡞ ࡗࡓࠋ ⧄ ⧄⥔ࡢ㓄ྥ ᅗ̺5.3 ྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡢࣇ࣮ࣟ
(a) ὶࢀࡢඛ➃ࡀጔᆺᯟ฿㐩 (b) ᡴ㎸ࡳ㧗ࡉ 50% (c) ᡴ㎸ࡳ㧗ࡉ 80% (d) ᡴ㎸ࡳ ᅗ̺ ὶືᡴ㎸ࡳࡢሙྜࡢ 39$ ⧄⥔㸦㸧ࡢ㓄ྥ ᅗ̺ ὶືᡴ㎸ࡳࡢሙྜࡢ㗰⧄⥔㸦㸧ࡢ㓄ྥ
5.3.2 㗰⧄⥔ UFC ౪ヨయࡢษ᩿㠃ࡢほᐹ ᅗ㸫 3 Ⅼ᭤ࡆヨ㦂ᚋࡢ◚᩿㠃ࡢ≧ἣࢆ♧ࡍࠋᆺᯟᗏ㠃㏆࡛ࡣ⧄⥔ࡣ◚᩿㠃ᑐࡋ࡚ ᆶ┤㸦౪ヨయ㍈᪉ྥ㸧㓄ྥࡋ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢ୰ኸ㏆࡛ࡣ⧄⥔ࡣ◚᩿㠃ᑐࡋ࡚ᩳ ࡵ᪉ྥ㓄ྥࡋ࡚࠸ࡿࠋࡉࡽᡴ㎸ࡳ㠃㏆࠸㒊ศ࡛ࡣ⧄⥔ࡀᑡ࡞ࡃ࡞ࡗ࡚࠸ࡿࠋ ࡲࡓ㸪ᅗ㸫 ࡣ౪ヨయ㍈᪉ྥᆶ┤ษ᩿ࡋࡓษ᩿㠃ࢆ♧ࡍࠋᅗ୰ࡢⓑ࠸Ⅼࡀ㗰⧄⥔ࡢ ᅗ㸫 ΰධ⋡ ࡢሙྜࡢ㓄ྥ ᅗ㸫 ΰධ⋡ ࡢሙྜࡢ⧄⥔ࡢ㓄ྥ ᅗ㸫 ΰධ⋡ ࡢ⧄⥔ࡢ㓄ྥ ᅗ㸫 ⛣ືᡴ㎸ࡳࡢሙྜࡢ 39$ ⧄⥔ ࡢ㓄ྥ
ษ᩿㠃࡛࠶ࡾ㸪ᆺᯟᗏ㠃㏆ࡣⓑ࠸Ⅼࡢ㠃✚ࡀᑠࡉ࠸㸪ࡍ࡞ࢃࡕ⧄⥔ࡣ⧄⥔㍈ᑐࡋ࡚ᆶ┤ษ ᩿ࡉࢀ࡚࠸ࡿࡢᑐࡋ࡚㸪᩿㠃ࡢୖ㒊࡛ࡣ⧄⥔ࡀᑡ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀࡁࡃ࡞ࡗ࡚࠾ࡾ㸪ษ ᩿㠃ᑐࡋ࡚⧄⥔ࡀᩳࡵ㓄ྥࡋ࡚࠸ࡿ≧ἣࢆ♧ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋ ᅗ㸫 ࡣ౪ヨయࢆỈᖹ᪉ྥษ᩿ࡋࡓ᩿㠃ࡢ≧ἣࢆ♧ࡍࠋᅗ㸫 E ࡣᗏ㠃ࡽ 15mm ࡢ㧗ࡉࡢษ᩿㠃࡛࠶ࡾ㸪⧄⥔ࡀᑡ࡞ࡃ㸪⧄⥔ࡢษ᩿㠃ࡀ㛗ࡃ࡞ࡗ࡚࠸ࡿࡶࡢࡀほᐹࡉࢀ㸪ࡇࡢ ⨨࡛ࡣ⧄⥔ࡣᆺᯟᗏ㠃ᑐࡋ࡚ᖹ⾜㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿࠋࡲࡓ㸪ᅗ㸫 D ࡣ᩿ 㠃㧗ࡢ୰ኸ⨨࡛Ỉᖹษ᩿ࡋࡓ᩿㠃࡛࠶ࡾ㸪ᅗ㸫 ࡢᆶ┤᩿㠃ẚ㍑ࡋ࡚ྠ⛬ᗘ௨ୖࡢᐦ ᗘ࡛⧄⥔ࡀᏑᅾࡋ㸪ࡋࡶษ᩿㠃ࡢ᩿㠃✚ࡀᑠࡉ࠸⧄⥔ࡀከࡃほᐹ࡛ࡁ㸪ྍどࣔࢹࣝࢥࣥࢡࣜ ࣮ࢺ࡛ほᐹࡉࢀࡓࡼ࠺⧄⥔ࡀ౪ヨయෆ࡛ᩳࡵ❧ࡗࡓ᪉ྥ㓄ྥࡋ࡚࠸ࡿࡇࢆ♧ࡋ࡚࠸ࡿ ⪃࠼ࡽࢀࡿࠋ௨ୖࡢࡇࡼࡾ㸪ᐇ㝿ࡢ㗰⧄⥔UFC ౪ヨయෆࡢ⧄⥔ࡢ㓄ྥࡢ≧ἣࡣ㸪ྍどࣔ ࢹࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ⧄⥔ࡢ㓄ྥ≧ἣᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿ⪃࠼ࡽࢀࡿࠋ ᡴ ㎸ ࡳ ᆺᯟᗏ㠃 ษḞࡁ ᆺᯟ㠃ἢࡗࡓ᪉ྥ㓄ྥ ᩳࡵୖ᪉ྥ㓄ྥ ⧄⥔ࡀᑡ࡞࠸ ᅗ㸫 㗰⧄⥔ 8)& ࡢ◚᩿㠃
ᡴ㎸ࡳ㠃 ᡴ㎸ࡳ ᆺᯟᗏ㠃 ⧄⥔ࡢษ᩿㠃✚ ⧄⥔ࡢษ᩿㠃✚ ᑠ ᅗ㸫 㗰⧄⥔ 8)& ࡢᆶ┤᩿㠃ࡢ⧄⥔ࡢ㓄ྥ ⧄⥔ᩘᑠ㸪ษ᩿㠃✚ Ѝ ᆺᯟᗏ㠃ᖹ⾜㓄ྥ ⧄⥔ᩘከ㸪ษ᩿㠃✚ᑠ Ѝ 㖄┤᪉ྥ㓄ྥ ᡴ ㎸ ࡳ 15 50 50 130 (b)ᆺᯟᗏ㠃㏆ࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ (a) 㧗ࡉ୰ኸࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ ᅗ㸫 㗰⧄⥔ 8)& ࡢỈᖹ᩿㠃࠾ࡅࡿ⧄⥔ࡢ㓄ྥ
5.3.3 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿྜᡂ⧄⥔ UFC ࡢ᭤ࡆᣲື ୖ㏙ࡢ㏻ࡾ㸪ὶືᡴ㎸ࡳࡢሙྜࡣ⧄⥔ࡣ᭤ࡆ౪ヨయෆ࡛ᆺᯟᗏ㠃ᑐࡋ࡚ᩳࡵୖྥࡁ㓄 ྥࡋ㸪⛣ືᡴ㎸ࡳࡢሙྜࡣ⧄⥔ࡣࣛࣥࢲ࣒㓄ྥࡍࡿഴྥࡀ࠶ࡿࡇࡀ᫂ࡽ࡞ࡗࡓࠋࡑࡇ ࡛㸪ὶືᡴ㎸ࡳ⛣ືᡴ㎸ࡳ࡛〇సࡋࡓ᭤ࡆ౪ヨయࡘ࠸࡚ษࡾḞࡁࡣࡾࡢ 3 Ⅼ᭤ࡆヨ㦂ࢆ⾜ ࠸㸪ᡴ㎸ࡳ᪉ἲ㸪ࡍ࡞ࢃࡕ⧄⥔ࡢ㓄ྥࡀ᭤ࡆᣲືᑐࡋ࡚ࡢࡼ࠺࡞ᙳ㡪ࢆཬࡰࡍࢆPVA ⧄ ⥔ࢆ⏝࠸ࡓUFC ࢆᑐ㇟᳨ウࡋࡓࠋᅗ㸫 ࡣィ ࡉࢀࡓⲴ㔜-㛤ཱྀኚ᭤⥺ࢆ♧ࡍࠋᅗ୰㸪 ⣽⥺ࡣྛ౪ヨయࡢィ ࢹ࣮ࢱ࡛࠶ࡾ㸪ኴ⥺ࡣᖹᆒ᭤⥺࡛࠶ࡿࠋࡦࡧࢀⓎ⏕Ⲵ㔜ࡣᡴ㎸ࡳ᪉ἲ ࢃࡽࡎ㸪ࢇᕪࡣぢࡽࢀ࡞ࡗࡓࠋࡋࡋ㸪ࡑࡢᚋࡢⲴ㔜ࡢቑຍࡣ⛣ືᡴ㎸ࡳࡢ᪉ࡀ㧗 ࡃ㸪᭱Ⲵ㔜ࡣ⛣ືᡴ㎸ࡳࡢ᪉ࡀὶືᡴ㎸ࡳࡼࡾ2 ⛬ᗘ㧗ࡃ࡞ࡗࡓࠋࡇࡢࡼ࠺࡞ᕪࡀ⏕ࡌࡓࡢ ࡣ㸪⧄⥔ࡢ㓄ྥࡼࡿࡶࡢ⪃࠼ࡽࢀ㸪ὶືᡴ㎸ࡳࡢሙྜࡣᅗ㸫 ࡢࡼ࠺◚᩿㠃ᑐࡋ ࡚⧄⥔ࡀᩳࡵ㸪࠶ࡿ࠸ࡣᖹ⾜㓄ྥࡍࡿ⧄⥔ࡀከࡃ࡞ࡿࡓࡵᯫᶫຊࡀ༑ศⓎࡉࢀࡎ㸪⛣ື ᡴ㎸ࡳࡼࡾ⧄⥔ࡀࣛࣥࢲ࣒㓄ྥࡍࡿሙྜࡼࡾᯫᶫຊࡀపୗࡋࡓࡶࡢ⪃࠼ࡽࢀࡿࠋ࡞࠾㸪ࡇ ࡢUFC ࡢᅽ⦰ᙉᗘࡣ 150N/mm2࡛࠶ࡗࡓࠋ 0.1 0.2 0.3 0.4 0.5 5 10 15 20 25 0 Ⲵ㔜 (kN ) 㛤ཱྀኚ (mm) ⛣ືᡴ㎸ࡳ ὶືᡴ㎸ࡳ 1 2 3 4 5 5 10 15 20 25 0 Ⲵ㔜 (kN ) 㛤ཱྀኚ (mm) ⛣ືᡴ㎸ࡳ ὶືᡴ㎸ࡳ (a)ึᮇ㒊ศ (b)య ᅗ㸫 ᡴ㎸ࡳ᪉ἲࡀ␗࡞ࡿሙྜࡢ 39$ ⧄⥔ 8)& ࡢⲴ㔜㸫㛤ཱྀኚ᭤⥺
5.4 ࡲࡵ ᮏ❶࡛ᚓࡽࢀࡓ࡞⤖ᯝࡣ௨ୗࡢ㏻ࡾ࡛࠶ࡿࠋ (1) 㧗྾Ỉᛶ㧗ศᏊᶞ⬡ࢆ⏝࠸ࡓྍどࣔࢹࣝࢥࣥࢡ࣮ࣜࢺࡼࡾ㸪᭤ࡆ౪ヨయ୰ࡢ⧄⥔ࡢ㓄 ྥ≧ἣࢆほᐹࡋࡓࠋࡑࡢ⤖ᯝ㸪౪ヨయࡢ∦➃ࡽࢥࣥࢡ࣮ࣜࢺࢆὶࡋ㎸ࡴ᪉ἲࡢሙྜ㸪⧄⥔ࡣ౪ ヨయࡢ㍈᪉ྥࡣ㓄ྥࡏࡎ㸪ᩳࡵୖ᪉㓄ྥࡍࡿࡇࡀ♧ࡉࢀࡓࠋ (2) 㗰⧄⥔ࢆ⏝࠸ࡓ UFC ᭤ࡆ౪ヨయࢆษ᩿ࡋ࡚⧄⥔ࡢ㓄ྥ≧ἣࢆほᐹࡋࡓ⤖ᯝ㸪ྍどࣔࢹ ࣝࢥࣥࢡ࣮ࣜࢺ࡛ほᐹࡉࢀࡓ㓄ྥࡢᛶ≧ᐃᛶⓗ୍⮴ࡋ࡚࠸ࡿࡇࡀ♧ࡉࢀࡓࠋ (3) ᡴ㎸ࡳ᪉ἲࢆኚ࠼ࡿࡇ࡛౪ヨయ୰ࡢ⧄⥔ࡢ㓄ྥࡀ␗࡞ࡿษḞࡁࡣࡾࡢ᭤ࡆヨ㦂ࢆ⾜ࡗ ࡓ⤖ᯝ㸪ᡴ㎸ࡳ᪉ἲ㸦⧄⥔ࡢ㓄ྥ㸧ࡢ㐪࠸ࡼࡾ᭱Ⲵ㔜ࡀ2 ⛬ᗘኚࡍࡿࡇࡀ♧ࡉࢀࡓࠋ
➨5 ❶ࡢཧ⪃ᩥ⊩
[1] ᶫᮏぶ㸪ᖹ⚽ᖾ㸪㎷ᖾ㸪⏣ᮧ┿㸸2 ㍈ᙉไ⦎ࡾ࣑࢟ࢧෆࡢࢥࣥࢡ࣮ࣜࢺࡢ⦎ΰࡐᶵᵓ ࡢྍど㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥሗ࿌㞟㸪Vol.15㸪No.1㸪pp.1037-1042㸪1993
[2] JCI つ‽㸸ษḞࡁࡣࡾࢆ⏝࠸ࡓ⧄⥔⿵ᙉࢥࣥࢡ࣮ࣜࢺࡢⲴ㔜㸫ኚ᭤⥺ヨ㦂᪉ἲ JCI-S-002-2003
