উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬ᨭ㛫㛗㸶㸮㸮㹫࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻྞᶫࡢタィ࡟㛵ࡍࡿ◊✲୕஭ఫ཭ᘓタ ᰴ   ṇ఍ဨ ᕤ༤ ‫ࢺࢵࢯࣆࣝࢧ ࣥ࣊ۑ‬୕஭ఫ཭ᘓタ ᰴ   ṇ఍ဨ ᕤಟ  ෆᇼ ⿱அ    ୕஭ఫ཭ᘓタ ᰴ   ṇ఍ဨ ᕤ༤  Ọඖ ┤ᶞ    ୕஭ఫ཭ᘓタ ᰴ   ṇ఍ဨ ᕤ༤  ᫓᪥ ᫛ኵ    
Abstract㸸In the design of a large span bridge, a hybrid bridge which combines both suspension and cablestayed structure inherently comes with higher towers in comparison to the conventional suspension bridge.
Consequently, the angular change of the main cable at the tower saddle could be larger which causes
increasing secondary stress in the main cable and the cable becomes more critical in fatigue. Therefore, inthis study, to deal with the secondary stress in the main cable and enhance the aerodynamic stability, theauthors aim to develop a 800 m span of concrete butterfly web girder bridge which is a hybrid between anextradosed and a suspension structure. In this paper, three different extradosed spans of the proposed
hybrid bridge are comparatively designed and discussed to confirm their structural behaviors. It isconfirmed that this new type of hybrid bridge can be designed, and moreover it is found that the systemwith extradosed span to main span ratio 61% is the most efficient system than others.
Key words㸸 Extradosed and suspension hybrid bridge, Butterfly web girder, Secondary stress㸯㸬ࡣࡌࡵ࡟ࣁ࢖ࣈࣜࢵࢻᩳᙇྞᶫࡣྞᶫࡢࢣ࣮ࣈࣝࢩࢫࢸ࣒࡟ᩳࢣ࣮ࣈ࡛ࣝ⿵๛ࡍࡿࡇ࡜࡛㸪ࣈࣝࢵࢡࣜࣥᶫ࡛᥇⏝ࡉࢀࡓࡼ࠺࡟⪏㢼Ᏻᐃᛶࢆྥୖࡉࡏࡿࡇ࡜ࡀᚑ᮶ࡼࡾᗈࡃ▱ࡽࢀ࡚࠸ࡿ1㸧ࠋࡋ࠿ࡋ㸪㉸㛗኱ࢫࣃࣥᶫᱱࡢタィ࡟࠾࠸࡚㸪ࣁ࢖ࣈࣜࢵࢻᩳᙇྞᶫࢆ᥇⏝ࡍࡿሙྜ㸪୍⯡ⓗ࡟ྞᶫࡼࡾࡶ㧗࠸୺ሪࡀ㐺⏝ࡉࢀ࡚࠸ࡿ2㸧ࠋࡑࡢ⤖ᯝ㸪ሪ㡬࡛ࡢ୺ࢣ࣮ࣈࣝࡢ᭤ࡆゅᗘࡀ኱ࡁࡃ࡞ࡾ㸪ᯫタ㏵୰࠾ࡼࡧάⲴ㔜స⏝᫬ࡢࢣ࣮ࣈࣝࢩࢫࢸ࣒ࡢ኱ࡁ࡞ኚᙧ࡟ࡼࡾ㸪୺ࢣ࣮ࣈࣝ࡟2ḟᛂຊࡀ኱ࡁࡃⓎ⏕ࡍࡿࠋࡑࡢࡓࡵ㸪2ḟᛂຊࢆ⪃៖ࡋࡓࢣ࣮ࣈࣝ⑂ປ࡞࡝ࡢᏳ඲ᛶࡀᠱᛕࡉࢀ㸪ᐇ㦂➼࡟ࡼࡿ☜ㄆࡀᚲせ࡜ࡉࢀ࡚࠸ࡿ3㸧ࠋ୍᪉㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻᵓ㐀࡛ࡣ㸪᱆ࡢ๛ᛶࢆ኱ࡁࡃࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪୺ሪࢆపࡃࡍࡿࡇ࡜ࡀྍ⬟࡛࠶ࡿࠋࡲࡓ㸪୺᱆࡟ࣂࢱࣇࣛ࢖࢙࢘ࣈࢆ㐺⏝ࡍࡿࡇ࡜࡟ࡼࡗ࡚㸪ୖ㒊ᕤᵓ㐀ࡢ㔜㔞ࢆ㍍ῶ࡛ࡁࡿ࡯࠿㸪㛤ཱྀ᩿㠃ࢆ᭷ࡍࡿ୺᱆ᵓ㐀ࡢࡓࡵ⪏㢼Ᏻᐃᛶࡀࡼࡾྥୖࡍࡿ4㸧ࠋᮏ◊✲࡛ࡣ㸪୺ࢣ࣮ࣈࣝ2ḟᛂຊࡢపῶ࠾ࡼࡧ⪏㢼Ᏻᐃᛶࡢྥୖࢆᅗࡗࡓࢥࣥࢡ࣮ࣜࢺࡢ㉸㛗኱ࢫࣃࣥᶫᱱࡢ㛤Ⓨࢆ┠ⓗ࡜ࡋ࡚㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻᵓ㐀࠾ࡼࡧྞᵓ㐀ࢆ⤌ྜࡏࡓᨭ㛫㛗800mࡢ࢚ࢡࢫࢺࣛࢻ࣮ࢬྞᶫࢆᥦ᱌ࡋ㸪ᵓ㐀ࡢ᳨ウࢆ⾜ࡗࡓࠋᮏㄽᩥࡣ㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢ␗࡞ࡗࡓ3ࡘࡢᵓ㐀ࢆẚ㍑ࡋ㸪ᵓ㐀ࡢᐇ⌧ᛶࢆ☜ㄆࡍࡿ࡜࡜ࡶ࡟ᩘ㔞࡟ࡼࡿྛᵓ㐀ࡢホ౯ࢆ⾜ࡗࡓࡶࡢ࡛࠶ࡿࠋ㸰㸬࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻྞᶫࡢᵓ㐀ᴫせ㸰㸯 ୺᱆࠾ࡼࡧ୺ሪࡢᙧ≧ ᥦ᱌ࡍࡿ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻྞᶫࡣ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻᵓ㐀࠾ࡼࡧྞᵓ㐀ࡢࣁ࢖ࣈࣜࢵࢻᶫᱱ࡛㸪ᅗ࠾ࡼࡧᅗ࡟♧ࡍࡼ࠺࡟㸪᭷ຠᖜဨ30mࢆ᭷ࡍࡿ2㠃ྞࡾࡢ㉸㛗኱㐨㊰ᶫ࡜ࡋࡓࠋ୺᱆ࡣ㸪ࢥࣥࢡ࣮ࣜࢺ〇ࡢࣂࢱࣇࣛ࢖࢙࢘ࣈ3ᐊ⟽᱆࡛㸪᱆㧗ࡣ7m࡜ࡋࡓࠋ୺ሪࡢ㧗ࡉࡣ㸪୍⯡ⓗ࡞ྞᶫ࡜ྠ⛬ᗘ࡜࡞ࡿࡼ࠺࡟㸪୰ኸᨭ㛫㛗ࡢ1/8࡜࡞ࡿ100m࡜ࡋࡓࠋ୺ࢣ࣮ࣈࣝࡢࢧࢢẚࡣ1/8.89࡜ࡋࡓࠋ

〔論文〕

উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕

D ᩿㠃ᅗ


E ഃ㠃ᅗ D ṇ㠃ᅗ    E ഃ㠃ᅗᅗ୺᱆ࡢᙧ≧㸦༢఩㸸PP㸧ᅗ୺ሪࡢᙧ≧㸦༢఩㸸PP㸧㸰㸰 ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢタᐃ⾲ タィ᮲௳㡯┠ ᩥ⊩1㸧࡟ࡼࢀࡤ㸪ࣁ࢖ࣈࣜࢵࢻᩳᙇྞᶫ࡟࠾࠸
࡚ࡣ㸪ഃᚄ㛫㛗ࡀ୰ኸᚄ㛫ࡢ25㹼30㸣⛬ᗘ࡜ẚ㍑ⓗ▷࠸ࡢࡀዲࡲࡋ࠸ᵓ㐀ࢩࢫࢸ࣒࡛࠶ࡿࠋ௒ᅇࡣᅗ࡟♧ࡍࡼ࠺࡟㸪୰ኸᨭ㛫㛗ࢆ800m୍ᐃ࡜ࡋ㸪࢚ࢡ୰ኸᨭ㛫᭷ຠᖜဨࢫࢺࣛࢻ࣮ࢬࢻ༊㛫㛗࡜୰ኸᚄ㛫㛗࡜ࡢẚ⋡㸦௨⦪᩿໙㓄ᚋ㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡࡜࿧ࡪ㸧ࢆኚ໬ࡉࡏ㸪ࡑࢀࡒࢀ79%㸪61%࠾ࡼࡧ43%ࡢ3ࡘࡢ␗࡞ࡗࡓάⲴ㔜タィ ᗘᵓ㐀ࢆ᳨ウࡋẚ㍑ࢆ⾜ࡗࡓࠋ࡞࠾㸪࢚ࢡࢫࢺࣛࢻ࣮

ᗘኚ໬ࢬࢻ༊㛫ࡣᙇฟࡋᯫタࢆ᝿ᐃࡋ㸪ഃᚄ㛫㛗ࡣ୺ሪ࡟ᑐࡋ࡚ᑐ⛠࡜࡞ࡿࡼ࠺࡟タᐃࡋࡓࠋ

Ᏻ඲⋡ഃᚄ㛫୰ኸᚄ㛫ࢥࣥࢡ࣮ࣜࢺ
ࢣ࣮ࣈࣝ୺ࢣ࣮ࣈࣝ
ࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝ
ᩳᮦ

タィ್
800 m
30.0 m3%
1.5% ᨺ≀⥺
B άⲴ㔜
20Υ
s15Υ
s27Υ
3.0
3.5
2.5

㸱㸬タィࡢ᳨ウᴫせ㸱㸯 タィ᮲௳࠾ࡼࡧ౑⏝ᮦᩱ タィ᮲௳࠾ࡼࡧ౑

⏝ᮦᩱࡣ㸪㐨㊰ᶫ♧౑⏝ᮦᩱ᪉ ᭩ 5 㸧 ࠾ ࡼ ࡧ PC ᩳࢥࣥࢡ࣮ࣜࢺ

ᙇᶫ࣭࢚ࢡࢫࢺࣛࢻ
࣮ࢬࢻᶫタィ᪋ᕤつ‽6㸧࡟ᚑ࠸㸪ࡑࢀࡒࢀ⾲࠾ࡼࡧ⾲࡟
♧ࡍࠋ

୺᱆
୺ሪ

୺ࢣ࣮ࣈࣝ
ࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝ
ᩳᮦ
PC 㗰ᮦ
㕲➽

⾲ ౑⏝ᮦᩱྡ⛠ᙉᗘ㸦N/mm2㸧
f’ck = 60㧗ᙉᗘ
f’ck = 40㧗ᙉᗘ
fpu = 1770
PWS-127(ȭ5)
fpu = 1770
NEW-PWS(ȭ7)
fpu = 1860
SWPR7B(ȭ15.2)
SWPR7B(12S15.2) fpu = 1860
SD 345fsy = 345㔜㔞㸦kN/m3㸧
24.5
24.5
77.0
77.0
77.0
77.077.0উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬D ᵓ㐀A㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧E ᵓ㐀B㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧F ᵓ㐀C㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧ᅗ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ࡢ㐪࠸࡟ࡼࡿྛᵓ㐀ࡢഃ㠃ᅗ㸱㸰 ゎᯒࣔࢹࣝ࠾ࡼࡧᯫタࡢᡭ㡰 ᙎᛶᖹ㠃㦵⤌ࡳࣔࢹࣝࢆ⏝࠸࡚㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ࢆኚ໬ࡉࡏ࡚ࡑࢀࡒࢀᴫ␎᳨ウࢆ⾜ࡗࡓࠋ᪋ ᕤ ࡢ ᡭ 㡰 ࡣ 㸪 ᅗ  ࡟ ♧ ࡍ ࡼ ࠺ ࡟D ࢫࢸࢵࣉ㸯㸸࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢᙇฟࡋ᪋ᕤ

㸦1㸧࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢᙇฟࡋ᪋ᕤ㸪㸦2㸧ࣉࣞ࢟ࣕࢫࢺ〇᱆ࡢྞୖࡆ࡟ࡼࡿྞ༊㛫ᯫタ㸪ࡢ㡰࡟⾜࠺ࡇ࡜ࢆ᝿ᐃࡋࡓࠋࡲࡓ㸪ྞ༊㛫ᯫタE ࢫࢸࢵࣉ㸰㸸ࣉࣞ࢟ࣕࢫࢺ〇᱆ࡢྞୖࡆ࡟ࡼࡾ୺ሪ࡟Ⓨ⏕ࡍࡿ᭤ࡆ࣮࣓ࣔࣥ
ࢺࡣணࡵࢭࢵࢺࣂࢵࢡࡋࡓࢧࢻࣝࢆ3& ⥭ᙇ⛣ືࡍࡿࡇ࡜࡛పῶࡍࡿࡇ࡜࡜ࡋ㸪୺ሪࡢタィ࡟ࡣ⪃៖ࡋ࡞࠿ࡗࡓࠋ᭱F ࢫࢸࢵࣉ㸱㸸࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ࠾ࡼࡧྞ༊㛫ࡢ୍య໬ᚋ࡟㸪PC㗰ᮦ࡟ࡼࡾ࢚ࢡࢫࢺࣛࢻ࣮ᅗ ゎᯒࣔࢹࣝ࠾ࡼࡧᯫタࡢ࢖࣓࣮ࢪᅗ〔論文〕উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕

ࢬࢻ༊㛫࠾ࡼࡧྞ༊㛫ࡢ᱆ࢆ୍య໬ࡍࡿࠋ࡞࠾㸪୺ࢣ࣮ࣈࣝࡢ᭤⥺ࡣᘧ㸦1㸧࡟ࡼࡾ㸪⟬ฟࡋࡓ1㸧ࠋ‫=ݕ‬െ௞೘ெ೘ (௟೘ /ଶ)‫ܯ‬௠ (‫                   )ݔ‬㸦1㸧ࡇࡇ࡛㸪݈௠ 㸪݇௠ 㸪‫ܯ‬௠ (‫ࢀࡒࢀࡑࡣ)ݔ‬୰ኸᚄ㛫㛗㸪୺ࢣ࣮ࣈࣝࡢࢧࢢ࠾ࡼࡧ୺ࢣ࣮ࣈࣝ࡟స⏝ࡍࡿṚⲴ㔜࡟ࡼࡿ࣮࣓ࣔࣥࢺ᭤⥺࡛࠶ࡿࠋ㸲㸬タィࡢ᳨ウ⤖ᯝ㸲㸯 ୺᱆ࡢタィ⾲ ୺᱆ࢥࣥࢡ࣮ࣜࢺࡢチᐜᛂຊᗘ [N/mm2]ᅗ࡟࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ࡢ␗࡞ࡗࡓྛ

ṚⲴ㔜᫬
ᘬᙇഃ
ᅽ⦰ഃ
018ᵓ㐀ࡢ୺᱆࡟స⏝ࡍࡿ᭤ࡆ࣮࣓ࣔࣥࢺ࠾ࡼࡧᛂຊᗘ
ࡢ⤖ᯝࢆ♧ࡍࠋࡇࢀࡽࡢ⤖ᯝ࠿ࡽ㸪୺᱆ࡢᛂຊᗘࡣ

୺᱆᭤ࡆ࣮࣓ࣔࣥࢺ >N1P@ ୺᱆ᛂຊᗘ >1PP@-500,000

20.0
15.0
10.0
5.0
0.0
-5.0

-250,0000
250,000
500,000

DD+Lmax

D ıuD+Lmin

D ılάⲴ㔜᫬ᘬᙇഃᅽ⦰ഃ
218

D+Lmax ılD+Lmin ıl

D+Lmax ıl

D+Lmin ıl

D+Lmax ıl

D+Lmin ılD ᵓ㐀A㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧     ୺᱆᭤ࡆ࣮࣓ࣔࣥࢺ >N1P@  ୺᱆ᛂຊᗘ >1PP@-500,000

20.0-250,000

15.0
10.00

5.0

250,000
500,0000.0
D

D+LmaxD+Lmin-5.0

D ıu

D ılE ᵓ㐀B㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧     ୺᱆᭤ࡆ࣮࣓ࣔࣥࢺ >N1P@   ୺᱆ᛂຊᗘ >1PP@-500,000

20.0
15.0-250,000

10.00

5.0

250,000
500,000

0.0
D

D+LmaxD+Lmin-5.0
D ıu

D ılF ᵓ㐀C㸦࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡㸸/('/ 㸧ᅗ ྛᵓ㐀ࡢ୺᱆ࡢ᭤ࡆ࣮࣓ࣔࣥࢺ࠾ࡼࡧᛂຊᗘউঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬࡝ࡢᵓ㐀࡟࠾࠸࡚ࡶࡍ࡭࡚⾲࡟♧ࡍチᐜ್ࢆ‶㊊〔論文〕

⾲ྛᵓ㐀ࡢᚲせ࡞ᗋ∧ཌ [mm]ࡋ㸪ᥦ᱌ࡋࡓᵓ㐀ࡣᐇ⌧ྍ⬟࡜⪃࠼ࡽࢀࡿࠋࡓࡔࡋ㸪ᅗ࡟♧ࡍࡼ࠺࡟㸪ṚⲴ㔜᫬࡟ࡣྞ༊㛫࡟ᑐࡋ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢ୺᱆࡟స⏝ࡍࡿ㍈ຊࡀ኱ࡁ࠸ࡓࡵ㸪ྛᵓ㐀࡟࠾ࡅࡿ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ࡢᗋ∧ཌࡣ⾲࡟♧ࡍ್ࡀᚲせ࡛࠶ࡗࡓࠋྛᵓ㐀ୖᗋ∧ཌୗᗋ∧ཌᵓ㐀 A500㸦ᨭⅬ㒊㸧

1200㸦ᨭⅬ㒊㸧ᵓ㐀 B300㸦඲༊㛫㸧

400㸦඲༊㛫㸧ᵓ㐀 C300㸦඲༊㛫㸧

250㸦඲༊㛫㸧㸲㸰 ᩳᮦࡢタィ ᩳᮦࡢタィࡣ㸪PCᩳᙇᶫ࣭࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻᶫタィ᪋ᕤᇶ‽6㸧࡟ᇶ࡙࠸ࡓࠋᩳᮦࡢチᐜ್ࡣ㸪άⲴ㔜࡟ࡼࡿᛂຊኚືࢆୖ㝈130N/mm2࡟ࡋ㸪0.4fpu࡛タᐃࡋࡓࠋᅗ࠿ࡽศ࠿ࡿࡼ࠺࡟㸪࡝ࡢᵓ㐀࡟࠾࠸࡚ࡶഃᚄ㛫࡛ࡢᩳᮦᛂຊኚືࡀ㠀ᖖ࡟኱ࡁࡃ࡞ࡗࡓࠋഃᚄ㛫ࡢ୰㛫ᶫ⬮㏣ຍ࡞࡝࡟ࡼࡾ㸪ᩳᮦᛂຊኚ
ືࢆᢚ࠼ࡽࢀࢀࡤ㸪ࡼࡾྜ⌮ⓗ࡞ᵓ㐀ࡀᐇ⌧࡛ࡁࡿ࡜⪃࠼ࡽࢀࡿࠋ

ᵓ㐀A

  

ᵓ㐀B ᵓ㐀C  ṚⲴ㔜᫬ࡢ୺᱆㍈ຊ>N1@άⲴ㔜࡟ࡼࡿᩳᮦࡢᛂຊኚື >1PP@

600000130500000110

4000009030000070200000100000

50030
ᵓ㐀$

ᵓ㐀%

ᵓ㐀&ᵓ㐀$

ᅗ ṚⲴ㔜᫬ࡢ୺᱆࡟స⏝ࡍࡿ㍈ຊᅗᵓ㐀%ᵓ㐀&ᅗ άⲴ㔜࡟ࡼࡿᩳᮦࡢᛂຊኚືᅗ㸲㸱 ୺ࢣ࣮ࣈࣝ࠾ࡼࡧࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝࡢタィ ྛᵓ㐀ࡢ୺ࢣ࣮ࣈࣝ࠾ࡼࡧࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝࡢᛂຊᗘࢆ⾲࡟♧ࡍࠋ୺ࢣ࣮ࣈࣝࡢᵓᡂࡣᵓ㐀A㸪B
࠾ࡼࡧC࡟ᑐࡋ࡚㸪ࡑࢀࡒ
ࢀPWS-127ࢆ160ᮏ㸪192ᮏ
࠾ࡼࡧ274ᮏ࡜࡞ࡗࡓࠋࣁ
࣮ࣥ࢞ࢣ࣮ࣈࣝࡣᵓ㐀B࠾ࡼ ࡧ ᵓ 㐀 C ࡛ ࡣNEW-PWS
㸦7‫׎‬283㸧࡛࠶ࡿࡀ㸪ᵓ㐀Aࡣୗᗋ∧ཌࡀཌࡃ࡞ࡿࡓ
ࡵ 㸪 NEW-PWS 㸦 7 ‫׎‬337 㸧
ࡀᚲせ࡜࡞ࡗࡓࠋ⾲ ୺ࢣ࣮ࣈࣝ࠾ࡼࡧࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝࡢᛂຊᗘ
ᵓ㐀 A ᵓ㐀 B ᵓ㐀 C
ྛᛂຊᗘ㸦N/mm2㸧ྛࢣ࣮ࣈࣝ
160 ᮏ 192 ᮏ 274 ᮏࢣ࣮ࣈࣝᵓᡂ㸦PWS-127㸧
483.6
583.8
571.1
᭱኱ᛂຊᗘ
୺ࢣ࣮ࣈࣝ
58.3
48.83
38.2
άⲴ㔜࡟ࡼࡿᛂຊኚື
590.0
チᐜᛂຊᗘࢣ࣮ࣈࣝᵓᡂ㸦NEW-PWS㸧 7‫׎‬337 7‫׎‬283 7‫׎‬283
435.8
494.4
478.5
᭱኱ᛂຊᗘ
ࣁ࣮ࣥ࢞
41.7
51.855.6ࢣ࣮ࣈࣝάⲴ㔜࡟ࡼࡿᛂຊኚື
505.7
チᐜᛂຊᗘ
উঞ५ॺঞ५ॺ॥থॡজ‫৾ੵॺش‬ভ‫ؙ‬ਸ਼їћ৚३থএ४क़঒૛ધૐ‫ق‬їѕіќফіѕা‫ك‬〔論文〕

㸲㸲 ୺ሪࡢタィ ྛᵓ㐀࡟࠾ࡅࡿ୺ሪࡢタィ⤖ᯝࢆ⾲࡟♧ࡍࠋࡇࡢ⤖ᯝ࠿ࡽ㸪࡝ࡢᵓ㐀࡟࠾࠸࡚ࡶᥦ᱌ࡋࡓ୺ሪࡀタィྍ⬟࡜࠸࠼ࡿࠋ࡞࠾㸪ྞ༊㛫ᯫタ࡟ࡼࡿ୺ሪ࡟Ⓨ⏕ࡍࡿ᭤ࡆ࣮࣓ࣔࣥࢺࡣ
ࢭࢵࢺࣂࢵࢡ࡟ࡼࡿపῶࢆ⾜࠸㸪୺ሪ㒊ᮦࡣᅽ⦰≧ែ࡜࡞ࡿࡓࡵ㸪㕲➽⾲ ୺ሪࡢ㕲➽ᛂຊᗘ
ᛂຊᗘ㸦N/mm2㸧 ᵓ㐀 A ᵓ㐀 BタィⲴ㔜
9.7
9.1
ߪԢ௖ (14.0)*
ṚⲴ㔜᫬
145.7
136.0
ߪԢ௦ (200) *10.5
9.7
ߪԢ௖ (14.0) *
άⲴ㔜᫬
*
156.7
145.0
ߪԢ௦ (200)
10.9
10.2
ߪԢ௖ (16.1) *
ᗘኚ໬᫬
163.0
153.0
ߪԢ௦ (200) **ᣓᘼෆࡣチᐜᛂຊᗘࢆ♧ࡍࠋ⾲ ྛᵓ㐀ࡢᩘ㔞ࡢẚ㍑

ࡢᅽ⦰ᛂຊᗘࢆ♧ࡋ࡚࠸ࡿࠋࡢ␗࡞ࡿྛᵓ㐀ࡢᩘ㔞ࢆ⾲࡟༢఩

ᵓ㐀 Aᵓ㐀 Bᵓ㐀 Cࢥࣥࢡ࣮ࣜࢺ㸦୺᱆ࡢࡳ㸧୺ࢣ࣮ࣈࣝࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝྛࢣ࣮ࣈࣝ ᩳᮦPC 㗰ᮦྜィ

m3
ton
ton
ton
ton
ton

54,990
9,568
31
7,352
300
17,252

38,296
10,411
61
3,729
349
14,551

32,06813,495
120
2,132
469
16,216

୰ኸᨭ㛫㞟ィ ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ྛᮦᩱᶫᱱ඲㛗㞟ィ

㸲㸳 ᩘ㔞ࡢẚ㍑

ࢥࣥࢡ࣮ࣜࢺ㸦୺᱆ࡢࡳ㸧୺ࢣ࣮ࣈࣝࣁ࣮ࣥ࢞ࢣ࣮ࣈࣝ
ྛࢣ࣮ࣈࣝ ᩳᮦPC 㗰ᮦ
ྜィ

m3
ton
ton
ton
ton
ton

29,862
5,206
31
3,641
231
9,109

23,302
6,257
61
1,844
294
8,456

22,116
8,944
120
1,052
348
10,464♧ࡍࠋ࡞࠾㸪ྛᵓ㐀ࡢᶫ㛗ࡀ␗࡞ࡿࡓࡵ㸪⪃ᐹࡣ800m୰ኸᚄ㛫ࡢࡳ࡛㞟ィࡍࡿᩘ㔞ࢆẚ㍑ࡍ
ࡿࠋࡇࡢᩘ㔞ࡢ⤖ᯝ࠿ࡽ࢚ࢡࢫ
ࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ࡀ኱ࡁ࠸ᵓ㐀Aࡢࢥࣥࢡ࣮ࣜࢺᩘ㔞ࡀ௚ࡢ

ᵓ㐀 C
9.5
142.1
10.1
150.9
10.4
155.2

ᵓ㐀ࡢᩘ㔞ࡼࡾࡶⴭࡋࡃከ࠸ࡇ࡜ࡀศ࠿ࡿࠋࡇࢀࡣᵓ㐀Aࡢᗋ∧ཌࡀ࠿࡞ࡾཌࡃ࡞ࡗࡓࡓࡵ࡛࠶ࡿࠋࡲࡓ㸪ྛࢣ࣮ࣈࣝࡢᩘ㔞ࡢྜィࡣ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫ẚ⋡ࡀ61%࡛࠶ࡿᵓ㐀Bࡀࡶࡗ࡜ࡶᑡ࡞࠸ࡇ
࡜ࡀศ࠿ࡿࠋࡋࡓࡀࡗ࡚㸪᳨ウࡍࡿ3ࡘᵓ㐀ࡢ୰࡛࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫㛗ࡀ୰㛫࡟࠶ࡿᵓ㐀Bࡀࡶࡗ࡜ࡶዲࡲࡋ࠸ᵓ㐀࡛࠶ࡿ࡜࠸࠼ࡿࠋ㸳㸬ࡲ࡜ࡵ ᮏ◊✲࡛ࡣ୺ࢣ࣮ࣈࣝ2ḟᛂຊࡢపῶ࠾ࡼࡧ⪏㢼Ᏻᐃᛶࡢྥୖࢆᅗࡗࡓࣂࢱࣇࣛ࢖࢙࢘ࣈࡢ࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻྞᶫࢆᥦ᱌ࡋ㸪ᐇ⌧ᛶࡢ᳨ウࢆ⾜ࡗࡓࠋࡲࡓ㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫㛗࡜୰ኸᚄ㛫㛗࡜ࡢẚ⋡ࢆኚ໬ࡉࡏ㸪3ࡘࡢ␗࡞ࡗࡓᵓ㐀ࡢᴫ␎タィ࠾ࡼࡧᩘ㔞ࢆẚ㍑ࡋࡓࠋࡑࡢ⤖ᯝ㸪ᥦ᱌ࡋࡓᶫᱱࡣ༑ศᐇ⌧ྍ⬟࡛࠶ࡿ࡜☜ㄆ࡛ࡁࡓࠋࡲࡓ㸪ᩘ㔞ẚ㍑࠿ࡽ㸪࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻྞᶫ࡟ࡣ୰ኸᨭ㛫㛗࡟ᑐࡋ࡚᭱㐺࡞࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻ༊㛫㛗ࡀ࠶ࡿࡇ࡜ࡀศ࠿ࡗࡓࠋࡓࡔࡋ㸪௒ᅇࡢᵓ㐀ࡣάⲴ㔜࡟ࡼࡿഃᚄ㛫ᩳᮦᛂຊࡢኚືࡀ㠀ᖖ࡟኱ࡁ࠸ࡓࡵ㸪ഃᚄ㛫ᩳᮦࡢᛂຊኚືࢆᢚ࠼ࡿࡓࡵࡢᑐ⟇ࡸ㸪ࢥࣥࢡ࣮ࣜࢺ㒊ᮦ࡛ࡣ㔜せ࡛࠶ࡿࢡ࣮ࣜࣉ࣭஝⇱཰⦰ࡢၥ㢟ࢆ௒ᚋࡢㄢ㢟࡜ࡋ࡚㸪᳨ウࡍࡿᚲせࡀ࠶ࡿ࡜⪃࠼࡚࠸ࡿࠋཧ⪃ᩥ⊩㸯㸧Gimsing, N. J. and Georgakis, C. T.㸸 Cable supported bridges, John-Wiley, West Sussex, UK, 2012.
㸰㸧౛࠼ࡤ㸪Highly-strung, Project reports, Bridge Design & Engineering, Issue no.80, Third quarter 2015.
㸱㸧౛࠼ࡤ㸪Lee, M.࡯࠿㸸 Angular Change and Secondary Stress in Main Cables of Suspension Bridges,
International Journal of Steel Structures 16(2), 2016, pp. 573-585.
㸲㸧᫓᪥㸸Multi-span extradosed bridges, Proceeding of Multi-Span Large Bridges, pp.67-82, 2015.7.
㸳㸧᪥ᮏ㐨㊰༠఍㸸㐨㊰ᶫ♧᪉᭩࣭ྠゎㄝ㸪2014ᖺ3᭶㸴㸧ࣉࣞࢫࢺࣞࢫࢺࢥࣥࢡ࣮ࣜࢺᕤᏛ఍㸸PCᩳᙇᶫ࣭࢚ࢡࢫࢺࣛࢻ࣮ࢬࢻᶫタィ᪋ᕤつ‽, 2009ᖺ4᭶