日本建築学会構造系論文集 第82巻 第735号，
745-751，2017年5月
J. Struct. Constr. Eng., AIJ, Vol. 82 No. 735, 745-751, May, 2017
DOI http://doi.org/10.3130/aijs.82.745【カテゴリーⅠ】


頭付きスタッドを用いた押抜き試験のせん断耐力に関する文献研究㢌௜ࡁࢫࢱࢵࢻࢆ⏝࠸ࡓᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊ࡟㛵ࡍࡿᩥ⊩◊✲スラブ形状・破壊種別とスタッド軸径に着目した包括的かつ俯瞰による分析
ࢫࣛࣈᙧ≧࣭◚ቯ✀ู࡜ࢫࢱࢵࢻ㍈ᚄ࡟╔┠ࡋࡓໟᣓⓗ࠿ࡘಠ▔࡟ࡼࡿศᯒ
A COMPREHENSIVE REVIEW OF THE LITERATURE
A COMPREHENSIVEREVIEW
OF THE LITERATURE
ON SHEAROFSTUDS
PUSH-OUT TESTS OF
ON SHEAR STRENGTH
OF PUSH-OUTTESTSSTRENGTH
OF HEADEDHEADED STUDS
Comprehensive and holistic analysis focusing on the type of slab, failure mode, and stud diameter
Comprehensive and holistic analysis focusing on the type of slab, failure mode, and stud diameter

平間 ちひろ＊，石 川 孝 重＊＊，久 木 章 江＊＊＊，グエン ミンハイ＊＊＊＊**㸪 ஂᮌ ISHIKAWA,
Chihiro*㸪▼ᕝ
HIRAMA,
Akie HISAGI ****ᖹ㛫 ࡕࡦࢁ
Ꮥ㔜Takashige❶Ụ***㸪 ࢢ࢚࣭࣑ࣥࣥࣁ࢖
and
MinhhaiNGUYEN
Chihiro HIRAMA Takashige ISHIKAWA Akie HISAGI and Minhhai NGUYEN

We collected push-out test results from researches, and analyzed characteristics of shear strength of headed stud from 1002 results,
using headed stud diameter, types of slab, and failure modes. As a result, the shear strength of headed stud in solid slab are
substantially equal the products of headed stud tensile strength and total cross-sectional area of shaft component of headed stud.
Some of the specimens having steel deck slab shows different tendency. The shear strength of more than 25mm diameter of headed
stud in solid slab has a tendency that strength gradually decrease in a response to becoming larger diameter.

Keywords : Headed Stud, Push-out Test, Shear Strength, Large Diameter Headed Stud, Headed Stud Strength, Concrete Strength㢌௜ࡁࢫࢱࢵࢻ㸪ᢲᢤࡁヨ㦂㸪ࡏࢇ᩿⪏ຊ㸪ኴᚄࢫࢱࢵࢻ㸪ࢫࢱࢵࢻᙉᗘ㸪ࢥࣥࢡ࣮ࣜࢺᙉᗘ
㸯㸬ࡣࡌࡵ࡟

㸰㸬ヨ㦂⤖ᯝࡢᩚ⌮⌧ᅾከࡃࡢᘓ⠏≀ࡸᶫᱱ࡞࡝࡛㕲㦵ᱱ࡜ࢥࣥࢡ࣮ࣜࢺᗋ∧ࢆ⥭⤖ ᩥ⊩཰㞟ࡍࡿ㝿࡟㢌௜ࡁࢫࢱࢵࢻ㸦௨ୗࠊࢫࢱࢵࢻ࡜⛠ࡍࡿ㸧ࡀ౑⏝ࡉࢀࡿࠋ ࢫࢱࢵࢻࢆ⏝࠸ࡓᢲᢤࡁヨ㦂ࢆ⾜࠸ࠊࡏࢇ᩿⪏ຊࡀㄞࡳྲྀࢀࡿヨ2011 ᖺࡢ JIS B 1198 ࡢᨵゞ࡛ࠊ᪂ࡓ࡟㍈ᚄ 10mm ࡜ 25mm ࡀ㏣㦂⤖ᯝࢆᅜෆእࡢᩥ⊩࠿ࡽ཰㞟ࡋࡓࠋ⤖ᯝࠊ90 ⦅ࡢᩥ⊩࠿ࡽ 1391

ຍࡉࢀࡓࡀࠊࡑࡢຊᏛⓗ≉ᛶ࡟ࡘ࠸࡚༑ศ࡞᳨ドࡀ࡞ࡉࢀ࡚࠸ࡿ࡜

యࡢヨ㦂⤖ᯝࢆᚓࡓࠋ඲ヨ㦂⤖ᯝࢆࢫࣛࣈᙧ≧࡜◚ቯ✀ูࡢ⤌ࡳྜࡣ࠸࠼࡞࠸ࠋ

ࢃࡏ࡟ࡼࡗ࡚⾲㸯࡟ศ㢮ࡋࡓࠋ୍⯡࡟ࠊࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊࡣᢲᢤࡁヨ㦂࡟ࡼࡗ᳨࡚ドࡉࢀࡿࡇ࡜ࡀከ࠸ࡀࠊࡇࡢሙྜࡣ≉ᐃࡢ᮲௳ୗ࡛ࡢᐇ㦂࡟࡞ࡿࡓࡵヨ㦂᮲௳࡟⤖ᯝࡀ኱ࡁࡃᙳ㡪ࢆཷࡅࡿࡇ࡜࡟࡞ࡿࠋࡇࢀࡲ࡛࡟㍈ᚄ 10࣭⾲㸯 ཰㞟ࡋࡓ◚ቯ✀ู࡜ࢫࣛࣈᙧ≧࡟ࡼࡿヨ㦂యᩘ

ἋἑἕἛ
ᄊૺ
ᵑᵐᵒ

ἅὅἁἼὊἚ
ᄊْ
ᵑᵐᵗ

ᵏᵖ

ᵑᵔᵖ

ᵏᵎᵑᵗ

ከࡃࡢᢲᢤࡁヨ㦂࡟㛵ࡍࡿ◊✲ࢆᩚ⌮ࡋࠊྛࠎࡢㄽᩥࡢヨ㦂⤖ᯝࢆἙἕỿἩἾὊἚ˄
ἋἻἨ

ᵓᵎ

ᵏᵑᵔ

ᵎ

ᵗᵗ

ᵐᵖᵓ

ໟᣓⓗ࠿ࡘಠ▔ࡍࡿࡇ࡜࡛ࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊ࡟㛵ࡍࡿศᯒࢆヨ

Ẹỉ˂

ᵗ

ᵓᵕ

ᵏ

ᵎ

ᵔᵕ

ࡳࡓࠋ

ӳᚘ

ᵑᵖᵑ

ᵓᵐᵐ

ᵏᵗ

ᵒᵔᵕ

ᵏᵑᵗᵏ

25mm ࡢᐇ㦂ࡣᑡ࡞࠸ࡶࡢࡢࠊ௚ࡢ㍈ᚄ࡛ࡢᢲᢤࡁヨ㦂࡟ࡼࡿࢫࢱ
ࢵࢻࡢຊᏛⓗ≉ᛶࢆ◊✲ࡋ࡚࠸ࡿᩥ⊩ࡣከࡃ࠶ࡿࠋࡑࡇ࡛ࠊ᪤ ࡢ

ẅẅẅᴾẅᴾᄊْᆔК
ἋἻἨ࢟ཞ

ሁҽἋἻἨ

ɲᄊْ ɧଢ

ӳᚘᮏㄽᩥ࡛ࡣࠊࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊࢆホ౯ࡍࡿࡢ࡟㐺ᙜ࡞せ⣲㸦ࢫࣛࣈᙧ≧ࡸ◚ቯ✀ู㸧ࡉࡽ࡟ࡣ┦ᛂࡋ࠸ホ౯㍈࡞࡝ࢆ᳨ウࡍࡿࠋࡑ◚ቯ✀ูࡣ≀⌮ⓗ࡟ࢫࢱࢵࢻࡀ◚᩿ࡋࡓ࠿ࠊࢥࣥࢡ࣮ࣜࢺࡀ◚ቯࡢୖ࡛᪤ ᩥ⊩ࡢ㍈ᚄ 25mm ௨ୖࡢࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊ࡟㛵ࡍࡋࡓ࠿࡛ศ㢮ࡋ࡚࠸ࡿࠋᩥ⊩࡟ࢫࢱࢵࢻ◚᩿࡜ࢥࣥࢡ࣮ࣜࢺ◚ቯࡀࡿヨ㦂⤖ᯝࢆᨵࡵ࡚఩⨨࡙ࡅࡿࡇ࡜࡛ኴᚄࢫࢱࢵࢻࡢ⪏ຊ≉ᛶࢆ᫂ేグࡉࢀ࡚࠸ࡿࡶࡢࡣࠕ୧◚ቯࠖ࡜ࡋ࡚༊ูࡋࡓࠋࢫࣛࣈᙧ≧ࡢࡑࡽ࠿࡟ࡍࡿࡇ࡜ࡀ┠ⓗ࡛࠶ࡿࠋࡢ௚࡟ࡣࢹࢵ࢟ࣉ࣮ࣞࢺࢆ᝿ᐃࡋࡓ T Ꮠᆺࢫࣛࣈࡢヨ㦂య࡞࡝ࡀྵ

＊日本女子大学住居学科
Ꮫ⏕ 学生*᪥ᮏዪᏊ኱ᏛఫᒃᏛ⛉＊＊
日本女子大学住居学科 教授・工博᪥ᮏዪᏊ኱ᏛఫᒃᏛ⛉ᩍᤵ࣭ᕤᏛ༤ኈ
** ＊＊＊ 文化学園大学建築・インテリア学科
教授・博士（学術）＊＊＊＊ᩥ໬Ꮫᅬ኱Ꮫᘓ⠏࣭㺐㺻㺡㺶㺏Ꮫ⛉ᩍᤵ࣭༤ኈ宇都宮大学大学院工学研究科
助教・修士
***
(Ꮫ⾡（工学）)****Ᏹ㒔ᐑ኱Ꮫ኱Ꮫ㝔ᕤᏛ◊✲⛉ ຓᩍ࣭ಟኈ㸦ᕤᏛ㸧

Student, Student,
Dept. of Housing
Architecture,
Japan Womenʼs
Dept. ofand
Housingand Architecture,
JapanUniversity
Women's University
Prof., Dept. of Housing and Architecture, Japan Womenʼs Univ., Dr. Eng.
Prof.,
Dept. of Housing
and Architecture,Japan
Women'sProf., Dept.
of Architecture
and Interior
Design, Bunka
GakuenUniv.,Univ.,
Ph. D.Dr. Eng.
Prof.,Graduate
Dept. ofschool
Architecture
and Interior
Design, Univ.,
Bunka
Assist. Prof.,of Engineering,
Utsunomiya
M.Gakuen
Eng. Univ.,
Ph. D.

Assist. Prof., Graduate school of Engineering, Utsunomiya Univ., M.Eng.

─ 745 ─

ࡲࢀࡿࠋ

2500

ᑐ㇟ᩥ⊩࡟ࡼࡿከࡃࡣ➼ཌࢫࣛࣈࢆ᭷ࡍࡿヨ㦂య࡛࠶ࡾࠊ୙᫂ࢆ

ሁҽἋἻἨ㝖ࡃ࡜ࠊࢫࢱࢵࢻ◚᩿࡜ࢥࣥࢡ࣮ࣜࢺ◚ቯࡀ࡯ࡰྠᩘ⛬ᗘ࡟࡞ࡗࡓࠋ

ṼᵆᶌᵛᵏᵗᵔᵇṺᵆᶌᵛᵏᵓᵕᵇἋἑἕἛᄊૺ
ἅὅἁἼὊἚᄊْ

y=x

2000

୍᪉ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿヨ㦂యࡣࠊ୙᫂ࢆ㝖ࡃ࡜ࠊࢥ
Pmax(kN)ࣥࢡ࣮ࣜࢺ◚ቯࡋ࡚࠸ࡿࡶࡢࡀከ࠸ࠋࡇࡇ࡛ࡣࠊࢫࣛࣈᙧ≧࡜◚ቯ✀ูࡢ⤌ࡳྜࢃࡏ࡟ࡼࡿࡏࢇ᩿⪏ຊ࡟ὀ┠ࡋ࡚ศᯒࡍࡿࠋ

y = 1.023x
R² = 0.8964

1500

y = 0.915x
R² = 0.5782

1000 ศᯒᑐ㇟
཰㞟ࡋࡓ 1391 యࡢ⤖ᯝ࡟ࡣᴟ➃࡞ࢫࣛࣈࡢᣊ᮰࡞࡝ࠊ≉Ṧ࡞ᐇ

500㦂᮲௳࡟ࡼࡿ⤖ᯝࡀࡳࡽࢀࡓࡓࡵࠊH ᙧ㗰ࡢ୧ࣇࣛࣥࢪࡢእഃ࡟ࢫ
ࢱࢵࢻࡀᆶ┤࡟⁐᥋ࡉࢀ࡚࠾ࡾࠊ
ࢫࣛࣈࡀ୧ࣇࣛࣥࢪ࡟ᖹ⾜࡟௜ࡁࠊ0࠿ࡘヨ㦂᫬ࡢⲴ㔜ࡀ H ᙧ㗰ࡢ㍈᪉ྥࡢࡳࡢࡶࡢࠊ1002 యࢆࡇࢀ௨

0

500

1000

㝆ࡢศᯒᑐ㇟ 1)㹼77)࡜ࡍࡿࠋศᯒᑐ㇟࡜ࡋࡓヨ㦂యࡢ୰࡟ࡣᙧ≧࣭ᐇ㦂᪉ἲ࣭ᮦᩱ≉ᛶ࣭ᐇ㦂≧ἣ࡞࡝ᵝࠎ࡞ሙྜࡀྵࡲࢀ࡚࠸ࡿࠋ≉࡟

1500

2000

Fs × sca(kN)2500ᅗ㸰 ➼ཌࢫࣛࣈࢆ᭷ࡍࡿᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊホ౯୍⯡ⓗ࡟⪏ຊ࡬ࡢᙳ㡪ࡀ♧၀ࡉࢀ࡚࠸ࡿᐇ㦂᮲௳࡞࡝࡟ࡘ࠸࡚ࡣ୍
ࡘ୍ࡘᩥ⊩࠿ࡽㄞࡳྲྀࡾศᯒࡋࡓࠋࡋ࠿ࡋࠊ඲ࡃྠࡌᙧ≧࣭ᐇ㦂⪅࣭

ࢆ㏻ࡿ㸯ḟᅇᖐᘧ࡜Ỵᐃಀᩘࢆ♧ࡋࡓࠋᐇ㦂᪉ἲ࣭ᮦᩱ≉ᛶ࣭ᐇ㦂≧ἣୗ࡛ࡢ⤖ᯝ࡛࠶ࢀࡤከᑡࡢᙳ㡪ࡣࡳࢫࢱࢵࢻࡢᘬᙇᙉࡉ Fs㸦N/mm²㸧ࡢグ㍕ࡀᑐ㇟ᩥ⊩୰࡟࠶ࡿࢹ࣮

ࡽࢀࡿࡶࡢࡢࠊ඲యⓗ࡞ഴྥ࡜ࡋ࡚ࡣ඲యࡢࡤࡽࡘࡁࡢ୰࡟ᇙἐࡍ

ࢱࢆࡶ࡜࡟♧ࡋࡓ⤖ᯝ࡜ࡋ࡚ࠊࢫࢱࢵࢻ◚᩿࡜ࢥࣥࢡ࣮ࣜࢺ◚ቯࡢࡿࡇ࡜ࢆ☜ㄆࡋ࡚࠸ࡿࠋ

ᑐ㇟ࢹ࣮ࢱࡣ࡯ࡰྠᩘ࡛࠶ࡾࠊ඲యⓗ࡞ࡤࡽࡘࡁࡸ◚ቯ✀ู࡟ࡼࡿ᭱኱Ⲵ㔜 Pmax(kN)㸦௨㝆ࠊࡏࢇ᩿⪏ຊ࡜⛠ࡍࡿ㸧࡜ࢫࢱࢵࢻ㍈㒊ࡏࢇ᩿⪏ຊࡢ㐪࠸ࡣᑠࡉ࠸ࠋࡲࡓࠊ◚⥺࡛ࢫࢱࢵࢻᘬᙇᙉᗘ(x)࡟┦ࡢྜィ᩿㠃✚ sca(mm2)࡜ࡢ㛵ಀ࡟╔┠ࡋศᯒᑐ㇟ࡢ 1002 యࢆ⾲㸯ᙜࡍࡿࡏࢇ᩿⪏ຊ(y)ࡶ௜グࡋࡓࡀࠊࢫࢱࢵࢻ◚ቯࡋࡓሙྜࡢ⤖ᯝࡣࡢࢫࣛࣈᙧ≧࡜◚ቯ✀ู࡟ศࡅ࡚♧ࡋࡓࡢࡀᅗ㸯࡛࠶ࡿࠋࢫࣛࣈᙧ

y=1.023x ࡜࡞ࡾࡇࡢ◚⥺࡟ἢࡗ࡚࠸ࡿࡇ࡜ࡀᅗ࠿ࡽࢃ࠿ࡿࠋ࡞࠾ࠊ

≧ࡸ◚ቯ✀ู࡟ࡼࡗ࡚ࡤࡽࡘࡁࡣ࠶ࡿࡶࡢࡢࠊࡍ࡭࡚ࡢヨ㦂⤖ᯝࡢࢥࣥࢡ࣮ࣜࢺ◚ቯࡢሙྜࡣࢫࢱࢵࢻ◚᩿ࡢሙྜࡼࡾࡶഴࡁࡣࡸࡸᑠ

㸯ḟᅇᖐࡢ⤖ᯝࢆྠᅗ࡟௜グࡋࡓࠋࡏࢇ᩿⪏ຊࡀࢫࢱࢵࢻ㍈㒊ࡢྜࡉࡃ࡞ࡿࡶࡢࡢࠊy=0.915x ࡜࡯ࡰ◚⥺࡟ἢࡗ࡚ࡏࢇ᩿⪏ຊࡀୖ᪼ࡋ

ィ᩿㠃✚ࡢቑຍ࡟ࡘࢀ࡚኱ࡁࡃ࡞ࡿഴྥࡀ⾲ࢀ࡚࠸ࡿࠋ

࡚࠸ࡿࠋࡇࢀ࡟ࡘ࠸࡚ࡣᯇஂࡽࡢᩥ⊩ 14)ࡀཧ⪃࡟࡞ࡿࠋᯇஂࡽࡣࢫࢱࢵࢻ

ࡢ⣧ࡏࢇ᩿ヨ㦂࡜ᢲᢤࡁヨ㦂ࢆࡑࢀࡒࢀ SS400 ࡜ 690N/mm2 ࠊ

ẅẅẅᴾẅᴾᄊْᆔКἋἑἕἛἅὅἁἼὊἚ
ɲᄊْ
ɧଢ
ἋἻἨ࢟ཞ
ᄊૺ
ᄊْ
ሁҽἋἻἨ
ᴾṼᵆᶌᵛᵐᵔᵏᵇ ᴾṼᵆᶌᵛᵐᵕᵐᵇ ᴾṺ ᵆᶌᵛᵏᵓᵇ ᴾ Ṻ ᵆᶌᵛᵏᵏᵔᵇἙἕỿἩἾὊἚ˄
ᴾ ṵ ᵆᶌᵛᴾᴾᵖᵗᵇ
ᴾṴᵆᶌᵛᴾᴾᵒᵖᵇ ᴾṴᵆᶌᵛᵏᵑᵒᵇἋἻἨẸỉ˂ᴾᶣ ᵆᶌᵛᴾᴾᴾᴾᵗᵇ ᴾᶣ ᵆᶌᵛᴾᴾᵓᵕᵇ ᴾᶣ ᵆᶌᵛᴾᴾᵏᵇ

5000

780N/mm2 ࡢ 3 ✀㢮ࡢᙉᗘࡢࢫࢱࢵࢻࢆ⏝࠸࡚⾜ࡗ࡚࠸ࡿ㸦ᅗ㸱㸧ࠋྠᅗࡣࡍ࡭࡚ࢫࢱࢵࢻࡢ㍈㒊◚᩿ࡢ⤖ᯝ࡛࠶ࡿࠋ

1000

4000

਀৷Ẩᚾ᬴ኽௐ
ኝẶỮૺᚾ᬴ኽௐᵱᵱᵒᵎᵎᵔᵗᵎᵬᵍᶋᶋᵐ ᵕᵖᵎᵬᵍᶋᶋᵐᴾṺ ᵆᶌᵛᵑᵇ
ᴾṵ ᵆᶌᵛᵏᵇ

ᴾṼᵆᶌᵛᵒᵇᴾṴᵆᶌᵛᵏᵇᴾṼᵆᶌᵛᵒᵇᴾṴᵆᶌᵛᵐᵇ

800

Pmax(kN)

Pmax(kN)

3000

2000

1000

600

80N/mm²

80N/mm²

63N/mm²

69N/mm²

400

80N/mm²

80N/mm²
80N/mm²
69N/mm²

69N/mm²
63N/mm²

y = 1.042x

63N/mm²

200

0

0

2000

4000

sca(mm²)

6000

8000

10000

ᅗ㸯 ศᯒᑐ㇟ࡢࢫࢱࢵࢻ㍈㒊ྜィ᩿㠃✚࡟ࡼࡿࡏࢇ᩿⪏ຊ 1)~77)

0

0

200

400

Fs㽢sca(kN)

600

800

1000

ᅗ㸱 ࢫࢱࢵࢻࡢ⣧ࡏࢇ᩿ヨ㦂⤖ᯝ࡜ᢲᢤࡁヨ㦂⤖ᯝ 14)㸱㸬➼ཌࢫࣛࣈࢆ᭷ࡍࡿᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊᅗ㸯ࡢ࠺ࡕࠊ➼ཌࢫࣛࣈࡢሙྜ࡛ᗄࡘ࠿ࡢせ⣲㸦ࢫࢱࢵࢻࡸ㗰ᮦ࣭ᅗ㸱࡛ࡣヨ㦂యᩘࡀᑡ࡞࠸ࡶࡢࡢᢲᢤࡁヨ㦂⤖ᯝࡢཎⅬࢆ㏻ࡿ㸯ࢥࣥࢡ࣮ࣜࢺࡢᙉᗘ࣭๛ᛶ࣭ᑍἲ࡞࡝㸧ࡢࡏࢇ᩿⪏ຊ࡬ࡢᐤ୚ࡀ኱

ḟᅇᖐ(y=1.042x)ࡶᅗ㸰ࡢ◚⥺(y=x)࡜ྠ➼࡛࠶ࡿࡇ࡜ࡀࢃ࠿ࡿࠋࡉ

ࡁ࠸⤌ࡳྜࢃࡏ࡟ࡘ࠸࡚ヨ⾜㘒ㄗࢆ㔜ࡡࡓࠋ⤖ᯝࠊᅗ㸯ࡢᶓ㍈ࡢࢫࡽ࡟ࠊᅗ㸱ࡢ⣧ࡏࢇ᩿ヨ㦂⤖ᯝࡢཎⅬࢆ㏻ࡿ㸯ḟᅇᖐ࡜ࡢẚ㍑࡛ࡣࠊ

ࢱࢵࢻ㍈㒊ྜィ᩿㠃✚ sca㸦mm²㸧࡟ࡉࡽ࡟ࢫࢱࢵࢻࡢᘬᙇᙉࡉ Fs

ᢲᢤࡁヨ㦂⤖ᯝࡀࢫࢱࢵࢻࡢ⣧ࡏࢇ᩿⪏ຊࢆୖᅇࡗ࡚࠸ࡿࠋࡲࡓ

㸦N/mm²㸧ࢆ஌ࡌࡓࢫࢱࢵࢻᘬᙇᙉᗘ㸦Fssca(kN)㸧࡜ࡏࢇ᩿⪏ຊྛࠎࡢヨ㦂యࡢࢥࣥࢡ࣮ࣜࢺࡢᅽ⦰ᙉᗘ Fc(N/mm²)ࢆᅗ୰࡟௜グࡋ

Pmax(kN)ࡢ㛵ಀࢆᅗ㸰࡟♧ࡍࠋᅗ୰࡟ࡣࡑࢀࡒࢀࡢ◚ቯ✀ูࡢཎⅬࡓࡀࠊࢫࢱࢵࢻࡢᙉᗘࡀྠࡌ࡛ࡶࢥࣥࢡ࣮ࣜࢺᙉᗘࡀ኱ࡁࡃ࡞ࡿ࡜

─ 746 ─ࡏࢇ᩿⪏ຊࡀ኱ࡁࡃ࡞ࡗ࡚࠸ࡿࠋᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊࡣࠊࢫࢱ

⏭

Ἑࢵࢻᇶ㒊࿘㎶ࡢ㗰ᯈࡸࢥࣥࢡ࣮ࣜࢺ࡜ࡢ┦஫స⏝ࡢᙳ㡪࡟ࡼࡗ࡚ࠊ

Џૺ‫׹‬

2500

˄
ỿ
Ἃ
Ἡ
Ἳ Ἶ
Ἠ

್ૺ‫׹‬
Ⴚ৙Ẽ

2000

Ἒ

␢

ࢫࢱࢵࢻࡢ⣧ࡏࢇ᩿ᙉᗘ࡟ࢥࣥࢡ࣮ࣜࢺᙉᗘࡢ┦ᙜศࡀ௜ຍࡉࢀࡓ
⤖ᯝ࡜ࡶ⪃࠼ࡽࢀࡿࠋࡑࢀ࡟ࡼࡾࢫࢱࢵࢻᘬᙇᙉᗘ࡜ᢲࡋᢤࡁヨ㦂

್ૺ‫׹‬
ᝦᡫ৙Ẽ

ἋἑἕἛᄊૺ
ἅὅἁἼὊἚᄊْ
ἋἑἕἛᄊૺ
ἅὅἁἼὊἚᄊْ
ἋἑἕἛᄊૺ
ἅὅἁἼὊἚᄊْ

ᴾḘᵆᶌᵛᴾᴾᵖᵇ
ᴾᶣᵆᶌᵛᵏᵖᵇ
ᴾṴᵆᶌᵛᴾᴾᵖᵇ
ᴾṵᵆᶌᵛᴾᴾᵒᵇᴾṸᵆᶌᵛᴾᴾᵑᵇ
ᴾṹᵆᶌᵛᵔᵕᵇy=xࡢࡏࢇ᩿⪏ຊࡀྠ➼࡟࡞ࡗࡓ࡜᥎ᐹࡉࢀࡿࠋ

ᙇᙉᗘ࡛ࡢホ౯(y=x࣭◚⥺)ࡀᐇ⏝ⓗ࡟ጇᙜ࡛࠶ࡿ࡜ุ᩿࡛ࡁࡿࠋ

Pmax(kN)௨ୖࡢศᯒ࡜ᅗ㸰ࡢࢹ࣮ࢱࡢࡤࡽࡘࡁࢆ⪃៖ࡍࢀࡤࠊ➼ཌࢫࣛࣈࢆ᭷ࡍࡿሙྜࡢࡏࢇ᩿⪏ຊࡣࠊ◚ቯ✀ู࡟࠿࠿ࢃࡽࡎࠊࢫࢱࢵࢻᘬ

㸲㸬ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊ

1500

1000

y = 0.8524x
R² = 0.8946

500

 ࡇࡇ࡛ࡣࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿヨ㦂ࡢࡏࢇ᩿⪏ຊ࡟ࡘ࠸࡚⪃ᐹࡍࡿࠋྜᡂᱱ➼࡛ࡢࢹࢵ࢟ࣉ࣮ࣞࢺࡢ౑⏝࡛ࡣࠊᅗ㸲ࡢࡼ0࠺࡟ࠊH ᙧ㗰ࡢࣇࣛࣥࢪୖ࡛ࢹࢵ࢟ࣉ࣮ࣞࢺࢆษ᩿ࡍࡿࠕษ᩿ᆺࠖ
ࠊ

y = 0.1796x + 101.55
R² = 0.7092
0

500

1000

H ᙧ㗰ࡢࣇࣛࣥࢪୖࢆࢹࢵ࢟ࣉ࣮ࣞࢺࡀᶓ᩿ࡍࡿࠕᶓ᩿ᆺࠖ࡟ศ㢮ࡉࢀࡿࠋࡉࡽ࡟ᶓ᩿ᆺ࡟ࡣࢹࢵ࢟ࣉ࣮ࣞࢺ࡟✰ࢆ㛤ࡅ࡚ࢫࢱࢵࢻࢆ

1500

Fs × sca(kN)

2000

2500

ᅗ㸳 ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿሙྜࡢࡏࢇ᩿⪏ຊホ౯ࣇࣛࣥࢪ࡟┤᥋⁐᥋ࡍࡿࠕ┤ᡴࡕࠖ࡜ࠊࢹࢵ࢟ࣉ࣮ࣞࢺࢆ㈏㏻ࡋ࡚
⁐᥋ࡍࡿࠕ㈏㏻ᡴࡕࠖࡀ࠶ࡿࠋ

ᆺࡢ㸯ḟᅇᖐ࡛ࡣཎⅬࢆᣦྥࡍࡿࡀࠊᶓ᩿ᆺ࡛㈏㏻ᡴࡕ࡛ࡣཎⅬᅇᖐࡢഴྥ࡟࡞ࡃࢫࢱࢵࢻࡢ㍈ᚄࡸᙉᗘࡢᙳ㡪ࡀ㝈ᐃⓗ࡛࠶ࡿࡇ࡜ࡀ
ࢃ࠿ࡿࠋ㸳㸬ኴᚄࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊࡇࢀࡲ࡛ࡢ㍈ᚄ 25mm ᮍ‶ࡢࢫࢱࢵࢻࡢศᯒ⤖ᯝ࠿ࡽࠊᅗ㸴࡟ࢫࣛࣈᙧ≧࡜◚ቯ✀ู࡟ࡼࡿࡏࢇ᩿⪏ຊホ౯࡟ࡘ࠸࡚ࡲ࡜ࡵࡓࠋ➼ཌࢫࣛࣈ࡜ษ᩿ᆺࡢ⤖ᯝࢆࡲ࡜ࡵ࡚ࠊࡏࢇ᩿⪏ຊࡀࢫࢱࢵࢻᘬᙇᙉᗘ
࡟┦ᙜࡍࡿࡶࡢ࡜ࡋ࡚ホ౯(y=x)ࡍࡿࠋ

2500
ሁҽἋἻἨ
Џૺ‫׹‬
್ૺ‫׹‬ᝦᡫ৙ẼἙἕỿἩἾὊἚ
˄ἋἻἨ

Pmax(kN)

2000ᅗ㸲 ࢫࣛࣈᙧ≧඲యⓗ࡟ᑐ㇟ᩥ⊩୰ࡢࢹࢵ࢟ࣉ࣮ࣞࢺࢆ᭷ࡍࡿヨ㦂⤖ᯝࡢᩘࡀᑡ
࡞ࡃࠊ◚ቯ✀ูࡈ࡜࡟ศࡅ࡚⪃ᐹࡍࡿࡇ࡜ࡣ㐺ษ࡛࡞࠸ࠋࡑࡇ࡛ࠊ
㍈ᚄࡀ 25mm ᮍ‶ࡢࢫࢱࢵࢻ࡛ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿ
ᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊࢆ◚ቯ✀ู࡟࠿࠿ࢃࡽࡎᅗ㸳࡟♧ࡍࠋ

ᴾṺᵆᶌᵛᵑᵓᵑᵇ
ᴾᶣᵆᶌᵛᴾᴾᵐᵔᵇ
ᴾṹᵆᶌᵛᴾᴾᵔᵕᵇ

y=x

1500

1000
y = 0.1796x + 101.55
R² = 0.7092

500

0

0

500

1000

1500

Fs × sca(kN)

2000

2500

ᅗ㸴 ㍈ᚄ 25mm ᮍ‶ࡢࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊホ౯ࡑࢀ࡛ࡶᶓ᩿ᆺ࡛┤ᡴࡕࡢ⤖ᯝࡀᑡ࡞ࡃᅇᖐࡀ࡜ࢀ࡞࠸ࡀࠊษ᩿
ᆺ࡜ࠊᶓ᩿ᆺ࡛㈏㏻ᡴࡕࡢ⤖ᯝ࡟ࡘ࠸࡚ࡢ㸯ḟᅇᖐᘧ࡜ࡑࡢỴᐃಀᅗ㸴ࢆࡶ࡜࡟㍈ᚄࡀ 25mm ௨ୖࡢࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊ࡟㛵ࡍᩘࢆᅗ୰࡟௜グࡋࡓࠋྠᅗ࡟ࡣࠊᅗ㸰ࡢ➼ཌࢫࣛࣈࡢホ౯(y=x)ࡶཧ

ࡿഴྥࢆ᥈ࡿࠋᑐ㇟ᩥ⊩ࡢ࡞࠿࡛㍈ᚄ 25mm ௨ୖࡢࢫࢱࢵࢻ࡟ࡼࡿ

↷ࡢࡓࡵ㔜ࡡ᭩ࡁࡋࡓࠋษ᩿ᆺࡢሙྜࡣࠊ➼ཌࢫࣛࣈ࡜ẚ㍑ࡋ࡚ࡸ

⤖ᯝࡣࠊ➼ཌࢫࣛࣈࠊᶓ᩿ᆺ࡛┤ᡴࡕࡢ㸰✀㢮ࡀ࠶ࡿࠋࡑࡢ࠺ࡕࠊ

ࡸప࠸ࡶࡢࡢࠊヨ㦂⤖ᯝࡢࡤࡽࡘࡁࢆ⪃៖ࡍࢀࡤࡑࡢᕪࡣᑠࡉࡃࠊ

➼ཌࢫࣛࣈࡢ⤖ᯝ࡟ࡘ࠸࡚㔜ࡡ᭩ࡁࡋࡓࡶࡢࡀᅗ㸵࡛࠶ࡿࠋᮍࡔ㍈➼ཌࢫࣛࣈࡢホ౯࡜࡯ࡰྠᵝࡢࡏࢇ᩿⪏ຊ࡜ࡳ࡞ࡍࡇ࡜ࡀ࡛ࡁࡿࠋ

ᚄ 25mm ௨ୖࡢ◊✲ᡂᯝࡀ༑ศ࡛ࡣ࡞࠸ࡀࠊ➼ཌࢫࣛࣈࡢ㍈ᚄ୍᪉࡛ᶓ᩿ᆺࡢ⤖ᯝࡣ➼ཌࢫࣛࣈࡸษ᩿ᆺ࡜ࡣ␗࡞ࡿഴྥࢆ♧ࡋࠊ

25mm ௨ୖࡢኴᚄࢫࢱࢵࢻࡢሙྜࡣࠊࢫࢱࢵࢻᘬᙇᙉᗘ㸦Fssca㸧ษ᩿ᆺࡢ⤖ᯝ࡜ẚ࡭࡚඲యⓗ࡟ࡏࢇ᩿⪏ຊࡀᑠࡉ࠸ࠋࡇࡢࡇ࡜࠿ࡽ࡟ࡼࡿホ౯㍈࡛୧◚ቯ✀ู࡜ࡶ࡟ࢫࢱࢵࢻᘬᙇᙉᗘࡢቑຍ࡟ᚑࡗ࡚

ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿሙྜࡣࢫࢱࢵࢻ࿘ࡾࡢࢥࣥࢡ࣮ࣜ

ࡏࢇ᩿⪏ຊࡀᚎࠎ࡟పୗࡍࡿഴྥࡀ࠶ࡿࠋࡑࡇ࡛ࠊ㍈ᚄ 25mm ௨ୖࢺ࣮࣒࣎ࣜࣗࡀࡏࢇ᩿⪏ຊ࡟ᙳ㡪ࢆཬࡰࡍࡇ࡜ࡀ♧၀ࡉࢀࡿࠋษ᩿

ࡢࢹ࣮ࢱ࡟ࡶ࡜࡙ࡁཎⅬࢆ㏻ࡿ㸰ḟ࡛ࡢᅇᖐࢆヨࡳࠊࡑࡢ⤖ᯝࢆᅗ

─ 747 ─ᵐᵓᶋᶋச฼

Ṻ

ሁҽἋἻἨ

2500

ᵆᶌᵛᵑᵕᵗᵇἙἕỿἩἾὊἚ˄
ἋἻἨЏૺ‫׹‬

2000࠿࠿ࢃࡽࡎࠊࢫࢱࢵࢻᘬᙇᙉᗘ㸦ࢫࢱࢵࢻࡢᘬᙇᙉࡉ࡜㍈㒊ྜἋἑἕἛ᠆ࢲ
ᵐᵓᶋᶋˌɥ
ᴾᵐᵓᶋᶋ Ṽᵆᶌᵛᵏᵕᵇ
ᴾᵐᵕᶋᶋ Ṽᵆᶌᵛᴾᴾᵑᵇ
ᴾᵑᵎᶋᶋ Ṻ ᵆᶌᵛᴾᴾᵒᵇィ᩿㠃✚ࡢ✚㸧ࢆࡶ࡜࡟ホ౯࡛ࡁࡿࡇ࡜ࢆᑟ࠸ࡓࠋ
㸰㸧ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࢆ᭷ࡍࡿᢲᢤࡁヨ㦂࡛ࡣࠊᶓ᩿ᆺࡼࡾ
y=x

ᴾᶣ
ᵆᶌᵛᴾᴾᵐᵔᵇษ᩿ᆺࡢ᪉ࡀࠊ඲యⓗ࡟ࡏࢇ᩿⪏ຊࡀ኱ࡁ࠸ࠋษ᩿ᆺ࡛ࢥࣥࢡ
࣮ࣜࢺ◚ቯࡢሙྜࡣ➼ཌࢫࣛࣈࡢሙྜ࡜ྠᵝ࡟ࢫࢱࢵࢻࡢᘬᙇ

Pmax(kN)ᙉᗘ࡜㍈㒊ྜィ᩿㠃✚ࡢ✚࡜ࡏࢇ᩿⪏ຊࡀẚ౛㛵ಀ࡟࠶ࡿࡀࠊ
1500

ᶓ᩿ᆺ࡛㈏㏻ᡴࡕࡢࢥࣥࢡ࣮ࣜࢺ◚ቯ࡛ࡣࡑࢀࡽࡢᙳ㡪ࡀ㝈ᐃⓗ࡛࠶ࡿࡇ࡜ࢆ᫂ࡽ࠿࡟ࡋࡓࠋ

1000㸱㸧ᑐ㇟ᩥ⊩ࡢኴᚄࢫࢱࢵࢻࡢ஦౛ࡀከࡃ࡞࠸ࡶࡢࡢࠊ➼ཌࢫࣛࣈy = -0.00013 x2 + 1.0312 x
R² = 0.79082

ࢆ᭷ࡍࡿሙྜࡢࡏࢇ᩿⪏ຊࡣࢫࢱࢵࢻᘬᙇᙉᗘ㸦ࢫࢱࢵࢻࡢᘬ

500

ᙇᙉࡉ࡜㍈㒊ྜィ᩿㠃✚ࡢ✚㸧࡟ࡼࡿホ౯࡛ࡣ◚ቯ✀ู࡟࠿࠿ࢃࡽࡎࡏࢇ᩿⪏ຊࡀᚎࠎ࡟పୗࡍࡿഴྥࡀㄆࡵࡽࢀࡓࠋ

0

0

500

1000

1500

2000

Fs × sca(kN)

2500ᮏ◊✲ࡣᩥ⊩◊✲࡛࠶ࡾࠊ཰㞟ࡋࡓከࡃࡢヨ㦂⤖ᯝࢆᑐ㇟࡟ศᯒ

ᅗ㸵 ➼ཌࢫࣛࣈࢆ᭷ࡍࡿሙྜࡢኴᚄࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊホ౯ࡋ࡚࠸ࡿ࡜ࡇࢁ࡟≉ᚩࡀ࠶ࡿࠋࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈࡢ◚ቯ✀ู࡟ࡼࡿศ㢮ࡸ㍈ᚄ 25mm ௨ୖࡢࢫࢱࢵࢻ࡛ࡢ◊✲ࡣᮍࡔ༑ศ࡜ࡣ
ゝ࠼࡞࠸ࡶࡢࡢࠊᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊ࡜ࡋ࡚ࢫࣛࣈᙧ≧࡜ࢫࢱ୰࡟♧ࡋࡓࠋ
୍᪉ࠊᅗ㸶࡛ࡣᶓ᩿ᆺ࡛ ࡍ࡭ ࡚ࡢ㍈ᚄࡢ┤ᡴࡕࡢ⤖ᯝ ࢆ㍈ᚄ

ࢵࢻ㍈ᚄ࡟ࡼࡗ࡚⾲㸰ࡢࡼ࠺࡟ホ౯ࡋࡓࠋ25mm ᮍ‶࡛ᶓ᩿ᆺࡢ㈏㏻ᡴࡕࡢࡏࢇ᩿⪏ຊホ౯㸦ᅗ㸴㸧࡟㔜ࡡ᭩ࡁࡋࡓࠋ㸰ࡘࡢ㸯ḟᅇᖐࡣഴࡁࡀ࡯ࡰ➼ࡋ࠸ࡇ࡜࠿ࡽࠊࡉࡽ࡟ᶓ᩿⾲㸰 ࢫࣛࣈᙧ≧࡜ࢫࢱࢵࢻ㍈ᚄ࡟ࡼࡿࡏࢇ᩿⪏ຊ(kN)ホ౯ᆺࡢ⤖ᯝࡍ࡭࡚ࢆࡲ࡜ࡵ࡚㸯ḟᅇᖐࡋࡓࡶࡢࢆᐇ⥺࡛ྠᅗ࡟♧ࡋࡓࠋᶓ᩿ᆺࡢሙྜࠊࢫࢱࢵࢻ┤ᡴࡕࡢࡏࢇ᩿⪏ຊࡣ➼ཌࢫࣛࣈࡢ⤖ᯝ࡜䝇䝷䝤ᙧ≧ẚ࡭࡚ప࠸ࡔࡅ࡛࡞ࡃࠊࢫࢱࢵࢻࡢ㍈ᚄࡸᮦᩱᙉᗘࡢࡏࢇ᩿⪏ຊ࡬➼ཌ䝇䝷䝤ࡢᐤ୚ࡀᑠࡉ࠸ࡇ࡜ࡀࢃ࠿ࡿࠋ

ษ᩿ᆺ
䝕䝑䜻
䝥䝺䞊䝖
┤ᡴ䛱
௜䝇䝷䝤 ᶓ᩿ᆺ
㈏㏻ᡴ䛱

2500
್ૺ‫׹‬
Ⴚ৙Ẽ

ἋἑἕἛ᠆ࢲ
ᵐᵓᶋᶋச฼
ἋἑἕἛ᠆ࢲ
ᵐᵓᶋᶋ

್ૺ‫׹‬
ᝦᡫ৙Ẽ

ἋἑἕἛ᠆ࢲ
ᵐᵓᶋᶋச฼

⏭

Ἑ

˄
ỿ
Ἃ
Ἡ
Ἳ
Ἶ
Ἠ

2000

␢

Ἒ

Ṵᵆᶌᵛᵏᵐᵇ

25mmᮍ‶

25mm௨ୖ
䚷Pmax=Fs䞉 sca

Pmax=Fs䞉 sca 䚷䚷䚷䚷䠉0.00013䞉(Fs䞉 sca)²―
Pmax=0.23䞉Fs䞉 sca䠇130―ṵᵆᶌᵛᵔᵎᵇᮏ◊✲ࡣ(୍♫)ࢫࢱࢵࢻ༠఍ࡢጤဨ఍άືࡢ୍⎔࡜ࡋ࡚⾜ࡗࡓࡶṹᵆᶌᵛᵕᵎᵇࡢ࡛࠶ࡾࠊ⚄ᡞ኱Ꮫ኱Ꮫ㝔ࡢᴿ┿ᇽẶ࡜ࠊឡ▱ᕤᴗ኱Ꮫ኱Ꮫ㝔ࡢ㕥

1500

Pmax(kN)䝇䝍䝑䝗㍈ᚄ

ᮌὒᖹẶ࡟ࡣᩥ⊩཰㞟➼࡛༠ຊ࠸ࡓࡔ࠸ࡓࠋㅰពࢆ⾲ࡍࡿࠋ
1000

500

0

ཧ⪃ᩥ⊩
1)ᖹ㔝㐨຾㸪▼ᕝᏕ㔜㸸ࢫࢱࢵࢻࢥࢿࢡࢱࡢᢲࡋᢤࡁᐇ㦂 STUD 9φ ࢆ⏝࠸

y = 0.2304x + 131.96
R² = 0.3499

y = 0.2323x + 197.96
R² = 0.2635

ࡓሙྜ㸪᪥ᮏᘓ⠏Ꮫ఍◊✲ሗ࿌㞟 ᵓ㐀⣔㸪➨ 52 ᕳ㸪pp.233㹼236㸪1981.7
2)୕஭ᐅஅ㸪ᮧୖ⪷㸪ỤⰋᘯᶞ㸪ᆏ஭ᘅ㐨㸪୰ᮧᏲᗣ㸸Ⅳ⣲⧄⥔⿵ᙉࢥࣥࢡ

y = 0.1796x + 101.55
R² = 0.7092
0

500

1000

1500

Fs × sca(kN)

2000

2500

ᅗ㸶 ᶓ᩿ᆺࡢᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊホ౯㸴㸬࠾ࢃࡾ࡟
㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂ࢆᑐ㇟࡜ࡋࡓ 90 ⦅ࡢᩥ⊩࠿ࡽ 1391
యࡢヨ㦂⤖ᯝࢆᚓࡓࠋࡲࡎᡭጞࡵ࡟ᑐ㇟ᩥ⊩ࡢ࡞࠿ࡢࢫࢱࢵࢻ㍈ᚄ࣮ࣜࢺ࡜ H ᆺ㗰ࡢྜᡂࣃࢿࣝࡢ᭤ࡆ㍕Ⲵヨ㦂(ࡑࡢ 3)㸪᪥ᮏᘓ⠏Ꮫ఍◊✲ሗ࿌㞟 ᵓ㐀⣔㸪➨ 33 ᕳ㸪pp.381㹼384㸪1992.3
3)ᒣ⏣᤬㸪⚟⏣ᬕ⏨㸸ࢫࢱࢵࢻࢪ࣋ࣝࡢຊᏛᛶ≧࡟㛵ࡍࡿᐇ㦂ⓗ◊✲㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.479㹼480㸪1971.9
4)ᖹ㔝㐨඾㸪཭Ọஂ㞝㸸ྜᡂᱱ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲ ࡑࡢ 1 ᢲࡋᢤࡁヨ㦂 ᵓ㐀㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.1507㹼1508㸪1972.9
5)㟷ᰗྖ㸪ෆ⏣┤ᶞ㸪࿴⏣❶㸪Ṋ⏣ᑑ୍㸪Ụᡞᏹᙲ㸸ྜᡂࡤࡾࡢᐇ኱ヨ㦂 ࡑ
ࡢ 1 ᐇ㦂ィ⏬࣭ᢲࡋᢤࡁヨ㦂㸪᪥ᮏᘓ⠏Ꮫ఍Ꮫ⾡◊✲Ⓨ⾲఍᱾ᴫ㞟 ᵓ㐀⣔㸪pp.33㹼36㸪1973.3
6)཭Ọஂ㞝㸪ᖹ㔝㐨຾㸸ྜᡂᱱ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲(ࡑࡢ 3࣭ᢲࡋᢤࡁヨ㦂'72)㸪

25mm ᮍ‶ࡢ⤖ᯝ࠿ࡽࢫࣛࣈᙧ≧ࡸ◚ቯ✀ูࡈ࡜ࡢ⢭ᰝ࣭ศᯒࢆ⤒᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.1551㹼1552㸪1973.10
7)ᖹ㔝㐨຾㸪✑✚⚽㞝㸸ྜᡂᱱ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲ ࡑࡢ 4 ᢲࡋᢤࡁヨ㦂'73㸪

࡚ࠊከࡃࡢヨ㦂⤖ᯝ࡟ࡶ࡜࡙ࡃỗ⏝ⓗ࡞ࡏࢇ᩿⪏ຊホ౯ࢆᑟ࠸ࡓࠋ

᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.1085㹼1086, 1974.8
8)ᖹ㔝㐨຾㸪✑✚⚽㞝㸸ᘬᙇຊࢆ࠺ࡅࡿࢫࣛࣈ࡟ᇙ㎸ࡲࢀࡓࢫࢱࢵࢻࢥࢿࢡ

ࡉࡽ࡟㍈ᚄ 25mm ௨ୖࡢࢫࢱࢵࢻࡢ⤖ᯝࢆ㔜ࡡࡿࡇ࡜࡛ኴᚄࢫࢱ
ࢵࢻࡢࡏࢇ᩿⪏ຊ࡟㛵ࡍࡿ≉ᛶࢆ᥈ࡗࡓࠋᮏㄽᩥ࡛ᚓࡽࢀࡓ▱ぢࢆ௨ୗ࡟ࡲ࡜ࡵࡿࠋ
㸯㸧➼ཌࢫࣛࣈࢆ᭷ࡍࡿᢲᢤࡁヨ㦂ࡢࡏࢇ᩿⪏ຊࡣࠊከࡃࡢヨ㦂⤖ᯝࡢᩚ⌮࠿ࡽ◚ቯ✀ู㸦ࢫࢱࢵࢻ◚᩿࠿ࢥࣥࢡ࣮ࣜࢺ◚ቯ㸧࡟─ 748 ─ࢱࡢᢲᢤࡁヨ㦂㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟㸪pp.947㹼948㸪1975.8
9)ᖹ㔝㐨຾㸪✑✚⚽㞝㸪ྜྷᕝ⢭ኵ㸸PC ࢫࣛࣈࢆ㗰ᱱ࡟᥋ྜࡍࡿࢫࢱࢵࢻ࣭
ࢥࢿࢡࢱࡢᢲᢤヨ㦂㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.1293
㹼1294㸪1977.10
10)⚟⏣㞝୍㸸ࢫࢱࢵࢻࢥࢿࢡࢱ࣮ࡢᢲᢤࡁヨ㦂㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀⣔㸪pp.1911㹼1912㸪1978.8

11)ཝワ↵㸪஭ୖ୍ᮁ㸪㎷ᒸ㟼㞝㸪᪂ᒃດ㸸㧗ᙉᗘࢫࢱࢵࢻࡢຊᏛⓗㅖ≉ᛶ࡟ࡘ࠸࡚㸪ணഛᐇ㦂㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀ϩ㸪pp.1377
㹼1378㸪1989.912)⠛ཎᩗ἞㸪ᑠᯘ⾜㞝㸪᳝㔝㧗⾜㸸㕲㦵ࣇ࣮࣒ࣞ⪏㟈⿵ᙉቨࡢ᥋ྜ㒊࡟㛵ࡍࡿᐇ㦂ⓗ◊✲ ࡑࡢ 1 ࢫࢱࢵࢻ࡜ᶞ⬡࢔࣮ࣥ࢝ࡢᢲᢤࡁヨ㦂㸪᪥ᮏᘓ⠏Ꮫ

pp.307㹼319㸪2011.
33)኱ᇛኊྖ㸪ୖᲄᓫ㸪ዟ஭⩏᫛㸪㛗஭ṇႹ㸸ࣉࣞ࢟ࣕࢫࢺᗋ∧㐃⥆ྜᡂ᱆ࡢࡎࢀṆࡵ࡟㛵ࡍࡿᐇ㦂࠾ࡼࡧゎᯒ㸪ᅵᮌᏛ఍ㄽᩥ㞟 A1㸪➨ 68 ᕳ㸪➨ 2

ྕ㸪pp.331㹼346㸪2012.
34)ᖹ㝧ර㸪Ώ㎶ᛅ᭸㸪ᩧ⸨ᡂᙪ㸪⁁Ụ៞ஂ㸪ᓥᘯ㸪୰ᓥ❶඾㸸ไᚚࡉࢀࡓࡏ

఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀ϩ㸪pp.705㹼706㸪1990.9
13)బ⸨࿴ᗈ㸪஭ୖ୍ᮁ㸪ᑿᙧ⣲⮧㸸ኴᚄ࣭㧗ᙉᗘࢫࢱࢵࢻࢩ࢔ࢥࢿࢡࢱࡢᢲ

ࢇ᩿ຊ࡜㍈᪉ྥᅽ⦰ຊࢆཷࡅࡿ㢌௜ࡁࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊ࡜ࡏࢇ᩿ຊ-ᢤࡁヨ㦂㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀ϩ㸪pp.1677㹼1678㸪

35)㧗ᶫⰋ㍜㸪ᩪ⸨ᡂᙪ㸪୰ᓥ❶඾㸪ᓥᘯ㸸༢⣧ᨭᣢ࡜㛤ࡁṆࡵࢆే⏝ࡋࡓᢲᢤࡁヨ㦂࡟࠾ࡅࡿ㢌௜ࡁࢫࢱࢵࢻࡢ⪏Ⲵᣲື㸪ᅵᮌᏛ఍ㄽᩥ㞟 A1㸪➨ 71

1991.814)ᯇஂ຾ஓ㸪஭ୖ୍㑻㸪ᑿᙧ⣲⮧㸸㧗ᙉᗘࢫࢱࢵࢻࡢ㛤Ⓨ◊✲㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀ϩ㸪pp.1785㹼1786㸪1992.8
15)㡲ᡞᬛ୍㸪஭ୖ୍ᮁ㸪⏣ᕝὈஂ㸪ᯇஂ ຾ஓ㸪ᑿᙧ ⣲⮧㸸㢌௜ࡁࢫࢱࢵࢻ
ࡢᢲࡋᢤࡁヨ㦂᪉ἲࡢᶆ‽໬࡟㛵ࡍࡿ◊✲㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀Ϫ㸪pp.853㹼854㸪1995.7

16)㥴ἙⰋྖ㸪ᑿᙧ⣲⮧㸪஭ୖ୍ᮁ㸪⏣ᕝὈஂ㸸㢌௜ࡁࢫࢱࢵࢻᢲᢤࡁヨ㦂ࡢᶆ‽໬࡟㛵ࡍࡿᐇ㦂 ࢹࢵ࢟㈏㏻⁐᥋ࡢሙྜ㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀Ϫ㸪pp.855㹼856㸪1995.7
17)⏣ᕝὈஂ㸪㥴ἙⰋྖ㸪➉ୗ࿴ᙪ㸸ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈ࡟ᇙ㎸ࡲࢀࡓ㢌௜ࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ࡑࡢ 1. 㕲㦵ᱱ࡟ࢫࢱࢵࢻࢆ┤࡟⁐᥋ࡋࡓሙྜ㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀Ϫ㸪pp.521㹼522㸪1996.7

18)㥴ἙⰋྖ㸪⏣ᕝὈஂ㸪➉ୗ࿴ᙪ㸸ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈ࡟ᇙ㎸ࡲࢀࡓ㢌௜ࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ࡑࡢ 2. ࢫࢱࢵࢻ 1 ᮏࢆࢹࢵ࢟⁁࡟㈏㏻⁐᥋ࡋࡎࢀኚ఩㛵ಀ㸪ᅵᮌᏛ఍ㄽᩥ㞟 A1㸪➨ 70 ᕳ㸪➨ 5 ྕ㸪II_69-II_80㸪2014.

ᕳ㸪➨ 1 ྕ㸪pp.113㹼127㸪2015.

36)኱ஂಖᐉே㸪ᑠᯇᜨ୍㸪▼ཎ㟹ᘯ㸪ᰩ⏣❶ග㸪୰ᓥᫍె㸸ࢢ࣮ࣝࣉ㓄⨨ࡋࡓࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂㸪ᅵᮌᏛ఍➨ 56 ᅇᖺḟᏛ⾡ㅮ₇఍᱾ᴫ㞟㸪CS2-10㸪2001.10

37)ᒸ⏣῟㸪౫⏣↷ᙪ㸸㍈ᚄ 25 mm ࡢ㢌௜ࡁࢫࢱࢵࢻࡢࡏࢇ᩿⪏Ⲵຊ࡟㛵ࡍࡿゎᯒⓗ᳨ウ㸪ᅵᮌᏛ఍➨ 60 ᅇᖺḟᏛ⾡ㅮ₇఍᱾ᴫ㞟㸪pp.879㹼880㸪
2005.938)Ọᑿ࿴኱㸪୰ᓥ❶඾㸪Ώ℩༤㸪ཎ೺᲌㸸ࢥࣥࢡ࣮ࣜࢺᗋ∧⟽ᢤࡁ㒊࡜ࣔࣝࢱࣝᒙࢆ⏝࠸ࡓ㢌௜ࡁࢫࢱࢵࢻᢲᢤࡁヨ㦂యࡢᢲᢤࡁᛶ≧㸪ᅵᮌᏛ఍➨68 ᅇᖺḟᏛ⾡ㅮ₇఍᱾ᴫ㞟㸪CS3-014㸪2013.9
39)኱㇂ᜤᘯ㸪୰ᓥ❶඾㸪Ώ㒊೺ኴ㸪బࠎᮌ୍᫂㸪✄ᮏ᫭ኈ㸪ෆᾏ⚈ே㸸㍈ᚄ
25mm 㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁࡏࢇ᩿ᙉᗘᛶ≧㸪ᅵᮌᏛ఍➨ 69 ᅇᖺḟᏛ⾡ㅮ₇఍᱾ᴫ㞟㸪CS3-07㸪2014.9

ࡓሙྜ㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀Ϫ㸪pp.523㹼524㸪40)ᖹᇛᘯ୍㸪ᯇ஭⦾அ㸪⚟ᮏ⚽ኈ㸸㢌௜ࡁࢫࢱࢵࢻࡢᙉᗘホ౯ᘧࡢㄏᑟ―㟼

1996.719)➉ୗ࿴ᙪ㸪⏣ᕝὈஂ㸪㥴ἙⰋྖ㸸ࢹࢵ࢟ࣉ࣮ࣞࢺ௜ࢫࣛࣈ࡟ᇙ㎸ࡲࢀࡓ㢌41)ಖᆏ㚡▮㸪୰ᮧಇ୍㸪すᾏ೺஧㸸㗰⟶᱆ࡢ᭤ࡆ⪏ຊ࠾ࡼࡧ RC ᗋ∧࡜ࡢࡎⓗᙉᗘホ౯ᘧ―㸪ᵓ㐀ᕤᏛㄽᩥ㞟㸪35A㸪pp.1221㹼1232㸪1989.3

௜ࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ࡑࡢ 3. ㈏㏻⁐᥋࡛㧗ᙉᗘࢥࣥࢡ࣮ࣜࢺࡢሙྜ㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 C ᵓ㐀Ϫ㸪pp.525㹼526㸪1996.7

ࢀṆࡵ࡟㛵ࡍࡿᐇ㦂ⓗ◊✲㸪ᵓ㐀ᕤᏛㄽᩥ㞟㸪43A㸪pp.1301㹼1312㸪

20)⏣ᕝὈஂ㸪ᇼ⏣ὒᚿ㸪୰ᴆὒ௓㸪ὸ⏣ຬே㸸ࢹࢵ࢟ࣉ࣮ࣞࢺࢆ⏝࠸ࡓྜᡂᱱ࡟࠾ࡅࡿ㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ኴᚄࢫࢱࢵࢻࡢ㓄⨨࡜✺ฟ㛗ࡉ42)ᒣᮏ┿Ẽ㸪ᮌ㒊ㅬ࿃㸪኱ᒣ⌮㸪኱ஂಖᐉே㸪ᰩ⏣❶ග㸸஧㔜ྜᡂ 2 ୺ I ᱆ࡢຊᏛᛶ≧࡬ࡢᙳ㡪 ࡑࡢ 1㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀Ϫ㸪
pp.855㹼856㸪2012.9

55A㸪pp.1102㹼1113㸪2009.3
43)୰ᓥ❶඾㸪ᒸᓮᗣᖾ㸪ࢢ࢚ࣥࣂࣥࣘࣥ㸸ࢢ࣮ࣝࣉࢫࢱࢵࢻࢆ㓄⨨ࡋࡓࣉࣞ21)ᇼ⏣ὒᚿ㸪⏣ᕝὈஂ㸪ຍ⣡࿴㯞㸸ࢹࢵ࢟ࣉ࣮ࣞࢺࢆ⏝࠸ࡓྜᡂᱱ࡟࠾ࡅࡿ
㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ኴᚄࢫࢱࢵࢻࡢ✺ฟ㛗ࡉ࡟ࡼࡿኚᙧ≧ែ࡬࢟ࣕࢫࢺᗋ∧ྜᡂ᱆ࡢヲ⣽ᣲື࡟㛵ࡍࡿᇶ♏ᐇ㦂㸪ᵓ㐀ᕤᏛㄽᩥ㞟㸪60A㸪
pp.788㹼797㸪2014.3

ࡢᙳ㡪 ࡑࡢ 1㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀Ϫ㸪pp.1181㹼1182㸪
2013.8

1997.3ᶫࡢୗࢥࣥࢡ࣮ࣜࢺᗋ∧࡟࠾ࡅࡿࢫࢱࢵࢻࡢタィἲ㸪ᵓ㐀ᕤᏛㄽᩥ㞟㸪44)ᖹᇛᘯ୍㸪ᰩ⏣❶ග㸪㉥ᑿぶຓ㸸ࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂ᣲື࡟ཬࡰࡍᙳ㡪ᅉᏊ࡟㛵ࡍࡿᇶ♏ⓗ◊✲㸪➨㸯ᅇྜᡂᵓ㐀ࡢά⏝࡟㛵ࡍࡿࢩ࣏ࣥࢪ࣒࢘ㅮ

22)ຍ⣡࿴㯞㸪⏣ᕝὈஂ㸪ᒣཱྀ༓ᑜ㸸ࢹࢵ࢟ࣉ࣮ࣞࢺࢆ⏝࠸ࡓྜᡂᱱ࡟࠾ࡅࡿ
㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁヨ㦂 ኴᚄࢫࢱࢵࢻࡢࡏࢇ᩿⪏ຊホ౯࡟㛵ࡍࡿ୍

₇ㄽᩥ㞟㸪➨ 13 ྕ㸪pp.81㹼89㸪1986.945)ᯇ஭⦾அ㸪ᖹᇛᘯ୍㸪▼ᓮⱱ㸸ࢫࢱࢵࢻࡢ㠀ྜᡂ᱆ᶫ࡬ࡢ㐺⏝࡟㛵ࡍࡿ◊ᥦ᱌ ࡑࡢ 1㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀Ϫ㸪pp.899㹼900㸪
2014.9✲㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥሗ࿌㞟㸪➨ 19 ᕳ㸪➨ 2 ྕ㸪pp.1413㹼1418㸪
1997.623)኱㇂ᜤᘯ㸪▼ᕝᏕ㔜㸪Ώ㒊೺ኴ㸪బࠎᮌ୍᫂㸪✄ᮏ᫭ኈ㸪ෆᾏ⚈ே㸸ኴᚄ
φ25 㢌௜ࡁࢫࢱࢵࢻࡢᢲᢤࡁࡏࢇ᩿ᐇ㦂࡜ᙉᗘホ౯㸪᪥ᮏᘓ⠏Ꮫ఍኱఍Ꮫ

46)๓⏣Ὀ⚽㸪▼ᓮⱱ㸪ᖹᇛᘯ୍㸪ụᑿⰋ୍㸸㧗๛ᛶࢆ┠ᣦࡋࡓࢫࢱࢵࢻࡢ㛤⾡ㅮ₇᱾ᴫ㞟 ᵓ㐀Ϫ㸪pp.1375㹼1376㸪2014.9
24)∾㔝⛱㸪ᗈἑ㞞ஓ㸪⏣⏿㈆࿴㸪㧗⏣༑἞㸪∾⣧୍㸸ࢫࢱࢵࢻࢥࢿࢡࢱ࣮ࡢ

1999.647)➟஭⿱ḟ㸪బ⸨ᏹ἞㸪኱ୗⱥྜྷ㸪Ἑᮧဴ⏨㸸ᣊ᮰ຠᯝࢆ᭷ࡍࡿ㗰ࢥࣥࢡࣜᢲࡋᢤࡁヨ㦂࡟ࡘ࠸࡚㸪᪥ᮏᘓ⠏Ꮫ఍ㄽᩥሗ࿌㞟 ྕእ Ꮫ⾡ㅮ₇せ᪨㞟㸪
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࣮ࢺ⏺㠃ࡢ௜╔ᛶ≧࡟㛵ࡍࡿ◊✲㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥሗ࿌㞟㸪➨
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25)ᖹ㔝㐨຾㸪✑✚⚽㞝㸪ྜྷᕝ⢭ኵ㸪཭Ọஂ㞝㸸ᗋ㗰ᯈࡘࡁࢥࣥࢡ࣮ࣜࢺࢫࣛ
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ᘬᢤࡁ≉ᛶ㸪ࢥࣥࢡ࣮ࣜࢺᕤᏛᖺḟㄽᩥ㞟㸪➨ 25 ᕳ㸪➨ 2 ྕ㸪pp.1609
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A COMPREHENSIVE REVIEW OF THE LITERATURE ON SHEAR STRENGTH OF PUSH-OUT
A COMPREHENSIVE REVIEW OF THE LITERATURETESTS OF HEADED STUDSON SHEAR
STRENGTH
OF PUSH-OUT
OF HEADED
Comprehensive
and holistic
analysis focusing
on the typeTESTS
of slab, failuremode, andSTUDS
stud diameter
Comprehensive and holistic analysis focusing on the type of slab, failure mode, and stud diameter

Chihiro HIRAMA* Takashige ISHIKAWA** Akie HISAGI*** and Minhhai NGUYEN****
Chihiro HIRAMA ＊, Takashige ISHIKAWA ＊＊, Akie HISAGI ＊＊＊＊＊＊＊*Student, Dept. of andHousingand Architecture,Japan
Women's University
MinhhaiNGUYEN**Prof., Dept. of Housing and Architecture, Japan Women's Univ., Dr. Eng.
＊***Prof.,Dept. of
Architecture
andInterior
Design,Japan
Bunka
GakuenUniversity
Univ., Ph. D.
Student,
Dept.
of Housing
andArchitecture,
Womenʼs＊＊Prof., Dept. of Housing and Architecture, Japan Womenʼs Univ., Dr. Eng.
＊＊＊****Prof.,
Assist.Dept.
Prof.,
schoolEngineering,
Univ.,
M.Eng.
ofGraduate
Architecture
andofInterior
Design,Utsunomiya
Bunka Gakuen
Univ.,
Ph. D.
＊＊＊＊
Assist. Prof., Graduate school of Engineering, Utsunomiya Univ., M. Eng.

The connection between a steel beam and a concrete slab in the composite beams of many buildings or bridges isgenerally manufactured with headed studs. In the revised Japanese Industrial Standards in 2011, headed studs ofdiameters of 10 mm and 25 mm were added. However, a consideration of their mechanical properties is not sufficient.
The shear strength of headed studs is typically investigated via push-out tests; however, these tests are carried out
under specific conditions, and the results of these tests are greatly affected by the test conditions. There have been
only few studies on headed studs with diameters of 10 mm and 25 mm; however, there have been many studies on themechanical properties of headed studs of other diameters, using push-out tests. Therefore, we collected test results on
the shear strength that have been obtained from previous studies from other countries that performed push-out tests
using headed studs. In this study, we define the subject of analysis, and attempted to discuss the tendency of shear
strength comprehensively by investigating experimental data obtained through 1002 push-out test results.
We divide it into failure mode and type of slab; we focus on the tendency of the shear strength from the test results.
The shear strength of a headed stud in a solid slab was approximately equal to the product of the headed studtensile strength and total cross-sectional area of the shaft component of the headed stud. The shear strength value isapproximated because the results of the push-out test are influenced by the pure shear strength as well as theconcrete strength. This tendency is especially prominent in case of failure of the headed stud. A similar tendency,
although with variations, is observed in case of failure of concrete. The shear strength of a headed stud in a slab witha steel deck cut on the flange also shows a trend similar to the shear strength of a headed stud in a solid slab.
On the other hand, the shear strength of a headed stud in a slab with a steel deck across the flange showed adifferent tendency. It is less than the shear strength of a headed stud in a solid slab. Although specimens having aslab with a steel deck across the flange can be classified into specimens having a headed stud welded through a steel
deck and specimens having a headed stud welded to the flange directly, their shear strength tendency was almost
equal.
The shear strength of a headed stud with a diameter more than 25 mm in a solid slab gradually decreased withincreasing diameter in both the failure modes.
Through a regression analysis of the test results, we classified the results into three types. The first is the test
result for a headed stud having a diameter less than 25 mm in a solid slab or slab with a steel deck cut on the flange.
The second is the test result for a headed stud having a diameter of more than 25 mm in a solid slab. The third is thetest result for a headed stud having a diameter of more than 25 mm with a steel deck across the flange; the test result
for a headed stud having a diameter of more than 25 mm and welded through a steel deck is not included in theevaluation. Therefore, three expressions are listed in Table. 2 using the shear strength and total cross-sectional areaof the shaft component of a headed stud and headed stud tensile strength.
（2016 年 7 月 23 日原稿受理，2017 年 2 月 3 日採用決定）

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