for publication development and application of tensile ... 9jul15/7... · weld built-up box column...

1

2015.7.9

Development and Application of Development and Application of 780N/mm780N/mm22 class Steel Platesclass Steel Plates

for Building Structuresfor Building Structures

Yukio Murakami

2015 RSA International Symposium ‘Latest Design and Construction Technologies

for Steel and Composite Steel-Concrete Structures’

JFE Steel Corporation

2Copyright © 2015 JFE Steel Corporation. All Rights Reserved.

ContentsContents

High Rise Buildings (Tokyo Shiodome Area)

1. 1. Outline Outline of High Strength Steel Platesof High Strength Steel Plates

2.2. ManufacturingManufacturing Process of High Strength Steel PlatesProcess of High Strength Steel Plates

3. 3. Material Standards & ApplicationsMaterial Standards & Applications of High Strengthof High StrengthSteel PlatesSteel Plates


Annual Construction Volume per floor area Annual Construction Volume per floor area in Japanin Japan

0

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

'05 '06 '07 '08 '09 '10 '11 '12 '13 '14

Con

stru

ctio

n flo

or a

rea （

x100

0m2 ）

Wooden Structure

SRC Structure

RC Structure

Steel Structure

Others37%37%


History of modern steel materialsHistory of modern steel materials

0

2

4

6

8

10

12

14

16

1955

1960

1965

1970

1975

1980

1985

1990

1995

2000

鉄骨加工量(百万㌧)

0

20

40

60

80

100

120

140

160

粗鋼生産量(百万㌧)

鉄骨加工量

粗鋼生産量

　　　　　　↑ 　　　　　　 ↑ ↑↑ ↑

SN鋼 ↓

TMCP極厚Ｈ形鋼↓

構造用ステンレス鋼↓

建築用TMCP鋼外法一定Ｈ形鋼低降伏点鋼建築用60K鋼 ↓

FR鋼 ↓

冷間成形角形鋼管　　　　　　　　　　 ↓

極厚Ｈ形鋼　　　　 ↓

ロールＨ形鋼　　　　　　　↓

高HAZ靱性鋼↓

Cold-formed RHS

Jumbo H-shape

Rolled H-shape

FR

TMCP Steel PlatesGr. 440 Steel

Low Yield Strength SteelStructuralStainless

Jumbo H(TMCP)

SN Steel

HBL385(TMCP)

KOBEEarthquake

MiyagiEarthquake

TokachiiEarthquake

(’80)RevisedSeismic Code

(‘00)RevisedSeismic Code

Annual Steel Fabrication(building)(million ton)

Annual Steel Production(million ton)

FabricationMill Production


History of HighHistory of High--rise Steel Buildingrise Steel Building1970 1980 1990

Structure: Higher & LargerSteel Member: Larger & Heavier

1968KASUMIGASEKI

1978Sunshine60

1993Landmark Tower

Steel Makers had developed TMCP steel plates,which provide higher strength, and enables reduction of member size.

Height 147m(36F) 226m(60F) 296m(70F)Frame Member WIDE-FLANGE(column) Circular Hollow Section

Width 400mm Diameter 1000mmThickness 60mm Thickness 100mm

1960


““Steel strength levelSteel strength level”” and and ““Type of applicationType of application””

490～550 570～610 690 780 980 1000 ≦

Buildings

Bridges

Tanks

Penstocks

Ships

Offshore structure

Line pipe

Machinery

Others

Application Tensile Strength level (N/mm2)

JFE-HT780T, HBL630-L(Low-YR)JFE-HT780W, H-SA700(High-YR)

*Akashi Ohashi Bridge

X100X80 X120

HYD960LEAbrasion Resistant Steel

HT230*Rocket motor case

*Submarine(Shinkai 2000)

*Kannagawa Hydropower Plant

HBL440

HITEN610

YP46

HYD1100LE

HBL385


BuiltBuilt--up Columnup Column

Inner diaphragm plate

Weld built-up box column

ESW

SAW

• Commonly adopted for high-rise building construction

• Applicable to plate thicknesses of 19~100 mm• Extremely large welding heat input

(300-1000 kJ/cm)• Welding: Automatic electro-slag welding (ESW)

and submerged arc welding (SAW)


ContentsContents


1. Outline of High Strength Steel Plates1. Outline of High Strength Steel Plates

2.2. ManufacturingManufacturing ProcessProcess of High Strength Steel Platesof High Strength Steel Plates

3. Material Standards & Applications of High Strength3. Material Standards & Applications of High StrengthSteel PlatesSteel Plates


CoolingHeating

Super-OLAC

Hot levellerRolling

On‐Line Acceｌeｒated Cooling

Manufacturing Process of Steel PlateManufacturing Process of Steel Plate

CuttingInspectionMarkingTempering

Quenching, Normalizing

Heat treatment

AcceleratedCooling

Heat-treatment On-line ProcessHOP

Heattreatment

Fukuyama Works


Manufacturing Process of 780N/mmManufacturing Process of 780N/mm22 SteelSteel

RQ-T type

DQ-HOP type

Reheated Quenching & Tempering

Direct Quenching & Tempering

Water CoolingRolling

Tempering

Temperature

RQ Q'

Rolling

RQ Q' T

Temperature


Manufacturing Process of 780N/mmManufacturing Process of 780N/mm22 SteelSteel

RQ-T

DQ-HOP

Water Cooling

Online Tempering

Reheated Quenching

Tempering


ContentsContents


1. Outline of High Strength Steel Plates1. Outline of High Strength Steel Plates

2.2. Manufacturing Process of High Strength Steel PlatesManufacturing Process of High Strength Steel Plates

3. 3. Material Standards & ApplicationsMaterial Standards & Applications of High Strengthof High StrengthSteel PlatesSteel Plates


780N/mm780N/mm22 Class SteelClass Steel

DQ-HOP

YR(%)

Low-YR

Platethickness

（mm）

H-SA700700～

900

780～

1000

DesignationYS

(N/mm2)TS

(N/mm2)

22～100

12～40

6～50

HITEN780T

HBL630-L

630～

750

780～

930

630～

750

780～

930

RQ-T

Remarks

≦ 85

≦ 85

≦ 98 High-YR


780N/mm780N/mm22 Class Class ①①

0 ℃ 47≦(t≦ 50mm)#5:min.24(t≦100mm)#4:min.16Min.780 max.930Min.630 max.750

C

BHITEN780(Low-YR)

(RQ-T)

0 ℃ 47≦(12≦t≦16mm) #5 :min.16(16＜t≦40mm) #5 :min.24(20＜t≦40mm) #4 :min.16

Min.780 max.930Min.630 max.750C

BHBL630-L(Low-YR)(DQ-HOP)

0 ℃ 47≦( 6≦t≦20mm) #5 :min.16(20≦t≦50mm) #4 :min.16min.780 max.1000min.700 max.900

AH-SA700(High-YR)(DQ-HOP) -20 ℃ 47≦B

-60 ℃ 47≦QL1

-40 ℃ 30≦QL

-20 ℃ 30≦

min.14(Lo=5.65√So)

( 3< t≦ 50mm)min.770 max.940

( 50<t≦100mm)min.760 max.930

(100<t≦150mm)min.710 max.900

( 3< t≦ 50mm) min.690( 50<t≦100mm) min.650(100<t≦150mm) min.630

Q

EN10025-6S690

Elongation(%)

ImpactEnergy (J)

Tensile Strength(N/mm2)

Yield Strength(N/mm2)Designation


780N/mm780N/mm22 Class Class ②②

Max.0.60*

－－－－－－－－－－

Max.0.015

Max.0.030Max.

2.5Max.0.55

Max.0.12

BHBL630-L(Low-YR)(DQ-HOP) Max.

0.60*Max.0.008

Max.0.015C

Max.0.008

Max.0.60*

Max.0.60*

－－－－－－－－－－

Max.0.015

Max.0.015

Max.0.030Max.

1.60Max.0.55

Max.0.18

C

BHITEN780(Low-YR)

(RQ-T)

max.0.60*B

max.0.83

max.0.77

max.0.020

max.0.020

max.0.020

max.0.020

－

QL1

QL

A

Q max.0.65

max.0.15

max.0.12

max.0.05

max.2.0

max.0.060

max.0.70

max.0.50

max.1.50

max.0.005

max.0.015

max.0.025

max.0.025

max.1.70

max.0.80

max.0.20EN10025-6

S690

max.0.65*

－－－－－－－－－max.0.015

max.0.025

max.2.00

max.0.55

max.0.25

H-SA700(High-YR)(DQ-HOP)

*Cev

ZrCuCr NbMo TiNi CeqVBNSPMnSiCChemical Compositon（％）Designation


Sample of SSample of S--S CurveS Curve

RQ-T(HITEN780T)

HighHigh--YRYR (≦98%) LowLow--YRYR (≦85%)

DQ-HOP(H-SA700)

Strain (%) Strain (%)

DQ-HOP(HBL630-L)

Stress (N/mm2) Stress (N/mm2)


Test ParameterTest ParameterCross-section typeWidth-Thickness ratio (B/t)

LoadingLoading

BOXBOX HH--shapeshapeRHSRHS PipePipe

Examination itemExamination item・ Local buckling behavior ・ B/t - Stress increase・ B/t - ductility

HighHigh--YR (DQYR (DQ--HOP) Stub Column TestHOP) Stub Column Test


0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.00

5

10

15

20

YS650A YS650B 従来鋼

塑性

率μ

無次元化径厚比

H-SA700AH-SA700B

Non-dimensional B/t

0 10000 20000 30000 40000 50000 600000.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

σ/YS

平均ひずみ (μ)

0 10000 20000 30000 40000 50000 600000.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

σ/YS

平均ひずみ (μ)

D/t=15

171922

28

25

D/t=15

1821253036

BOX Pipe

15(A)

15(A)

0.050 0.075 0.100 0.125 0.150 0.175 0.2000

5

10

15

20

YS650A YS650B 従来鋼

塑性

率μ

無次元化径厚比

H-SA700AH-SA700B

Non-dimensional B/t

HighHigh--YR (DQYR (DQ--HOP) Stub Column TestHOP) Stub Column Test

Average strain (μ) Average strain (μ)

Conventional Conventional

Ductility Ductility


Test specimen

Examination itemExamination item・・ Bending behaviorBending behavior

in compressionin compression--sideside・・ Behavior of plastic deformationBehavior of plastic deformation

HighHigh--YR (DQYR (DQ--HOP) Cyclic Loading TestHOP) Cyclic Loading Test

JackJack


0

1

2

3

4

5

6

7

8

9

10

0.5 1.0 1.5 2.0

一般化幅厚比

塑性

率

Stub ColumnCyclic Bending

012345678910

0.05 0.10 0.15

一般化幅厚比

塑性率

HighHigh--YR (DQYR (DQ--HOP) Cyclic Loading TestHOP) Cyclic Loading Test

Non-dimensional B/t Non-dimensional B/t

Stub ColumnCyclic Bending

Ductility Ductility


■Inter-story drift⇒ 1/75

■Columns, Beams, Floors⇒ No damage

Floor area ：98.0m2

（14.0m×7.0m）

Height ：16.0mStory ：4F/8F

No damage

HighHigh--YR (DQYR (DQ--HOP)HOP) FullFull--scale Testscale Test


☆Tensile Test

☆Chemical Composition ☆Charpy Impact Test

◎Lowering Carbon & Cev content

Improving Weldability: hardenability & cold-crack-suceptibility& HAZ toughness

化学成分重量% 鋼種板厚

mm C Si Mn P S Ceq PCM

25 0.06 0.18 1.99 0.011 0.002 0.54 0.24HBL630-L 40 0.06 0.19 1.99 0.011 0.002 0.55 0.24

鋼種板厚 mm

降伏応力N/mm2

引張強さN/mm2

降伏比%

破断伸び%

25 733 900 81 38 HBL630-L 40 675 830 81 45

LowLow--YR (DQYR (DQ--HOP)HOP)

Design. Thick. Chemical Comp. wt %

Thick.Design. Yield Str. Tensile Str. Yield ratio Elongation

Long-dir.


LowLow--YR (DQYR (DQ--HOP) Welding Joint GMAWHOP) Welding Joint GMAW

0

50

100

150

200

250

300

WM FL HAZ1mm HAZ3mm

Impact Energy ＠0℃

Charpy impact Test Vickers Hardness Test

Process Groove Shape Macro Etch Weld Condition Tensile Strength

Weld-wire： MG-80Heat-imput: 21kJ/cmPreheat： N.AInter-pass： max.150℃


specimenHBL630

θD

θ d

ピンローラー

台車

10,000kN試験機クロスヘッド

試験体

LowLow--YR (DQYR (DQ--HOP) HOP) Bending TestBending Test

[Objective]Evaluating Plastic Deformation Capacity of Welded-Box Section column

[Loading schedule]Plastic Rotation Angle θp×１，×２，×３，・・・(two cycles each)


-5000

-4000

-3000

-2000

-1000

0

1000

2000

3000

4000

5000

-0.06 -0.04 -0.02 0.00 0.02 0.04 0.06

回転角 [rad]

モー

メン

ト [

kN m

]

M2 test spec.□400x25Inner-diaphragm Mp

-Mp

fracture

Ductility Factor3.0

Ductility Factor 3.0

25

Loading jig

column

LowLow--YR (DQYR (DQ--HOP) HOP) Bending TestBending Test

Rotation

Moment [kN･m]


Application of High Application of High StrenghStrengh SteelSteel

View from our office(Tokyo)

Tokyo Station

Hibiya Park

Imperial Palace

Tokyo Sky Tree

27

I thank you for your kind attention.

for publication development and application of tensile ... 9jul15/7... · weld built-up box column...

Documents