http://dx.doi.org/10.5659/JAIK_SC.2014.30.11.21

30 11(313) 2014 11 21

TSC CRC

Seismic Performance Test of TSC Composit Beam to CRC Composit Column Connections

* **

Jung, Jea-Chun Lee, Chang-Nam

*** ****

Lee, Seung-Hwan Kim, Hyoung-Seop

Abstract

The Centrifugal Reinforced Concrete(CRC) column developed by SEN Engineering is a method utilizing PHC(Prestressed High

Strength Pre-Stressed Concrete) piles as columns. The CRC column is able to obtain the maximum capacity as for a reinforced

concrete column due to its manufacturing method using centrifugal force to produce high strength concrete same for PHC and

inserting a reinforced cage instead of a pre-stressed wire decreasing compressive strength in PHC. This expeditious and

economical way to produce concrete of strength more than 80MPa by centrifugal casting makes CRC columns be easily and

quickly applied to the construction site than PC(Precast Concrete). CRC column is not only improve applicability but it also

enhances constructability because its buckling capacity higher than H-section column leads to increase the depth of penetration.

If a required service load is higher than the capacity of the CRC column, it can be reinforced by additional concrete casting with

re-bars in the site to obtain sufficient strength. The seismic resistance performance of the CRC column-to-TSC beam connection

is previously demonstrated in accordance with KBC 2009 by experimental test, and the real scale test of the connection is

conducted in this study. As a result, the seismic resistance performance of the connection meets the requirements of KBC2009;

therefore, the CRC column-to-TSC beam connection can be used as IMF or SMF.

: PHC , , CRC , , - ,

Keywords : PHC Pile, High Strength Concrete CRC Column, Top down method, Beam-column connection, Seismic connection

1. CRC(Centrifugal Reinforced Concrete)

1.

,

.

,

, .

(Centrifugal Reinforced Concrete Column, CRC

) ,

* ,

(Corresponding Author, E-mail : JCJUNG@senkuzo.com)

** , ,

*** , MBA,

**** , ,

2014

(14CTAP-C062219-03-000000)

.

PHC (Prestressed High Strength Concrete Piles)

,

.

PHC ,

, CRC

22 30 11(313) 2014 11

2. CRC

3. CRC

4.

,

1),2),3) .

CRC PHC

, PHC

. PC(Precast Concrete)

80MPa

.

, 43

( 25m) SRC

30% .

2.

CRC , H

. ,

, ()

CRC (3). CRC

4)

.

CRC

, SRC

,

.

CRC U ( TSC

) 3)

KBC20095)

. CRC

. TSC CRC

,

.

1) TSC CRC

.

2) 4

.

3)

.

3.

3.1

CRC , TSC

4

TSC CRC

30 11(313) 2014 11 23

(a) JC-1 (b) JS-1

(c) JC-2 (d) JS-2

6.

JC-1*, JC-2* JS-1*, JS-2*

TSC

(MPa)

24 24

4-D25(SD500) + 4-D10(SD400)

TSC (xx)

350x270x6(SM490)

3-16@150

( x )

1000mm x 150mm

(kNm)

+664.9, -695.9

CRC

CRC CRC

400mm 70mm

400mmx400mm 80mm

6-D16(SD400)

4-D19(SD400)

D13@300(SD400)

D13@300(SD400)

(MPa)

80MPa 80MPa

700700(12-HD25)

700700(12-HD25)

12-D25(SD500)

12-D25(SD500)

D13@200(SD400)

D13@200(SD400)

(MPa)

24MPa 24MPa

(kNm)

1014.0 892.4

(SM490) 9 mm 9 mm

* J C - 1

1 1

2 2

JC Joint Circle ( CRC )

JS Joint Square ( CRC )

1.

(MPa) (MPa)

C24 24.8 2.74

C80 83.0 1.13

SM490 420.1 13.65

SD500 650.0 3.46

SD400 477.3 1.15

2.

5.

,

2 .

JC-1 JC-2 400mm

70mm CRC , JS-1

JS-2 400mm x 400mm

80mm CRC

. TSC

350mm x 270mm x 6mm(xx) ,

150mm . 4

, 1

. JC-1,2( 4.a) TSC

,

JS-1,2( 4.b)

.

TSC TSC

, 2

.

TSC TSC

, .

TSC CRC KBC

20095)

, 4),6),7)

. TSC

TSC

. -

2.0

.

2 .

3.2

5

, 6

. (Hc)

24 30 11(313) 2014 11

StoryDrift1%

JC-12 JS-12 JC-12 JS-12 JC-12 JS-12 JC-12 JS-12

-

StoryDrift3%

StoryDrift4%

StoryDrift7%

JS-2

7.

Cyclic TestStoryDriftAngle(radian)

ActuatorStroke(mm)

6 cycles 0.00375 11.3

6 cycles 0.005 15.0

6 cycles 0.0075 22.5

4 cycles 0.01 30.0

2 cycles 0.015 45.0

2 cycles 0.02 60.0

2 cycles 0.03 90.0

2 cycles 0.04 120.0

2 cycles 0.05 150.0

2 cycles 0.06 180.0

3.

2,500mm , (La) 3,000mm .

2,000kN, 250mm

,

. ,

KBC2009 0722.2.4.2 -

0.375%, 0.5%, 0.75%

6 , 1.0% 4

, 1.5%, 2.0%, 3.0%, 4.0%, 5.0%, 6.0%,

7.0% 2 ( 3).

LVDT

,

, , ,

.

-+:

(1)

- :

(2)

- :

(3)

- : (4)

TSC ,

, CRC

.

4.

4.1

CRC (JC-1,2) CRC

(JS-1,2) ,

TSC CRC

30 11(313) 2014 11 25

8. -

7 . -

,

.

0.00375rad ,

,

. 0.03rad

,

.

,

.

JS-2

,

.

JC-1,2 0.02rad,

JS-1,2 0.015rad

,

.

,

0.03rad TSC

,

.

.

.

(1)

(2)

0.06rad 50

70% , 0.07rad

8090% , 0.07rad

.

4.2 -

8 -

, 9 .

KBC 2009

0.04rad 0.05rad0.07rad

80%

.

0.05rad 80%

,

0.07rad 80%90%

.

9 +,

, (1) (4)

.

26 30 11(313) 2014 11

Vp,u(kN) Drift ratio Vp,n(kN) Ratio Vp,e(kN) RatioMax Driftratio

JC-1 250.6 0.043 237.5 1.06 288.5 0.87 0.060 1.89

270.0 0.049 248.5 1.09 296.7 0.91 0.070 3.15

JC-2 253.8 0.040 237.5 1.07 288.5 0.88 0.060 3.30

285.0 0.040 248.5 1.15 296.7 0.96 0.070 4.59

JS-1 254.3 0.040 237.5 1.07 288.5 0.88 0.060 1.68

287.6 0.049 248.5 1.16 296.7 0.97 0.070 4.89

JS-2 261.6 0.037 237.5 1.10 288.5 0.91 0.060 2.52

263.7 0.049 248.5 1.06 296.7 0.89 0.068 3.00

Vp,u : , Vp,n : ( ), Vp,e : ( ), :

4.

9.

LVDT

.

1%

,

.

LVDT

.

,

.

10%

.

70%80% ,

10%20%

. ,

40%50%, 40%50%

2 .

4%

4.1

.

1% JC-12 JS-12

,

4% JC-12

JS-12

10%

. JS-12

,

.

4

,

. 4,

,

.

,

, 12 -

.

4 10

. Paulay, Priestley8)

( 11),

75%

,

80%

. CRC (JC-1,2)

CRC (JS-1,2) ,

TSC CRC

30 11(313) 2014 11 27

P

y u

P max

P maxP max

(0.8)(0.75)

10. Envelope curves 11.

12. -

.

3.0 ,

JC-2 JS-2 3.30 2.52

JC-1 JS-1

1.89 1.68 .

JC-1 JS-1

,

75% , 10

.

4.3 -

12

- ,

- .

,

,

, .

,

,

, .

, ,

28 30 11(313) 2014 11

.

JS-1,2 JC-1,2

,

, JS-1,2

.

JC-1

, -

TSC

.

5.

CRC , TSC

4

, .

(1) -

, -

.

,

.

(2) CRC (JC-1,2) CRC

(JS-1,2) ,

0.05rad,

0.07rad

KBC2009

0.04rad .

(3)

,

.

(4) CRC (JC-1,2) CRC

(JS-1,2) ,

.

(5) CRC (JC-1,2) CRC

(JS-1,2) ,

.

(6)

,

.

(7) -

,

,

.

TSCCRC

KBC2009

.

,

,

.

KBC2009

.

, CRC RC, H

,

.

.

1. , , , , , , , PHC

,

, 27, 1, p.p. 127130, 2007

2. , , , PHC

, , 25, 2,

p.p. 2936, 2009

3. , , , , , , ,

U ,

, 23, 1, p.p. 8397, 2011

4. , , , , CR

C ,

, 33, 2, p.p. 527528, 2013

5. (2009) (KBC2009)

6. , , , , , T

, , 16,

2, p.p. 225233, 2004

7. , , , TSC

, , 22,

1, p.p. 1117, 2006

8. T. Paulay and M.J.N. Priestley, Seismic design of reinforce

d concrete and masonry buildings by Wiley, New York, 19

92, 744pp

(Received 2014.7.4 Revised 2014.9.2 Accepted 2014.11.6)