Transmission mechanism of seismic force in steel roofs and RC frames by Yuki Yamaguchi Tomomi Fujita Masayuki Hando

1

2011 2016RC

RC1)

,

2) 3

2 2.1

1 3 10.2sec 0.4sec

1.6kg 1.6kg 2

1

230gal El-centroNS (1940 Imperial Valley ) EW (1978

) JMA NS (1995 ) 1m/sec2

1 10mm 15mm 20mm

312

k

(1)

東北地域災害科学研究　第55巻（2019） 133

I 2 E [195000 N/ mm2] H

2.2

3

44

ε

(3) (4)

Z b h E [195000 N/ mm2]

1 N/mm mm

1 2 3 4 5 6 7 8 9 10 11 12

0.57 (20)

0.43 (15)

0.28 (10)

0.57 (20)

0.43 (15)

0.28 (10)

0.57 (20)

0.43 (15)

0.28 (10)

0.57 (20)

0.43 (15)

0.28 (10)

0.57×2

(20×2) 0.57×2 (20×2)

0.57×2 (20×2)

0.43×2 (15×2)

0.43×2 (15×2)

0.43×2 (15×2)

0.28×2 (10×2)

0.28×2 (10×2)

0.28×2 (10×2)

※ mm

3 1

1 EW 2

CASE

134

3

3.1

CASE 1 1 24

4 12

1

2.5~3.5 21

2~3

3.2

CASE1 CASE6

5 6

7 ,

CASE1 3

5

(a) 1 4.9Hz 30gal (b) 2 6.5Hz 30gal

4 CASE1 20mm

(a) CASE1 20

(b) CASE6 10 20

1 2

1.08(4%)

1.16(4%)

30.419.5 19.4 9.54

5.53(58%)

-7.90 -8.00

-7.79 -7.79

1.11(6%)

1.15(6%)

36.2(119%)

51.7 -51.7

4.69(15%)

4.76(15%)

4.47(23%)

4.35(23%)

31.121.3 21.2 9.76-8.60 -8.70

(a) CASE1 20

(b) CASE6 10 20

6

11.3

16.3(142%)

2.02 1.49

7.13 6.16

2.87(26%)

2.96(26%)

1.68(26%)

1.70(26%)

6.522.09 1.92

9.86(151%)

4.98 4.92

6.682.27 2.10 11.52.19 1.63

0.94(7%)

13.7

0.91(7%)

4.15 3.87 8.793.76

0.61(7%)

0.62(7%)

15.0(109%)

13.913.9 11.4(130%)

12.112.1

3.68(27%)

4.06(30%)

2.72(31%)

2.59(29%)

3.82

14.04.51 4.21 4.10 9.00 4.16

2.79(26%)

2.97(27%)

10.81.29 1.50 8.35

6.15(74%)

-15.6 -17.6

-25.6 -29.7

4.72(57%)

4.51(54%)

16.0(148%)

6.00 6.08

1.40 11.1 1.63 8.55-16.9 -19.2

m

/s2

135

CASE4 12

12

1

4 4.1

SNAP

8 2

1 2

CASE1-3 CASE 4-6 CASE7-9 CASE10-12

(b)

(a)

7

2

kgmc1 1.84

mc2 1.76

kg mr1 1.67 mr2 1.67

N/mmkc1 4.78 kc2 2.39

N/mm20mm kR 0.54 15mm kR 0.41 10mm kR 0.27

N/mm)20mm kL 0.54 15mm kL 0.41 10mm kL 0.27

8

0

0.2

0.4

0.6

0.8

1

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35

CASE1CASE2

CASE3

CASE12

CASE9

CASE7

CASE6

CASE5

CASE4CASE1

CASE2CASE3

CASE12 CASE11

CASE10

CASE8

CASE6

CASE5

CASE4

CASE11

CASE10CASE7

CASE9

0

0.2

0.4

0.6

0.8

1

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35

CASE1

CASE2

CASE3

CASE12 CASE10

CASE9CASE8 CASE7

CASE6

CASE5CASE4

CASE1CASE2

CASE3

CASE12CASE11 CASE10

CASE8

CASE6 CASE5CASE4

CASE9CASE7

CASE11

mr2mr1

mc2mc1

kRmr1

mc1

kR

kL kL

kc1 kc1kc2

136

4.2

9

10

1 2

10 5

CASE1 CASE7

CASE6 CASE7

CASE7

CASE1 2

10(c) CASE7 20 15

1 2

(a) CASE1 20

(b) CASE6 10 20

-20

-10

0

10

20

0 1 2 3 4 5 sec

9

(a) CASE1-4.8Hz

(b) CASE1- El-centroNS

3.24(26%)

3.24(26%)

12.1

5.85(47%)

2.35 2.35

5.61 5.61

3.26

-0.77(-24%)

-7.13

-5.07 -5.07

2.02(62%)

2.02(62%)

18.5 8.198.19

2.56 2.5612.7

2.59 -12.8-12.8

-7.76 -7.763.36

-7.13

20.9 22.622.6

9.34

15.7

1.08(7%)

13.5(86%)

1.08(7%)

8.25 8.25 2.04

1.44(71%)

-2.25 -2.25

-1.91

0.30(15%)

0.30(15%)

9.34 -1.91

4.304.308.99 8.9916.0

1.13 -3.11-3.11

1.211.212.44 2.442.08

2.15(14%)

15.7

11.3(72%)

2.15(14%)

8.26 8.26

10.4

2.04

0.84(41%)

-2.24 -2.24

-1.61

0.61(30%)

0.61(30%)

10.4 -1.61

20.9 22.722.7

3.243.24 0.910.918.99 8.9916.0 -2.44 -2.442.08

1.12 -3.11-3.11

m

/s2

m/s

2

137

0.13sec 0.1sec 0.05sec

0.3m/sec2

1

11

1.0 1

1.00.5

5 RC

1)

2012

2) RC40 pp.787-792 2018

11

(a)

(b)

-0.4

-0.2

0

0.2

0.4

0.6

0.8

0 0.5 1 1.5 2 2.5

T=0.20

T=0.13T=0.10T=0.05

-0.4

-0.2

0

0.2

0.4

0.6

0.8

0 0.5 1 1.5 2 2.5

T=0.20

T=0.13T=0.10T=0.05

138