Test Specimen A2

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B2
A1
A2
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B1

 

 

 

 

 

Summary of response for Specimen A2

Run #

Performance Level

Table Displacement
and Acceleration

Relative
Displacement 1

Base Shear
and Moment

PGA2
(g)

PGD3
(in)

Peak4
(in)

Residual5 (in)

Shear6 (kip)

Moment 7 (kip·in)

Long8

Lat9

Long

Lat

Long

Lat

Long

Lat

Long

Lat

Long

Lat

1

Yield Level
30% NF15/16

0.16

0.19

0.75

0.18

1.33

0.69

0.02

0

11.8

7.4

1298

723

2

Design Level 1
110% NF15/16

0.58

0.65

2.85

0.78

4.76

1.61

0.62

0.02

19.8

15.1

1719

658

3

Maximum Level 1
165% NF15/16

0.91

0.95

4.27

1.17

5.4

2.29

0.47

0.06

15.8

24.5

1701

756

4

Design Level 2
110% NF15/16

0.57

0.61

2.81

0.79

3.63

1.65

0.61

0.06

15.8

18.8

1503

681

5

Maximum Level 2
180% NF15/16

1.03

1.06

4.74

1.31

6.8

2.45

0.08

0.06

15.5

28.1

1694

830

6

Maximum Level 3
180% NF15/16

1.03

1.08

4.74

1.3

6.94

2.43

0.39

0.01

14.9

27.1

1671

824

7

Design Level 3
110% NF15/16

0.57

0.61

2.82

0.77

3.82

1.5

0.3

0

14.9

20.4

1352

607

8

Maximum Level 4
180% NF15/16

1.02

1.05

4.76

1.3

7.2

2.41

0.87

0.02

15

26.9

1656

814

9

Maximum Level 5
180% NF15/16

1.03

1.07

4.77

1.3

7.34

2.52

2.05

0.13

13.8

27

1420

789

10

Maximum Level 6
180% NF15/16

1.05

1.1

4.77

1.29

7.93

2.37

6.07

0.54

12.3

29.2

1360

825

 

1. Relative Displacement is the difference between the displacement of the center of mass and the table displacement = Block Disp - Table Disp

2. PGA: Peak Ground (Table) Acceleration

3. PGD: Peak Ground (Table) Displacement

4. Peak Relative Displacement assuming zero residual displacement at the beginning of the run

5. Cumulative Residual Relative Displacement at the end of the run

6. The shear force is estimated as the mass of the block times the acceleration at the center of the block, ignoring damping forces

7. Base moment is estimated using Newton's second law accounting for translational and rotational inertia forces and ignoring damping forces

8. Long: Measurements in the longitudinal direction

9. Lat: Measurements in the lateral direction