Table 2 Structural damage factor interval for different damage states.

From: Overall structural seismic damage rapid assessment method based on period and displacement response characteristics

References

Elastic threshold

Slight damage

Moderate damage

Severe damage

Destroy

Chinese seismic design code

1/550

1 ≤ λ < 2.2

2.2 ≤ λ < 4.58

4.58 ≤ λ < 9.17

9.17 ≤ λ

FEMA273

1/500

1 ≤ λ < 5

5 ≤ λ < 10

10 ≤ λ < 20

20 ≤ λ

Vision 2000

1/500

1 ≤ λ < 2.5

2.5 ≤ λ < 7.46

7.46 ≤ λ < 12.5

12.5 ≤ λ

ATC40

1/500

1 ≤ λ < 5

5 ≤ λ < 10

10 ≤ λ < 15.15

15.15 ≤ λ

LU Xilin

1/500

1 ≤ λ < 1.667

1.667 ≤ λ < 3.333

3.333 ≤ λ < 10

10 ≤ λ

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