Table 2-5 Summary of Earthquake Evaluation Provisions

DOE-STD-1020-2002

Table 2-5 Summary of Earthquake Evaluation Provisions

Performance Category (PC)

(MCE) G.M.2

(MCE) G. M.2

1x10-4

4x10-4

Hazard Exceedance

Probability, PH

(1x10-3)1

(2x10-4)1

Response Spectra

Median amplification

(no conservative bias)

Damping for

Table 2-3

Structural Evaluation

Acceptable Analysis

Static or dynamic force method

Dynamic analysis

Approaches for

normalized to code level base

Structures

shear

Analysis approaches for

IBC Force equation for

Dynamic analysis using in-

systems and components

equipment and non-structural

structure response spectra

elements (or more rigorous

(Damping from Table 2-2)

approach)

Seismic Use group

Seismic Use

Not used

Group I

Group III

Load Factors

Code specified load factors

Load factors of unity

appropriate for structural

material

Scale Factors

Not Used

SF = 0.9

SF = 1.25

Inelastic Energy

Accounted for by R in IBC 2000

F from Table 2-3 by which

Absorption Ratios

elastic response is reduced to

account for permissible inelastic

For Structures

behavior

Material Strength

Minimum specified or 95% non-exceedance in-situ values

Structural Capacity

Code ultimate strength or

allowable behavior level

limit-state level

Quality Assurance

Required within a graded approach (i.e., with increasing rigor

Program

ranging from the IBC requirements from PC-1 to nuclear power

plant requirements for PC-4)

Peer Review

Not Required

Required within a graded approach (i.e., with

increasing rigor ranging from IBC requirements

from PC-2 to nuclear power plant requirements for

PC-4)

For sites such as LLNL, SNL-Livermore, SLAC, LBNL, & ETEC which are near tectonic plate boundaries.

MCE GM = Maximum considered earthquake ground motion (generally, PH = 4x10-4 ) - for Seismic Use Group I

(PC-1) use 2/3 MCE, for Seismic Group III (PC-2) use 2/3 MCE with importance Factor of 1.5.

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