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DOE-STD-3014-96
2.
perforation - to prevent perforation, required wall thickness is 120 percent
of the predicted perforation thickness;
3.
punching shear - to prevent punching shear failure, the predicted punching
shear stress should not exceed four times the square root of the
compressive strength of concrete (f'c) at the perimeter one-half the
effective depth away from the load, unless higher values can be justified
using Long's formula given in Appendix C, Section C.6.3.2.1.3.
b.
Local damage to steel targets:
1.
penetration - to prevent perforation of a steel target, the minimum wall
thickness required is at least 125 percent of the predicted penetration
depth.
c.
Excessive structural deformation or collapse:
1.
for concrete structural components - permissible ductility ratios as
specified in American Concrete Institute (ACI) Code 349;
2.
for steel structural components - permissible ductility ratios as specified in
section Q1.5.8 of American Institute of Steel Construction (AISC) Nuclear
Specifications, American National Standards Institute (ANSI) N690.
d.
Structure, system, and component (SSC) functionality:
1.
for evaluation by analysis - up to code allowable acceptance criteria given
in American Society of Civil Engineers (ASCE-4), American Society of
Mechanical Engineers (ASME) Boiler and Pressure Vessel Code, Institute
of Electrical and Electronic Engineers (IEEE)-344, and NUREG-0800, as
specified for safety-related SSCs;
35


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