Document: NUREG-0800
Document ID: 838f03f5-e038-48e3-9af7-74af5e319676
Document Type: srp
Title: through 3.5.3.3 for earth retaining walls).
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0705/ML070550054.pdf
Revision Date: 2023-06
Chapter: 3
Section ID: 3.5.3.1
CFR Part: 
CFR Title: 

Content:
0 but not to exceed 0.9 fy Shear reinforcement and/or bolts 1.5 3.8.4-22 Revision 2 - March 2007 Masonry tension parallel to bed joint 1.5 Shear carried by masonry 1.3 Masonry tension perpendicular to bed joint for reinforced masonry 0 Note: When anchor bolts are used, the design should prevent facial spalling of masonry unit. 4. Design and Analysis Considerations A. The analysis should follow established principles of engineering mechanics and take into account sound engineering practices. B. The assumptions and modeling techniques used should give proper consideration to boundary conditions, cracking of sections, if any, and the dynamic behavior of masonry walls. C. Damping values to be used for dynamic analysis should be those for reinforced concrete in accordance with guidance provided in RG 1.61. D. The seismic analysis should account for the variations and uncertainties in mass, materials, and other pertinent parameters used. E. The analysis should consider both in-plane and out-of-plane loads. F. The analysis should consider interstory drift effects. G. In new construction, no unreinforced masonry wall is permitted; also, all grout in concrete masonry walls should be consolidated by vibration. H. For masonry shear walls, the minimum reinforcement requirements shall be as provided in ACI 531. I. The acceptance of special construction (e.g., multiwythe, composite) or other items not covered by the code will be reviewed on a case-by-case basis. J. Applicants should submit for review the quality assurance/quality control (QA/QC) information. In the event QA/QC information is not available, a field survey and a test program reviewed and approved by the NRC staff should be implemented to ascertain the conformance of masonry construction to design drawings and specifications (e.g., rebar and grouting). K. The criteria recommended in SRP Section 3.5.3 should apply for masonry walls requiring protection from spalling and scabbing resulting from accident pipe reaction