Document: NRC Regulatory Guide
Document ID: 0983c879-43f8-412c-9dbd-bbadabdfe3f3
Document Type: regulatory_guide
Title: Mechanical (Rev. 1)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1306/ML13064A126.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.10
CFR Part: 
CFR Title: 

Content:
remain functional. See Safety Guide 29, "Seismic Design Classification." is not normally controlled to an extent that would permit reliable welding, and (2) the lapping of these bars is prohibited by applicable codes (American Concrete Institute: Building Code Requirements for Reinforced Concrete, ACI 318-71). Visual inspection of all the mechanical splices is the fundamental inspection technique, and it can reveal certain deficiencies. However, some splices that pass the visual inspections may not meet tensile test specifications. In order to provide a check on the visual inspections, and to detect symptomatic deficiencies, destructive testing of some splice samples is considered essential as a supplement to the visual inspections. A suitable destructive testing program would provide an adequate basis for assuring that-mechanical splices made on in-place reinforcing bars achieve at least the load- carrying capability of the bars. The testing program in this guide is generally based on present industry practice, and is directed at sampling typical, highly redundant bar-to-bar. tensile mechanical splices. C. REGULATORY POSITION The following procedures should be used for the testing of reinforcing bar mechanical splices in Category I concrete structures: 1. Crew Qualification: Each member of the splicing crew (or each crew if the members work as a unit) should prepare two qualification splices for each of the splice positions (e.g., horizontal, vertical, diagonal) to be used. The qualification splices should meet the requirements specified by the designer of the structure and approved by the licensee, pass visual inspection as provided by paragraph 2 below, and meet the tensile tests as provided by paragraph 3 below. USAEC REGULATORY GUIDES Copies of published guides may be obtained by request indicating the divisions desired to the U.S. Atomic Energy Commission, Washington, D.C. 2084,. Regulatory Guides we issued to describe and make available to the public