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Re: Steel Connections[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: hjii(--nospam--at)leland.Stanford.EDU, seaoc(--nospam--at)seaoc.org
- Subject: Re: Steel Connections
- From: Rick.Drake(--nospam--at)fluordaniel.com
- Date: Tue, 19 Aug 1997 14:14:00 -0400
hjii(--nospam--at)leland.Stanford.EDU said <<Has anyone used Grade 5 cap screws for connections rather than A307 bolts? The tensile strength does not seem to be an issue but I can't find anywhere in the code that allows for this. Is the intent of the code to allow only the use of A307, A325 and A490 bolts for structural connections?>> The AISC specifications (both ASD and LRFD) clearly require material conformance with an ASTM specification. These specification specify minimum requirements for manufacture, testing, and strength. Grade 5 materials are not subject to the same quality steps, even if the basic chemical content is similar to ASTM A307. The AISC specifications do contain provisions for "Unidentified Steel" for "parts of minor importance" Reference ASD Specification A3.1.b and LRFD Specification A3.1b. Rick Drake, SE Fluor Daniel, Inc.
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