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RE: tilet up wall anchor[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: tilet up wall anchor
- From: "Bill Cain, S.E." <bcain(--nospam--at)ebmud.com>
- Date: Wed, 18 Nov 1998 11:15:58 -0800
Dave A307 ductility derives from A36 Specification (20% in 8" gage length or 23% in 2"). A325 ductility derives from A449 Specification (14% in 4 Diameter gage length). The A325/A449 has a higher tensile strength (120 ksi for 1" and smaller) than the A307/A36 (58-80 ksi). As a general rule, the higher the tensile strength, the LOWER the ductility. So if the plan checker is looking for ductility, the A307 bolts have higher ductility. Why is he asking anyway? I assume you are sizing the bolts for the design loads. Either should be acceptable providing they meet the design requirements. Bill Cain, SE Oakland, CA -----Original Message----- From: Dave Anderson [SMTP:dnae(--nospam--at)home.com] Sent: Tuesday, November 17, 1998 20:04 PM To: seaoc Subject: tilet up wall anchor hi everyone is anyone has answer for a plan check correction it . will be thankful the plan check engineer wants me to specify the wall tie anchor to A325 steel rod not A307 first he said the reason is ductility after that he said is dynamic loading any answer Thanks D.A. P.E.
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