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Re: ASTM A992 questions[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'SEAINT List Server'" <seaint(--nospam--at)seaint.org>
- Subject: Re: ASTM A992 questions
- From: Charlie Carter <carter(--nospam--at)aiscmail.com>
- Date: Tue, 9 Mar 1999 10:38:52 -0600
>Which of the <ASTM A992> supplemental tests should we >be calling out as a minimum? ASTM A992 is the same material you've been getting (on average) for wide-flange shapes for years now when you specified ASTM A36 or A572 grade 50. With that in mind, your practices regarding the specification of the supplemental testing requirements should not change. As one example, requirements for CVN testing are given in the AISC Specification for Structural Steel Buildings and AISC Seismic Provisions for Structural Steel Buildings. These requirements apply to ASTM A992 W-shapes just as they did to ASTM A36 and A572 grade 50 W-shapes. >Should ASTM A992 and the testing from question 1 be used only for >welded moment frames or should it also apply to eccentric and/or >special concentric braced frames? I recommend that you specify ASTM A992 as the default grade of steel for W-shapes in all applications (wind, low-seismic, and high-seismic in all systems involving W-shapes). For a more elaborate discussion of this please see my article "Are You Properly Specifying Materials; Part 1: Structural Shapes" (part 1 of a three-part series) in the January 1999 issue of Modern Steel Construction magazine. You can also view this online at www.modernsteel.com. Hope this helps. Charlie
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