![]() ![]() #Lvl span table code#I actually recently had a plan checker tell me that the prescriptive code doesn't apply to the house you are building, then proceed to tear apart everything the engineer does, I'm finding the in most AHJs plan checkers are becoming progressively rougher, while field inspectors are becoming progressively nicer and easier to get along with. Beam must be centered in building if floor joists are continuous over the top. Ratio of short span to long span should be greater than 0.4. Span is based on the more restrictive of simple continuous beam span. I think your inspector is doing you a favor by agreeing to accept a manufacturer's engineering or span tables as opposed to providing engineering. Table indicates the number of 13/ 4' wide LVL plies to be used for the given application. McCryptic is right, go to T&W and find the name of the manufacturer whose product they are proposing to supply, then get their tables. To get an alternate approved you have to provide the engineering of the manufacturer of the exact product you are asking to be approved. You follow the prescriptive requirements (not allowed much around here anymore), get approved engineering (usually demanded around here), or get the AHJ to approve an approved alternate. Asking the question here is kind of a fun diversion asking them is more like work they have to (at least attempt to) do, and as noted, it's really the engineer's job. I kind of don't want to bother them with it, also. They're a good yard, but I don't know that I'd expect them to find a table you guys can't. Our VERSA-LAM LVL is manufactured in either Alexandria (Lena), Louisiana in Eastern United States, or in White City, Oregon for the Western United States. I have not called the local supplier (Truitt and White). VERSA-LAM laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors and structures. Partly it's that they are busy with what they deem as "real" work, largely it is a philosophical/professional push-back against the local AHJ's for demanding so much explicit stamped documentation for every effort to improve the wackadoo existing housing stock. Other manufacturers LVL may have different properties and therefore cannot be designed using these span tables. They take things extremely seriously up to a point, but often push back against (paid) extra work beyond the main structural elements of a job. Have you gone the sales rep route with the local supplier yet?It has taken me a while to accept the informal attitude of most engineers here about small (but not insignificant) changes/additional work orders. I seem to recall a joist table from maybe the early 90's but not after. When faced with similar in past I set the comparison using beam #'s then went back to lumber joist tables and imputed the lvl #'s and it was good enough for them, but that back when $5 and a bond bought a lic. Bearing wall, onCENTER LVL or glulam beam. All floor span tables in this guide reflect this enhancement. ![]() I wonder if there are some burning ears or slide rules over at in their version of a 'wazzup' (comes down w/o us) type thread thread. lumber (LVL) flanges and an enhanced OSB web. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |