when designing a bolted single plate shear connection, beam to column, is it appropriate to use manual table 7-1 for shear strength of bolts or should table 7-3 be used for slip as a serviceability limit state?
the examples given in the manual companion use different methods for this...
If you have a rectangular HSS bearing on an unstiffened angle seat connection, which limit state do you use to find the required bearing length for web crippling? K1-4 of 13th edition?
the seat will be slightly wider than the HSS width to allow for flare welds
TIA
I have a question(s) concerning applied axial forces to an HSS column connection, given:
HSS 8x8x5/16 with W14 beam framing into it.
axial load is 5k
vert reaction 25k
moment is 50 k-ft
part twelve of the manual page 12-26 says the WT tees should be long enough to use flare welds at the corners...
hello all,
does any one have experience using descon brace software for braced frame connections?
if so, what feedback would you give, and have you ever checked results with hand calcs?
TIA
how does AISC 13nth edition handle connections (simple two bolt shear tab) with combined shear and axial load?
in section 9-3 discussion is made about not combining stresses. user is refered to spec J to design connection elements.
would spec H be used for connection elements?
thanks in...
given in contract docs....
unfactored ASD axial load of 10 kips
to design the connection with LRFD
we take factored axial load = 1.0 x E
where E = 10 kips
or .....
factored axial load = 1.0 * (E/0.7)
0.7 being the ASD load factor
If a document (dwg or spec) mentions unfactored ASD load, in...
in ny state we have to dig a 6 foot hole to check the soil layers for high water mark, clay etc.
the other morning we did a test hole, here are the results
0-4" SANDY TOPSOIL, ROOTS
4-20" GRAY FINE SANDY LOAM
20-32" BROWN SANDY GRAVEL, COURSE
32-63" DARK SAND W/ CLAY & GRAVEL
63-66" GRAY CLAY...
hello, i just started a consulting business as a sole proprietor and need some advise on keeping current with SE tax. i have heard that you have to pay SE tax quarterly but it seems all the forms on IRS website are for annual returns. can anyone shed some light on this for me?
can someone walk me through the steps for calculating fatigue moment for a simple span bridge, span 80', rolled section, service load on one beam: 625 plf DL, 425 plf LL.
thanks
code is AASHTO 2002, using LFD
Hello,
I am designing a double angle lintel for a 9' opening in an exisitng clay brick wall. the wall is fairly large, 16" thick solid, about 50' tall. I am going to use a double 8x8x9/16 angle to jacket the 16" wall.
loading is 1000 plf unfactored applied to the horizontal legs of the angles -...
Hello,
I have been approached by a timber frame manufacturing company that needs engineering services. I have some experience in wood design but have not designed a timber frame before. was wondering if anyone on this site could offer any advice. tongue and mortice joints are used, white pine or...
hello,
I recently got my PE in NYS and am considering a position with a contractor who does a siginificant amount of septic work. question: can we ethically offer design build services to clients. design, stamped plans as the first step, then installation of the septic system?
i came from a...
Hello all,
I am preparing plans for a client who is doing a 24x35 addition onto an exisitng truck garage. he wants to use a pole buildingsince the existing build. ia a pole structure. the building inspector told him the common wall must be fire rated but would not spec what rating..1, 2 or 3...
hello,
I am reviewing and stamping a set of plans for 44x28' A frame house with 12/12 pitch roof. the owner wants me to add a dormer for the upstairs bathroom. on the building section I noticed a skylight detail with a header above the skylight. the header is shown square to the rafters...
I am designing a beam for an elevated exterior deck, the span is kind of long - 20' post to post. loading is 265 plf. at first i had spec'd lvl but do not want use that on an exterior application exposed to rain / moist. if i spec a built up beam w/ 1/2" x 11.25" A36 plate and (2) treated 2x12...
has anyone used this company's products to repair a foundation wall? A home owner has asked me for a repair method other than casting pilasters or using tiebacks. this company has developed very strong kevlar strips that act as tensile reinforcemnt - they are glued to the exisitng concrete.
