blake989: Just to let you know that I've received your fax, thanks! Excellent info!!
youngstructural: It does not hurt to have those too.. Send them to the fax shown above your post, thanks in advance!
dbuzz: Before I wrote this post I did a little research on the issue and had no luck.
JStephen: Is a good idea but I need to have something from a manufacturer/distributor on record.
Thanks for your prompt responses!
Greetings: Does anyone know where to find the coefficient of static friction of neoprene (plain 50 durometer) on steel and neoprene on concrete?
Thanks in advance..
You can increase the torsional capacity of this WF by connecting stiffeners at the end of each side of the top and bottom flanges. Basically you'll be creating a box member, which is very efficient in torsion.
Actually stiffeners for steel WF lintels supporting eccentric siding loads had been used to increase the warp coefficient (@ the stiffeners location) and therefore to increase a bit the torsional capacity of the WF. ASCE have few journals on the subject..
UcfSE: the trusses slope is 2:12 therefore 5.0 ft and the elevation at beam/truss bearing. = 30'-0”. You can imagine how critical this height is for this design. Thanks for your interest!!
1prsplmps1
ThomasH: yes, that would depend on how precise AnthonyR wants to be. As you know the 0.003 value really is 0.00256 that came from the density of air at roughly 60 deg. F. at standard atmospheric pressure. Then this density (0.00237… slugs/ft^3) is multiplied by (.5)[(5280 ft/mi)/(3600...
jimrcasper: I do not know how precise you wanted to be but SAP2000 is a good software. In addition, you can divide your beam+stiffener in several sections (x section wise) to calculate geometric properties of the whole system, stresses, angle of twist, etc. Any mechanics of material book can...
Greetings; It seems that ASCE7-02 does not cover wind load in canopy trusses (i.e open building). I am working on a steel canopy with cold formed trusses @4'-0" o.c. and spanning 60'-0". If I use a tributary area of 4’x60’=240 sf x (say 20 psf) =4,800# per truss which I believe is tooo...
