I'm doing a torsion weld calc on a pipe and cant figure out why the polar moment of Inertia formula (Jw) for a weld treated as a line is different than the standard polar moment of inertia formula for a circle.
In my text book, the polar moment of Inertia (J) of a circle (with axis on CG)is...
How does one calculate the corner zone width "a" for an irregular building? ASCE 7-05 states that the corner zone shall be 10% of the least building width but not less than 3ft. The ASCE approach is for a standard/rectangular shaped building. Based on the geometry of the attached building...
Anyone know the coefficient of friction between glass and vulcanized fibre?
or glass on a similar material to fibre.
Anyone have a good reference for coefficients of friction?
Thank you.
Anyone know how to interpret table C1 in appendix C of AS1288 "COEFFICIENTS FOR SLENDERNESS FACTOR"
More specifically how to choose the right moment parameter (beta)on the attached table.
Need to choose the appropriate g1 factor but don't know if the moment parameter (beta) should be...
I'm in the process of designing a wedge anchor connection per appendix D of ACI 318-08. I'm trying to figure out when to assume cracked vs uncracked concrete.
When anchoring to a compression zone, one would assumed uncracked concrete and cracked for tension zone.
What happens when you anchor...
I recently got a comment back from a reviewing engineer with the following comment regarding one of my analysis.
In the analysis i was calculating the prying (tensile) force on a bolt. I was asked to multiply my moment arm
by a factor of 0.85 to account for the difference in strain rates...
