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I have several questions and would like to hear from experts here. Given: ASCE 74 states, in Appendix J Section J.4, the Broken Wire Load (BWL) is equal to the everyday bare wire tension (EDT) of the ground wire and about 70% EDT of a conductor. It also says in the next paragraph, the single...

Please take a look at the file that is attached. I have a K-Frame where the cross beam is subject to both axial compression and bendings in stong axis as well as weak axis. Do the sag braces act as braces in the plane of bending? Using AISC 13th Ed. App. 6, how do you check if the sag braces...

Well, I have found one thing: As per ASCE48, the tensile stress permitted, Ft=0.83Fu with net area of bolt. So, the proof load tension capacity of 2" dia. F1554 Gr.105 anchor rod would be (0.83)*(125ksi)*(2.50 sq.in.)=259 kips. This still is beyond the ultimate capacity of 2" bolt based on...

If proof load is "a tensile load that the fastener must support without evidence of permanent deformation," and ultimate load is a tensile load when the fastener breaks, the ultimate load must be greater than the proof load. Am I correct? Why is the tensile stress permitted, Ft, as per...

Could anyone enlighten me on the difference between proof load and ultimate load? I have a contractor claiming that the allowable bolt tension capacity as per ASCE48-05 is 0.83Fu*Ab. I've found this specification, and here is the Section 9.3.1: The tensile, proof-load, and yield stresses...

I actually do not agree with the reasoning behind using Cb=1.0 and Lb=cant. length for LTB of cantilever in the reference WillisV provided. Dr. Zoruba says Cb=2.0 approx. for cant. and since K=2.0, the two factors would cancel out. That doesn't make sense.. AISC 13th Ed. mentions that "for...