For those of you who are doing tower re-analysis, how are you dealing with hooked anchor bolts?
There have been thousands of hooked anchor bolts installed for communication towers over the last 30-40 years. ACI 318-08 Appendix D, equation D-5 limits the pullout strength of hooked anchor bolts...
Anyone using the new standard yet? Have you done any re-analysis of old towers to the new standard? If so, any comments?
I have speced it once on a new tower and had a manufacture "no bid" it as they don't have software to handle it. I am starting a second reanalysis of rev. E and F towers...
The January 2004 issue of Modern Steel Construction had a "Steel Interchange" response by Keith Mueller on design considerations for weathering steel structures. Several of the recommendations, which are based on United States Steel Corp. literature, have led me to question practices...
Does anyone have a handle on the secondary oil containment requirements in the latest 40 CFR 112? I am a little behind the curve. I think that it became a rule in July 2002, with deadlines February 17, 2003. I think the deadline has been postponed 60 days and that there is a proposal to delay...
Is anyone aware of papers or articles addressing the problem of fires originating at the thru-bolt connection of wood crossarms to wood poles? I would also be interested in hearing from others who have experienced this type of problem. Specifics regarding voltage, type of construction...
