We analyze a lot of existing lattice steel structures (electrical transmission industry) with odd bolt patterns in angle connections.
Assuming minimum end, edge, and bolt-bolt distances are met, the basic block strength is At*Fy + 0.6*Av*Fu.
See the attached drawing. In the top and middle...
Maybe I'm way behind the times, but I was reviewing a standard spec and found that the following ASTM Standards have been "withdrawn" without being replaced or superseded:
D2113 Rock Core Drilling / Sampling
D4220 Preserving/transporting soil samples
D5079 Preserving/transporting rock core...
I'm working with a client who lost some of their historical documentation a while back (natural disaster). As a long shot I thought I'd ask the engineers here if they may have information.
My goal is to analyze a pair of long-span double-circuit structures to get an approximate modern extreme...
There are forum threads ad nauseum regarding use of a PE title on business cards and email signatures. This is a slightly different topic.
Question:
If the originator of a calculation or report is a PE in their home state, but not licensed in the state where the work is located, should they...
Both ACI 318-11 and -14 require that the ends of independent circular ties terminate in standard hooks. This is a significant change from the old lap terminations.
I work in the power transmission industry, and standard footing designs are typically circular drilled piers. For large engineered...
