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  1. coaleng

    Seismic Design Category D Connections

    Thank you all for your helpful tips. I will get a copy of the physical book. All I had was the free online version.
  2. coaleng

    Seismic Design Category D Connections

    I have been asked to design the beam to beam connections and beam to column connections for a new project that is located in Seismic Design Category D. I have review ASCE 7-10 and Seismic Provision 341-10. My understanding is that for the beam to beam connections I can basically use single shear...
  3. coaleng

    Professional Liability Insurance

    Thank you all for the input. I will investigate further to see which items are driving this cost.
  4. coaleng

    Professional Liability Insurance

    I have only had three quotes. the local agents received quotes from Loyds London, Victor Schinnerer co., and Hull and co. I design foundations, steel structures such as coal preparation plants and conveying systems, some metal building foundations and forensic evaluations of steel structures...
  5. coaleng

    Professional Liability Insurance

    I have just started my own structural engineering firm and the insurance companies are quoting $15,000 to $25,000 a year for professional liability $1M coverage. And most wouldn't quote me because my revenue projections were below $100,000. if this typical? I am the only employee.
  6. coaleng

    Large pipe penetrations in existing tank wall

    I did perform calculations on the wall and the actual shear values were much less than the wall is capable of handling. The pipe insert is a link seal with plate on each side of the wall. I have decided to epoxy plate to span between the pilasters to strengthen the wall in that area in place of...
  7. coaleng

    Large pipe penetrations in existing tank wall

    The project has a large rectangular tank 47 ft X 19 ft with 11 ft high walls that are 15" thick. It also has pilasters every 7ft that are approx 2'-3" wide. the water slurry level is approx. 10 ft. the tank was built in 1983. We need to install a 20" dia pipe near the bottom of the side wall...

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