I am working on a wood truss roof replacement. The fire treatment turned the wood brittle. The truss bottom chord is attached to the supported ceiling. Non bearing walls attach directly to the ceiling. Hence, snow loads deflect the truss and pass into the non bearing walls below. These walls are...
Today, I got asked if I was LEED Accredited to be on a team for a public building. I have worked with this architect on many projects. I have never been asked the question before. The town made it a reqiuirement that the architect, mechanical engineer, and structural engineer be LEED Accredited...
I am looking at a an early 1900's Guastavino vaulted floor and arch ribs. Guastavino wrote in his treatise that arch thrusts were calculated for the crown as H = LS/8r where L was the distributed uniform load, S was the arch span, and r was the rise from the arch spring to the crown. Kidder has...
I have a project to refit 25 tons of bells in a bell tower, which is to reframe a bell carriage. This steel framed tower was built in the 1930’s before seismic loading was considered a requirement in this locality. I am looking to improve the seismic performance of the bell to tower interaction...
