I fabricated a fixture to perform crane rail surveys but it doesn't seem to be as accurate as I had hoped. My process is to place the aluminum bar on the rail and rotate it until the dowel pins make contact with each side of the rail. Then use the bubble level on the prism to level it out...
Does anyone have a good process or recommended technology for annotating photos taken during the course of a site visit? Or somehow linking them to a notes so you don't have to try to remember where each photo was taken when you get back to the office.
I have been asked to provide a peer review of the attached structure which is a carousel to store vehicles. My feeling is that even though the cars are free to swing in one direction, the mass of those vehicles must still be included in the seismic mass. I imagine that with some dynamic...
Does anyone have a clue how this detail might be justified? I found it on a structural drawing approved by the AHJ in California. The stemwalls are typically 8" thick. I tried to justify these several years ago but got shut down by the AHJ. Now I just specify through bolts. Assuming that...
Where would I go to find someone who can develop a complete Autocad template (linestyles, plotstyles, layer standards, titleblocks, dimension styles...) for structural engineering?
Is anyone aware of the California Building Code requirements for the internal design of package cooling towers? The AHJ is asking us to prove that the equipment meets the CBC but the mfr does not supply calculations. It is a 50000 lb package unit. We have already provided adequate anchorage...
I posted this without the detail in Foundation Engineering but I didn't get much response. I am designing a replacement foundation for an existing residential structure. Originally spread footing. The geotech wants to replace them with P&GB. With the existing structure in the way, what is...
Does anyone have a detail showing what the typical solution is for a pier offset from the grade beam? I am designing a P&GB replacement for an existing spread footing. Since the structure (residential) is already there, I can't imagine that the drillers will be able to place the pier too close...
I trying to get to the bottom of why I am getting disparate results for the same design in Hilti and Simpson. Concrete edge breakout in shear is the controlling failure mode. Although the capacities in both programs are identical for all shear failure modes, Simpson is combining the breakout...
Where would I find a book on applying the stiffness method to a beam on elastic foundation? I would like to develop a spreadsheet for a single foundation beam and little by little expand.
Is anyone familiar with a reference for the design of concrete anchorage for a swept anchor rod such as Simpson's SB1x30? The plan checker has thrown us a curve asking to justify the anchor reinforcement for a bent anchor rod.
