I'm modeling a small elevated platform for a client and I came across something I wanted to get some clarity. Lets say you have a simple C6x8.2 Channel braced at each end and 12ft long. Why is it that STAAD flags the channel for slenderness and RISA under the same conditions doesn't? Is my...
We have a very simple trench 3' wide x 2' deep for 93% concentrated sulfuric acid containment that we're going to be covering with grating.
Anyone have any experience with what type of material would be best suited? The best I can find is 316 stainless is "fair" with respect to corrosion but...
I have what should be a quick question. We have a client that has has an existing 200' flare stack that is going to be going through some restoration to replace in kind some existing rusted out gussets/guy wires. Our only scope of the project is to check to verify that the existing stack will be...
I'm looking for some justification in our modeling of wind loads with respect to a few existing vertical vessels.
We have an existing rectangular industrial building with 3 floors. The first floor at grade is completely open...the second and third floors are completely enclosed with girts and...
I'm having a brain fart...using SPMats for a mat foundation and all of my shear+moment forces need to be resolved into moment forces along each axis.
SPMats loads the foundation from the center of the foundation so shear forces is simply (force x distance of pedestal). When it comes to the...
I have a quick question. In general wind loads on cable trays we use Cf = 2.0 for all wind loadings going laterally against.
When we get a transition portion say from a pipe bridge to pipe rack at a lower elevation when the cable tray is vertical and we want to model the wind loads normal to...
I received a call from my first employer out of college (Contractor Company) who mainly does small maintenance/construction inside of 2-3 local refineries whom I am very close with and have worked many projects with during employment and after.
They have these small platforms (to get to tank...
I'm a Civil Engineer working on this small project to replace a gravity fed single walled diesel storage tank with a new double walled tank where we'll be replacing the entire foundation etc...
I've been working my way through EPA, SPCC, API, NFPA and seem to be going back and forth between all...
I'm working on a project where we are designing new rollover curbs on top of existing paving to as part of containment etc...
There's a 5' long portion of an existing reinforced concrete trench running perpendicular to the curbs that we'll have to cross over and will need to backfill with a...
Pavement will be used as an entrance for 18 wheeler trucks entering/exiting a warehouse. For the purposes of this question lets assume a typical jointed concrete pavement 8-10" thick with one layer of reinforcement both ways (slab to be on grade or at ground level). What's the general consensus...
