Hi All, I all trying to find a reference to the information posted in the link below to understand the calculation of a concrete spring constant, as indicated in the link below.
https://www.eng-tips.com/viewthread.cfm?qid=369976
Unfortunately, the reference in the Eng-tips link is no longer...
Hello, I am looking for advice on placement of control joints in a Slab on Grade.
The design drawings call for placement at 4.5m. The contractor has used isolation joints (as shown in blue) and there are two openings in the slab (sump in centre and jib crane foundation on the right hand side)...
Hello Canadian Engineers, I am designing a covered breezeway (roof and 4' high plywood barrier) adjacent to an existing building, there is no gap between the breezeway and the building. As well they are similar heights, as the breezeway roof will be ~2" lower than the building roof and sloped 2%...
Hi all, I am trying to calculate the shear area for a built-up section for input in STAAD.
I have found a number of resources to determine built-up section shear area, but have not bee able to find any guidance on calculation of the shear area for this specific configuration: W-Shape with a...
Hello All, I am trying to identify a specific type of grating, bearing bars are a inverted U/V shape with square bar stock placed perpendicular to the bearing bars (see attached photo).
The original construction was from the 1960s and is located in Labrador, Canada. This type of grating is...
Hello All,
I am looking at an existing footing. In trying to determine the shear force acting on the footing the calculation based on CSA A23.3 shows the location where i would take the shear force to be outside of the physical dimensions of the footing. ab (distance from pier face to edge of...
Hello All,
Canadian structural engineer here. I am currently exploring options to add section capacity to an existing truss. The work would be required to be done in place at ~30feet from the slab below.
The top and bottom chords are T-Sections
Truss Span: 50 feet
Truss Depth: 5 feet
Top...
Hello,
I am a civil/structural engineer working on a site in Canada. We currently have a consultant designing a new bridge for us to cross an existing train track.
The consultant has provided a preliminary design which includes an ~23m bailey bridge passing over 2 railway tracks. This is a...
I have been tasked with designing a spread footing for a large canopy structure over an existing outdoor rink. The contractor/client does not want to use a wall footing between the isolated spread footings. I suggested using a shear key to my supervisor and he said it was a good idea. After...
