Metalmasterscm
Structural
- Mar 23, 2020
- 8
I went to inspect a job today involving a pair of access stairs for a small 2 story parking garage at an apartment complex. I met with the facilities manager and toured the project. Immediately I spotted numerous cracks in the concrete surrounding the bases of a number of tube columns and was then shown a few bases that were only covered with stones under a landing. They all showed signs of severe corrosion, some to the point of showing grain layer expansion within the rust... We then went to a second stairwell where there were a number of columns that were not only corroded but were swollen from water ingress. Upon further inspection there were a few columns that were split from freezing including one that was split some 8 feet long along the weld seam from the tube mill. It appeared to be a lack of fusion between the two sides of the welded joint as the shear line was perfectly straight with no tearing of material from one side to the other. There were a number of columns showing swelling upwards of a 1/4"- 3/8” outwards on a 6x6x1/4” HSS. Further conversation with the Facilities. Mgr I was able to find out they had an engineering inspection and forwarded me the report and scope of repair. The EOR is calling for a cut and replace of approx 1-2 feet of the columns at the bottom along with the base plates, cap the tubes but does not address the column swelling, the split columns and many other issues including the interior of the tubes as these were only painted so more than likely they were raw steel on the interior. He (the EOR) basically said it would be "OK", now I'm not a P.E. I was working towards it but fell in to fabrication and 'erection', but I am much more technical that a lot of the bolt monkeys out there. I under stand shear diagrams, radius of gyration and moments of inertia.
Should I have faith in this engineer? There were a number of things left out and seems like it's a more of a 'done for a friend' type deal and trying to be cheap than an actual professional report and plan. Any opinions?
Thanks
Should I have faith in this engineer? There were a number of things left out and seems like it's a more of a 'done for a friend' type deal and trying to be cheap than an actual professional report and plan. Any opinions?
Thanks