And your disagreement is warranted.
Mistake is mine RE: the LRFD form of the LC. 0.9D+1.0W was the intended reference. Whiffed badly on that in my haste. Thanks for the correction, Pham.
Simple. Don’t do structural work in the absence of geotechnical recommendations derived from a site-specific subsurface exploration.
In the end, structural will get pulled into the lawsuit regardless. But if there is a geotechnical report, and depending on the nature of the building...
Retain a licensed engineer to help navigate the issue, or have the homeowner retain one.
There is no way to know the extent or cause from what little you’ve shared, so any conversation about underpinning is premature and potentially irrelevant.
Dead load is always downward (direction of gravity). Wind load can be upward or downward (suction/pressure). Wind forces away from the surface are (-). Wind forces towards the surface are (+). So the “W” in 0.6D+W can be negative or positive. Pressure and suction values are typically per...
If the question is how to determine the force in the diagonal, as has already been stated it is a straightforward vector math problem. If you have a genuine interest in how the force is derived (as opposed to just wanting someone to give you the answer), there are plenty of online resources you...
I’m not a fan of trying to run that plate back into the plane of brick. Even if the plate didn’t warp, that’s a tough detail to build.
I don’t know how far apart your HSS tube brackets are. If the distance between them is not unreasonable, could you span a bent plate or an HSS section across...
BridgeSmith-
Correct. I believe the elongations listed in the ASTM spec for A706 and for A615 are “total elongations”, which coincide with fracture of the bar. As mentioned above, this isn’t a very valuable attribute from an engineering design standpoint, at least not compared to uniform...
Thanks HTURKAK. I overlooked the uniform elongation requirement for A706 bar established in ACI318.
The fact remains that A615 bars, as well as other non-A706 reinforcements, have no definition for uniform elongation, yet are broadly accepted and specified in numerous structural applications...
Hi all.
in Eurocode, reinforcement for concrete is classified in three groups (A, B, and C), each having a characteristic minimum tensile to yield ratio and an accompanying minimum tensile strain (measured at ultimate, i.e., the highest point on the stress-strain curve). The various available...
