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  1. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 13

    / https://www.prosperlaw.com/what-caused-champlain-tower-collapse https://www.foundationprosfl.com/best-soil-types-for-building-foundations-in-florida/ You see this is the problem in Florida with people like Electrical Engineers ( not you Jeff) doing Structural Engineering. As a Building...
  2. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 13

    https://www.eng-tips.com/viewthread.cfm?qid=317545 I think we are dealing with deflection and shear in the failed beams not cantenary actions. If the BM A detached from the step beam we could be dealing with shear and maybe a moment applied to the drop beam even though the max M would be at the...
  3. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 13

    A main reason for the slab failure and then the building was months of vibrations from the new Condo being built next door. Basically continuous seismic loads microscopically cause loss on rebar bond strength. If someone here can do the calc on the patio detaching from the step beam that may...
  4. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    Can anyone find pics of the main step beams? The one at the building line is 12" x 19" which also is holding up the weight room. The step beam behind the planter has 2 drops in it with BM A's under it somehow attached to the step beam. Also if someone can do calcs on this beam with a cantilever...
  5. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    Interesting theory. Where are these items in the pile?
  6. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    Well why is the place a crime scenes? Politics? Something is going on. The only structural scenario I see now is the beams holding up the planters torn chunks of concrete from the main step beam which held up the building. I have not found any sections showing how the BM A's were tied into the...
  7. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    The police presence points to a criminal investigation. I am wondering is a suicide driver was involved. the whole scenario is too weird.
  8. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    Jeff without these post failure pics this case can't be solved.
  9. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    Do you have pics of the main step beam and columns L,M,N?
  10. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 12

    How could the load of a slab possibly applying a cantilever moment and load to a concrete column holding up about 800kips cause a building to collapse? The south side of the building did not collapse as the slab failed in punch shear and damaged a small area of the column.But there was a beam...
  11. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 11

    I think we have a joint collapse theory that includes the roof and bottom collapse. The pool deck collapse caused the collapse of Beam A 's around column 11.1 as seen in TikTok video. This pulled on the column M10 and L10 and beam 33 and 35 and fractured the floor connections causing a torsion...
  12. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    The pic I have was taken last night around 10:pm ish as the building was collapsing. They are flower pots but that's not what is in my pic. Look at it closely if you dare. I have investigators looking into it. We are skirting the realms of metaphysical engineering. I know Engineers don't like...
  13. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    https://www.eng-tips.com/userinfo.cfm?member=Roga50 Coverup is how many of these places operate.
  14. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    Another apartment complex in Florida has been ordered evacuated as a precaution after city officials became concerned over a recent report about the buildings: North Miami Beach building deemed unsafe, evacuations ordered [highlight #E9B96E]A Jan. 11[/highlight] report on the Crestview Towers...
  15. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    Welcome from a fellow Inspector .Retired and tired. lets touch base.Please review some of my post. Jeff
  16. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    I just want to comment regarding inspections. The only way to attempt to avoid massive corruption is to have the insurance companies do the inspections since they have the liability.They also will be free of local politics. I can't tell you the hundreds of times I had been overruled on crucial...
  17. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 03

    In the photos you posted of the entrance to the garage what is the square object to the upper right? A beam?? It's a sign.
  18. ChiefInspectorJ

    Miami Beach, Champlain Towers South apartment building collapse, Part 02

    Rebar clearance ACI 318 I would double the allowable clearance without the tolerances. That is because the plans you draw are NEVER done exactly or sometimes close to the drawing. Lets call it a factor of safety that is calced in almost every other structural component. And special cover...

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