Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. Kestrel42

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

    Has anyone actually seen the 2020 Morabito Consultant report referenced in the letter the head of the condo board sent out to the residents in April of this year? I’ve seen the original 2018 report posted in this thread, but several news stories keep referencing the newer report. NPR has some...
  2. Kestrel42

    Miami Beach, Champlain Towers South apartment building collapse

    @Eufalconimorph I played with the street view you linked to, and you can definitely see that several of the lower balconies were in poor repair on their undersides:
  3. Kestrel42

    Tesla Autopilot Update

    IR Stuff, I thought it was interesting that the NTSB made such a point of company policies against using PED’s while driving too. In this case, while the deceased driver was using a personal vehicle he was also distracted by playing a game on his Apple-owned PED. Since the crash occurred while...
  4. Kestrel42

    Tesla Autopilot Update

    The NTSB held their hearing yesterday. I haven’t had the time to watch the full 3-hour presentation, but the board had some very harsh words against Tesla, the NHTSB and Apple (for not having a company-wide policy against using personal electronic devices while driving). Link to full meeting...
  5. Kestrel42

    Gas Main Explosion in Massachusetts- Update

    Since the prior thread has been closed, I thought some might be interested to learn what the outcome was for the gas company involved in the disaster. Record 53 million dollar fine and the company, Columbia Gas, is to be sold. For some reason, residents just don’t feel safe leaving Columbia Gas...
  6. Kestrel42

    Sikorsky S-76B crash (Kobe Bryant)

    The pilot was IFR rated and recently retrained, but interviews with other pilots he flew with indicate he did not have experience flying in fog or cloudy conditions. You may be qualified AND current and still simply lack direct experience with those conditions. It doesn’t take very long for...
  7. Kestrel42

    Sikorsky S-76B crash (Kobe Bryant)

    The NTSB released a preliminary report on the crash today. Short but does give some new information. Specifically, it looks like the engines were working at the time of the crash and the blades were rotating at the time of impact. Looking more and more like the pilot may have become disoriented...
  8. Kestrel42

    Miami Pedestrian Bridge, Part XIV

    Vance, consider what might have happened if they had closed the road after the March 15th meeting. They would also have suspended the retensioning of the PT bars in 11, since putting up a crew would have been unsafe. If the PT bars had NOT been retensioned it is possible that the bridge could...
  9. Kestrel42

    Miami Pedestrian Bridge, Part XIV

    JStephen, yes, Figg was the designer for the new Harbor Bridge. Yes, the bridge is under construction, or was until Texas DOT suspended the build. https://www.caller.com/story/news/2018/03/19/engineer-harbor-bridge-replacement-worked-fatal-florida-structure/438859002/...
  10. Kestrel42

    Miami Pedestrian Bridge, Part XIII

    Reading through FIGGs analysis as well, Vance. I find it supremely unconvincing. They state several times that MCM/BP did not accurately inform them that the cracks in 11/12 and the pier diaphragm we’re getting worse, and then they admit in the details that they knew this information but were...
  11. Kestrel42

    Miami Pedestrian Bridge, Part XIII

    Vance, I’ve spent all day trying to find the dimensions of member 12 that FIGG used for their models, and I’m having no luck confirming that what MCM said in their analysis is correct. However, I think we are on the right track about the pylon/member 13 pour happening prior to the backspan. If...
  12. Kestrel42

    Miami Pedestrian Bridge, Part XIII

    Vance, I’m trying to find the calculations you asked for in the reports. The dimensions of member 12 are mentioned in MCM’s analysis of the collapse but I am looking for confirmation of this in FHWA report. Starting at page 76, they go into FIGGs use of computer modeling to analyze forces and...
  13. Kestrel42

    Miami Pedestrian Bridge, Part XIII

    The model matters because the model FIGG used for their calculations, the simple span, overestimated the dimensions of member 12 and ran the calculations as if the backspan was partially in place. FIGG never properly accounted for the forces in the structure when the main span was supported with...
  14. Kestrel42

    Miami Pedestrian Bridge, Part XIII

    I’ve been following this forum since the day of the collapse but since I’m not in structural or construction, so I’ve never thrown out any comments. However, I’ve been an NTSB follower for many years and have watched at least a hundred of these board meetings. I’ve never seen anything like this...

Part and Inventory Search