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Purdueenginerd

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Everything posted by Purdueenginerd

  1. Purdueenginerd
    Ehh.. I disagree respectfully for reinforced concrete structures of that era. Generally I have found them to be under-designed. Reinforced concrete steel structures from that era run into two problems. The steel they use was around 18 KSI-33KSI (kilopounds per sqaure inch) in yield capacity, or less and there was wide variety of bar design, which could allow for shear slippage of embedded reinforcement. Here's an image of some historic reinforcement used that I have at my office. http://i.imgur.com/zMGq0lA.jpg All of the bars shown above, I've pulled off of projects in Houston, Chicago, or New Orleans. They added more, and not proportionally, because the steel was significantly weaker in tension in that era. Today, standard rebar has a yield capacity of 60 KSI. The concrete mix design is another factor which isnt being addressed. Modern reinforced concrete structures, for just about every element are significantly stronger, and better built. Now, that being said... based on the most recent pictures, this looks like a composite beam. An I - beam (more correct term is W-Section) encased in reinforced concrete. In this instance, the I-beam is the primary structural component and the reinforced concrete is likely acting as a form of fireproofing, or strengthening from later structural modifications.--- I can't really tell without looking at the drawings. The guy is probably using a plasma torch to cut through the steel beam and/or rebar.... which is way faster than using a grinder or bandsaw. /edit: Correction on KSI values.
  2. Purdueenginerd
    WOw... a little depressing
  3. Purdueenginerd
    They likely have the mast climbers tied in to the remaining structural components.
  4. Purdueenginerd
    No no no, you got it wrong... theyre planning on a press release for a supertall 110 story apartment building, followed by weekly press releases of height reductions.
  5. Purdueenginerd
    tried to embed the tweet... didnt work. Either way... here's an exchanged I had with their twitter account @CentralSquareTX Are you guys still working on the project? I havent seen any progress for a few weeks User Actions Following CentralSquareMidtown‏@CentralSquareTX @RJA_BoilerMaker Yes, we have been a bit swamped,but should be posting pics again. Should see some exciting changes in the upcoming weeks!
  6. Purdueenginerd
    My only guess as to why its taken so long is that the building is occupied. Still, 4 years for a reskin? sheesh. maybe they just had low manpower for the job? Don't know.... it is slow..
  7. Purdueenginerd
    http://www.historypin.com/channels/view/46823#!map/index/#!/geo:29.758444,-95.363743/zoom:20/dialog:230045/tab:streetview/ Tried to line up this picture of the WW1 homecoming parade with the current renovations...
  8. Purdueenginerd
    are you confusing it with the Alexin construction? I didnt see any equipment on the superblock this morning
  9. Purdueenginerd
    If its structural damage... give my company a call. We'll fix it
  10. Purdueenginerd
    Empire state building is a steel frame structure. This one is going to be all reinforced concrete(I'm guessing), which is more labor intensive. ESB construction also had 5 workplace fatalities, which today would be totally unacceptable. I tried to find a similar sized steel frame high rise built in the "modern era". Bank of America building in downtown Atlanta, over 1000 feet. Built in 14 months. The other thing to take into account is Fair Labor Standards Act, which passed in 1938. It established the 40 hour work week (and 8 hour day). If they built the empire state today, I would guess that the total man-hours(or person-hours) would be less, but the elapsed time to completion would be more.
  11. Purdueenginerd
    saw the first segments of the crane going up this morning.
  12. Purdueenginerd
    woo... that'd be a big jump.
  13. Purdueenginerd
    lol. Anyway, off topic again. (sorry mods). I plan on adding construction photos of various project (including this one) to Historypin. In my opinion, 5,10, 15 years down the road, if the site is still functioning, I think people will appreciate those photos. I'll of course, ask permission and give credit on the site.
  14. Purdueenginerd
    I guess everyone's I'll be sure to give credit. No reddit. Got it.
  15. Purdueenginerd
    Slightly off topic, but photos like above are great for adding to http://www.historypin.com/ do the owners of the photos mind if I add them? Houston, TX doesnt have a lot http://www.historypin.com/map/#!/geo:29.760193,-95.36939/zoom:10/
  16. Purdueenginerd
    Sheraton also had larger sqaure footage per floor that this structure. (I think) I'm not sure this one is a reinforced concrete building. I would have assumed steel frame for both... but I could be mistaken.
  17. Purdueenginerd
    Decided to look at the map. Along the rail. We have Post Rail developments of: Camden Travis St (Complete) Camden Superblock (Scheduled to start later this year) Alexan (Under Construction, located @ Hadley and Main) Resturaunt Reef Proof Bar HCC expansion Apartment building at Alabama and Main (under Construction) The apartments at Oakdale/Fannin (Complete) A *ton* of town homes within 3-4 blocks Ventana Apartments (complete) oh, And the CVS. Note: Confined to only ''''skid''' row
  18. Purdueenginerd
    I can't view them. But I think my office computer blocks Flikr.
  19. Purdueenginerd
    Women laughing at food stock photo. lol. https://www.pinterest.com/whosinski/women-laughing-at-food/
  20. Purdueenginerd
    Its alright. I noticed the glass balcony on the backside. Roofside pool perhaps?
  21. Purdueenginerd
    Today I learned, I apparently live in Skid Row.
  22. Purdueenginerd
    That surprises me. Though I havent been there in a long time. I still think that midtown needs a better mix of restaurants to help support the bar scene
  23. Purdueenginerd
    Very nice concrete placement. Nice pictures everyone.
  24. Purdueenginerd
    I know on my side of the construction industry(industrial), we're having some labor shortages. That may explain some of the delays... I dont know about the mid-rise/high-rise contractors...
  25. Purdueenginerd
    Chicago is one of my favorite cities. Great city, Great food. I went there for probably the 10th time in February. Girlfriend and I walked about 10 miles a day (yeah it was cold, but nothing a scarf and a good coat can't handle). I envy that kind of walk-ability and mass transit and wish HOuston had it as well. That being said, Houston is home for me. Different cities, different feels/likes, different construction/transportation eras, and different climates. I recognize the differences between the cities. Can I say I like Houston and Chicago? haha
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