the crane the crane

[BillSU]

This is helpful. To my eye. It looks like the hard part of the new roof, around the perimeter, is going to hang from 4 major cables that form a diamond.

The interior portion of the roof, the part made of translucent PTFE, looks like it will be held in place by a series of steel bars shaped into arcs.

I don’t think this design involves a cable ring at all. It is a similar concept but quite different. Maybe I am wrong. That is how it looks to me.

Tomcat - when you refer to a series of steel bars are they the arcs you talking about - the half hoops beneath the cable that provide height projecting up underneath the fabric that lets more light in and if so are they there for rigidity and support/strength in your opinion?

 

[sutomcat]

Tomcat - when you refer to a series of steel bars are they the arcs you talking about - the half hoops beneath the cable that provide height projecting up underneath the fabric that lets more light in and if so are they there for rigidity and support/strength in your opinion?

Yes. The earlier drawings of the new roof showed many what looked like small mini domes made of PTFE material. It wasn’t clear how they were getting that shape and I was a little confused about it.

On this drawing, it looks like the PTFE material is just going to be stretched over the steel arcs (I assume they are steel) to achieve the mini dome shapes.

I personally liked the smooth lines of the old roof and am not a big fan of the arcs. I assume they were done to introduce more slope, more runoff, and give snow less of an opportunity to accumulate on the roof during heavy storms. I know snow accumulation was a regular problem with the old roof. Since the new roof is not air supported, this won’t be as crucial an issue but I suspect snow replaces a concern for a roof of this size located in his climate. The blurb accompanying the drawing seems to indicate this.

Hoping NJCuse97 or someone inside the project can provide more insight here.

 

[orlandoorange]

Yes. The earlier drawings of the new roof showed many what looked like small mini domes made of PTFE material. It wasn’t clear how they were getting that shape and I was a little confused about it.

On this drawing, it looks like the PTFE material is just going to be stretched over the steel arcs (I assume they are steel) to achieve the mini dome shapes.

I personally liked the smooth lines of the old roof and am not a big fan of the arcs. I assume they were done to introduce more slope, more runoff, and give snow less of an opportunity to accumulate on the roof during heavy storms. I know snow accumulation was a regular problem with the old roof. Since the new roof is not air supported, this won’t be as crucial an issue but I suspect snow replaces a concern for a roof of this size located in his climate. The blurb accompanying the drawing seems to indicate this.

Hoping NJCuse97 or someone inside the project can provide more insight here.

It will be interesting to see how accurate that image is. The translucent portion seems more transparent than I thought it would be. I can make out the stands and field. I hope that is accurate.

 

[NJCuse97]

Yes. The earlier drawings of the new roof showed many what looked like small mini domes made of PTFE material. It wasn’t clear how they were getting that shape and I was a little confused about it.

On this drawing, it looks like the PTFE material is just going to be stretched over the steel arcs (I assume they are steel) to achieve the mini dome shapes.

I personally liked the smooth lines of the old roof and am not a big fan of the arcs. I assume they were done to introduce more slope, more runoff, and give snow less of an opportunity to accumulate on the roof during heavy storms. I know snow accumulation was a regular problem with the old roof. Since the new roof is not air supported, this won’t be as crucial an issue but I suspect snow replaces a concern for a roof of this size located in his climate. The blurb accompanying the drawing seems to indicate this.

Hoping NJCuse97 or someone inside the project can provide more insight here.

I had a conversation with an engineer on the team some time ago, and if I remember right, the metal arcs are to provide some needed rigidity. The pull on the panels was putting too much stress on the seams and this is an engineering move to distribute the forces better and allow the domes to work together to put less stress on the seams. I may not be remembering that right, but that is what I remember.

 

[sutomcat]

I had a conversation with an engineer on the team some time ago, and if I remember right, the metal arcs are to provide some needed rigidity. The pull on the panels was putting too much stress on the seams and this is an engineering move to distribute the forces better and allow the domes to work together to put less stress on the seams. I may not be remembering that right, but that is what I remember.

Thanks njcuse. I remember you mentioned there was concern about the seams where the two parts of the roof meet.

This is a much better drawing of what the new roof will look like. Do you happen to know what the outer perimeter of the roof, the hard part, will be made of? I am assuming it will be composed mostly of steel, with another substance covering the exterior (probably the interior too).

I am assuming that no light will get through the hard part of the roof, which will reduce the amount of ambient light in the dome, but the PTFE portion will be a little more translucent than the middle part of the old roof, which did not have an inner liner. The inner liner had to greatly reduce the amount of light that could get through that part of the old roof, so the amount of lost light with the hard roof shouldn't be huge.

The interior part of the new roof is markedly bigger than the center part of the old roof that did not have a liner. Maybe twice as big if this drawing is accurate. So that, and the more transparent surface, should make the dome noticeably brighter. I think.

Still curious what the new roof will look like from the inside. That one drawing was so badly done. I hope a better one will be released soon.

 

[gocusecaz]

Spiral heading up.

 

[sutomcat]

Spiral heading up.

Interesting. I haven't see anyone but Walt or Skylar put a spiral up before. This white crane has surprising skills.

 

[OttoMets]

JMA Dome (formerly Carrier Dome) at Syracuse University | Geiger Engineers

The first and still the only covered stadium in New York State - is a 50,000-seat multipurpose domed stadium. Since its opening in 1980 it has served not only the university’s athletics department but also the campus and the greater Syracuse community through hosting a myriad of events. The...

www.geigerengineers.com

Geiger’s roof design is a cable truss clad partially with tension membrane and rigid panels, covering the stadium’s 23,250 m² (250,000 ft²) area. The design features an external steel crown truss supported on the existing concrete ring-beam of the original roof and is designed to support more than 6,350,00 kg (7,000 tons) of snow while still providing natural daylighting inside the stadium.

Interesting, thanks for posting that. Also interesting that I believe the original Dome roof was 6.5 acres and 250,000 square feet is only 5.74 acres. Maybe this roof will be flatter?

 

[hoopsupstate]

Interesting. I haven't see anyone but Walt or Skylar put a spiral up before. This white crane has surprising skills.

What’s nice about the new crane doing the spirals, it allows Walt to prepare for the next girder.

 

[Geode]

Looks like Whitey may have had a case of the wobbles.

 

[Moontan]

Oh my... somebody's messing with the camera at Link Hall.
Keeps zooming in and out. Half of the time Skylar is out of the picture.
I can understand wanting to avoid the AC unit, but we need all of the Dome.

Update: it looks like they've settled down. We can still see all of the Dome, no AC units, and just the tip of Skylar. Not perfect, but a lot better than some of the shots that they were testing.

 

[upperdeck]

the baby yellow one did one spiral a couple weeks ago

 

[upperdeck]

they got off to an early start. could we actually see the first 3 girder day?

 

[Moontan]

Oh my... somebody's messing with the camera at Link Hall.
Keeps zooming in and out. Half of the time Skylar is out of the picture.
I can understand wanting to avoid the AC unit, but we need all of the Dome.

Update: it looks like they've settled down. We can still see all of the Dome, no AC units, and just the tip of Skylar. Not perfect, but a lot better than some of the shots that they were testing.

I spoke too soon. They're still messing with it. There are 3 apparent choices:

1. the original shot
2. the shot I just referred to
3. an in-between shot... still showing all of Skylar but less of the Link roof, and a bit more of the Sky
   (apparently just trading shots of AC units for sky... could be related to the Dome naming rights )

They're currently set with #3, which is fine.

 

[Moontan]

Although the Lawrinson shot is still too zoomed in for our liking, it appears that the girder that was laying in front of Gate B is still there. I wonder if it's the next to go up on top of the newly installed spiral. Something tells me that this is a task for Walt.

 

[sutomcat]

Interesting, thanks for posting that. Also interesting that I believe the original Dome roof was 6.5 acres and 250,000 square feet is only 5.74 acres. Maybe this roof will be flatter?

The new roof is supposed to be, on average, 5 to 10 feet higher than the old one. But it is definitely going to be flatter. The hard perimeter portion of the new roof appears to be almost completely flat. And even the interior part made of PTFE looks to have much smaller curves that the old roof had.

Still surprising how much square footage is lost though.

I remain curious what color or colors the new roof will be. This drawing apparently did not take colors into account...the crown truss is not even close to the brilliant white it turned out to be in real life. Pretty sure they can make the PTFE any color they want. Hoping it is not that dingy beige color.

 

[sutomcat]

Although the Lawrinson shot is still too zoomed in for our liking, it appears that the girder that was laying in front of Gate B is still there. I wonder if it's the next to go up on top of the newly installed spiral. Something tells me that this is a task for Walt.

I agree only the big ones can handle the girders. And I think it is likely you are right that the girder that has been sitting, waiting patiently in front of stadium control, is likely the next one to go up. Sure hope so.

If that is the case, Walt is going to need to get it lifted up so the crew can attach the platform to the bottom. Not to be pessimistic, but I haven't seen the crew attach the railing to the top of that girder yet. That is usually the first thing they do to start prepping a girder to be installed.

So maybe another girder is in play. Somewhere.

 

[gocusecaz]

Although the Lawrinson shot is still too zoomed in for our liking, it appears that the girder that was laying in front of Gate B is still there. I wonder if it's the next to go up on top of the newly installed spiral. Something tells me that this is a task for Walt.

I think that girder is next in line or will be the second one in this corner.

 

[Sudano]

The new roof is supposed to be, on average, 5 to 10 feet higher than the old one. But it is definitely going to be flatter. The hard perimeter portion of the new roof appears to be almost completely flat. And even the interior part made of PTFE looks to have much smaller curves that the old roof had.

Still surprising how much square footage is lost though.

I remain curious what color or colors the new roof will be. This drawing apparently did not take colors into account...the crown truss is not even close to the brilliant white it turned out to be in real life. Pretty sure they can make the PTFE any color they want. Hoping it is not that dingy beige color.

Real question here. If the roof is only 5-10 feet taller how will the wow factor huge jumbotron scoreboard hang down from it. Some punts almost hit speakers now?

 

[Qbobby]

Looks like the new west side spiral is up and set!

Come on Walt, girder me!

 

[sutomcat]

Real question here. If the roof is only 5-10 feet taller how will the wow factor huge jumbotron scoreboard hang down from it. Some punts almost hit speakers now?

Well, the wording I read was the new roof will be 5 to 10 feet higher on average.

It will surely start off at the same or nearly the same height. The old roof ballooned out due to air pressure almost immediately, where with this roof, I think it will be a more gradual incline at the perimeter and not nearly as level towards the top. I think the old roof was essentially flat maybe 50 or 60 feet from the center out.

So there will be minimal height difference along the perimeter and much more significant difference towards the center of the roof. Hoping the center of the roof, where the scoreboard will be attached, ends up around or 35 or 40 feet higher.

Pretty sure the center hung scoreboard is going to be a lot longer and wider than it is high. They are probably going to use the 16:9 ratio used for HDTV screens. I think that is standard for stadiums. Might even use a wider ratio for it. Yankee Stadium and the Jerryworld certainly do.

I doubt the new center hung will be more than 45 feet tall. I expect it will intrude a little more than the speakers did but doubt it will come into play very often.

 

[Qbobby]

And east side has a spiral on the way up!

 

[upperdeck]

Walt does have the line extended down to something so maybe it does have a girder to play with.

and now skylar is throwining down the spiral gauntlet as well

 

[Qbobby]

 

[hoopsupstate]

I agree only the big ones can handle the girders. And I think it is likely you are right that the girder that has been sitting, waiting patiently in front of stadium control, is likely the next one to go up. Sure hope so.

If that is the case, Walt is going to need to get it lifted up so the crew can attach the platform to the bottom. Not to be pessimistic, but I haven't seen the crew attach the railing to the top of that girder yet. That is usually the first thing they do to start prepping a girder to be installed.

So maybe another girder is in play. Somewhere.

I wonder if they will still need to attach the platforms. It looks like they can reach with the baskets on the zoom lifts.