View Full Version : Amazing Airport in Portugal
R6_kid
13th January 2008, 10:30
The airport's runway with a length of 2781 meters , which 1000 meters of the runway is supported by 180 pillars , each pillar 50 meters height ( abt 17 floors ), surprisingly , the runway design are for Boeing 747 - Look at the cars parked below the runway
Magua
13th January 2008, 10:38
I'd be pissed off if I lived in one of those houses behind the runway.
Pretty amazing though.
Colapop
13th January 2008, 10:46
The runway is designed to take a 500 tonne point load (can't remember the KPa's) meaning that it can take a 500 tonne plane crashing into it!! Having recently worked on the Wellington Airport RESA (Runway Extension Safety Area) and seen the amount of steel, concrete and design that went into that - I can only be in awe of this behemoth!!
Imagine trying to get consent for that here! The RMA would just laugh!
The Pastor
13th January 2008, 10:54
how heavy is a 747? 501 tonne?
The Pastor
13th January 2008, 10:57
The 747's maximum takeoff weight ranges from 735,000 pounds (333,400 kg) for the -100 to 970,000 lb (439,985 kg) for the -8.
Getting close to 500 tonne ;)
onearmedbandit
13th January 2008, 11:03
I think there is probably a difference between a 440,000kg Boeing landing and a 440,000kg Boeing crashing.
The Pastor
13th January 2008, 11:05
yeah i was just saying, most things have a factor of safty of at least 1.3
Colapop
13th January 2008, 11:16
how heavy is a 747? 501 tonne?
Yeah about that. But a point load is different to a dispersed load. Say the aircraft weighs 500 tonne, it is not going to land with all of it's weight on one point and stop. The weight is dispersed over the contact area of the wheels. Added to that is the dampening effect caused by pneumatic pressure (of the types) and the planes suspension. So you're not likely to get a 500 tonne point load.
Big Dog
13th January 2008, 11:35
Yeah about that. But a point load is different to a dispersed load. Say the aircraft weighs 500 tonne, it is not going to land with all of it's weight on one point and stop. The weight is dispersed over the contact area of the wheels. Added to that is the dampening effect caused by pneumatic pressure (of the types) and the planes suspension. So you're not likely to get a 500 tonne point load.
Hmmm, but the scary thing looking at it is there does not appear to be any lateral bracing surely these 500 tonne behemoths do not load vertically either.
Surely this means that each impact would over time erode the pillars surrounding the touchdown area. Ultimately leading to a catastrophic failure of at least one pillar.
At which time we have 500 tonne moving across a weakened structure.
Not keen to land there myself.
MVnut
13th January 2008, 11:54
For all you sceptics, you can also get to Portugal by some VERY nice roads
Mekk
14th January 2008, 02:10
Incredible structure, I love it.
skidMark
14th January 2008, 05:06
yeah i was just saying, most things have a factor of safty of at least 1.3
whats the deal with your sexuality then?
point alcohol level?
get to 1.4 then your indy's for the night?
The Pastor
14th January 2008, 06:26
whats the deal with your sexuality then?
point alcohol level?
get to 1.4 then your indy's for the night?
shut up mark.
skidMark
14th January 2008, 06:29
shut up mark.
Rjpn3L3bSJQ
NZsarge
14th January 2008, 07:45
Incredible structure, I love it.
+1, I hope the terminal does it justice.
R6_kid
14th January 2008, 08:02
+1, I hope the terminal does it justice.
it's probably a shanty hut, after all they would've spent nearly all the budget building the damn runway!
Dave-
14th January 2008, 12:14
Hmmm, but the scary thing looking at it is there does not appear to be any lateral bracing surely these 500 tonne behemoths do not load vertically either.
Surely this means that each impact would over time erode the pillars surrounding the touchdown area. Ultimately leading to a catastrophic failure of at least one pillar.
At which time we have 500 tonne moving across a weakened structure.
Not keen to land there myself.
COST OF: building a 180 pillar 50m high supported runway + maintenance < flattening that hill + maintenance from the oceans erosion.
I'm pretty sure they have it under control dude, it's not like they're going to build a 50m high runway then forget all about the lateral movement....
skidMark
14th January 2008, 12:19
COST OF: building a 180 pillar 50m high supported runway + maintenance < flattening that hill + maintenance from the oceans erosion.
I'm pretty sure they have it under control dude, it's not like they're going to build a 50m high runway then forget all about the lateral movement....
if i have a twin somewhere in the world then they would have forgotton.
nodrog
14th January 2008, 12:39
if i have a twin somewhere in the world ........
Dude dont even joke about that sort of shit!!!! :spanking:
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