Vancouver House (1400 Howe St) | 151.5m | 52Fl | Completed - Page 40

Regina14 · #**781** Posted **Feb 16, 2016, 9:16 PM**

There will be a 2nd luffer erected in the next 1-2 months using the first one. Both will follow the tower up. The first one will be external and top climbed. The 2nd crane will be internal and bottom climbed.

LeftCoaster · #**782** Posted **Feb 16, 2016, 10:40 PM**

Very interesting. Thanks for the inside scoop!

osirisboy · #**783** Posted **Feb 16, 2016, 11:18 PM**

Quote:

Originally Posted by Regina14

There will be a 2nd luffer erected in the next 1-2 months using the first one. Both will follow the tower up. The first one will be external and top climbed. The 2nd crane will be internal and bottom climbed.

I knew it! Haha. Thanks for the info!

Vanelevatorman · #**784** Posted **Feb 18, 2016, 11:34 PM**

That is one big hole.

ronr · #**785** Posted **Feb 20, 2016, 5:59 AM**

once building clears bridge, will be able to view progress on Granville bridge webcam www.granvillebridge.com

mcminsen · #**786** Posted **Feb 20, 2016, 6:14 AM**

Quote:

Originally Posted by ronr

once building clears bridge, will be able to view progress on Granville bridge webcam www.granvillebridge.com

That's great. Thank you!

mcminsen · #**787** Posted **Feb 23, 2016, 8:47 AM**

Feb.22 '16, my pics

jollyburger · #**788** Posted **Feb 23, 2016, 9:01 AM**

Anyone know why they're digging out those rectangles in the north end?

truenorth44 · #**789** Posted **Feb 23, 2016, 5:22 PM**

Great photos, mcminsen. Very interesting rebar scaffolding in the elevator foundation - I haven't seen that kind of thing before.

osirisboy · #**790** Posted **Feb 23, 2016, 5:42 PM**

Scaffolding in the rebar? Odd.

SFUVancouver · #**791** Posted **Feb 23, 2016, 8:07 PM**

I could imagine that the load of the cantilever requires a unusually large anchoring mass at the base of the tower that is tied into the foundation to a greater degree than we are used to seeing. The scaffolding in the rebar is likely to be used to support rebar on top, effectively creating a void that would fill with a huge amount of mass concrete. The big continuous foundation pour will be something to see!

[I'm not a structural engineer, so take what I write with a huge grain of salt.]

Otis_Van · #**792** Posted **Feb 24, 2016, 5:36 AM**

I saw a similar setup (rebar scaffolding) for a different project on Ingels' Instagram the other day. His caption is "concrete underpinnings":

https://www.instagram.com/p/BCEIfqOrZYc/?taken-by=bjarkeingels

officedweller · #**793** Posted **Feb 24, 2016, 10:29 PM**

Here's what a structural engineer friend of mine suggested.
He seems to agree with SFUVancouver's suggestion of a big mass in the middle (without much rebar) if the lateral load strength is in the periphery.

Quote:

… hard to say but with building eccentricity it looks like the lateral resistive elements may be closer to the periphery of the building footprint to maximize efficiency… and the concentrated rebar regions in the foundation act like grade beams running north south along the west side of the site and east west along the south side of the site… ie. speculating that no traditional core footing at the elevator core for resisting lateral loads – this core may possibly be gravity only or contribute minimally to lateral resistance… can’t really tell until vertical reinforcing is placed around the core – this is still absent on the photos… other vertical reinforcing dowels are also not in yet… if that’s the case then the scaffolding areas will most likely be mass poured with minimal rebar (relatively) – the scaffolding would then be in place of the typical rebar chairs that support top layer reinforcing…

jollyburger · #**794** Posted **Feb 25, 2016, 1:25 AM**

Photo from the same day as mcminsen:

Credit: jollyburger

Regina14 · #**795** Posted **Feb 27, 2016, 2:26 AM**

Quote:

Originally Posted by osirisboy

Scaffolding in the rebar? Odd.

The scaffolding is there to hold the top layer of rebar up. They're going to leave it in there, pour it and eat the cost of the scaffolding.

osirisboy · #**796** Posted **Feb 27, 2016, 2:34 AM**

Quote:

Originally Posted by jollyburger

Photo from the same day as mcminsen:

Credit: jollyburger

There's an object in the top left corner. Base for crane? (I'm just guessing since it's the same size as a crane base. But who knows with this lol)

jollyburger · #**797** Posted **Feb 27, 2016, 4:40 AM**

Quote:

Originally Posted by osirisboy

There's an object in the top left corner. Base for crane? (I'm just guessing since it's the same size as a crane base. But who knows with this lol)

It was a concrete cylinder that looks like it goes down into the rebar. There's also a hose so maybe it's removing excess water?

Otis_Van · #**798** Posted **Feb 27, 2016, 5:09 PM**

Quote:

Originally Posted by osirisboy

There's an object in the top left corner. Base for crane? (I'm just guessing since it's the same size as a crane base. But who knows with this lol)

Yep, it's the second crane...

(My photo; Feb 27, 2016)

osirisboy · #**799** Posted **Feb 27, 2016, 8:28 PM**

Quote:

Originally Posted by Otis_Van

Yep, it's the second crane...

(My photo; Feb 27, 2016)

Ah thats great. Thx for the pic!

mcminsen · #**800** Posted **Feb 28, 2016, 4:52 AM**

Quote:

Originally Posted by Otis_Van

Yep, it's the second crane...

Thanks for the heads up. Here are some more pics from today. I looked back in the thread and saw that the first crane was not finished being erected until over a month after the first bottom section appeared.

Feb.27 '16, my pics