The Arc | 88m | 29fl | Completed

[RDW989]

And the bridging begins.
My pix, June 4

[IMG]Arc3060418 by RDWyvr, on Flickr[/IMG]

[IMG]Arc2060418 by RDWyvr, on Flickr[/IMG]

[IMG]Arc1060418 by RDWyvr, on Flickr[/IMG]

[Canucks223]

Wohoo! Vancouver's first connecting towers! Albeit a much smaller version than the others.

[Spr0ckets]

Those are some chunky steel beams.

Not surprisingly.

Almost as tall (or thick) as an entire storey is high.

[truenorth44]

Originally Posted by Spr0ckets

Those are some chunky steel beams.

Not surprisingly.

Almost as tall (or thick) as an entire storey is high.

I'm surprised that the tower crane can lift that - I didn't think they were that strong. Impressive!

[officedweller]

Nice, thanks!

So the question is:
- are those temporary supports for the formworks to build the bridge in concrete at the level with the toothgaps,
or are they part of the structure of the bridge itself (built in steel)?

[logan5]

You'd think they wouldn't have an opening in the stairwell core just above those beams if they were going to build up from there, Maybe they are going to raise them? Also, I thought there was a swimming pool going in there. Plus 10 more stories. that's a lot of weight. I recall Central had supertall tables to form the initial bridge section slab and supertall columns to support the bridge section itself. This project doesn't look like it's using that method of support, so I'm guessing the beams stay. Anyways, interesting bit of engineering.





My grainy pictures. They look way better on my phone. We need our resident pro photographers for this important phase of the project.

[excel]

Cool pictures

[Otis_Van]

Originally Posted by officedweller

Nice, thanks!

So they question is:
- are those temporary supports for the formworks to build the bridge in concrete at the level with the toothgaps,
or are they part of the structure of the bridge itself (built in steel)?

Originally Posted by logan5

Also, I thought there was a swimming pool going in there. Plus 10 more stories. that's a lot of weight. I recall Central had supertall tables to form the initial bridge section slab and supertall columns to support the bridge section itself. This project doesn't look like it's using that method of support, so I'm guessing the beams stay. Anyways, interesting bit of engineering.

“In order to manage the “arc” structure, the building will include giant steel and concrete beams that will be made at the building site. Glotman-Simpson is taking on the engineering work for these elements as well as the 60 foot horizontal span that will sustain the pool area. “In this particular case, we really challenged our office and went back and forth with Walter and Peter to try and create a space that gave them what they wanted, which was this really cool clear span space that’s high, that has the ability to put a pool in it, between the beams,” said Geoffrey Glotman, “and to do that overall was a really interesting, exciting opportunity for us.”

Source: https://glotmansimpson.com/2016/02/22/the-arc/

[officedweller]

Thanks.

The haven't put any cross braces in the middle section, so that's probably where the pool will go.

I asked because the tooth gap areas on the floors above look like they would provide strong connections for a [concrete] transfer beam to sit on the concrete shear walls.
I don't know the nature of the connection of the steel I-beams to the concrete shear walls (they don't seem to sit embedded in or on top of the shear walls since they were added after the walls were built).

Checked out the renderings and I think I know what's happening.
I suspect that the steel I-beams will support the pool and amenity level,
and the bulk of the structure housing the residential units in the "bridge" will be supported by a concrete transfer beam at the level of the toothgaps (or a higher level). The high ceiling of the amenity space would allow a thick transfer slab above it without really losing a floor (but there do look to be some columns in the amenity space, so maybe the load does transfer down to the steel beams).

Originally Posted by christmas

http://vancouver4life.com/the-arc-by-concord-pacific/

[logan5]

A lady in an orange vest directing traffic told me those beams are temporary. Those beams are support for the forms that will make up the 19th floor. There will be two massive 8 foot by 8 foot concrete beams that will span the 2 towers at the 19th floor, with the pool being in between these 2 beams. The 2 temporary I beams will eventually be lowered down using a winch system.

[Spr0ckets]

I guess it makes sense to have them be concrete beams (still 8' beams, though) rather than pure steel beams.

Most of the forces and loads in that bridge section will be downward compressive forces rather than the sort of tensile, torsion and shear forces you find like in a regular bridge (where it would then make sense to use steel trusses and beams).

[officedweller]

Thanks!
My concern was the connection of those steel beams to the shear walls.
They looked to be "bolted on" - not strong enough to carry the load of the structure above.

[Vanville]

A few shots (my pics):

June 7

June 9




June 17

[mcminsen]

June 23 '18, my pics

[mcminsen]

June 23 '18, my pics

[officedweller]

Thanks!
There's also a nice perspective of the bridge from Pacific Blvd & Cambie (left turn lane or further back from the median)

[mcminsen]

June 27 '18, my pics

[mcminsen]

June 27 '18, my pics

[Vin]

Thanks McMinsen for the updated photos! Lovely towers here, as their claddings and funkiness remind me of those in Melbourne.

Concord brought in seafoam glass towers into the downtown peninsula in the 90s, which was avant garde at its time, and now it is also bringing in another new form to this city.

Also love the retail units around, although I wish they have higher ceilings (this I blame it on viewcones).

[red-paladin]

Thanks for the pics!