kramer said:
blumoonrises said:
Of course the roof can be removed in sections..! it's not a prefab thing that was lowered into place..!
But as has already been pointed out these people don't do things by halves, we are more likely to end up with a new stadium which will be the best and most original design in the world.
No it can't
I'm qualified and confident enough to say it can.!
The inner ring and cable supports would stay in place until the new roof structure is completed with its own ring section, which is then attached and tensioned to the existing one resulting in one continuous ring angling up to the new higher section, before removing the old part.
Roof structure
Concept and structural systems
A central feature of The City of Manchester Stadium is its
distinctive and dynamic form, key to which is the structural
solution for supporting the roof. The roof structure essentially
comprises two separate structural systems.
12 cigar-shaped tubular steel masts up to 65m high
support a total of 76 spiral strand forestay cables in fanshaped
groups of five or seven cables per mast. Each
forestay supports an individual rafter. The rafters are supported at the rear of the Stadium bowl through integrated V-strut columns on the
concrete bowl. The V-struts allow sufficient headroom
between the rear seating terraces and roof structure as well
as providing for transfer of horizontal thrust from the rafters
to the bowl. Towards the inside of the Stadium the rafters
cantilever by up to 14m beyond the support provided by
the forestays.