The largest Olympic stadium ever (capacity 110,000) is the
product of years of research and hi tech modelling.
Seats with a View
Before designing the stadium, architects Bligh Voller Nield worked out the sightlines
from every seat using computer simulations to ensure that no-one would miss out
on the action. The roof over each stand, made from an elegantly arched steel truss,
is designed to support itself without pillars, so nothing obstructs the view.
The Roof has an attractive concave shape which reflects the noise back to the
crowd creating as raucous an atmosphere as possible.
Bouncy Building Work
The steel trusses supporting the roof are attached to hinges at each end. This
allows for expansion and contraction of the structure in hot weather. In a country
as hot as Australia it is important that metal structures are given space to expand
or they might buckle.
The Eco Ampitheatre
In keeping with Sydney's "Green Games" policy, the stadium has natural
ventilation achieved by simple airways that allow hot air to rise up out of the
backstage areas, and cooler air to replace it. Much of the lighting and water
heating is solar powered.
September is a windy month in Sydney and a strong head or tail wind can significantly
affect race times. To minimise these dangers, a model of the stadium was tested
in a wind tunnel at Sydney University. The designers found that by building a
more open structure that allowed air to pass through the stadium more easily,
wind problems were significantly reduced.
Baron de Coubertin, founder of the modern games, thought that stadia should have
a capacity of no more than 17,000. There should be no seats and people should
be free to walk about and chat as events were going on.