How Many bolts are in the Brisbane story bridge?

Answer 1

BRISBANE STORY BRIDGE -

The plates of steel are held together by around 6 million steel rivets.

Some more interesting features and statistics of the bridge are -
It is interesting to note that the four pylons are actually placed mainly for aesthetic reasons on each corner of the bridge. The pylons are about 90 metres above the average water level. The Sydney Harbour Bridge design had to perform functionally and be pleasing to the eye as well. The pylons are made of concrete that is covered by grey granite from Moruya on the south coast of New South Wales.

When the bridge was constructed the use of reinforced concrete was in its infancy. Today the Harbour Bridge ranks second or third in the world in terms of span but it is still considered to be the greatest of its type in the world because of its load bearing capacity and width of nearly 50 metres.

Known locally as the 'coat hanger' and now more commonly as 'the bridge', the bridge was manufactured in sections on a site on the western side of Milsons Point. About eighty percent of the steel came from England while the remaining twenty percent was manufactured here in Australia. The construction of the arch was begun from both sides of the harbour with cable support for the arches. In 1930 the two arches met. The construction of the deck then proceeded from the middle outwards towards each shore as this was easier than moving the construction cranes back to the Pylons.

In 1932, when it was opened, it was the longest single span steel arch bridge in the world. The main span is 503 meters (1,650 feet) across it consumed more than 52,800 tonnes of silicon based steel trusses. The plates of steel are held together by around 6 million steel rivets. It originally carried road transport, trains and pedestrians. From start to finish, the bridge and its approaches it took eight years to complete. This included a period of maintenance that extended for a six months after the opening. Maintenance after the completion became and still is, the responsibility of the New South Wales State Government.

The two eastern lanes were originally tram tracks . They were converted when Sydney abolished its trams in the 1950s. Today it carries eight traffic lanes and two railroad lines. One of the eastern lanes is now a dedicated bus lane. The bridge is often crowded, and in 1992 the Harbour Tunnel was opened to help carry the traffic load. The traffic levels were substantially reduced compared to the period before the tunnel opened.

Answer 2

Previous answer is giving information about the Sydney Harbour Bridge, not the Storey Bridge, but I don't know the answer.

Answer 3

1,675,349