The main span of the Sutong Bridge across the Yangtze River was
completed yesterday.
With a span of 1,088-m, Sutong takes over from Japan's 890-m Tatara
Bridge as the world's longest cable-stayed bridge. It also holds a
number of lesser records.
The 6.45-billion-yuan (US$845 million) bridge, which links
Suzhou and Nantong, two of the main cities in Jiangsu Province, is expected to have a
far-reaching economic impact on the affluent region.
"The project has gone through a host of extremely tough
technical challenges," Sun Jun, a bridge expert and member of the
Chinese Academy of Sciences, said yesterday at a special
ceremony.
"It is not only a milestone in China's bridge-building history,
but also representative of state-of-the-art bridge construction
technology."
Besides its huge span, Sutong boasts the world's two tallest
towers at 300.4 m, about the same as a 100-story building --
compared with those for the Tatara Bridge, which measure 224 m. The
towers sit on the world's largest pier base, which is about the
size of a football pitch and is anchored 80 m into the
riverbed.
Hundreds of steel cables attach the bridge deck to the two
towers to help it withstand heavy winds traveling up the Yangtze.
The longest cable, which is the longest single stayed-cable in the
world, runs 577 m, 100 m further than its equivalent on the
Tatara.
Shanghai's Bao Steel provided the steel for the cables and this
was the first time a major bridge in China has used cables by
domestic steel-makers.
Ole Rud Hansen, project manager with Cowi A/S, a Danish firm
consulting on the bridge's construction management, said: "This is
a great project of international quality. China should take pride
in it because it is Chinese design, Chinese engineering, and
Chinese management.
"It is particularly good for Nantong, because from now on it is
linked to the south bank (where the cities' business connections
are)."
Local officials and businesses said the bridge will erase the
chasm dividing Nantong and Suzhou. In the past, ferries provided
the mode link between the two. The time it takes to travel from
Nantong to Shanghai will be cut to about one hour from the current
three hours.
"By exploring the competitiveness of Nantong's manufacturing
industries we aim to become a northern Shanghai," Luo Yimin, Party
Secretary of Nantong, said.
The bridge's project management team said the bridge will open
to traffic in the first half of next year -- about a year ahead of
schedule.
The Beijing Olympics torch relay will pass over the
bridge.
(China Daily June 19, 2007)
