วันจันทร์ที่ 15 กุมภาพันธ์ พ.ศ. 2553

Iconic Civil Engineering - Hangzhou Bay Bridge

With the long 22 miles (36 km), the Hangzhou Bay Bridge links the east of Jiaxing and Cixi City in north China to south, shortening the distance between Shanghai and Ningbo by 120 km.

The bridge was built in one of the richest regions in the country and strengthen the development of the Yangtze River Delta, also known as the golden triangle area. This triangle is composed of Ningbo, Shanghai and Hangzhou, and has the fastest growing economy in China.

About eight percent of the total population lives in the delta of the Yangtze River and the economic boom has more than 21% of gross domestic product in China. The opening of the Hangzhou Bay Bridge offers new economic opportunities, especially for Ningbo, as China is the second largest cargo port.

How exactly does the Hangzhou Bay bridge across the sea?

The Slim feat of modern technology is a suspension bridge, serpents six lanesboth directions in the form of a massive p. This form is believed to minimize the impact of the tsunami strong annual locally known as the silver dragon.

The Hangzhou Bay Bridge has two openings leading to the north and south, measuring 448 meters and 318 meters, respectively, and has an orthotropic steel deck.

Taking more than six hundred design professionals for nearly a decade of feasibility studies, Hangzhou Bay Bridge was finally approved in 2003. The cost is $ 1.7 billion (11.8To construct billion yuan) and its duration is expected that at least a hundred years.

Although the final link was made in 2007, followed by an official opening ceremony of Hangzhou Bay Bridge was not open to the public until 2008, required as the first thorough examination will be conducted to ensure their safety.

The speed limit on the bridge is 100 km (62 miles) per hour, vehicles are charged a fee of 80 yuan to cross. Drivers in danger, are curious, given by alarmdecorated by colored lights flashing, that the length of the bridge. There are plans for a service center to be built on an island in the middle of the bridge, including a restaurant, a hotel and a petrol station, as well as in public parks at both ends.

These additions will further strengthen this fantastic piece of architecture, so that the Hangzhou Bay Bridge is not only an important link between the two regions for development, but also a tourist attraction.

Concrete Structures Bridge Works การเตรียมงานก่อสร้าง

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