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POLYTECHIC UNIVERSITY OF THE PHILIPPINES

Sta. Mesa, Manila

COLLEGE OF ENGINEERING

DEPARTMENT OF CIVIL ENGINEERING

STRUCTURAL THEORY 1

RESEARCH WORK NO. II

Cable Stayed Bridges

(FAMOUS CABLE STAYED BRIDGE IN CHINA)

SUBMITTED BY: SUBMITTED TO:

BARLAO, ALIEN M. ENGR. NOEL MASCARIÑA

2009-01185-MN-0

BSCE IV-I

Cable-stayed bridge is a bridge that consists of one or more columns (normally referred to as towers or pylons), with cables supporting the bridge deck. There are two major classes of cable-stayed bridges: In a harp design, the cables are made nearly parallel by attaching them to various points on the tower(s) so that the height of attachment of each cable on the tower is similar to the distance from the tower along the roadway to its lower attachment. In a fan design, the cables all connect to or pass over the top of the tower(s). Compared to other bridge types, the cable-stayed is optimal for spans longer than typically seen in cantilever bridges, and shorter than those typically requiring a suspension bridge. This is the range in which cantilever spans would rapidly grow heavier if they were lengthened, and in which suspension cabling does not get more economical, were the span to be shortened.

Tsing Ma Bridge (Hong Kong, China)- Linking the Tsing Yi and the Ma Wun Islands, over the Ma Wun Channel, is the sixth largest suspension bridge of the world, the Tsing Ma Bridge, Hong Kong. Work on this bride started in the year 1992 and completed in the year 1997, when it was inaugurated by Baroness Thatcher. The Bridge carries six lanes of vehicle traffic along with two rail tracks. It is said that there are so many cables in this bridge that it could circle the world four times!

Hangzhou Bay Bridge (Zhejiang, China)- is a long highway bridge with a cable-stayed portion across Hangzhou Bay in the eastern coastal region of China. It connects themunicipalities of Jiaxing and Ningbo in Zhejiang province. At 35.673 km (22 mi) in...