One steel cable of the Millau viaduct is made from an average of seven strands of steel cable, and each stand is 1cm in diameter. Calculate

a. The load required to break one of the steel cables.

b. The compressive strength of one of the steel cables.



information:

Bridge: Millau viaduct

Materials: Steel cables , Steel span



Material tensile strength (N mm -2): 550

Material compressive strength (N mm -2): 310

Longest single span (m): 342

Highest clearance to ground level (m): 270