Design of Steel Structure
The centrifugal force due to curvature of track is assumed to act on the bridge at a height of

1.23 m above the rail level
1.83 m above the rail level
1.50 m above the rail level
2.13 m above the rail level

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Design of Steel Structure
The mechanism method and the statical method give

upper bound on the strength of structure
lower and upper bounds respectively on the strength of structure
upper and lower bounds respectively on the strength of structure
lower bound on the strength of structure

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