Bridge-Equivalent Force Method

Equivalent force method determines the tendon forces and apply them directly to the grillage model.

The forces and moment due to tendon are applied along the girders in grillage model.

The equivalent force is applied at anchorages and the point of change in tendon angle.

For curved tendon, equivalent radial force in the form of load intensity should be applied along the curve radially.

Equivalent force method can be applied for wide range of structural arrangement. However, it requires more effort to develop accurate analysis model and equivalent loads.



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