How do you find weight to strength ratio of bridges? - Answers

The weight-to-strength ratio of a bridge is determined by dividing its total weight (dead load) by its load-carrying capacity (strength). The dead load includes the weight of the bridge materials and any permanent fixtures, while the load-carrying capacity is typically derived from engineering analyses that account for factors such as material strength and structural design. A lower ratio indicates a more efficient design, as it suggests the bridge can support a greater load relative to its own weight. This ratio is crucial for assessing the overall performance and safety of the bridge.