The new river gorge bridge in west virginia is a steel arch bridge 518 m in length. how much does the total length of the roadway decking change between temperature extremes of –20.0°c and 35.0°c? the result indicates the size of the expansion joints that must be built into the structure.

Explanation:

Given:

length of steel arch bridge,

temperature difference,

We have,

coefficient of linear expansion of steel,

So, the change in length of the bridge:

Above value must be the size of expansion joints.

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