Fire Risk Evaluation of Bridge underneath Conditions based on Field Investigation

As the road network becomes complicated and the traffic volume increases, the occurrence of unexpected disaster including fire events also increases. In case fire occurs underneath a bridge, the bridge can be seriously damaged. Of importance is the underneath conditions of bridges such as the amount, quantity and kind of disposed scrapheaps as well exposure conditions. This study shares the information of fire risks of bridges by field investigation of bridge underneath conditions. In addition, proto-type model to assess fire risk of bridges was suggested based on the relative ranking method. And the weighted value for fire risk and fire resistance factors were determined.