터널 화재시나리오에 따른 콘크리트 PC패널 라이닝의 전열특성에 관한 해석적 연구

An Study on Heat Transfer Analysis to Concrete PC Pannel Lining under Tunnel Fire Scenario

This study was performed FE numerical analysis under 120-minute fire conditions, using the ABAQUS, a wide use software, on the basis of the test results by concrete tunnel lining fire strengths (ISO, RWS, and MHC). The concrete material test was to secure the material properties of concrete linings, which were numerical analysis input conditions. And then built the material properties, such as specific heat, heat transfer rate, heat expansion rate, density, elasticity coefficient and compression strength under high temperature conditions, as database at 20 <TEX>$^{\circ}C$</TEX> to 800 <TEX>$^{\circ}C$</TEX>, applying them to analysis as input values. As a result, the tunnel linings under RWS fire conditions saw fire temperature rose to maximum 1119 <TEX>$^{\circ}C$</TEX>at the location of 5 mm above a thermal surface, and saw surface temperature amount to 1214 <TEX>$^{\circ}C$</TEX> in the middle part.