Research Article

Semiquantitative Fire Risk Grade Model and Response Plans on a National Highway Bridge

Table 10

Characteristics of analysis model.

DivisionContent

FDS analysis time10 MW2980 sec
20 MW5600 sec
30 WM6060 sec
50 MW
100 MW
130 MW10800 sec

Size of slab bridge (W × D × H)9 m × 8 m × 1 m

Mesh size24 × 20 × 40 = 19,200 (0.4 m × 0.4 m × 0.4 m)

Atmosphere temperature (°C)20°C

Boundary conditionFloor and ceilingHeat-insulated structure
OthersAtmosphere air condition