Bench scale fire resistive test

Based on the section factor and sectional unfold, this study develops a ben ch scale fire resistive test for sprayed fire resistive material of steel s tructural members. H shape steel beams are converted into the size of 45 cm x 45 cm steel plates with varying thicknesses. Steel beams and plates are coated by sprayed fire resistive materials and manufactured to fire test sp ecimens. In addition, the relationship among fire rating (R), spraying thic kness (t), and section factor (W/D) of the two scale fire tests are establi shed and compared by applying a standard time-temperature curve under CNS 1 2514 specification and using a one dimensional heated model for plate speci men and a three dimensional heated model for the beam specimen to proceed w ith the fire resistive test. Experimental results indicate that, in terms o f its practical nature and safety, adopting 350 degrees C as the critical t emperature facilitates the evaluation of sprayed materials for fire protect ion of structural steel members, particularly when using test specimens of bench scale steel plates.