| Title |
Evaluation of Fire Resistance for Composite Column Coated Intumescent Paint According to Loading and Unloading Test |
| DOI |
https://doi.org/10.5659/JAIK_SC.2017.33.3.13 |
| Keywords |
Intumescent Paint ; Composite Column ; Covering Thickness ; Load ratio ; Fire resistance |
| Abstract |
Concrete Filled steel Tube columns are widely employed in construction field thanks to their structural efficiencies by avoiding stress concentration area and improving workability in fabrication and maximizing the composite effect. Although CFT columns have structural advantages over other members and are widely used, they are classified as non-fireproof in Korea because the steel tubes are directly exposed to a fire. Thus, fire coating required for the columns by the law results in inefficient design. This study suggests CFT columns with reduced Intumescent paint coating to enable improved fire-resistance performance for 2 ~ 3 hours. The purpose of the study is to analyses their fire-resistance performance using the variable of experimental method (loading and unloading) which is the major factor in the performance and suggest efficient functional design with reduced Intumescent paint coating. |