| Title |
Study on the Fire Resistant Performance of Load-Bearing Walls using Light Gauge Steels and Gypsum Boards |
| Authors |
Kwon In-Kyu ; Jee NamYong |
| Keywords |
Steel Framed House ; Load-Bearing Wall System ; Fire Rating ; Type X |
| Abstract |
Steel framed house consisted of load-bearing walls using steel stud 1.0 to 1.2 mm in thickness and finishing materials such as gypsum board or plywood and floor members made of concrete, steel joist and roof members made of steel studs, plywoods and gypsum board was mainly introduced in Korea since 1996 by POSCO. The aim of paper is to evaluate the fire resistant performance of load-bearing wall through loaded-fire tests and unloaded-fire tests according to KS F 2257(1993) and to suggest the new types which meet the minimun requirement of 1 hour fire resistant rating defined at the fire regulation. The newly designed fire testing process for the load bearing-walls designed to experiment firstly in Korea was suggested and adopted by the fire authorities. In 1999, the newly changed fire test method or KS F 2257-1,4,5,6,7 contained the same ways of the applied load for the loaded-fire test. After lots of loaded and unloaded fire test, we could find out that there were a quite different fire resistant characteristics according to the sorts of finishing materials and thickness and whether the application of insulation materials or not. To obtain 1 hour fire rating for the load-bearing wall system with steel studs and gypsum boards, 2 plies of type X were essentially needed. |