Seismic Fragility of Chinese Light-Gauge Steel Keel Gypsum Board Partition Walls

Table 3

Division of damage states of LSKGBPWs.

Damage state	Description of damage	Repair measure
	Cracks starting in the gypsum boards, slipping of the partition wall-structure connection, loosening of the self-tapping screws around the gypsum board. Cracks in the middle of the gypsum boards of the transverse wall.	Replacement of the corner beads, caulking tapes, and loose self-tapping screws and surface plastering.
	Cracks between the gypsum boards of the longitudinal wall, crushing of the gypsum boards at the wall corner, failure of the self-tapping screws around the gypsum board or loosening of the self-tapping screws in the middle of the gypsum boards.	Replacement of the entire gypsum board and reinstallation of the self-tapping screws around the partition wall.
	Failure of the partition wall-structure connection, separation of the gypsum board from the steel stud, local bending, and plastic hinge occurring in the steel stud.	Removal of the damaged partition wall and installation of a new one.