Application of Variance Analyses Comparison in Seismic Damage Assessment of Masonry Buildings Using Three Simplified Indexes

Table 1

Damage categories of masonry wall.

Damage categories	Damage description: cracking and collapse	Treatments and measures
Slight or no damage	No obvious damage occurs in any wall pieces, or the number of the wall pieces with small cracks is less than 50% of all wall pieces in the seismic direction	Small-scale repair such as surface repair
Moderate damage	The number of the wall pieces with small cracks is more than 50% of the total walls in the seismic direction or the number of the wall pieces with large cracks is less than 50% of the total wall, or the number of wall pieces with severe cracks is under 10% of the total one	Large-scale repair including partial change
Heavy damage	The number of wall pieces with large cracks is more than 50% of all wall pieces in the seismic direction, or the number of wall pieces having severe cracks ranges from 10% to 50% of the total walls in the seismic direction	Total/partial reconstruction
Collapse damage	The number of wall pieces having the severe cracks, broken or collapse is more than 50% of the total walls in the seismic direction; or total collapse of building structure	Total demolition and reconstruction