Taxonomy Parameters
1. Main structural system
- Buildings constructed of brick in cement mortar walls
- Mortar mix is usually 1:6 or leaner
- Walls are generally one brick to one and half brick thick at about 150 to 400 mm in average
2. Height range
Single story
3. Seismic design level
- Fair construction quality and workmanship
- Few seismic enhancement measures
- Building designed for low lateral loads
4. Diaphragm type
- Roof/floor with insufficient in-plane stiffness
- Poor connection of the roof/floor to the lateral load resisting system
5. Structural irregularity
- Regular in plan and elevation
6. Wall panel length
- Wall length is more than 12 times the wall thickness
7. Wall openings
- Opening width in a wall between two consecutive cross walls is less than 0.35 times (0.25 times) the wall length in single-story (multi-story) building
8. Foundation type
- Prevents large foundation deformations and anticipated failures
9. Seismic pounding risk
- Seismic gap between buildings at least 4% of the height of the shorter building where the expected collision occurs
10. Effective seismic retrofitting
- Original structure, which undertook or not minor non-structural improvements and/or maintenance
11. Structural health condition
- Building structure is in overall good condition
12. Non-structural components
- Building has non-structural components that can produce human casualties and economic losses such as: parapets, ceilings, tiles, pipes, infill, etc.
