Design considerations for earthquakes

1
Design considerations for earthquakes
2
Ductility
3
Building Configuration
4
Building Configuration
5
Torsion
6
Pounding
7
Pounding
8
Soft Story
9
Irregular Elevation
10
Irregular Plan
11
Hillside Structures
12
Structural System
13
Earthquake Fatalities 1900 - 1949
14
Earthquake Fatalities 1950 - 1990
15
Northridge Recap

• Seismicity and Geotechnical
• Bridges
• Wood Buildings
• Steel Buildings
• Concrete Structures

16
Design Philosophy
17
Design Code Philosophy

• Life safety vs. Performance based