There
are many types and designs of buildings: Wood Frame, Steel
Frame, Masonry, and
Tilt-Up
Construction
are
just
a few.
All
of these
different
building types are susceptible to earthquake shaking. The
most common type of earthquake damage is structural, which can
even
be hidden damage, which can compromise the integrity of the building.
With
structural mitigation, damages can be reduced, to save lives
and protect property. Structural
mitigation is typically much more complex than non-structural
mitigation, and usually has a higher associated cost. To
determine whether or not structural mitigation is necessary,
a structural
engineer is usually required. These
professionals have the experience to make sound recommendations on
a very technical subject. |
FEMA File Photo:
Structural failure causes damage from the
Loma Prieta Earthquake in 1989
|
How
a building or home performs in an earthquake depends on different
factors, not limited to, but including
-
• Ductility - A building’s ability to return to it’s
original shape after an earthquake
• Strength - A building’s ability to resist earthquake
forces
• Connections - Strong connections of components increase strength
• Configuration - Square or rectangular buildings typically fare
better than irregularly shaped structures
• Soil Characteristics - Damage can occur if a structure
is located
on soils that sink, slide, or liquefy.
|
