Disaster Recovery and the Road Ahead - IGNOU

Damageability
It refers to the ability of a structure to undergo substantial damage, without partial or total collapse.
The key to achieve good damageability is the provision of several safety members to resist earthquake
forces. In such a case, if one member connection or joint fails, there should be something else to
share its burden to avoid complete collapse. This can be achieved by introducing several load paths
in order to support the structure.
Deformability
The deformability is the ability of a structure to
displace or deform substantially without collapsing.
A deformability action is mandatory to achieve
seismic resistance. The basic necessity to achieve
the ductility in a structure is that it should act as
well-proportioned, regular and well-tied single
unit, so that excessive stress concentrations are
avoided, and can easily be transferred from one
component to another. To achieve this, no joint
or connection should fail during the earthquake.
Deformability is the property of the structure as
a whole, while the ductility in turn applies to
materials as well the structures.
Source: BhujEarthquake/www.rediff.com
Desertification
Cutting down of forests and trees, over-cultivation of soil
and overgrazing is leading to desertification. The new
deserts that are being created are not hot, dry and sandy,
but are places where the soil has been mistreated and land
has been rendered useless for agriculture. Thus, these are
very different from the actual deserts.
Source: Desertification/ndmc.gov.za
Documentation
Documentation enhances learning by systematizing the means of data recording (figures, statistics,
events, cases) in order to provide ready reference for recall, updation and knowledge enhancement.
Domes
Rounded vault, which forms a roof.
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