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1. Ahsaan ALi

2.  A combination of members connected together in
such a way to serve a useful purpose is
called structure.
 In other words Structural design is the methodical
investigation of the stability, strength and rigidity
of structures. The basic objective in structural
analysis and design is to produce a structure
capable of resisting all applied loads without
failure during its intended life.

3.  To contain or hold something, so that it is
not all over the place, and to keep it apart
from other things. To protect something, so
that it is not damaged. To support something
and hold it up. To span the space between
two objects so that they are connected.

4.  Composite construction is a generic term to
describe any building construction involving
multiple dissimilar materials. Composite
construction is often used in building aircraft,
watercraft, and building construction.

5.  A framed structure in any material is one that
is made stable by a skeleton that is able to
stand by itself as a rigid structure
without depending on floors or walls to resist
deformation. Framing, in construction, is the
fitting together of pieces to give a structure
support and shape. Framing materials are
usually wood, engineered wood, or structural
steel.

7.  A shell is a type of structural element which is
characterized by its geometry, being a three-
dimensional solid whose thickness is very
small when compared with other dimensions,
and in structural terms.

8.  A truss is an assembly of members such
as beams, connected by nodes, that creates a
rigid structure.