In the study of structural response to hazardous loads
including earthquake and blast, nonlinear analysis of structures has become
increasingly important.
Usually, the buildings are usually designed for seismic
resistance using elastic analysis; as most may experience significant inelastic
deformations under big earthquakes. To determine the realistic behavior of
structures under such conditions, Modern performance-based design methods
require ways.
With the help of available test data and advancements in
computing technologies, Nonlinear Structural Analysis offers
the means for calculating structural response even beyond the elastic range,
including stiffness and strength deterioration associated with inelastic
material behavior as well as large displacements. This suggests that nonlinear
analysis can play an important role in the design of new plus existing
buildings.
It is not easy to perform nonlinear analysis it involves
significantly more effort and also should be approached with specific
objectives in mind. Here are some typical instances where nonlinear analysis is
applied in structural earthquake engineering practice:
1. Assess and design seismic retrot solutions especially for
existing buildings
2. In Designing of new buildings that employ structural
materials, systems, or other features that do not conform to current building
code requirements;
3. Assess the
representation of buildings for particular owner/stakeholder requirements.
It is necessary to develop the basis for the acceptance with
the building code authority at the outset of a project especially if the reason
to use a nonlinear analysis is to create a design that would not satisfy the
prescriptive building code requirements. However, make sure that the design
basis should be clearly defined and agreed upon, outlining in specific terms
all significant performance levels and how they will be evaluated.
So, while working on your next project make sure you get the
top class, the latest non-linear structural analysis & Structural Engineering Software Programs designed specifically for structural engineers so that you can
have better results. Moreover, to get accurate results, you can also check that
the tool you are choosing allows structural engineers to study the 3D behavior
of structures through both the continuum and discrete stages of loading or not.
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