Graphics Programs Reference
In-Depth Information
Rehabilitation
different retrofitting solutions to the owner
of the building and for helping him choose
one of them, as it has been proved in the
stairs comparison.
Rehabilitation is a kind of construction work where
the final result is even more important, and it must
be evaluated in a very earlier stage, before any
decision or construction work became definitive.
Rehabilitation must promote the preservation
of the historical value of ancient buildings and
improve a sustainable urban development. In the
rehabilitation of buildings the systems CAD could
be useful to the outcome of the building anomalies
analyses and also to workout alternative solutions.
Two recent works regarding Bologna master
thesis were developed based on CAD technol-
ogy. The students J. Neves and B. Martins had to
learn 3D advanced modeling. In both works, 3D
model was an important tool in order to survey
the anomalies in the structures and to support
decisions based on the visual analyses of alterna-
tive solutions of rehabilitation (Sampaio, Neves
& Martins, 2009):
•
Martins considered the installation of new
sanitary equipment in an old building,
which presents a significant degree of deg-
radation. In this case, two alterative solu-
tions were workout and modeled (Figure
2). By manipulating the models, the under-
standing of all sanitary elements in the
room is quite clear, better than just analyz-
ing plan drawings. In both solutions it was
carried out the information, concerning the
specification of sanitary elements, the
quantity of pipe elements for cool and wa-
ter supplies, the quantity and characteriza-
tion of materials for covering interior sur-
face of walls and to place over the floor.
The 3D models assist to work out this kind
of data and to clearly analyze the space in
an aesthetic point of view. The geometric
model also helps to identify incompatibili-
ties, when we need to introduce, new ele-
ments within old structures with few space.
•
Neves studied an historic building that
was submitted to a rehabilitation process
that includes the detection of structural
anomalies, the replacement of damaged re-
sistant elements and the adaptation of the
building to new services (Figure 1). This
application clearly demonstrates that the
3D geometric model allowed a quicker un-
derstanding of the structural organization
of the building and it was a useful tool for
the surveying and mapping of its damages.
It would also be very useful for presenting
The 3D model application is a very important
tool, to support rehabilitation decisions. In both
cases study, the 3D models were created in order
to better understand the geometry of the environ-
ment where the rehabilitation is going to take
place, to quantify the amount of work needed and
to evaluate different alternative of rehabilitation.
These works are a contribution to the acceptance
Figure 1. Perspectives of the historic building 3D model and alternative solutions for the stairs
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