The Art of Structural Design - page 36

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Category 1: Buildings
1
Roofstructure Dental Office - Tienen, Belgium
SE
Contact
Dirk Jaspaert
Address Leopold Ruelensstraat 27
3010 Leuven, Belgium
Website
BAS bvba is primarily known for giving advice on architectural structural
engineering. From the architect’s first conceptual idea onwards, interplay
between spatial form and structural concept will be sought to obtain
maximum coherence. In close collaboration with the architects and other
advising team members, a number of design-cycles are organized to
confront ideas which gradually result in a global concept of coherence
wherein structure is (be it hidden) fully present.
Owner
Private
Architect
51N4E
General Contractor
Memibo bvba
Engineering Office
BAS bvba
Construction Period 01/2011 - 01/2013
The site for the building was challenging, being triangular with a three
storey high wall on two of the sides. The third side offers a beautiful
view of the garden. It would be a shame to block this view with structure,
and therefore we needed to cover 9 m in a single span, preferably by a
stiffened shell as thin as possible.
The architect’s concept idea was to fold a DIN-sized piece of paper into a
shell. This folded plane doesn’t follow the catenary arch, moments were
introduced into the shell and stiffening structure. SCIA Engineer helped to
model the wooden shell and curved beams.
The variable wind loads and uneven snow loads made it difficult to derive
a single direction of displacements. We placed a cutting edge at the glass
window to investigate the displacements in each direction along this line.
With this data, we could develop a connection detail with enough freedom
between roof and glass. The shear forces between the thin-layer shell and
the wooden beams where also calculated to evaluate the screw and glue
connection.
BAS bvba
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