THE LIGHT SHELL
DESIGN CONCEPT:
The new pavilion will form a glowing shell in the shape of
a large river pebble. The concept derives from the idea that the pavilion
should be directly related to the water of the Basingstoke Canal and its
surrounding natural features while forming a protective shell against the busy
thoroughfare. The pebble shape of the shell is informed by the idea of stones
formed by the erosion of water. Thus,
the new pavilion will stand at the canal’s edge like an oversized artificial cobble
formed by the flow of water. In
addition, the new pavilion will introduce a formal contrast and dialogue
between its undulating pleated shapes and the
rectangular frame of the Lightbox façade.
The singular spiral opening in the pavilion is designed to
fully frame the canal and its surrounding environment while blocking noise and
view of the busy street. The
circulation path to enter the pavilion is designed as a clockwise spiral,
starting at the doors of the Lightbox, leading around the bulging exterior of
the pavilion, up a slow ramp and finally entering the pavilion space through an
spiral opening. Once inside, the
clockwise motion continues as the visitor either attends a presentation, a
party, an exhibition, or simply wishes to sit an to contemplate the view of the
water and greenery.
SCENARIOS:Presentation space:
A set of double seating steps is designed as integral part
of the pavilion’s floor system. It will
allow seating for about 30 persons, all facing the opening towards the
canal. During visual presentations, a
spirally curved sail will form a projection surface while an additional sail
will provide the necessary darkening for the space.
Exhibition space:
The flat exhibits shall be mounted onto circular
translucent boards that are suspended from cables between the ceiling rail and
the seating steps during the time of an exhibition. The circular boards will accommodate A1 formats both, vertically
and horizontally. The sculptural,
freestanding exhibits will be concentrated in the center of the oval space in
order to allow for the clockwise spiral circulation through the space.
Informal Gathering and Party Space: Boards and exhibits will be taken away while, the sail at
the entrance will be retreated to maximize the views of the water and greenery.
CONSTRUCTION:
The basic construction will be a rib-shell made from
overlapping curved plywood segments bolted with each other at the laps. The ribs have cut-outs at their at 90 degree
intersections. Simple steel angles at the intersection will provide additional
stability. The segmented construction
of the rib shell allows erection of ribs and rib joints simultaneously a fact
that provides constant stability of the system during erection and avoids the
use of complicated support structures.
Facit’s milling machines will mill the rib-sections from
standard plywood sheets and mill bolt holes and cut-outs. All rib-segments will be numbered and
labeled for erection. During erection a
crew of two should be able to erect the basic structure of the shell in one
day.
Once the basic structure is complete, a precut, pre-sewn,
translucent polyester sail fabric with integrated Velcro attachment pads and
spanning cables at its perimeters will be fitted around the structure to form
its skin. The pleated nature of the
skin will provide controlled water-flow on its surface, while its translucency
will allow the shape to glow at night when lit from the inside. Once the skin is completed, flexible
spanning cables sewn into the perimeter will be bolted to the perimeter of the
structure.
The stepped bench on the inside and the floor will be
milled from narrow plywood slats. Due
to the shape and length of the slats, it will be possible to form the curves of
the bench surfaces around a series of shape forming bench ribs attached to the
main structure.
Ambient
dimmable lighting will be provided at the interior by gentle washers mounted on
a shelf above the opening, while spot lights for exhibits will be concealed
between the construction ribs. At the
exterior, there will be no lighting aside from the required safety illumination
in order to maximize the effect of the glowing light shell in the dark.