Main
concept
Our
proposal for Daegu public library is conceived as an information portal that is
both connected and connects to the city. The formal organization for the Daegu
library emerges from a pinching of the floor slabs that the create structural
framework for the building and provide oculus-like forms that open towards the
city engaging the passersby. These oculi that open onto the city provide both
the structural and organizing logic for the new building as well as acting as
connectors to the city where information can flow into and also outwards.
The
library plays a critical role to reinforce local community by providing free
access to information through the open oculi and small “info pods” scattered in
the landscape, but also because it provides spaces where community events such
as fashion runway show, weddings, lectures, exhibitions, and other community
gathering events can occur.
Structure
The
oculi are the main organizing structural element and are designed so that the
ground floor can be supported solely by these structures, and is enclosed with
setback glass planes, providing an inviting and open user space. The second
floor is set back slightly from the façade and supported with a six column grid
that help modulate the book stack and reading areas in the general collection
room and the children’s room.
The
structure of the building utilizes the Cobiax voided concrete slab system for
thin slabs and large spans. The system benefits from a reduced amount of
concrete because of spherical void formers embedded throughout the slabs which
reduces weight as well as co2 emissions in the production of concrete.
Sustainability
concept
Our
proposal attempts to the Daegu Library an ecological and environmentally
sensitive node. Thus it is designed to harness solar light, and has a water
filtration system in the green roof to collect water for the park and street
irrigation.
The
façade uses voronoi subdivision to create a unique window frame design that
provides larger panes at the floor level for views but is further subdivided
above for shading and light control. The glass panes are actually transparent
solar cells: they use a new kind of polymer solar cell (PSC) that produces
energy by absorbing mainly infrared light, making the cells nearly 70 percent
transparent to the human eye. It is a thin photo-active plastic places over the
glass that converts infrared light into an electrical current, which can
subsequently be used to power the library’s energy needs.
Oculi
The main facade oculi is programmed with
multi-functional room, visually and informationally engaging the city. The
enclosure can be fully opened for events that require spilling out into the
city (concerts, screenings,...), or can be enclosed for more controlled
environment.
The two
frontal Oculi (north-east & north-west) are “information oculi”: exterior
spaces with ‘smart’ surface that absorbs information from the environment and
projects it back our through led pixel screen on oculi surface. It can also be
used for digital exhibition and projections. The two rear Oculi (south-east & south-west) as well as the south
Oculus are interior and provide internal vertical communication & common
gathering space for staff.
Landscape
We propose to extend the landscape concept to the
park adjacent to the site, providing a “Library Park” equipped with playgrounds
for children, sport facilities and open event spaces for the community at
large. The strategy is to go from most dense paths and tree-scape at the
opposite extreme of the park that becomes gradually more open and less dense as
one approaches the library entry, creating pockets for community events of
varying sizes, large gathering to smaller.
This landscape pathway is also scattered with “Info
Pods” that provide de-centralized search terminals and portals to connect to
the library collection, as well as feeding information about the city and
related events.
Ground Level
Visitors are welcomed to the main entry through the
landscape path design, and are met with an open plaza and the multi-functional
room oculus that opens up on the main façade; suggesting events that may be
happening in the interior. The ground floor is an open, dynamic and spacious
area where visitors can easily access the information portal arranged along the
glass facade, or go to the information counter adjacent to the grand staircase
that provides a focal attraction point in the interior. This stair case gently
directs visitors to the reading areas above as well as providing a large
gathering space.
The Lifelong
Study Room is placed on the ground level to ensure accessibility even when
the library might be closed. It is thus accessible from the street and provides
flexible spaces were community gatherings and events can take place. The Culture classroom uses a cutout from the
oculus to create a unique podium –like space from which the speaker can address
the crowd, and it is a space that can expand into the multifunctional space
right next to it if the amount of attendees requires it. The seminar room and
language lab are also flexible rooms within the larger lifelong study area.
Library Floors
The grand staircase leads to
the first floor which is conceived as a large open space with smaller zones
within it, that create a sense openness while providing a more intimate scale
at the different programmed spaces. The generous checkout counter has direct
access to the offices, which have their own access from the ground floor oculi.
The first floor is shared by the Preservation Room and the Children’s Library. The Children’s Room is conceived as a
playful and interactive space, with reconfigurable programmed zones within the
larger floor area. It features a "reading hill"; a stepped form that
rises above ground providing contoured seating with visual connection to the
reading floor below (risers are glass) and a perched view of the kids library
and multimedia projection screen. The kids book stack are low and circular to
provide encompassing environments for children who can gather inside them
providing a sense of security and comfort.