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Hall House 1
Hall House 1
Shiga, Japan
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Hall House 1
Shiga, Japan
A young
couple needed a house to enjoy their spare time, such as weekends or
nighttimes, having nice meal, enjoying films and playing billiards, which
requires a large space with, soundproof. So the first thing in question was how
to get a hall at least spanning 6m, preferably of reinforced concrete, within
the budget.
The
second question was to fit this hall into the distorted shape of the site,
formed of remains of building lots from two housing land developments, which
meet at an angle of 20 degrees, and the sloped road in front of it creating
1.5m difference in height from the one end of the site to the other.
We
formed the interior space of the house along with this sloped road, putting
parking lot at the lower end, the billiard -theater through the entrance,
dining-kitchen at a half-floor level going up the broad stairs, which served
also as a seat for a home-theater, allowing us to watch images on a huge
screen-wall at another end of the billiard hall, over the billiard table. As
the client needed no isolated space, a bedroom with a bathroom is situated also
at a half-floor level going up from the dining-kitchen, which means all the
interior space of this house forms one long inclined hall of 6m wide. To fit
the building into the irregular shape of the site, we bended this hall at an
angle of 70 degrees, at the end of the dining-kitchen as to put the bedroom
onto the billiard-theater slightly off to the side, and the gap of the first
and the second-floor became the terrace open to the broad view of schoolyard
next to the site, letting the light plentifully into the whole house through
bathroom surrounded by glass wall. All the rest of the windows that this house
has are only one at the dining-kitchen where the hall bended and the door at
the entrance, so that the interior space is not disturbed by passers-by on the
road along with the hall. In spite of exclusiveness of the interior space,
sloped roof provide inhabitants the large garden to sit and look over at the
level of the roofs of surrounding houses, where they can reach from bedroom
through a slope behind the house.
To
realize thus formed pentagonal plan and inclined shape of the roof, we adopted
a monocoque structural system of reinforced concrete, which means to envelop
the hall with concrete walls and slabs of approximately 180mm-thick, the least
to cover the 6m span of the hall, and a special water repellent, by spreading
into concrete slabs and walls, which allow us to let the rainfalls run down
from the roof to a gravel-covered ground into underground drains, using no
parapets nor gutters. Besides, the beam at the end of the second-floor slab
inclined at an angle of 45 degrees helps to bind two walls along with serving
as a headrest of the bedroom, and the roof folded into three slopes enables a
concrete slab to cover this long span without a beam, that gives adequate
ceiling height for each spaces as staircase, bedroom and bathroom. Thus, we
cooperate with a structural engineer using 3-dimensional models, 3d-CAD, and 3d
structural analysis soft along with the architectural form required.
In
this project, we tried to exclude our arbitrariness using general conditions or
client’s requests as various parameters to form the space. And in this case, as
the scale of the building was not huge, the exterior form can directly express
the structure, which envelops the interior space, and this monocoque structural
system of reinforced concrete allowed us to express the individual need to
external circumstances.
couple needed a house to enjoy their spare time, such as weekends or
nighttimes, having nice meal, enjoying films and playing billiards, which
requires a large space with, soundproof. So the first thing in question was how
to get a hall at least spanning 6m, preferably of reinforced concrete, within
the budget.
The
second question was to fit this hall into the distorted shape of the site,
formed of remains of building lots from two housing land developments, which
meet at an angle of 20 degrees, and the sloped road in front of it creating
1.5m difference in height from the one end of the site to the other.
We
formed the interior space of the house along with this sloped road, putting
parking lot at the lower end, the billiard -theater through the entrance,
dining-kitchen at a half-floor level going up the broad stairs, which served
also as a seat for a home-theater, allowing us to watch images on a huge
screen-wall at another end of the billiard hall, over the billiard table. As
the client needed no isolated space, a bedroom with a bathroom is situated also
at a half-floor level going up from the dining-kitchen, which means all the
interior space of this house forms one long inclined hall of 6m wide. To fit
the building into the irregular shape of the site, we bended this hall at an
angle of 70 degrees, at the end of the dining-kitchen as to put the bedroom
onto the billiard-theater slightly off to the side, and the gap of the first
and the second-floor became the terrace open to the broad view of schoolyard
next to the site, letting the light plentifully into the whole house through
bathroom surrounded by glass wall. All the rest of the windows that this house
has are only one at the dining-kitchen where the hall bended and the door at
the entrance, so that the interior space is not disturbed by passers-by on the
road along with the hall. In spite of exclusiveness of the interior space,
sloped roof provide inhabitants the large garden to sit and look over at the
level of the roofs of surrounding houses, where they can reach from bedroom
through a slope behind the house.
To
realize thus formed pentagonal plan and inclined shape of the roof, we adopted
a monocoque structural system of reinforced concrete, which means to envelop
the hall with concrete walls and slabs of approximately 180mm-thick, the least
to cover the 6m span of the hall, and a special water repellent, by spreading
into concrete slabs and walls, which allow us to let the rainfalls run down
from the roof to a gravel-covered ground into underground drains, using no
parapets nor gutters. Besides, the beam at the end of the second-floor slab
inclined at an angle of 45 degrees helps to bind two walls along with serving
as a headrest of the bedroom, and the roof folded into three slopes enables a
concrete slab to cover this long span without a beam, that gives adequate
ceiling height for each spaces as staircase, bedroom and bathroom. Thus, we
cooperate with a structural engineer using 3-dimensional models, 3d-CAD, and 3d
structural analysis soft along with the architectural form required.
In
this project, we tried to exclude our arbitrariness using general conditions or
client’s requests as various parameters to form the space. And in this case, as
the scale of the building was not huge, the exterior form can directly express
the structure, which envelops the interior space, and this monocoque structural
system of reinforced concrete allowed us to express the individual need to
external circumstances.
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