B-side / Bridge / Bit / Blow / Bowl / Bulge■ Analysis of various wind that an aspect brings about5m/s■ BIM as feedback
The signiﬁcance of Building Information Modeling is the point that can perform feedback easily. When we wrestled withthis problem, we thought about making use of the signiﬁcance suﬃciently. It is to arrive at a form to carry the cold air of
the basement to in SHIBUYA Bridge or the ground eﬃciently by repeating feedback that we went. In the early stage ofour proposal, the wind from underground was confused in SHIBUYA Bridge. Therefore, SHIBUYA Bridge was not able tocarry the wind eﬃciently. Then, feedback can be repeated and, ﬁnally SHIBUYA Bridge can carry a wind now smoothly.
■ New city space device
The derived form plays a role as new city space device. When it is ﬁne, the crossing becomes the small concert hall.
The crossing becomes the place where children play after it rained. In late fall, the crossing transforms itself into the bedof fallen leaves.

0m/s

In study1, the conditions which a wind hits were set to the ﬂatground. The wind was divided into right and left when it hit theﬂat ground. The wind does not ﬂow to an earth surface. It
followed that the wind was always disturbed.
5m/s

0m/s

In study2, the wind set up the conditions which hit a hollow.
The wind hit the hollow and ﬂowed into right and left equally.
Moreover, the wind is ﬂowing also on the earth surface. The
wind ﬂowed than study1 without being confused.
5m/s

0m/s

In study3, the conditions which a wind hits were set to the bighollow. The wind hit the hollow and ﬂowed into right and left
equally. The wind is strengthened by the big hollow.and The
wind is ﬂowing to the wider range.
5m/s

0m/s

In study4, the wind set up the conditions which hit a mountain.
The wind ﬂows after gathering in the center. Therefore it was latethat wind ﬂowed. In addition, the wind ﬂowed gently.
5m/s

0m/s

In study5,The conditions which hit a wind to a big mountain were
set up. Winds ﬂow, after gathering in a big mountain. Therefore, it became later than study4 that a wind ﬂows. In addition,
the wind ﬂowed gently.

■ An existing inheritance
The existing pedestrian bridge hanging on the site connects buildings by height of the second ﬂoor. The characteristic of the how to connect is a very rational point. SHIBUYA Bridge is the suggestion that followed this characteristic. Furthermore, SHIBUYA Bridge is a device to direct more pleasant city space.
Existing■ A crossing is The place where people cross
A crossing of the pedestrian bridge is the place where every people come and go. However, under the present
conditions, enough area to plan interchange is not secured. In SHIBUYA Bridge, a crossing becomes larger thana normal pedestrian bridge. Therefore, as for the people, various interchange is carried out at a crossing.

SHIBUYA Bridge

Existing

SHIBUYA Bridge■ Cold air of the underground
The atmosphere of the underground keeps approximately constant temperature through one year. However, under the present
conditions, the cold air or warm air is shut in in the underground. Therefore we make a hole from the underground to SHIBUYA
Bridge. Through the hole, air of the underground ﬂows out to ground and SHIBUYA Bridge.
Existing

SHIBUYA BridgePEOPLE

WARM AIRAUTOMOBILE

COLD AIRTRAIN

CULVERT■ Analysis of the wind of a site
1 . Bit : The wind of present Shibuya was analyzed.
There is only one way of the wind exceeding astation building.

rain

2 . Bridge : The ways of a wind increase in number
rather than 1 at the time of a bridge.
3 . Bowl/Bulge : It is a comfortable bridge from which
a loose wind escapes.

breezeROPPONGI st.
pool

MIYAMASUZAKA-SHITA
MEIJI st.

15℃ 〜 18℃

CULVERTSHIBUYA sta.