B5 6.1.2 - novaradnicepraha7.cz

CCEA
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C E N T R E
T O W N
H A L L
A R C H I T E C T U R A L
F O R
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C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
ANNOTATION
ANNOTATION is a description of the fundamental idea of the design proposal. It should be inserted right after the title page of the portfolio.
This is an open-air building taking inspiration from three ideas, which are the Public access, Passive energy,
and Timber Cladding of the existing structure.
The proposition is for a two story entrance hall containing the Council room and stairs to the Mayors office
and public balcony to the chamber on the first floor and a new (lowered) floor leading to a Garden Courtyard
at the rear of the building.
On the second, third, fourth, fifth, sixth, and seventh floors there are Loggias open at the north and south
ends (in Summer) containing the Public Counters and Waiting Areas attendant on the offices, facilities and
services of Prague District 7 Council.
The Loggia admits fresh air to the rooms on its East and West through the building at a glazed clearstory
level above door height.
Photo Voltaic (PV) panels are located on the roof at the eight floor.
The south façade is composed of a projecting timber sunscreen (brise soleil).
The east façade serves two functions, clearstory light to the Council room and stack ventilation to the offices.
The west façade is composed with rest area and fresh drinking water balconies and a Café Restaurant
balcony on the seventh floor. A garden terrace and steps to the south from first floor landing form an out door
theater space.
The North façade (Street front) is plain, composed by a projecting canopy to shelter the balconies from the
seventh floor to the entrance doors at the street. A second canopy at the third floor shelters a stone seat at
the rear of the pavement.
An example of Town Hall which we looked at for public expression of civic design is the historic hall at Palma, Majorca where a stone bench on the pavement with shelter from a
projecting timber canopy at the eaves expresses a humane spirit and citizen’s access from the street to the stairs with public balconies on the upper floors also open to the street.
B1
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
AUTHOR’S DESCRIPTION OF THE DESIGN
DESCRIPTION will mainly contain
(a)
Augmentation of the architectural and urban solution of the design.
(b)
Description of the façade solution emphasizing the thermal insulation properties of the building.
Architectural and urban design solution.
The architecture of the street front of the Town Hall is a tower composed of Loggia balconies on six floors
over the Entrance Hall with a sloping canopy at the eaves of the seventh floor to establish a ‘city scale’ or
‘large order’ for a new ARCHITECTURE to the FRONT and ENTRANCE of the existing building.
This canopy also shelters the entrance at the ground floor.
The minor (East) part of the street front has a small square canopy to express the community in assembly in
the Council Room with sculpted stone façades including a circle in relief built of large stones.
The council room door and the ground floor street window are open to public view.
Universal public access by lowering the existing ground floor slab to pavement level is fundamental.
The entrance is enclosed with side-hung doors to the entrance hall, to the public staircase and to the
basement gate.
Note the reconfigured ground to second floor staircase arrangement reaching to the existing main stairs from
the Council Room balcony (first to second floor) at the street front. The movement of people from ground to
second floor is illustrated in the axonometric drawings on the A2 Board. A south facing planted terrace
reaching directly to the courtyard from the first floor and suggests out door performance uses.
The West façade, second to seventh floor, is composed of small-canopied balconies at the half landing
(natural ventilation, rest place and drinking water station) all surmounted by a canopied balcony to the café
and councilor’s rooms on the seventh floor.
The South façade Loggias are expressed as a vertical sequence of balconies on the first to the seventh
floors. The Logia balconies bisect in an asymmetrical arrangement the façade of sunscreens.
Note in particular, the south façade sunscreen balconies, refer to later diagrams including the horizontal shelf
to the departmental offices at head of door height on the ground to the seventh floors. At basement, an AREA
in the sunscreen at ground level admits daylight to the basement.
The East façade is an enclosed double skin of day-lit timber chimneys for stack ventilation and clearstory day
light to east facing offices and the Council room.
A West to East corridor from the Loggia is naturally ventilated and reaches the stack ventilation on the east
façade.
B2
6.1.2
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PORTFOLIO
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D E S I G N
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
Apart from day lighting all rooms a fundamental of the architecture is the passage of the sun from morning to
evening, raising and falling over the seasons, during each day, determining the materials, openings and
forms of construction.
The west and north facades are highly insulated with external timber cladding with openings for natural
ventilation to the stairs and loggias.
The south is shaded to enhance daylight and limit glare or excess solar gain.
The east double skin emphasizes high performance thermal insulation of the building.
Materials of the Facade
Timber Cladding principles of construction where one floor overhangs another for its own protection and the
disposal of water underpin the architectural concepts and intent of the facades.
The whole of the existing structure is clad with external insulation, which in turn is mounted on a timber subframe and weathered with breathable felt and clad with a permanent, hardwood weatherboard cladding.
The balconies into the Logia and the main stairs are projected on steel and timber beams and structural
boards with vertical hard wood columns in two orders of timber panel construction, vertical boards, (stepped
and covered), framed and panel construction. Framed beams and columns form the structure of the
balconies and the sunscreen on the south façade. See following working drawings for timber cladding
construction.
Natural Stone is employed in public locations at the walls and bench of the Council room as well as on the
pavement of the Entrance Hall and Loggias and stairs and pavement in the Courtyard Garden.
Note
The Author’s description of the design may be read with A 6.1.1 A 2 BOARD Graphic Section and B 6.1.2 B5 Floor
Plans of all 10 floors of the building.
The following drawings are included in the Author’s Description of the Design for reference and as example.
.
ENTRANCE
Wireframe of the Council Room, Entrance Hall and the Public Stairs
.
ENTRANCE
Street view from North West
.
ELEVATION
Timber cladding working drawing
.
ELEVATION
Timber cladding and balcony working drawing
.
SECTION
Façade and projecting canopy working drawing
. PHOTOGRAPH
.
PHOTOGRAPH
B2
6.1.2
Frame and panel floor to floor weathering step
Timber canopy, timber balcony and frame and panel cladding
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D E S I G N
ENTRANCE
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
WIreframe for councIl room, entrance hall publIc staIrs, fIrst floor balcony and staIrcase
to second floor loggIa
STREET VIEW FROM NORTH WEST
B2
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
A
B
P R A H A
C
D
E
F
G
7
H
PARAPET
FL 34374
9
FSL 33082
REFER TO
DWG. NO. A302
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
20
590
8
FFL 28610
HEAD28110
W703
W716
REFER TO
DWG. NO. P11
REFER TO
DWG. NO. A71
CILL 26346
7
FFL 25910
HEAD25410
W603C
W616
CILL 23646
6
W609
FFL 23210
W502
FFL 20510
HEAD22710
W516
W503D
W503C
CILL 20946
5
HEAD20010
W416
W403D
W403C
CILL 18246
4
FFL 17810
W402
REFER TO
DWG. NO.W05
HEAD17310
W316
W303D
W303C
CILL 15546
3
FFL 15110
W302
HEAD 14610
W216
REFER TO
W203D
DWG. NO. W203
W203C
REFER TO
DWG. NO. P22
CILL 12846
2
FFL 12410
W202
FFL 12410
W102
FFL 9710
HEAD 11967
W116
B
C
D
E
F
G
W103B
REFER TO
DWG. NO. W28
W108
10550
200
10550
1
FFL 9710
840
9450
9045
393
657
8250
192
175
900
100
189
900
REFER TO DWG. NO. A92
1050
207
FGL 7050
B
FFL 7010
D009
7516
G
FGL 6980
FALL
FFL 7010
6670
500
A
7516
900
1000
D002
STAIR A
REFER TO DWG. NO. A30
6425
C
CAR PARK
FFL 6425
D
E
F
G
H
B
FFL 3000
ELEVATION
TImber
claddIng
workIng
drawIng
B2
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
ELEVATI
ON
TImber cla
ddIng work
Ing drawIn
g
10
P30
6
P30
1285
19
20
643
590
3
P13
2050
20
590
20
590
20
590
1
P15
2050
20
590
20
590
20
590
A97
2050
20
590
20
590
20
590
20
2048
590
20
590
20
590
20
590
1287
20
590
20
590
3h
P15
20
590
20
643
20
19
3
P15
FSL 28610
13
14
P30
P30
6
P30
6
P30
703
as1
P32
12
as3
as3
as1
P32
P32
P18
P30
9
P30
5
P30
3
P13
as11
P30
FSL 25910
12
P30
603 C
1
P32
2
P32
3
P32
1
P18
11
P30
FSL 23210
8
P30
4
P30
1
P13
503 C
503 D
B
0
C
1
D
E
F
G
2
SOUTH ELEVATION
6TH. AND 7TH. FLOORS
ELEVATION
TImber claddIng and balcony workIng drawIng
B2
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
boarding dimension
beam dimension
P R A H A
2430
7
2
2360
P15
Face of copper gutter to
align with face of plaster
of south block below
140
Patinated copper on inodorous
felt on ex. 125 x 63mm oak boards
30
1
2106
140 x 73 x 4.7 x 6.9 S.S UB
130
P15
1787
1408
119
FSL 29225
58
S.S. Tee to eng.'s detail
4^
70
160 x 160 x 10 x 13 S.S UC
180
180 x 70 x 9 x 12 S.S RSC
300
19
180
70
56
215
150
180
160
255
4700
92
19
25
169
FSL 28610
75
1025 TO FACE OF SLAB
3
P13
30
1100
30
25
2
P13
94
15
FSL 25910
22 c/s
50
40
25
75
1025 TO FACE OF SLAB
94
60
100
152
1025
244
16mm S.S Rod
140 x 10mm S.S. CHS
30
1100
30
25
1
P13
10
40
5
50
94
32
15
25
125
38
19
221
150
27.5
500
244
FSL 23210
5
Note: all stainless steel
to have a passivated finish
94
175
CL
5
140mm dia. S.S. CHS
slotted to accomodate
16 mm dia. S.S. rod
1500 TO FACE OF SLAB
60
15
CL
100
min 50
50
215
CL
587
140
Note: see drawing P23
for full Detail
2
SECTION 1.10
6
2050
15 99
eq
eq
140
15
eq
32.5
eq
CL
CL
0
SECTION
6TH. AND 7TH. FLOORS
B2
6.1.2
P13
0.5
1.0
Façade and projecting canopy workIng drawIngs
FACADE AND PROJECTING CANOPY DETAILS
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D E S I G N
PHOTOGRAPH
B2
6.1.2
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P H OF T
r aO
mG
e RaA
nd
PH
p a nFer la m
fle
o oar n tdo
P R A H A
pf al on oe rl sf lt oe op rp et od f cl ol ao dr d sI tnegp, p we ed a ct h
l aedr de Idn gc, a n o p y
weathered canopy at eaves
at eaves
7
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
PHOTOGRAPH
P R A H A
TImber canopy and balcony
B2
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
PLANS 1 . 400
Basement Floor Plan.
Ground Floor Plan.
First Floor Plan.
Second Floor Plan.
Third Floor Plan.
Fourth Floor Plan.
Fifth Floor Plan.
Sixth Floor Plan.
Seventh Floor Plan.
Eight Floor Plan.
B5
6.1.2
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B5
6.1.2
F O R
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A R C H I T E C T U R E
D I S T R I C T
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P R A H A
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B5
6.1.2
F O R
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P R A G U E
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A R C H I T E C T U R E
D I S T R I C T
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P R A H A
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B5
6.1.2
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P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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B5
6.1.2
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P R A G U E
D E S I G N
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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6.1.2
F O R
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C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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B5
6.1.2
F O R
F O R
C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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B5
6.1.2
F O R
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C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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6.1.2
F O R
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
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A R C H I T E C T U R E
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ENERGY CONCEPT OF THE BUILDING
DESCRIPTION of the energy management system (heating, hot water preparation, air conditioning, lighting, renewable energy sources use) and expected thermal insulation parameters of
the building’s envelope, scheme of heated and not heated areas of the building, description of water use management and description of measures taken in order to reduce the heat island
effect.
Energy Management of the building is passive.
The fundamental principal is natural ventilation of the offices and rooms with PV (photo voltaic) heating of lowpressure hot water to under floor heating and bathrooms.
Day lighting of all rooms and corridors
There is little or no air conditioning.
LED electric lighting throughout.
Grey Water recycling rainwater and ice for bathroom and cleaning and irrigation.
External walls including internal Loggia walls all solid surfaces contain 25mm rigid high performance insulation
and triple layers of glass on all daylight surfaces areas, including brushes and seals on all opening sections.
Renewable source of hot water (PV) are supplemented by conversion of suitably available district steam to heat
low pressure hot water.
Floors and ceilings are exposed solid surfaces for thermal balance, consideration of reduced or limited
temperature in the entrance hall and loggias. Note thermal insulation of internal walls to the Loggia including
clearstory windows of the Loggia.
The location of car parking to the basement and introduction of the planted Courtyard and West Terrace is a
substantial move to reduce, to limit heat island effect on the site of the town hall. Planting on the floor of the
sunscreen on the south façade further suppresses the solar gain in hard surfaces of the town hall site
There follows a series of diagrams to exemplify the principles set above.
Natural Ventilation
Stack Ventilation and Solar Screening
B3
6.1.2
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A R C H I T E C T U R E
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NATURAL VENTILATION
F
L
R
E
O
S
H
G
A
G
I
R
I
F
L
A
R
E
O
S
H
G
A
G
I
R
I
A
SECTION AA – NATURAL VENTILATION
Section showing the flow of fresh air theough the building, primarily via the Loggias on each floor.
Stack effect draws air up through the void on the right.
DIAGRAM 1
F
R
E
S
A
I
R
H
L
O
G
F
R
E
A
I
R
G
S
H
I
L
A
O
G
G
I
A
TYPICAL FLOOR PLAN – NATURAL VENTILATION
Plan showing the flow of fresh air theough the building, primarily via the
Loggia from North to South (top to bottom in this case). Note the air rising
in stacks through the voids on the right.
DIAGRAM 2
B3
6.1.2
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A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
N
O
F
R
R
E
A
N
O
R
T
S
I
H
S
L
O
G
G
I
A
L
O
G
G
I
A
L
O
G
G
I
A
L
O
G
G
I
A
L
O
G
G
I
A
H
S
L
O
L
G
O
G
G
O
E
R
E
S
A
I
R
N
G
T
R
A
I
G
M
L
F
O
U
T
7
H
H
R
T
P R A H A
N
C
Y
O
R
U
T
H
A
I
A
O
A
'
S
O
F
F
G
I
A
I
C
E
E
L
O
G
G
I
A
L
O
G
G
I
A
L
O
G
G
I
A
L
O
G
G
I
A
H
SECTION BB – NATURAL VENTILATION
E
M A
Y O R
' S
O F F I C E
Section
showing
the flow
of fresh air theough the building, primarily via the Loggias on each floor.
N
T
R
A
N
C
E
DIAGRAM 3
F
F
R
E
S
A
I
R
R
E
S
A
I
R
H
H
TYPICAL FLOOR PLAN – NATURAL VENTILATION
DIAGRAM 4
B3
6.1.2
Plan showing the flow of fresh air theough the building, primarily via the
Loggia from North to South (left to right in this case). Note the air rising in
stacks through the voids at the top of the plan.
Page 3 of 5
PORTFOLIO
CCEA
N E W
C E N T R E
T O W N
H A L L
A R C H I T E C T U R A L
F O R
F O R
C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
STACK VENTILATION AND SOLAR SCREENING
DOUBLE – SKIN FAÇADE: STACK VENTILATION
D I A G R A M
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
P R A H A
7
Section showing the double – skin façade on the East Elevation. In Summer, a stack effect
from rising heat draws air through the building, ventilating and cooling it.
5
DOUBLE – SKIN FAÇADE: THERMAL CUSHION
DIAGRAM 6
Section showing the double – skin façade on the East Elevation. In Winter, a the skin is
closed at the top, preventing the stack effect and creating a thermal cushion of warm air.
from rising heat draws air through the building, ventilating and cooling it.
B3
6.1.2
Page 4 of 5
PORTFOLIO
CCEA
N E W
C E N T R E
T O W N
H A L L
A R C H I T E C T U R A L
F O R
F O R
C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
SUNSCREEN / BRISE SOLEIL: THERMAL CUSHION
P R A H A
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
O
F
F
I
C
E
7
Section showing the Sun Screen on the South Elevation. It screens the building’s interior
from the high Summer sun, but allows the low Winter sun to shine in.
DIAGRAM 7
B3
6.1.2
Page 5 of 5
PORTFOLIO
CCEA
N E W
C E N T R E
T O W N
H A L L
A R C H I T E C T U R A L
F O R
F O R
C E N T R A L
P R A G U E
D E S I G N
E U R O P E A N
7
A R C H I T E C T U R E
D I S T R I C T
C O M P E T I T I O N
P R A H A
7
CALCULATION OF INVESTMENT COSTS
Calculation of Investment Costs Filled in document no. 08 with eventual comments.
B4
6.1.2
Page 1 of 1
PORTFOLIO