AEOLIAN SYMBIOSIS
An alternative approach to coastal architecture
Architectural Engineering | P5 | 11.11.2016 Calcen Chan 4007093
NARRATIVE OVERVIEW
I N T RO D U CT I O N
R E L E VA N T R ESEA RC H
DESIGN PROPOSAL
The aeolian landscape
Setup academic approach
Proposal strategies
The dunes in debates and discussions
Outline of research parameters
Design: Spatial Experience
History and dune developments
Tools of research
Design: Material & Expression
Design goal
Research parameters results
Design: Construction
Sites analysis and applications
Design impression
INTRODUCTION
the dune and the aeolian landscape
sand & beach
coastal living
wind & movement
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dune hills & safety
C.K.W. CHAN
INTRODUCTION
the dune and the aeolian landscape
sea deposits sand on the beach
wind picks up and transports sands landwards
obstructions, like grass, traps the sand
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dune grow overtime
C.K.W. CHAN
INTRODUCTION
debates and discussions regarding coastal building on the dunes
Source: NOS.nl, https://beschermdekust.nl
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INTRODUCTION
debates and discussions regarding coastal building on the dunes
Castricum aan Zee, North Holland, Netherlands
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INTRODUCTION
debates and discussions regarding coastal building on the dunes
Nieuwpoort-Bad, Nieuwpoort, West Flanders, Belgium
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C.K.W. CHAN
INTRODUCTION
history and dune development
Castricum 2013 Coastal development of Castricum Source: Google Earth
Castricum 2015
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INTRODUCTION
history and dune development
Petten 2013 Coastal development of Petten Source: Google Earth
Petten 2015
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C.K.W. CHAN
INTRODUCTION
history and dune development
Coastal development of Petten
Camping Corfwater in Petten
Beach houses planned for Castricum
Beach houses Julianadorp aan Zee
Various plans for new beach houses capitalizing the lucrative dune/beach landscape.
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C.K.W. CHAN
INTRODUCTION design goal
DIFFERENT STRATEGY TO COASTAL BUILDING WITH THE EMPHASIS ON CREATING AN INTEGRATED ARCHITECTURAL DESIGN THAT HARMONIZES WITH THE AEOLIAN LANDSCAPE. PROPOSE A
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C.K.W. CHAN
RELEVANT RESEARCH
RELEVANT RESEARCH
Current beach houses and existing research
Beach houses along the coast near Zeeland
Planned beach houses in Kijkduin
Sources: Stuiflab aE TUDelft, http://www.pzc.nl/regio/zeeuws-nieuws/strandhuisjes-slecht-voorsterkte-duinen-1.5009713, https://www.pinterest.com/pin/441845413414890452/, http://www. kijkduinstrandhuisjes.nl/en/,
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C.K.W. CHAN
RELEVANT RESEARCH Outline research parameters - Phase 01
DISTANCE [15]
ANGLE OF REPOSE [4]
0.5m to 10m
80°, 65°, 50°, 35°
ANGLE OF ATTACK [4]
LOCATION [3]
90°, 75°, 60°, 45°
front, top, back
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RELEVANT RESEARCH Tools of research
ANSYS SIMULATIONS
WIND TUNNEL TESTING [ 16/63 ]
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RELEVANT RESEARCH Tools of research
29 .10.2015
16 .11.2015
11.12.2015
16.11.2015
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RELEVANT RESEARCH Tools of research
Play Video
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RELEVANT RESEARCH Tools of research
60 cm
100 cm 400 cm
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RELEVANT RESEARCH Tools of research
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RELEVANT RESEARCH
Outline research parameters - Phase 01 conclusions Distance
1m
3m
Middle Points 35
5m
WIND SPEED [M/S]
30 25 20 15 10 5 0
0.5
1
1.5
2
2.5 M1 [m/s]
3
3.5
4
4.5
DISTANCE [M] M2 [m/s] M3 [m/s]
5
6
7
8
9
10
M4 [m/s]
Graph for wind speeds measured between each building against distance
8m
CONCLUSION: Higher wind speeds = more erosion Effects is very low from 5m onwards
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RELEVANT RESEARCH
Outline research parameters - Phase 01 conclusions Angle of Attack
90째
75째
60째
45째
CONCLUSION: Lower angle = less erosion Erosion seems to decrease linearly
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RELEVANT RESEARCH
Outline research parameters - Phase 01 conclusions Angle of Repose
80°
65° 50° 50°
35°
35°
CONCLUSION: Lower angle = less erosion, but this also results in less usable space
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RELEVANT RESEARCH
Outline research parameters - Phase 01 conclusions Location
Before
CONCLUSION: front = more erosion The front will most likely see effects faster
After
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RELEVANT RESEARCH Research application on site
BLOWOUTS / subtractive
ACCUMULATION / additive [ 25/63 ]
C.K.W. CHAN
RELEVANT RESEARCH chosen sites and analysis
Petten Castricum
11.5m human settlements
Amsterdam
Petten sectional view
Zandmotor
22m
SWW
N
Castricum sectional view
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C.K.W. CHAN
RELEVANT RESEARCH Castricum analysis
Blowouts ensure sands can get to the greydunes
The gap enables the wind to carry the sands more easily
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Higher frontal dune prevents sands blowing to the back
C.K.W. CHAN
RELEVANT RESEARCH Petten analysis
Planting beachgrass to hold the sands
buildings and residences right behind the main dune
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Simulation shows how easily sands can blow over de dune
C.K.W. CHAN
DESIGN PROPOSAL - FORM -
DESIGN PROPOSAL Petten proposal - parameters
ANGLE OF REPOSE
Before
20% POROSITY
ANGLE OF REPOSE
After
Before
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80% POROSITY
After
C.K.W. CHAN
DESIGN PROPOSAL Petten proposal - reference
Pilot Project Strandhuisjes, b-vk architecten, cadzand bad en groede, Gemeente Sluis. Source: http://www.noordzijde.eu/nl/projecten/036/project.html
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C.K.W. CHAN
DESIGN PROPOSAL Castricum proposal - outline
DISTANCE: induce high wind speeds
14.7m 11.7m 8.7m 5.7m
ANGLE OF ATTACK: guiding wind flow
LOCATION: effective areas
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C.K.W. CHAN
DESIGN PROPOSAL Castricum proposal - parameters
α
angle
distance distance
SWWSWW
i
t e nl
i
t e nl
N
N
SWWSWW
distance distance between between the two the buidlings two buidlings
α
angle
i
t e nl
i
t e nl
N
N
angle of angle inner offacade inner facade to windtodirection wind direction
2, 5, 10, 15, 20m
1°, 5°, 10°, 15°, 20° [ 33/63 ]
C.K.W. CHAN
et l n i
SWW
N
et l n i
SWW
distance between the two buidlings
N
angle of inner facade to wind direction
α
DESIGN PROPOSAL
Castricum proposal - measurements angle
distance
3
SWW sample areas
SWW
i nl
Overlap N
et
4
2
in
1 probes
l et
N
SWW
distance between the two buidlings N t
SWW
i nl
in
l et
N
angle of inner facade to wind direction
e
probes in wind tunnel for erosion rates measurement
sampling areas for wind speeds calculations
5° - 2m distance [m] degrees
2
5
10
15
20
1°
3
5°
probes
sample areas
15°
validity of configurations for simulation and wind tunnel
2
1
10°
20°
4
SWW
in
l et
sampling areas for wind speeds calculations
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N
SWW
in
l et
N
probes in wind tunnel for erosion rates measurement
C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Data gathering
Image snapshots
Video footage
Documentation [ 35/63 ]
Data processing
C.K.W. CHAN
•••
10
Funnel zone
9
Open area
8 7
distance [m]
2
5
32.2% 31.1% 1 DEGREE_GRAPH Efficiency
10 23.0%
15 26.6%
Inlet
•• DESIGN Erosion rate
20
•
•••
••
••
Legends
5
10
15
32.2%
31.1%
23.0%
26.6%
20
23.1%
15.3%
46.8%
5 N/A
10
•••••
23.1%
15
••
••
Erosion rate
15.3%
Open area
9
Inlet
8 7
5
10
15
20
N/A
N/A
23.1%
15.3%
46.8%
Erosion rate
Funnel zone
10
2
••
Inlet
Legends
46.8% 11
Erosion rate
Funnel zone
2013
Open area
28.8%
Legends
Wind Speed [m/s]
12
Efficiency
distance [m]
•• 11
Inlet
7
9
20
12
9
Funnel zone
••
13
10
10
Efficiency
Open area
••
Inlet Erosion rate
Efficiency
5 DEGREES_GRAPH
••• •
•
••
12
13
Funnel zone
10
N/A 19.3% 5 DEGREES_GRAPH
10 40.1%
•••
Efficiency
•
15 37.8%
••
••••
Erosion rate
distance [m]
2 N/A
21.0%
11 10 9 8
5
10
N/A
15
N/A
distance [m]
Legends Funnel zone
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Open area Inlet
2 N/A
10
Funnel zone Wind Speed [m/s] Open area
9
13
8
12
Inlet
11
Erosion rate
•••• 20
19.2%
Legends
11
7
21.4%
15 DEGREES_GRAPH Efficiency
13
••
15 DEGREES_GRAPH
••••
Inlet
20
12
••••
Open area
Wind Speed [m/s]
•
12
Legends
11
7
5
Wind Speed [m/s]
13
8
2
15 DEGREES_GRAPH
Wind Speed [m/s]
9
distance [m]
2 N/A
11
7
2
15
7
Wind Speed [m/s] Open area
8
N/A
distance [m]
8
distance [m]
10
••
10 DEGREES_GRAPH Efficiency
13
12
8
•••••
PROPOSAL N/A
28.8%
10
••9
distance [m] Castricum proposal -2 results5
Wind Speed [m/s]
•
10 DEGREES_GRAPH
••
Legends
10
Funnel zone
9
Open area
8
Inlet
••
7
Erosion rate
Wind Speed [m/s]
5 N/A
10 N/A
2013
15
••••
12 19.2%
••••
21.4% 11 10 9
Legends Funnel zone Open area
C.K.W. CHAN
•••
10
Funnel zone
9
Open area
8 7
distance [m]
2
5
32.2% 31.1% 1 DEGREE_GRAPH Efficiency
10 23.0%
15 26.6%
Inlet
•• DESIGN Erosion rate
20
•
•••
••
••
Legends
5
10
15
32.2%
31.1%
23.0%
26.6%
20
23.1%
15.3%
46.8%
5 N/A
10
•••••
23.1%
15
••
••
Erosion rate
15.3%
Open area
9
Inlet
8 7
5
10
15
20
N/A
N/A
23.1%
15.3%
46.8%
Erosion rate
Funnel zone
10
2
••
Inlet
Legends
46.8% 11
Erosion rate
Funnel zone
2013
Open area
28.8%
Legends
Wind Speed [m/s]
12
Efficiency
distance [m]
•• 11
Inlet
7
9
20
12
9
Funnel zone
••
13
10
10
Efficiency
Open area
••
Inlet Erosion rate
Efficiency
5 DEGREES_GRAPH
••• •
•
••
12
13
Funnel zone
10
N/A 19.3% 5 DEGREES_GRAPH
10 40.1%
•••
Efficiency
•
15 37.8%
••
••••
Erosion rate
distance [m]
2 N/A
21.0%
11 10 9 8
5
10
N/A
15
N/A
distance [m]
Legends Funnel zone
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Open area Inlet
2 N/A
10
Funnel zone Wind Speed [m/s] Open area
9
13
8
12
Inlet
11
Erosion rate
•••• 20
19.2%
Legends
11
7
21.4%
15 DEGREES_GRAPH Efficiency
13
••
15 DEGREES_GRAPH
••••
Inlet
20
12
••••
Open area
Wind Speed [m/s]
•
12
Legends
11
7
5
Wind Speed [m/s]
13
8
2
15 DEGREES_GRAPH
Wind Speed [m/s]
9
distance [m]
2 N/A
11
7
2
15
7
Wind Speed [m/s] Open area
8
N/A
distance [m]
8
distance [m]
10
••
10 DEGREES_GRAPH Efficiency
13
12
8
•••••
PROPOSAL N/A
28.8%
10
••9
distance [m] 2 5 Castricum proposal - results filtering
Wind Speed [m/s]
•
10 DEGREES_GRAPH
••
Legends
10
Funnel zone
9
Open area
8
Inlet
••
7
Erosion rate
Wind Speed [m/s]
5 N/A
10 N/A
2013
15
••••
12 19.2%
••••
21.4% 11 10 9
Legends Funnel zone Open area
C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Simulation deep analysis
5 DEGREES_GRAPH
m]
••• •
12
••
Legends
11
Funnel zone Open area
9 8
••
7
2
5
10
15
20
N/A
19.3%
40.1%
37.8%
21.0%
0 - ...
10 DEGREES_GRAPH
cy
•
13
10
cy
m]
5° | 10m
Wind Speed [m/s]
2
3
4
10° | 10m •• •••••
5
12
••
N/A
N/A
23.1%
15
0 - ... 15.3%
3
46.8%
10
11
12 [m/s]
Funnel zone
10
2
9
Legends
11
20
8
13
Open area
••
7
10
7
Wind Speed [m/s]
8
5
Erosion rate
6
9
2
Inlet
4
5
6
Inlet Erosion rate
7
8
9
10
11
[m/s]
Wind Speed distribution
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Wind tunnel deep analysis
5° | 10m
Before
After
Before
After
10° | 10m
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DESIGN PROPOSAL
Castricum proposal - results filtering_Final
View from Sea
View from sides
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Close-up view
C.K.W. CHAN
DESIGN PROPOSAL - SPATIAL EXPERIENCE -
17.7 DESIGN PROPOSAL
14.7
Castricum proposal - Interior design
11.9
7.1
4.1
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DESIGN PROPOSAL
Castricum proposal - Interior design
17.7 14.7
11.9
7.1
4.1
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C.K.W. CHAN
DESIGN PROPOSAL - MATERIAL & EXPRESSION -
DESIGN PROPOSAL
Castricum proposal - Materials and Expression
WOOD (WARM)
CONCRETE
STEEL
WOOD (FADED)
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DESIGN PROPOSAL
Castricum proposal - Materials and Expression
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DESIGN PROPOSAL
Castricum proposal - Materials and Expression
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DESIGN PROPOSAL
Castricum proposal - Materials and Expression
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INTERIOR, BLOCK B
DESIGN PROPOSAL - CONSTRUCTION -
DESIGN PROPOSAL
Castricum proposal - Build up sequence
Excavate plot and insert temporary retaining walls during assembly
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DESIGN PROPOSAL
Castricum proposal - Build up sequence
Drill and place foundation piles on predefined grid system
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DESIGN PROPOSAL
Castricum proposal - Build up sequence
Place timber joists to support for prefabricated base floor modules
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Build up sequence
Insert the Structural Insulated Panels with maximum width of 2.5m (Sea container width limit)
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Build up sequence
Follow up with inserting prefabricated Interior modules
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Build up sequence
Add timber joists and roof finish (also SIPS)
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Build up sequence
Same assembly process for the remaining units
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C.K.W. CHAN
DESIGN PROPOSAL
Castricum proposal - Facade composition
Structural Insulated Panel
Whitewash Oak laths Support timber beam
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OSB Double glazing
EPS foam
Support beam OSB
Inner oak laths
C.K.W. CHAN
DESIGN PROPOSAL - IMPRESSION -