DIGITAL PORTFOLIO

Work completed during the second year first term

CHUA CHANG YONG

Design Principal Method & Sustainable Housing Complex

CONTENT

DESIGN PRINCIPAL METHOD Concept .............................. 2 Physical Model .................. 4 Digital Model .................... 8 Digital Fabrication ............ 12

SUSTAINABLE HOUSING COMPLEX

Site Analysis ....................... 16 Precedent Studies 1 ........... 20 Precedent Studies 2 ........... 24 Praxis .................................. 28 Masterplan ......................... 36 Key Section ........................ 38 Housing ..............................40

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CONCEPT

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DESIGN PRINCIPAL METHOD

Natural Ventilation in Prairie Dog Underground Tunnel Apart from having an ecological advantage, I real-ised that the prairie dog tunnel also had potential inspiration for the housing scheme. The tunnel was initially created as a route and then developed into living spaces. Different hierachy of space could be seen from the diagram (left). Besides, the social organisation and spacing were interest-ing to study as well.

The diagram shows how aeroil concept works. As the air flow through the shape, it generates two differ-ent wind speeds where the faster wind speed is on top and the lower one is below. Faster wind flow will have lower air pressure and vice versa. This cause a pressure difference which produce a lift force under the aerofoil.

The principle works the same for the natural ventilation system in prairie dog underground tunnel.

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PHYSICAL MODEL

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This was a big plaster model created based on the principle learnt in prairie dog tunnel to test the actual performance of the ventila-tion system. The model also passed the structural test.

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Searching for a typology which is aesthetically pleasing, functional, ecological and structurally stable.

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DIGITAL MODEL

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The diagrams above shows how the the initial concept of prairie dog tunnel ventilation can be developed into the housing scheme. The left pictures are digital illustra-tion of the tunnel rendered with 3D Studio Max.

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Directions The most efficient directions are the tunnels perpendicular to the planes and same direction with wind.

Number of Twists The increase in twists doesn’t increase the air-flow as expected.

Branches The inroduction of branches does not affect the overall effect of the airflow.

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Shapes The different twisted spiral shape shows no real difference.

Diameters The amount of airflow is directly propor-tional to the area of the air tunnel.

Angles or Distance Between Two Planes The most efficient angles are between 40 to 60 degree. This also applies to the height. As the height is poportional to the angles.

Digital Experimentation Each model was tested using a digital software called Vasari. The aim of the test is to explore the performance of ventilation system in different typology.

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DIGITAL FABRICATION

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This conceptual ‘toy’ is created to generate possible ideas for design

Courtyard.

Public Stairs

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1. Create a cylinder. 2. Modifier list - Stetch + Amplify 3. Modifier List - Edit poly to make it slanting

4. Repeat Steps 3 for 20 times as there are 20 height segments

8. Modifier list - 9. A box as high as the cylinder was created and combine with half of the cylinder

10. Create- Geometry- Compound Ob-jects- Boolean- Pick the box as boolean and choose cylinder as operanda B

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13. The drawing is then exported to illustrator and ready for laser cutting.

5. Circular surface need to be changed to oval surface

6. Modifier list - Taper - fixing certain axis in order to get the desire shape

7. Checking the angle

11. Utilities (hammer icon)- Max Script- sectioning- 60 Z sections

12. Export the selected lines as Autodesk DWG file for cleaning.

MAKING PROCESS

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SITE ANALYSIS

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Located in the city centre of Cardiff, the site is a very busy area. The potential noise can come from the nearby bus station, train station, cars on the road, water bus as well as the crowd from the stadium. The place is also located around the route of the south-west wind which makes the site quite suitable for natural ventilated hous-ing.

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The top most panaromic dia-gram illustrates the skyline which formed by surrounding buils-ings. The one below it shows the housing area which is built along the river. The bottom left is the famous landmark of cardiff which the Millenium Stadium built for rugby games. The bottom right is the central railway station of Cardiff.

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PRECEDENT STUDIES 1

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Key sustainable elements:- 6000 windows with solar shading- low energy ventilation- concrete walls keeps cool air from the night for day time compensation- pre-cast panels reduce waste on site

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Analysis Under the metaphorical concept of the ‘sponge’, the Simmons Hall dormitory adopts a design pierced with hollow openings soaking up skylight and distributing it along the internal fabric of the space. Steven Holl, the architect, refers to these porous elements as the lungs where light would be brought down whilst ventilating air would rise up. The architecture also presents a fresh approach to break out of the typical dormitory design. Drawing comparison to a compressed city, the building holds both public and pri-vate areas in almost equal ratio offer-ing the residences street-level dining, 120-seats theatre, services such as dry washing, and a night club.

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PRECEDENT STUDIES 2

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This project by OMA is a respond to an invitation of the Japanese architect Arata Isozoki who addressed 7 architects to propose a concrete version that will implement the client ambition to “introduce a new urban life stile in Japan”. Each unit is organized towards its own interior space. There are no inner places for public activity within the project.Public activity is possible only where the project meets the city and a special program (a store) is provided for that cause. The dwellers don’t get any spaces for meeting spontaneously, but there are cases of seeing and glancing from unit to unit. It is just the amount of exposure that makes the whole building human, but don’t allow any inconvenience and suspicious feelings for the privet dweller in each unit.

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24 dwelling assemble tow free stand-ing blocks placed one next to another and form altogether a gate to an inner area of tow 120 meter high dwelling towers designed by Arata Isozoki. Each dwelling unit contains a 3 stories ma-jor vertical development that provides it with light and space in the center of the house. This vertical arrangement is the core of every unit and gives the dweller deferent levels of isolation and exposure.

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The division of each unit to 3 stories is well pro-nounced both inside and outside the building by means of material use and form. As a whole these tow dwelling blocks can be seen as an experiment in packing and condensing the qualities of mod-ern western dwelling spaces along with traditional Japanese void arrangement.

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PRAXIS

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SUSTAINABLE HOUSING

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Wind

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This is a diagramatic explana-tion of my concept development. There intention is to tell a story graphiclly with minimum use of words.

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Masterplan shows the context, public space and programme at ground floor level.

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Masterplan shows the 20 housing units and the couryard concept.

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Key Section 39

Ground Floor Plan First Floor Plan

HOUSING40

Couryard House Section Rather than having a tunnel, the courtyard itself becomes the natural ventilation system which demonstrates the idea of integrity. The courtyard tree also gives fresh air to the occupants.

Natural Ventilation

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Detailed Sections

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PEACE Creating a healthy environment based on Japanese Zen Couryard Concept. The beauty of nature becomes main focus or natural decoration.

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PRIVACY Enclosed by four pure white walls, the interior is connected to the sky.

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