STUDIO AIR 2017, SEMESTER 1, FINN#8 YUEBING XIAO/751795
SECTIONING & PATTERNING
content B 1.0 RESEARCH FIELD/ SECTIONING B 2.0 CASE STUDY 1.0 BanQ Iterations selection criteria
B 3.0 CASE STUDY 2.0/ PATTERNING de Young Museum
B 4.0 TECHNIQUE: DEVELOPMENT B 5.0 TECHNIQUE: PROTOTYPE prototype 1,2
B 6.0 TECHNIQUE: PROPOSAL proposal 1&2
B 7.0 LEARNING OGJECTIVES & OUTCOMES B 8.0 APPENDIX - ALGORITHMIC SKETCHES B 9.0 REFERENCE LIST
B 1.0 RESEARCH FIELD SE CTIO NING
Sectioning that used on algorithmic design can be defined as is a technique of taking numerous cross sections through a form (3D). Besides, in terms of construction, it is a method to produce not only surface but structure and in terms of digital fabrication, it is a very efficient approach as a result of all necessary data for CNC-milling and laser cutting are offered by computer.[1] For this field, even though basic sectioning is a simple algorithimic modelling in comparison with other fields, it tends to be complex by applying wafflegrid, contour and patterning etc. At the same time, dividing, curving and extrusion are the actions to generate sectioning forms. Various methods and cases of sectioning tecnique to be constructed are explored and discussed. For example, the two cases shown on this page being selected represent two different outcomes regarding sectioning concepts.
Metropol Parasol -Las Setas-, Sevilla
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CONCEPTUALISATION
One Main Office Renovation / dECOi Architects
Specifically, the process of producing the first example, One Main Office Renovation, shows how the curved surface is generated by utilising contour lines or height mapper components. In this case, the sectioning project presents the sense of continuity by going though whole huge space between both ceiling and floor. Personally, I think sectioning field can be well utilised in a huge public or office space because its continuity and efficiency of installation. For the second example, as one of the largest timber structures built in the world, it is constructed by wafflegrid. Metropol’s interweaving waffle-like wooden panels rise from concrete base reinforced with steel, which are positioned in such a way to architecturally form canopies and walkways below the parasols[2]. This case gives us an opportunity to create such a huge structure using sectioning technique. From my own understanding, sectioning parametric designs provide possibilities and solutions of shapes for huge spaces and it can also apply to small sculptures with sense of movement. Besides, the frame is kind of curved actions and the material gennerally using plywood is raw and natural which help to expresss the organic form and ideas.
http://www.designstrategies.org/design-strategies/principles/sectioning/ CONCEPTUALISATION 5
B 2.0 CASE STUDY 1.0 BanQ/office dA Location: Boston, MA, United States Architect: office dA
The script below shows an example of how the sectioning technique is used to create a space for this case. The method is to start from creating a point grid on a referenced surface. Using white and black image to decide whether the points on the referenced surface move vertically or not, and also the distance between end point and based surface. after moving points, use comment that surface from points to create the curved surface. And then, on the other side, using union box and setting preframe to cut the surface that is created by moved points. After cutting it, I got a series of curves that are cut from curved surface and at the end, loft vertivally these curces and the curves on the reference surface.
divided surface: creating grid of a surface and then get the points
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CONCEPTUALISATION
image sampler: to create the different heights of points
move points: using math sets to adjust the distance between end point and base surface(point)
partition: using union box and preframe to create the number of layers should be cut along one direction
loft curv and by e
: between base ve on base plane d curve created extruded points
CONCEPTUALISATION 7
ITERATION v - value: mainly adjust the shape of movement
v=3, u=30
v=4, u=30
v=4, u=30
Height Mapper + Image Sampler
the second method of generate a sectioning form: It starts from drawing a referenced surface. After that, type comment of “pointson“ on the rhino and then use comment of “rebuild“ to set up a grid-group of points on thid surface. Now I can control these point to get the curved surface I want. In grasshopper, I only need to define the curved surface I’ve doe and then connect contour.
v=7, u=30
v=12 u=30
u - value: mainly adjust the offset between each plate
v=10, u=2
v=10, u=5
v=10, u=10
definition of how to create the sectioning
v=10, u=20
v=10, u=100
ITERATION
extrusion by different based shape
cut in different vectors 45 degree
extrusion based on contour lines
wafflegrid
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CONCEPTUALISATION
SELECTION CRITERIA Though exploring and experiementing with grasshopper script, it can be found that some of iterations that are tend to be failed from several reasons. To evaluate the success of all experiments, my selection criteria are shown below: 1. AESTHETIC QUALITY
2. CONSTRUCTABILITY FOR FABRICATION
3. EFFICIENCY OF INSTALLATION
4. POSSIBILITY FOR FUTURE DEVELOPMENT
This iteration is a simple sectioning form that using image sampler to create the curved surface and being cut into layers. It is easier to be fabricated and installed.
CONCEPTUALISATION 11
This iteration is got by extruded lines at first and then transform vertical lines to cylinders or other shapes. The extruded lines in fact are coming from the intersection between wafflegrid structure. The difficulties from criteria are fabrication and installation because the shape of cylinder is not easier to get than timber plates by laser cutting or CNC.
This form is extruding cont on a curved extrusion direc by a curve r in z direction. wafflegrid str the upper laye structure to int layer. The ess is fabrication, or CNC becaus curves is not s
s generated by tour lines based surface and the ction is controlled rather than just . Besides it is a ructure, that is, er as a supporting terlock with lower sential difficulty like laser cutting se the pattern of straight line.
This form is a wafflegrid structure, that is eaiser to fabricate and install because the elements of whole structure can be laser cut and then insert all element in to a wafflefrid form.
B 3.0 CASE STUDY 2.0/
PA T T E R N I N G
DE YOUNG MUSEUM Location: San Francisco Architect: Herzog & De Meuron In this case, for the facade, the architects exploredmainly utilise the grasshopper technique, that’s is image sampler to create the varied and dynamic patterns for the museum. The material that is applied for the facade is copper. The reasons of using this material ,firstly, because the texture and colour of copper allows the design to be part of surrounding environment, secondly, oxidation and the corrosion of the copper help the facade gradually change, then got a new pattern years by years. At end, the facade with void and solid parts gives the way of light in. The patterning that is applied on the facade consists of two layers, which are perforation and extrusions.[3] In the conventional architecture, patterning as a kind of ornament is mainly used as a symbolic decoration to present associated culture at a specific period, like Islamic ornamentation. Apart from using patterning in relation to culture, during the period of modernism, some of architects started to use patterning to display the raw material texture, for example, Barcelona Pavilion by Mies. Nowadays, patterning as a tectonic can be achieved much more complex than the previous by using computation tools, like grasshopper. From my understanding, generallly the patterning used in architecture are designed by a series of scripts to get complex random or repeating shapes. It is not always for construction purpose but as responsibility for architects to formulate architectural language and express design ideas. Sometimes, the pattern is not just for the purpose of facade aesthetics but for functional consideration, like creating interesting forms of shading and light. I chose patterning form as my reverse study because I want to explore the possibilities of complex shapes that can be applied to my design. Furthermore, I think there are several ways I can try to create various patterns,like image sampler, attraction point/curves, cull pattern and projecting repeating elements and so on.
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FIG.1: (EXPLAIN HERE & REFERENCE AT THE END OF YOUR DOCUMENT)
REVERSE PROCESS
base surface
evaluate surface
rectangle grid
image sampler
evaluate surface
rectangle grid
image sampler
circle remap
remap
expression
circle
circle
move
loft
B 4.0 TECHNIQUE : DEVELOPMENT
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B 5.0 TECHNIQUE : PROTOTYPE 1
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B 5.0 TECHNIQUE : PROTOTYPE 2
FABRICATION P1
FABRICATION P2
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FABRICATION P2 - JOINT
Maple Leaf Square Canopy
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B 5.0 TECHNIQUE : PROPOSAL 1
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PRECEDENT
Project: Aoba -tei Restaurant Location: Japan Architect: Abe, Hitoshi
Project: PAPER CHANDELIERS BY CRISTINA PARREÑO ARCHITECTURE AND MIT
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B 5.0 TECHNIQUE : PROPOSAL 2 2
Combination of two iterations, that app voronoi form. When light is on, the ima
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plying patterns on the surface of extruded age will be reflected on the ground.
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B 7.0 LEARNING OBJECTIVES & OUTCOMES
After few weeks study on grasshopper, my skill has improved, especially after working with two case studies. However, it is still not enough. In part B, I selected two fields to explore, sectioning and patterning and now know how to change or define some simple patterning forms but not enough to be complex. Later, I will try to combine some of simple script I wrote to produce more complex proposals.
In terms of design process, after mid-term presentation, the problems I have got are that firstly, iterations are not enough and interesting and the studies of precedents are not influencial to my design. There are improvements of my design process, specifically, later, I should try to combine or create new scripts that is appropriate for the ballroom design. Besides, the technique on the fabrication should be considered as well, especially, the connections between different elements.
For part C, I am going to redefine a design proposal and develop it. The research field I am going to do is sectioning because I am thinking for a large ballroom, the design should go though the whole ceiling continuously and has a better relationship with the ground and wall, besides, this choice is much more efficiency to be fabricated and installed. I will further develop the iteration on the right and to find an approch to produce and construct.
B 8.0 APPENDIX
B 9.0 REFERENCE LIST 1. ‘Sectioning’, Designstrategies for computing design, (2017). Retrived from <http://www.designstrategies.org/design-strategies/principles/ sectioning/>
2. ‘Metropol Parasol : The World’s Largest Wooden Structure’, Yatzer, (2011). Retrived from < https://www.yatzer.com/Metropol-Parasol-TheWorld-s-Largest-Wooden-Structure-J-MAYER-H-Architects >
3. ‘M.H. de Young Museum / Herzog & de Meuron ‘, Archdaily, (2010), Retrived from < http://www.archdaily.com/66619/m-h-de-young-museumherzog-de-meuron >
Aoba Tei Restaurant 36
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